Series comparison

-[Qemu-devel] [PULL 00/16] target-arm queue
+[PULL 00/36] target-arm queue
-The following changes since commit ad1b4ec39caa5b3f17cbd8160283a03a3dcfe2ae:
+arm queue; dunno if this will be the last before softfreeze
 or not, but anyway probably the last large one. New orangepi-pc
 board model is the big item here.
-  Merge remote-tracking branch 'remotes/kraxel/tags/input-20180515-pull-request' into staging (2018-05-15 12:50:06 +0100)
+thanks
 -- PMM
 The following changes since commit 67d9ef7d541c3d21a25796c51c26da096a433565:
   Merge remote-tracking branch 'remotes/pmaydell/tags/pull-docs-20200312' into staging (2020-03-12 15:20:52 +0000)
 are available in the Git repository at:
-  git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20180515
+  https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20200312
-for you to fetch changes up to ae7651804748c6b479d5ae09aeac4edb9c44f76e:
+for you to fetch changes up to aca53be34ac3e7cac5f39396a51a338860a5a837:
-  tcg: Optionally log FPU state in TCG -d cpu logging (2018-05-15 14:58:44 +0100)
+  target/arm: kvm: Inject events at the last stage of sync (2020-03-12 16:31:10 +0000)
 ----------------------------------------------------------------
 target-arm queue:
- * Fix coverity nit in int_to_float code
+ * Fix various bugs that might result in an assert() due to
- * Don't set Invalid for float-to-int(MAXINT)
+   incorrect hflags for M-profile CPUs
- * Fix fp_status_f16 tininess before rounding
+ * Fix Aspeed SMC Controller user-mode select handling
- * Add various missing insns from the v8.2-FP16 extension
+ * Report correct (with-tag) address in fault address register
- * Fix sqrt_f16 exception raising
+   when TBI is enabled
- * sdcard: Correct CRC16 offset in sd_function_switch()
+ * cubieboard: make sure SOC object isn't leaked
- * tcg: Optionally log FPU state in TCG -d cpu logging
+ * fsl-imx25: Wire up eSDHC controllers
  * fsl-imx25: Wire up USB controllers
  * New board model: orangepi-pc (OrangePi PC)
  * ARM/KVM: if user doesn't select GIC version and the
    host kernel can only provide GICv3, use that, rather
    than defaulting to "fail because GICv2 isn't possible"
  * kvm: Only do KVM_SET_VCPU_EVENTS at the last stage of sync
 ----------------------------------------------------------------
-Alex Bennée (5):
+Beata Michalska (1):
-      fpu/softfloat: int_to_float ensure r fully initialised
+      target/arm: kvm: Inject events at the last stage of sync
       target/arm: Implement FCMP for fp16
       target/arm: Implement FCSEL for fp16
       target/arm: Implement FMOV (immediate) for fp16
       target/arm: Fix sqrt_f16 exception raising
-Peter Maydell (3):
+Cédric Le Goater (2):
-      fpu/softfloat: Don't set Invalid for float-to-int(MAXINT)
+      aspeed/smc: Add some tracing
-      target/arm: Fix fp_status_f16 tininess before rounding
+      aspeed/smc: Fix User mode select/unselect scheme
       tcg: Optionally log FPU state in TCG -d cpu logging
-Philippe Mathieu-Daudé (1):
+Eric Auger (6):
-      sdcard: Correct CRC16 offset in sd_function_switch()
+      hw/arm/virt: Document 'max' value in gic-version property description
       hw/arm/virt: Introduce VirtGICType enum type
       hw/arm/virt: Introduce finalize_gic_version()
       target/arm/kvm: Let kvm_arm_vgic_probe() return a bitmap
       hw/arm/virt: kvm: Restructure finalize_gic_version()
       hw/arm/virt: kvm: allow gicv3 by default if v2 cannot work
-Richard Henderson (7):
+Guenter Roeck (2):
-      target/arm: Implement FMOV (general) for fp16
+      hw/arm/fsl-imx25: Wire up eSDHC controllers
-      target/arm: Early exit after unallocated_encoding in disas_fp_int_conv
+      hw/arm/fsl-imx25: Wire up USB controllers
       target/arm: Implement FCVT (scalar, integer) for fp16
       target/arm: Implement FCVT (scalar, fixed-point) for fp16
       target/arm: Introduce and use read_fp_hreg
       target/arm: Implement FP data-processing (2 source) for fp16
       target/arm: Implement FP data-processing (3 source) for fp16
- include/qemu/log.h         |   1 +
+Igor Mammedov (1):
- target/arm/helper-a64.h    |   2 +
+      hw/arm/cubieboard: make sure SOC object isn't leaked
  target/arm/helper.h        |   6 +
  accel/tcg/cpu-exec.c       |   9 +-
  fpu/softfloat.c            |   6 +-
  hw/sd/sd.c                 |   2 +-
  target/arm/cpu.c           |   2 +
  target/arm/helper-a64.c    |  10 ++
  target/arm/helper.c        |  38 +++-
  target/arm/translate-a64.c | 421 ++++++++++++++++++++++++++++++++++++++-------
  util/log.c                 |   2 +
 files changed, 428 insertions(+), 71 deletions(-)
+Niek Linnenbank (13):
+      hw/arm: add Allwinner H3 System-on-Chip
+      hw/arm: add Xunlong Orange Pi PC machine
+      hw/arm/allwinner-h3: add Clock Control Unit
+      hw/arm/allwinner-h3: add USB host controller
+      hw/arm/allwinner-h3: add System Control module
+      hw/arm/allwinner: add CPU Configuration module
+      hw/arm/allwinner: add Security Identifier device
+      hw/arm/allwinner: add SD/MMC host controller
+      hw/arm/allwinner-h3: add EMAC ethernet device
+      hw/arm/allwinner-h3: add Boot ROM support
+      hw/arm/allwinner-h3: add SDRAM controller device
+      hw/arm/allwinner: add RTC device support
+      docs: add Orange Pi PC document
+Peter Maydell (4):
+      hw/intc/armv7m_nvic: Rebuild hflags on reset
+      target/arm: Update hflags in trans_CPS_v7m()
+      target/arm: Recalculate hflags correctly after writes to CONTROL
+      target/arm: Fix some comment typos
+Philippe Mathieu-Daudé (5):
+      tests/boot_linux_console: Add a quick test for the OrangePi PC board
+      tests/boot_linux_console: Add initrd test for the Orange Pi PC board
+      tests/boot_linux_console: Add a SD card test for the OrangePi PC board
+      tests/boot_linux_console: Add a SLOW test booting Ubuntu on OrangePi PC
+      tests/boot_linux_console: Test booting NetBSD via U-Boot on OrangePi PC
+Richard Henderson (2):
+      target/arm: Check addresses for disabled regimes
+      target/arm: Disable clean_data_tbi for system mode
+ Makefile.objs                          |   1 +
+ hw/arm/Makefile.objs                   |   1 +
+ hw/misc/Makefile.objs                  |   5 +
+ hw/net/Makefile.objs                   |   1 +
+ hw/rtc/Makefile.objs                   |   1 +
+ hw/sd/Makefile.objs                    |   1 +
+ hw/usb/hcd-ehci.h                      |   1 +
+ include/hw/arm/allwinner-a10.h         |   4 +
+ include/hw/arm/allwinner-h3.h          | 161 ++++++
+ include/hw/arm/fsl-imx25.h             |  18 +
+ include/hw/arm/virt.h                  |  12 +-
+ include/hw/misc/allwinner-cpucfg.h     |  52 ++
+ include/hw/misc/allwinner-h3-ccu.h     |  66 +++
+ include/hw/misc/allwinner-h3-dramc.h   | 106 ++++
+ include/hw/misc/allwinner-h3-sysctrl.h |  67 +++
+ include/hw/misc/allwinner-sid.h        |  60 +++
+ include/hw/net/allwinner-sun8i-emac.h  |  99 ++++
+ include/hw/rtc/allwinner-rtc.h         | 134 +++++
+ include/hw/sd/allwinner-sdhost.h       | 135 +++++
+ target/arm/helper.h                    |   1 +
+ target/arm/kvm_arm.h                   |   3 +
+ hw/arm/allwinner-a10.c                 |  19 +
+ hw/arm/allwinner-h3.c                  | 465 ++++++++++++++++++
+ hw/arm/cubieboard.c                    |  18 +
+ hw/arm/fsl-imx25.c                     |  56 +++
+ hw/arm/imx25_pdk.c                     |  16 +
+ hw/arm/orangepi.c                      | 130 +++++
+ hw/arm/virt.c                          | 145 ++++--
+ hw/intc/armv7m_nvic.c                  |   6 +
+ hw/misc/allwinner-cpucfg.c             | 282 +++++++++++
+ hw/misc/allwinner-h3-ccu.c             | 242 +++++++++
+ hw/misc/allwinner-h3-dramc.c           | 358 ++++++++++++++
+ hw/misc/allwinner-h3-sysctrl.c         | 140 ++++++
+ hw/misc/allwinner-sid.c                | 168 +++++++
+ hw/net/allwinner-sun8i-emac.c          | 871 +++++++++++++++++++++++++++++++++
+ hw/rtc/allwinner-rtc.c                 | 411 ++++++++++++++++
+ hw/sd/allwinner-sdhost.c               | 854 ++++++++++++++++++++++++++++++++
+ hw/ssi/aspeed_smc.c                    |  56 ++-
+ hw/usb/hcd-ehci-sysbus.c               |  17 +
+ target/arm/helper.c                    |  49 +-
+ target/arm/kvm.c                       |  14 +-
+ target/arm/kvm32.c                     |  15 +-
+ target/arm/kvm64.c                     |  15 +-
+ target/arm/translate-a64.c             |  11 +
+ target/arm/translate.c                 |  14 +-
+ MAINTAINERS                            |   9 +
+ default-configs/arm-softmmu.mak        |   1 +
+ docs/system/arm/orangepi.rst           | 253 ++++++++++
+ docs/system/target-arm.rst             |   2 +
+ hw/arm/Kconfig                         |  12 +
+ hw/misc/trace-events                   |  19 +
+ hw/net/Kconfig                         |   3 +
+ hw/net/trace-events                    |  10 +
+ hw/rtc/trace-events                    |   4 +
+ hw/sd/trace-events                     |   7 +
+ hw/ssi/trace-events                    |  10 +
+ tests/acceptance/boot_linux_console.py | 230 +++++++++
+files changed, 5787 insertions(+), 74 deletions(-)
+ create mode 100644 include/hw/arm/allwinner-h3.h
+ create mode 100644 include/hw/misc/allwinner-cpucfg.h
+ create mode 100644 include/hw/misc/allwinner-h3-ccu.h
+ create mode 100644 include/hw/misc/allwinner-h3-dramc.h
+ create mode 100644 include/hw/misc/allwinner-h3-sysctrl.h
+ create mode 100644 include/hw/misc/allwinner-sid.h
+ create mode 100644 include/hw/net/allwinner-sun8i-emac.h
+ create mode 100644 include/hw/rtc/allwinner-rtc.h
+ create mode 100644 include/hw/sd/allwinner-sdhost.h
+ create mode 100644 hw/arm/allwinner-h3.c
+ create mode 100644 hw/arm/orangepi.c
+ create mode 100644 hw/misc/allwinner-cpucfg.c
+ create mode 100644 hw/misc/allwinner-h3-ccu.c
+ create mode 100644 hw/misc/allwinner-h3-dramc.c
+ create mode 100644 hw/misc/allwinner-h3-sysctrl.c
+ create mode 100644 hw/misc/allwinner-sid.c
+ create mode 100644 hw/net/allwinner-sun8i-emac.c
+ create mode 100644 hw/rtc/allwinner-rtc.c
+ create mode 100644 hw/sd/allwinner-sdhost.c
+ create mode 100644 docs/system/arm/orangepi.rst
+ create mode 100644 hw/ssi/trace-events

-New patch
+[PULL 01/36] hw/intc/armv7m_nvic: Rebuild hflags on reset
+Some of an M-profile CPU's cached hflags state depends on state that's
+in our NVIC object. We already do an hflags rebuild when the NVIC
+registers are written, but we also need to do this on NVIC reset,
+because there's no guarantee that this will happen before the
+CPU reset.
+This fixes an assertion due to mismatched hflags which happens if
+the CPU is reset from inside a HardFault handler.
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
+Message-id: 20200303174950.3298-2-peter.maydell@linaro.org
+---
+ hw/intc/armv7m_nvic.c | 6 ++++++
+file changed, 6 insertions(+)
+diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/intc/armv7m_nvic.c
++++ b/hw/intc/armv7m_nvic.c
+@@ -XXX,XX +XXX,XX @@ static void armv7m_nvic_reset(DeviceState *dev)
+             s->itns[i] = true;
+         }
+     }
++
++    /*
++     * We updated state that affects the CPU's MMUidx and thus its hflags;
++     * and we can't guarantee that we run before the CPU reset function.
++     */
++    arm_rebuild_hflags(&s->cpu->env);
+ }
+ static void nvic_systick_trigger(void *opaque, int n, int level)
+--
+.20.1

-New patch
+[PULL 02/36] target/arm: Update hflags in trans_CPS_v7m()
+For M-profile CPUs, the FAULTMASK value affects the CPU's MMU index
+(it changes the NegPri bit). We update the hflags after calls
+to the v7m_msr helper in trans_MSR_v7m() but forgot to do so
+in trans_CPS_v7m().
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
+Message-id: 20200303174950.3298-3-peter.maydell@linaro.org
+---
+ target/arm/translate.c | 5 ++++-
+file changed, 4 insertions(+), 1 deletion(-)
+diff --git a/target/arm/translate.c b/target/arm/translate.c
+index XXXXXXX..XXXXXXX 100644
+--- a/target/arm/translate.c
++++ b/target/arm/translate.c
+@@ -XXX,XX +XXX,XX @@ static bool trans_CPS(DisasContext *s, arg_CPS *a)
+ static bool trans_CPS_v7m(DisasContext *s, arg_CPS_v7m *a)
+ {
+-    TCGv_i32 tmp, addr;
++    TCGv_i32 tmp, addr, el;
+     if (!arm_dc_feature(s, ARM_FEATURE_M)) {
+         return false;
+@@ -XXX,XX +XXX,XX @@ static bool trans_CPS_v7m(DisasContext *s, arg_CPS_v7m *a)
+         gen_helper_v7m_msr(cpu_env, addr, tmp);
+         tcg_temp_free_i32(addr);
+     }
++    el = tcg_const_i32(s->current_el);
++    gen_helper_rebuild_hflags_m32(cpu_env, el);
++    tcg_temp_free_i32(el);
+     tcg_temp_free_i32(tmp);
+     gen_lookup_tb(s);
+     return true;
+--
+.20.1

-[Qemu-devel] [PULL 06/16] target/arm: Implement FCVT (scalar, integer) for fp16
+[PULL 03/36] target/arm: Recalculate hflags correctly after writes to CONTROL
-From: Richard Henderson <richard.henderson@linaro.org>
+A write to the CONTROL register can change our current EL (by
 writing to the nPRIV bit). That means that we can't assume
 that s->current_el is still valid in trans_MSR_v7m() when
 we try to rebuild the hflags.
-Cc: qemu-stable@nongnu.org
+Add a new helper rebuild_hflags_m32_newel() which, like the
-Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+existing rebuild_hflags_a32_newel(), recalculates the current
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+EL from scratch, and use it in trans_MSR_v7m().
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
-Message-id: 20180512003217.9105-4-richard.henderson@linaro.org
+This fixes an assertion about an hflags mismatch when the
 guest changes privilege by writing to CONTROL.
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
+Message-id: 20200303174950.3298-4-peter.maydell@linaro.org
 ---
- target/arm/helper.h        |  6 +++
+ target/arm/helper.h    |  1 +
- target/arm/helper.c        | 38 ++++++++++++++-
+ target/arm/helper.c    | 12 ++++++++++++
- target/arm/translate-a64.c | 96 +++++++++++++++++++++++++++++++-------
+ target/arm/translate.c |  7 +++----
-files changed, 122 insertions(+), 18 deletions(-)
+files changed, 16 insertions(+), 4 deletions(-)
 diff --git a/target/arm/helper.h b/target/arm/helper.h
 index XXXXXXX..XXXXXXX 100644
 --- a/target/arm/helper.h
 +++ b/target/arm/helper.h
-@@ -XXX,XX +XXX,XX @@ DEF_HELPER_3(vfp_touhd_round_to_zero, i64, f64, i32, ptr)
+@@ -XXX,XX +XXX,XX @@ DEF_HELPER_4(msr_banked, void, env, i32, i32, i32)
- DEF_HELPER_3(vfp_tould_round_to_zero, i64, f64, i32, ptr)
+ DEF_HELPER_2(get_user_reg, i32, env, i32)
- DEF_HELPER_3(vfp_touhh, i32, f16, i32, ptr)
+ DEF_HELPER_3(set_user_reg, void, env, i32, i32)
- DEF_HELPER_3(vfp_toshh, i32, f16, i32, ptr)
-+DEF_HELPER_3(vfp_toulh, i32, f16, i32, ptr)
++DEF_HELPER_FLAGS_1(rebuild_hflags_m32_newel, TCG_CALL_NO_RWG, void, env)
-+DEF_HELPER_3(vfp_toslh, i32, f16, i32, ptr)
+ DEF_HELPER_FLAGS_2(rebuild_hflags_m32, TCG_CALL_NO_RWG, void, env, int)
-+DEF_HELPER_3(vfp_touqh, i64, f16, i32, ptr)
+ DEF_HELPER_FLAGS_1(rebuild_hflags_a32_newel, TCG_CALL_NO_RWG, void, env)
-+DEF_HELPER_3(vfp_tosqh, i64, f16, i32, ptr)
+ DEF_HELPER_FLAGS_2(rebuild_hflags_a32, TCG_CALL_NO_RWG, void, env, int)
  DEF_HELPER_3(vfp_toshs, i32, f32, i32, ptr)
  DEF_HELPER_3(vfp_tosls, i32, f32, i32, ptr)
  DEF_HELPER_3(vfp_tosqs, i64, f32, i32, ptr)
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_3(vfp_ultod, f64, i64, i32, ptr)
  DEF_HELPER_3(vfp_uqtod, f64, i64, i32, ptr)
  DEF_HELPER_3(vfp_sltoh, f16, i32, i32, ptr)
  DEF_HELPER_3(vfp_ultoh, f16, i32, i32, ptr)
 +DEF_HELPER_3(vfp_sqtoh, f16, i64, i32, ptr)
 +DEF_HELPER_3(vfp_uqtoh, f16, i64, i32, ptr)
  DEF_HELPER_FLAGS_2(set_rmode, TCG_CALL_NO_RWG, i32, i32, ptr)
  DEF_HELPER_FLAGS_2(set_neon_rmode, TCG_CALL_NO_RWG, i32, i32, env)
 diff --git a/target/arm/helper.c b/target/arm/helper.c
 index XXXXXXX..XXXXXXX 100644
 --- a/target/arm/helper.c
 +++ b/target/arm/helper.c
-@@ -XXX,XX +XXX,XX @@ VFP_CONV_FIX_A64(uq, s, 32, 64, uint64)
+@@ -XXX,XX +XXX,XX @@ void arm_rebuild_hflags(CPUARMState *env)
- #undef VFP_CONV_FIX_A64
+     env->hflags = rebuild_hflags_internal(env);
  /* Conversion to/from f16 can overflow to infinity before/after scaling.
 - * Therefore we convert to f64 (which does not round), scale,
 - * and then convert f64 to f16 (which may round).
 + * Therefore we convert to f64, scale, and then convert f64 to f16; or
 + * vice versa for conversion to integer.
 + *
 + * For 16- and 32-bit integers, the conversion to f64 never rounds.
 + * For 64-bit integers, any integer that would cause rounding will also
 + * overflow to f16 infinity, so there is no double rounding problem.
   */
  static float16 do_postscale_fp16(float64 f, int shift, float_status *fpst)
@@ -XXX,XX +XXX,XX @@ float16 HELPER(vfp_ultoh)(uint32_t x, uint32_t shift, void *fpst)
      return do_postscale_fp16(uint32_to_float64(x, fpst), shift, fpst);
  }
-+float16 HELPER(vfp_sqtoh)(uint64_t x, uint32_t shift, void *fpst)
++/*
 + * If we have triggered a EL state change we can't rely on the
 + * translator having passed it to us, we need to recompute.
 + */
 +void HELPER(rebuild_hflags_m32_newel)(CPUARMState *env)
 +{
-+    return do_postscale_fp16(int64_to_float64(x, fpst), shift, fpst);
++    int el = arm_current_el(env);
 +    int fp_el = fp_exception_el(env, el);
 +    ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el);
 +    env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx);
 +}
 +
-+float16 HELPER(vfp_uqtoh)(uint64_t x, uint32_t shift, void *fpst)
+ void HELPER(rebuild_hflags_m32)(CPUARMState *env, int el)
 +{
 +    return do_postscale_fp16(uint64_to_float64(x, fpst), shift, fpst);
 +}
 +
  static float64 do_prescale_fp16(float16 f, int shift, float_status *fpst)
  {
-     if (unlikely(float16_is_any_nan(f))) {
+     int fp_el = fp_exception_el(env, el);
-@@ -XXX,XX +XXX,XX @@ uint32_t HELPER(vfp_touhh)(float16 x, uint32_t shift, void *fpst)
+diff --git a/target/arm/translate.c b/target/arm/translate.c
-     return float64_to_uint16(do_prescale_fp16(x, shift, fpst), fpst);
+index XXXXXXX..XXXXXXX 100644
 --- a/target/arm/translate.c
 +++ b/target/arm/translate.c
@@ -XXX,XX +XXX,XX @@ static bool trans_MRS_v7m(DisasContext *s, arg_MRS_v7m *a)
  static bool trans_MSR_v7m(DisasContext *s, arg_MSR_v7m *a)
  {
 -    TCGv_i32 addr, reg, el;
 +    TCGv_i32 addr, reg;
      if (!arm_dc_feature(s, ARM_FEATURE_M)) {
          return false;
@@ -XXX,XX +XXX,XX @@ static bool trans_MSR_v7m(DisasContext *s, arg_MSR_v7m *a)
      gen_helper_v7m_msr(cpu_env, addr, reg);
      tcg_temp_free_i32(addr);
      tcg_temp_free_i32(reg);
 -    el = tcg_const_i32(s->current_el);
 -    gen_helper_rebuild_hflags_m32(cpu_env, el);
 -    tcg_temp_free_i32(el);
 +    /* If we wrote to CONTROL, the EL might have changed */
 +    gen_helper_rebuild_hflags_m32_newel(cpu_env);
      gen_lookup_tb(s);
      return true;
  }
-+uint32_t HELPER(vfp_toslh)(float16 x, uint32_t shift, void *fpst)
-+{
-+    return float64_to_int32(do_prescale_fp16(x, shift, fpst), fpst);
-+}
-+
-+uint32_t HELPER(vfp_toulh)(float16 x, uint32_t shift, void *fpst)
-+{
-+    return float64_to_uint32(do_prescale_fp16(x, shift, fpst), fpst);
-+}
-+
-+uint64_t HELPER(vfp_tosqh)(float16 x, uint32_t shift, void *fpst)
-+{
-+    return float64_to_int64(do_prescale_fp16(x, shift, fpst), fpst);
-+}
-+
-+uint64_t HELPER(vfp_touqh)(float16 x, uint32_t shift, void *fpst)
-+{
-+    return float64_to_uint64(do_prescale_fp16(x, shift, fpst), fpst);
-+}
-+
- /* Set the current fp rounding mode and return the old one.
-  * The argument is a softfloat float_round_ value.
-  */
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
-index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
-+++ b/target/arm/translate-a64.c
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-                            bool itof, int rmode, int scale, int sf, int type)
- {
-     bool is_signed = !(opcode & 1);
--    bool is_double = type;
-     TCGv_ptr tcg_fpstatus;
--    TCGv_i32 tcg_shift;
-+    TCGv_i32 tcg_shift, tcg_single;
-+    TCGv_i64 tcg_double;
--    tcg_fpstatus = get_fpstatus_ptr(false);
-+    tcg_fpstatus = get_fpstatus_ptr(type == 3);
-     tcg_shift = tcg_const_i32(64 - scale);
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-             tcg_int = tcg_extend;
-         }
--        if (is_double) {
--            TCGv_i64 tcg_double = tcg_temp_new_i64();
-+        switch (type) {
-+        case 1: /* float64 */
-+            tcg_double = tcg_temp_new_i64();
-             if (is_signed) {
-                 gen_helper_vfp_sqtod(tcg_double, tcg_int,
-                                      tcg_shift, tcg_fpstatus);
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-             }
-             write_fp_dreg(s, rd, tcg_double);
-             tcg_temp_free_i64(tcg_double);
--        } else {
--            TCGv_i32 tcg_single = tcg_temp_new_i32();
-+            break;
-+
-+        case 0: /* float32 */
-+            tcg_single = tcg_temp_new_i32();
-             if (is_signed) {
-                 gen_helper_vfp_sqtos(tcg_single, tcg_int,
-                                      tcg_shift, tcg_fpstatus);
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-             }
-             write_fp_sreg(s, rd, tcg_single);
-             tcg_temp_free_i32(tcg_single);
-+            break;
-+
-+        case 3: /* float16 */
-+            tcg_single = tcg_temp_new_i32();
-+            if (is_signed) {
-+                gen_helper_vfp_sqtoh(tcg_single, tcg_int,
-+                                     tcg_shift, tcg_fpstatus);
-+            } else {
-+                gen_helper_vfp_uqtoh(tcg_single, tcg_int,
-+                                     tcg_shift, tcg_fpstatus);
-+            }
-+            write_fp_sreg(s, rd, tcg_single);
-+            tcg_temp_free_i32(tcg_single);
-+            break;
-+
-+        default:
-+            g_assert_not_reached();
-         }
-     } else {
-         TCGv_i64 tcg_int = cpu_reg(s, rd);
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-         gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
--        if (is_double) {
--            TCGv_i64 tcg_double = read_fp_dreg(s, rn);
-+        switch (type) {
-+        case 1: /* float64 */
-+            tcg_double = read_fp_dreg(s, rn);
-             if (is_signed) {
-                 if (!sf) {
-                     gen_helper_vfp_tosld(tcg_int, tcg_double,
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-                                          tcg_shift, tcg_fpstatus);
-                 }
-             }
-+            if (!sf) {
-+                tcg_gen_ext32u_i64(tcg_int, tcg_int);
-+            }
-             tcg_temp_free_i64(tcg_double);
--        } else {
--            TCGv_i32 tcg_single = read_fp_sreg(s, rn);
-+            break;
-+
-+        case 0: /* float32 */
-+            tcg_single = read_fp_sreg(s, rn);
-             if (sf) {
-                 if (is_signed) {
-                     gen_helper_vfp_tosqs(tcg_int, tcg_single,
-@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
-                 tcg_temp_free_i32(tcg_dest);
-             }
-             tcg_temp_free_i32(tcg_single);
-+            break;
-+
-+        case 3: /* float16 */
-+            tcg_single = read_fp_sreg(s, rn);
-+            if (sf) {
-+                if (is_signed) {
-+                    gen_helper_vfp_tosqh(tcg_int, tcg_single,
-+                                         tcg_shift, tcg_fpstatus);
-+                } else {
-+                    gen_helper_vfp_touqh(tcg_int, tcg_single,
-+                                         tcg_shift, tcg_fpstatus);
-+                }
-+            } else {
-+                TCGv_i32 tcg_dest = tcg_temp_new_i32();
-+                if (is_signed) {
-+                    gen_helper_vfp_toslh(tcg_dest, tcg_single,
-+                                         tcg_shift, tcg_fpstatus);
-+                } else {
-+                    gen_helper_vfp_toulh(tcg_dest, tcg_single,
-+                                         tcg_shift, tcg_fpstatus);
-+                }
-+                tcg_gen_extu_i32_i64(tcg_int, tcg_dest);
-+                tcg_temp_free_i32(tcg_dest);
-+            }
-+            tcg_temp_free_i32(tcg_single);
-+            break;
-+
-+        default:
-+            g_assert_not_reached();
-         }
-         gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
-         tcg_temp_free_i32(tcg_rmode);
--
--        if (!sf) {
--            tcg_gen_ext32u_i64(tcg_int, tcg_int);
--        }
-     }
-     tcg_temp_free_ptr(tcg_fpstatus);
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
-         /* actual FP conversions */
-         bool itof = extract32(opcode, 1, 1);
--        if (type > 1 || (rmode != 0 && opcode > 1)) {
-+        if (rmode != 0 && opcode > 1) {
-+            unallocated_encoding(s);
-+            return;
-+        }
-+        switch (type) {
-+        case 0: /* float32 */
-+        case 1: /* float64 */
-+            break;
-+        case 3: /* float16 */
-+            if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
-+                break;
-+            }
-+            /* fallthru */
-+        default:
-             unallocated_encoding(s);
-             return;
-         }
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 16/16] tcg: Optionally log FPU state in TCG -d cpu logging
+[PULL 04/36] target/arm: Fix some comment typos
-Usually the logging of the CPU state produced by -d cpu is sufficient
+Fix a couple of comment typos.
 to diagnose problems, but sometimes you want to see the state of
 the floating point registers as well. We don't want to enable that
 by default as it adds a lot of extra data to the log; instead,
 allow it to be optionally enabled via -d fpu.
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
-Message-id: 20180510130024.31678-1-peter.maydell@linaro.org
+Message-id: 20200303174950.3298-5-peter.maydell@linaro.org
 ---
- include/qemu/log.h   | 1 +
+ target/arm/helper.c    | 2 +-
- accel/tcg/cpu-exec.c | 9 ++++++---
+ target/arm/translate.c | 2 +-
- util/log.c           | 2 ++
+files changed, 2 insertions(+), 2 deletions(-)
 files changed, 9 insertions(+), 3 deletions(-)
-diff --git a/include/qemu/log.h b/include/qemu/log.h
+diff --git a/target/arm/helper.c b/target/arm/helper.c
 index XXXXXXX..XXXXXXX 100644
---- a/include/qemu/log.h
+--- a/target/arm/helper.c
-+++ b/include/qemu/log.h
++++ b/target/arm/helper.c
-@@ -XXX,XX +XXX,XX @@ static inline bool qemu_log_separate(void)
+@@ -XXX,XX +XXX,XX @@ void HELPER(rebuild_hflags_m32)(CPUARMState *env, int el)
- #define CPU_LOG_PAGE       (1 << 14)
- /* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
+ /*
- #define CPU_LOG_TB_OP_IND  (1 << 16)
+  * If we have triggered a EL state change we can't rely on the
-+#define CPU_LOG_TB_FPU     (1 << 17)
+- * translator having passed it too us, we need to recompute.
++ * translator having passed it to us, we need to recompute.
- /* Lock output for a series of related logs.  Since this is not needed
+  */
-  * for a single qemu_log / qemu_log_mask / qemu_log_mask_and_addr, we
+ void HELPER(rebuild_hflags_a32_newel)(CPUARMState *env)
-diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
+ {
 diff --git a/target/arm/translate.c b/target/arm/translate.c
 index XXXXXXX..XXXXXXX 100644
---- a/accel/tcg/cpu-exec.c
+--- a/target/arm/translate.c
-+++ b/accel/tcg/cpu-exec.c
++++ b/target/arm/translate.c
-@@ -XXX,XX +XXX,XX @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb)
+@@ -XXX,XX +XXX,XX @@ static int disas_coproc_insn(DisasContext *s, uint32_t insn)
-     if (qemu_loglevel_mask(CPU_LOG_TB_CPU)
-         && qemu_log_in_addr_range(itb->pc)) {
+         if (!isread && !(ri->type & ARM_CP_SUPPRESS_TB_END)) {
-         qemu_log_lock();
+             /*
-+        int flags = 0;
+-             * A write to any coprocessor regiser that ends a TB
-+        if (qemu_loglevel_mask(CPU_LOG_TB_FPU)) {
++             * A write to any coprocessor register that ends a TB
-+            flags |= CPU_DUMP_FPU;
+              * must rebuild the hflags for the next TB.
-+        }
+              */
- #if defined(TARGET_I386)
+             TCGv_i32 tcg_el = tcg_const_i32(s->current_el);
 -        log_cpu_state(cpu, CPU_DUMP_CCOP);
 -#else
 -        log_cpu_state(cpu, 0);
 +        flags |= CPU_DUMP_CCOP;
  #endif
 +        log_cpu_state(cpu, flags);
          qemu_log_unlock();
      }
  #endif /* DEBUG_DISAS */
 diff --git a/util/log.c b/util/log.c
 index XXXXXXX..XXXXXXX 100644
 --- a/util/log.c
 +++ b/util/log.c
@@ -XXX,XX +XXX,XX @@ const QEMULogItem qemu_log_items[] = {
        "show trace before each executed TB (lots of logs)" },
      { CPU_LOG_TB_CPU, "cpu",
        "show CPU registers before entering a TB (lots of logs)" },
 +    { CPU_LOG_TB_FPU, "fpu",
 +      "include FPU registers in the 'cpu' logging" },
      { CPU_LOG_MMU, "mmu",
        "log MMU-related activities" },
      { CPU_LOG_PCALL, "pcall",
 --
-.17.0
+.20.1

-New patch
+[PULL 05/36] aspeed/smc: Add some tracing
+From: Cédric Le Goater <clg@kaod.org>
+Signed-off-by: Cédric Le Goater <clg@kaod.org>
+Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
+Reviewed-by: Joel Stanley <joel@jms.id.au>
+Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Message-id: 20200206112645.21275-2-clg@kaod.org
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ Makefile.objs       |  1 +
+ hw/ssi/aspeed_smc.c | 17 +++++++++++++++++
+ hw/ssi/trace-events |  9 +++++++++
+files changed, 27 insertions(+)
+ create mode 100644 hw/ssi/trace-events
+diff --git a/Makefile.objs b/Makefile.objs
+index XXXXXXX..XXXXXXX 100644
+--- a/Makefile.objs
++++ b/Makefile.objs
+@@ -XXX,XX +XXX,XX @@ trace-events-subdirs += hw/scsi
+ trace-events-subdirs += hw/sd
+ trace-events-subdirs += hw/sparc
+ trace-events-subdirs += hw/sparc64
++trace-events-subdirs += hw/ssi
+ trace-events-subdirs += hw/timer
+ trace-events-subdirs += hw/tpm
+ trace-events-subdirs += hw/usb
+diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/ssi/aspeed_smc.c
++++ b/hw/ssi/aspeed_smc.c
+@@ -XXX,XX +XXX,XX @@
+ #include "qapi/error.h"
+ #include "exec/address-spaces.h"
+ #include "qemu/units.h"
++#include "trace.h"
+ #include "hw/irq.h"
+ #include "hw/qdev-properties.h"
+@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_flash_set_segment(AspeedSMCState *s, int cs,
+     s->ctrl->reg_to_segment(s, new, &seg);
++    trace_aspeed_smc_flash_set_segment(cs, new, seg.addr, seg.addr + seg.size);
++
+     /* The start address of CS0 is read-only */
+     if (cs == 0 && seg.addr != s->ctrl->flash_window_base) {
+         qemu_log_mask(LOG_GUEST_ERROR,
+@@ -XXX,XX +XXX,XX @@ static uint64_t aspeed_smc_flash_read(void *opaque, hwaddr addr, unsigned size)
+                       __func__, aspeed_smc_flash_mode(fl));
+     }
++    trace_aspeed_smc_flash_read(fl->id, addr, size, ret,
++                                aspeed_smc_flash_mode(fl));
+     return ret;
+ }
+@@ -XXX,XX +XXX,XX @@ static bool aspeed_smc_do_snoop(AspeedSMCFlash *fl,  uint64_t data,
+     AspeedSMCState *s = fl->controller;
+     uint8_t addr_width = aspeed_smc_flash_is_4byte(fl) ? 4 : 3;
++    trace_aspeed_smc_do_snoop(fl->id, s->snoop_index, s->snoop_dummies,
++                              (uint8_t) data & 0xff);
++
+     if (s->snoop_index == SNOOP_OFF) {
+         return false; /* Do nothing */
+@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_flash_write(void *opaque, hwaddr addr, uint64_t data,
+     AspeedSMCState *s = fl->controller;
+     int i;
++    trace_aspeed_smc_flash_write(fl->id, addr, size, data,
++                                 aspeed_smc_flash_mode(fl));
++
+     if (!aspeed_smc_is_writable(fl)) {
+         qemu_log_mask(LOG_GUEST_ERROR, "%s: flash is not writable at 0x%"
+                       HWADDR_PRIx "\n", __func__, addr);
+@@ -XXX,XX +XXX,XX @@ static uint64_t aspeed_smc_read(void *opaque, hwaddr addr, unsigned int size)
+         (s->ctrl->has_dma && addr == R_DMA_CHECKSUM) ||
+         (addr >= R_SEG_ADDR0 && addr < R_SEG_ADDR0 + s->ctrl->max_slaves) ||
+         (addr >= s->r_ctrl0 && addr < s->r_ctrl0 + s->ctrl->max_slaves)) {
++
++        trace_aspeed_smc_read(addr, size, s->regs[addr]);
++
+         return s->regs[addr];
+     } else {
+         qemu_log_mask(LOG_UNIMP, "%s: not implemented: 0x%" HWADDR_PRIx "\n",
+@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_dma_checksum(AspeedSMCState *s)
+                           __func__, s->regs[R_DMA_FLASH_ADDR]);
+             return;
+         }
++        trace_aspeed_smc_dma_checksum(s->regs[R_DMA_FLASH_ADDR], data);
+         /*
+          * When the DMA is on-going, the DMA registers are updated
+@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data,
+     addr >>= 2;
++    trace_aspeed_smc_write(addr, size, data);
++
+     if (addr == s->r_conf ||
+         (addr >= s->r_timings &&
+          addr < s->r_timings + s->ctrl->nregs_timings) ||
+diff --git a/hw/ssi/trace-events b/hw/ssi/trace-events
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/hw/ssi/trace-events
+@@ -XXX,XX +XXX,XX @@
++# aspeed_smc.c
++
++aspeed_smc_flash_set_segment(int cs, uint64_t reg, uint64_t start, uint64_t end) "CS%d segreg=0x%"PRIx64" [ 0x%"PRIx64" - 0x%"PRIx64" ]"
++aspeed_smc_flash_read(int cs, uint64_t addr,  uint32_t size, uint64_t data, int mode) "CS%d @0x%" PRIx64 " size %u: 0x%" PRIx64" mode:%d"
++aspeed_smc_do_snoop(int cs, int index, int dummies, int data) "CS%d index:0x%x dummies:%d data:0x%x"
++aspeed_smc_flash_write(int cs, uint64_t addr,  uint32_t size, uint64_t data, int mode) "CS%d @0x%" PRIx64 " size %u: 0x%" PRIx64" mode:%d"
++aspeed_smc_read(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
++aspeed_smc_dma_checksum(uint32_t addr, uint32_t data) "0x%08x: 0x%08x"
++aspeed_smc_write(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
+--
+.20.1

-New patch
+[PULL 06/36] aspeed/smc: Fix User mode select/unselect scheme
+From: Cédric Le Goater <clg@kaod.org>
+The Aspeed SMC Controller can operate in different modes : Read, Fast
+Read, Write and User modes. When the User mode is configured, it
+selects automatically the SPI slave device until the CE_STOP_ACTIVE
+bit is set to 1. When any other modes are configured the device is
+unselected. The HW logic handles the chip select automatically when
+the flash is accessed through its AHB window.
+When configuring the CEx Control Register, the User mode logic to
+select and unselect the slave is incorrect and data corruption can be
+seen on machines using two chips, witherspoon and romulus.
+Rework the handler setting the CEx Control Register to fix this issue.
+Fixes: 7c1c69bca43c ("ast2400: add SMC controllers (FMC and SPI)")
+Signed-off-by: Cédric Le Goater <clg@kaod.org>
+Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
+Message-id: 20200206112645.21275-3-clg@kaod.org
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ hw/ssi/aspeed_smc.c | 39 +++++++++++++++++++++++----------------
+ hw/ssi/trace-events |  1 +
+files changed, 24 insertions(+), 16 deletions(-)
+diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/ssi/aspeed_smc.c
++++ b/hw/ssi/aspeed_smc.c
+@@ -XXX,XX +XXX,XX @@ static inline int aspeed_smc_flash_is_4byte(const AspeedSMCFlash *fl)
+     }
+ }
+-static inline bool aspeed_smc_is_ce_stop_active(const AspeedSMCFlash *fl)
++static void aspeed_smc_flash_do_select(AspeedSMCFlash *fl, bool unselect)
+ {
+-    const AspeedSMCState *s = fl->controller;
++    AspeedSMCState *s = fl->controller;
+-    return s->regs[s->r_ctrl0 + fl->id] & CTRL_CE_STOP_ACTIVE;
++    trace_aspeed_smc_flash_select(fl->id, unselect ? "un" : "");
++
++    qemu_set_irq(s->cs_lines[fl->id], unselect);
+ }
+ static void aspeed_smc_flash_select(AspeedSMCFlash *fl)
+ {
+-    AspeedSMCState *s = fl->controller;
+-
+-    s->regs[s->r_ctrl0 + fl->id] &= ~CTRL_CE_STOP_ACTIVE;
+-    qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl));
++    aspeed_smc_flash_do_select(fl, false);
+ }
+ static void aspeed_smc_flash_unselect(AspeedSMCFlash *fl)
+ {
+-    AspeedSMCState *s = fl->controller;
+-
+-    s->regs[s->r_ctrl0 + fl->id] |= CTRL_CE_STOP_ACTIVE;
+-    qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl));
++    aspeed_smc_flash_do_select(fl, true);
+ }
+ static uint32_t aspeed_smc_check_segment_addr(const AspeedSMCFlash *fl,
+@@ -XXX,XX +XXX,XX @@ static const MemoryRegionOps aspeed_smc_flash_ops = {
+     },
+ };
+-static void aspeed_smc_flash_update_cs(AspeedSMCFlash *fl)
++static void aspeed_smc_flash_update_ctrl(AspeedSMCFlash *fl, uint32_t value)
+ {
+     AspeedSMCState *s = fl->controller;
++    bool unselect;
+-    s->snoop_index = aspeed_smc_is_ce_stop_active(fl) ? SNOOP_OFF : SNOOP_START;
++    /* User mode selects the CS, other modes unselect */
++    unselect = (value & CTRL_CMD_MODE_MASK) != CTRL_USERMODE;
+-    qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl));
++    /* A change of CTRL_CE_STOP_ACTIVE from 0 to 1, unselects the CS */
++    if (!(s->regs[s->r_ctrl0 + fl->id] & CTRL_CE_STOP_ACTIVE) &&
++        value & CTRL_CE_STOP_ACTIVE) {
++        unselect = true;
++    }
++
++    s->regs[s->r_ctrl0 + fl->id] = value;
++
++    s->snoop_index = unselect ? SNOOP_OFF : SNOOP_START;
++
++    aspeed_smc_flash_do_select(fl, unselect);
+ }
+ static void aspeed_smc_reset(DeviceState *d)
+@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data,
+         s->regs[addr] = value;
+     } else if (addr >= s->r_ctrl0 && addr < s->r_ctrl0 + s->num_cs) {
+         int cs = addr - s->r_ctrl0;
+-        s->regs[addr] = value;
+-        aspeed_smc_flash_update_cs(&s->flashes[cs]);
++        aspeed_smc_flash_update_ctrl(&s->flashes[cs], value);
+     } else if (addr >= R_SEG_ADDR0 &&
+                addr < R_SEG_ADDR0 + s->ctrl->max_slaves) {
+         int cs = addr - R_SEG_ADDR0;
+diff --git a/hw/ssi/trace-events b/hw/ssi/trace-events
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/ssi/trace-events
++++ b/hw/ssi/trace-events
+@@ -XXX,XX +XXX,XX @@ aspeed_smc_flash_write(int cs, uint64_t addr,  uint32_t size, uint64_t data, int
+ aspeed_smc_read(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
+ aspeed_smc_dma_checksum(uint32_t addr, uint32_t data) "0x%08x: 0x%08x"
+ aspeed_smc_write(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
++aspeed_smc_flash_select(int cs, const char *prefix) "CS%d %sselect"
+--
+.20.1

-[Qemu-devel] [PULL 05/16] target/arm: Early exit after unallocated_encoding in disas_fp_int_conv
+[PULL 07/36] target/arm: Check addresses for disabled regimes
 From: Richard Henderson <richard.henderson@linaro.org>
-No sense in emitting code after the exception.
+We fail to validate the upper bits of a virtual address on a
 translation disabled regime, as per AArch64.TranslateAddressS1Off.
 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200308012946.16303-2-richard.henderson@linaro.org
 Message-id: 20180512003217.9105-3-richard.henderson@linaro.org
 Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 2 +-
+ target/arm/helper.c | 35 ++++++++++++++++++++++++++++++++++-
-file changed, 1 insertion(+), 1 deletion(-)
+file changed, 34 insertions(+), 1 deletion(-)
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/target/arm/helper.c b/target/arm/helper.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/target/arm/helper.c
-+++ b/target/arm/translate-a64.c
++++ b/target/arm/helper.c
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
+@@ -XXX,XX +XXX,XX @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
-         default:
+     /* Definitely a real MMU, not an MPU */
-             /* all other sf/type/rmode combinations are invalid */
-             unallocated_encoding(s);
+     if (regime_translation_disabled(env, mmu_idx)) {
--            break;
+-        /* MMU disabled. */
-+            return;
++        /*
-         }
++         * MMU disabled.  S1 addresses within aa64 translation regimes are
++         * still checked for bounds -- see AArch64.TranslateAddressS1Off.
-         if (!fp_access_check(s)) {
++         */
 +        if (mmu_idx != ARMMMUIdx_Stage2) {
 +            int r_el = regime_el(env, mmu_idx);
 +            if (arm_el_is_aa64(env, r_el)) {
 +                int pamax = arm_pamax(env_archcpu(env));
 +                uint64_t tcr = env->cp15.tcr_el[r_el].raw_tcr;
 +                int addrtop, tbi;
 +
 +                tbi = aa64_va_parameter_tbi(tcr, mmu_idx);
 +                if (access_type == MMU_INST_FETCH) {
 +                    tbi &= ~aa64_va_parameter_tbid(tcr, mmu_idx);
 +                }
 +                tbi = (tbi >> extract64(address, 55, 1)) & 1;
 +                addrtop = (tbi ? 55 : 63);
 +
 +                if (extract64(address, pamax, addrtop - pamax + 1) != 0) {
 +                    fi->type = ARMFault_AddressSize;
 +                    fi->level = 0;
 +                    fi->stage2 = false;
 +                    return 1;
 +                }
 +
 +                /*
 +                 * When TBI is disabled, we've just validated that all of the
 +                 * bits above PAMax are zero, so logically we only need to
 +                 * clear the top byte for TBI.  But it's clearer to follow
 +                 * the pseudocode set of addrdesc.paddress.
 +                 */
 +                address = extract64(address, 0, 52);
 +            }
 +        }
          *phys_ptr = address;
          *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
          *page_size = TARGET_PAGE_SIZE;
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 04/16] target/arm: Implement FMOV (general) for fp16
+[PULL 08/36] target/arm: Disable clean_data_tbi for system mode
 From: Richard Henderson <richard.henderson@linaro.org>
-Adding the fp16 moves to/from general registers.
+We must include the tag in the FAR_ELx register when raising
 an addressing exception.  Which means that we should not clear
 out the tag during translation.
-Cc: qemu-stable@nongnu.org
+We cannot at present comply with this for user mode, so we
 retain the clean_data_tbi function for the moment, though it
 no longer does what it says on the tin for system mode.  This
 function is to be replaced with MTE, so don't worry about the
 slight misnaming.
 Buglink: https://bugs.launchpad.net/qemu/+bug/1867072
 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200308012946.16303-3-richard.henderson@linaro.org
 Message-id: 20180512003217.9105-2-richard.henderson@linaro.org
 Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 21 +++++++++++++++++++++
+ target/arm/translate-a64.c | 11 +++++++++++
-file changed, 21 insertions(+)
+file changed, 11 insertions(+)
 diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
 index XXXXXXX..XXXXXXX 100644
 --- a/target/arm/translate-a64.c
 +++ b/target/arm/translate-a64.c
-@@ -XXX,XX +XXX,XX @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
+@@ -XXX,XX +XXX,XX @@ static void gen_a64_set_pc(DisasContext *s, TCGv_i64 src)
-             tcg_gen_st_i64(tcg_rn, cpu_env, fp_reg_hi_offset(s, rd));
+ static TCGv_i64 clean_data_tbi(DisasContext *s, TCGv_i64 addr)
-             clear_vec_high(s, true, rd);
+ {
-             break;
+     TCGv_i64 clean = new_tmp_a64(s);
-+        case 3:
++    /*
-+            /* 16 bit */
++     * In order to get the correct value in the FAR_ELx register,
-+            tmp = tcg_temp_new_i64();
++     * we must present the memory subsystem with the "dirty" address
-+            tcg_gen_ext16u_i64(tmp, tcg_rn);
++     * including the TBI.  In system mode we can make this work via
-+            write_fp_dreg(s, rd, tmp);
++     * the TLB, dropping the TBI during translation.  But for user-only
-+            tcg_temp_free_i64(tmp);
++     * mode we don't have that option, and must remove the top byte now.
-+            break;
++     */
-+        default:
++#ifdef CONFIG_USER_ONLY
-+            g_assert_not_reached();
+     gen_top_byte_ignore(s, clean, addr, s->tbid);
-         }
++#else
-     } else {
++    tcg_gen_mov_i64(clean, addr);
-         TCGv_i64 tcg_rd = cpu_reg(s, rd);
++#endif
-@@ -XXX,XX +XXX,XX @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
+     return clean;
              /* 64 bits from top half */
              tcg_gen_ld_i64(tcg_rd, cpu_env, fp_reg_hi_offset(s, rn));
              break;
 +        case 3:
 +            /* 16 bit */
 +            tcg_gen_ld16u_i64(tcg_rd, cpu_env, fp_reg_offset(s, rn, MO_16));
 +            break;
 +        default:
 +            g_assert_not_reached();
          }
      }
  }
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
          case 0xa: /* 64 bit */
          case 0xd: /* 64 bit to top half of quad */
              break;
 +        case 0x6: /* 16-bit float, 32-bit int */
 +        case 0xe: /* 16-bit float, 64-bit int */
 +            if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
 +                break;
 +            }
 +            /* fallthru */
          default:
              /* all other sf/type/rmode combinations are invalid */
              unallocated_encoding(s);
 --
-.17.0
+.20.1

-New patch
+[PULL 09/36] hw/arm/cubieboard: make sure SOC object isn't leaked
+From: Igor Mammedov <imammedo@redhat.com>
+SOC object returned by object_new() is leaked in current code.
+Set SOC parent explicitly to board and then unref to SOC object
+to make sure that refererence returned by object_new() is taken
+care of.
+The SOC object will be kept alive by its parent (machine) and
+will be automatically freed when MachineState is destroyed.
+Signed-off-by: Igor Mammedov <imammedo@redhat.com>
+Reported-by: Andrew Jones <drjones@redhat.com>
+Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Message-id: 20200303091254.22373-1-imammedo@redhat.com
+Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ hw/arm/cubieboard.c | 3 +++
+file changed, 3 insertions(+)
+diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/cubieboard.c
++++ b/hw/arm/cubieboard.c
+@@ -XXX,XX +XXX,XX @@ static void cubieboard_init(MachineState *machine)
+     }
+     a10 = AW_A10(object_new(TYPE_AW_A10));
++    object_property_add_child(OBJECT(machine), "soc", OBJECT(a10),
++                              &error_abort);
++    object_unref(OBJECT(a10));
+     object_property_set_int(OBJECT(&a10->emac), 1, "phy-addr", &err);
+     if (err != NULL) {
+--
+.20.1

-New patch
+[PULL 10/36] hw/arm/fsl-imx25: Wire up eSDHC controllers
+From: Guenter Roeck <linux@roeck-us.net>
+Wire up eSDHC controllers in fsl-imx25. For imx25-pdk, connect drives
+provided on the command line to available eSDHC controllers.
+This patch enables booting the imx25-pdk emulation from SD card.
+Signed-off-by: Guenter Roeck <linux@roeck-us.net>
+Message-id: 20200310215146.19688-2-linux@roeck-us.net
+Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+[PMM: made commit subject consistent with other patch]
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ include/hw/arm/fsl-imx25.h |  9 +++++++++
+ hw/arm/fsl-imx25.c         | 32 ++++++++++++++++++++++++++++++++
+ hw/arm/imx25_pdk.c         | 16 ++++++++++++++++
+files changed, 57 insertions(+)
+diff --git a/include/hw/arm/fsl-imx25.h b/include/hw/arm/fsl-imx25.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/fsl-imx25.h
++++ b/include/hw/arm/fsl-imx25.h
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/misc/imx_rngc.h"
+ #include "hw/i2c/imx_i2c.h"
+ #include "hw/gpio/imx_gpio.h"
++#include "hw/sd/sdhci.h"
+ #include "exec/memory.h"
+ #include "target/arm/cpu.h"
+@@ -XXX,XX +XXX,XX @@
+ #define FSL_IMX25_NUM_EPITS 2
+ #define FSL_IMX25_NUM_I2CS 3
+ #define FSL_IMX25_NUM_GPIOS 4
++#define FSL_IMX25_NUM_ESDHCS 2
+ typedef struct FslIMX25State {
+     /*< private >*/
+@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
+     IMXRNGCState   rngc;
+     IMXI2CState    i2c[FSL_IMX25_NUM_I2CS];
+     IMXGPIOState   gpio[FSL_IMX25_NUM_GPIOS];
++    SDHCIState     esdhc[FSL_IMX25_NUM_ESDHCS];
+     MemoryRegion   rom[2];
+     MemoryRegion   iram;
+     MemoryRegion   iram_alias;
+@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
+ #define FSL_IMX25_GPIO3_SIZE    0x4000
+ #define FSL_IMX25_RNGC_ADDR     0x53FB0000
+ #define FSL_IMX25_RNGC_SIZE     0x4000
++#define FSL_IMX25_ESDHC1_ADDR   0x53FB4000
++#define FSL_IMX25_ESDHC1_SIZE   0x4000
++#define FSL_IMX25_ESDHC2_ADDR   0x53FB8000
++#define FSL_IMX25_ESDHC2_SIZE   0x4000
+ #define FSL_IMX25_GPIO1_ADDR    0x53FCC000
+ #define FSL_IMX25_GPIO1_SIZE    0x4000
+ #define FSL_IMX25_GPIO2_ADDR    0x53FD0000
+@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
+ #define FSL_IMX25_GPIO2_IRQ     51
+ #define FSL_IMX25_GPIO3_IRQ     16
+ #define FSL_IMX25_GPIO4_IRQ     23
++#define FSL_IMX25_ESDHC1_IRQ    9
++#define FSL_IMX25_ESDHC2_IRQ    8
+ #endif /* FSL_IMX25_H */
+diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/fsl-imx25.c
++++ b/hw/arm/fsl-imx25.c
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/qdev-properties.h"
+ #include "chardev/char.h"
++#define IMX25_ESDHC_CAPABILITIES     0x07e20000
++
+ static void fsl_imx25_init(Object *obj)
+ {
+     FslIMX25State *s = FSL_IMX25(obj);
+@@ -XXX,XX +XXX,XX @@ static void fsl_imx25_init(Object *obj)
+         sysbus_init_child_obj(obj, "gpio[*]", &s->gpio[i], sizeof(s->gpio[i]),
+                               TYPE_IMX_GPIO);
+     }
++
++    for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
++        sysbus_init_child_obj(obj, "sdhc[*]", &s->esdhc[i], sizeof(s->esdhc[i]),
++                              TYPE_IMX_USDHC);
++    }
+ }
+ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
+@@ -XXX,XX +XXX,XX @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
+                                             gpio_table[i].irq));
+     }
++    /* Initialize all SDHC */
++    for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
++        static const struct {
++            hwaddr addr;
++            unsigned int irq;
++        } esdhc_table[FSL_IMX25_NUM_ESDHCS] = {
++            { FSL_IMX25_ESDHC1_ADDR, FSL_IMX25_ESDHC1_IRQ },
++            { FSL_IMX25_ESDHC2_ADDR, FSL_IMX25_ESDHC2_IRQ },
++        };
++
++        object_property_set_uint(OBJECT(&s->esdhc[i]), 2, "sd-spec-version",
++                                 &err);
++        object_property_set_uint(OBJECT(&s->esdhc[i]), IMX25_ESDHC_CAPABILITIES,
++                                 "capareg", &err);
++        object_property_set_bool(OBJECT(&s->esdhc[i]), true, "realized", &err);
++        if (err) {
++            error_propagate(errp, err);
++            return;
++        }
++        sysbus_mmio_map(SYS_BUS_DEVICE(&s->esdhc[i]), 0, esdhc_table[i].addr);
++        sysbus_connect_irq(SYS_BUS_DEVICE(&s->esdhc[i]), 0,
++                           qdev_get_gpio_in(DEVICE(&s->avic),
++                                            esdhc_table[i].irq));
++    }
++
+     /* initialize 2 x 16 KB ROM */
+     memory_region_init_rom(&s->rom[0], NULL,
+                            "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
+diff --git a/hw/arm/imx25_pdk.c b/hw/arm/imx25_pdk.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/imx25_pdk.c
++++ b/hw/arm/imx25_pdk.c
+@@ -XXX,XX +XXX,XX @@
+ #include "qemu/osdep.h"
+ #include "qapi/error.h"
+ #include "cpu.h"
++#include "hw/qdev-properties.h"
+ #include "hw/arm/fsl-imx25.h"
+ #include "hw/boards.h"
+ #include "qemu/error-report.h"
+@@ -XXX,XX +XXX,XX @@ static void imx25_pdk_init(MachineState *machine)
+     imx25_pdk_binfo.board_id = 1771,
+     imx25_pdk_binfo.nb_cpus = 1;
++    for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
++        BusState *bus;
++        DeviceState *carddev;
++        DriveInfo *di;
++        BlockBackend *blk;
++
++        di = drive_get_next(IF_SD);
++        blk = di ? blk_by_legacy_dinfo(di) : NULL;
++        bus = qdev_get_child_bus(DEVICE(&s->soc.esdhc[i]), "sd-bus");
++        carddev = qdev_create(bus, TYPE_SD_CARD);
++        qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
++        object_property_set_bool(OBJECT(carddev), true,
++                                 "realized", &error_fatal);
++    }
++
+     /*
+      * We test explicitly for qtest here as it is not done (yet?) in
+      * arm_load_kernel(). Without this the "make check" command would
+--
+.20.1

-[Qemu-devel] [PULL 01/16] fpu/softfloat: int_to_float ensure r fully initialised
+[PULL 11/36] hw/arm/fsl-imx25: Wire up USB controllers
-From: Alex Bennée <alex.bennee@linaro.org>
+From: Guenter Roeck <linux@roeck-us.net>
-Reported by Coverity (CID1390635). We ensure this for uint_to_float
+i.MX25 supports two USB controllers. Let's wire them up.
 later on so we might as well mirror that.
-Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
+With this patch, imx25-pdk can boot from both USB ports.
-Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 Message-id: 20200310215146.19688-3-linux@roeck-us.net
 Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- fpu/softfloat.c | 2 +-
+ include/hw/arm/fsl-imx25.h |  9 +++++++++
-file changed, 1 insertion(+), 1 deletion(-)
+ hw/arm/fsl-imx25.c         | 24 ++++++++++++++++++++++++
 files changed, 33 insertions(+)
-diff --git a/fpu/softfloat.c b/fpu/softfloat.c
+diff --git a/include/hw/arm/fsl-imx25.h b/include/hw/arm/fsl-imx25.h
 index XXXXXXX..XXXXXXX 100644
---- a/fpu/softfloat.c
+--- a/include/hw/arm/fsl-imx25.h
-+++ b/fpu/softfloat.c
++++ b/include/hw/arm/fsl-imx25.h
-@@ -XXX,XX +XXX,XX @@ FLOAT_TO_UINT(64, 64)
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/i2c/imx_i2c.h"
- static FloatParts int_to_float(int64_t a, float_status *status)
+ #include "hw/gpio/imx_gpio.h"
- {
+ #include "hw/sd/sdhci.h"
--    FloatParts r;
++#include "hw/usb/chipidea.h"
-+    FloatParts r = {};
+ #include "exec/memory.h"
-     if (a == 0) {
+ #include "target/arm/cpu.h"
-         r.cls = float_class_zero;
-         r.sign = false;
+@@ -XXX,XX +XXX,XX @@
  #define FSL_IMX25_NUM_I2CS 3
  #define FSL_IMX25_NUM_GPIOS 4
  #define FSL_IMX25_NUM_ESDHCS 2
 +#define FSL_IMX25_NUM_USBS 2
  typedef struct FslIMX25State {
      /*< private >*/
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
      IMXI2CState    i2c[FSL_IMX25_NUM_I2CS];
      IMXGPIOState   gpio[FSL_IMX25_NUM_GPIOS];
      SDHCIState     esdhc[FSL_IMX25_NUM_ESDHCS];
 +    ChipideaState  usb[FSL_IMX25_NUM_USBS];
      MemoryRegion   rom[2];
      MemoryRegion   iram;
      MemoryRegion   iram_alias;
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
  #define FSL_IMX25_GPIO1_SIZE    0x4000
  #define FSL_IMX25_GPIO2_ADDR    0x53FD0000
  #define FSL_IMX25_GPIO2_SIZE    0x4000
 +#define FSL_IMX25_USB1_ADDR     0x53FF4000
 +#define FSL_IMX25_USB1_SIZE     0x0200
 +#define FSL_IMX25_USB2_ADDR     0x53FF4400
 +#define FSL_IMX25_USB2_SIZE     0x0200
  #define FSL_IMX25_AVIC_ADDR     0x68000000
  #define FSL_IMX25_AVIC_SIZE     0x4000
  #define FSL_IMX25_IRAM_ADDR     0x78000000
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
  #define FSL_IMX25_GPIO4_IRQ     23
  #define FSL_IMX25_ESDHC1_IRQ    9
  #define FSL_IMX25_ESDHC2_IRQ    8
 +#define FSL_IMX25_USB1_IRQ      37
 +#define FSL_IMX25_USB2_IRQ      35
  #endif /* FSL_IMX25_H */
 diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/fsl-imx25.c
 +++ b/hw/arm/fsl-imx25.c
@@ -XXX,XX +XXX,XX @@ static void fsl_imx25_init(Object *obj)
          sysbus_init_child_obj(obj, "sdhc[*]", &s->esdhc[i], sizeof(s->esdhc[i]),
                                TYPE_IMX_USDHC);
      }
 +
 +    for (i = 0; i < FSL_IMX25_NUM_USBS; i++) {
 +        sysbus_init_child_obj(obj, "usb[*]", &s->usb[i], sizeof(s->usb[i]),
 +                              TYPE_CHIPIDEA);
 +    }
 +
  }
  static void fsl_imx25_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
                                              esdhc_table[i].irq));
      }
 +    /* USB */
 +    for (i = 0; i < FSL_IMX25_NUM_USBS; i++) {
 +        static const struct {
 +            hwaddr addr;
 +            unsigned int irq;
 +        } usb_table[FSL_IMX25_NUM_USBS] = {
 +            { FSL_IMX25_USB1_ADDR, FSL_IMX25_USB1_IRQ },
 +            { FSL_IMX25_USB2_ADDR, FSL_IMX25_USB2_IRQ },
 +        };
 +
 +        object_property_set_bool(OBJECT(&s->usb[i]), true, "realized",
 +                                 &error_abort);
 +        sysbus_mmio_map(SYS_BUS_DEVICE(&s->usb[i]), 0, usb_table[i].addr);
 +        sysbus_connect_irq(SYS_BUS_DEVICE(&s->usb[i]), 0,
 +                           qdev_get_gpio_in(DEVICE(&s->avic),
 +                                            usb_table[i].irq));
 +    }
 +
      /* initialize 2 x 16 KB ROM */
      memory_region_init_rom(&s->rom[0], NULL,
                             "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
 --
-.17.0
+.20.1

-New patch
+[PULL 12/36] hw/arm: add Allwinner H3 System-on-Chip
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
+The Allwinner H3 is a System on Chip containing four ARM Cortex A7
+processor cores. Features and specifications include DDR2/DDR3 memory,
+SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
+various I/O modules. This commit adds support for the Allwinner H3
+System on Chip.
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Message-id: 20200311221854.30370-2-nieklinnenbank@gmail.com
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ hw/arm/Makefile.objs            |   1 +
+ include/hw/arm/allwinner-h3.h   | 106 +++++++++++
+ hw/arm/allwinner-h3.c           | 327 ++++++++++++++++++++++++++++++++
+ MAINTAINERS                     |   7 +
+ default-configs/arm-softmmu.mak |   1 +
+ hw/arm/Kconfig                  |   8 +
+files changed, 450 insertions(+)
+ create mode 100644 include/hw/arm/allwinner-h3.h
+ create mode 100644 hw/arm/allwinner-h3.c
+diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/Makefile.objs
++++ b/hw/arm/Makefile.objs
+@@ -XXX,XX +XXX,XX @@ obj-$(CONFIG_DIGIC) += digic.o
+ obj-$(CONFIG_OMAP) += omap1.o omap2.o
+ obj-$(CONFIG_STRONGARM) += strongarm.o
+ obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
++obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3.o
+ obj-$(CONFIG_RASPI) += bcm2835_peripherals.o bcm2836.o raspi.o
+ obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o
+ obj-$(CONFIG_STM32F405_SOC) += stm32f405_soc.o
+diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/include/hw/arm/allwinner-h3.h
+@@ -XXX,XX +XXX,XX @@
++/*
++ * Allwinner H3 System on Chip emulation
++ *
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
++ *
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation, either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++/*
++ * The Allwinner H3 is a System on Chip containing four ARM Cortex A7
++ * processor cores. Features and specifications include DDR2/DDR3 memory,
++ * SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
++ * various I/O modules.
++ *
++ * This implementation is based on the following datasheet:
++ *
++ *   https://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf
++ *
++ * The latest datasheet and more info can be found on the Linux Sunxi wiki:
++ *
++ *   https://linux-sunxi.org/H3
++ */
++
++#ifndef HW_ARM_ALLWINNER_H3_H
++#define HW_ARM_ALLWINNER_H3_H
++
++#include "qom/object.h"
++#include "hw/arm/boot.h"
++#include "hw/timer/allwinner-a10-pit.h"
++#include "hw/intc/arm_gic.h"
++#include "target/arm/cpu.h"
++
++/**
++ * Allwinner H3 device list
++ *
++ * This enumeration is can be used refer to a particular device in the
++ * Allwinner H3 SoC. For example, the physical memory base address for
++ * each device can be found in the AwH3State object in the memmap member
++ * using the device enum value as index.
++ *
++ * @see AwH3State
++ */
++enum {
++    AW_H3_SRAM_A1,
++    AW_H3_SRAM_A2,
++    AW_H3_SRAM_C,
++    AW_H3_PIT,
++    AW_H3_UART0,
++    AW_H3_UART1,
++    AW_H3_UART2,
++    AW_H3_UART3,
++    AW_H3_GIC_DIST,
++    AW_H3_GIC_CPU,
++    AW_H3_GIC_HYP,
++    AW_H3_GIC_VCPU,
++    AW_H3_SDRAM
++};
++
++/** Total number of CPU cores in the H3 SoC */
++#define AW_H3_NUM_CPUS      (4)
++
++/**
++ * Allwinner H3 object model
++ * @{
++ */
++
++/** Object type for the Allwinner H3 SoC */
++#define TYPE_AW_H3 "allwinner-h3"
++
++/** Convert input object to Allwinner H3 state object */
++#define AW_H3(obj) OBJECT_CHECK(AwH3State, (obj), TYPE_AW_H3)
++
++/** @} */
++
++/**
++ * Allwinner H3 object
++ *
++ * This struct contains the state of all the devices
++ * which are currently emulated by the H3 SoC code.
++ */
++typedef struct AwH3State {
++    /*< private >*/
++    DeviceState parent_obj;
++    /*< public >*/
++
++    ARMCPU cpus[AW_H3_NUM_CPUS];
++    const hwaddr *memmap;
++    AwA10PITState timer;
++    GICState gic;
++    MemoryRegion sram_a1;
++    MemoryRegion sram_a2;
++    MemoryRegion sram_c;
++} AwH3State;
++
++#endif /* HW_ARM_ALLWINNER_H3_H */
+diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/hw/arm/allwinner-h3.c
+@@ -XXX,XX +XXX,XX @@
++/*
++ * Allwinner H3 System on Chip emulation
++ *
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
++ *
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation, either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#include "qemu/osdep.h"
++#include "exec/address-spaces.h"
++#include "qapi/error.h"
++#include "qemu/error-report.h"
++#include "qemu/module.h"
++#include "qemu/units.h"
++#include "hw/qdev-core.h"
++#include "cpu.h"
++#include "hw/sysbus.h"
++#include "hw/char/serial.h"
++#include "hw/misc/unimp.h"
++#include "sysemu/sysemu.h"
++#include "hw/arm/allwinner-h3.h"
++
++/* Memory map */
++const hwaddr allwinner_h3_memmap[] = {
++    [AW_H3_SRAM_A1]    = 0x00000000,
++    [AW_H3_SRAM_A2]    = 0x00044000,
++    [AW_H3_SRAM_C]     = 0x00010000,
++    [AW_H3_PIT]        = 0x01c20c00,
++    [AW_H3_UART0]      = 0x01c28000,
++    [AW_H3_UART1]      = 0x01c28400,
++    [AW_H3_UART2]      = 0x01c28800,
++    [AW_H3_UART3]      = 0x01c28c00,
++    [AW_H3_GIC_DIST]   = 0x01c81000,
++    [AW_H3_GIC_CPU]    = 0x01c82000,
++    [AW_H3_GIC_HYP]    = 0x01c84000,
++    [AW_H3_GIC_VCPU]   = 0x01c86000,
++    [AW_H3_SDRAM]      = 0x40000000
++};
++
++/* List of unimplemented devices */
++struct AwH3Unimplemented {
++    const char *device_name;
++    hwaddr base;
++    hwaddr size;
++} unimplemented[] = {
++    { "d-engine",  0x01000000, 4 * MiB },
++    { "d-inter",   0x01400000, 128 * KiB },
++    { "syscon",    0x01c00000, 4 * KiB },
++    { "dma",       0x01c02000, 4 * KiB },
++    { "nfdc",      0x01c03000, 4 * KiB },
++    { "ts",        0x01c06000, 4 * KiB },
++    { "keymem",    0x01c0b000, 4 * KiB },
++    { "lcd0",      0x01c0c000, 4 * KiB },
++    { "lcd1",      0x01c0d000, 4 * KiB },
++    { "ve",        0x01c0e000, 4 * KiB },
++    { "mmc0",      0x01c0f000, 4 * KiB },
++    { "mmc1",      0x01c10000, 4 * KiB },
++    { "mmc2",      0x01c11000, 4 * KiB },
++    { "sid",       0x01c14000, 1 * KiB },
++    { "crypto",    0x01c15000, 4 * KiB },
++    { "msgbox",    0x01c17000, 4 * KiB },
++    { "spinlock",  0x01c18000, 4 * KiB },
++    { "usb0-otg",  0x01c19000, 4 * KiB },
++    { "usb0-phy",  0x01c1a000, 4 * KiB },
++    { "usb1-phy",  0x01c1b000, 4 * KiB },
++    { "usb2-phy",  0x01c1c000, 4 * KiB },
++    { "usb3-phy",  0x01c1d000, 4 * KiB },
++    { "smc",       0x01c1e000, 4 * KiB },
++    { "ccu",       0x01c20000, 1 * KiB },
++    { "pio",       0x01c20800, 1 * KiB },
++    { "owa",       0x01c21000, 1 * KiB },
++    { "pwm",       0x01c21400, 1 * KiB },
++    { "keyadc",    0x01c21800, 1 * KiB },
++    { "pcm0",      0x01c22000, 1 * KiB },
++    { "pcm1",      0x01c22400, 1 * KiB },
++    { "pcm2",      0x01c22800, 1 * KiB },
++    { "audio",     0x01c22c00, 2 * KiB },
++    { "smta",      0x01c23400, 1 * KiB },
++    { "ths",       0x01c25000, 1 * KiB },
++    { "uart0",     0x01c28000, 1 * KiB },
++    { "uart1",     0x01c28400, 1 * KiB },
++    { "uart2",     0x01c28800, 1 * KiB },
++    { "uart3",     0x01c28c00, 1 * KiB },
++    { "twi0",      0x01c2ac00, 1 * KiB },
++    { "twi1",      0x01c2b000, 1 * KiB },
++    { "twi2",      0x01c2b400, 1 * KiB },
++    { "scr",       0x01c2c400, 1 * KiB },
++    { "emac",      0x01c30000, 64 * KiB },
++    { "gpu",       0x01c40000, 64 * KiB },
++    { "hstmr",     0x01c60000, 4 * KiB },
++    { "dramcom",   0x01c62000, 4 * KiB },
++    { "dramctl0",  0x01c63000, 4 * KiB },
++    { "dramphy0",  0x01c65000, 4 * KiB },
++    { "spi0",      0x01c68000, 4 * KiB },
++    { "spi1",      0x01c69000, 4 * KiB },
++    { "csi",       0x01cb0000, 320 * KiB },
++    { "tve",       0x01e00000, 64 * KiB },
++    { "hdmi",      0x01ee0000, 128 * KiB },
++    { "rtc",       0x01f00000, 1 * KiB },
++    { "r_timer",   0x01f00800, 1 * KiB },
++    { "r_intc",    0x01f00c00, 1 * KiB },
++    { "r_wdog",    0x01f01000, 1 * KiB },
++    { "r_prcm",    0x01f01400, 1 * KiB },
++    { "r_twd",     0x01f01800, 1 * KiB },
++    { "r_cpucfg",  0x01f01c00, 1 * KiB },
++    { "r_cir-rx",  0x01f02000, 1 * KiB },
++    { "r_twi",     0x01f02400, 1 * KiB },
++    { "r_uart",    0x01f02800, 1 * KiB },
++    { "r_pio",     0x01f02c00, 1 * KiB },
++    { "r_pwm",     0x01f03800, 1 * KiB },
++    { "core-dbg",  0x3f500000, 128 * KiB },
++    { "tsgen-ro",  0x3f506000, 4 * KiB },
++    { "tsgen-ctl", 0x3f507000, 4 * KiB },
++    { "ddr-mem",   0x40000000, 2 * GiB },
++    { "n-brom",    0xffff0000, 32 * KiB },
++    { "s-brom",    0xffff0000, 64 * KiB }
++};
++
++/* Per Processor Interrupts */
++enum {
++    AW_H3_GIC_PPI_MAINT     =  9,
++    AW_H3_GIC_PPI_HYPTIMER  = 10,
++    AW_H3_GIC_PPI_VIRTTIMER = 11,
++    AW_H3_GIC_PPI_SECTIMER  = 13,
++    AW_H3_GIC_PPI_PHYSTIMER = 14
++};
++
++/* Shared Processor Interrupts */
++enum {
++    AW_H3_GIC_SPI_UART0     =  0,
++    AW_H3_GIC_SPI_UART1     =  1,
++    AW_H3_GIC_SPI_UART2     =  2,
++    AW_H3_GIC_SPI_UART3     =  3,
++    AW_H3_GIC_SPI_TIMER0    = 18,
++    AW_H3_GIC_SPI_TIMER1    = 19,
++};
++
++/* Allwinner H3 general constants */
++enum {
++    AW_H3_GIC_NUM_SPI       = 128
++};
++
++static void allwinner_h3_init(Object *obj)
++{
++    AwH3State *s = AW_H3(obj);
++
++    s->memmap = allwinner_h3_memmap;
++
++    for (int i = 0; i < AW_H3_NUM_CPUS; i++) {
++        object_initialize_child(obj, "cpu[*]", &s->cpus[i], sizeof(s->cpus[i]),
++                                ARM_CPU_TYPE_NAME("cortex-a7"),
++                                &error_abort, NULL);
++    }
++
++    sysbus_init_child_obj(obj, "gic", &s->gic, sizeof(s->gic),
++                          TYPE_ARM_GIC);
++
++    sysbus_init_child_obj(obj, "timer", &s->timer, sizeof(s->timer),
++                          TYPE_AW_A10_PIT);
++    object_property_add_alias(obj, "clk0-freq", OBJECT(&s->timer),
++                              "clk0-freq", &error_abort);
++    object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer),
++                              "clk1-freq", &error_abort);
++}
++
++static void allwinner_h3_realize(DeviceState *dev, Error **errp)
++{
++    AwH3State *s = AW_H3(dev);
++    unsigned i;
++
++    /* CPUs */
++    for (i = 0; i < AW_H3_NUM_CPUS; i++) {
++
++        /* Provide Power State Coordination Interface */
++        qdev_prop_set_int32(DEVICE(&s->cpus[i]), "psci-conduit",
++                            QEMU_PSCI_CONDUIT_HVC);
++
++        /* Disable secondary CPUs */
++        qdev_prop_set_bit(DEVICE(&s->cpus[i]), "start-powered-off",
++                          i > 0);
++
++        /* All exception levels required */
++        qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el3", true);
++        qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el2", true);
++
++        /* Mark realized */
++        qdev_init_nofail(DEVICE(&s->cpus[i]));
++    }
++
++    /* Generic Interrupt Controller */
++    qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", AW_H3_GIC_NUM_SPI +
++                                                     GIC_INTERNAL);
++    qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
++    qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", AW_H3_NUM_CPUS);
++    qdev_prop_set_bit(DEVICE(&s->gic), "has-security-extensions", false);
++    qdev_prop_set_bit(DEVICE(&s->gic), "has-virtualization-extensions", true);
++    qdev_init_nofail(DEVICE(&s->gic));
++
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 0, s->memmap[AW_H3_GIC_DIST]);
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 1, s->memmap[AW_H3_GIC_CPU]);
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 2, s->memmap[AW_H3_GIC_HYP]);
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 3, s->memmap[AW_H3_GIC_VCPU]);
++
++    /*
++     * Wire the outputs from each CPU's generic timer and the GICv3
++     * maintenance interrupt signal to the appropriate GIC PPI inputs,
++     * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
++     */
++    for (i = 0; i < AW_H3_NUM_CPUS; i++) {
++        DeviceState *cpudev = DEVICE(&s->cpus[i]);
++        int ppibase = AW_H3_GIC_NUM_SPI + i * GIC_INTERNAL + GIC_NR_SGIS;
++        int irq;
++        /*
++         * Mapping from the output timer irq lines from the CPU to the
++         * GIC PPI inputs used for this board.
++         */
++        const int timer_irq[] = {
++            [GTIMER_PHYS] = AW_H3_GIC_PPI_PHYSTIMER,
++            [GTIMER_VIRT] = AW_H3_GIC_PPI_VIRTTIMER,
++            [GTIMER_HYP]  = AW_H3_GIC_PPI_HYPTIMER,
++            [GTIMER_SEC]  = AW_H3_GIC_PPI_SECTIMER,
++        };
++
++        /* Connect CPU timer outputs to GIC PPI inputs */
++        for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
++            qdev_connect_gpio_out(cpudev, irq,
++                                  qdev_get_gpio_in(DEVICE(&s->gic),
++                                                   ppibase + timer_irq[irq]));
++        }
++
++        /* Connect GIC outputs to CPU interrupt inputs */
++        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
++                           qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
++        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + AW_H3_NUM_CPUS,
++                           qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
++        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (2 * AW_H3_NUM_CPUS),
++                           qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
++        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (3 * AW_H3_NUM_CPUS),
++                           qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
++
++        /* GIC maintenance signal */
++        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (4 * AW_H3_NUM_CPUS),
++                           qdev_get_gpio_in(DEVICE(&s->gic),
++                                            ppibase + AW_H3_GIC_PPI_MAINT));
++    }
++
++    /* Timer */
++    qdev_init_nofail(DEVICE(&s->timer));
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->timer), 0, s->memmap[AW_H3_PIT]);
++    sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 0,
++                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER0));
++    sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 1,
++                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER1));
++
++    /* SRAM */
++    memory_region_init_ram(&s->sram_a1, OBJECT(dev), "sram A1",
++                            64 * KiB, &error_abort);
++    memory_region_init_ram(&s->sram_a2, OBJECT(dev), "sram A2",
++                            32 * KiB, &error_abort);
++    memory_region_init_ram(&s->sram_c, OBJECT(dev), "sram C",
++                            44 * KiB, &error_abort);
++    memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A1],
++                                &s->sram_a1);
++    memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A2],
++                                &s->sram_a2);
++    memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_C],
++                                &s->sram_c);
++
++    /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
++    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
++                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
++                   115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);
++    /* UART1 */
++    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART1], 2,
++                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART1),
++                   115200, serial_hd(1), DEVICE_NATIVE_ENDIAN);
++    /* UART2 */
++    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART2], 2,
++                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART2),
++                   115200, serial_hd(2), DEVICE_NATIVE_ENDIAN);
++    /* UART3 */
++    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART3], 2,
++                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3),
++                   115200, serial_hd(3), DEVICE_NATIVE_ENDIAN);
++
++    /* Unimplemented devices */
++    for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
++        create_unimplemented_device(unimplemented[i].device_name,
++                                    unimplemented[i].base,
++                                    unimplemented[i].size);
++    }
++}
++
++static void allwinner_h3_class_init(ObjectClass *oc, void *data)
++{
++    DeviceClass *dc = DEVICE_CLASS(oc);
++
++    dc->realize = allwinner_h3_realize;
++    /* Reason: uses serial_hd() in realize function */
++    dc->user_creatable = false;
++}
++
++static const TypeInfo allwinner_h3_type_info = {
++    .name = TYPE_AW_H3,
++    .parent = TYPE_DEVICE,
++    .instance_size = sizeof(AwH3State),
++    .instance_init = allwinner_h3_init,
++    .class_init = allwinner_h3_class_init,
++};
++
++static void allwinner_h3_register_types(void)
++{
++    type_register_static(&allwinner_h3_type_info);
++}
++
++type_init(allwinner_h3_register_types)
+diff --git a/MAINTAINERS b/MAINTAINERS
+index XXXXXXX..XXXXXXX 100644
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -XXX,XX +XXX,XX @@ F: hw/*/allwinner*
+ F: include/hw/*/allwinner*
+ F: hw/arm/cubieboard.c
++Allwinner-h3
++M: Niek Linnenbank <nieklinnenbank@gmail.com>
++L: qemu-arm@nongnu.org
++S: Maintained
++F: hw/*/allwinner-h3*
++F: include/hw/*/allwinner-h3*
++
+ ARM PrimeCell and CMSDK devices
+ M: Peter Maydell <peter.maydell@linaro.org>
+ L: qemu-arm@nongnu.org
+diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
+index XXXXXXX..XXXXXXX 100644
+--- a/default-configs/arm-softmmu.mak
++++ b/default-configs/arm-softmmu.mak
+@@ -XXX,XX +XXX,XX @@ CONFIG_FSL_IMX25=y
+ CONFIG_FSL_IMX7=y
+ CONFIG_FSL_IMX6UL=y
+ CONFIG_SEMIHOSTING=y
++CONFIG_ALLWINNER_H3=y
+diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/Kconfig
++++ b/hw/arm/Kconfig
+@@ -XXX,XX +XXX,XX @@ config ALLWINNER_A10
+     select SERIAL
+     select UNIMP
++config ALLWINNER_H3
++    bool
++    select ALLWINNER_A10_PIT
++    select SERIAL
++    select ARM_TIMER
++    select ARM_GIC
++    select UNIMP
++
+ config RASPI
+     bool
+     select FRAMEBUFFER
+--
+.20.1

-[Qemu-devel] [PULL 10/16] target/arm: Implement FP data-processing (3 source) for fp16
+[PULL 13/36] hw/arm: add Xunlong Orange Pi PC machine
-From: Richard Henderson <richard.henderson@linaro.org>
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
-We missed all of the scalar fp16 fma operations.
+The Xunlong Orange Pi PC is an Allwinner H3 System on Chip
 based embedded computer with mainline support in both U-Boot
 and Linux. The board comes with a Quad Core Cortex A7 @ 1.3GHz,
 GiB RAM, 100Mbit ethernet, USB, SD/MMC, USB, HDMI and
 various other I/O. This commit add support for the Xunlong
 Orange Pi PC machine.
-Cc: qemu-stable@nongnu.org
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Tested-by: KONRAD Frederic <frederic.konrad@adacore.com>
 Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
 Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+Acked-by: Igor Mammedov <imammedo@redhat.com>
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-3-nieklinnenbank@gmail.com
 Message-id: 20180512003217.9105-8-richard.henderson@linaro.org
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 48 ++++++++++++++++++++++++++++++++++++++
+ hw/arm/Makefile.objs |  2 +-
-file changed, 48 insertions(+)
+ hw/arm/orangepi.c    | 92 ++++++++++++++++++++++++++++++++++++++++++++
  MAINTAINERS          |  1 +
 files changed, 94 insertions(+), 1 deletion(-)
  create mode 100644 hw/arm/orangepi.c
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/hw/arm/Makefile.objs
-+++ b/target/arm/translate-a64.c
++++ b/hw/arm/Makefile.objs
-@@ -XXX,XX +XXX,XX @@ static void handle_fp_3src_double(DisasContext *s, bool o0, bool o1,
+@@ -XXX,XX +XXX,XX @@ obj-$(CONFIG_DIGIC) += digic.o
-     tcg_temp_free_i64(tcg_res);
+ obj-$(CONFIG_OMAP) += omap1.o omap2.o
- }
+ obj-$(CONFIG_STRONGARM) += strongarm.o
+ obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
-+/* Floating-point data-processing (3 source) - half precision */
+-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3.o
-+static void handle_fp_3src_half(DisasContext *s, bool o0, bool o1,
++obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3.o orangepi.o
-+                                int rd, int rn, int rm, int ra)
+ obj-$(CONFIG_RASPI) += bcm2835_peripherals.o bcm2836.o raspi.o
  obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o
  obj-$(CONFIG_STM32F405_SOC) += stm32f405_soc.o
 diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/hw/arm/orangepi.c
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Orange Pi emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#include "qemu/osdep.h"
 +#include "qemu/units.h"
 +#include "exec/address-spaces.h"
 +#include "qapi/error.h"
 +#include "cpu.h"
 +#include "hw/sysbus.h"
 +#include "hw/boards.h"
 +#include "hw/qdev-properties.h"
 +#include "hw/arm/allwinner-h3.h"
 +#include "sysemu/sysemu.h"
 +
 +static struct arm_boot_info orangepi_binfo = {
 +    .nb_cpus = AW_H3_NUM_CPUS,
 +};
 +
 +static void orangepi_init(MachineState *machine)
 +{
-+    TCGv_i32 tcg_op1, tcg_op2, tcg_op3;
++    AwH3State *h3;
 +    TCGv_i32 tcg_res = tcg_temp_new_i32();
 +    TCGv_ptr fpst = get_fpstatus_ptr(true);
 +
-+    tcg_op1 = read_fp_hreg(s, rn);
++    /* BIOS is not supported by this board */
-+    tcg_op2 = read_fp_hreg(s, rm);
++    if (bios_name) {
-+    tcg_op3 = read_fp_hreg(s, ra);
++        error_report("BIOS not supported for this machine");
-+
++        exit(1);
 +    /* These are fused multiply-add, and must be done as one
 +     * floating point operation with no rounding between the
 +     * multiplication and addition steps.
 +     * NB that doing the negations here as separate steps is
 +     * correct : an input NaN should come out with its sign bit
 +     * flipped if it is a negated-input.
 +     */
 +    if (o1 == true) {
 +        tcg_gen_xori_i32(tcg_op3, tcg_op3, 0x8000);
 +    }
 +
-+    if (o0 != o1) {
++    /* This board has fixed size RAM */
-+        tcg_gen_xori_i32(tcg_op1, tcg_op1, 0x8000);
++    if (machine->ram_size != 1 * GiB) {
 +        error_report("This machine can only be used with 1GiB of RAM");
 +        exit(1);
 +    }
 +
-+    gen_helper_advsimd_muladdh(tcg_res, tcg_op1, tcg_op2, tcg_op3, fpst);
++    /* Only allow Cortex-A7 for this board */
 +    if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a7")) != 0) {
 +        error_report("This board can only be used with cortex-a7 CPU");
 +        exit(1);
 +    }
 +
-+    write_fp_sreg(s, rd, tcg_res);
++    h3 = AW_H3(object_new(TYPE_AW_H3));
 +    object_property_add_child(OBJECT(machine), "soc", OBJECT(h3),
 +                              &error_abort);
 +    object_unref(OBJECT(h3));
 +
-+    tcg_temp_free_ptr(fpst);
++    /* Setup timer properties */
-+    tcg_temp_free_i32(tcg_op1);
++    object_property_set_int(OBJECT(h3), 32768, "clk0-freq",
-+    tcg_temp_free_i32(tcg_op2);
++                            &error_abort);
-+    tcg_temp_free_i32(tcg_op3);
++    object_property_set_int(OBJECT(h3), 24 * 1000 * 1000, "clk1-freq",
-+    tcg_temp_free_i32(tcg_res);
++                            &error_abort);
 +
 +    /* Mark H3 object realized */
 +    object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
 +
 +    /* SDRAM */
 +    memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
 +                                machine->ram);
 +
 +    orangepi_binfo.loader_start = h3->memmap[AW_H3_SDRAM];
 +    orangepi_binfo.ram_size = machine->ram_size;
 +    arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
 +}
 +
- /* Floating point data-processing (3 source)
++static void orangepi_machine_init(MachineClass *mc)
-  *   31  30  29 28       24 23  22  21  20  16  15  14  10 9    5 4    0
++{
-  * +---+---+---+-----------+------+----+------+----+------+------+------+
++    mc->desc = "Orange Pi PC";
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_3src(DisasContext *s, uint32_t insn)
++    mc->init = orangepi_init;
-         }
++    mc->min_cpus = AW_H3_NUM_CPUS;
-         handle_fp_3src_double(s, o0, o1, rd, rn, rm, ra);
++    mc->max_cpus = AW_H3_NUM_CPUS;
-         break;
++    mc->default_cpus = AW_H3_NUM_CPUS;
-+    case 3:
++    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
-+        if (!arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
++    mc->default_ram_size = 1 * GiB;
-+            unallocated_encoding(s);
++    mc->default_ram_id = "orangepi.ram";
-+            return;
++}
-+        }
++
-+        if (!fp_access_check(s)) {
++DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)
-+            return;
+diff --git a/MAINTAINERS b/MAINTAINERS
-+        }
+index XXXXXXX..XXXXXXX 100644
-+        handle_fp_3src_half(s, o0, o1, rd, rn, rm, ra);
+--- a/MAINTAINERS
-+        break;
++++ b/MAINTAINERS
-     default:
+@@ -XXX,XX +XXX,XX @@ L: qemu-arm@nongnu.org
-         unallocated_encoding(s);
+ S: Maintained
-     }
+ F: hw/*/allwinner-h3*
  F: include/hw/*/allwinner-h3*
 +F: hw/arm/orangepi.c
  ARM PrimeCell and CMSDK devices
  M: Peter Maydell <peter.maydell@linaro.org>
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 09/16] target/arm: Implement FP data-processing (2 source) for fp16
+[PULL 14/36] hw/arm/allwinner-h3: add Clock Control Unit
-From: Richard Henderson <richard.henderson@linaro.org>
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
-We missed all of the scalar fp16 binary operations.
+The Clock Control Unit is responsible for clock signal generation,
 configuration and distribution in the Allwinner H3 System on Chip.
 This commit adds support for the Clock Control Unit which emulates
 a simple read/write register interface.
-Cc: qemu-stable@nongnu.org
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-4-nieklinnenbank@gmail.com
 Message-id: 20180512003217.9105-7-richard.henderson@linaro.org
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 65 ++++++++++++++++++++++++++++++++++++++
+ hw/misc/Makefile.objs              |   1 +
-file changed, 65 insertions(+)
+ include/hw/arm/allwinner-h3.h      |   3 +
  include/hw/misc/allwinner-h3-ccu.h |  66 ++++++++
  hw/arm/allwinner-h3.c              |   9 +-
  hw/misc/allwinner-h3-ccu.c         | 242 +++++++++++++++++++++++++++++
 files changed, 320 insertions(+), 1 deletion(-)
  create mode 100644 include/hw/misc/allwinner-h3-ccu.h
  create mode 100644 hw/misc/allwinner-h3-ccu.c
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/hw/misc/Makefile.objs
-+++ b/target/arm/translate-a64.c
++++ b/hw/misc/Makefile.objs
-@@ -XXX,XX +XXX,XX @@ static void handle_fp_2src_double(DisasContext *s, int opcode,
+@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_MACIO) += macio/
-     tcg_temp_free_i64(tcg_res);
  common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
 +common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
  common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
  common-obj-$(CONFIG_NSERIES) += cbus.o
  common-obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
 diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
 index XXXXXXX..XXXXXXX 100644
 --- a/include/hw/arm/allwinner-h3.h
 +++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
  #include "hw/arm/boot.h"
  #include "hw/timer/allwinner-a10-pit.h"
  #include "hw/intc/arm_gic.h"
 +#include "hw/misc/allwinner-h3-ccu.h"
  #include "target/arm/cpu.h"
  /**
@@ -XXX,XX +XXX,XX @@ enum {
      AW_H3_SRAM_A1,
      AW_H3_SRAM_A2,
      AW_H3_SRAM_C,
 +    AW_H3_CCU,
      AW_H3_PIT,
      AW_H3_UART0,
      AW_H3_UART1,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
      ARMCPU cpus[AW_H3_NUM_CPUS];
      const hwaddr *memmap;
      AwA10PITState timer;
 +    AwH3ClockCtlState ccu;
      GICState gic;
      MemoryRegion sram_a1;
      MemoryRegion sram_a2;
 diff --git a/include/hw/misc/allwinner-h3-ccu.h b/include/hw/misc/allwinner-h3-ccu.h
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/include/hw/misc/allwinner-h3-ccu.h
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner H3 Clock Control Unit emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#ifndef HW_MISC_ALLWINNER_H3_CCU_H
 +#define HW_MISC_ALLWINNER_H3_CCU_H
 +
 +#include "qom/object.h"
 +#include "hw/sysbus.h"
 +
 +/**
 + * @name Constants
 + * @{
 + */
 +
 +/** Size of register I/O address space used by CCU device */
 +#define AW_H3_CCU_IOSIZE        (0x400)
 +
 +/** Total number of known registers */
 +#define AW_H3_CCU_REGS_NUM      (AW_H3_CCU_IOSIZE / sizeof(uint32_t))
 +
 +/** @} */
 +
 +/**
 + * @name Object model
 + * @{
 + */
 +
 +#define TYPE_AW_H3_CCU    "allwinner-h3-ccu"
 +#define AW_H3_CCU(obj) \
 +    OBJECT_CHECK(AwH3ClockCtlState, (obj), TYPE_AW_H3_CCU)
 +
 +/** @} */
 +
 +/**
 + * Allwinner H3 CCU object instance state.
 + */
 +typedef struct AwH3ClockCtlState {
 +    /*< private >*/
 +    SysBusDevice parent_obj;
 +    /*< public >*/
 +
 +    /** Maps I/O registers in physical memory */
 +    MemoryRegion iomem;
 +
 +    /** Array of hardware registers */
 +    uint32_t regs[AW_H3_CCU_REGS_NUM];
 +
 +} AwH3ClockCtlState;
 +
 +#endif /* HW_MISC_ALLWINNER_H3_CCU_H */
 diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/allwinner-h3.c
 +++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
      [AW_H3_SRAM_A1]    = 0x00000000,
      [AW_H3_SRAM_A2]    = 0x00044000,
      [AW_H3_SRAM_C]     = 0x00010000,
 +    [AW_H3_CCU]        = 0x01c20000,
      [AW_H3_PIT]        = 0x01c20c00,
      [AW_H3_UART0]      = 0x01c28000,
      [AW_H3_UART1]      = 0x01c28400,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
      { "usb2-phy",  0x01c1c000, 4 * KiB },
      { "usb3-phy",  0x01c1d000, 4 * KiB },
      { "smc",       0x01c1e000, 4 * KiB },
 -    { "ccu",       0x01c20000, 1 * KiB },
      { "pio",       0x01c20800, 1 * KiB },
      { "owa",       0x01c21000, 1 * KiB },
      { "pwm",       0x01c21400, 1 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
                                "clk0-freq", &error_abort);
      object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer),
                                "clk1-freq", &error_abort);
 +
 +    sysbus_init_child_obj(obj, "ccu", &s->ccu, sizeof(s->ccu),
 +                          TYPE_AW_H3_CCU);
  }
-+/* Floating-point data-processing (2 source) - half precision */
+ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
-+static void handle_fp_2src_half(DisasContext *s, int opcode,
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
-+                                int rd, int rn, int rm)
+     memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_C],
-+{
+                                 &s->sram_c);
-+    TCGv_i32 tcg_op1;
-+    TCGv_i32 tcg_op2;
++    /* Clock Control Unit */
-+    TCGv_i32 tcg_res;
++    qdev_init_nofail(DEVICE(&s->ccu));
-+    TCGv_ptr fpst;
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
 +
-+    tcg_res = tcg_temp_new_i32();
+     /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
-+    fpst = get_fpstatus_ptr(true);
+     serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
-+    tcg_op1 = read_fp_hreg(s, rn);
+                    qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
-+    tcg_op2 = read_fp_hreg(s, rm);
+diff --git a/hw/misc/allwinner-h3-ccu.c b/hw/misc/allwinner-h3-ccu.c
-+
+new file mode 100644
-+    switch (opcode) {
+index XXXXXXX..XXXXXXX
-+    case 0x0: /* FMUL */
+--- /dev/null
-+        gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
++++ b/hw/misc/allwinner-h3-ccu.c
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner H3 Clock Control Unit emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#include "qemu/osdep.h"
 +#include "qemu/units.h"
 +#include "hw/sysbus.h"
 +#include "migration/vmstate.h"
 +#include "qemu/log.h"
 +#include "qemu/module.h"
 +#include "hw/misc/allwinner-h3-ccu.h"
 +
 +/* CCU register offsets */
 +enum {
 +    REG_PLL_CPUX             = 0x0000, /* PLL CPUX Control */
 +    REG_PLL_AUDIO            = 0x0008, /* PLL Audio Control */
 +    REG_PLL_VIDEO            = 0x0010, /* PLL Video Control */
 +    REG_PLL_VE               = 0x0018, /* PLL VE Control */
 +    REG_PLL_DDR              = 0x0020, /* PLL DDR Control */
 +    REG_PLL_PERIPH0          = 0x0028, /* PLL Peripherals 0 Control */
 +    REG_PLL_GPU              = 0x0038, /* PLL GPU Control */
 +    REG_PLL_PERIPH1          = 0x0044, /* PLL Peripherals 1 Control */
 +    REG_PLL_DE               = 0x0048, /* PLL Display Engine Control */
 +    REG_CPUX_AXI             = 0x0050, /* CPUX/AXI Configuration */
 +    REG_APB1                 = 0x0054, /* ARM Peripheral Bus 1 Config */
 +    REG_APB2                 = 0x0058, /* ARM Peripheral Bus 2 Config */
 +    REG_DRAM_CFG             = 0x00F4, /* DRAM Configuration */
 +    REG_MBUS                 = 0x00FC, /* MBUS Reset */
 +    REG_PLL_TIME0            = 0x0200, /* PLL Stable Time 0 */
 +    REG_PLL_TIME1            = 0x0204, /* PLL Stable Time 1 */
 +    REG_PLL_CPUX_BIAS        = 0x0220, /* PLL CPUX Bias */
 +    REG_PLL_AUDIO_BIAS       = 0x0224, /* PLL Audio Bias */
 +    REG_PLL_VIDEO_BIAS       = 0x0228, /* PLL Video Bias */
 +    REG_PLL_VE_BIAS          = 0x022C, /* PLL VE Bias */
 +    REG_PLL_DDR_BIAS         = 0x0230, /* PLL DDR Bias */
 +    REG_PLL_PERIPH0_BIAS     = 0x0234, /* PLL Peripherals 0 Bias */
 +    REG_PLL_GPU_BIAS         = 0x023C, /* PLL GPU Bias */
 +    REG_PLL_PERIPH1_BIAS     = 0x0244, /* PLL Peripherals 1 Bias */
 +    REG_PLL_DE_BIAS          = 0x0248, /* PLL Display Engine Bias */
 +    REG_PLL_CPUX_TUNING      = 0x0250, /* PLL CPUX Tuning */
 +    REG_PLL_DDR_TUNING       = 0x0260, /* PLL DDR Tuning */
 +};
 +
 +#define REG_INDEX(offset)    (offset / sizeof(uint32_t))
 +
 +/* CCU register flags */
 +enum {
 +    REG_DRAM_CFG_UPDATE      = (1 << 16),
 +};
 +
 +enum {
 +    REG_PLL_ENABLE           = (1 << 31),
 +    REG_PLL_LOCK             = (1 << 28),
 +};
 +
 +
 +/* CCU register reset values */
 +enum {
 +    REG_PLL_CPUX_RST         = 0x00001000,
 +    REG_PLL_AUDIO_RST        = 0x00035514,
 +    REG_PLL_VIDEO_RST        = 0x03006207,
 +    REG_PLL_VE_RST           = 0x03006207,
 +    REG_PLL_DDR_RST          = 0x00001000,
 +    REG_PLL_PERIPH0_RST      = 0x00041811,
 +    REG_PLL_GPU_RST          = 0x03006207,
 +    REG_PLL_PERIPH1_RST      = 0x00041811,
 +    REG_PLL_DE_RST           = 0x03006207,
 +    REG_CPUX_AXI_RST         = 0x00010000,
 +    REG_APB1_RST             = 0x00001010,
 +    REG_APB2_RST             = 0x01000000,
 +    REG_DRAM_CFG_RST         = 0x00000000,
 +    REG_MBUS_RST             = 0x80000000,
 +    REG_PLL_TIME0_RST        = 0x000000FF,
 +    REG_PLL_TIME1_RST        = 0x000000FF,
 +    REG_PLL_CPUX_BIAS_RST    = 0x08100200,
 +    REG_PLL_AUDIO_BIAS_RST   = 0x10100000,
 +    REG_PLL_VIDEO_BIAS_RST   = 0x10100000,
 +    REG_PLL_VE_BIAS_RST      = 0x10100000,
 +    REG_PLL_DDR_BIAS_RST     = 0x81104000,
 +    REG_PLL_PERIPH0_BIAS_RST = 0x10100010,
 +    REG_PLL_GPU_BIAS_RST     = 0x10100000,
 +    REG_PLL_PERIPH1_BIAS_RST = 0x10100010,
 +    REG_PLL_DE_BIAS_RST      = 0x10100000,
 +    REG_PLL_CPUX_TUNING_RST  = 0x0A101000,
 +    REG_PLL_DDR_TUNING_RST   = 0x14880000,
 +};
 +
 +static uint64_t allwinner_h3_ccu_read(void *opaque, hwaddr offset,
 +                                      unsigned size)
 +{
 +    const AwH3ClockCtlState *s = AW_H3_CCU(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    switch (offset) {
 +    case 0x308 ... AW_H3_CCU_IOSIZE:
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    return s->regs[idx];
 +}
 +
 +static void allwinner_h3_ccu_write(void *opaque, hwaddr offset,
 +                                   uint64_t val, unsigned size)
 +{
 +    AwH3ClockCtlState *s = AW_H3_CCU(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    switch (offset) {
 +    case REG_DRAM_CFG:    /* DRAM Configuration */
 +        val &= ~REG_DRAM_CFG_UPDATE;
 +        break;
-+    case 0x1: /* FDIV */
++    case REG_PLL_CPUX:    /* PLL CPUX Control */
-+        gen_helper_advsimd_divh(tcg_res, tcg_op1, tcg_op2, fpst);
++    case REG_PLL_AUDIO:   /* PLL Audio Control */
 +    case REG_PLL_VIDEO:   /* PLL Video Control */
 +    case REG_PLL_VE:      /* PLL VE Control */
 +    case REG_PLL_DDR:     /* PLL DDR Control */
 +    case REG_PLL_PERIPH0: /* PLL Peripherals 0 Control */
 +    case REG_PLL_GPU:     /* PLL GPU Control */
 +    case REG_PLL_PERIPH1: /* PLL Peripherals 1 Control */
 +    case REG_PLL_DE:      /* PLL Display Engine Control */
 +        if (val & REG_PLL_ENABLE) {
 +            val |= REG_PLL_LOCK;
 +        }
 +        break;
-+    case 0x2: /* FADD */
++    case 0x308 ... AW_H3_CCU_IOSIZE:
-+        gen_helper_advsimd_addh(tcg_res, tcg_op1, tcg_op2, fpst);
++        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
-+        break;
++                      __func__, (uint32_t)offset);
 +    case 0x3: /* FSUB */
 +        gen_helper_advsimd_subh(tcg_res, tcg_op1, tcg_op2, fpst);
 +        break;
 +    case 0x4: /* FMAX */
 +        gen_helper_advsimd_maxh(tcg_res, tcg_op1, tcg_op2, fpst);
 +        break;
 +    case 0x5: /* FMIN */
 +        gen_helper_advsimd_minh(tcg_res, tcg_op1, tcg_op2, fpst);
 +        break;
 +    case 0x6: /* FMAXNM */
 +        gen_helper_advsimd_maxnumh(tcg_res, tcg_op1, tcg_op2, fpst);
 +        break;
 +    case 0x7: /* FMINNM */
 +        gen_helper_advsimd_minnumh(tcg_res, tcg_op1, tcg_op2, fpst);
 +        break;
 +    case 0x8: /* FNMUL */
 +        gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
 +        tcg_gen_xori_i32(tcg_res, tcg_res, 0x8000);
 +        break;
 +    default:
-+        g_assert_not_reached();
++        qemu_log_mask(LOG_UNIMP, "%s: unimplemented write offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        break;
 +    }
 +
-+    write_fp_sreg(s, rd, tcg_res);
++    s->regs[idx] = (uint32_t) val;
-+
++}
-+    tcg_temp_free_ptr(fpst);
++
-+    tcg_temp_free_i32(tcg_op1);
++static const MemoryRegionOps allwinner_h3_ccu_ops = {
-+    tcg_temp_free_i32(tcg_op2);
++    .read = allwinner_h3_ccu_read,
-+    tcg_temp_free_i32(tcg_res);
++    .write = allwinner_h3_ccu_write,
-+}
++    .endianness = DEVICE_NATIVE_ENDIAN,
-+
++    .valid = {
- /* Floating point data-processing (2 source)
++        .min_access_size = 4,
-  *   31  30  29 28       24 23  22  21 20  16 15    12 11 10 9    5 4    0
++        .max_access_size = 4,
-  * +---+---+---+-----------+------+---+------+--------+-----+------+------+
++    },
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_2src(DisasContext *s, uint32_t insn)
++    .impl.min_access_size = 4,
-         }
++};
-         handle_fp_2src_double(s, opcode, rd, rn, rm);
++
-         break;
++static void allwinner_h3_ccu_reset(DeviceState *dev)
-+    case 3:
++{
-+        if (!arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
++    AwH3ClockCtlState *s = AW_H3_CCU(dev);
-+            unallocated_encoding(s);
++
-+            return;
++    /* Set default values for registers */
-+        }
++    s->regs[REG_INDEX(REG_PLL_CPUX)] = REG_PLL_CPUX_RST;
-+        if (!fp_access_check(s)) {
++    s->regs[REG_INDEX(REG_PLL_AUDIO)] = REG_PLL_AUDIO_RST;
-+            return;
++    s->regs[REG_INDEX(REG_PLL_VIDEO)] = REG_PLL_VIDEO_RST;
-+        }
++    s->regs[REG_INDEX(REG_PLL_VE)] = REG_PLL_VE_RST;
-+        handle_fp_2src_half(s, opcode, rd, rn, rm);
++    s->regs[REG_INDEX(REG_PLL_DDR)] = REG_PLL_DDR_RST;
-+        break;
++    s->regs[REG_INDEX(REG_PLL_PERIPH0)] = REG_PLL_PERIPH0_RST;
-     default:
++    s->regs[REG_INDEX(REG_PLL_GPU)] = REG_PLL_GPU_RST;
-         unallocated_encoding(s);
++    s->regs[REG_INDEX(REG_PLL_PERIPH1)] = REG_PLL_PERIPH1_RST;
-     }
++    s->regs[REG_INDEX(REG_PLL_DE)] = REG_PLL_DE_RST;
 +    s->regs[REG_INDEX(REG_CPUX_AXI)] = REG_CPUX_AXI_RST;
 +    s->regs[REG_INDEX(REG_APB1)] = REG_APB1_RST;
 +    s->regs[REG_INDEX(REG_APB2)] = REG_APB2_RST;
 +    s->regs[REG_INDEX(REG_DRAM_CFG)] = REG_DRAM_CFG_RST;
 +    s->regs[REG_INDEX(REG_MBUS)] = REG_MBUS_RST;
 +    s->regs[REG_INDEX(REG_PLL_TIME0)] = REG_PLL_TIME0_RST;
 +    s->regs[REG_INDEX(REG_PLL_TIME1)] = REG_PLL_TIME1_RST;
 +    s->regs[REG_INDEX(REG_PLL_CPUX_BIAS)] = REG_PLL_CPUX_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_AUDIO_BIAS)] = REG_PLL_AUDIO_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_VIDEO_BIAS)] = REG_PLL_VIDEO_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_VE_BIAS)] = REG_PLL_VE_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_DDR_BIAS)] = REG_PLL_DDR_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_PERIPH0_BIAS)] = REG_PLL_PERIPH0_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_GPU_BIAS)] = REG_PLL_GPU_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_PERIPH1_BIAS)] = REG_PLL_PERIPH1_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_DE_BIAS)] = REG_PLL_DE_BIAS_RST;
 +    s->regs[REG_INDEX(REG_PLL_CPUX_TUNING)] = REG_PLL_CPUX_TUNING_RST;
 +    s->regs[REG_INDEX(REG_PLL_DDR_TUNING)] = REG_PLL_DDR_TUNING_RST;
 +}
 +
 +static void allwinner_h3_ccu_init(Object *obj)
 +{
 +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 +    AwH3ClockCtlState *s = AW_H3_CCU(obj);
 +
 +    /* Memory mapping */
 +    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_h3_ccu_ops, s,
 +                          TYPE_AW_H3_CCU, AW_H3_CCU_IOSIZE);
 +    sysbus_init_mmio(sbd, &s->iomem);
 +}
 +
 +static const VMStateDescription allwinner_h3_ccu_vmstate = {
 +    .name = "allwinner-h3-ccu",
 +    .version_id = 1,
 +    .minimum_version_id = 1,
 +    .fields = (VMStateField[]) {
 +        VMSTATE_UINT32_ARRAY(regs, AwH3ClockCtlState, AW_H3_CCU_REGS_NUM),
 +        VMSTATE_END_OF_LIST()
 +    }
 +};
 +
 +static void allwinner_h3_ccu_class_init(ObjectClass *klass, void *data)
 +{
 +    DeviceClass *dc = DEVICE_CLASS(klass);
 +
 +    dc->reset = allwinner_h3_ccu_reset;
 +    dc->vmsd = &allwinner_h3_ccu_vmstate;
 +}
 +
 +static const TypeInfo allwinner_h3_ccu_info = {
 +    .name          = TYPE_AW_H3_CCU,
 +    .parent        = TYPE_SYS_BUS_DEVICE,
 +    .instance_init = allwinner_h3_ccu_init,
 +    .instance_size = sizeof(AwH3ClockCtlState),
 +    .class_init    = allwinner_h3_ccu_class_init,
 +};
 +
 +static void allwinner_h3_ccu_register(void)
 +{
 +    type_register_static(&allwinner_h3_ccu_info);
 +}
 +
 +type_init(allwinner_h3_ccu_register)
 --
-.17.0
+.20.1

-New patch
+[PULL 15/36] hw/arm/allwinner-h3: add USB host controller
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
+The Allwinner H3 System on Chip contains multiple USB 2.0 bus
+connections which provide software access using the Enhanced
+Host Controller Interface (EHCI) and Open Host Controller
+Interface (OHCI) interfaces. This commit adds support for
+both interfaces in the Allwinner H3 System on Chip.
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
+Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Message-id: 20200311221854.30370-5-nieklinnenbank@gmail.com
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ hw/usb/hcd-ehci.h             |  1 +
+ include/hw/arm/allwinner-h3.h |  8 +++++++
+ hw/arm/allwinner-h3.c         | 44 +++++++++++++++++++++++++++++++++++
+ hw/usb/hcd-ehci-sysbus.c      | 17 ++++++++++++++
+ hw/arm/Kconfig                |  2 ++
+files changed, 72 insertions(+)
+diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/usb/hcd-ehci.h
++++ b/hw/usb/hcd-ehci.h
+@@ -XXX,XX +XXX,XX @@ typedef struct EHCIPCIState {
+ #define TYPE_SYS_BUS_EHCI "sysbus-ehci-usb"
+ #define TYPE_PLATFORM_EHCI "platform-ehci-usb"
+ #define TYPE_EXYNOS4210_EHCI "exynos4210-ehci-usb"
++#define TYPE_AW_H3_EHCI "aw-h3-ehci-usb"
+ #define TYPE_TEGRA2_EHCI "tegra2-ehci-usb"
+ #define TYPE_PPC4xx_EHCI "ppc4xx-ehci-usb"
+ #define TYPE_FUSBH200_EHCI "fusbh200-ehci-usb"
+diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/allwinner-h3.h
++++ b/include/hw/arm/allwinner-h3.h
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_SRAM_A1,
+     AW_H3_SRAM_A2,
+     AW_H3_SRAM_C,
++    AW_H3_EHCI0,
++    AW_H3_OHCI0,
++    AW_H3_EHCI1,
++    AW_H3_OHCI1,
++    AW_H3_EHCI2,
++    AW_H3_OHCI2,
++    AW_H3_EHCI3,
++    AW_H3_OHCI3,
+     AW_H3_CCU,
+     AW_H3_PIT,
+     AW_H3_UART0,
+diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/allwinner-h3.c
++++ b/hw/arm/allwinner-h3.c
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/sysbus.h"
+ #include "hw/char/serial.h"
+ #include "hw/misc/unimp.h"
++#include "hw/usb/hcd-ehci.h"
+ #include "sysemu/sysemu.h"
+ #include "hw/arm/allwinner-h3.h"
+@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
+     [AW_H3_SRAM_A1]    = 0x00000000,
+     [AW_H3_SRAM_A2]    = 0x00044000,
+     [AW_H3_SRAM_C]     = 0x00010000,
++    [AW_H3_EHCI0]      = 0x01c1a000,
++    [AW_H3_OHCI0]      = 0x01c1a400,
++    [AW_H3_EHCI1]      = 0x01c1b000,
++    [AW_H3_OHCI1]      = 0x01c1b400,
++    [AW_H3_EHCI2]      = 0x01c1c000,
++    [AW_H3_OHCI2]      = 0x01c1c400,
++    [AW_H3_EHCI3]      = 0x01c1d000,
++    [AW_H3_OHCI3]      = 0x01c1d400,
+     [AW_H3_CCU]        = 0x01c20000,
+     [AW_H3_PIT]        = 0x01c20c00,
+     [AW_H3_UART0]      = 0x01c28000,
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_GIC_SPI_UART3     =  3,
+     AW_H3_GIC_SPI_TIMER0    = 18,
+     AW_H3_GIC_SPI_TIMER1    = 19,
++    AW_H3_GIC_SPI_EHCI0     = 72,
++    AW_H3_GIC_SPI_OHCI0     = 73,
++    AW_H3_GIC_SPI_EHCI1     = 74,
++    AW_H3_GIC_SPI_OHCI1     = 75,
++    AW_H3_GIC_SPI_EHCI2     = 76,
++    AW_H3_GIC_SPI_OHCI2     = 77,
++    AW_H3_GIC_SPI_EHCI3     = 78,
++    AW_H3_GIC_SPI_OHCI3     = 79,
+ };
+ /* Allwinner H3 general constants */
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
+     qdev_init_nofail(DEVICE(&s->ccu));
+     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
++    /* Universal Serial Bus */
++    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_EHCI0));
++    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI1],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_EHCI1));
++    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI2],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_EHCI2));
++    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI3],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_EHCI3));
++
++    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI0],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_OHCI0));
++    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI1],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_OHCI1));
++    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI2],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_OHCI2));
++    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI3],
++                         qdev_get_gpio_in(DEVICE(&s->gic),
++                                          AW_H3_GIC_SPI_OHCI3));
++
+     /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
+     serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
+                    qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
+diff --git a/hw/usb/hcd-ehci-sysbus.c b/hw/usb/hcd-ehci-sysbus.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/usb/hcd-ehci-sysbus.c
++++ b/hw/usb/hcd-ehci-sysbus.c
+@@ -XXX,XX +XXX,XX @@ static const TypeInfo ehci_exynos4210_type_info = {
+     .class_init    = ehci_exynos4210_class_init,
+ };
++static void ehci_aw_h3_class_init(ObjectClass *oc, void *data)
++{
++    SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
++    DeviceClass *dc = DEVICE_CLASS(oc);
++
++    sec->capsbase = 0x0;
++    sec->opregbase = 0x10;
++    set_bit(DEVICE_CATEGORY_USB, dc->categories);
++}
++
++static const TypeInfo ehci_aw_h3_type_info = {
++    .name          = TYPE_AW_H3_EHCI,
++    .parent        = TYPE_SYS_BUS_EHCI,
++    .class_init    = ehci_aw_h3_class_init,
++};
++
+ static void ehci_tegra2_class_init(ObjectClass *oc, void *data)
+ {
+     SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
+@@ -XXX,XX +XXX,XX @@ static void ehci_sysbus_register_types(void)
+     type_register_static(&ehci_type_info);
+     type_register_static(&ehci_platform_type_info);
+     type_register_static(&ehci_exynos4210_type_info);
++    type_register_static(&ehci_aw_h3_type_info);
+     type_register_static(&ehci_tegra2_type_info);
+     type_register_static(&ehci_ppc4xx_type_info);
+     type_register_static(&ehci_fusbh200_type_info);
+diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/Kconfig
++++ b/hw/arm/Kconfig
+@@ -XXX,XX +XXX,XX @@ config ALLWINNER_H3
+     select ARM_TIMER
+     select ARM_GIC
+     select UNIMP
++    select USB_OHCI
++    select USB_EHCI_SYSBUS
+ config RASPI
+     bool
+--
+.20.1

-New patch
+[PULL 16/36] hw/arm/allwinner-h3: add System Control module
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
 The Allwinner H3 System on Chip has an System Control
 module that provides system wide generic controls and
 device information. This commit adds support for the
 Allwinner H3 System Control module.
 Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
 Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
 Message-id: 20200311221854.30370-6-nieklinnenbank@gmail.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
  hw/misc/Makefile.objs                  |   1 +
  include/hw/arm/allwinner-h3.h          |   3 +
  include/hw/misc/allwinner-h3-sysctrl.h |  67 ++++++++++++
  hw/arm/allwinner-h3.c                  |   9 +-
  hw/misc/allwinner-h3-sysctrl.c         | 140 +++++++++++++++++++++++++
 files changed, 219 insertions(+), 1 deletion(-)
  create mode 100644 include/hw/misc/allwinner-h3-sysctrl.h
  create mode 100644 hw/misc/allwinner-h3-sysctrl.c
 diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/misc/Makefile.objs
 +++ b/hw/misc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_MACIO) += macio/
  common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
 +common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
  common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
  common-obj-$(CONFIG_NSERIES) += cbus.o
  common-obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
 diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
 index XXXXXXX..XXXXXXX 100644
 --- a/include/hw/arm/allwinner-h3.h
 +++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
  #include "hw/timer/allwinner-a10-pit.h"
  #include "hw/intc/arm_gic.h"
  #include "hw/misc/allwinner-h3-ccu.h"
 +#include "hw/misc/allwinner-h3-sysctrl.h"
  #include "target/arm/cpu.h"
  /**
@@ -XXX,XX +XXX,XX @@ enum {
      AW_H3_SRAM_A1,
      AW_H3_SRAM_A2,
      AW_H3_SRAM_C,
 +    AW_H3_SYSCTRL,
      AW_H3_EHCI0,
      AW_H3_OHCI0,
      AW_H3_EHCI1,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
      const hwaddr *memmap;
      AwA10PITState timer;
      AwH3ClockCtlState ccu;
 +    AwH3SysCtrlState sysctrl;
      GICState gic;
      MemoryRegion sram_a1;
      MemoryRegion sram_a2;
 diff --git a/include/hw/misc/allwinner-h3-sysctrl.h b/include/hw/misc/allwinner-h3-sysctrl.h
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/include/hw/misc/allwinner-h3-sysctrl.h
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner H3 System Control emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#ifndef HW_MISC_ALLWINNER_H3_SYSCTRL_H
 +#define HW_MISC_ALLWINNER_H3_SYSCTRL_H
 +
 +#include "qom/object.h"
 +#include "hw/sysbus.h"
 +
 +/**
 + * @name Constants
 + * @{
 + */
 +
 +/** Highest register address used by System Control device */
 +#define AW_H3_SYSCTRL_REGS_MAXADDR   (0x30)
 +
 +/** Total number of known registers */
 +#define AW_H3_SYSCTRL_REGS_NUM       ((AW_H3_SYSCTRL_REGS_MAXADDR / \
 +                                      sizeof(uint32_t)) + 1)
 +
 +/** @} */
 +
 +/**
 + * @name Object model
 + * @{
 + */
 +
 +#define TYPE_AW_H3_SYSCTRL    "allwinner-h3-sysctrl"
 +#define AW_H3_SYSCTRL(obj) \
 +    OBJECT_CHECK(AwH3SysCtrlState, (obj), TYPE_AW_H3_SYSCTRL)
 +
 +/** @} */
 +
 +/**
 + * Allwinner H3 System Control object instance state
 + */
 +typedef struct AwH3SysCtrlState {
 +    /*< private >*/
 +    SysBusDevice parent_obj;
 +    /*< public >*/
 +
 +    /** Maps I/O registers in physical memory */
 +    MemoryRegion iomem;
 +
 +    /** Array of hardware registers */
 +    uint32_t regs[AW_H3_SYSCTRL_REGS_NUM];
 +
 +} AwH3SysCtrlState;
 +
 +#endif /* HW_MISC_ALLWINNER_H3_SYSCTRL_H */
 diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/allwinner-h3.c
 +++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
      [AW_H3_SRAM_A1]    = 0x00000000,
      [AW_H3_SRAM_A2]    = 0x00044000,
      [AW_H3_SRAM_C]     = 0x00010000,
 +    [AW_H3_SYSCTRL]    = 0x01c00000,
      [AW_H3_EHCI0]      = 0x01c1a000,
      [AW_H3_OHCI0]      = 0x01c1a400,
      [AW_H3_EHCI1]      = 0x01c1b000,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
  } unimplemented[] = {
      { "d-engine",  0x01000000, 4 * MiB },
      { "d-inter",   0x01400000, 128 * KiB },
 -    { "syscon",    0x01c00000, 4 * KiB },
      { "dma",       0x01c02000, 4 * KiB },
      { "nfdc",      0x01c03000, 4 * KiB },
      { "ts",        0x01c06000, 4 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
      sysbus_init_child_obj(obj, "ccu", &s->ccu, sizeof(s->ccu),
                            TYPE_AW_H3_CCU);
 +
 +    sysbus_init_child_obj(obj, "sysctrl", &s->sysctrl, sizeof(s->sysctrl),
 +                          TYPE_AW_H3_SYSCTRL);
  }
  static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
      qdev_init_nofail(DEVICE(&s->ccu));
      sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
 +    /* System Control */
 +    qdev_init_nofail(DEVICE(&s->sysctrl));
 +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sysctrl), 0, s->memmap[AW_H3_SYSCTRL]);
 +
      /* Universal Serial Bus */
      sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
                           qdev_get_gpio_in(DEVICE(&s->gic),
 diff --git a/hw/misc/allwinner-h3-sysctrl.c b/hw/misc/allwinner-h3-sysctrl.c
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/hw/misc/allwinner-h3-sysctrl.c
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner H3 System Control emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#include "qemu/osdep.h"
 +#include "qemu/units.h"
 +#include "hw/sysbus.h"
 +#include "migration/vmstate.h"
 +#include "qemu/log.h"
 +#include "qemu/module.h"
 +#include "hw/misc/allwinner-h3-sysctrl.h"
 +
 +/* System Control register offsets */
 +enum {
 +    REG_VER               = 0x24,  /* Version */
 +    REG_EMAC_PHY_CLK      = 0x30,  /* EMAC PHY Clock */
 +};
 +
 +#define REG_INDEX(offset)   (offset / sizeof(uint32_t))
 +
 +/* System Control register reset values */
 +enum {
 +    REG_VER_RST           = 0x0,
 +    REG_EMAC_PHY_CLK_RST  = 0x58000,
 +};
 +
 +static uint64_t allwinner_h3_sysctrl_read(void *opaque, hwaddr offset,
 +                                          unsigned size)
 +{
 +    const AwH3SysCtrlState *s = AW_H3_SYSCTRL(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    if (idx >= AW_H3_SYSCTRL_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    return s->regs[idx];
 +}
 +
 +static void allwinner_h3_sysctrl_write(void *opaque, hwaddr offset,
 +                                       uint64_t val, unsigned size)
 +{
 +    AwH3SysCtrlState *s = AW_H3_SYSCTRL(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    if (idx >= AW_H3_SYSCTRL_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return;
 +    }
 +
 +    switch (offset) {
 +    case REG_VER:       /* Version */
 +        break;
 +    default:
 +        s->regs[idx] = (uint32_t) val;
 +        break;
 +    }
 +}
 +
 +static const MemoryRegionOps allwinner_h3_sysctrl_ops = {
 +    .read = allwinner_h3_sysctrl_read,
 +    .write = allwinner_h3_sysctrl_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static void allwinner_h3_sysctrl_reset(DeviceState *dev)
 +{
 +    AwH3SysCtrlState *s = AW_H3_SYSCTRL(dev);
 +
 +    /* Set default values for registers */
 +    s->regs[REG_INDEX(REG_VER)] = REG_VER_RST;
 +    s->regs[REG_INDEX(REG_EMAC_PHY_CLK)] = REG_EMAC_PHY_CLK_RST;
 +}
 +
 +static void allwinner_h3_sysctrl_init(Object *obj)
 +{
 +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 +    AwH3SysCtrlState *s = AW_H3_SYSCTRL(obj);
 +
 +    /* Memory mapping */
 +    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_h3_sysctrl_ops, s,
 +                           TYPE_AW_H3_SYSCTRL, 4 * KiB);
 +    sysbus_init_mmio(sbd, &s->iomem);
 +}
 +
 +static const VMStateDescription allwinner_h3_sysctrl_vmstate = {
 +    .name = "allwinner-h3-sysctrl",
 +    .version_id = 1,
 +    .minimum_version_id = 1,
 +    .fields = (VMStateField[]) {
 +        VMSTATE_UINT32_ARRAY(regs, AwH3SysCtrlState, AW_H3_SYSCTRL_REGS_NUM),
 +        VMSTATE_END_OF_LIST()
 +    }
 +};
 +
 +static void allwinner_h3_sysctrl_class_init(ObjectClass *klass, void *data)
 +{
 +    DeviceClass *dc = DEVICE_CLASS(klass);
 +
 +    dc->reset = allwinner_h3_sysctrl_reset;
 +    dc->vmsd = &allwinner_h3_sysctrl_vmstate;
 +}
 +
 +static const TypeInfo allwinner_h3_sysctrl_info = {
 +    .name          = TYPE_AW_H3_SYSCTRL,
 +    .parent        = TYPE_SYS_BUS_DEVICE,
 +    .instance_init = allwinner_h3_sysctrl_init,
 +    .instance_size = sizeof(AwH3SysCtrlState),
 +    .class_init    = allwinner_h3_sysctrl_class_init,
 +};
 +
 +static void allwinner_h3_sysctrl_register(void)
 +{
 +    type_register_static(&allwinner_h3_sysctrl_info);
 +}
 +
 +type_init(allwinner_h3_sysctrl_register)
 --
 .20.1

-New patch
+[PULL 17/36] hw/arm/allwinner: add CPU Configuration module
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
 Various Allwinner System on Chip designs contain multiple processors
 that can be configured and reset using the generic CPU Configuration
 module interface. This commit adds support for the Allwinner CPU
 configuration interface which emulates the following features:
  * CPU reset
  * CPU status
 Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
 Message-id: 20200311221854.30370-7-nieklinnenbank@gmail.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
  hw/misc/Makefile.objs              |   1 +
  include/hw/arm/allwinner-h3.h      |   3 +
  include/hw/misc/allwinner-cpucfg.h |  52 ++++++
  hw/arm/allwinner-h3.c              |   9 +-
  hw/misc/allwinner-cpucfg.c         | 282 +++++++++++++++++++++++++++++
  hw/misc/trace-events               |   5 +
 files changed, 351 insertions(+), 1 deletion(-)
  create mode 100644 include/hw/misc/allwinner-cpucfg.h
  create mode 100644 hw/misc/allwinner-cpucfg.c
 diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/misc/Makefile.objs
 +++ b/hw/misc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_MACIO) += macio/
  common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
 +obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
  common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
  common-obj-$(CONFIG_NSERIES) += cbus.o
 diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
 index XXXXXXX..XXXXXXX 100644
 --- a/include/hw/arm/allwinner-h3.h
 +++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
  #include "hw/timer/allwinner-a10-pit.h"
  #include "hw/intc/arm_gic.h"
  #include "hw/misc/allwinner-h3-ccu.h"
 +#include "hw/misc/allwinner-cpucfg.h"
  #include "hw/misc/allwinner-h3-sysctrl.h"
  #include "target/arm/cpu.h"
@@ -XXX,XX +XXX,XX @@ enum {
      AW_H3_GIC_CPU,
      AW_H3_GIC_HYP,
      AW_H3_GIC_VCPU,
 +    AW_H3_CPUCFG,
      AW_H3_SDRAM
  };
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
      const hwaddr *memmap;
      AwA10PITState timer;
      AwH3ClockCtlState ccu;
 +    AwCpuCfgState cpucfg;
      AwH3SysCtrlState sysctrl;
      GICState gic;
      MemoryRegion sram_a1;
 diff --git a/include/hw/misc/allwinner-cpucfg.h b/include/hw/misc/allwinner-cpucfg.h
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/include/hw/misc/allwinner-cpucfg.h
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner CPU Configuration Module emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#ifndef HW_MISC_ALLWINNER_CPUCFG_H
 +#define HW_MISC_ALLWINNER_CPUCFG_H
 +
 +#include "qom/object.h"
 +#include "hw/sysbus.h"
 +
 +/**
 + * Object model
 + * @{
 + */
 +
 +#define TYPE_AW_CPUCFG   "allwinner-cpucfg"
 +#define AW_CPUCFG(obj) \
 +    OBJECT_CHECK(AwCpuCfgState, (obj), TYPE_AW_CPUCFG)
 +
 +/** @} */
 +
 +/**
 + * Allwinner CPU Configuration Module instance state
 + */
 +typedef struct AwCpuCfgState {
 +    /*< private >*/
 +    SysBusDevice parent_obj;
 +    /*< public >*/
 +
 +    MemoryRegion iomem;
 +    uint32_t gen_ctrl;
 +    uint32_t super_standby;
 +    uint32_t entry_addr;
 +
 +} AwCpuCfgState;
 +
 +#endif /* HW_MISC_ALLWINNER_CPUCFG_H */
 diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/allwinner-h3.c
 +++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
      [AW_H3_GIC_CPU]    = 0x01c82000,
      [AW_H3_GIC_HYP]    = 0x01c84000,
      [AW_H3_GIC_VCPU]   = 0x01c86000,
 +    [AW_H3_CPUCFG]     = 0x01f01c00,
      [AW_H3_SDRAM]      = 0x40000000
  };
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
      { "r_wdog",    0x01f01000, 1 * KiB },
      { "r_prcm",    0x01f01400, 1 * KiB },
      { "r_twd",     0x01f01800, 1 * KiB },
 -    { "r_cpucfg",  0x01f01c00, 1 * KiB },
      { "r_cir-rx",  0x01f02000, 1 * KiB },
      { "r_twi",     0x01f02400, 1 * KiB },
      { "r_uart",    0x01f02800, 1 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
      sysbus_init_child_obj(obj, "sysctrl", &s->sysctrl, sizeof(s->sysctrl),
                            TYPE_AW_H3_SYSCTRL);
 +
 +    sysbus_init_child_obj(obj, "cpucfg", &s->cpucfg, sizeof(s->cpucfg),
 +                          TYPE_AW_CPUCFG);
  }
  static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
      qdev_init_nofail(DEVICE(&s->sysctrl));
      sysbus_mmio_map(SYS_BUS_DEVICE(&s->sysctrl), 0, s->memmap[AW_H3_SYSCTRL]);
 +    /* CPU Configuration */
 +    qdev_init_nofail(DEVICE(&s->cpucfg));
 +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->cpucfg), 0, s->memmap[AW_H3_CPUCFG]);
 +
      /* Universal Serial Bus */
      sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
                           qdev_get_gpio_in(DEVICE(&s->gic),
 diff --git a/hw/misc/allwinner-cpucfg.c b/hw/misc/allwinner-cpucfg.c
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/hw/misc/allwinner-cpucfg.c
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner CPU Configuration Module emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#include "qemu/osdep.h"
 +#include "qemu/units.h"
 +#include "hw/sysbus.h"
 +#include "migration/vmstate.h"
 +#include "qemu/log.h"
 +#include "qemu/module.h"
 +#include "qemu/error-report.h"
 +#include "qemu/timer.h"
 +#include "hw/core/cpu.h"
 +#include "target/arm/arm-powerctl.h"
 +#include "target/arm/cpu.h"
 +#include "hw/misc/allwinner-cpucfg.h"
 +#include "trace.h"
 +
 +/* CPUCFG register offsets */
 +enum {
 +    REG_CPUS_RST_CTRL       = 0x0000, /* CPUs Reset Control */
 +    REG_CPU0_RST_CTRL       = 0x0040, /* CPU#0 Reset Control */
 +    REG_CPU0_CTRL           = 0x0044, /* CPU#0 Control */
 +    REG_CPU0_STATUS         = 0x0048, /* CPU#0 Status */
 +    REG_CPU1_RST_CTRL       = 0x0080, /* CPU#1 Reset Control */
 +    REG_CPU1_CTRL           = 0x0084, /* CPU#1 Control */
 +    REG_CPU1_STATUS         = 0x0088, /* CPU#1 Status */
 +    REG_CPU2_RST_CTRL       = 0x00C0, /* CPU#2 Reset Control */
 +    REG_CPU2_CTRL           = 0x00C4, /* CPU#2 Control */
 +    REG_CPU2_STATUS         = 0x00C8, /* CPU#2 Status */
 +    REG_CPU3_RST_CTRL       = 0x0100, /* CPU#3 Reset Control */
 +    REG_CPU3_CTRL           = 0x0104, /* CPU#3 Control */
 +    REG_CPU3_STATUS         = 0x0108, /* CPU#3 Status */
 +    REG_CPU_SYS_RST         = 0x0140, /* CPU System Reset */
 +    REG_CLK_GATING          = 0x0144, /* CPU Clock Gating */
 +    REG_GEN_CTRL            = 0x0184, /* General Control */
 +    REG_SUPER_STANDBY       = 0x01A0, /* Super Standby Flag */
 +    REG_ENTRY_ADDR          = 0x01A4, /* Reset Entry Address */
 +    REG_DBG_EXTERN          = 0x01E4, /* Debug External */
 +    REG_CNT64_CTRL          = 0x0280, /* 64-bit Counter Control */
 +    REG_CNT64_LOW           = 0x0284, /* 64-bit Counter Low */
 +    REG_CNT64_HIGH          = 0x0288, /* 64-bit Counter High */
 +};
 +
 +/* CPUCFG register flags */
 +enum {
 +    CPUX_RESET_RELEASED     = ((1 << 1) | (1 << 0)),
 +    CPUX_STATUS_SMP         = (1 << 0),
 +    CPU_SYS_RESET_RELEASED  = (1 << 0),
 +    CLK_GATING_ENABLE       = ((1 << 8) | 0xF),
 +};
 +
 +/* CPUCFG register reset values */
 +enum {
 +    REG_CLK_GATING_RST      = 0x0000010F,
 +    REG_GEN_CTRL_RST        = 0x00000020,
 +    REG_SUPER_STANDBY_RST   = 0x0,
 +    REG_CNT64_CTRL_RST      = 0x0,
 +};
 +
 +/* CPUCFG constants */
 +enum {
 +    CPU_EXCEPTION_LEVEL_ON_RESET = 3, /* EL3 */
 +};
 +
 +static void allwinner_cpucfg_cpu_reset(AwCpuCfgState *s, uint8_t cpu_id)
 +{
 +    int ret;
 +
 +    trace_allwinner_cpucfg_cpu_reset(cpu_id, s->entry_addr);
 +
 +    ARMCPU *target_cpu = ARM_CPU(arm_get_cpu_by_id(cpu_id));
 +    if (!target_cpu) {
 +        /*
 +         * Called with a bogus value for cpu_id. Guest error will
 +         * already have been logged, we can simply return here.
 +         */
 +        return;
 +    }
 +    bool target_aa64 = arm_feature(&target_cpu->env, ARM_FEATURE_AARCH64);
 +
 +    ret = arm_set_cpu_on(cpu_id, s->entry_addr, 0,
 +                         CPU_EXCEPTION_LEVEL_ON_RESET, target_aa64);
 +    if (ret != QEMU_ARM_POWERCTL_RET_SUCCESS) {
 +        error_report("%s: failed to bring up CPU %d: err %d",
 +                     __func__, cpu_id, ret);
 +        return;
 +    }
 +}
 +
 +static uint64_t allwinner_cpucfg_read(void *opaque, hwaddr offset,
 +                                      unsigned size)
 +{
 +    const AwCpuCfgState *s = AW_CPUCFG(opaque);
 +    uint64_t val = 0;
 +
 +    switch (offset) {
 +    case REG_CPUS_RST_CTRL:     /* CPUs Reset Control */
 +    case REG_CPU_SYS_RST:       /* CPU System Reset */
 +        val = CPU_SYS_RESET_RELEASED;
 +        break;
 +    case REG_CPU0_RST_CTRL:     /* CPU#0 Reset Control */
 +    case REG_CPU1_RST_CTRL:     /* CPU#1 Reset Control */
 +    case REG_CPU2_RST_CTRL:     /* CPU#2 Reset Control */
 +    case REG_CPU3_RST_CTRL:     /* CPU#3 Reset Control */
 +        val = CPUX_RESET_RELEASED;
 +        break;
 +    case REG_CPU0_CTRL:         /* CPU#0 Control */
 +    case REG_CPU1_CTRL:         /* CPU#1 Control */
 +    case REG_CPU2_CTRL:         /* CPU#2 Control */
 +    case REG_CPU3_CTRL:         /* CPU#3 Control */
 +        val = 0;
 +        break;
 +    case REG_CPU0_STATUS:       /* CPU#0 Status */
 +    case REG_CPU1_STATUS:       /* CPU#1 Status */
 +    case REG_CPU2_STATUS:       /* CPU#2 Status */
 +    case REG_CPU3_STATUS:       /* CPU#3 Status */
 +        val = CPUX_STATUS_SMP;
 +        break;
 +    case REG_CLK_GATING:        /* CPU Clock Gating */
 +        val = CLK_GATING_ENABLE;
 +        break;
 +    case REG_GEN_CTRL:          /* General Control */
 +        val = s->gen_ctrl;
 +        break;
 +    case REG_SUPER_STANDBY:     /* Super Standby Flag */
 +        val = s->super_standby;
 +        break;
 +    case REG_ENTRY_ADDR:        /* Reset Entry Address */
 +        val = s->entry_addr;
 +        break;
 +    case REG_DBG_EXTERN:        /* Debug External */
 +    case REG_CNT64_CTRL:        /* 64-bit Counter Control */
 +    case REG_CNT64_LOW:         /* 64-bit Counter Low */
 +    case REG_CNT64_HIGH:        /* 64-bit Counter High */
 +        qemu_log_mask(LOG_UNIMP, "%s: unimplemented register at 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        break;
 +    default:
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        break;
 +    }
 +
 +    trace_allwinner_cpucfg_read(offset, val, size);
 +
 +    return val;
 +}
 +
 +static void allwinner_cpucfg_write(void *opaque, hwaddr offset,
 +                                   uint64_t val, unsigned size)
 +{
 +    AwCpuCfgState *s = AW_CPUCFG(opaque);
 +
 +    trace_allwinner_cpucfg_write(offset, val, size);
 +
 +    switch (offset) {
 +    case REG_CPUS_RST_CTRL:     /* CPUs Reset Control */
 +    case REG_CPU_SYS_RST:       /* CPU System Reset */
 +        break;
 +    case REG_CPU0_RST_CTRL:     /* CPU#0 Reset Control */
 +    case REG_CPU1_RST_CTRL:     /* CPU#1 Reset Control */
 +    case REG_CPU2_RST_CTRL:     /* CPU#2 Reset Control */
 +    case REG_CPU3_RST_CTRL:     /* CPU#3 Reset Control */
 +        if (val) {
 +            allwinner_cpucfg_cpu_reset(s, (offset - REG_CPU0_RST_CTRL) >> 6);
 +        }
 +        break;
 +    case REG_CPU0_CTRL:         /* CPU#0 Control */
 +    case REG_CPU1_CTRL:         /* CPU#1 Control */
 +    case REG_CPU2_CTRL:         /* CPU#2 Control */
 +    case REG_CPU3_CTRL:         /* CPU#3 Control */
 +    case REG_CPU0_STATUS:       /* CPU#0 Status */
 +    case REG_CPU1_STATUS:       /* CPU#1 Status */
 +    case REG_CPU2_STATUS:       /* CPU#2 Status */
 +    case REG_CPU3_STATUS:       /* CPU#3 Status */
 +    case REG_CLK_GATING:        /* CPU Clock Gating */
 +        break;
 +    case REG_GEN_CTRL:          /* General Control */
 +        s->gen_ctrl = val;
 +        break;
 +    case REG_SUPER_STANDBY:     /* Super Standby Flag */
 +        s->super_standby = val;
 +        break;
 +    case REG_ENTRY_ADDR:        /* Reset Entry Address */
 +        s->entry_addr = val;
 +        break;
 +    case REG_DBG_EXTERN:        /* Debug External */
 +    case REG_CNT64_CTRL:        /* 64-bit Counter Control */
 +    case REG_CNT64_LOW:         /* 64-bit Counter Low */
 +    case REG_CNT64_HIGH:        /* 64-bit Counter High */
 +        qemu_log_mask(LOG_UNIMP, "%s: unimplemented register at 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        break;
 +    default:
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        break;
 +    }
 +}
 +
 +static const MemoryRegionOps allwinner_cpucfg_ops = {
 +    .read = allwinner_cpucfg_read,
 +    .write = allwinner_cpucfg_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static void allwinner_cpucfg_reset(DeviceState *dev)
 +{
 +    AwCpuCfgState *s = AW_CPUCFG(dev);
 +
 +    /* Set default values for registers */
 +    s->gen_ctrl = REG_GEN_CTRL_RST;
 +    s->super_standby = REG_SUPER_STANDBY_RST;
 +    s->entry_addr = 0;
 +}
 +
 +static void allwinner_cpucfg_init(Object *obj)
 +{
 +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 +    AwCpuCfgState *s = AW_CPUCFG(obj);
 +
 +    /* Memory mapping */
 +    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_cpucfg_ops, s,
 +                          TYPE_AW_CPUCFG, 1 * KiB);
 +    sysbus_init_mmio(sbd, &s->iomem);
 +}
 +
 +static const VMStateDescription allwinner_cpucfg_vmstate = {
 +    .name = "allwinner-cpucfg",
 +    .version_id = 1,
 +    .minimum_version_id = 1,
 +    .fields = (VMStateField[]) {
 +        VMSTATE_UINT32(gen_ctrl, AwCpuCfgState),
 +        VMSTATE_UINT32(super_standby, AwCpuCfgState),
 +        VMSTATE_UINT32(entry_addr, AwCpuCfgState),
 +        VMSTATE_END_OF_LIST()
 +    }
 +};
 +
 +static void allwinner_cpucfg_class_init(ObjectClass *klass, void *data)
 +{
 +    DeviceClass *dc = DEVICE_CLASS(klass);
 +
 +    dc->reset = allwinner_cpucfg_reset;
 +    dc->vmsd = &allwinner_cpucfg_vmstate;
 +}
 +
 +static const TypeInfo allwinner_cpucfg_info = {
 +    .name          = TYPE_AW_CPUCFG,
 +    .parent        = TYPE_SYS_BUS_DEVICE,
 +    .instance_init = allwinner_cpucfg_init,
 +    .instance_size = sizeof(AwCpuCfgState),
 +    .class_init    = allwinner_cpucfg_class_init,
 +};
 +
 +static void allwinner_cpucfg_register(void)
 +{
 +    type_register_static(&allwinner_cpucfg_info);
 +}
 +
 +type_init(allwinner_cpucfg_register)
 diff --git a/hw/misc/trace-events b/hw/misc/trace-events
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/misc/trace-events
 +++ b/hw/misc/trace-events
@@ -XXX,XX +XXX,XX @@
  # See docs/devel/tracing.txt for syntax documentation.
 +# allwinner-cpucfg.c
 +allwinner_cpucfg_cpu_reset(uint8_t cpu_id, uint32_t reset_addr) "id %u, reset_addr 0x%" PRIu32
 +allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +
  # eccmemctl.c
  ecc_mem_writel_mer(uint32_t val) "Write memory enable 0x%08x"
  ecc_mem_writel_mdr(uint32_t val) "Write memory delay 0x%08x"
 --
 .20.1

-New patch
+[PULL 18/36] hw/arm/allwinner: add Security Identifier device
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
 The Security Identifier device found in various Allwinner System on Chip
 designs gives applications a per-board unique identifier. This commit
 adds support for the Allwinner Security Identifier using a 128-bit
 UUID value as input.
 Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
 Message-id: 20200311221854.30370-8-nieklinnenbank@gmail.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
  hw/misc/Makefile.objs           |   1 +
  include/hw/arm/allwinner-h3.h   |   3 +
  include/hw/misc/allwinner-sid.h |  60 ++++++++++++
  hw/arm/allwinner-h3.c           |  11 ++-
  hw/arm/orangepi.c               |   8 ++
  hw/misc/allwinner-sid.c         | 168 ++++++++++++++++++++++++++++++++
  hw/misc/trace-events            |   4 +
 files changed, 254 insertions(+), 1 deletion(-)
  create mode 100644 include/hw/misc/allwinner-sid.h
  create mode 100644 hw/misc/allwinner-sid.c
 diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/misc/Makefile.objs
 +++ b/hw/misc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
  obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
 +common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sid.o
  common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
  common-obj-$(CONFIG_NSERIES) += cbus.o
  common-obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
 diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
 index XXXXXXX..XXXXXXX 100644
 --- a/include/hw/arm/allwinner-h3.h
 +++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
  #include "hw/misc/allwinner-h3-ccu.h"
  #include "hw/misc/allwinner-cpucfg.h"
  #include "hw/misc/allwinner-h3-sysctrl.h"
 +#include "hw/misc/allwinner-sid.h"
  #include "target/arm/cpu.h"
  /**
@@ -XXX,XX +XXX,XX @@ enum {
      AW_H3_SRAM_A2,
      AW_H3_SRAM_C,
      AW_H3_SYSCTRL,
 +    AW_H3_SID,
      AW_H3_EHCI0,
      AW_H3_OHCI0,
      AW_H3_EHCI1,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
      AwH3ClockCtlState ccu;
      AwCpuCfgState cpucfg;
      AwH3SysCtrlState sysctrl;
 +    AwSidState sid;
      GICState gic;
      MemoryRegion sram_a1;
      MemoryRegion sram_a2;
 diff --git a/include/hw/misc/allwinner-sid.h b/include/hw/misc/allwinner-sid.h
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/include/hw/misc/allwinner-sid.h
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner Security ID emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#ifndef HW_MISC_ALLWINNER_SID_H
 +#define HW_MISC_ALLWINNER_SID_H
 +
 +#include "qom/object.h"
 +#include "hw/sysbus.h"
 +#include "qemu/uuid.h"
 +
 +/**
 + * Object model
 + * @{
 + */
 +
 +#define TYPE_AW_SID    "allwinner-sid"
 +#define AW_SID(obj) \
 +    OBJECT_CHECK(AwSidState, (obj), TYPE_AW_SID)
 +
 +/** @} */
 +
 +/**
 + * Allwinner Security ID object instance state
 + */
 +typedef struct AwSidState {
 +    /*< private >*/
 +    SysBusDevice parent_obj;
 +    /*< public >*/
 +
 +    /** Maps I/O registers in physical memory */
 +    MemoryRegion iomem;
 +
 +    /** Control register defines how and what to read */
 +    uint32_t control;
 +
 +    /** RdKey register contains the data retrieved by the device */
 +    uint32_t rdkey;
 +
 +    /** Stores the emulated device identifier */
 +    QemuUUID identifier;
 +
 +} AwSidState;
 +
 +#endif /* HW_MISC_ALLWINNER_SID_H */
 diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/allwinner-h3.c
 +++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
      [AW_H3_SRAM_A2]    = 0x00044000,
      [AW_H3_SRAM_C]     = 0x00010000,
      [AW_H3_SYSCTRL]    = 0x01c00000,
 +    [AW_H3_SID]        = 0x01c14000,
      [AW_H3_EHCI0]      = 0x01c1a000,
      [AW_H3_OHCI0]      = 0x01c1a400,
      [AW_H3_EHCI1]      = 0x01c1b000,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
      { "mmc0",      0x01c0f000, 4 * KiB },
      { "mmc1",      0x01c10000, 4 * KiB },
      { "mmc2",      0x01c11000, 4 * KiB },
 -    { "sid",       0x01c14000, 1 * KiB },
      { "crypto",    0x01c15000, 4 * KiB },
      { "msgbox",    0x01c17000, 4 * KiB },
      { "spinlock",  0x01c18000, 4 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
      sysbus_init_child_obj(obj, "cpucfg", &s->cpucfg, sizeof(s->cpucfg),
                            TYPE_AW_CPUCFG);
 +
 +    sysbus_init_child_obj(obj, "sid", &s->sid, sizeof(s->sid),
 +                          TYPE_AW_SID);
 +    object_property_add_alias(obj, "identifier", OBJECT(&s->sid),
 +                              "identifier", &error_abort);
  }
  static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
      qdev_init_nofail(DEVICE(&s->cpucfg));
      sysbus_mmio_map(SYS_BUS_DEVICE(&s->cpucfg), 0, s->memmap[AW_H3_CPUCFG]);
 +    /* Security Identifier */
 +    qdev_init_nofail(DEVICE(&s->sid));
 +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sid), 0, s->memmap[AW_H3_SID]);
 +
      /* Universal Serial Bus */
      sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
                           qdev_get_gpio_in(DEVICE(&s->gic),
 diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/orangepi.c
 +++ b/hw/arm/orangepi.c
@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
      object_property_set_int(OBJECT(h3), 24 * 1000 * 1000, "clk1-freq",
                              &error_abort);
 +    /* Setup SID properties. Currently using a default fixed SID identifier. */
 +    if (qemu_uuid_is_null(&h3->sid.identifier)) {
 +        qdev_prop_set_string(DEVICE(h3), "identifier",
 +                             "02c00081-1111-2222-3333-000044556677");
 +    } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
 +        warn_report("Security Identifier value does not include H3 prefix");
 +    }
 +
      /* Mark H3 object realized */
      object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
 diff --git a/hw/misc/allwinner-sid.c b/hw/misc/allwinner-sid.c
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/hw/misc/allwinner-sid.c
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner Security ID emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#include "qemu/osdep.h"
 +#include "qemu/units.h"
 +#include "hw/sysbus.h"
 +#include "migration/vmstate.h"
 +#include "qemu/log.h"
 +#include "qemu/module.h"
 +#include "qemu/guest-random.h"
 +#include "qapi/error.h"
 +#include "hw/qdev-properties.h"
 +#include "hw/misc/allwinner-sid.h"
 +#include "trace.h"
 +
 +/* SID register offsets */
 +enum {
 +    REG_PRCTL = 0x40,   /* Control */
 +    REG_RDKEY = 0x60,   /* Read Key */
 +};
 +
 +/* SID register flags */
 +enum {
 +    REG_PRCTL_WRITE   = 0x0002, /* Unknown write flag */
 +    REG_PRCTL_OP_LOCK = 0xAC00, /* Lock operation */
 +};
 +
 +static uint64_t allwinner_sid_read(void *opaque, hwaddr offset,
 +                                   unsigned size)
 +{
 +    const AwSidState *s = AW_SID(opaque);
 +    uint64_t val = 0;
 +
 +    switch (offset) {
 +    case REG_PRCTL:    /* Control */
 +        val = s->control;
 +        break;
 +    case REG_RDKEY:    /* Read Key */
 +        val = s->rdkey;
 +        break;
 +    default:
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    trace_allwinner_sid_read(offset, val, size);
 +
 +    return val;
 +}
 +
 +static void allwinner_sid_write(void *opaque, hwaddr offset,
 +                                uint64_t val, unsigned size)
 +{
 +    AwSidState *s = AW_SID(opaque);
 +
 +    trace_allwinner_sid_write(offset, val, size);
 +
 +    switch (offset) {
 +    case REG_PRCTL:    /* Control */
 +        s->control = val;
 +
 +        if ((s->control & REG_PRCTL_OP_LOCK) &&
 +            (s->control & REG_PRCTL_WRITE)) {
 +            uint32_t id = s->control >> 16;
 +
 +            if (id <= sizeof(QemuUUID) - sizeof(s->rdkey)) {
 +                s->rdkey = ldl_be_p(&s->identifier.data[id]);
 +            }
 +        }
 +        s->control &= ~REG_PRCTL_WRITE;
 +        break;
 +    case REG_RDKEY:    /* Read Key */
 +        break;
 +    default:
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        break;
 +    }
 +}
 +
 +static const MemoryRegionOps allwinner_sid_ops = {
 +    .read = allwinner_sid_read,
 +    .write = allwinner_sid_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static void allwinner_sid_reset(DeviceState *dev)
 +{
 +    AwSidState *s = AW_SID(dev);
 +
 +    /* Set default values for registers */
 +    s->control = 0;
 +    s->rdkey = 0;
 +}
 +
 +static void allwinner_sid_init(Object *obj)
 +{
 +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 +    AwSidState *s = AW_SID(obj);
 +
 +    /* Memory mapping */
 +    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_sid_ops, s,
 +                           TYPE_AW_SID, 1 * KiB);
 +    sysbus_init_mmio(sbd, &s->iomem);
 +}
 +
 +static Property allwinner_sid_properties[] = {
 +    DEFINE_PROP_UUID_NODEFAULT("identifier", AwSidState, identifier),
 +    DEFINE_PROP_END_OF_LIST()
 +};
 +
 +static const VMStateDescription allwinner_sid_vmstate = {
 +    .name = "allwinner-sid",
 +    .version_id = 1,
 +    .minimum_version_id = 1,
 +    .fields = (VMStateField[]) {
 +        VMSTATE_UINT32(control, AwSidState),
 +        VMSTATE_UINT32(rdkey, AwSidState),
 +        VMSTATE_UINT8_ARRAY_V(identifier.data, AwSidState, sizeof(QemuUUID), 1),
 +        VMSTATE_END_OF_LIST()
 +    }
 +};
 +
 +static void allwinner_sid_class_init(ObjectClass *klass, void *data)
 +{
 +    DeviceClass *dc = DEVICE_CLASS(klass);
 +
 +    dc->reset = allwinner_sid_reset;
 +    dc->vmsd = &allwinner_sid_vmstate;
 +    device_class_set_props(dc, allwinner_sid_properties);
 +}
 +
 +static const TypeInfo allwinner_sid_info = {
 +    .name          = TYPE_AW_SID,
 +    .parent        = TYPE_SYS_BUS_DEVICE,
 +    .instance_init = allwinner_sid_init,
 +    .instance_size = sizeof(AwSidState),
 +    .class_init    = allwinner_sid_class_init,
 +};
 +
 +static void allwinner_sid_register(void)
 +{
 +    type_register_static(&allwinner_sid_info);
 +}
 +
 +type_init(allwinner_sid_register)
 diff --git a/hw/misc/trace-events b/hw/misc/trace-events
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/misc/trace-events
 +++ b/hw/misc/trace-events
@@ -XXX,XX +XXX,XX @@ allwinner_cpucfg_cpu_reset(uint8_t cpu_id, uint32_t reset_addr) "id %u, reset_ad
  allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
  allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +# allwinner-sid.c
 +allwinner_sid_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_sid_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +
  # eccmemctl.c
  ecc_mem_writel_mer(uint32_t val) "Write memory enable 0x%08x"
  ecc_mem_writel_mdr(uint32_t val) "Write memory delay 0x%08x"
 --
 .20.1

-New patch
+[PULL 19/36] hw/arm/allwinner: add SD/MMC host controller
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
+The Allwinner System on Chip families sun4i and above contain
+an integrated storage controller for Secure Digital (SD) and
+Multi Media Card (MMC) interfaces. This commit adds support
+for the Allwinner SD/MMC storage controller with the following
+emulated features:
+ * DMA transfers
+ * Direct FIFO I/O
+ * Short/Long format command responses
+ * Auto-Stop command (CMD12)
+ * Insert & remove card detection
+The following boards are extended with the SD host controller:
+ * Cubieboard (hw/arm/cubieboard.c)
+ * Orange Pi PC (hw/arm/orangepi.c)
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Message-id: 20200311221854.30370-9-nieklinnenbank@gmail.com
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ hw/sd/Makefile.objs              |   1 +
+ include/hw/arm/allwinner-a10.h   |   2 +
+ include/hw/arm/allwinner-h3.h    |   3 +
+ include/hw/sd/allwinner-sdhost.h | 135 +++++
+ hw/arm/allwinner-a10.c           |  11 +
+ hw/arm/allwinner-h3.c            |  15 +-
+ hw/arm/cubieboard.c              |  15 +
+ hw/arm/orangepi.c                |  16 +
+ hw/sd/allwinner-sdhost.c         | 854 +++++++++++++++++++++++++++++++
+ hw/arm/Kconfig                   |   1 +
+ hw/sd/trace-events               |   7 +
+files changed, 1059 insertions(+), 1 deletion(-)
+ create mode 100644 include/hw/sd/allwinner-sdhost.h
+ create mode 100644 hw/sd/allwinner-sdhost.c
+diff --git a/hw/sd/Makefile.objs b/hw/sd/Makefile.objs
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/sd/Makefile.objs
++++ b/hw/sd/Makefile.objs
+@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_SD) += sd.o core.o sdmmc-internal.o
+ common-obj-$(CONFIG_SDHCI) += sdhci.o
+ common-obj-$(CONFIG_SDHCI_PCI) += sdhci-pci.o
++common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sdhost.o
+ common-obj-$(CONFIG_MILKYMIST) += milkymist-memcard.o
+ common-obj-$(CONFIG_OMAP) += omap_mmc.o
+ common-obj-$(CONFIG_PXA2XX) += pxa2xx_mmci.o
+diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/allwinner-a10.h
++++ b/include/hw/arm/allwinner-a10.h
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/timer/allwinner-a10-pit.h"
+ #include "hw/intc/allwinner-a10-pic.h"
+ #include "hw/net/allwinner_emac.h"
++#include "hw/sd/allwinner-sdhost.h"
+ #include "hw/ide/ahci.h"
+ #include "hw/usb/hcd-ohci.h"
+ #include "hw/usb/hcd-ehci.h"
+@@ -XXX,XX +XXX,XX @@ typedef struct AwA10State {
+     AwA10PICState intc;
+     AwEmacState emac;
+     AllwinnerAHCIState sata;
++    AwSdHostState mmc0;
+     MemoryRegion sram_a;
+     EHCISysBusState ehci[AW_A10_NUM_USB];
+     OHCISysBusState ohci[AW_A10_NUM_USB];
+diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/allwinner-h3.h
++++ b/include/hw/arm/allwinner-h3.h
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/misc/allwinner-cpucfg.h"
+ #include "hw/misc/allwinner-h3-sysctrl.h"
+ #include "hw/misc/allwinner-sid.h"
++#include "hw/sd/allwinner-sdhost.h"
+ #include "target/arm/cpu.h"
+ /**
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_SRAM_A2,
+     AW_H3_SRAM_C,
+     AW_H3_SYSCTRL,
++    AW_H3_MMC0,
+     AW_H3_SID,
+     AW_H3_EHCI0,
+     AW_H3_OHCI0,
+@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
+     AwCpuCfgState cpucfg;
+     AwH3SysCtrlState sysctrl;
+     AwSidState sid;
++    AwSdHostState mmc0;
+     GICState gic;
+     MemoryRegion sram_a1;
+     MemoryRegion sram_a2;
+diff --git a/include/hw/sd/allwinner-sdhost.h b/include/hw/sd/allwinner-sdhost.h
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/include/hw/sd/allwinner-sdhost.h
+@@ -XXX,XX +XXX,XX @@
++/*
++ * Allwinner (sun4i and above) SD Host Controller emulation
++ *
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
++ *
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation, either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef HW_SD_ALLWINNER_SDHOST_H
++#define HW_SD_ALLWINNER_SDHOST_H
++
++#include "qom/object.h"
++#include "hw/sysbus.h"
++#include "hw/sd/sd.h"
++
++/**
++ * Object model types
++ * @{
++ */
++
++/** Generic Allwinner SD Host Controller (abstract) */
++#define TYPE_AW_SDHOST "allwinner-sdhost"
++
++/** Allwinner sun4i family (A10, A12) */
++#define TYPE_AW_SDHOST_SUN4I TYPE_AW_SDHOST "-sun4i"
++
++/** Allwinner sun5i family and newer (A13, H2+, H3, etc) */
++#define TYPE_AW_SDHOST_SUN5I TYPE_AW_SDHOST "-sun5i"
++
++/** @} */
++
++/**
++ * Object model macros
++ * @{
++ */
++
++#define AW_SDHOST(obj) \
++    OBJECT_CHECK(AwSdHostState, (obj), TYPE_AW_SDHOST)
++#define AW_SDHOST_CLASS(klass) \
++     OBJECT_CLASS_CHECK(AwSdHostClass, (klass), TYPE_AW_SDHOST)
++#define AW_SDHOST_GET_CLASS(obj) \
++     OBJECT_GET_CLASS(AwSdHostClass, (obj), TYPE_AW_SDHOST)
++
++/** @} */
++
++/**
++ * Allwinner SD Host Controller object instance state.
++ */
++typedef struct AwSdHostState {
++    /*< private >*/
++    SysBusDevice busdev;
++    /*< public >*/
++
++    /** Secure Digital (SD) bus, which connects to SD card (if present) */
++    SDBus sdbus;
++
++    /** Maps I/O registers in physical memory */
++    MemoryRegion iomem;
++
++    /** Interrupt output signal to notify CPU */
++    qemu_irq irq;
++
++    /** Number of bytes left in current DMA transfer */
++    uint32_t transfer_cnt;
++
++    /**
++     * @name Hardware Registers
++     * @{
++     */
++
++    uint32_t global_ctl;        /**< Global Control */
++    uint32_t clock_ctl;         /**< Clock Control */
++    uint32_t timeout;           /**< Timeout */
++    uint32_t bus_width;         /**< Bus Width */
++    uint32_t block_size;        /**< Block Size */
++    uint32_t byte_count;        /**< Byte Count */
++
++    uint32_t command;           /**< Command */
++    uint32_t command_arg;       /**< Command Argument */
++    uint32_t response[4];       /**< Command Response */
++
++    uint32_t irq_mask;          /**< Interrupt Mask */
++    uint32_t irq_status;        /**< Raw Interrupt Status */
++    uint32_t status;            /**< Status */
++
++    uint32_t fifo_wlevel;       /**< FIFO Water Level */
++    uint32_t fifo_func_sel;     /**< FIFO Function Select */
++    uint32_t debug_enable;      /**< Debug Enable */
++    uint32_t auto12_arg;        /**< Auto Command 12 Argument */
++    uint32_t newtiming_set;     /**< SD New Timing Set */
++    uint32_t newtiming_debug;   /**< SD New Timing Debug */
++    uint32_t hardware_rst;      /**< Hardware Reset */
++    uint32_t dmac;              /**< Internal DMA Controller Control */
++    uint32_t desc_base;         /**< Descriptor List Base Address */
++    uint32_t dmac_status;       /**< Internal DMA Controller Status */
++    uint32_t dmac_irq;          /**< Internal DMA Controller IRQ Enable */
++    uint32_t card_threshold;    /**< Card Threshold Control */
++    uint32_t startbit_detect;   /**< eMMC DDR Start Bit Detection Control */
++    uint32_t response_crc;      /**< Response CRC */
++    uint32_t data_crc[8];       /**< Data CRC */
++    uint32_t status_crc;        /**< Status CRC */
++
++    /** @} */
++
++} AwSdHostState;
++
++/**
++ * Allwinner SD Host Controller class-level struct.
++ *
++ * This struct is filled by each sunxi device specific code
++ * such that the generic code can use this struct to support
++ * all devices.
++ */
++typedef struct AwSdHostClass {
++    /*< private >*/
++    SysBusDeviceClass parent_class;
++    /*< public >*/
++
++    /** Maximum buffer size in bytes per DMA descriptor */
++    size_t max_desc_size;
++
++} AwSdHostClass;
++
++#endif /* HW_SD_ALLWINNER_SDHOST_H */
+diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/allwinner-a10.c
++++ b/hw/arm/allwinner-a10.c
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/boards.h"
+ #include "hw/usb/hcd-ohci.h"
++#define AW_A10_MMC0_BASE        0x01c0f000
+ #define AW_A10_PIC_REG_BASE     0x01c20400
+ #define AW_A10_PIT_REG_BASE     0x01c20c00
+ #define AW_A10_UART0_REG_BASE   0x01c28000
+@@ -XXX,XX +XXX,XX @@ static void aw_a10_init(Object *obj)
+                                   sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI);
+         }
+     }
++
++    sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
++                          TYPE_AW_SDHOST_SUN4I);
+ }
+ static void aw_a10_realize(DeviceState *dev, Error **errp)
+@@ -XXX,XX +XXX,XX @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
+                                qdev_get_gpio_in(dev, 64 + i));
+         }
+     }
++
++    /* SD/MMC */
++    qdev_init_nofail(DEVICE(&s->mmc0));
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, AW_A10_MMC0_BASE);
++    sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0, qdev_get_gpio_in(dev, 32));
++    object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
++                              "sd-bus", &error_abort);
+ }
+ static void aw_a10_class_init(ObjectClass *oc, void *data)
+diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/allwinner-h3.c
++++ b/hw/arm/allwinner-h3.c
+@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
+     [AW_H3_SRAM_A2]    = 0x00044000,
+     [AW_H3_SRAM_C]     = 0x00010000,
+     [AW_H3_SYSCTRL]    = 0x01c00000,
++    [AW_H3_MMC0]       = 0x01c0f000,
+     [AW_H3_SID]        = 0x01c14000,
+     [AW_H3_EHCI0]      = 0x01c1a000,
+     [AW_H3_OHCI0]      = 0x01c1a400,
+@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
+     { "lcd0",      0x01c0c000, 4 * KiB },
+     { "lcd1",      0x01c0d000, 4 * KiB },
+     { "ve",        0x01c0e000, 4 * KiB },
+-    { "mmc0",      0x01c0f000, 4 * KiB },
+     { "mmc1",      0x01c10000, 4 * KiB },
+     { "mmc2",      0x01c11000, 4 * KiB },
+     { "crypto",    0x01c15000, 4 * KiB },
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_GIC_SPI_UART3     =  3,
+     AW_H3_GIC_SPI_TIMER0    = 18,
+     AW_H3_GIC_SPI_TIMER1    = 19,
++    AW_H3_GIC_SPI_MMC0      = 60,
+     AW_H3_GIC_SPI_EHCI0     = 72,
+     AW_H3_GIC_SPI_OHCI0     = 73,
+     AW_H3_GIC_SPI_EHCI1     = 74,
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
+                           TYPE_AW_SID);
+     object_property_add_alias(obj, "identifier", OBJECT(&s->sid),
+                               "identifier", &error_abort);
++
++    sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
++                          TYPE_AW_SDHOST_SUN5I);
+ }
+ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
+     qdev_init_nofail(DEVICE(&s->sid));
+     sysbus_mmio_map(SYS_BUS_DEVICE(&s->sid), 0, s->memmap[AW_H3_SID]);
++    /* SD/MMC */
++    qdev_init_nofail(DEVICE(&s->mmc0));
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, s->memmap[AW_H3_MMC0]);
++    sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0,
++                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_MMC0));
++
++    object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
++                              "sd-bus", &error_abort);
++
+     /* Universal Serial Bus */
+     sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
+                          qdev_get_gpio_in(DEVICE(&s->gic),
+diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/cubieboard.c
++++ b/hw/arm/cubieboard.c
+@@ -XXX,XX +XXX,XX @@
+ #include "sysemu/sysemu.h"
+ #include "hw/sysbus.h"
+ #include "hw/boards.h"
++#include "hw/qdev-properties.h"
+ #include "hw/arm/allwinner-a10.h"
+ static struct arm_boot_info cubieboard_binfo = {
+@@ -XXX,XX +XXX,XX @@ static void cubieboard_init(MachineState *machine)
+ {
+     AwA10State *a10;
+     Error *err = NULL;
++    DriveInfo *di;
++    BlockBackend *blk;
++    BusState *bus;
++    DeviceState *carddev;
+     /* BIOS is not supported by this board */
+     if (bios_name) {
+@@ -XXX,XX +XXX,XX @@ static void cubieboard_init(MachineState *machine)
+         exit(1);
+     }
++    /* Retrieve SD bus */
++    di = drive_get_next(IF_SD);
++    blk = di ? blk_by_legacy_dinfo(di) : NULL;
++    bus = qdev_get_child_bus(DEVICE(a10), "sd-bus");
++
++    /* Plug in SD card */
++    carddev = qdev_create(bus, TYPE_SD_CARD);
++    qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
++    object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
++
+     memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE,
+                                 machine->ram);
+diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/orangepi.c
++++ b/hw/arm/orangepi.c
+@@ -XXX,XX +XXX,XX @@ static struct arm_boot_info orangepi_binfo = {
+ static void orangepi_init(MachineState *machine)
+ {
+     AwH3State *h3;
++    DriveInfo *di;
++    BlockBackend *blk;
++    BusState *bus;
++    DeviceState *carddev;
+     /* BIOS is not supported by this board */
+     if (bios_name) {
+@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
+     /* Mark H3 object realized */
+     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
++    /* Retrieve SD bus */
++    di = drive_get_next(IF_SD);
++    blk = di ? blk_by_legacy_dinfo(di) : NULL;
++    bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
++
++    /* Plug in SD card */
++    carddev = qdev_create(bus, TYPE_SD_CARD);
++    qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
++    object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
++
+     /* SDRAM */
+     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
+                                 machine->ram);
+@@ -XXX,XX +XXX,XX @@ static void orangepi_machine_init(MachineClass *mc)
+ {
+     mc->desc = "Orange Pi PC";
+     mc->init = orangepi_init;
++    mc->block_default_type = IF_SD;
++    mc->units_per_default_bus = 1;
+     mc->min_cpus = AW_H3_NUM_CPUS;
+     mc->max_cpus = AW_H3_NUM_CPUS;
+     mc->default_cpus = AW_H3_NUM_CPUS;
+diff --git a/hw/sd/allwinner-sdhost.c b/hw/sd/allwinner-sdhost.c
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/hw/sd/allwinner-sdhost.c
+@@ -XXX,XX +XXX,XX @@
++/*
++ * Allwinner (sun4i and above) SD Host Controller emulation
++ *
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
++ *
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation, either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#include "qemu/osdep.h"
++#include "qemu/log.h"
++#include "qemu/module.h"
++#include "qemu/units.h"
++#include "sysemu/blockdev.h"
++#include "hw/irq.h"
++#include "hw/sd/allwinner-sdhost.h"
++#include "migration/vmstate.h"
++#include "trace.h"
++
++#define TYPE_AW_SDHOST_BUS "allwinner-sdhost-bus"
++#define AW_SDHOST_BUS(obj) \
++    OBJECT_CHECK(SDBus, (obj), TYPE_AW_SDHOST_BUS)
++
++/* SD Host register offsets */
++enum {
++    REG_SD_GCTL       = 0x00,  /* Global Control */
++    REG_SD_CKCR       = 0x04,  /* Clock Control */
++    REG_SD_TMOR       = 0x08,  /* Timeout */
++    REG_SD_BWDR       = 0x0C,  /* Bus Width */
++    REG_SD_BKSR       = 0x10,  /* Block Size */
++    REG_SD_BYCR       = 0x14,  /* Byte Count */
++    REG_SD_CMDR       = 0x18,  /* Command */
++    REG_SD_CAGR       = 0x1C,  /* Command Argument */
++    REG_SD_RESP0      = 0x20,  /* Response Zero */
++    REG_SD_RESP1      = 0x24,  /* Response One */
++    REG_SD_RESP2      = 0x28,  /* Response Two */
++    REG_SD_RESP3      = 0x2C,  /* Response Three */
++    REG_SD_IMKR       = 0x30,  /* Interrupt Mask */
++    REG_SD_MISR       = 0x34,  /* Masked Interrupt Status */
++    REG_SD_RISR       = 0x38,  /* Raw Interrupt Status */
++    REG_SD_STAR       = 0x3C,  /* Status */
++    REG_SD_FWLR       = 0x40,  /* FIFO Water Level */
++    REG_SD_FUNS       = 0x44,  /* FIFO Function Select */
++    REG_SD_DBGC       = 0x50,  /* Debug Enable */
++    REG_SD_A12A       = 0x58,  /* Auto command 12 argument */
++    REG_SD_NTSR       = 0x5C,  /* SD NewTiming Set */
++    REG_SD_SDBG       = 0x60,  /* SD newTiming Set Debug */
++    REG_SD_HWRST      = 0x78,  /* Hardware Reset Register */
++    REG_SD_DMAC       = 0x80,  /* Internal DMA Controller Control */
++    REG_SD_DLBA       = 0x84,  /* Descriptor List Base Address */
++    REG_SD_IDST       = 0x88,  /* Internal DMA Controller Status */
++    REG_SD_IDIE       = 0x8C,  /* Internal DMA Controller IRQ Enable */
++    REG_SD_THLDC      = 0x100, /* Card Threshold Control */
++    REG_SD_DSBD       = 0x10C, /* eMMC DDR Start Bit Detection Control */
++    REG_SD_RES_CRC    = 0x110, /* Response CRC from card/eMMC */
++    REG_SD_DATA7_CRC  = 0x114, /* CRC Data 7 from card/eMMC */
++    REG_SD_DATA6_CRC  = 0x118, /* CRC Data 6 from card/eMMC */
++    REG_SD_DATA5_CRC  = 0x11C, /* CRC Data 5 from card/eMMC */
++    REG_SD_DATA4_CRC  = 0x120, /* CRC Data 4 from card/eMMC */
++    REG_SD_DATA3_CRC  = 0x124, /* CRC Data 3 from card/eMMC */
++    REG_SD_DATA2_CRC  = 0x128, /* CRC Data 2 from card/eMMC */
++    REG_SD_DATA1_CRC  = 0x12C, /* CRC Data 1 from card/eMMC */
++    REG_SD_DATA0_CRC  = 0x130, /* CRC Data 0 from card/eMMC */
++    REG_SD_CRC_STA    = 0x134, /* CRC status from card/eMMC during write */
++    REG_SD_FIFO       = 0x200, /* Read/Write FIFO */
++};
++
++/* SD Host register flags */
++enum {
++    SD_GCTL_FIFO_AC_MOD     = (1 << 31),
++    SD_GCTL_DDR_MOD_SEL     = (1 << 10),
++    SD_GCTL_CD_DBC_ENB      = (1 << 8),
++    SD_GCTL_DMA_ENB         = (1 << 5),
++    SD_GCTL_INT_ENB         = (1 << 4),
++    SD_GCTL_DMA_RST         = (1 << 2),
++    SD_GCTL_FIFO_RST        = (1 << 1),
++    SD_GCTL_SOFT_RST        = (1 << 0),
++};
++
++enum {
++    SD_CMDR_LOAD            = (1 << 31),
++    SD_CMDR_CLKCHANGE       = (1 << 21),
++    SD_CMDR_WRITE           = (1 << 10),
++    SD_CMDR_AUTOSTOP        = (1 << 12),
++    SD_CMDR_DATA            = (1 << 9),
++    SD_CMDR_RESPONSE_LONG   = (1 << 7),
++    SD_CMDR_RESPONSE        = (1 << 6),
++    SD_CMDR_CMDID_MASK      = (0x3f),
++};
++
++enum {
++    SD_RISR_CARD_REMOVE     = (1 << 31),
++    SD_RISR_CARD_INSERT     = (1 << 30),
++    SD_RISR_SDIO_INTR       = (1 << 16),
++    SD_RISR_AUTOCMD_DONE    = (1 << 14),
++    SD_RISR_DATA_COMPLETE   = (1 << 3),
++    SD_RISR_CMD_COMPLETE    = (1 << 2),
++    SD_RISR_NO_RESPONSE     = (1 << 1),
++};
++
++enum {
++    SD_STAR_CARD_PRESENT    = (1 << 8),
++};
++
++enum {
++    SD_IDST_INT_SUMMARY     = (1 << 8),
++    SD_IDST_RECEIVE_IRQ     = (1 << 1),
++    SD_IDST_TRANSMIT_IRQ    = (1 << 0),
++    SD_IDST_IRQ_MASK        = (1 << 1) | (1 << 0) | (1 << 8),
++    SD_IDST_WR_MASK         = (0x3ff),
++};
++
++/* SD Host register reset values */
++enum {
++    REG_SD_GCTL_RST         = 0x00000300,
++    REG_SD_CKCR_RST         = 0x0,
++    REG_SD_TMOR_RST         = 0xFFFFFF40,
++    REG_SD_BWDR_RST         = 0x0,
++    REG_SD_BKSR_RST         = 0x00000200,
++    REG_SD_BYCR_RST         = 0x00000200,
++    REG_SD_CMDR_RST         = 0x0,
++    REG_SD_CAGR_RST         = 0x0,
++    REG_SD_RESP_RST         = 0x0,
++    REG_SD_IMKR_RST         = 0x0,
++    REG_SD_MISR_RST         = 0x0,
++    REG_SD_RISR_RST         = 0x0,
++    REG_SD_STAR_RST         = 0x00000100,
++    REG_SD_FWLR_RST         = 0x000F0000,
++    REG_SD_FUNS_RST         = 0x0,
++    REG_SD_DBGC_RST         = 0x0,
++    REG_SD_A12A_RST         = 0x0000FFFF,
++    REG_SD_NTSR_RST         = 0x00000001,
++    REG_SD_SDBG_RST         = 0x0,
++    REG_SD_HWRST_RST        = 0x00000001,
++    REG_SD_DMAC_RST         = 0x0,
++    REG_SD_DLBA_RST         = 0x0,
++    REG_SD_IDST_RST         = 0x0,
++    REG_SD_IDIE_RST         = 0x0,
++    REG_SD_THLDC_RST        = 0x0,
++    REG_SD_DSBD_RST         = 0x0,
++    REG_SD_RES_CRC_RST      = 0x0,
++    REG_SD_DATA_CRC_RST     = 0x0,
++    REG_SD_CRC_STA_RST      = 0x0,
++    REG_SD_FIFO_RST         = 0x0,
++};
++
++/* Data transfer descriptor for DMA */
++typedef struct TransferDescriptor {
++    uint32_t status; /* Status flags */
++    uint32_t size;   /* Data buffer size */
++    uint32_t addr;   /* Data buffer address */
++    uint32_t next;   /* Physical address of next descriptor */
++} TransferDescriptor;
++
++/* Data transfer descriptor flags */
++enum {
++    DESC_STATUS_HOLD   = (1 << 31), /* Set when descriptor is in use by DMA */
++    DESC_STATUS_ERROR  = (1 << 30), /* Set when DMA transfer error occurred */
++    DESC_STATUS_CHAIN  = (1 << 4),  /* Indicates chained descriptor. */
++    DESC_STATUS_FIRST  = (1 << 3),  /* Set on the first descriptor */
++    DESC_STATUS_LAST   = (1 << 2),  /* Set on the last descriptor */
++    DESC_STATUS_NOIRQ  = (1 << 1),  /* Skip raising interrupt after transfer */
++    DESC_SIZE_MASK     = (0xfffffffc)
++};
++
++static void allwinner_sdhost_update_irq(AwSdHostState *s)
++{
++    uint32_t irq;
++
++    if (s->global_ctl & SD_GCTL_INT_ENB) {
++        irq = s->irq_status & s->irq_mask;
++    } else {
++        irq = 0;
++    }
++
++    trace_allwinner_sdhost_update_irq(irq);
++    qemu_set_irq(s->irq, irq);
++}
++
++static void allwinner_sdhost_update_transfer_cnt(AwSdHostState *s,
++                                                 uint32_t bytes)
++{
++    if (s->transfer_cnt > bytes) {
++        s->transfer_cnt -= bytes;
++    } else {
++        s->transfer_cnt = 0;
++    }
++
++    if (!s->transfer_cnt) {
++        s->irq_status |= SD_RISR_DATA_COMPLETE;
++    }
++}
++
++static void allwinner_sdhost_set_inserted(DeviceState *dev, bool inserted)
++{
++    AwSdHostState *s = AW_SDHOST(dev);
++
++    trace_allwinner_sdhost_set_inserted(inserted);
++
++    if (inserted) {
++        s->irq_status |= SD_RISR_CARD_INSERT;
++        s->irq_status &= ~SD_RISR_CARD_REMOVE;
++        s->status |= SD_STAR_CARD_PRESENT;
++    } else {
++        s->irq_status &= ~SD_RISR_CARD_INSERT;
++        s->irq_status |= SD_RISR_CARD_REMOVE;
++        s->status &= ~SD_STAR_CARD_PRESENT;
++    }
++
++    allwinner_sdhost_update_irq(s);
++}
++
++static void allwinner_sdhost_send_command(AwSdHostState *s)
++{
++    SDRequest request;
++    uint8_t resp[16];
++    int rlen;
++
++    /* Auto clear load flag */
++    s->command &= ~SD_CMDR_LOAD;
++
++    /* Clock change does not actually interact with the SD bus */
++    if (!(s->command & SD_CMDR_CLKCHANGE)) {
++
++        /* Prepare request */
++        request.cmd = s->command & SD_CMDR_CMDID_MASK;
++        request.arg = s->command_arg;
++
++        /* Send request to SD bus */
++        rlen = sdbus_do_command(&s->sdbus, &request, resp);
++        if (rlen < 0) {
++            goto error;
++        }
++
++        /* If the command has a response, store it in the response registers */
++        if ((s->command & SD_CMDR_RESPONSE)) {
++            if (rlen == 4 && !(s->command & SD_CMDR_RESPONSE_LONG)) {
++                s->response[0] = ldl_be_p(&resp[0]);
++                s->response[1] = s->response[2] = s->response[3] = 0;
++
++            } else if (rlen == 16 && (s->command & SD_CMDR_RESPONSE_LONG)) {
++                s->response[0] = ldl_be_p(&resp[12]);
++                s->response[1] = ldl_be_p(&resp[8]);
++                s->response[2] = ldl_be_p(&resp[4]);
++                s->response[3] = ldl_be_p(&resp[0]);
++            } else {
++                goto error;
++            }
++        }
++    }
++
++    /* Set interrupt status bits */
++    s->irq_status |= SD_RISR_CMD_COMPLETE;
++    return;
++
++error:
++    s->irq_status |= SD_RISR_NO_RESPONSE;
++}
++
++static void allwinner_sdhost_auto_stop(AwSdHostState *s)
++{
++    /*
++     * The stop command (CMD12) ensures the SD bus
++     * returns to the transfer state.
++     */
++    if ((s->command & SD_CMDR_AUTOSTOP) && (s->transfer_cnt == 0)) {
++        /* First save current command registers */
++        uint32_t saved_cmd = s->command;
++        uint32_t saved_arg = s->command_arg;
++
++        /* Prepare stop command (CMD12) */
++        s->command &= ~SD_CMDR_CMDID_MASK;
++        s->command |= 12; /* CMD12 */
++        s->command_arg = 0;
++
++        /* Put the command on SD bus */
++        allwinner_sdhost_send_command(s);
++
++        /* Restore command values */
++        s->command = saved_cmd;
++        s->command_arg = saved_arg;
++
++        /* Set IRQ status bit for automatic stop done */
++        s->irq_status |= SD_RISR_AUTOCMD_DONE;
++    }
++}
++
++static uint32_t allwinner_sdhost_process_desc(AwSdHostState *s,
++                                              hwaddr desc_addr,
++                                              TransferDescriptor *desc,
++                                              bool is_write, uint32_t max_bytes)
++{
++    AwSdHostClass *klass = AW_SDHOST_GET_CLASS(s);
++    uint32_t num_done = 0;
++    uint32_t num_bytes = max_bytes;
++    uint8_t buf[1024];
++
++    /* Read descriptor */
++    cpu_physical_memory_read(desc_addr, desc, sizeof(*desc));
++    if (desc->size == 0) {
++        desc->size = klass->max_desc_size;
++    } else if (desc->size > klass->max_desc_size) {
++        qemu_log_mask(LOG_GUEST_ERROR, "%s: DMA descriptor buffer size "
++                      " is out-of-bounds: %" PRIu32 " > %zu",
++                      __func__, desc->size, klass->max_desc_size);
++        desc->size = klass->max_desc_size;
++    }
++    if (desc->size < num_bytes) {
++        num_bytes = desc->size;
++    }
++
++    trace_allwinner_sdhost_process_desc(desc_addr, desc->size,
++                                        is_write, max_bytes);
++
++    while (num_done < num_bytes) {
++        /* Try to completely fill the local buffer */
++        uint32_t buf_bytes = num_bytes - num_done;
++        if (buf_bytes > sizeof(buf)) {
++            buf_bytes = sizeof(buf);
++        }
++
++        /* Write to SD bus */
++        if (is_write) {
++            cpu_physical_memory_read((desc->addr & DESC_SIZE_MASK) + num_done,
++                                      buf, buf_bytes);
++
++            for (uint32_t i = 0; i < buf_bytes; i++) {
++                sdbus_write_data(&s->sdbus, buf[i]);
++            }
++
++        /* Read from SD bus */
++        } else {
++            for (uint32_t i = 0; i < buf_bytes; i++) {
++                buf[i] = sdbus_read_data(&s->sdbus);
++            }
++            cpu_physical_memory_write((desc->addr & DESC_SIZE_MASK) + num_done,
++                                       buf, buf_bytes);
++        }
++        num_done += buf_bytes;
++    }
++
++    /* Clear hold flag and flush descriptor */
++    desc->status &= ~DESC_STATUS_HOLD;
++    cpu_physical_memory_write(desc_addr, desc, sizeof(*desc));
++
++    return num_done;
++}
++
++static void allwinner_sdhost_dma(AwSdHostState *s)
++{
++    TransferDescriptor desc;
++    hwaddr desc_addr = s->desc_base;
++    bool is_write = (s->command & SD_CMDR_WRITE);
++    uint32_t bytes_done = 0;
++
++    /* Check if DMA can be performed */
++    if (s->byte_count == 0 || s->block_size == 0 ||
++      !(s->global_ctl & SD_GCTL_DMA_ENB)) {
++        return;
++    }
++
++    /*
++     * For read operations, data must be available on the SD bus
++     * If not, it is an error and we should not act at all
++     */
++    if (!is_write && !sdbus_data_ready(&s->sdbus)) {
++        return;
++    }
++
++    /* Process the DMA descriptors until all data is copied */
++    while (s->byte_count > 0) {
++        bytes_done = allwinner_sdhost_process_desc(s, desc_addr, &desc,
++                                                   is_write, s->byte_count);
++        allwinner_sdhost_update_transfer_cnt(s, bytes_done);
++
++        if (bytes_done <= s->byte_count) {
++            s->byte_count -= bytes_done;
++        } else {
++            s->byte_count = 0;
++        }
++
++        if (desc.status & DESC_STATUS_LAST) {
++            break;
++        } else {
++            desc_addr = desc.next;
++        }
++    }
++
++    /* Raise IRQ to signal DMA is completed */
++    s->irq_status |= SD_RISR_DATA_COMPLETE | SD_RISR_SDIO_INTR;
++
++    /* Update DMAC bits */
++    s->dmac_status |= SD_IDST_INT_SUMMARY;
++
++    if (is_write) {
++        s->dmac_status |= SD_IDST_TRANSMIT_IRQ;
++    } else {
++        s->dmac_status |= SD_IDST_RECEIVE_IRQ;
++    }
++}
++
++static uint64_t allwinner_sdhost_read(void *opaque, hwaddr offset,
++                                      unsigned size)
++{
++    AwSdHostState *s = AW_SDHOST(opaque);
++    uint32_t res = 0;
++
++    switch (offset) {
++    case REG_SD_GCTL:      /* Global Control */
++        res = s->global_ctl;
++        break;
++    case REG_SD_CKCR:      /* Clock Control */
++        res = s->clock_ctl;
++        break;
++    case REG_SD_TMOR:      /* Timeout */
++        res = s->timeout;
++        break;
++    case REG_SD_BWDR:      /* Bus Width */
++        res = s->bus_width;
++        break;
++    case REG_SD_BKSR:      /* Block Size */
++        res = s->block_size;
++        break;
++    case REG_SD_BYCR:      /* Byte Count */
++        res = s->byte_count;
++        break;
++    case REG_SD_CMDR:      /* Command */
++        res = s->command;
++        break;
++    case REG_SD_CAGR:      /* Command Argument */
++        res = s->command_arg;
++        break;
++    case REG_SD_RESP0:     /* Response Zero */
++        res = s->response[0];
++        break;
++    case REG_SD_RESP1:     /* Response One */
++        res = s->response[1];
++        break;
++    case REG_SD_RESP2:     /* Response Two */
++        res = s->response[2];
++        break;
++    case REG_SD_RESP3:     /* Response Three */
++        res = s->response[3];
++        break;
++    case REG_SD_IMKR:      /* Interrupt Mask */
++        res = s->irq_mask;
++        break;
++    case REG_SD_MISR:      /* Masked Interrupt Status */
++        res = s->irq_status & s->irq_mask;
++        break;
++    case REG_SD_RISR:      /* Raw Interrupt Status */
++        res = s->irq_status;
++        break;
++    case REG_SD_STAR:      /* Status */
++        res = s->status;
++        break;
++    case REG_SD_FWLR:      /* FIFO Water Level */
++        res = s->fifo_wlevel;
++        break;
++    case REG_SD_FUNS:      /* FIFO Function Select */
++        res = s->fifo_func_sel;
++        break;
++    case REG_SD_DBGC:      /* Debug Enable */
++        res = s->debug_enable;
++        break;
++    case REG_SD_A12A:      /* Auto command 12 argument */
++        res = s->auto12_arg;
++        break;
++    case REG_SD_NTSR:      /* SD NewTiming Set */
++        res = s->newtiming_set;
++        break;
++    case REG_SD_SDBG:      /* SD newTiming Set Debug */
++        res = s->newtiming_debug;
++        break;
++    case REG_SD_HWRST:     /* Hardware Reset Register */
++        res = s->hardware_rst;
++        break;
++    case REG_SD_DMAC:      /* Internal DMA Controller Control */
++        res = s->dmac;
++        break;
++    case REG_SD_DLBA:      /* Descriptor List Base Address */
++        res = s->desc_base;
++        break;
++    case REG_SD_IDST:      /* Internal DMA Controller Status */
++        res = s->dmac_status;
++        break;
++    case REG_SD_IDIE:      /* Internal DMA Controller Interrupt Enable */
++        res = s->dmac_irq;
++        break;
++    case REG_SD_THLDC:     /* Card Threshold Control */
++        res = s->card_threshold;
++        break;
++    case REG_SD_DSBD:      /* eMMC DDR Start Bit Detection Control */
++        res = s->startbit_detect;
++        break;
++    case REG_SD_RES_CRC:   /* Response CRC from card/eMMC */
++        res = s->response_crc;
++        break;
++    case REG_SD_DATA7_CRC: /* CRC Data 7 from card/eMMC */
++    case REG_SD_DATA6_CRC: /* CRC Data 6 from card/eMMC */
++    case REG_SD_DATA5_CRC: /* CRC Data 5 from card/eMMC */
++    case REG_SD_DATA4_CRC: /* CRC Data 4 from card/eMMC */
++    case REG_SD_DATA3_CRC: /* CRC Data 3 from card/eMMC */
++    case REG_SD_DATA2_CRC: /* CRC Data 2 from card/eMMC */
++    case REG_SD_DATA1_CRC: /* CRC Data 1 from card/eMMC */
++    case REG_SD_DATA0_CRC: /* CRC Data 0 from card/eMMC */
++        res = s->data_crc[((offset - REG_SD_DATA7_CRC) / sizeof(uint32_t))];
++        break;
++    case REG_SD_CRC_STA:   /* CRC status from card/eMMC in write operation */
++        res = s->status_crc;
++        break;
++    case REG_SD_FIFO:      /* Read/Write FIFO */
++        if (sdbus_data_ready(&s->sdbus)) {
++            res = sdbus_read_data(&s->sdbus);
++            res |= sdbus_read_data(&s->sdbus) << 8;
++            res |= sdbus_read_data(&s->sdbus) << 16;
++            res |= sdbus_read_data(&s->sdbus) << 24;
++            allwinner_sdhost_update_transfer_cnt(s, sizeof(uint32_t));
++            allwinner_sdhost_auto_stop(s);
++            allwinner_sdhost_update_irq(s);
++        } else {
++            qemu_log_mask(LOG_GUEST_ERROR, "%s: no data ready on SD bus\n",
++                          __func__);
++        }
++        break;
++    default:
++        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset %"
++                      HWADDR_PRIx"\n", __func__, offset);
++        res = 0;
++        break;
++    }
++
++    trace_allwinner_sdhost_read(offset, res, size);
++    return res;
++}
++
++static void allwinner_sdhost_write(void *opaque, hwaddr offset,
++                                   uint64_t value, unsigned size)
++{
++    AwSdHostState *s = AW_SDHOST(opaque);
++
++    trace_allwinner_sdhost_write(offset, value, size);
++
++    switch (offset) {
++    case REG_SD_GCTL:      /* Global Control */
++        s->global_ctl = value;
++        s->global_ctl &= ~(SD_GCTL_DMA_RST | SD_GCTL_FIFO_RST |
++                           SD_GCTL_SOFT_RST);
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_CKCR:      /* Clock Control */
++        s->clock_ctl = value;
++        break;
++    case REG_SD_TMOR:      /* Timeout */
++        s->timeout = value;
++        break;
++    case REG_SD_BWDR:      /* Bus Width */
++        s->bus_width = value;
++        break;
++    case REG_SD_BKSR:      /* Block Size */
++        s->block_size = value;
++        break;
++    case REG_SD_BYCR:      /* Byte Count */
++        s->byte_count = value;
++        s->transfer_cnt = value;
++        break;
++    case REG_SD_CMDR:      /* Command */
++        s->command = value;
++        if (value & SD_CMDR_LOAD) {
++            allwinner_sdhost_send_command(s);
++            allwinner_sdhost_dma(s);
++            allwinner_sdhost_auto_stop(s);
++        }
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_CAGR:      /* Command Argument */
++        s->command_arg = value;
++        break;
++    case REG_SD_RESP0:     /* Response Zero */
++        s->response[0] = value;
++        break;
++    case REG_SD_RESP1:     /* Response One */
++        s->response[1] = value;
++        break;
++    case REG_SD_RESP2:     /* Response Two */
++        s->response[2] = value;
++        break;
++    case REG_SD_RESP3:     /* Response Three */
++        s->response[3] = value;
++        break;
++    case REG_SD_IMKR:      /* Interrupt Mask */
++        s->irq_mask = value;
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_MISR:      /* Masked Interrupt Status */
++    case REG_SD_RISR:      /* Raw Interrupt Status */
++        s->irq_status &= ~value;
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_STAR:      /* Status */
++        s->status &= ~value;
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_FWLR:      /* FIFO Water Level */
++        s->fifo_wlevel = value;
++        break;
++    case REG_SD_FUNS:      /* FIFO Function Select */
++        s->fifo_func_sel = value;
++        break;
++    case REG_SD_DBGC:      /* Debug Enable */
++        s->debug_enable = value;
++        break;
++    case REG_SD_A12A:      /* Auto command 12 argument */
++        s->auto12_arg = value;
++        break;
++    case REG_SD_NTSR:      /* SD NewTiming Set */
++        s->newtiming_set = value;
++        break;
++    case REG_SD_SDBG:      /* SD newTiming Set Debug */
++        s->newtiming_debug = value;
++        break;
++    case REG_SD_HWRST:     /* Hardware Reset Register */
++        s->hardware_rst = value;
++        break;
++    case REG_SD_DMAC:      /* Internal DMA Controller Control */
++        s->dmac = value;
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_DLBA:      /* Descriptor List Base Address */
++        s->desc_base = value;
++        break;
++    case REG_SD_IDST:      /* Internal DMA Controller Status */
++        s->dmac_status &= (~SD_IDST_WR_MASK) | (~value & SD_IDST_WR_MASK);
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_IDIE:      /* Internal DMA Controller Interrupt Enable */
++        s->dmac_irq = value;
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_THLDC:     /* Card Threshold Control */
++        s->card_threshold = value;
++        break;
++    case REG_SD_DSBD:      /* eMMC DDR Start Bit Detection Control */
++        s->startbit_detect = value;
++        break;
++    case REG_SD_FIFO:      /* Read/Write FIFO */
++        sdbus_write_data(&s->sdbus, value & 0xff);
++        sdbus_write_data(&s->sdbus, (value >> 8) & 0xff);
++        sdbus_write_data(&s->sdbus, (value >> 16) & 0xff);
++        sdbus_write_data(&s->sdbus, (value >> 24) & 0xff);
++        allwinner_sdhost_update_transfer_cnt(s, sizeof(uint32_t));
++        allwinner_sdhost_auto_stop(s);
++        allwinner_sdhost_update_irq(s);
++        break;
++    case REG_SD_RES_CRC:   /* Response CRC from card/eMMC */
++    case REG_SD_DATA7_CRC: /* CRC Data 7 from card/eMMC */
++    case REG_SD_DATA6_CRC: /* CRC Data 6 from card/eMMC */
++    case REG_SD_DATA5_CRC: /* CRC Data 5 from card/eMMC */
++    case REG_SD_DATA4_CRC: /* CRC Data 4 from card/eMMC */
++    case REG_SD_DATA3_CRC: /* CRC Data 3 from card/eMMC */
++    case REG_SD_DATA2_CRC: /* CRC Data 2 from card/eMMC */
++    case REG_SD_DATA1_CRC: /* CRC Data 1 from card/eMMC */
++    case REG_SD_DATA0_CRC: /* CRC Data 0 from card/eMMC */
++    case REG_SD_CRC_STA:   /* CRC status from card/eMMC in write operation */
++        break;
++    default:
++        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset %"
++                      HWADDR_PRIx"\n", __func__, offset);
++        break;
++    }
++}
++
++static const MemoryRegionOps allwinner_sdhost_ops = {
++    .read = allwinner_sdhost_read,
++    .write = allwinner_sdhost_write,
++    .endianness = DEVICE_NATIVE_ENDIAN,
++    .valid = {
++        .min_access_size = 4,
++        .max_access_size = 4,
++    },
++    .impl.min_access_size = 4,
++};
++
++static const VMStateDescription vmstate_allwinner_sdhost = {
++    .name = "allwinner-sdhost",
++    .version_id = 1,
++    .minimum_version_id = 1,
++    .fields = (VMStateField[]) {
++        VMSTATE_UINT32(global_ctl, AwSdHostState),
++        VMSTATE_UINT32(clock_ctl, AwSdHostState),
++        VMSTATE_UINT32(timeout, AwSdHostState),
++        VMSTATE_UINT32(bus_width, AwSdHostState),
++        VMSTATE_UINT32(block_size, AwSdHostState),
++        VMSTATE_UINT32(byte_count, AwSdHostState),
++        VMSTATE_UINT32(transfer_cnt, AwSdHostState),
++        VMSTATE_UINT32(command, AwSdHostState),
++        VMSTATE_UINT32(command_arg, AwSdHostState),
++        VMSTATE_UINT32_ARRAY(response, AwSdHostState, 4),
++        VMSTATE_UINT32(irq_mask, AwSdHostState),
++        VMSTATE_UINT32(irq_status, AwSdHostState),
++        VMSTATE_UINT32(status, AwSdHostState),
++        VMSTATE_UINT32(fifo_wlevel, AwSdHostState),
++        VMSTATE_UINT32(fifo_func_sel, AwSdHostState),
++        VMSTATE_UINT32(debug_enable, AwSdHostState),
++        VMSTATE_UINT32(auto12_arg, AwSdHostState),
++        VMSTATE_UINT32(newtiming_set, AwSdHostState),
++        VMSTATE_UINT32(newtiming_debug, AwSdHostState),
++        VMSTATE_UINT32(hardware_rst, AwSdHostState),
++        VMSTATE_UINT32(dmac, AwSdHostState),
++        VMSTATE_UINT32(desc_base, AwSdHostState),
++        VMSTATE_UINT32(dmac_status, AwSdHostState),
++        VMSTATE_UINT32(dmac_irq, AwSdHostState),
++        VMSTATE_UINT32(card_threshold, AwSdHostState),
++        VMSTATE_UINT32(startbit_detect, AwSdHostState),
++        VMSTATE_UINT32(response_crc, AwSdHostState),
++        VMSTATE_UINT32_ARRAY(data_crc, AwSdHostState, 8),
++        VMSTATE_UINT32(status_crc, AwSdHostState),
++        VMSTATE_END_OF_LIST()
++    }
++};
++
++static void allwinner_sdhost_init(Object *obj)
++{
++    AwSdHostState *s = AW_SDHOST(obj);
++
++    qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
++                         TYPE_AW_SDHOST_BUS, DEVICE(s), "sd-bus");
++
++    memory_region_init_io(&s->iomem, obj, &allwinner_sdhost_ops, s,
++                           TYPE_AW_SDHOST, 4 * KiB);
++    sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem);
++    sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq);
++}
++
++static void allwinner_sdhost_reset(DeviceState *dev)
++{
++    AwSdHostState *s = AW_SDHOST(dev);
++
++    s->global_ctl = REG_SD_GCTL_RST;
++    s->clock_ctl = REG_SD_CKCR_RST;
++    s->timeout = REG_SD_TMOR_RST;
++    s->bus_width = REG_SD_BWDR_RST;
++    s->block_size = REG_SD_BKSR_RST;
++    s->byte_count = REG_SD_BYCR_RST;
++    s->transfer_cnt = 0;
++
++    s->command = REG_SD_CMDR_RST;
++    s->command_arg = REG_SD_CAGR_RST;
++
++    for (int i = 0; i < ARRAY_SIZE(s->response); i++) {
++        s->response[i] = REG_SD_RESP_RST;
++    }
++
++    s->irq_mask = REG_SD_IMKR_RST;
++    s->irq_status = REG_SD_RISR_RST;
++    s->status = REG_SD_STAR_RST;
++
++    s->fifo_wlevel = REG_SD_FWLR_RST;
++    s->fifo_func_sel = REG_SD_FUNS_RST;
++    s->debug_enable = REG_SD_DBGC_RST;
++    s->auto12_arg = REG_SD_A12A_RST;
++    s->newtiming_set = REG_SD_NTSR_RST;
++    s->newtiming_debug = REG_SD_SDBG_RST;
++    s->hardware_rst = REG_SD_HWRST_RST;
++    s->dmac = REG_SD_DMAC_RST;
++    s->desc_base = REG_SD_DLBA_RST;
++    s->dmac_status = REG_SD_IDST_RST;
++    s->dmac_irq = REG_SD_IDIE_RST;
++    s->card_threshold = REG_SD_THLDC_RST;
++    s->startbit_detect = REG_SD_DSBD_RST;
++    s->response_crc = REG_SD_RES_CRC_RST;
++
++    for (int i = 0; i < ARRAY_SIZE(s->data_crc); i++) {
++        s->data_crc[i] = REG_SD_DATA_CRC_RST;
++    }
++
++    s->status_crc = REG_SD_CRC_STA_RST;
++}
++
++static void allwinner_sdhost_bus_class_init(ObjectClass *klass, void *data)
++{
++    SDBusClass *sbc = SD_BUS_CLASS(klass);
++
++    sbc->set_inserted = allwinner_sdhost_set_inserted;
++}
++
++static void allwinner_sdhost_class_init(ObjectClass *klass, void *data)
++{
++    DeviceClass *dc = DEVICE_CLASS(klass);
++
++    dc->reset = allwinner_sdhost_reset;
++    dc->vmsd = &vmstate_allwinner_sdhost;
++}
++
++static void allwinner_sdhost_sun4i_class_init(ObjectClass *klass, void *data)
++{
++    AwSdHostClass *sc = AW_SDHOST_CLASS(klass);
++    sc->max_desc_size = 8 * KiB;
++}
++
++static void allwinner_sdhost_sun5i_class_init(ObjectClass *klass, void *data)
++{
++    AwSdHostClass *sc = AW_SDHOST_CLASS(klass);
++    sc->max_desc_size = 64 * KiB;
++}
++
++static TypeInfo allwinner_sdhost_info = {
++    .name          = TYPE_AW_SDHOST,
++    .parent        = TYPE_SYS_BUS_DEVICE,
++    .instance_init = allwinner_sdhost_init,
++    .instance_size = sizeof(AwSdHostState),
++    .class_init    = allwinner_sdhost_class_init,
++    .class_size    = sizeof(AwSdHostClass),
++    .abstract      = true,
++};
++
++static const TypeInfo allwinner_sdhost_sun4i_info = {
++    .name          = TYPE_AW_SDHOST_SUN4I,
++    .parent        = TYPE_AW_SDHOST,
++    .class_init    = allwinner_sdhost_sun4i_class_init,
++};
++
++static const TypeInfo allwinner_sdhost_sun5i_info = {
++    .name          = TYPE_AW_SDHOST_SUN5I,
++    .parent        = TYPE_AW_SDHOST,
++    .class_init    = allwinner_sdhost_sun5i_class_init,
++};
++
++static const TypeInfo allwinner_sdhost_bus_info = {
++    .name = TYPE_AW_SDHOST_BUS,
++    .parent = TYPE_SD_BUS,
++    .instance_size = sizeof(SDBus),
++    .class_init = allwinner_sdhost_bus_class_init,
++};
++
++static void allwinner_sdhost_register_types(void)
++{
++    type_register_static(&allwinner_sdhost_info);
++    type_register_static(&allwinner_sdhost_sun4i_info);
++    type_register_static(&allwinner_sdhost_sun5i_info);
++    type_register_static(&allwinner_sdhost_bus_info);
++}
++
++type_init(allwinner_sdhost_register_types)
+diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/Kconfig
++++ b/hw/arm/Kconfig
+@@ -XXX,XX +XXX,XX @@ config ALLWINNER_H3
+     select UNIMP
+     select USB_OHCI
+     select USB_EHCI_SYSBUS
++    select SD
+ config RASPI
+     bool
+diff --git a/hw/sd/trace-events b/hw/sd/trace-events
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/sd/trace-events
++++ b/hw/sd/trace-events
+@@ -XXX,XX +XXX,XX @@
+ # See docs/devel/tracing.txt for syntax documentation.
++# allwinner-sdhost.c
++allwinner_sdhost_set_inserted(bool inserted) "inserted %u"
++allwinner_sdhost_process_desc(uint64_t desc_addr, uint32_t desc_size, bool is_write, uint32_t max_bytes) "desc_addr 0x%" PRIx64 " desc_size %" PRIu32 " is_write %u max_bytes %" PRIu32
++allwinner_sdhost_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
++allwinner_sdhost_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
++allwinner_sdhost_update_irq(uint32_t irq) "IRQ bits 0x%" PRIx32
++
+ # bcm2835_sdhost.c
+ bcm2835_sdhost_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
+ bcm2835_sdhost_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
+--
+.20.1

-New patch
+[PULL 20/36] hw/arm/allwinner-h3: add EMAC ethernet device
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
+The Allwinner Sun8i System on Chip family includes an Ethernet MAC (EMAC)
+which provides 10M/100M/1000M Ethernet connectivity. This commit
+adds support for the Allwinner EMAC from the Sun8i family (H2+, H3, A33, etc),
+including emulation for the following functionality:
+ * DMA transfers
+ * MII interface
+ * Transmit CRC calculation
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-10-nieklinnenbank@gmail.com
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ hw/net/Makefile.objs                  |   1 +
+ include/hw/arm/allwinner-h3.h         |   3 +
+ include/hw/net/allwinner-sun8i-emac.h |  99 +++
+ hw/arm/allwinner-h3.c                 |  16 +-
+ hw/arm/orangepi.c                     |   3 +
+ hw/net/allwinner-sun8i-emac.c         | 871 ++++++++++++++++++++++++++
+ hw/arm/Kconfig                        |   1 +
+ hw/net/Kconfig                        |   3 +
+ hw/net/trace-events                   |  10 +
+files changed, 1006 insertions(+), 1 deletion(-)
+ create mode 100644 include/hw/net/allwinner-sun8i-emac.h
+ create mode 100644 hw/net/allwinner-sun8i-emac.c
+diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/net/Makefile.objs
++++ b/hw/net/Makefile.objs
+@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_XGMAC) += xgmac.o
+ common-obj-$(CONFIG_MIPSNET) += mipsnet.o
+ common-obj-$(CONFIG_XILINX_AXI) += xilinx_axienet.o
+ common-obj-$(CONFIG_ALLWINNER_EMAC) += allwinner_emac.o
++common-obj-$(CONFIG_ALLWINNER_SUN8I_EMAC) += allwinner-sun8i-emac.o
+ common-obj-$(CONFIG_IMX_FEC) += imx_fec.o
+ common-obj-$(CONFIG_CADENCE) += cadence_gem.o
+diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/allwinner-h3.h
++++ b/include/hw/arm/allwinner-h3.h
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/misc/allwinner-h3-sysctrl.h"
+ #include "hw/misc/allwinner-sid.h"
+ #include "hw/sd/allwinner-sdhost.h"
++#include "hw/net/allwinner-sun8i-emac.h"
+ #include "target/arm/cpu.h"
+ /**
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_UART1,
+     AW_H3_UART2,
+     AW_H3_UART3,
++    AW_H3_EMAC,
+     AW_H3_GIC_DIST,
+     AW_H3_GIC_CPU,
+     AW_H3_GIC_HYP,
+@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
+     AwH3SysCtrlState sysctrl;
+     AwSidState sid;
+     AwSdHostState mmc0;
++    AwSun8iEmacState emac;
+     GICState gic;
+     MemoryRegion sram_a1;
+     MemoryRegion sram_a2;
+diff --git a/include/hw/net/allwinner-sun8i-emac.h b/include/hw/net/allwinner-sun8i-emac.h
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/include/hw/net/allwinner-sun8i-emac.h
+@@ -XXX,XX +XXX,XX @@
++/*
++ * Allwinner Sun8i Ethernet MAC emulation
++ *
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
++ *
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation, either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef HW_NET_ALLWINNER_SUN8I_EMAC_H
++#define HW_NET_ALLWINNER_SUN8I_EMAC_H
++
++#include "qom/object.h"
++#include "net/net.h"
++#include "hw/sysbus.h"
++
++/**
++ * Object model
++ * @{
++ */
++
++#define TYPE_AW_SUN8I_EMAC "allwinner-sun8i-emac"
++#define AW_SUN8I_EMAC(obj) \
++    OBJECT_CHECK(AwSun8iEmacState, (obj), TYPE_AW_SUN8I_EMAC)
++
++/** @} */
++
++/**
++ * Allwinner Sun8i EMAC object instance state
++ */
++typedef struct AwSun8iEmacState {
++    /*< private >*/
++    SysBusDevice  parent_obj;
++    /*< public >*/
++
++    /** Maps I/O registers in physical memory */
++    MemoryRegion iomem;
++
++    /** Interrupt output signal to notify CPU */
++    qemu_irq     irq;
++
++    /** Generic Network Interface Controller (NIC) for networking API */
++    NICState     *nic;
++
++    /** Generic Network Interface Controller (NIC) configuration */
++    NICConf      conf;
++
++    /**
++     * @name Media Independent Interface (MII)
++     * @{
++     */
++
++    uint8_t      mii_phy_addr;  /**< PHY address */
++    uint32_t     mii_cr;        /**< Control */
++    uint32_t     mii_st;        /**< Status */
++    uint32_t     mii_adv;       /**< Advertised Abilities */
++
++    /** @} */
++
++    /**
++     * @name Hardware Registers
++     * @{
++     */
++
++    uint32_t     basic_ctl0;    /**< Basic Control 0 */
++    uint32_t     basic_ctl1;    /**< Basic Control 1 */
++    uint32_t     int_en;        /**< Interrupt Enable */
++    uint32_t     int_sta;       /**< Interrupt Status */
++    uint32_t     frm_flt;       /**< Receive Frame Filter */
++
++    uint32_t     rx_ctl0;       /**< Receive Control 0 */
++    uint32_t     rx_ctl1;       /**< Receive Control 1 */
++    uint32_t     rx_desc_head;  /**< Receive Descriptor List Address */
++    uint32_t     rx_desc_curr;  /**< Current Receive Descriptor Address */
++
++    uint32_t     tx_ctl0;       /**< Transmit Control 0 */
++    uint32_t     tx_ctl1;       /**< Transmit Control 1 */
++    uint32_t     tx_desc_head;  /**< Transmit Descriptor List Address */
++    uint32_t     tx_desc_curr;  /**< Current Transmit Descriptor Address */
++    uint32_t     tx_flowctl;    /**< Transmit Flow Control */
++
++    uint32_t     mii_cmd;       /**< Management Interface Command */
++    uint32_t     mii_data;      /**< Management Interface Data */
++
++    /** @} */
++
++} AwSun8iEmacState;
++
++#endif /* HW_NET_ALLWINNER_SUN8I_H */
+diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/allwinner-h3.c
++++ b/hw/arm/allwinner-h3.c
+@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
+     [AW_H3_UART1]      = 0x01c28400,
+     [AW_H3_UART2]      = 0x01c28800,
+     [AW_H3_UART3]      = 0x01c28c00,
++    [AW_H3_EMAC]       = 0x01c30000,
+     [AW_H3_GIC_DIST]   = 0x01c81000,
+     [AW_H3_GIC_CPU]    = 0x01c82000,
+     [AW_H3_GIC_HYP]    = 0x01c84000,
+@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
+     { "twi1",      0x01c2b000, 1 * KiB },
+     { "twi2",      0x01c2b400, 1 * KiB },
+     { "scr",       0x01c2c400, 1 * KiB },
+-    { "emac",      0x01c30000, 64 * KiB },
+     { "gpu",       0x01c40000, 64 * KiB },
+     { "hstmr",     0x01c60000, 4 * KiB },
+     { "dramcom",   0x01c62000, 4 * KiB },
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_GIC_SPI_OHCI2     = 77,
+     AW_H3_GIC_SPI_EHCI3     = 78,
+     AW_H3_GIC_SPI_OHCI3     = 79,
++    AW_H3_GIC_SPI_EMAC      = 82
+ };
+ /* Allwinner H3 general constants */
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
+     sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
+                           TYPE_AW_SDHOST_SUN5I);
++
++    sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
++                          TYPE_AW_SUN8I_EMAC);
+ }
+ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
+     object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
+                               "sd-bus", &error_abort);
++    /* EMAC */
++    if (nd_table[0].used) {
++        qemu_check_nic_model(&nd_table[0], TYPE_AW_SUN8I_EMAC);
++        qdev_set_nic_properties(DEVICE(&s->emac), &nd_table[0]);
++    }
++    qdev_init_nofail(DEVICE(&s->emac));
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->emac), 0, s->memmap[AW_H3_EMAC]);
++    sysbus_connect_irq(SYS_BUS_DEVICE(&s->emac), 0,
++                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_EMAC));
++
+     /* Universal Serial Bus */
+     sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
+                          qdev_get_gpio_in(DEVICE(&s->gic),
+diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/orangepi.c
++++ b/hw/arm/orangepi.c
+@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
+         warn_report("Security Identifier value does not include H3 prefix");
+     }
++    /* Setup EMAC properties */
++    object_property_set_int(OBJECT(&h3->emac), 1, "phy-addr", &error_abort);
++
+     /* Mark H3 object realized */
+     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
+diff --git a/hw/net/allwinner-sun8i-emac.c b/hw/net/allwinner-sun8i-emac.c
+new file mode 100644
+index XXXXXXX..XXXXXXX
+--- /dev/null
++++ b/hw/net/allwinner-sun8i-emac.c
+@@ -XXX,XX +XXX,XX @@
++/*
++ * Allwinner Sun8i Ethernet MAC emulation
++ *
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
++ *
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation, either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#include "qemu/osdep.h"
++#include "qemu/units.h"
++#include "hw/sysbus.h"
++#include "migration/vmstate.h"
++#include "net/net.h"
++#include "hw/irq.h"
++#include "hw/qdev-properties.h"
++#include "qemu/log.h"
++#include "trace.h"
++#include "net/checksum.h"
++#include "qemu/module.h"
++#include "exec/cpu-common.h"
++#include "hw/net/allwinner-sun8i-emac.h"
++
++/* EMAC register offsets */
++enum {
++    REG_BASIC_CTL_0        = 0x0000, /* Basic Control 0 */
++    REG_BASIC_CTL_1        = 0x0004, /* Basic Control 1 */
++    REG_INT_STA            = 0x0008, /* Interrupt Status */
++    REG_INT_EN             = 0x000C, /* Interrupt Enable */
++    REG_TX_CTL_0           = 0x0010, /* Transmit Control 0 */
++    REG_TX_CTL_1           = 0x0014, /* Transmit Control 1 */
++    REG_TX_FLOW_CTL        = 0x001C, /* Transmit Flow Control */
++    REG_TX_DMA_DESC_LIST   = 0x0020, /* Transmit Descriptor List Address */
++    REG_RX_CTL_0           = 0x0024, /* Receive Control 0 */
++    REG_RX_CTL_1           = 0x0028, /* Receive Control 1 */
++    REG_RX_DMA_DESC_LIST   = 0x0034, /* Receive Descriptor List Address */
++    REG_FRM_FLT            = 0x0038, /* Receive Frame Filter */
++    REG_RX_HASH_0          = 0x0040, /* Receive Hash Table 0 */
++    REG_RX_HASH_1          = 0x0044, /* Receive Hash Table 1 */
++    REG_MII_CMD            = 0x0048, /* Management Interface Command */
++    REG_MII_DATA           = 0x004C, /* Management Interface Data */
++    REG_ADDR_HIGH          = 0x0050, /* MAC Address High */
++    REG_ADDR_LOW           = 0x0054, /* MAC Address Low */
++    REG_TX_DMA_STA         = 0x00B0, /* Transmit DMA Status */
++    REG_TX_CUR_DESC        = 0x00B4, /* Transmit Current Descriptor */
++    REG_TX_CUR_BUF         = 0x00B8, /* Transmit Current Buffer */
++    REG_RX_DMA_STA         = 0x00C0, /* Receive DMA Status */
++    REG_RX_CUR_DESC        = 0x00C4, /* Receive Current Descriptor */
++    REG_RX_CUR_BUF         = 0x00C8, /* Receive Current Buffer */
++    REG_RGMII_STA          = 0x00D0, /* RGMII Status */
++};
++
++/* EMAC register flags */
++enum {
++    BASIC_CTL0_100Mbps     = (0b11 << 2),
++    BASIC_CTL0_FD          = (1 << 0),
++    BASIC_CTL1_SOFTRST     = (1 << 0),
++};
++
++enum {
++    INT_STA_RGMII_LINK     = (1 << 16),
++    INT_STA_RX_EARLY       = (1 << 13),
++    INT_STA_RX_OVERFLOW    = (1 << 12),
++    INT_STA_RX_TIMEOUT     = (1 << 11),
++    INT_STA_RX_DMA_STOP    = (1 << 10),
++    INT_STA_RX_BUF_UA      = (1 << 9),
++    INT_STA_RX             = (1 << 8),
++    INT_STA_TX_EARLY       = (1 << 5),
++    INT_STA_TX_UNDERFLOW   = (1 << 4),
++    INT_STA_TX_TIMEOUT     = (1 << 3),
++    INT_STA_TX_BUF_UA      = (1 << 2),
++    INT_STA_TX_DMA_STOP    = (1 << 1),
++    INT_STA_TX             = (1 << 0),
++};
++
++enum {
++    INT_EN_RX_EARLY        = (1 << 13),
++    INT_EN_RX_OVERFLOW     = (1 << 12),
++    INT_EN_RX_TIMEOUT      = (1 << 11),
++    INT_EN_RX_DMA_STOP     = (1 << 10),
++    INT_EN_RX_BUF_UA       = (1 << 9),
++    INT_EN_RX              = (1 << 8),
++    INT_EN_TX_EARLY        = (1 << 5),
++    INT_EN_TX_UNDERFLOW    = (1 << 4),
++    INT_EN_TX_TIMEOUT      = (1 << 3),
++    INT_EN_TX_BUF_UA       = (1 << 2),
++    INT_EN_TX_DMA_STOP     = (1 << 1),
++    INT_EN_TX              = (1 << 0),
++};
++
++enum {
++    TX_CTL0_TX_EN          = (1 << 31),
++    TX_CTL1_TX_DMA_START   = (1 << 31),
++    TX_CTL1_TX_DMA_EN      = (1 << 30),
++    TX_CTL1_TX_FLUSH       = (1 << 0),
++};
++
++enum {
++    RX_CTL0_RX_EN          = (1 << 31),
++    RX_CTL0_STRIP_FCS      = (1 << 28),
++    RX_CTL0_CRC_IPV4       = (1 << 27),
++};
++
++enum {
++    RX_CTL1_RX_DMA_START   = (1 << 31),
++    RX_CTL1_RX_DMA_EN      = (1 << 30),
++    RX_CTL1_RX_MD          = (1 << 1),
++};
++
++enum {
++    RX_FRM_FLT_DIS_ADDR    = (1 << 31),
++};
++
++enum {
++    MII_CMD_PHY_ADDR_SHIFT = (12),
++    MII_CMD_PHY_ADDR_MASK  = (0xf000),
++    MII_CMD_PHY_REG_SHIFT  = (4),
++    MII_CMD_PHY_REG_MASK   = (0xf0),
++    MII_CMD_PHY_RW         = (1 << 1),
++    MII_CMD_PHY_BUSY       = (1 << 0),
++};
++
++enum {
++    TX_DMA_STA_STOP        = (0b000),
++    TX_DMA_STA_RUN_FETCH   = (0b001),
++    TX_DMA_STA_WAIT_STA    = (0b010),
++};
++
++enum {
++    RX_DMA_STA_STOP        = (0b000),
++    RX_DMA_STA_RUN_FETCH   = (0b001),
++    RX_DMA_STA_WAIT_FRM    = (0b011),
++};
++
++/* EMAC register reset values */
++enum {
++    REG_BASIC_CTL_1_RST    = 0x08000000,
++};
++
++/* EMAC constants */
++enum {
++    AW_SUN8I_EMAC_MIN_PKT_SZ  = 64
++};
++
++/* Transmit/receive frame descriptor */
++typedef struct FrameDescriptor {
++    uint32_t status;
++    uint32_t status2;
++    uint32_t addr;
++    uint32_t next;
++} FrameDescriptor;
++
++/* Frame descriptor flags */
++enum {
++    DESC_STATUS_CTL                 = (1 << 31),
++    DESC_STATUS2_BUF_SIZE_MASK      = (0x7ff),
++};
++
++/* Transmit frame descriptor flags */
++enum {
++    TX_DESC_STATUS_LENGTH_ERR       = (1 << 14),
++    TX_DESC_STATUS2_FIRST_DESC      = (1 << 29),
++    TX_DESC_STATUS2_LAST_DESC       = (1 << 30),
++    TX_DESC_STATUS2_CHECKSUM_MASK   = (0x3 << 27),
++};
++
++/* Receive frame descriptor flags */
++enum {
++    RX_DESC_STATUS_FIRST_DESC       = (1 << 9),
++    RX_DESC_STATUS_LAST_DESC        = (1 << 8),
++    RX_DESC_STATUS_FRM_LEN_MASK     = (0x3fff0000),
++    RX_DESC_STATUS_FRM_LEN_SHIFT    = (16),
++    RX_DESC_STATUS_NO_BUF           = (1 << 14),
++    RX_DESC_STATUS_HEADER_ERR       = (1 << 7),
++    RX_DESC_STATUS_LENGTH_ERR       = (1 << 4),
++    RX_DESC_STATUS_CRC_ERR          = (1 << 1),
++    RX_DESC_STATUS_PAYLOAD_ERR      = (1 << 0),
++    RX_DESC_STATUS2_RX_INT_CTL      = (1 << 31),
++};
++
++/* MII register offsets */
++enum {
++    MII_REG_CR                      = (0x0), /* Control */
++    MII_REG_ST                      = (0x1), /* Status */
++    MII_REG_ID_HIGH                 = (0x2), /* Identifier High */
++    MII_REG_ID_LOW                  = (0x3), /* Identifier Low */
++    MII_REG_ADV                     = (0x4), /* Advertised abilities */
++    MII_REG_LPA                     = (0x5), /* Link partner abilities */
++};
++
++/* MII register flags */
++enum {
++    MII_REG_CR_RESET                = (1 << 15),
++    MII_REG_CR_POWERDOWN            = (1 << 11),
++    MII_REG_CR_10Mbit               = (0),
++    MII_REG_CR_100Mbit              = (1 << 13),
++    MII_REG_CR_1000Mbit             = (1 << 6),
++    MII_REG_CR_AUTO_NEG             = (1 << 12),
++    MII_REG_CR_AUTO_NEG_RESTART     = (1 << 9),
++    MII_REG_CR_FULLDUPLEX           = (1 << 8),
++};
++
++enum {
++    MII_REG_ST_100BASE_T4           = (1 << 15),
++    MII_REG_ST_100BASE_X_FD         = (1 << 14),
++    MII_REG_ST_100BASE_X_HD         = (1 << 13),
++    MII_REG_ST_10_FD                = (1 << 12),
++    MII_REG_ST_10_HD                = (1 << 11),
++    MII_REG_ST_100BASE_T2_FD        = (1 << 10),
++    MII_REG_ST_100BASE_T2_HD        = (1 << 9),
++    MII_REG_ST_AUTONEG_COMPLETE     = (1 << 5),
++    MII_REG_ST_AUTONEG_AVAIL        = (1 << 3),
++    MII_REG_ST_LINK_UP              = (1 << 2),
++};
++
++enum {
++    MII_REG_LPA_10_HD               = (1 << 5),
++    MII_REG_LPA_10_FD               = (1 << 6),
++    MII_REG_LPA_100_HD              = (1 << 7),
++    MII_REG_LPA_100_FD              = (1 << 8),
++    MII_REG_LPA_PAUSE               = (1 << 10),
++    MII_REG_LPA_ASYMPAUSE           = (1 << 11),
++};
++
++/* MII constants */
++enum {
++    MII_PHY_ID_HIGH                 = 0x0044,
++    MII_PHY_ID_LOW                  = 0x1400,
++};
++
++static void allwinner_sun8i_emac_mii_set_link(AwSun8iEmacState *s,
++                                              bool link_active)
++{
++    if (link_active) {
++        s->mii_st |= MII_REG_ST_LINK_UP;
++    } else {
++        s->mii_st &= ~MII_REG_ST_LINK_UP;
++    }
++}
++
++static void allwinner_sun8i_emac_mii_reset(AwSun8iEmacState *s,
++                                           bool link_active)
++{
++    s->mii_cr = MII_REG_CR_100Mbit | MII_REG_CR_AUTO_NEG |
++                MII_REG_CR_FULLDUPLEX;
++    s->mii_st = MII_REG_ST_100BASE_T4 | MII_REG_ST_100BASE_X_FD |
++                MII_REG_ST_100BASE_X_HD | MII_REG_ST_10_FD | MII_REG_ST_10_HD |
++                MII_REG_ST_100BASE_T2_FD | MII_REG_ST_100BASE_T2_HD |
++                MII_REG_ST_AUTONEG_COMPLETE | MII_REG_ST_AUTONEG_AVAIL;
++    s->mii_adv = 0;
++
++    allwinner_sun8i_emac_mii_set_link(s, link_active);
++}
++
++static void allwinner_sun8i_emac_mii_cmd(AwSun8iEmacState *s)
++{
++    uint8_t addr, reg;
++
++    addr = (s->mii_cmd & MII_CMD_PHY_ADDR_MASK) >> MII_CMD_PHY_ADDR_SHIFT;
++    reg = (s->mii_cmd & MII_CMD_PHY_REG_MASK) >> MII_CMD_PHY_REG_SHIFT;
++
++    if (addr != s->mii_phy_addr) {
++        return;
++    }
++
++    /* Read or write a PHY register? */
++    if (s->mii_cmd & MII_CMD_PHY_RW) {
++        trace_allwinner_sun8i_emac_mii_write_reg(reg, s->mii_data);
++
++        switch (reg) {
++        case MII_REG_CR:
++            if (s->mii_data & MII_REG_CR_RESET) {
++                allwinner_sun8i_emac_mii_reset(s, s->mii_st &
++                                                  MII_REG_ST_LINK_UP);
++            } else {
++                s->mii_cr = s->mii_data & ~(MII_REG_CR_RESET |
++                                            MII_REG_CR_AUTO_NEG_RESTART);
++            }
++            break;
++        case MII_REG_ADV:
++            s->mii_adv = s->mii_data;
++            break;
++        case MII_REG_ID_HIGH:
++        case MII_REG_ID_LOW:
++        case MII_REG_LPA:
++            break;
++        default:
++            qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: write access to "
++                                     "unknown MII register 0x%x\n", reg);
++            break;
++        }
++    } else {
++        switch (reg) {
++        case MII_REG_CR:
++            s->mii_data = s->mii_cr;
++            break;
++        case MII_REG_ST:
++            s->mii_data = s->mii_st;
++            break;
++        case MII_REG_ID_HIGH:
++            s->mii_data = MII_PHY_ID_HIGH;
++            break;
++        case MII_REG_ID_LOW:
++            s->mii_data = MII_PHY_ID_LOW;
++            break;
++        case MII_REG_ADV:
++            s->mii_data = s->mii_adv;
++            break;
++        case MII_REG_LPA:
++            s->mii_data = MII_REG_LPA_10_HD | MII_REG_LPA_10_FD |
++                          MII_REG_LPA_100_HD | MII_REG_LPA_100_FD |
++                          MII_REG_LPA_PAUSE | MII_REG_LPA_ASYMPAUSE;
++            break;
++        default:
++            qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: read access to "
++                                     "unknown MII register 0x%x\n", reg);
++            s->mii_data = 0;
++            break;
++        }
++
++        trace_allwinner_sun8i_emac_mii_read_reg(reg, s->mii_data);
++    }
++}
++
++static void allwinner_sun8i_emac_update_irq(AwSun8iEmacState *s)
++{
++    qemu_set_irq(s->irq, (s->int_sta & s->int_en) != 0);
++}
++
++static uint32_t allwinner_sun8i_emac_next_desc(FrameDescriptor *desc,
++                                               size_t min_size)
++{
++    uint32_t paddr = desc->next;
++
++    cpu_physical_memory_read(paddr, desc, sizeof(*desc));
++
++    if ((desc->status & DESC_STATUS_CTL) &&
++        (desc->status2 & DESC_STATUS2_BUF_SIZE_MASK) >= min_size) {
++        return paddr;
++    } else {
++        return 0;
++    }
++}
++
++static uint32_t allwinner_sun8i_emac_get_desc(FrameDescriptor *desc,
++                                              uint32_t start_addr,
++                                              size_t min_size)
++{
++    uint32_t desc_addr = start_addr;
++
++    /* Note that the list is a cycle. Last entry points back to the head. */
++    while (desc_addr != 0) {
++        cpu_physical_memory_read(desc_addr, desc, sizeof(*desc));
++
++        if ((desc->status & DESC_STATUS_CTL) &&
++            (desc->status2 & DESC_STATUS2_BUF_SIZE_MASK) >= min_size) {
++            return desc_addr;
++        } else if (desc->next == start_addr) {
++            break;
++        } else {
++            desc_addr = desc->next;
++        }
++    }
++
++    return 0;
++}
++
++static uint32_t allwinner_sun8i_emac_rx_desc(AwSun8iEmacState *s,
++                                             FrameDescriptor *desc,
++                                             size_t min_size)
++{
++    return allwinner_sun8i_emac_get_desc(desc, s->rx_desc_curr, min_size);
++}
++
++static uint32_t allwinner_sun8i_emac_tx_desc(AwSun8iEmacState *s,
++                                             FrameDescriptor *desc,
++                                             size_t min_size)
++{
++    return allwinner_sun8i_emac_get_desc(desc, s->tx_desc_head, min_size);
++}
++
++static void allwinner_sun8i_emac_flush_desc(FrameDescriptor *desc,
++                                            uint32_t phys_addr)
++{
++    cpu_physical_memory_write(phys_addr, desc, sizeof(*desc));
++}
++
++static int allwinner_sun8i_emac_can_receive(NetClientState *nc)
++{
++    AwSun8iEmacState *s = qemu_get_nic_opaque(nc);
++    FrameDescriptor desc;
++
++    return (s->rx_ctl0 & RX_CTL0_RX_EN) &&
++           (allwinner_sun8i_emac_rx_desc(s, &desc, 0) != 0);
++}
++
++static ssize_t allwinner_sun8i_emac_receive(NetClientState *nc,
++                                            const uint8_t *buf,
++                                            size_t size)
++{
++    AwSun8iEmacState *s = qemu_get_nic_opaque(nc);
++    FrameDescriptor desc;
++    size_t bytes_left = size;
++    size_t desc_bytes = 0;
++    size_t pad_fcs_size = 4;
++    size_t padding = 0;
++
++    if (!(s->rx_ctl0 & RX_CTL0_RX_EN)) {
++        return -1;
++    }
++
++    s->rx_desc_curr = allwinner_sun8i_emac_rx_desc(s, &desc,
++                                                   AW_SUN8I_EMAC_MIN_PKT_SZ);
++    if (!s->rx_desc_curr) {
++        s->int_sta |= INT_STA_RX_BUF_UA;
++    }
++
++    /* Keep filling RX descriptors until the whole frame is written */
++    while (s->rx_desc_curr && bytes_left > 0) {
++        desc.status &= ~DESC_STATUS_CTL;
++        desc.status &= ~RX_DESC_STATUS_FRM_LEN_MASK;
++
++        if (bytes_left == size) {
++            desc.status |= RX_DESC_STATUS_FIRST_DESC;
++        }
++
++        if ((desc.status2 & DESC_STATUS2_BUF_SIZE_MASK) <
++            (bytes_left + pad_fcs_size)) {
++            desc_bytes = desc.status2 & DESC_STATUS2_BUF_SIZE_MASK;
++            desc.status |= desc_bytes << RX_DESC_STATUS_FRM_LEN_SHIFT;
++        } else {
++            padding = pad_fcs_size;
++            if (bytes_left < AW_SUN8I_EMAC_MIN_PKT_SZ) {
++                padding += (AW_SUN8I_EMAC_MIN_PKT_SZ - bytes_left);
++            }
++
++            desc_bytes = (bytes_left);
++            desc.status |= RX_DESC_STATUS_LAST_DESC;
++            desc.status |= (bytes_left + padding)
++                            << RX_DESC_STATUS_FRM_LEN_SHIFT;
++        }
++
++        cpu_physical_memory_write(desc.addr, buf, desc_bytes);
++        allwinner_sun8i_emac_flush_desc(&desc, s->rx_desc_curr);
++        trace_allwinner_sun8i_emac_receive(s->rx_desc_curr, desc.addr,
++                                           desc_bytes);
++
++        /* Check if frame needs to raise the receive interrupt */
++        if (!(desc.status2 & RX_DESC_STATUS2_RX_INT_CTL)) {
++            s->int_sta |= INT_STA_RX;
++        }
++
++        /* Increment variables */
++        buf += desc_bytes;
++        bytes_left -= desc_bytes;
++
++        /* Move to the next descriptor */
++        s->rx_desc_curr = allwinner_sun8i_emac_next_desc(&desc, 64);
++        if (!s->rx_desc_curr) {
++            /* Not enough buffer space available */
++            s->int_sta |= INT_STA_RX_BUF_UA;
++            s->rx_desc_curr = s->rx_desc_head;
++            break;
++        }
++    }
++
++    /* Report receive DMA is finished */
++    s->rx_ctl1 &= ~RX_CTL1_RX_DMA_START;
++    allwinner_sun8i_emac_update_irq(s);
++
++    return size;
++}
++
++static void allwinner_sun8i_emac_transmit(AwSun8iEmacState *s)
++{
++    NetClientState *nc = qemu_get_queue(s->nic);
++    FrameDescriptor desc;
++    size_t bytes = 0;
++    size_t packet_bytes = 0;
++    size_t transmitted = 0;
++    static uint8_t packet_buf[2048];
++
++    s->tx_desc_curr = allwinner_sun8i_emac_tx_desc(s, &desc, 0);
++
++    /* Read all transmit descriptors */
++    while (s->tx_desc_curr != 0) {
++
++        /* Read from physical memory into packet buffer */
++        bytes = desc.status2 & DESC_STATUS2_BUF_SIZE_MASK;
++        if (bytes + packet_bytes > sizeof(packet_buf)) {
++            desc.status |= TX_DESC_STATUS_LENGTH_ERR;
++            break;
++        }
++        cpu_physical_memory_read(desc.addr, packet_buf + packet_bytes, bytes);
++        packet_bytes += bytes;
++        desc.status &= ~DESC_STATUS_CTL;
++        allwinner_sun8i_emac_flush_desc(&desc, s->tx_desc_curr);
++
++        /* After the last descriptor, send the packet */
++        if (desc.status2 & TX_DESC_STATUS2_LAST_DESC) {
++            if (desc.status2 & TX_DESC_STATUS2_CHECKSUM_MASK) {
++                net_checksum_calculate(packet_buf, packet_bytes);
++            }
++
++            qemu_send_packet(nc, packet_buf, packet_bytes);
++            trace_allwinner_sun8i_emac_transmit(s->tx_desc_curr, desc.addr,
++                                                bytes);
++
++            packet_bytes = 0;
++            transmitted++;
++        }
++        s->tx_desc_curr = allwinner_sun8i_emac_next_desc(&desc, 0);
++    }
++
++    /* Raise transmit completed interrupt */
++    if (transmitted > 0) {
++        s->int_sta |= INT_STA_TX;
++        s->tx_ctl1 &= ~TX_CTL1_TX_DMA_START;
++        allwinner_sun8i_emac_update_irq(s);
++    }
++}
++
++static void allwinner_sun8i_emac_reset(DeviceState *dev)
++{
++    AwSun8iEmacState *s = AW_SUN8I_EMAC(dev);
++    NetClientState *nc = qemu_get_queue(s->nic);
++
++    trace_allwinner_sun8i_emac_reset();
++
++    s->mii_cmd = 0;
++    s->mii_data = 0;
++    s->basic_ctl0 = 0;
++    s->basic_ctl1 = REG_BASIC_CTL_1_RST;
++    s->int_en = 0;
++    s->int_sta = 0;
++    s->frm_flt = 0;
++    s->rx_ctl0 = 0;
++    s->rx_ctl1 = RX_CTL1_RX_MD;
++    s->rx_desc_head = 0;
++    s->rx_desc_curr = 0;
++    s->tx_ctl0 = 0;
++    s->tx_ctl1 = 0;
++    s->tx_desc_head = 0;
++    s->tx_desc_curr = 0;
++    s->tx_flowctl = 0;
++
++    allwinner_sun8i_emac_mii_reset(s, !nc->link_down);
++}
++
++static uint64_t allwinner_sun8i_emac_read(void *opaque, hwaddr offset,
++                                          unsigned size)
++{
++    AwSun8iEmacState *s = AW_SUN8I_EMAC(opaque);
++    uint64_t value = 0;
++    FrameDescriptor desc;
++
++    switch (offset) {
++    case REG_BASIC_CTL_0:       /* Basic Control 0 */
++        value = s->basic_ctl0;
++        break;
++    case REG_BASIC_CTL_1:       /* Basic Control 1 */
++        value = s->basic_ctl1;
++        break;
++    case REG_INT_STA:           /* Interrupt Status */
++        value = s->int_sta;
++        break;
++    case REG_INT_EN:            /* Interupt Enable */
++        value = s->int_en;
++        break;
++    case REG_TX_CTL_0:          /* Transmit Control 0 */
++        value = s->tx_ctl0;
++        break;
++    case REG_TX_CTL_1:          /* Transmit Control 1 */
++        value = s->tx_ctl1;
++        break;
++    case REG_TX_FLOW_CTL:       /* Transmit Flow Control */
++        value = s->tx_flowctl;
++        break;
++    case REG_TX_DMA_DESC_LIST:  /* Transmit Descriptor List Address */
++        value = s->tx_desc_head;
++        break;
++    case REG_RX_CTL_0:          /* Receive Control 0 */
++        value = s->rx_ctl0;
++        break;
++    case REG_RX_CTL_1:          /* Receive Control 1 */
++        value = s->rx_ctl1;
++        break;
++    case REG_RX_DMA_DESC_LIST:  /* Receive Descriptor List Address */
++        value = s->rx_desc_head;
++        break;
++    case REG_FRM_FLT:           /* Receive Frame Filter */
++        value = s->frm_flt;
++        break;
++    case REG_RX_HASH_0:         /* Receive Hash Table 0 */
++    case REG_RX_HASH_1:         /* Receive Hash Table 1 */
++        break;
++    case REG_MII_CMD:           /* Management Interface Command */
++        value = s->mii_cmd;
++        break;
++    case REG_MII_DATA:          /* Management Interface Data */
++        value = s->mii_data;
++        break;
++    case REG_ADDR_HIGH:         /* MAC Address High */
++        value = *(((uint32_t *) (s->conf.macaddr.a)) + 1);
++        break;
++    case REG_ADDR_LOW:          /* MAC Address Low */
++        value = *(uint32_t *) (s->conf.macaddr.a);
++        break;
++    case REG_TX_DMA_STA:        /* Transmit DMA Status */
++        break;
++    case REG_TX_CUR_DESC:       /* Transmit Current Descriptor */
++        value = s->tx_desc_curr;
++        break;
++    case REG_TX_CUR_BUF:        /* Transmit Current Buffer */
++        if (s->tx_desc_curr != 0) {
++            cpu_physical_memory_read(s->tx_desc_curr, &desc, sizeof(desc));
++            value = desc.addr;
++        } else {
++            value = 0;
++        }
++        break;
++    case REG_RX_DMA_STA:        /* Receive DMA Status */
++        break;
++    case REG_RX_CUR_DESC:       /* Receive Current Descriptor */
++        value = s->rx_desc_curr;
++        break;
++    case REG_RX_CUR_BUF:        /* Receive Current Buffer */
++        if (s->rx_desc_curr != 0) {
++            cpu_physical_memory_read(s->rx_desc_curr, &desc, sizeof(desc));
++            value = desc.addr;
++        } else {
++            value = 0;
++        }
++        break;
++    case REG_RGMII_STA:         /* RGMII Status */
++        break;
++    default:
++        qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: read access to unknown "
++                                 "EMAC register 0x" TARGET_FMT_plx "\n",
++                                  offset);
++    }
++
++    trace_allwinner_sun8i_emac_read(offset, value);
++    return value;
++}
++
++static void allwinner_sun8i_emac_write(void *opaque, hwaddr offset,
++                                       uint64_t value, unsigned size)
++{
++    AwSun8iEmacState *s = AW_SUN8I_EMAC(opaque);
++    NetClientState *nc = qemu_get_queue(s->nic);
++
++    trace_allwinner_sun8i_emac_write(offset, value);
++
++    switch (offset) {
++    case REG_BASIC_CTL_0:       /* Basic Control 0 */
++        s->basic_ctl0 = value;
++        break;
++    case REG_BASIC_CTL_1:       /* Basic Control 1 */
++        if (value & BASIC_CTL1_SOFTRST) {
++            allwinner_sun8i_emac_reset(DEVICE(s));
++            value &= ~BASIC_CTL1_SOFTRST;
++        }
++        s->basic_ctl1 = value;
++        if (allwinner_sun8i_emac_can_receive(nc)) {
++            qemu_flush_queued_packets(nc);
++        }
++        break;
++    case REG_INT_STA:           /* Interrupt Status */
++        s->int_sta &= ~value;
++        allwinner_sun8i_emac_update_irq(s);
++        break;
++    case REG_INT_EN:            /* Interrupt Enable */
++        s->int_en = value;
++        allwinner_sun8i_emac_update_irq(s);
++        break;
++    case REG_TX_CTL_0:          /* Transmit Control 0 */
++        s->tx_ctl0 = value;
++        break;
++    case REG_TX_CTL_1:          /* Transmit Control 1 */
++        s->tx_ctl1 = value;
++        if (value & TX_CTL1_TX_DMA_EN) {
++            allwinner_sun8i_emac_transmit(s);
++        }
++        break;
++    case REG_TX_FLOW_CTL:       /* Transmit Flow Control */
++        s->tx_flowctl = value;
++        break;
++    case REG_TX_DMA_DESC_LIST:  /* Transmit Descriptor List Address */
++        s->tx_desc_head = value;
++        s->tx_desc_curr = value;
++        break;
++    case REG_RX_CTL_0:          /* Receive Control 0 */
++        s->rx_ctl0 = value;
++        break;
++    case REG_RX_CTL_1:          /* Receive Control 1 */
++        s->rx_ctl1 = value | RX_CTL1_RX_MD;
++        if ((value & RX_CTL1_RX_DMA_EN) &&
++             allwinner_sun8i_emac_can_receive(nc)) {
++            qemu_flush_queued_packets(nc);
++        }
++        break;
++    case REG_RX_DMA_DESC_LIST:  /* Receive Descriptor List Address */
++        s->rx_desc_head = value;
++        s->rx_desc_curr = value;
++        break;
++    case REG_FRM_FLT:           /* Receive Frame Filter */
++        s->frm_flt = value;
++        break;
++    case REG_RX_HASH_0:         /* Receive Hash Table 0 */
++    case REG_RX_HASH_1:         /* Receive Hash Table 1 */
++        break;
++    case REG_MII_CMD:           /* Management Interface Command */
++        s->mii_cmd = value & ~MII_CMD_PHY_BUSY;
++        allwinner_sun8i_emac_mii_cmd(s);
++        break;
++    case REG_MII_DATA:          /* Management Interface Data */
++        s->mii_data = value;
++        break;
++    case REG_ADDR_HIGH:         /* MAC Address High */
++        s->conf.macaddr.a[4] = (value & 0xff);
++        s->conf.macaddr.a[5] = (value & 0xff00) >> 8;
++        break;
++    case REG_ADDR_LOW:          /* MAC Address Low */
++        s->conf.macaddr.a[0] = (value & 0xff);
++        s->conf.macaddr.a[1] = (value & 0xff00) >> 8;
++        s->conf.macaddr.a[2] = (value & 0xff0000) >> 16;
++        s->conf.macaddr.a[3] = (value & 0xff000000) >> 24;
++        break;
++    case REG_TX_DMA_STA:        /* Transmit DMA Status */
++    case REG_TX_CUR_DESC:       /* Transmit Current Descriptor */
++    case REG_TX_CUR_BUF:        /* Transmit Current Buffer */
++    case REG_RX_DMA_STA:        /* Receive DMA Status */
++    case REG_RX_CUR_DESC:       /* Receive Current Descriptor */
++    case REG_RX_CUR_BUF:        /* Receive Current Buffer */
++    case REG_RGMII_STA:         /* RGMII Status */
++        break;
++    default:
++        qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: write access to unknown "
++                                 "EMAC register 0x" TARGET_FMT_plx "\n",
++                                  offset);
++    }
++}
++
++static void allwinner_sun8i_emac_set_link(NetClientState *nc)
++{
++    AwSun8iEmacState *s = qemu_get_nic_opaque(nc);
++
++    trace_allwinner_sun8i_emac_set_link(!nc->link_down);
++    allwinner_sun8i_emac_mii_set_link(s, !nc->link_down);
++}
++
++static const MemoryRegionOps allwinner_sun8i_emac_mem_ops = {
++    .read = allwinner_sun8i_emac_read,
++    .write = allwinner_sun8i_emac_write,
++    .endianness = DEVICE_NATIVE_ENDIAN,
++    .valid = {
++        .min_access_size = 4,
++        .max_access_size = 4,
++    },
++    .impl.min_access_size = 4,
++};
++
++static NetClientInfo net_allwinner_sun8i_emac_info = {
++    .type = NET_CLIENT_DRIVER_NIC,
++    .size = sizeof(NICState),
++    .can_receive = allwinner_sun8i_emac_can_receive,
++    .receive = allwinner_sun8i_emac_receive,
++    .link_status_changed = allwinner_sun8i_emac_set_link,
++};
++
++static void allwinner_sun8i_emac_init(Object *obj)
++{
++    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
++    AwSun8iEmacState *s = AW_SUN8I_EMAC(obj);
++
++    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_sun8i_emac_mem_ops,
++                           s, TYPE_AW_SUN8I_EMAC, 64 * KiB);
++    sysbus_init_mmio(sbd, &s->iomem);
++    sysbus_init_irq(sbd, &s->irq);
++}
++
++static void allwinner_sun8i_emac_realize(DeviceState *dev, Error **errp)
++{
++    AwSun8iEmacState *s = AW_SUN8I_EMAC(dev);
++
++    qemu_macaddr_default_if_unset(&s->conf.macaddr);
++    s->nic = qemu_new_nic(&net_allwinner_sun8i_emac_info, &s->conf,
++                           object_get_typename(OBJECT(dev)), dev->id, s);
++    qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
++}
++
++static Property allwinner_sun8i_emac_properties[] = {
++    DEFINE_NIC_PROPERTIES(AwSun8iEmacState, conf),
++    DEFINE_PROP_UINT8("phy-addr", AwSun8iEmacState, mii_phy_addr, 0),
++    DEFINE_PROP_END_OF_LIST(),
++};
++
++static int allwinner_sun8i_emac_post_load(void *opaque, int version_id)
++{
++    AwSun8iEmacState *s = opaque;
++
++    allwinner_sun8i_emac_set_link(qemu_get_queue(s->nic));
++
++    return 0;
++}
++
++static const VMStateDescription vmstate_aw_emac = {
++    .name = "allwinner-sun8i-emac",
++    .version_id = 1,
++    .minimum_version_id = 1,
++    .post_load = allwinner_sun8i_emac_post_load,
++    .fields = (VMStateField[]) {
++        VMSTATE_UINT8(mii_phy_addr, AwSun8iEmacState),
++        VMSTATE_UINT32(mii_cmd, AwSun8iEmacState),
++        VMSTATE_UINT32(mii_data, AwSun8iEmacState),
++        VMSTATE_UINT32(mii_cr, AwSun8iEmacState),
++        VMSTATE_UINT32(mii_st, AwSun8iEmacState),
++        VMSTATE_UINT32(mii_adv, AwSun8iEmacState),
++        VMSTATE_UINT32(basic_ctl0, AwSun8iEmacState),
++        VMSTATE_UINT32(basic_ctl1, AwSun8iEmacState),
++        VMSTATE_UINT32(int_en, AwSun8iEmacState),
++        VMSTATE_UINT32(int_sta, AwSun8iEmacState),
++        VMSTATE_UINT32(frm_flt, AwSun8iEmacState),
++        VMSTATE_UINT32(rx_ctl0, AwSun8iEmacState),
++        VMSTATE_UINT32(rx_ctl1, AwSun8iEmacState),
++        VMSTATE_UINT32(rx_desc_head, AwSun8iEmacState),
++        VMSTATE_UINT32(rx_desc_curr, AwSun8iEmacState),
++        VMSTATE_UINT32(tx_ctl0, AwSun8iEmacState),
++        VMSTATE_UINT32(tx_ctl1, AwSun8iEmacState),
++        VMSTATE_UINT32(tx_desc_head, AwSun8iEmacState),
++        VMSTATE_UINT32(tx_desc_curr, AwSun8iEmacState),
++        VMSTATE_UINT32(tx_flowctl, AwSun8iEmacState),
++        VMSTATE_END_OF_LIST()
++    }
++};
++
++static void allwinner_sun8i_emac_class_init(ObjectClass *klass, void *data)
++{
++    DeviceClass *dc = DEVICE_CLASS(klass);
++
++    dc->realize = allwinner_sun8i_emac_realize;
++    dc->reset = allwinner_sun8i_emac_reset;
++    dc->vmsd = &vmstate_aw_emac;
++    device_class_set_props(dc, allwinner_sun8i_emac_properties);
++}
++
++static const TypeInfo allwinner_sun8i_emac_info = {
++    .name           = TYPE_AW_SUN8I_EMAC,
++    .parent         = TYPE_SYS_BUS_DEVICE,
++    .instance_size  = sizeof(AwSun8iEmacState),
++    .instance_init  = allwinner_sun8i_emac_init,
++    .class_init     = allwinner_sun8i_emac_class_init,
++};
++
++static void allwinner_sun8i_emac_register_types(void)
++{
++    type_register_static(&allwinner_sun8i_emac_info);
++}
++
++type_init(allwinner_sun8i_emac_register_types)
+diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/Kconfig
++++ b/hw/arm/Kconfig
+@@ -XXX,XX +XXX,XX @@ config ALLWINNER_A10
+ config ALLWINNER_H3
+     bool
+     select ALLWINNER_A10_PIT
++    select ALLWINNER_SUN8I_EMAC
+     select SERIAL
+     select ARM_TIMER
+     select ARM_GIC
+diff --git a/hw/net/Kconfig b/hw/net/Kconfig
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/net/Kconfig
++++ b/hw/net/Kconfig
+@@ -XXX,XX +XXX,XX @@ config MIPSNET
+ config ALLWINNER_EMAC
+     bool
++config ALLWINNER_SUN8I_EMAC
++    bool
++
+ config IMX_FEC
+     bool
+diff --git a/hw/net/trace-events b/hw/net/trace-events
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/net/trace-events
++++ b/hw/net/trace-events
+@@ -XXX,XX +XXX,XX @@
+ # See docs/devel/tracing.txt for syntax documentation.
++# allwinner-sun8i-emac.c
++allwinner_sun8i_emac_mii_write_reg(uint32_t reg, uint32_t value) "MII write: reg=0x%" PRIx32 " value=0x%" PRIx32
++allwinner_sun8i_emac_mii_read_reg(uint32_t reg, uint32_t value) "MII read: reg=0x%" PRIx32 " value=0x%" PRIx32
++allwinner_sun8i_emac_receive(uint32_t desc, uint32_t paddr, uint32_t bytes) "RX packet: desc=0x%" PRIx32 " paddr=0x%" PRIx32 " bytes=%" PRIu32
++allwinner_sun8i_emac_transmit(uint32_t desc, uint32_t paddr, uint32_t bytes) "TX packet: desc=0x%" PRIx32 " paddr=0x%" PRIx32 " bytes=%" PRIu32
++allwinner_sun8i_emac_reset(void) "HW reset"
++allwinner_sun8i_emac_set_link(bool active) "Set link: active=%u"
++allwinner_sun8i_emac_read(uint64_t offset, uint64_t val) "MMIO read: offset=0x%" PRIx64 " value=0x%" PRIx64
++allwinner_sun8i_emac_write(uint64_t offset, uint64_t val) "MMIO write: offset=0x%" PRIx64 " value=0x%" PRIx64
++
+ # etraxfs_eth.c
+ mdio_phy_read(int regnum, uint16_t value) "read phy_reg:%d value:0x%04x"
+ mdio_phy_write(int regnum, uint16_t value) "write phy_reg:%d value:0x%04x"
+--
+.20.1

-New patch
+[PULL 21/36] hw/arm/allwinner-h3: add Boot ROM support
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
+A real Allwinner H3 SoC contains a Boot ROM which is the
+first code that runs right after the SoC is powered on.
+The Boot ROM is responsible for loading user code (e.g. a bootloader)
+from any of the supported external devices and writing the downloaded
+code to internal SRAM. After loading the SoC begins executing the code
+written to SRAM.
+This commits adds emulation of the Boot ROM firmware setup functionality
+by loading user code from SD card in the A1 SRAM. While the A1 SRAM is
+KiB, we limit the size to 32KiB because the real H3 Boot ROM also rejects
+sizes larger than 32KiB. For reference, this behaviour is documented
+by the Linux Sunxi project wiki at:
+  https://linux-sunxi.org/BROM#U-Boot_SPL_limitations
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-11-nieklinnenbank@gmail.com
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ include/hw/arm/allwinner-h3.h | 21 +++++++++++++++++++++
+ hw/arm/allwinner-h3.c         | 17 +++++++++++++++++
+ hw/arm/orangepi.c             |  5 +++++
+files changed, 43 insertions(+)
+diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/allwinner-h3.h
++++ b/include/hw/arm/allwinner-h3.h
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/sd/allwinner-sdhost.h"
+ #include "hw/net/allwinner-sun8i-emac.h"
+ #include "target/arm/cpu.h"
++#include "sysemu/block-backend.h"
+ /**
+  * Allwinner H3 device list
+@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
+     MemoryRegion sram_c;
+ } AwH3State;
++/**
++ * Emulate Boot ROM firmware setup functionality.
++ *
++ * A real Allwinner H3 SoC contains a Boot ROM
++ * which is the first code that runs right after
++ * the SoC is powered on. The Boot ROM is responsible
++ * for loading user code (e.g. a bootloader) from any
++ * of the supported external devices and writing the
++ * downloaded code to internal SRAM. After loading the SoC
++ * begins executing the code written to SRAM.
++ *
++ * This function emulates the Boot ROM by copying 32 KiB
++ * of data from the given block device and writes it to
++ * the start of the first internal SRAM memory.
++ *
++ * @s: Allwinner H3 state object pointer
++ * @blk: Block backend device object pointer
++ */
++void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk);
++
+ #endif /* HW_ARM_ALLWINNER_H3_H */
+diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/allwinner-h3.c
++++ b/hw/arm/allwinner-h3.c
+@@ -XXX,XX +XXX,XX @@
+ #include "hw/char/serial.h"
+ #include "hw/misc/unimp.h"
+ #include "hw/usb/hcd-ehci.h"
++#include "hw/loader.h"
+ #include "sysemu/sysemu.h"
+ #include "hw/arm/allwinner-h3.h"
+@@ -XXX,XX +XXX,XX @@ enum {
+     AW_H3_GIC_NUM_SPI       = 128
+ };
++void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk)
++{
++    const int64_t rom_size = 32 * KiB;
++    g_autofree uint8_t *buffer = g_new0(uint8_t, rom_size);
++
++    if (blk_pread(blk, 8 * KiB, buffer, rom_size) < 0) {
++        error_setg(&error_fatal, "%s: failed to read BlockBackend data",
++                   __func__);
++        return;
++    }
++
++    rom_add_blob("allwinner-h3.bootrom", buffer, rom_size,
++                  rom_size, s->memmap[AW_H3_SRAM_A1],
++                  NULL, NULL, NULL, NULL, false);
++}
++
+ static void allwinner_h3_init(Object *obj)
+ {
+     AwH3State *s = AW_H3(obj);
+diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/orangepi.c
++++ b/hw/arm/orangepi.c
+@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
+     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
+                                 machine->ram);
++    /* Load target kernel or start using BootROM */
++    if (!machine->kernel_filename && blk_is_available(blk)) {
++        /* Use Boot ROM to copy data from SD card to SRAM */
++        allwinner_h3_bootrom_setup(h3, blk);
++    }
+     orangepi_binfo.loader_start = h3->memmap[AW_H3_SDRAM];
+     orangepi_binfo.ram_size = machine->ram_size;
+     arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
+--
+.20.1

-[Qemu-devel] [PULL 11/16] target/arm: Implement FCMP for fp16
+[PULL 22/36] hw/arm/allwinner-h3: add SDRAM controller device
-From: Alex Bennée <alex.bennee@linaro.org>
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
-These where missed out from the rest of the half-precision work.
+In the Allwinner H3 SoC the SDRAM controller is responsible
 for interfacing with the external Synchronous Dynamic Random
 Access Memory (SDRAM). Types of memory that the SDRAM controller
 supports are DDR2/DDR3 and capacities of up to 2GiB. This commit
 adds emulation support of the Allwinner H3 SDRAM controller.
-Cc: qemu-stable@nongnu.org
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
-Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
-Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-12-nieklinnenbank@gmail.com
 Tested-by: Alex Bennée <alex.bennee@linaro.org>
 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 Message-id: 20180512003217.9105-9-richard.henderson@linaro.org
 [rth: Diagnose lack of FP16 before fp_access_check]
 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/helper-a64.h    |  2 +
+ hw/misc/Makefile.objs                |   1 +
- target/arm/helper-a64.c    | 10 +++++
+ include/hw/arm/allwinner-h3.h        |   5 +
- target/arm/translate-a64.c | 88 ++++++++++++++++++++++++++++++--------
+ include/hw/misc/allwinner-h3-dramc.h | 106 ++++++++
-files changed, 83 insertions(+), 17 deletions(-)
+ hw/arm/allwinner-h3.c                |  19 +-
  hw/arm/orangepi.c                    |   6 +
  hw/misc/allwinner-h3-dramc.c         | 358 +++++++++++++++++++++++++++
  hw/misc/trace-events                 |  10 +
 files changed, 502 insertions(+), 3 deletions(-)
  create mode 100644 include/hw/misc/allwinner-h3-dramc.h
  create mode 100644 hw/misc/allwinner-h3-dramc.c
-diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h
+diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/helper-a64.h
+--- a/hw/misc/Makefile.objs
-+++ b/target/arm/helper-a64.h
++++ b/hw/misc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
  obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
 +common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-dramc.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
  common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sid.o
  common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
 diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
 index XXXXXXX..XXXXXXX 100644
 --- a/include/hw/arm/allwinner-h3.h
 +++ b/include/hw/arm/allwinner-h3.h
 @@ -XXX,XX +XXX,XX @@
- DEF_HELPER_FLAGS_2(udiv64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
+ #include "hw/intc/arm_gic.h"
- DEF_HELPER_FLAGS_2(sdiv64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
+ #include "hw/misc/allwinner-h3-ccu.h"
- DEF_HELPER_FLAGS_1(rbit64, TCG_CALL_NO_RWG_SE, i64, i64)
+ #include "hw/misc/allwinner-cpucfg.h"
-+DEF_HELPER_3(vfp_cmph_a64, i64, f16, f16, ptr)
++#include "hw/misc/allwinner-h3-dramc.h"
-+DEF_HELPER_3(vfp_cmpeh_a64, i64, f16, f16, ptr)
+ #include "hw/misc/allwinner-h3-sysctrl.h"
- DEF_HELPER_3(vfp_cmps_a64, i64, f32, f32, ptr)
+ #include "hw/misc/allwinner-sid.h"
- DEF_HELPER_3(vfp_cmpes_a64, i64, f32, f32, ptr)
+ #include "hw/sd/allwinner-sdhost.h"
- DEF_HELPER_3(vfp_cmpd_a64, i64, f64, f64, ptr)
+@@ -XXX,XX +XXX,XX @@ enum {
-diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
+     AW_H3_UART2,
      AW_H3_UART3,
      AW_H3_EMAC,
 +    AW_H3_DRAMCOM,
 +    AW_H3_DRAMCTL,
 +    AW_H3_DRAMPHY,
      AW_H3_GIC_DIST,
      AW_H3_GIC_CPU,
      AW_H3_GIC_HYP,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
      AwA10PITState timer;
      AwH3ClockCtlState ccu;
      AwCpuCfgState cpucfg;
 +    AwH3DramCtlState dramc;
      AwH3SysCtrlState sysctrl;
      AwSidState sid;
      AwSdHostState mmc0;
 diff --git a/include/hw/misc/allwinner-h3-dramc.h b/include/hw/misc/allwinner-h3-dramc.h
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/include/hw/misc/allwinner-h3-dramc.h
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner H3 SDRAM Controller emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#ifndef HW_MISC_ALLWINNER_H3_DRAMC_H
 +#define HW_MISC_ALLWINNER_H3_DRAMC_H
 +
 +#include "qom/object.h"
 +#include "hw/sysbus.h"
 +#include "exec/hwaddr.h"
 +
 +/**
 + * Constants
 + * @{
 + */
 +
 +/** Highest register address used by DRAMCOM module */
 +#define AW_H3_DRAMCOM_REGS_MAXADDR  (0x804)
 +
 +/** Total number of known DRAMCOM registers */
 +#define AW_H3_DRAMCOM_REGS_NUM      (AW_H3_DRAMCOM_REGS_MAXADDR / \
 +                                     sizeof(uint32_t))
 +
 +/** Highest register address used by DRAMCTL module */
 +#define AW_H3_DRAMCTL_REGS_MAXADDR  (0x88c)
 +
 +/** Total number of known DRAMCTL registers */
 +#define AW_H3_DRAMCTL_REGS_NUM      (AW_H3_DRAMCTL_REGS_MAXADDR / \
 +                                     sizeof(uint32_t))
 +
 +/** Highest register address used by DRAMPHY module */
 +#define AW_H3_DRAMPHY_REGS_MAXADDR  (0x4)
 +
 +/** Total number of known DRAMPHY registers */
 +#define AW_H3_DRAMPHY_REGS_NUM      (AW_H3_DRAMPHY_REGS_MAXADDR / \
 +                                     sizeof(uint32_t))
 +
 +/** @} */
 +
 +/**
 + * Object model
 + * @{
 + */
 +
 +#define TYPE_AW_H3_DRAMC "allwinner-h3-dramc"
 +#define AW_H3_DRAMC(obj) \
 +    OBJECT_CHECK(AwH3DramCtlState, (obj), TYPE_AW_H3_DRAMC)
 +
 +/** @} */
 +
 +/**
 + * Allwinner H3 SDRAM Controller object instance state.
 + */
 +typedef struct AwH3DramCtlState {
 +    /*< private >*/
 +    SysBusDevice parent_obj;
 +    /*< public >*/
 +
 +    /** Physical base address for start of RAM */
 +    hwaddr ram_addr;
 +
 +    /** Total RAM size in megabytes */
 +    uint32_t ram_size;
 +
 +    /**
 +     * @name Memory Regions
 +     * @{
 +     */
 +
 +    MemoryRegion row_mirror;       /**< Simulates rows for RAM size detection */
 +    MemoryRegion row_mirror_alias; /**< Alias of the row which is mirrored */
 +    MemoryRegion dramcom_iomem;    /**< DRAMCOM module I/O registers */
 +    MemoryRegion dramctl_iomem;    /**< DRAMCTL module I/O registers */
 +    MemoryRegion dramphy_iomem;    /**< DRAMPHY module I/O registers */
 +
 +    /** @} */
 +
 +    /**
 +     * @name Hardware Registers
 +     * @{
 +     */
 +
 +    uint32_t dramcom[AW_H3_DRAMCOM_REGS_NUM]; /**< Array of DRAMCOM registers */
 +    uint32_t dramctl[AW_H3_DRAMCTL_REGS_NUM]; /**< Array of DRAMCTL registers */
 +    uint32_t dramphy[AW_H3_DRAMPHY_REGS_NUM] ;/**< Array of DRAMPHY registers */
 +
 +    /** @} */
 +
 +} AwH3DramCtlState;
 +
 +#endif /* HW_MISC_ALLWINNER_H3_DRAMC_H */
 diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/helper-a64.c
+--- a/hw/arm/allwinner-h3.c
-+++ b/target/arm/helper-a64.c
++++ b/hw/arm/allwinner-h3.c
-@@ -XXX,XX +XXX,XX @@ static inline uint32_t float_rel_to_flags(int res)
+@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
-     return flags;
+     [AW_H3_UART2]      = 0x01c28800,
      [AW_H3_UART3]      = 0x01c28c00,
      [AW_H3_EMAC]       = 0x01c30000,
 +    [AW_H3_DRAMCOM]    = 0x01c62000,
 +    [AW_H3_DRAMCTL]    = 0x01c63000,
 +    [AW_H3_DRAMPHY]    = 0x01c65000,
      [AW_H3_GIC_DIST]   = 0x01c81000,
      [AW_H3_GIC_CPU]    = 0x01c82000,
      [AW_H3_GIC_HYP]    = 0x01c84000,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
      { "scr",       0x01c2c400, 1 * KiB },
      { "gpu",       0x01c40000, 64 * KiB },
      { "hstmr",     0x01c60000, 4 * KiB },
 -    { "dramcom",   0x01c62000, 4 * KiB },
 -    { "dramctl0",  0x01c63000, 4 * KiB },
 -    { "dramphy0",  0x01c65000, 4 * KiB },
      { "spi0",      0x01c68000, 4 * KiB },
      { "spi1",      0x01c69000, 4 * KiB },
      { "csi",       0x01cb0000, 320 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
      sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
                            TYPE_AW_SUN8I_EMAC);
 +
 +    sysbus_init_child_obj(obj, "dramc", &s->dramc, sizeof(s->dramc),
 +                          TYPE_AW_H3_DRAMC);
 +    object_property_add_alias(obj, "ram-addr", OBJECT(&s->dramc),
 +                             "ram-addr", &error_abort);
 +    object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
 +                              "ram-size", &error_abort);
  }
-+uint64_t HELPER(vfp_cmph_a64)(float16 x, float16 y, void *fp_status)
+ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
-+{
+@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
-+    return float_rel_to_flags(float16_compare_quiet(x, y, fp_status));
+                    qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3),
-+}
+, serial_hd(3), DEVICE_NATIVE_ENDIAN);
-+
-+uint64_t HELPER(vfp_cmpeh_a64)(float16 x, float16 y, void *fp_status)
++    /* DRAMC */
-+{
++    qdev_init_nofail(DEVICE(&s->dramc));
-+    return float_rel_to_flags(float16_compare(x, y, fp_status));
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 0, s->memmap[AW_H3_DRAMCOM]);
-+}
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, s->memmap[AW_H3_DRAMCTL]);
-+
++    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, s->memmap[AW_H3_DRAMPHY]);
- uint64_t HELPER(vfp_cmps_a64)(float32 x, float32 y, void *fp_status)
++
- {
+     /* Unimplemented devices */
-     return float_rel_to_flags(float32_compare_quiet(x, y, fp_status));
+     for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+         create_unimplemented_device(unimplemented[i].device_name,
 diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/hw/arm/orangepi.c
-+++ b/target/arm/translate-a64.c
++++ b/hw/arm/orangepi.c
-@@ -XXX,XX +XXX,XX @@ static void disas_data_proc_reg(DisasContext *s, uint32_t insn)
+@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
-     }
+     /* Setup EMAC properties */
- }
+     object_property_set_int(OBJECT(&h3->emac), 1, "phy-addr", &error_abort);
--static void handle_fp_compare(DisasContext *s, bool is_double,
++    /* DRAMC */
-+static void handle_fp_compare(DisasContext *s, int size,
++    object_property_set_uint(OBJECT(h3), h3->memmap[AW_H3_SDRAM],
-                               unsigned int rn, unsigned int rm,
++                             "ram-addr", &error_abort);
-                               bool cmp_with_zero, bool signal_all_nans)
++    object_property_set_int(OBJECT(h3), machine->ram_size / MiB, "ram-size",
- {
++                            &error_abort);
-     TCGv_i64 tcg_flags = tcg_temp_new_i64();
++
--    TCGv_ptr fpst = get_fpstatus_ptr(false);
+     /* Mark H3 object realized */
-+    TCGv_ptr fpst = get_fpstatus_ptr(size == MO_16);
+     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
--    if (is_double) {
+diff --git a/hw/misc/allwinner-h3-dramc.c b/hw/misc/allwinner-h3-dramc.c
-+    if (size == MO_64) {
+new file mode 100644
-         TCGv_i64 tcg_vn, tcg_vm;
+index XXXXXXX..XXXXXXX
+--- /dev/null
-         tcg_vn = read_fp_dreg(s, rn);
++++ b/hw/misc/allwinner-h3-dramc.c
-@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, bool is_double,
+@@ -XXX,XX +XXX,XX @@
-         tcg_temp_free_i64(tcg_vn);
++/*
-         tcg_temp_free_i64(tcg_vm);
++ * Allwinner H3 SDRAM Controller emulation
-     } else {
++ *
--        TCGv_i32 tcg_vn, tcg_vm;
++ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
-+        TCGv_i32 tcg_vn = tcg_temp_new_i32();
++ *
-+        TCGv_i32 tcg_vm = tcg_temp_new_i32();
++ * This program is free software: you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
--        tcg_vn = read_fp_sreg(s, rn);
++ * the Free Software Foundation, either version 2 of the License, or
-+        read_vec_element_i32(s, tcg_vn, rn, 0, size);
++ * (at your option) any later version.
-         if (cmp_with_zero) {
++ *
--            tcg_vm = tcg_const_i32(0);
++ * This program is distributed in the hope that it will be useful,
-+            tcg_gen_movi_i32(tcg_vm, 0);
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-         } else {
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--            tcg_vm = read_fp_sreg(s, rm);
++ * GNU General Public License for more details.
-+            read_vec_element_i32(s, tcg_vm, rm, 0, size);
++ *
-         }
++ * You should have received a copy of the GNU General Public License
--        if (signal_all_nans) {
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
--            gen_helper_vfp_cmpes_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
++ */
--        } else {
++
--            gen_helper_vfp_cmps_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
++#include "qemu/osdep.h"
-+
++#include "qemu/units.h"
-+        switch (size) {
++#include "qemu/error-report.h"
-+        case MO_32:
++#include "hw/sysbus.h"
-+            if (signal_all_nans) {
++#include "migration/vmstate.h"
-+                gen_helper_vfp_cmpes_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
++#include "qemu/log.h"
-+            } else {
++#include "qemu/module.h"
-+                gen_helper_vfp_cmps_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
++#include "exec/address-spaces.h"
-+            }
++#include "hw/qdev-properties.h"
-+            break;
++#include "qapi/error.h"
-+        case MO_16:
++#include "hw/misc/allwinner-h3-dramc.h"
-+            if (signal_all_nans) {
++#include "trace.h"
-+                gen_helper_vfp_cmpeh_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
++
-+            } else {
++#define REG_INDEX(offset)    (offset / sizeof(uint32_t))
-+                gen_helper_vfp_cmph_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
++
-+            }
++/* DRAMCOM register offsets */
-+            break;
++enum {
-+        default:
++    REG_DRAMCOM_CR    = 0x0000, /* Control Register */
-+            g_assert_not_reached();
++};
-         }
++
-+
++/* DRAMCTL register offsets */
-         tcg_temp_free_i32(tcg_vn);
++enum {
-         tcg_temp_free_i32(tcg_vm);
++    REG_DRAMCTL_PIR   = 0x0000, /* PHY Initialization Register */
-     }
++    REG_DRAMCTL_PGSR  = 0x0010, /* PHY General Status Register */
-@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, bool is_double,
++    REG_DRAMCTL_STATR = 0x0018, /* Status Register */
- static void disas_fp_compare(DisasContext *s, uint32_t insn)
++};
- {
++
-     unsigned int mos, type, rm, op, rn, opc, op2r;
++/* DRAMCTL register flags */
-+    int size;
++enum {
++    REG_DRAMCTL_PGSR_INITDONE = (1 << 0),
-     mos = extract32(insn, 29, 3);
++};
--    type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
++
-+    type = extract32(insn, 22, 2);
++enum {
-     rm = extract32(insn, 16, 5);
++    REG_DRAMCTL_STATR_ACTIVE  = (1 << 0),
-     op = extract32(insn, 14, 2);
++};
-     rn = extract32(insn, 5, 5);
++
-     opc = extract32(insn, 3, 2);
++static void allwinner_h3_dramc_map_rows(AwH3DramCtlState *s, uint8_t row_bits,
-     op2r = extract32(insn, 0, 3);
++                                        uint8_t bank_bits, uint16_t page_size)
++{
--    if (mos || op || op2r || type > 1) {
++    /*
-+    if (mos || op || op2r) {
++     * This function simulates row addressing behavior when bootloader
-+        unallocated_encoding(s);
++     * software attempts to detect the amount of available SDRAM. In U-Boot
-+        return;
++     * the controller is configured with the widest row addressing available.
-+    }
++     * Then a pattern is written to RAM at an offset on the row boundary size.
-+
++     * If the value read back equals the value read back from the
-+    switch (type) {
++     * start of RAM, the bootloader knows the amount of row bits.
-+    case 0:
++     *
-+        size = MO_32;
++     * This function inserts a mirrored memory region when the configured row
-+        break;
++     * bits are not matching the actual emulated memory, to simulate the
-+    case 1:
++     * same behavior on hardware as expected by the bootloader.
-+        size = MO_64;
++     */
-+        break;
++    uint8_t row_bits_actual = 0;
-+    case 3:
++
-+        size = MO_16;
++    /* Calculate the actual row bits using the ram_size property */
-+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
++    for (uint8_t i = 8; i < 12; i++) {
 +        if (1 << i == s->ram_size) {
 +            row_bits_actual = i + 3;
 +            break;
 +        }
-+        /* fallthru */
++    }
 +
 +    if (s->ram_size == (1 << (row_bits - 3))) {
 +        /* When row bits is the expected value, remove the mirror */
 +        memory_region_set_enabled(&s->row_mirror_alias, false);
 +        trace_allwinner_h3_dramc_rowmirror_disable();
 +
 +    } else if (row_bits_actual) {
 +        /* Row bits not matching ram_size, install the rows mirror */
 +        hwaddr row_mirror = s->ram_addr + ((1 << (row_bits_actual +
 +                                                  bank_bits)) * page_size);
 +
 +        memory_region_set_enabled(&s->row_mirror_alias, true);
 +        memory_region_set_address(&s->row_mirror_alias, row_mirror);
 +
 +        trace_allwinner_h3_dramc_rowmirror_enable(row_mirror);
 +    }
 +}
 +
 +static uint64_t allwinner_h3_dramcom_read(void *opaque, hwaddr offset,
 +                                          unsigned size)
 +{
 +    const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    if (idx >= AW_H3_DRAMCOM_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    trace_allwinner_h3_dramcom_read(offset, s->dramcom[idx], size);
 +
 +    return s->dramcom[idx];
 +}
 +
 +static void allwinner_h3_dramcom_write(void *opaque, hwaddr offset,
 +                                       uint64_t val, unsigned size)
 +{
 +    AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    trace_allwinner_h3_dramcom_write(offset, val, size);
 +
 +    if (idx >= AW_H3_DRAMCOM_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return;
 +    }
 +
 +    switch (offset) {
 +    case REG_DRAMCOM_CR:   /* Control Register */
 +        allwinner_h3_dramc_map_rows(s, ((val >> 4) & 0xf) + 1,
 +                                       ((val >> 2) & 0x1) + 2,
 +                                       1 << (((val >> 8) & 0xf) + 3));
 +        break;
 +    default:
-         unallocated_encoding(s);
++        break;
-         return;
++    };
-     }
++
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_compare(DisasContext *s, uint32_t insn)
++    s->dramcom[idx] = (uint32_t) val;
-         return;
++}
-     }
++
++static uint64_t allwinner_h3_dramctl_read(void *opaque, hwaddr offset,
--    handle_fp_compare(s, type, rn, rm, opc & 1, opc & 2);
++                                          unsigned size)
-+    handle_fp_compare(s, size, rn, rm, opc & 1, opc & 2);
++{
- }
++    const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
++    const uint32_t idx = REG_INDEX(offset);
- /* Floating point conditional compare
++
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
++    if (idx >= AW_H3_DRAMCTL_REGS_NUM) {
-     unsigned int mos, type, rm, cond, rn, op, nzcv;
++        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
-     TCGv_i64 tcg_flags;
++                      __func__, (uint32_t)offset);
-     TCGLabel *label_continue = NULL;
++        return 0;
-+    int size;
++    }
++
-     mos = extract32(insn, 29, 3);
++    trace_allwinner_h3_dramctl_read(offset, s->dramctl[idx], size);
--    type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
++
-+    type = extract32(insn, 22, 2);
++    return s->dramctl[idx];
-     rm = extract32(insn, 16, 5);
++}
-     cond = extract32(insn, 12, 4);
++
-     rn = extract32(insn, 5, 5);
++static void allwinner_h3_dramctl_write(void *opaque, hwaddr offset,
-     op = extract32(insn, 4, 1);
++                                       uint64_t val, unsigned size)
-     nzcv = extract32(insn, 0, 4);
++{
++    AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
--    if (mos || type > 1) {
++    const uint32_t idx = REG_INDEX(offset);
-+    if (mos) {
++
-+        unallocated_encoding(s);
++    trace_allwinner_h3_dramctl_write(offset, val, size);
 +
 +    if (idx >= AW_H3_DRAMCTL_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return;
 +    }
 +
-+    switch (type) {
++    switch (offset) {
-+    case 0:
++    case REG_DRAMCTL_PIR:    /* PHY Initialization Register */
-+        size = MO_32;
++        s->dramctl[REG_INDEX(REG_DRAMCTL_PGSR)] |= REG_DRAMCTL_PGSR_INITDONE;
 +        s->dramctl[REG_INDEX(REG_DRAMCTL_STATR)] |= REG_DRAMCTL_STATR_ACTIVE;
 +        break;
-+    case 1:
++    default:
 +        size = MO_64;
 +        break;
-+    case 3:
++    }
-+        size = MO_16;
++
-+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
++    s->dramctl[idx] = (uint32_t) val;
 +}
 +
 +static uint64_t allwinner_h3_dramphy_read(void *opaque, hwaddr offset,
 +                                          unsigned size)
 +{
 +    const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    if (idx >= AW_H3_DRAMPHY_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    trace_allwinner_h3_dramphy_read(offset, s->dramphy[idx], size);
 +
 +    return s->dramphy[idx];
 +}
 +
 +static void allwinner_h3_dramphy_write(void *opaque, hwaddr offset,
 +                                       uint64_t val, unsigned size)
 +{
 +    AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
 +    const uint32_t idx = REG_INDEX(offset);
 +
 +    trace_allwinner_h3_dramphy_write(offset, val, size);
 +
 +    if (idx >= AW_H3_DRAMPHY_REGS_NUM) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return;
 +    }
 +
 +    s->dramphy[idx] = (uint32_t) val;
 +}
 +
 +static const MemoryRegionOps allwinner_h3_dramcom_ops = {
 +    .read = allwinner_h3_dramcom_read,
 +    .write = allwinner_h3_dramcom_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static const MemoryRegionOps allwinner_h3_dramctl_ops = {
 +    .read = allwinner_h3_dramctl_read,
 +    .write = allwinner_h3_dramctl_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static const MemoryRegionOps allwinner_h3_dramphy_ops = {
 +    .read = allwinner_h3_dramphy_read,
 +    .write = allwinner_h3_dramphy_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static void allwinner_h3_dramc_reset(DeviceState *dev)
 +{
 +    AwH3DramCtlState *s = AW_H3_DRAMC(dev);
 +
 +    /* Set default values for registers */
 +    memset(&s->dramcom, 0, sizeof(s->dramcom));
 +    memset(&s->dramctl, 0, sizeof(s->dramctl));
 +    memset(&s->dramphy, 0, sizeof(s->dramphy));
 +}
 +
 +static void allwinner_h3_dramc_realize(DeviceState *dev, Error **errp)
 +{
 +    AwH3DramCtlState *s = AW_H3_DRAMC(dev);
 +
 +    /* Only power of 2 RAM sizes from 256MiB up to 2048MiB are supported */
 +    for (uint8_t i = 8; i < 13; i++) {
 +        if (1 << i == s->ram_size) {
 +            break;
++        } else if (i == 12) {
++            error_report("%s: ram-size %u MiB is not supported",
++                          __func__, s->ram_size);
++            exit(1);
 +        }
-+        /* fallthru */
++    }
-+    default:
++
-         unallocated_encoding(s);
++    /* Setup row mirror mappings */
-         return;
++    memory_region_init_ram(&s->row_mirror, OBJECT(s),
-     }
++                           "allwinner-h3-dramc.row-mirror",
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
++                            4 * KiB, &error_abort);
-         gen_set_label(label_match);
++    memory_region_add_subregion_overlap(get_system_memory(), s->ram_addr,
-     }
++                                       &s->row_mirror, 10);
++
--    handle_fp_compare(s, type, rn, rm, false, op);
++    memory_region_init_alias(&s->row_mirror_alias, OBJECT(s),
-+    handle_fp_compare(s, size, rn, rm, false, op);
++                            "allwinner-h3-dramc.row-mirror-alias",
++                            &s->row_mirror, 0, 4 * KiB);
-     if (cond < 0x0e) {
++    memory_region_add_subregion_overlap(get_system_memory(),
-         gen_set_label(label_continue);
++                                        s->ram_addr + 1 * MiB,
 +                                       &s->row_mirror_alias, 10);
 +    memory_region_set_enabled(&s->row_mirror_alias, false);
 +}
 +
 +static void allwinner_h3_dramc_init(Object *obj)
 +{
 +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 +    AwH3DramCtlState *s = AW_H3_DRAMC(obj);
 +
 +    /* DRAMCOM registers */
 +    memory_region_init_io(&s->dramcom_iomem, OBJECT(s),
 +                          &allwinner_h3_dramcom_ops, s,
 +                           TYPE_AW_H3_DRAMC, 4 * KiB);
 +    sysbus_init_mmio(sbd, &s->dramcom_iomem);
 +
 +    /* DRAMCTL registers */
 +    memory_region_init_io(&s->dramctl_iomem, OBJECT(s),
 +                          &allwinner_h3_dramctl_ops, s,
 +                           TYPE_AW_H3_DRAMC, 4 * KiB);
 +    sysbus_init_mmio(sbd, &s->dramctl_iomem);
 +
 +    /* DRAMPHY registers */
 +    memory_region_init_io(&s->dramphy_iomem, OBJECT(s),
 +                          &allwinner_h3_dramphy_ops, s,
 +                          TYPE_AW_H3_DRAMC, 4 * KiB);
 +    sysbus_init_mmio(sbd, &s->dramphy_iomem);
 +}
 +
 +static Property allwinner_h3_dramc_properties[] = {
 +    DEFINE_PROP_UINT64("ram-addr", AwH3DramCtlState, ram_addr, 0x0),
 +    DEFINE_PROP_UINT32("ram-size", AwH3DramCtlState, ram_size, 256 * MiB),
 +    DEFINE_PROP_END_OF_LIST()
 +};
 +
 +static const VMStateDescription allwinner_h3_dramc_vmstate = {
 +    .name = "allwinner-h3-dramc",
 +    .version_id = 1,
 +    .minimum_version_id = 1,
 +    .fields = (VMStateField[]) {
 +        VMSTATE_UINT32_ARRAY(dramcom, AwH3DramCtlState, AW_H3_DRAMCOM_REGS_NUM),
 +        VMSTATE_UINT32_ARRAY(dramctl, AwH3DramCtlState, AW_H3_DRAMCTL_REGS_NUM),
 +        VMSTATE_UINT32_ARRAY(dramphy, AwH3DramCtlState, AW_H3_DRAMPHY_REGS_NUM),
 +        VMSTATE_END_OF_LIST()
 +    }
 +};
 +
 +static void allwinner_h3_dramc_class_init(ObjectClass *klass, void *data)
 +{
 +    DeviceClass *dc = DEVICE_CLASS(klass);
 +
 +    dc->reset = allwinner_h3_dramc_reset;
 +    dc->vmsd = &allwinner_h3_dramc_vmstate;
 +    dc->realize = allwinner_h3_dramc_realize;
 +    device_class_set_props(dc, allwinner_h3_dramc_properties);
 +}
 +
 +static const TypeInfo allwinner_h3_dramc_info = {
 +    .name          = TYPE_AW_H3_DRAMC,
 +    .parent        = TYPE_SYS_BUS_DEVICE,
 +    .instance_init = allwinner_h3_dramc_init,
 +    .instance_size = sizeof(AwH3DramCtlState),
 +    .class_init    = allwinner_h3_dramc_class_init,
 +};
 +
 +static void allwinner_h3_dramc_register(void)
 +{
 +    type_register_static(&allwinner_h3_dramc_info);
 +}
 +
 +type_init(allwinner_h3_dramc_register)
 diff --git a/hw/misc/trace-events b/hw/misc/trace-events
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/misc/trace-events
 +++ b/hw/misc/trace-events
@@ -XXX,XX +XXX,XX @@ allwinner_cpucfg_cpu_reset(uint8_t cpu_id, uint32_t reset_addr) "id %u, reset_ad
  allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
  allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +# allwinner-h3-dramc.c
 +allwinner_h3_dramc_rowmirror_disable(void) "Disable row mirror"
 +allwinner_h3_dramc_rowmirror_enable(uint64_t addr) "Enable row mirror: addr 0x%" PRIx64
 +allwinner_h3_dramcom_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_h3_dramcom_write(uint64_t offset, uint64_t data, unsigned size) "Write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_h3_dramctl_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_h3_dramctl_write(uint64_t offset, uint64_t data, unsigned size) "Write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_h3_dramphy_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +allwinner_h3_dramphy_write(uint64_t offset, uint64_t data, unsigned size) "write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 +
  # allwinner-sid.c
  allwinner_sid_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
  allwinner_sid_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 07/16] target/arm: Implement FCVT (scalar, fixed-point) for fp16
+[PULL 23/36] hw/arm/allwinner: add RTC device support
-From: Richard Henderson <richard.henderson@linaro.org>
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
-Cc: qemu-stable@nongnu.org
+Allwinner System-on-Chips usually contain a Real Time Clock (RTC)
 for non-volatile system date and time keeping. This commit adds a generic
 Allwinner RTC device that supports the RTC devices found in Allwinner SoC
 family sun4i (A10), sun7i (A20) and sun6i and newer (A31, H2+, H3, etc).
 The following RTC functionality and features are implemented:
  * Year-Month-Day read/write
  * Hour-Minute-Second read/write
  * General Purpose storage
 The following boards are extended with the RTC device:
  * Cubieboard (hw/arm/cubieboard.c)
  * Orange Pi PC (hw/arm/orangepi.c)
 Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+Message-id: 20200311221854.30370-13-nieklinnenbank@gmail.com
 Tested-by: Alex Bennée <alex.bennee@linaro.org>
 Message-id: 20180512003217.9105-5-richard.henderson@linaro.org
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 17 +++++++++++++++--
+ hw/rtc/Makefile.objs           |   1 +
-file changed, 15 insertions(+), 2 deletions(-)
+ include/hw/arm/allwinner-a10.h |   2 +
  include/hw/arm/allwinner-h3.h  |   3 +
  include/hw/rtc/allwinner-rtc.h | 134 +++++++++++
  hw/arm/allwinner-a10.c         |   8 +
  hw/arm/allwinner-h3.c          |   9 +-
  hw/rtc/allwinner-rtc.c         | 411 +++++++++++++++++++++++++++++++++
  hw/rtc/trace-events            |   4 +
 files changed, 571 insertions(+), 1 deletion(-)
  create mode 100644 include/hw/rtc/allwinner-rtc.h
  create mode 100644 hw/rtc/allwinner-rtc.c
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/hw/rtc/Makefile.objs b/hw/rtc/Makefile.objs
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/hw/rtc/Makefile.objs
-+++ b/target/arm/translate-a64.c
++++ b/hw/rtc/Makefile.objs
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn)
+@@ -XXX,XX +XXX,XX @@ obj-$(CONFIG_MC146818RTC) += mc146818rtc.o
-     bool sf = extract32(insn, 31, 1);
+ common-obj-$(CONFIG_SUN4V_RTC) += sun4v-rtc.o
-     bool itof;
+ common-obj-$(CONFIG_ASPEED_SOC) += aspeed_rtc.o
+ common-obj-$(CONFIG_GOLDFISH_RTC) += goldfish_rtc.o
--    if (sbit || (type > 1)
++common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-rtc.o
--        || (!sf && scale < 32)) {
+diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
-+    if (sbit || (!sf && scale < 32)) {
+index XXXXXXX..XXXXXXX 100644
-+        unallocated_encoding(s);
+--- a/include/hw/arm/allwinner-a10.h
 +++ b/include/hw/arm/allwinner-a10.h
@@ -XXX,XX +XXX,XX @@
  #include "hw/ide/ahci.h"
  #include "hw/usb/hcd-ohci.h"
  #include "hw/usb/hcd-ehci.h"
 +#include "hw/rtc/allwinner-rtc.h"
  #include "target/arm/cpu.h"
@@ -XXX,XX +XXX,XX @@ typedef struct AwA10State {
      AwEmacState emac;
      AllwinnerAHCIState sata;
      AwSdHostState mmc0;
 +    AwRtcState rtc;
      MemoryRegion sram_a;
      EHCISysBusState ehci[AW_A10_NUM_USB];
      OHCISysBusState ohci[AW_A10_NUM_USB];
 diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
 index XXXXXXX..XXXXXXX 100644
 --- a/include/hw/arm/allwinner-h3.h
 +++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
  #include "hw/misc/allwinner-sid.h"
  #include "hw/sd/allwinner-sdhost.h"
  #include "hw/net/allwinner-sun8i-emac.h"
 +#include "hw/rtc/allwinner-rtc.h"
  #include "target/arm/cpu.h"
  #include "sysemu/block-backend.h"
@@ -XXX,XX +XXX,XX @@ enum {
      AW_H3_GIC_CPU,
      AW_H3_GIC_HYP,
      AW_H3_GIC_VCPU,
 +    AW_H3_RTC,
      AW_H3_CPUCFG,
      AW_H3_SDRAM
  };
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
      AwSidState sid;
      AwSdHostState mmc0;
      AwSun8iEmacState emac;
 +    AwRtcState rtc;
      GICState gic;
      MemoryRegion sram_a1;
      MemoryRegion sram_a2;
 diff --git a/include/hw/rtc/allwinner-rtc.h b/include/hw/rtc/allwinner-rtc.h
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/include/hw/rtc/allwinner-rtc.h
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner Real Time Clock emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#ifndef HW_MISC_ALLWINNER_RTC_H
 +#define HW_MISC_ALLWINNER_RTC_H
 +
 +#include "qom/object.h"
 +#include "hw/sysbus.h"
 +
 +/**
 + * Constants
 + * @{
 + */
 +
 +/** Highest register address used by RTC device */
 +#define AW_RTC_REGS_MAXADDR     (0x200)
 +
 +/** Total number of known registers */
 +#define AW_RTC_REGS_NUM         (AW_RTC_REGS_MAXADDR / sizeof(uint32_t))
 +
 +/** @} */
 +
 +/**
 + * Object model types
 + * @{
 + */
 +
 +/** Generic Allwinner RTC device (abstract) */
 +#define TYPE_AW_RTC          "allwinner-rtc"
 +
 +/** Allwinner RTC sun4i family (A10, A12) */
 +#define TYPE_AW_RTC_SUN4I    TYPE_AW_RTC "-sun4i"
 +
 +/** Allwinner RTC sun6i family and newer (A31, H2+, H3, etc) */
 +#define TYPE_AW_RTC_SUN6I    TYPE_AW_RTC "-sun6i"
 +
 +/** Allwinner RTC sun7i family (A20) */
 +#define TYPE_AW_RTC_SUN7I    TYPE_AW_RTC "-sun7i"
 +
 +/** @} */
 +
 +/**
 + * Object model macros
 + * @{
 + */
 +
 +#define AW_RTC(obj) \
 +    OBJECT_CHECK(AwRtcState, (obj), TYPE_AW_RTC)
 +#define AW_RTC_CLASS(klass) \
 +     OBJECT_CLASS_CHECK(AwRtcClass, (klass), TYPE_AW_RTC)
 +#define AW_RTC_GET_CLASS(obj) \
 +     OBJECT_GET_CLASS(AwRtcClass, (obj), TYPE_AW_RTC)
 +
 +/** @} */
 +
 +/**
 + * Allwinner RTC per-object instance state.
 + */
 +typedef struct AwRtcState {
 +    /*< private >*/
 +    SysBusDevice parent_obj;
 +    /*< public >*/
 +
 +    /**
 +     * Actual year represented by the device when year counter is zero
 +     *
 +     * Can be overridden by the user using the corresponding 'base-year'
 +     * property. The base year used by the target OS driver can vary, for
 +     * example the Linux driver for sun6i uses 1970 while NetBSD uses 2000.
 +     */
 +    int base_year;
 +
 +    /** Maps I/O registers in physical memory */
 +    MemoryRegion iomem;
 +
 +    /** Array of hardware registers */
 +    uint32_t regs[AW_RTC_REGS_NUM];
 +
 +} AwRtcState;
 +
 +/**
 + * Allwinner RTC class-level struct.
 + *
 + * This struct is filled by each sunxi device specific code
 + * such that the generic code can use this struct to support
 + * all devices.
 + */
 +typedef struct AwRtcClass {
 +    /*< private >*/
 +    SysBusDeviceClass parent_class;
 +    /*< public >*/
 +
 +    /** Defines device specific register map */
 +    const uint8_t *regmap;
 +
 +    /** Size of the regmap in bytes */
 +    size_t regmap_size;
 +
 +    /**
 +     * Read device specific register
 +     *
 +     * @offset: register offset to read
 +     * @return true if register read successful, false otherwise
 +     */
 +    bool (*read)(AwRtcState *s, uint32_t offset);
 +
 +    /**
 +     * Write device specific register
 +     *
 +     * @offset: register offset to write
 +     * @data: value to set in register
 +     * @return true if register write successful, false otherwise
 +     */
 +    bool (*write)(AwRtcState *s, uint32_t offset, uint32_t data);
 +
 +} AwRtcClass;
 +
 +#endif /* HW_MISC_ALLWINNER_RTC_H */
 diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/allwinner-a10.c
 +++ b/hw/arm/allwinner-a10.c
@@ -XXX,XX +XXX,XX @@
  #define AW_A10_EHCI_BASE        0x01c14000
  #define AW_A10_OHCI_BASE        0x01c14400
  #define AW_A10_SATA_BASE        0x01c18000
 +#define AW_A10_RTC_BASE         0x01c20d00
  static void aw_a10_init(Object *obj)
  {
@@ -XXX,XX +XXX,XX @@ static void aw_a10_init(Object *obj)
      sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
                            TYPE_AW_SDHOST_SUN4I);
 +
 +    sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
 +                          TYPE_AW_RTC_SUN4I);
  }
  static void aw_a10_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
      sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0, qdev_get_gpio_in(dev, 32));
      object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
                                "sd-bus", &error_abort);
 +
 +    /* RTC */
 +    qdev_init_nofail(DEVICE(&s->rtc));
 +    sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->rtc), 0, AW_A10_RTC_BASE, 10);
  }
  static void aw_a10_class_init(ObjectClass *oc, void *data)
 diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/allwinner-h3.c
 +++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
      [AW_H3_GIC_CPU]    = 0x01c82000,
      [AW_H3_GIC_HYP]    = 0x01c84000,
      [AW_H3_GIC_VCPU]   = 0x01c86000,
 +    [AW_H3_RTC]        = 0x01f00000,
      [AW_H3_CPUCFG]     = 0x01f01c00,
      [AW_H3_SDRAM]      = 0x40000000
  };
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
      { "csi",       0x01cb0000, 320 * KiB },
      { "tve",       0x01e00000, 64 * KiB },
      { "hdmi",      0x01ee0000, 128 * KiB },
 -    { "rtc",       0x01f00000, 1 * KiB },
      { "r_timer",   0x01f00800, 1 * KiB },
      { "r_intc",    0x01f00c00, 1 * KiB },
      { "r_wdog",    0x01f01000, 1 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
                               "ram-addr", &error_abort);
      object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
                                "ram-size", &error_abort);
 +
 +    sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
 +                          TYPE_AW_RTC_SUN6I);
  }
  static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
      sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, s->memmap[AW_H3_DRAMCTL]);
      sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, s->memmap[AW_H3_DRAMPHY]);
 +    /* RTC */
 +    qdev_init_nofail(DEVICE(&s->rtc));
 +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, s->memmap[AW_H3_RTC]);
 +
      /* Unimplemented devices */
      for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
          create_unimplemented_device(unimplemented[i].device_name,
 diff --git a/hw/rtc/allwinner-rtc.c b/hw/rtc/allwinner-rtc.c
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/hw/rtc/allwinner-rtc.c
@@ -XXX,XX +XXX,XX @@
 +/*
 + * Allwinner Real Time Clock emulation
 + *
 + * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
 + *
 + * This program is free software: you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License as published by
 + * the Free Software Foundation, either version 2 of the License, or
 + * (at your option) any later version.
 + *
 + * This program is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 + * GNU General Public License for more details.
 + *
 + * You should have received a copy of the GNU General Public License
 + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 + */
 +
 +#include "qemu/osdep.h"
 +#include "qemu/units.h"
 +#include "hw/sysbus.h"
 +#include "migration/vmstate.h"
 +#include "qemu/log.h"
 +#include "qemu/module.h"
 +#include "qemu-common.h"
 +#include "hw/qdev-properties.h"
 +#include "hw/rtc/allwinner-rtc.h"
 +#include "trace.h"
 +
 +/* RTC registers */
 +enum {
 +    REG_LOSC = 1,        /* Low Oscillator Control */
 +    REG_YYMMDD,          /* RTC Year-Month-Day */
 +    REG_HHMMSS,          /* RTC Hour-Minute-Second */
 +    REG_ALARM1_WKHHMMSS, /* Alarm1 Week Hour-Minute-Second */
 +    REG_ALARM1_EN,       /* Alarm1 Enable */
 +    REG_ALARM1_IRQ_EN,   /* Alarm1 IRQ Enable */
 +    REG_ALARM1_IRQ_STA,  /* Alarm1 IRQ Status */
 +    REG_GP0,             /* General Purpose Register 0 */
 +    REG_GP1,             /* General Purpose Register 1 */
 +    REG_GP2,             /* General Purpose Register 2 */
 +    REG_GP3,             /* General Purpose Register 3 */
 +
 +    /* sun4i registers */
 +    REG_ALARM1_DDHHMMSS, /* Alarm1 Day Hour-Minute-Second */
 +    REG_CPUCFG,          /* CPU Configuration Register */
 +
 +    /* sun6i registers */
 +    REG_LOSC_AUTOSTA,    /* LOSC Auto Switch Status */
 +    REG_INT_OSC_PRE,     /* Internal OSC Clock Prescaler */
 +    REG_ALARM0_COUNTER,  /* Alarm0 Counter */
 +    REG_ALARM0_CUR_VLU,  /* Alarm0 Counter Current Value */
 +    REG_ALARM0_ENABLE,   /* Alarm0 Enable */
 +    REG_ALARM0_IRQ_EN,   /* Alarm0 IRQ Enable */
 +    REG_ALARM0_IRQ_STA,  /* Alarm0 IRQ Status */
 +    REG_ALARM_CONFIG,    /* Alarm Config */
 +    REG_LOSC_OUT_GATING, /* LOSC Output Gating Register */
 +    REG_GP4,             /* General Purpose Register 4 */
 +    REG_GP5,             /* General Purpose Register 5 */
 +    REG_GP6,             /* General Purpose Register 6 */
 +    REG_GP7,             /* General Purpose Register 7 */
 +    REG_RTC_DBG,         /* RTC Debug Register */
 +    REG_GPL_HOLD_OUT,    /* GPL Hold Output Register */
 +    REG_VDD_RTC,         /* VDD RTC Regulate Register */
 +    REG_IC_CHARA,        /* IC Characteristics Register */
 +};
 +
 +/* RTC register flags */
 +enum {
 +    REG_LOSC_YMD   = (1 << 7),
 +    REG_LOSC_HMS   = (1 << 8),
 +};
 +
 +/* RTC sun4i register map (offset to name) */
 +const uint8_t allwinner_rtc_sun4i_regmap[] = {
 +    [0x0000] = REG_LOSC,
 +    [0x0004] = REG_YYMMDD,
 +    [0x0008] = REG_HHMMSS,
 +    [0x000C] = REG_ALARM1_DDHHMMSS,
 +    [0x0010] = REG_ALARM1_WKHHMMSS,
 +    [0x0014] = REG_ALARM1_EN,
 +    [0x0018] = REG_ALARM1_IRQ_EN,
 +    [0x001C] = REG_ALARM1_IRQ_STA,
 +    [0x0020] = REG_GP0,
 +    [0x0024] = REG_GP1,
 +    [0x0028] = REG_GP2,
 +    [0x002C] = REG_GP3,
 +    [0x003C] = REG_CPUCFG,
 +};
 +
 +/* RTC sun6i register map (offset to name) */
 +const uint8_t allwinner_rtc_sun6i_regmap[] = {
 +    [0x0000] = REG_LOSC,
 +    [0x0004] = REG_LOSC_AUTOSTA,
 +    [0x0008] = REG_INT_OSC_PRE,
 +    [0x0010] = REG_YYMMDD,
 +    [0x0014] = REG_HHMMSS,
 +    [0x0020] = REG_ALARM0_COUNTER,
 +    [0x0024] = REG_ALARM0_CUR_VLU,
 +    [0x0028] = REG_ALARM0_ENABLE,
 +    [0x002C] = REG_ALARM0_IRQ_EN,
 +    [0x0030] = REG_ALARM0_IRQ_STA,
 +    [0x0040] = REG_ALARM1_WKHHMMSS,
 +    [0x0044] = REG_ALARM1_EN,
 +    [0x0048] = REG_ALARM1_IRQ_EN,
 +    [0x004C] = REG_ALARM1_IRQ_STA,
 +    [0x0050] = REG_ALARM_CONFIG,
 +    [0x0060] = REG_LOSC_OUT_GATING,
 +    [0x0100] = REG_GP0,
 +    [0x0104] = REG_GP1,
 +    [0x0108] = REG_GP2,
 +    [0x010C] = REG_GP3,
 +    [0x0110] = REG_GP4,
 +    [0x0114] = REG_GP5,
 +    [0x0118] = REG_GP6,
 +    [0x011C] = REG_GP7,
 +    [0x0170] = REG_RTC_DBG,
 +    [0x0180] = REG_GPL_HOLD_OUT,
 +    [0x0190] = REG_VDD_RTC,
 +    [0x01F0] = REG_IC_CHARA,
 +};
 +
 +static bool allwinner_rtc_sun4i_read(AwRtcState *s, uint32_t offset)
 +{
 +    /* no sun4i specific registers currently implemented */
 +    return false;
 +}
 +
 +static bool allwinner_rtc_sun4i_write(AwRtcState *s, uint32_t offset,
 +                                      uint32_t data)
 +{
 +    /* no sun4i specific registers currently implemented */
 +    return false;
 +}
 +
 +static bool allwinner_rtc_sun6i_read(AwRtcState *s, uint32_t offset)
 +{
 +    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
 +
 +    switch (c->regmap[offset]) {
 +    case REG_GP4:             /* General Purpose Register 4 */
 +    case REG_GP5:             /* General Purpose Register 5 */
 +    case REG_GP6:             /* General Purpose Register 6 */
 +    case REG_GP7:             /* General Purpose Register 7 */
 +        return true;
 +    default:
 +        break;
 +    }
 +    return false;
 +}
 +
 +static bool allwinner_rtc_sun6i_write(AwRtcState *s, uint32_t offset,
 +                                      uint32_t data)
 +{
 +    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
 +
 +    switch (c->regmap[offset]) {
 +    case REG_GP4:             /* General Purpose Register 4 */
 +    case REG_GP5:             /* General Purpose Register 5 */
 +    case REG_GP6:             /* General Purpose Register 6 */
 +    case REG_GP7:             /* General Purpose Register 7 */
 +        return true;
 +    default:
 +        break;
 +    }
 +    return false;
 +}
 +
 +static uint64_t allwinner_rtc_read(void *opaque, hwaddr offset,
 +                                   unsigned size)
 +{
 +    AwRtcState *s = AW_RTC(opaque);
 +    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
 +    uint64_t val = 0;
 +
 +    if (offset >= c->regmap_size) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    if (!c->regmap[offset]) {
 +            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid register 0x%04x\n",
 +                          __func__, (uint32_t)offset);
 +        return 0;
 +    }
 +
 +    switch (c->regmap[offset]) {
 +    case REG_LOSC:       /* Low Oscillator Control */
 +        val = s->regs[REG_LOSC];
 +        s->regs[REG_LOSC] &= ~(REG_LOSC_YMD | REG_LOSC_HMS);
 +        break;
 +    case REG_YYMMDD:     /* RTC Year-Month-Day */
 +    case REG_HHMMSS:     /* RTC Hour-Minute-Second */
 +    case REG_GP0:        /* General Purpose Register 0 */
 +    case REG_GP1:        /* General Purpose Register 1 */
 +    case REG_GP2:        /* General Purpose Register 2 */
 +    case REG_GP3:        /* General Purpose Register 3 */
 +        val = s->regs[c->regmap[offset]];
 +        break;
 +    default:
 +        if (!c->read(s, offset)) {
 +            qemu_log_mask(LOG_UNIMP, "%s: unimplemented register 0x%04x\n",
 +                          __func__, (uint32_t)offset);
 +        }
 +        val = s->regs[c->regmap[offset]];
 +        break;
 +    }
 +
 +    trace_allwinner_rtc_read(offset, val);
 +    return val;
 +}
 +
 +static void allwinner_rtc_write(void *opaque, hwaddr offset,
 +                                uint64_t val, unsigned size)
 +{
 +    AwRtcState *s = AW_RTC(opaque);
 +    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
 +
 +    if (offset >= c->regmap_size) {
 +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
 +                      __func__, (uint32_t)offset);
 +        return;
 +    }
 +
-+    switch (type) {
++    if (!c->regmap[offset]) {
-+    case 0: /* float32 */
++            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid register 0x%04x\n",
-+    case 1: /* float64 */
++                          __func__, (uint32_t)offset);
-+        break;
++        return;
-+    case 3: /* float16 */
++    }
-+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
++
-+            break;
++    trace_allwinner_rtc_write(offset, val);
 +
 +    switch (c->regmap[offset]) {
 +    case REG_YYMMDD:     /* RTC Year-Month-Day */
 +        s->regs[REG_YYMMDD] = val;
 +        s->regs[REG_LOSC]  |= REG_LOSC_YMD;
 +        break;
 +    case REG_HHMMSS:     /* RTC Hour-Minute-Second */
 +        s->regs[REG_HHMMSS] = val;
 +        s->regs[REG_LOSC]  |= REG_LOSC_HMS;
 +        break;
 +    case REG_GP0:        /* General Purpose Register 0 */
 +    case REG_GP1:        /* General Purpose Register 1 */
 +    case REG_GP2:        /* General Purpose Register 2 */
 +    case REG_GP3:        /* General Purpose Register 3 */
 +        s->regs[c->regmap[offset]] = val;
 +        break;
 +    default:
 +        if (!c->write(s, offset, val)) {
 +            qemu_log_mask(LOG_UNIMP, "%s: unimplemented register 0x%04x\n",
 +                          __func__, (uint32_t)offset);
 +        }
-+        /* fallthru */
++        break;
-+    default:
++    }
-         unallocated_encoding(s);
++}
-         return;
++
-     }
++static const MemoryRegionOps allwinner_rtc_ops = {
 +    .read = allwinner_rtc_read,
 +    .write = allwinner_rtc_write,
 +    .endianness = DEVICE_NATIVE_ENDIAN,
 +    .valid = {
 +        .min_access_size = 4,
 +        .max_access_size = 4,
 +    },
 +    .impl.min_access_size = 4,
 +};
 +
 +static void allwinner_rtc_reset(DeviceState *dev)
 +{
 +    AwRtcState *s = AW_RTC(dev);
 +    struct tm now;
 +
 +    /* Clear registers */
 +    memset(s->regs, 0, sizeof(s->regs));
 +
 +    /* Get current datetime */
 +    qemu_get_timedate(&now, 0);
 +
 +    /* Set RTC with current datetime */
 +    if (s->base_year > 1900) {
 +        s->regs[REG_YYMMDD] =  ((now.tm_year + 1900 - s->base_year) << 16) |
 +                               ((now.tm_mon + 1) << 8) |
 +                                 now.tm_mday;
 +        s->regs[REG_HHMMSS] = (((now.tm_wday + 6) % 7) << 29) |
 +                                  (now.tm_hour << 16) |
 +                                  (now.tm_min << 8) |
 +                                   now.tm_sec;
 +    }
 +}
 +
 +static void allwinner_rtc_init(Object *obj)
 +{
 +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 +    AwRtcState *s = AW_RTC(obj);
 +
 +    /* Memory mapping */
 +    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_rtc_ops, s,
 +                          TYPE_AW_RTC, 1 * KiB);
 +    sysbus_init_mmio(sbd, &s->iomem);
 +}
 +
 +static const VMStateDescription allwinner_rtc_vmstate = {
 +    .name = "allwinner-rtc",
 +    .version_id = 1,
 +    .minimum_version_id = 1,
 +    .fields = (VMStateField[]) {
 +        VMSTATE_UINT32_ARRAY(regs, AwRtcState, AW_RTC_REGS_NUM),
 +        VMSTATE_END_OF_LIST()
 +    }
 +};
 +
 +static Property allwinner_rtc_properties[] = {
 +    DEFINE_PROP_INT32("base-year", AwRtcState, base_year, 0),
 +    DEFINE_PROP_END_OF_LIST(),
 +};
 +
 +static void allwinner_rtc_class_init(ObjectClass *klass, void *data)
 +{
 +    DeviceClass *dc = DEVICE_CLASS(klass);
 +
 +    dc->reset = allwinner_rtc_reset;
 +    dc->vmsd = &allwinner_rtc_vmstate;
 +    device_class_set_props(dc, allwinner_rtc_properties);
 +}
 +
 +static void allwinner_rtc_sun4i_init(Object *obj)
 +{
 +    AwRtcState *s = AW_RTC(obj);
 +    s->base_year = 2010;
 +}
 +
 +static void allwinner_rtc_sun4i_class_init(ObjectClass *klass, void *data)
 +{
 +    AwRtcClass *arc = AW_RTC_CLASS(klass);
 +
 +    arc->regmap = allwinner_rtc_sun4i_regmap;
 +    arc->regmap_size = sizeof(allwinner_rtc_sun4i_regmap);
 +    arc->read = allwinner_rtc_sun4i_read;
 +    arc->write = allwinner_rtc_sun4i_write;
 +}
 +
 +static void allwinner_rtc_sun6i_init(Object *obj)
 +{
 +    AwRtcState *s = AW_RTC(obj);
 +    s->base_year = 1970;
 +}
 +
 +static void allwinner_rtc_sun6i_class_init(ObjectClass *klass, void *data)
 +{
 +    AwRtcClass *arc = AW_RTC_CLASS(klass);
 +
 +    arc->regmap = allwinner_rtc_sun6i_regmap;
 +    arc->regmap_size = sizeof(allwinner_rtc_sun6i_regmap);
 +    arc->read = allwinner_rtc_sun6i_read;
 +    arc->write = allwinner_rtc_sun6i_write;
 +}
 +
 +static void allwinner_rtc_sun7i_init(Object *obj)
 +{
 +    AwRtcState *s = AW_RTC(obj);
 +    s->base_year = 1970;
 +}
 +
 +static void allwinner_rtc_sun7i_class_init(ObjectClass *klass, void *data)
 +{
 +    AwRtcClass *arc = AW_RTC_CLASS(klass);
 +    allwinner_rtc_sun4i_class_init(klass, arc);
 +}
 +
 +static const TypeInfo allwinner_rtc_info = {
 +    .name          = TYPE_AW_RTC,
 +    .parent        = TYPE_SYS_BUS_DEVICE,
 +    .instance_init = allwinner_rtc_init,
 +    .instance_size = sizeof(AwRtcState),
 +    .class_init    = allwinner_rtc_class_init,
 +    .class_size    = sizeof(AwRtcClass),
 +    .abstract      = true,
 +};
 +
 +static const TypeInfo allwinner_rtc_sun4i_info = {
 +    .name          = TYPE_AW_RTC_SUN4I,
 +    .parent        = TYPE_AW_RTC,
 +    .class_init    = allwinner_rtc_sun4i_class_init,
 +    .instance_init = allwinner_rtc_sun4i_init,
 +};
 +
 +static const TypeInfo allwinner_rtc_sun6i_info = {
 +    .name          = TYPE_AW_RTC_SUN6I,
 +    .parent        = TYPE_AW_RTC,
 +    .class_init    = allwinner_rtc_sun6i_class_init,
 +    .instance_init = allwinner_rtc_sun6i_init,
 +};
 +
 +static const TypeInfo allwinner_rtc_sun7i_info = {
 +    .name          = TYPE_AW_RTC_SUN7I,
 +    .parent        = TYPE_AW_RTC,
 +    .class_init    = allwinner_rtc_sun7i_class_init,
 +    .instance_init = allwinner_rtc_sun7i_init,
 +};
 +
 +static void allwinner_rtc_register(void)
 +{
 +    type_register_static(&allwinner_rtc_info);
 +    type_register_static(&allwinner_rtc_sun4i_info);
 +    type_register_static(&allwinner_rtc_sun6i_info);
 +    type_register_static(&allwinner_rtc_sun7i_info);
 +}
 +
 +type_init(allwinner_rtc_register)
 diff --git a/hw/rtc/trace-events b/hw/rtc/trace-events
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/rtc/trace-events
 +++ b/hw/rtc/trace-events
@@ -XXX,XX +XXX,XX @@
  # See docs/devel/tracing.txt for syntax documentation.
 +# allwinner-rtc.c
 +allwinner_rtc_read(uint64_t addr, uint64_t value) "addr 0x%" PRIx64 " value 0x%" PRIx64
 +allwinner_rtc_write(uint64_t addr, uint64_t value) "addr 0x%" PRIx64 " value 0x%" PRIx64
 +
  # sun4v-rtc.c
  sun4v_rtc_read(uint64_t addr, uint64_t value) "read: addr 0x%" PRIx64 " value 0x%" PRIx64
  sun4v_rtc_write(uint64_t addr, uint64_t value) "write: addr 0x%" PRIx64 " value 0x%" PRIx64
 --
-.17.0
+.20.1

-New patch
+[PULL 24/36] tests/boot_linux_console: Add a quick test for the OrangePi PC board
+From: Philippe Mathieu-Daudé <f4bug@amsat.org>
+This test boots a Linux kernel on a OrangePi PC board and verify
+the serial output is working.
+The kernel image and DeviceTree blob are built by the Armbian
+project (based on Debian):
+https://www.armbian.com/orange-pi-pc/
+If ARM is a target being built, "make check-acceptance" will
+automatically include this test by the use of the "arch:arm" tags.
+Alternatively, this test can be run using:
+  $ make check-venv
+  $ ./tests/venv/bin/avocado --show=console,app run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
+  JOB ID     : 2e4d15eceb13c33672af406f08171e6e9de1414a
+  JOB LOG    : ~/job-results/job-2019-12-17T05.46-2e4d15e/job.log
+  (1/1) tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_orangepi:
+  console: Uncompressing Linux... done, booting the kernel.
+  console: Booting Linux on physical CPU 0x0
+  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
+  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
+  console: CPU: div instructions available: patching division code
+  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
+  console: OF: fdt: Machine model: Xunlong Orange Pi PC
+  console: Memory policy: Data cache writealloc
+  console: OF: reserved mem: failed to allocate memory for node 'cma@4a000000'
+  console: cma: Failed to reserve 128 MiB
+  console: psci: probing for conduit method from DT.
+  console: psci: PSCIv0.2 detected in firmware.
+  console: psci: Using standard PSCI v0.2 function IDs
+  console: psci: Trusted OS migration not required
+  console: random: get_random_bytes called from start_kernel+0x8d/0x3c2 with crng_init=0
+  console: percpu: Embedded 18 pages/cpu @(ptrval) s41228 r8192 d24308 u73728
+  console: Built 1 zonelists, mobility grouping on.  Total pages: 32480
+  console: Kernel command line: printk.time=0 console=ttyS0,115200
+  PASS (8.59 s)
+  JOB TIME   : 8.81 s
+Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-14-nieklinnenbank@gmail.com
+[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ tests/acceptance/boot_linux_console.py | 25 +++++++++++++++++++++++++
+file changed, 25 insertions(+)
+diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
+index XXXXXXX..XXXXXXX 100644
+--- a/tests/acceptance/boot_linux_console.py
++++ b/tests/acceptance/boot_linux_console.py
+@@ -XXX,XX +XXX,XX @@ class BootLinuxConsole(Test):
+         exec_command_and_wait_for_pattern(self, 'reboot',
+                                                 'reboot: Restarting system')
++    def test_arm_orangepi(self):
++        """
++        :avocado: tags=arch:arm
++        :avocado: tags=machine:orangepi-pc
++        """
++        deb_url = ('https://apt.armbian.com/pool/main/l/'
++                   'linux-4.20.7-sunxi/linux-image-dev-sunxi_5.75_armhf.deb')
++        deb_hash = '1334c29c44d984ffa05ed10de8c3361f33d78315'
++        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
++        kernel_path = self.extract_from_deb(deb_path,
++                                            '/boot/vmlinuz-4.20.7-sunxi')
++        dtb_path = '/usr/lib/linux-image-dev-sunxi/sun8i-h3-orangepi-pc.dtb'
++        dtb_path = self.extract_from_deb(deb_path, dtb_path)
++
++        self.vm.set_console()
++        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
++                               'console=ttyS0,115200n8 '
++                               'earlycon=uart,mmio32,0x1c28000')
++        self.vm.add_args('-kernel', kernel_path,
++                         '-dtb', dtb_path,
++                         '-append', kernel_command_line)
++        self.vm.launch()
++        console_pattern = 'Kernel command line: %s' % kernel_command_line
++        self.wait_for_console_pattern(console_pattern)
++
+     def test_s390x_s390_ccw_virtio(self):
+         """
+         :avocado: tags=arch:s390x
+--
+.20.1

-New patch
+[PULL 25/36] tests/boot_linux_console: Add initrd test for the Orange Pi PC board
+From: Philippe Mathieu-Daudé <f4bug@amsat.org>
+This test boots a Linux kernel on a OrangePi PC board and verify
+the serial output is working.
+The kernel image and DeviceTree blob are built by the Armbian
+project (based on Debian):
+https://www.armbian.com/orange-pi-pc/
+The cpio image used comes from the linux-build-test project:
+https://github.com/groeck/linux-build-test
+If ARM is a target being built, "make check-acceptance" will
+automatically include this test by the use of the "arch:arm" tags.
+Alternatively, this test can be run using:
+  $ avocado --show=console run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
+  console: Uncompressing Linux... done, booting the kernel.
+  console: Booting Linux on physical CPU 0x0
+  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
+  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
+  console: CPU: div instructions available: patching division code
+  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
+  console: OF: fdt: Machine model: Xunlong Orange Pi PC
+  [...]
+  console: Trying to unpack rootfs image as initramfs...
+  console: Freeing initrd memory: 3256K
+  console: Freeing unused kernel memory: 1024K
+  console: Run /init as init process
+  console: mount: mounting devtmpfs on /dev failed: Device or resource busy
+  console: Starting logging: OK
+  console: Initializing random number generator... random: dd: uninitialized urandom read (512 bytes read)
+  console: done.
+  console: Starting network: OK
+  console: Found console ttyS0
+  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
+  console: Boot successful.
+  console: cat /proc/cpuinfo
+  console: / # cat /proc/cpuinfo
+  console: processor      : 0
+  console: model name     : ARMv7 Processor rev 5 (v7l)
+  console: BogoMIPS       : 125.00
+  console: Features       : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
+  console: CPU implementer        : 0x41
+  console: CPU architecture: 7
+  console: CPU variant    : 0x0
+  console: CPU part       : 0xc07
+  console: CPU revision   : 5
+  [...]
+  console: processor      : 3
+  console: model name     : ARMv7 Processor rev 5 (v7l)
+  console: BogoMIPS       : 125.00
+  console: Features       : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
+  console: CPU implementer        : 0x41
+  console: CPU architecture: 7
+  console: CPU variant    : 0x0
+  console: CPU part       : 0xc07
+  console: CPU revision   : 5
+  console: Hardware       : Allwinner sun8i Family
+  console: Revision       : 0000
+  console: Serial         : 0000000000000000
+  console: cat /proc/iomem
+  console: / # cat /proc/iomem
+  console: 01000000-010fffff : clock@1000000
+  console: 01c00000-01c00fff : system-control@1c00000
+  console: 01c02000-01c02fff : dma-controller@1c02000
+  [...]
+  console: reboot
+  console: / # reboot
+  console: / # Found console ttyS0
+  console: Stopping network: OK
+  console: hrtimer: interrupt took 21852064 ns
+  console: Saving random seed... random: dd: uninitialized urandom read (512 bytes read)
+  console: done.
+  console: Stopping logging: OK
+  console: umount: devtmpfs busy - remounted read-only
+  console: umount: can't unmount /: Invalid argument
+  console: The system is going down NOW!
+  console: Sent SIGTERM to all processes
+  console: Sent SIGKILL to all processes
+  console: Requesting system reboot
+  console: reboot: Restarting system
+  PASS (48.32 s)
+  JOB TIME   : 49.16 s
+Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-15-nieklinnenbank@gmail.com
+[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ tests/acceptance/boot_linux_console.py | 40 ++++++++++++++++++++++++++
+file changed, 40 insertions(+)
+diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
+index XXXXXXX..XXXXXXX 100644
+--- a/tests/acceptance/boot_linux_console.py
++++ b/tests/acceptance/boot_linux_console.py
+@@ -XXX,XX +XXX,XX @@ class BootLinuxConsole(Test):
+         console_pattern = 'Kernel command line: %s' % kernel_command_line
+         self.wait_for_console_pattern(console_pattern)
++    def test_arm_orangepi_initrd(self):
++        """
++        :avocado: tags=arch:arm
++        :avocado: tags=machine:orangepi-pc
++        """
++        deb_url = ('https://apt.armbian.com/pool/main/l/'
++                   'linux-4.20.7-sunxi/linux-image-dev-sunxi_5.75_armhf.deb')
++        deb_hash = '1334c29c44d984ffa05ed10de8c3361f33d78315'
++        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
++        kernel_path = self.extract_from_deb(deb_path,
++                                            '/boot/vmlinuz-4.20.7-sunxi')
++        dtb_path = '/usr/lib/linux-image-dev-sunxi/sun8i-h3-orangepi-pc.dtb'
++        dtb_path = self.extract_from_deb(deb_path, dtb_path)
++        initrd_url = ('https://github.com/groeck/linux-build-test/raw/'
++                      '2eb0a73b5d5a28df3170c546ddaaa9757e1e0848/rootfs/'
++                      'arm/rootfs-armv7a.cpio.gz')
++        initrd_hash = '604b2e45cdf35045846b8bbfbf2129b1891bdc9c'
++        initrd_path_gz = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
++        initrd_path = os.path.join(self.workdir, 'rootfs.cpio')
++        archive.gzip_uncompress(initrd_path_gz, initrd_path)
++
++        self.vm.set_console()
++        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
++                               'console=ttyS0,115200 '
++                               'panic=-1 noreboot')
++        self.vm.add_args('-kernel', kernel_path,
++                         '-dtb', dtb_path,
++                         '-initrd', initrd_path,
++                         '-append', kernel_command_line,
++                         '-no-reboot')
++        self.vm.launch()
++        self.wait_for_console_pattern('Boot successful.')
++
++        exec_command_and_wait_for_pattern(self, 'cat /proc/cpuinfo',
++                                                'Allwinner sun8i Family')
++        exec_command_and_wait_for_pattern(self, 'cat /proc/iomem',
++                                                'system-control@1c00000')
++        exec_command_and_wait_for_pattern(self, 'reboot',
++                                                'reboot: Restarting system')
++
+     def test_s390x_s390_ccw_virtio(self):
+         """
+         :avocado: tags=arch:s390x
+--
+.20.1

-New patch
+[PULL 26/36] tests/boot_linux_console: Add a SD card test for the OrangePi PC board
+From: Philippe Mathieu-Daudé <f4bug@amsat.org>
+The kernel image and DeviceTree blob are built by the Armbian
+project (based on Debian):
+https://www.armbian.com/orange-pi-pc/
+The SD image is from the kernelci.org project:
+https://kernelci.org/faq/#the-code
+If ARM is a target being built, "make check-acceptance" will
+automatically include this test by the use of the "arch:arm" tags.
+Alternatively, this test can be run using:
+  $ avocado --show=console run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
+  console: Uncompressing Linux... done, booting the kernel.
+  console: Booting Linux on physical CPU 0x0
+  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
+  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
+  [...]
+  console: sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
+  console: sunxi-mmc 1c0f000.mmc: Linked as a consumer to regulator.2
+  console: sunxi-mmc 1c0f000.mmc: Got CD GPIO
+  console: ledtrig-cpu: registered to indicate activity on CPUs
+  console: hidraw: raw HID events driver (C) Jiri Kosina
+  console: usbcore: registered new interface driver usbhid
+  console: usbhid: USB HID core driver
+  console: Initializing XFRM netlink socket
+  console: sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
+  console: NET: Registered protocol family 10
+  console: mmc0: host does not support reading read-only switch, assuming write-enable
+  console: mmc0: Problem switching card into high-speed mode!
+  console: mmc0: new SD card at address 4567
+  console: mmcblk0: mmc0:4567 QEMU! 60.0 MiB
+  [...]
+  console: EXT4-fs (mmcblk0): mounting ext2 file system using the ext4 subsystem
+  console: EXT4-fs (mmcblk0): mounted filesystem without journal. Opts: (null)
+  console: VFS: Mounted root (ext2 filesystem) on device 179:0.
+  console: Run /sbin/init as init process
+  console: EXT4-fs (mmcblk0): re-mounted. Opts: block_validity,barrier,user_xattr,acl
+  console: Starting syslogd: OK
+  console: Starting klogd: OK
+  console: Populating /dev using udev: udevd[203]: starting version 3.2.7
+  console: /bin/sh: can't access tty; job control turned off
+  console: cat /proc/partitions
+  console: / # cat /proc/partitions
+  console: major minor  #blocks  name
+  console: 1        0       4096 ram0
+  console: 1        1       4096 ram1
+  console: 1        2       4096 ram2
+  console: 1        3       4096 ram3
+  console: 179        0      61440 mmcblk0
+  console: reboot
+  console: / # reboot
+  console: umount: devtmpfs busy - remounted read-only
+  console: EXT4-fs (mmcblk0): re-mounted. Opts: (null)
+  console: The system is going down NOW!
+  console: Sent SIGTERM to all processes
+  console: Sent SIGKILL to all processes
+  console: Requesting system reboot
+  console: reboot: Restarting system
+  JOB TIME   : 68.64 s
+Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-16-nieklinnenbank@gmail.com
+[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
+[NL: extend test with ethernet device checks]
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ tests/acceptance/boot_linux_console.py | 47 ++++++++++++++++++++++++++
+file changed, 47 insertions(+)
+diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
+index XXXXXXX..XXXXXXX 100644
+--- a/tests/acceptance/boot_linux_console.py
++++ b/tests/acceptance/boot_linux_console.py
+@@ -XXX,XX +XXX,XX @@ class BootLinuxConsole(Test):
+         exec_command_and_wait_for_pattern(self, 'reboot',
+                                                 'reboot: Restarting system')
++    def test_arm_orangepi_sd(self):
++        """
++        :avocado: tags=arch:arm
++        :avocado: tags=machine:orangepi-pc
++        """
++        deb_url = ('https://apt.armbian.com/pool/main/l/'
++                   'linux-4.20.7-sunxi/linux-image-dev-sunxi_5.75_armhf.deb')
++        deb_hash = '1334c29c44d984ffa05ed10de8c3361f33d78315'
++        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
++        kernel_path = self.extract_from_deb(deb_path,
++                                            '/boot/vmlinuz-4.20.7-sunxi')
++        dtb_path = '/usr/lib/linux-image-dev-sunxi/sun8i-h3-orangepi-pc.dtb'
++        dtb_path = self.extract_from_deb(deb_path, dtb_path)
++        rootfs_url = ('http://storage.kernelci.org/images/rootfs/buildroot/'
++                      'kci-2019.02/armel/base/rootfs.ext2.xz')
++        rootfs_hash = '692510cb625efda31640d1de0a8d60e26040f061'
++        rootfs_path_xz = self.fetch_asset(rootfs_url, asset_hash=rootfs_hash)
++        rootfs_path = os.path.join(self.workdir, 'rootfs.cpio')
++        archive.lzma_uncompress(rootfs_path_xz, rootfs_path)
++
++        self.vm.set_console()
++        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
++                               'console=ttyS0,115200 '
++                               'root=/dev/mmcblk0 rootwait rw '
++                               'panic=-1 noreboot')
++        self.vm.add_args('-kernel', kernel_path,
++                         '-dtb', dtb_path,
++                         '-drive', 'file=' + rootfs_path + ',if=sd,format=raw',
++                         '-append', kernel_command_line,
++                         '-no-reboot')
++        self.vm.launch()
++        shell_ready = "/bin/sh: can't access tty; job control turned off"
++        self.wait_for_console_pattern(shell_ready)
++
++        exec_command_and_wait_for_pattern(self, 'cat /proc/cpuinfo',
++                                                'Allwinner sun8i Family')
++        exec_command_and_wait_for_pattern(self, 'cat /proc/partitions',
++                                                'mmcblk0')
++        exec_command_and_wait_for_pattern(self, 'ifconfig eth0 up',
++                                                 'eth0: Link is Up')
++        exec_command_and_wait_for_pattern(self, 'udhcpc eth0',
++            'udhcpc: lease of 10.0.2.15 obtained')
++        exec_command_and_wait_for_pattern(self, 'ping -c 3 10.0.2.2',
++            '3 packets transmitted, 3 packets received, 0% packet loss')
++        exec_command_and_wait_for_pattern(self, 'reboot',
++                                                'reboot: Restarting system')
++
+     def test_s390x_s390_ccw_virtio(self):
+         """
+         :avocado: tags=arch:s390x
+--
+.20.1

-New patch
+[PULL 27/36] tests/boot_linux_console: Add a SLOW test booting Ubuntu on OrangePi PC
+From: Philippe Mathieu-Daudé <f4bug@amsat.org>
+This test boots Ubuntu Bionic on a OrangePi PC board.
+As it requires 1GB of storage, and is slow, this test is disabled
+on automatic CI testing.
+It is useful for workstation testing. Currently Avocado timeouts too
+quickly, so we can't run userland commands.
+The kernel image and DeviceTree blob are built by the Armbian
+project (based on Debian):
+https://www.armbian.com/orange-pi-pc/
+The Ubuntu image is downloaded from:
+https://dl.armbian.com/orangepipc/Bionic_current
+This test can be run using:
+  $ AVOCADO_ALLOW_LARGE_STORAGE=yes \
+    avocado --show=app,console run -t machine:orangepi-pc \
+      tests/acceptance/boot_linux_console.py
+  console: U-Boot SPL 2019.04-armbian (Nov 18 2019 - 23:08:35 +0100)
+  console: DRAM: 1024 MiB
+  console: Failed to set core voltage! Can't set CPU frequency
+  console: Trying to boot from MMC1
+  console: U-Boot 2019.04-armbian (Nov 18 2019 - 23:08:35 +0100) Allwinner Technology
+  console: CPU:   Allwinner H3 (SUN8I 0000)
+  console: Model: Xunlong Orange Pi PC
+  console: DRAM:  1 GiB
+  console: MMC:   mmc@1c0f000: 0
+  [...]
+  console: Uncompressing Linux... done, booting the kernel.
+  console: Booting Linux on physical CPU 0x0
+  console: Linux version 5.3.9-sunxi (root@builder) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #19.11.3 SMP Mon Nov 18 18:49:43 CET 2019
+  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
+  console: CPU: div instructions available: patching division code
+  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
+  console: OF: fdt: Machine model: Xunlong Orange Pi PC
+  [...]
+  console: EXT4-fs (mmcblk0p1): mounted filesystem with writeback data mode. Opts: (null)
+  console: done.
+  console: Begin: Running /scripts/local-bottom ... done.
+  console: Begin: Running /scripts/init-bottom ... done.
+  console: systemd[1]: systemd 237 running in system mode. (...)
+  console: systemd[1]: Detected architecture arm.
+  console: Welcome to Ubuntu 18.04.3 LTS!
+  console: systemd[1]: Set hostname to <orangepipc>.
+Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311221854.30370-17-nieklinnenbank@gmail.com
+[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
+[NL: changed test to boot from SD card via BootROM, added check for 7z]
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ tests/acceptance/boot_linux_console.py | 48 ++++++++++++++++++++++++++
+file changed, 48 insertions(+)
+diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
+index XXXXXXX..XXXXXXX 100644
+--- a/tests/acceptance/boot_linux_console.py
++++ b/tests/acceptance/boot_linux_console.py
+@@ -XXX,XX +XXX,XX @@ from avocado_qemu import exec_command_and_wait_for_pattern
+ from avocado_qemu import wait_for_console_pattern
+ from avocado.utils import process
+ from avocado.utils import archive
++from avocado.utils.path import find_command, CmdNotFoundError
++P7ZIP_AVAILABLE = True
++try:
++    find_command('7z')
++except CmdNotFoundError:
++    P7ZIP_AVAILABLE = False
+ class BootLinuxConsole(Test):
+     """
+@@ -XXX,XX +XXX,XX @@ class BootLinuxConsole(Test):
+         exec_command_and_wait_for_pattern(self, 'reboot',
+                                                 'reboot: Restarting system')
++    @skipUnless(os.getenv('AVOCADO_ALLOW_LARGE_STORAGE'), 'storage limited')
++    @skipUnless(P7ZIP_AVAILABLE, '7z not installed')
++    def test_arm_orangepi_bionic(self):
++        """
++        :avocado: tags=arch:arm
++        :avocado: tags=machine:orangepi-pc
++        """
++
++        # This test download a 196MB compressed image and expand it to 932MB...
++        image_url = ('https://dl.armbian.com/orangepipc/archive/'
++                     'Armbian_19.11.3_Orangepipc_bionic_current_5.3.9.7z')
++        image_hash = '196a8ffb72b0123d92cea4a070894813d305c71e'
++        image_path_7z = self.fetch_asset(image_url, asset_hash=image_hash)
++        image_name = 'Armbian_19.11.3_Orangepipc_bionic_current_5.3.9.img'
++        image_path = os.path.join(self.workdir, image_name)
++        process.run("7z e -o%s %s" % (self.workdir, image_path_7z))
++
++        self.vm.set_console()
++        self.vm.add_args('-drive', 'file=' + image_path + ',if=sd,format=raw',
++                         '-nic', 'user',
++                         '-no-reboot')
++        self.vm.launch()
++
++        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
++                               'console=ttyS0,115200 '
++                               'loglevel=7 '
++                               'nosmp '
++                               'systemd.default_timeout_start_sec=9000 '
++                               'systemd.mask=armbian-zram-config.service '
++                               'systemd.mask=armbian-ramlog.service')
++
++        self.wait_for_console_pattern('U-Boot SPL')
++        self.wait_for_console_pattern('Autoboot in ')
++        exec_command_and_wait_for_pattern(self, ' ', '=>')
++        exec_command_and_wait_for_pattern(self, "setenv extraargs '" +
++                                                kernel_command_line + "'", '=>')
++        exec_command_and_wait_for_pattern(self, 'boot', 'Starting kernel ...');
++
++        self.wait_for_console_pattern('systemd[1]: Set hostname ' +
++                                      'to <orangepipc>')
++        self.wait_for_console_pattern('Starting Load Kernel Modules...')
++
+     def test_s390x_s390_ccw_virtio(self):
+         """
+         :avocado: tags=arch:s390x
+--
+.20.1

-[Qemu-devel] [PULL 15/16] sdcard: Correct CRC16 offset in sd_function_switch()
+[PULL 28/36] tests/boot_linux_console: Test booting NetBSD via U-Boot on OrangePi PC
 From: Philippe Mathieu-Daudé <f4bug@amsat.org>
-Per the Physical Layer Simplified Spec. "4.3.10.4 Switch Function Status":
+This test boots U-Boot then NetBSD (stored on a SD card) on
 a OrangePi PC board.
-  The block length is predefined to 512 bits
+As it requires ~1.3GB of storage, it is disabled by default.
-and "4.10.2 SD Status":
+U-Boot is built by the Debian project [1], and the SD card image
 is provided by the NetBSD organization [2].
-  The SD Status contains status bits that are related to the SD Memory Card
+Once the compressed SD card image is downloaded (304MB) and
-  proprietary features and may be used for future application-specific usage.
+extracted, this test is fast:
   The size of the SD Status is one data block of 512 bit. The content of this
   register is transmitted to the Host over the DAT bus along with a 16-bit CRC.
-Thus the 16-bit CRC goes at offset 64.
+  $ AVOCADO_ALLOW_LARGE_STORAGE=yes \
     avocado --show=app,console run -t machine:orangepi-pc \
       tests/acceptance/boot_linux_console.py
   console: U-Boot SPL 2020.01+dfsg-1 (Jan 08 2020 - 08:19:44 +0000)
   console: DRAM: 1024 MiB
   console: U-Boot 2020.01+dfsg-1 (Jan 08 2020 - 08:19:44 +0000) Allwinner Technology
   console: CPU:   Allwinner H3 (SUN8I 0000)
   console: scanning bus usb@1c1b000 for devices... 1 USB Device(s) found
   console: scanning bus usb@1c1d000 for devices... 1 USB Device(s) found
   console: scanning usb for storage devices... 0 Storage Device(s) found
   console: Hit any key to stop autoboot:  0
   console: => setenv bootargs root=ld0a
   console: => setenv kernel netbsd-GENERIC.ub
   console: => setenv fdtfile dtb/sun8i-h3-orangepi-pc.dtb
   console: => boot
   console: ## Booting kernel from Legacy Image at 42000000 ...
   console: Image Name:   NetBSD/earmv7hf 9.0_RC1
   console: Image Type:   ARM Linux Kernel Image (no loading done) (uncompressed)
   console: XIP Kernel Image (no loading done)
   console: Loading Device Tree to 49ff6000, end 49fffe01 ... OK
   console: Starting kernel ...
   console: [   1.0000000] NetBSD/evbarm (fdt) booting ...
   console: [   1.0000000] NetBSD 9.0 (GENERIC) #0: Fri Feb 14 00:06:28 UTC 2020
   console: [   1.0000000]         mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/evbarm/compile/GENERIC
   console: [   1.0000000] total memory = 1024 MB
   console: [   1.0000000] avail memory = 1003 MB
   console: [   1.0000000] armfdt0 (root)
   console: [   1.0000000] simplebus0 at armfdt0: Xunlong Orange Pi PC
   console: [   1.0000000] cpu0 at cpus0: Cortex-A7 r0p5 (Cortex V7A core)
   console: [   1.0000000] cpu0: DC enabled IC enabled WB enabled LABT branch prediction enabled
   console: [   1.0000000] cpu0: 32KB/64B 2-way L1 VIPT Instruction cache
   console: [   1.0000000] cpu0: 32KB/64B 2-way write-back-locking-C L1 PIPT Data cache
   console: [   1.0000000] cpu0: 2304KB/64B 16-way write-through L2 PIPT Unified cache
   console: [   1.0000000] vfp0 at cpu0: NEON MPE (VFP 3.0+), rounding, NaN propagation, denormals
   ...
   console: [   2.3812082] sdmmc0: SD card status: 4-bit, C0
   console: [   2.3812082] ld0 at sdmmc0: <0xaa:0x5859:QEMU!:0x01:0xdeadbeef:0x062>
   console: [   2.4012856] ld0: 1226 MB, 622 cyl, 64 head, 63 sec, 512 bytes/sect x 2511872 sectors
   console: [   2.5321222] ld0: 4-bit width, High-Speed/SDR25, 50.000 MHz
   console: [   3.1068718] WARNING: 4 errors while detecting hardware; check system log.
   console: [   3.1179868] boot device: ld0
   console: [   3.1470623] root on ld0a dumps on ld0b
   console: [   3.2464436] root file system type: ffs
   console: [   3.2897123] kern.module.path=/stand/evbarm/9.0/modules
   console: Mon Feb 17 20:33:35 UTC 2020
   console: Starting root file system check:
   PASS (35.96 s)
   RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
   JOB TIME   : 36.09 s
 Note, this test only took ~65 seconds to run on Travis-CI, see: [3].
 This test is based on a description from Niek Linnenbank from [4].
 [1] https://wiki.debian.org/InstallingDebianOn/Allwinner#Creating_a_bootable_SD_Card_with_u-boot
 [2] https://wiki.netbsd.org/ports/evbarm/allwinner/
 [3] https://travis-ci.org/philmd/qemu/jobs/638823612#L3778
 [4] https://www.mail-archive.com/qemu-devel@nongnu.org/msg669347.html
 Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
-Message-id: 20180509060104.4458-3-f4bug@amsat.org
+Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
-Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
 Tested-by: Alex Bennée <alex.bennee@linaro.org>
 Message-id: 20200311221854.30370-18-nieklinnenbank@gmail.com
 [NL: changed test to use NetBSD 9.0 final release and -global allwinner-rtc.base-year]
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- hw/sd/sd.c | 2 +-
+ tests/acceptance/boot_linux_console.py | 70 ++++++++++++++++++++++++++
-file changed, 1 insertion(+), 1 deletion(-)
+file changed, 70 insertions(+)
-diff --git a/hw/sd/sd.c b/hw/sd/sd.c
+diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
 index XXXXXXX..XXXXXXX 100644
---- a/hw/sd/sd.c
+--- a/tests/acceptance/boot_linux_console.py
-+++ b/hw/sd/sd.c
++++ b/tests/acceptance/boot_linux_console.py
-@@ -XXX,XX +XXX,XX @@ static void sd_function_switch(SDState *sd, uint32_t arg)
+@@ -XXX,XX +XXX,XX @@ import shutil
-         sd->data[14 + (i >> 1)] = new_func << ((i * 4) & 4);
+ from avocado import skipUnless
-     }
+ from avocado_qemu import Test
-     memset(&sd->data[17], 0, 47);
+ from avocado_qemu import exec_command_and_wait_for_pattern
--    stw_be_p(sd->data + 65, sd_crc16(sd->data, 64));
++from avocado_qemu import interrupt_interactive_console_until_pattern
-+    stw_be_p(sd->data + 64, sd_crc16(sd->data, 64));
+ from avocado_qemu import wait_for_console_pattern
- }
+ from avocado.utils import process
+ from avocado.utils import archive
- static inline bool sd_wp_addr(SDState *sd, uint64_t addr)
+@@ -XXX,XX +XXX,XX @@ class BootLinuxConsole(Test):
                                        'to <orangepipc>')
          self.wait_for_console_pattern('Starting Load Kernel Modules...')
 +    @skipUnless(os.getenv('AVOCADO_ALLOW_LARGE_STORAGE'), 'storage limited')
 +    def test_arm_orangepi_uboot_netbsd9(self):
 +        """
 +        :avocado: tags=arch:arm
 +        :avocado: tags=machine:orangepi-pc
 +        """
 +        # This test download a 304MB compressed image and expand it to 1.3GB...
 +        deb_url = ('http://snapshot.debian.org/archive/debian/'
 +                   '20200108T145233Z/pool/main/u/u-boot/'
 +                   'u-boot-sunxi_2020.01%2Bdfsg-1_armhf.deb')
 +        deb_hash = 'f67f404a80753ca3d1258f13e38f2b060e13db99'
 +        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
 +        # We use the common OrangePi PC 'plus' build of U-Boot for our secondary
 +        # program loader (SPL). We will then set the path to the more specific
 +        # OrangePi "PC" device tree blob with 'setenv fdtfile' in U-Boot prompt,
 +        # before to boot NetBSD.
 +        uboot_path = '/usr/lib/u-boot/orangepi_plus/u-boot-sunxi-with-spl.bin'
 +        uboot_path = self.extract_from_deb(deb_path, uboot_path)
 +        image_url = ('https://cdn.netbsd.org/pub/NetBSD/NetBSD-9.0/'
 +                     'evbarm-earmv7hf/binary/gzimg/armv7.img.gz')
 +        image_hash = '2babb29d36d8360adcb39c09e31060945259917a'
 +        image_path_gz = self.fetch_asset(image_url, asset_hash=image_hash)
 +        image_path = os.path.join(self.workdir, 'armv7.img')
 +        image_drive_args = 'if=sd,format=raw,snapshot=on,file=' + image_path
 +        archive.gzip_uncompress(image_path_gz, image_path)
 +
 +        # dd if=u-boot-sunxi-with-spl.bin of=armv7.img bs=1K seek=8 conv=notrunc
 +        with open(uboot_path, 'rb') as f_in:
 +            with open(image_path, 'r+b') as f_out:
 +                f_out.seek(8 * 1024)
 +                shutil.copyfileobj(f_in, f_out)
 +
 +                # Extend image, to avoid that NetBSD thinks the partition
 +                # inside the image is larger than device size itself
 +                f_out.seek(0, 2)
 +                f_out.seek(64 * 1024 * 1024, 1)
 +                f_out.write(bytearray([0x00]))
 +
 +        self.vm.set_console()
 +        self.vm.add_args('-nic', 'user',
 +                         '-drive', image_drive_args,
 +                         '-global', 'allwinner-rtc.base-year=2000',
 +                         '-no-reboot')
 +        self.vm.launch()
 +        wait_for_console_pattern(self, 'U-Boot 2020.01+dfsg-1')
 +        interrupt_interactive_console_until_pattern(self,
 +                                       'Hit any key to stop autoboot:',
 +                                       'switch to partitions #0, OK')
 +
 +        exec_command_and_wait_for_pattern(self, '', '=>')
 +        cmd = 'setenv bootargs root=ld0a'
 +        exec_command_and_wait_for_pattern(self, cmd, '=>')
 +        cmd = 'setenv kernel netbsd-GENERIC.ub'
 +        exec_command_and_wait_for_pattern(self, cmd, '=>')
 +        cmd = 'setenv fdtfile dtb/sun8i-h3-orangepi-pc.dtb'
 +        exec_command_and_wait_for_pattern(self, cmd, '=>')
 +        cmd = ("setenv bootcmd 'fatload mmc 0:1 ${kernel_addr_r} ${kernel}; "
 +               "fatload mmc 0:1 ${fdt_addr_r} ${fdtfile}; "
 +               "fdt addr ${fdt_addr_r}; "
 +               "bootm ${kernel_addr_r} - ${fdt_addr_r}'")
 +        exec_command_and_wait_for_pattern(self, cmd, '=>')
 +
 +        exec_command_and_wait_for_pattern(self, 'boot',
 +                                          'Booting kernel from Legacy Image')
 +        wait_for_console_pattern(self, 'Starting kernel ...')
 +        wait_for_console_pattern(self, 'NetBSD 9.0 (GENERIC)')
 +        # Wait for user-space
 +        wait_for_console_pattern(self, 'Starting root file system check')
 +
      def test_s390x_s390_ccw_virtio(self):
          """
          :avocado: tags=arch:s390x
 --
-.17.0
+.20.1

-New patch
+[PULL 29/36] docs: add Orange Pi PC document
+From: Niek Linnenbank <nieklinnenbank@gmail.com>
 The Xunlong Orange Pi PC machine is a functional ARM machine
 based on the Allwinner H3 System-on-Chip. It supports mainline
 Linux, U-Boot, NetBSD and is covered by acceptance tests.
 This commit adds a documentation text file with a description
 of the machine and instructions for the user.
 Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
 Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
 Message-id: 20200311221854.30370-19-nieklinnenbank@gmail.com
 [PMM: moved file into docs/system/arm to match the reorg
 of the arm target part of the docs; tweaked heading to
 match other boards]
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
  MAINTAINERS                  |   1 +
  docs/system/arm/orangepi.rst | 253 +++++++++++++++++++++++++++++++++++
  docs/system/target-arm.rst   |   2 +
 files changed, 256 insertions(+)
  create mode 100644 docs/system/arm/orangepi.rst
 diff --git a/MAINTAINERS b/MAINTAINERS
 index XXXXXXX..XXXXXXX 100644
 --- a/MAINTAINERS
 +++ b/MAINTAINERS
@@ -XXX,XX +XXX,XX @@ S: Maintained
  F: hw/*/allwinner-h3*
  F: include/hw/*/allwinner-h3*
  F: hw/arm/orangepi.c
 +F: docs/system/orangepi.rst
  ARM PrimeCell and CMSDK devices
  M: Peter Maydell <peter.maydell@linaro.org>
 diff --git a/docs/system/arm/orangepi.rst b/docs/system/arm/orangepi.rst
 new file mode 100644
 index XXXXXXX..XXXXXXX
 --- /dev/null
 +++ b/docs/system/arm/orangepi.rst
@@ -XXX,XX +XXX,XX @@
 +Orange Pi PC (``orangepi-pc``)
 +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 +
 +The Xunlong Orange Pi PC is an Allwinner H3 System on Chip
 +based embedded computer with mainline support in both U-Boot
 +and Linux. The board comes with a Quad Core Cortex-A7 @ 1.3GHz,
 +1GiB RAM, 100Mbit ethernet, USB, SD/MMC, USB, HDMI and
 +various other I/O.
 +
 +Supported devices
 +"""""""""""""""""
 +
 +The Orange Pi PC machine supports the following devices:
 +
 + * SMP (Quad Core Cortex-A7)
 + * Generic Interrupt Controller configuration
 + * SRAM mappings
 + * SDRAM controller
 + * Real Time Clock
 + * Timer device (re-used from Allwinner A10)
 + * UART
 + * SD/MMC storage controller
 + * EMAC ethernet
 + * USB 2.0 interfaces
 + * Clock Control Unit
 + * System Control module
 + * Security Identifier device
 +
 +Limitations
 +"""""""""""
 +
 +Currently, Orange Pi PC does *not* support the following features:
 +
 +- Graphical output via HDMI, GPU and/or the Display Engine
 +- Audio output
 +- Hardware Watchdog
 +
 +Also see the 'unimplemented' array in the Allwinner H3 SoC module
 +for a complete list of unimplemented I/O devices: ``./hw/arm/allwinner-h3.c``
 +
 +Boot options
 +""""""""""""
 +
 +The Orange Pi PC machine can start using the standard -kernel functionality
 +for loading a Linux kernel or ELF executable. Additionally, the Orange Pi PC
 +machine can also emulate the BootROM which is present on an actual Allwinner H3
 +based SoC, which loads the bootloader from a SD card, specified via the -sd argument
 +to qemu-system-arm.
 +
 +Machine-specific options
 +""""""""""""""""""""""""
 +
 +The following machine-specific options are supported:
 +
 +- allwinner-rtc.base-year=YYYY
 +
 +  The Allwinner RTC device is automatically created by the Orange Pi PC machine
 +  and uses a default base year value which can be overridden using the 'base-year' property.
 +  The base year is the actual represented year when the RTC year value is zero.
 +  This option can be used in case the target operating system driver uses a different
 +  base year value. The minimum value for the base year is 1900.
 +
 +- allwinner-sid.identifier=abcd1122-a000-b000-c000-12345678ffff
 +
 +  The Security Identifier value can be read by the guest.
 +  For example, U-Boot uses it to determine a unique MAC address.
 +
 +The above machine-specific options can be specified in qemu-system-arm
 +via the '-global' argument, for example:
 +
 +.. code-block:: bash
 +
 +  $ qemu-system-arm -M orangepi-pc -sd mycard.img \
 +       -global allwinner-rtc.base-year=2000
 +
 +Running mainline Linux
 +""""""""""""""""""""""
 +
 +Mainline Linux kernels from 4.19 up to latest master are known to work.
 +To build a Linux mainline kernel that can be booted by the Orange Pi PC machine,
 +simply configure the kernel using the sunxi_defconfig configuration:
 +
 +.. code-block:: bash
 +
 +  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make mrproper
 +  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make sunxi_defconfig
 +
 +To be able to use USB storage, you need to manually enable the corresponding
 +configuration item. Start the kconfig configuration tool:
 +
 +.. code-block:: bash
 +
 +  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make menuconfig
 +
 +Navigate to the following item, enable it and save your configuration:
 +
 +  Device Drivers > USB support > USB Mass Storage support
 +
 +Build the Linux kernel with:
 +
 +.. code-block:: bash
 +
 +  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make
 +
 +To boot the newly build linux kernel in QEMU with the Orange Pi PC machine, use:
 +
 +.. code-block:: bash
 +
 +  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
 +      -kernel /path/to/linux/arch/arm/boot/zImage \
 +      -append 'console=ttyS0,115200' \
 +      -dtb /path/to/linux/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb
 +
 +Orange Pi PC images
 +"""""""""""""""""""
 +
 +Note that the mainline kernel does not have a root filesystem. You may provide it
 +with an official Orange Pi PC image from the official website:
 +
 +  http://www.orangepi.org/downloadresources/
 +
 +Another possibility is to run an Armbian image for Orange Pi PC which
 +can be downloaded from:
 +
 +   https://www.armbian.com/orange-pi-pc/
 +
 +Alternatively, you can also choose to build you own image with buildroot
 +using the orangepi_pc_defconfig. Also see https://buildroot.org for more information.
 +
 +You can choose to attach the selected image either as an SD card or as USB mass storage.
 +For example, to boot using the Orange Pi PC Debian image on SD card, simply add the -sd
 +argument and provide the proper root= kernel parameter:
 +
 +.. code-block:: bash
 +
 +  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
 +      -kernel /path/to/linux/arch/arm/boot/zImage \
 +      -append 'console=ttyS0,115200 root=/dev/mmcblk0p2' \
 +      -dtb /path/to/linux/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb \
 +      -sd OrangePi_pc_debian_stretch_server_linux5.3.5_v1.0.img
 +
 +To attach the image as an USB mass storage device to the machine,
 +simply append to the command:
 +
 +.. code-block:: bash
 +
 +  -drive if=none,id=stick,file=myimage.img \
 +  -device usb-storage,bus=usb-bus.0,drive=stick
 +
 +Instead of providing a custom Linux kernel via the -kernel command you may also
 +choose to let the Orange Pi PC machine load the bootloader from SD card, just like
 +a real board would do using the BootROM. Simply pass the selected image via the -sd
 +argument and remove the -kernel, -append, -dbt and -initrd arguments:
 +
 +.. code-block:: bash
 +
 +  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
 +       -sd Armbian_19.11.3_Orangepipc_buster_current_5.3.9.img
 +
 +Note that both the official Orange Pi PC images and Armbian images start
 +a lot of userland programs via systemd. Depending on the host hardware and OS,
 +they may be slow to emulate, especially due to emulating the 4 cores.
 +To help reduce the performance slow down due to emulating the 4 cores, you can
 +give the following kernel parameters via U-Boot (or via -append):
 +
 +.. code-block:: bash
 +
 +  => setenv extraargs 'systemd.default_timeout_start_sec=9000 loglevel=7 nosmp console=ttyS0,115200'
 +
 +Running U-Boot
 +""""""""""""""
 +
 +U-Boot mainline can be build and configured using the orangepi_pc_defconfig
 +using similar commands as describe above for Linux. Note that it is recommended
 +for development/testing to select the following configuration setting in U-Boot:
 +
 +  Device Tree Control > Provider for DTB for DT Control > Embedded DTB
 +
 +To start U-Boot using the Orange Pi PC machine, provide the
 +u-boot binary to the -kernel argument:
 +
 +.. code-block:: bash
 +
 +  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
 +      -kernel /path/to/uboot/u-boot -sd disk.img
 +
 +Use the following U-boot commands to load and boot a Linux kernel from SD card:
 +
 +.. code-block:: bash
 +
 +  => setenv bootargs console=ttyS0,115200
 +  => ext2load mmc 0 0x42000000 zImage
 +  => ext2load mmc 0 0x43000000 sun8i-h3-orangepi-pc.dtb
 +  => bootz 0x42000000 - 0x43000000
 +
 +Running NetBSD
 +""""""""""""""
 +
 +The NetBSD operating system also includes support for Allwinner H3 based boards,
 +including the Orange Pi PC. NetBSD 9.0 is known to work best for the Orange Pi PC
 +board and provides a fully working system with serial console, networking and storage.
 +For the Orange Pi PC machine, get the 'evbarm-earmv7hf' based image from:
 +
 +  https://cdn.netbsd.org/pub/NetBSD/NetBSD-9.0/evbarm-earmv7hf/binary/gzimg/armv7.img.gz
 +
 +The image requires manually installing U-Boot in the image. Build U-Boot with
 +the orangepi_pc_defconfig configuration as described in the previous section.
 +Next, unzip the NetBSD image and write the U-Boot binary including SPL using:
 +
 +.. code-block:: bash
 +
 +  $ gunzip armv7.img.gz
 +  $ dd if=/path/to/u-boot-sunxi-with-spl.bin of=armv7.img bs=1024 seek=8 conv=notrunc
 +
 +Finally, before starting the machine the SD image must be extended such
 +that the NetBSD kernel will not conclude the NetBSD partition is larger than
 +the emulated SD card:
 +
 +.. code-block:: bash
 +
 +  $ dd if=/dev/zero bs=1M count=64 >> armv7.img
 +
 +Start the machine using the following command:
 +
 +.. code-block:: bash
 +
 +  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
 +        -sd armv7.img -global allwinner-rtc.base-year=2000
 +
 +At the U-Boot stage, interrupt the automatic boot process by pressing a key
 +and set the following environment variables before booting:
 +
 +.. code-block:: bash
 +
 +  => setenv bootargs root=ld0a
 +  => setenv kernel netbsd-GENERIC.ub
 +  => setenv fdtfile dtb/sun8i-h3-orangepi-pc.dtb
 +  => setenv bootcmd 'fatload mmc 0:1 ${kernel_addr_r} ${kernel}; fatload mmc 0:1 ${fdt_addr_r} ${fdtfile}; fdt addr ${fdt_addr_r}; bootm ${kernel_addr_r} - ${fdt_addr_r}'
 +
 +Optionally you may save the environment variables to SD card with 'saveenv'.
 +To continue booting simply give the 'boot' command and NetBSD boots.
 +
 +Orange Pi PC acceptance tests
 +"""""""""""""""""""""""""""""
 +
 +The Orange Pi PC machine has several acceptance tests included.
 +To run the whole set of tests, build QEMU from source and simply
 +provide the following command:
 +
 +.. code-block:: bash
 +
 +  $ AVOCADO_ALLOW_LARGE_STORAGE=yes avocado --show=app,console run \
 +     -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
 diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst
 index XXXXXXX..XXXXXXX 100644
 --- a/docs/system/target-arm.rst
 +++ b/docs/system/target-arm.rst
@@ -XXX,XX +XXX,XX @@ undocumented; you can get a complete list by running
  ``qemu-system-aarch64 --machine help``.
  .. toctree::
 +   :maxdepth: 1
     arm/integratorcp
     arm/versatile
@@ -XXX,XX +XXX,XX @@ undocumented; you can get a complete list by running
     arm/stellaris
     arm/musicpal
     arm/sx1
 +   arm/orangepi
  Arm CPU features
  ================
 --
 .20.1

-[Qemu-devel] [PULL 14/16] target/arm: Fix sqrt_f16 exception raising
+[PULL 30/36] hw/arm/virt: Document 'max' value in gic-version property description
-From: Alex Bennée <alex.bennee@linaro.org>
+From: Eric Auger <eric.auger@redhat.com>
-We are meant to explicitly pass fpst, not cpu_env.
+Mention 'max' value in the gic-version property description.
-Cc: qemu-stable@nongnu.org
+Signed-off-by: Eric Auger <eric.auger@redhat.com>
 Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
 Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+Reviewed-by: Andrew Jones <drjones@redhat.com>
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200311131618.7187-2-eric.auger@redhat.com
 Message-id: 20180512003217.9105-12-richard.henderson@linaro.org
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 3 ++-
+ hw/arm/virt.c | 3 ++-
 file changed, 2 insertions(+), 1 deletion(-)
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/hw/arm/virt.c b/hw/arm/virt.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/hw/arm/virt.c
-+++ b/target/arm/translate-a64.c
++++ b/hw/arm/virt.c
-@@ -XXX,XX +XXX,XX @@ static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int rn)
+@@ -XXX,XX +XXX,XX @@ static void virt_instance_init(Object *obj)
-         tcg_gen_xori_i32(tcg_res, tcg_op, 0x8000);
+                         virt_set_gic_version, NULL);
-         break;
+     object_property_set_description(obj, "gic-version",
-     case 0x3: /* FSQRT */
+                                     "Set GIC version. "
--        gen_helper_sqrt_f16(tcg_res, tcg_op, cpu_env);
+-                                    "Valid values are 2, 3 and host", NULL);
-+        fpst = get_fpstatus_ptr(true);
++                                    "Valid values are 2, 3, host and max",
-+        gen_helper_sqrt_f16(tcg_res, tcg_op, fpst);
++                                    NULL);
-         break;
-     case 0x8: /* FRINTN */
+     vms->highmem_ecam = !vmc->no_highmem_ecam;
-     case 0x9: /* FRINTP */
 --
-.17.0
+.20.1

-New patch
+[PULL 31/36] hw/arm/virt: Introduce VirtGICType enum type
+From: Eric Auger <eric.auger@redhat.com>
+We plan to introduce yet another value for the gic version (nosel).
+As we already use exotic values such as 0 and -1, let's introduce
+a dedicated enum type and let vms->gic_version take this
+type.
+Signed-off-by: Eric Auger <eric.auger@redhat.com>
+Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
+Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
+Reviewed-by: Andrew Jones <drjones@redhat.com>
+Message-id: 20200311131618.7187-3-eric.auger@redhat.com
+Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
+---
+ include/hw/arm/virt.h | 11 +++++++++--
+ hw/arm/virt.c         | 30 +++++++++++++++---------------
+files changed, 24 insertions(+), 17 deletions(-)
+diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
+index XXXXXXX..XXXXXXX 100644
+--- a/include/hw/arm/virt.h
++++ b/include/hw/arm/virt.h
+@@ -XXX,XX +XXX,XX @@ typedef enum VirtIOMMUType {
+     VIRT_IOMMU_VIRTIO,
+ } VirtIOMMUType;
++typedef enum VirtGICType {
++    VIRT_GIC_VERSION_MAX,
++    VIRT_GIC_VERSION_HOST,
++    VIRT_GIC_VERSION_2,
++    VIRT_GIC_VERSION_3,
++} VirtGICType;
++
+ typedef struct MemMapEntry {
+     hwaddr base;
+     hwaddr size;
+@@ -XXX,XX +XXX,XX @@ typedef struct {
+     bool highmem_ecam;
+     bool its;
+     bool virt;
+-    int32_t gic_version;
++    VirtGICType gic_version;
+     VirtIOMMUType iommu;
+     uint16_t virtio_iommu_bdf;
+     struct arm_boot_info bootinfo;
+@@ -XXX,XX +XXX,XX @@ static inline int virt_gicv3_redist_region_count(VirtMachineState *vms)
+     uint32_t redist0_capacity =
+                 vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE;
+-    assert(vms->gic_version == 3);
++    assert(vms->gic_version == VIRT_GIC_VERSION_3);
+     return vms->smp_cpus > redist0_capacity ? 2 : 1;
+ }
+diff --git a/hw/arm/virt.c b/hw/arm/virt.c
+index XXXXXXX..XXXXXXX 100644
+--- a/hw/arm/virt.c
++++ b/hw/arm/virt.c
+@@ -XXX,XX +XXX,XX @@ static void fdt_add_timer_nodes(const VirtMachineState *vms)
+         irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI;
+     }
+-    if (vms->gic_version == 2) {
++    if (vms->gic_version == VIRT_GIC_VERSION_2) {
+         irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START,
+                              GIC_FDT_IRQ_PPI_CPU_WIDTH,
+                              (1 << vms->smp_cpus) - 1);
+@@ -XXX,XX +XXX,XX @@ static void fdt_add_gic_node(VirtMachineState *vms)
+     qemu_fdt_setprop_cell(vms->fdt, nodename, "#address-cells", 0x2);
+     qemu_fdt_setprop_cell(vms->fdt, nodename, "#size-cells", 0x2);
+     qemu_fdt_setprop(vms->fdt, nodename, "ranges", NULL, 0);
+-    if (vms->gic_version == 3) {
++    if (vms->gic_version == VIRT_GIC_VERSION_3) {
+         int nb_redist_regions = virt_gicv3_redist_region_count(vms);
+         qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
+@@ -XXX,XX +XXX,XX @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms)
+         }
+     }
+-    if (vms->gic_version == 2) {
++    if (vms->gic_version == VIRT_GIC_VERSION_2) {
+         irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START,
+                              GIC_FDT_IRQ_PPI_CPU_WIDTH,
+                              (1 << vms->smp_cpus) - 1);
+@@ -XXX,XX +XXX,XX @@ static uint64_t virt_cpu_mp_affinity(VirtMachineState *vms, int idx)
+          * purposes are to make TCG consistent (with 64-bit KVM hosts)
+          * and to improve SGI efficiency.
+          */
+-        if (vms->gic_version == 3) {
++        if (vms->gic_version == VIRT_GIC_VERSION_3) {
+             clustersz = GICV3_TARGETLIST_BITS;
+         } else {
+             clustersz = GIC_TARGETLIST_BITS;
+@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
+     /* We can probe only here because during property set
+      * KVM is not available yet
+      */
+-    if (vms->gic_version <= 0) {
+-        /* "host" or "max" */
++    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
++        vms->gic_version == VIRT_GIC_VERSION_MAX) {
+         if (!kvm_enabled()) {
+-            if (vms->gic_version == 0) {
++            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
+                 error_report("gic-version=host requires KVM");
+                 exit(1);
+             } else {
+                 /* "max": currently means 3 for TCG */
+-                vms->gic_version = 3;
++                vms->gic_version = VIRT_GIC_VERSION_3;
+             }
+         } else {
+             vms->gic_version = kvm_arm_vgic_probe();
+@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
+     /* The maximum number of CPUs depends on the GIC version, or on how
+      * many redistributors we can fit into the memory map.
+      */
+-    if (vms->gic_version == 3) {
++    if (vms->gic_version == VIRT_GIC_VERSION_3) {
+         virt_max_cpus =
+             vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE;
+         virt_max_cpus +=
+@@ -XXX,XX +XXX,XX @@ static void virt_set_its(Object *obj, bool value, Error **errp)
+ static char *virt_get_gic_version(Object *obj, Error **errp)
+ {
+     VirtMachineState *vms = VIRT_MACHINE(obj);
+-    const char *val = vms->gic_version == 3 ? "3" : "2";
++    const char *val = vms->gic_version == VIRT_GIC_VERSION_3 ? "3" : "2";
+     return g_strdup(val);
+ }
+@@ -XXX,XX +XXX,XX @@ static void virt_set_gic_version(Object *obj, const char *value, Error **errp)
+     VirtMachineState *vms = VIRT_MACHINE(obj);
+     if (!strcmp(value, "3")) {
+-        vms->gic_version = 3;
++        vms->gic_version = VIRT_GIC_VERSION_3;
+     } else if (!strcmp(value, "2")) {
+-        vms->gic_version = 2;
++        vms->gic_version = VIRT_GIC_VERSION_2;
+     } else if (!strcmp(value, "host")) {
+-        vms->gic_version = 0; /* Will probe later */
++        vms->gic_version = VIRT_GIC_VERSION_HOST; /* Will probe later */
+     } else if (!strcmp(value, "max")) {
+-        vms->gic_version = -1; /* Will probe later */
++        vms->gic_version = VIRT_GIC_VERSION_MAX; /* Will probe later */
+     } else {
+         error_setg(errp, "Invalid gic-version value");
+         error_append_hint(errp, "Valid values are 3, 2, host, max.\n");
+@@ -XXX,XX +XXX,XX @@ static void virt_instance_init(Object *obj)
+                                     "physical address space above 32 bits",
+                                     NULL);
+     /* Default GIC type is v2 */
+-    vms->gic_version = 2;
++    vms->gic_version = VIRT_GIC_VERSION_2;
+     object_property_add_str(obj, "gic-version", virt_get_gic_version,
+                         virt_set_gic_version, NULL);
+     object_property_set_description(obj, "gic-version",
+--
+.20.1

-[Qemu-devel] [PULL 08/16] target/arm: Introduce and use read_fp_hreg
+[PULL 32/36] hw/arm/virt: Introduce finalize_gic_version()
-From: Richard Henderson <richard.henderson@linaro.org>
+From: Eric Auger <eric.auger@redhat.com>
-Cc: qemu-stable@nongnu.org
+Let's move the code which freezes which gic-version to
-Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+be applied in a dedicated function. We also now set by
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+default the VIRT_GIC_VERSION_NO_SET. This eventually
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
+turns into the legacy v2 choice in the finalize() function.
-Message-id: 20180512003217.9105-6-richard.henderson@linaro.org
 Signed-off-by: Eric Auger <eric.auger@redhat.com>
 Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 Reviewed-by: Andrew Jones <drjones@redhat.com>
 Message-id: 20200311131618.7187-4-eric.auger@redhat.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 30 ++++++++++++++----------------
+ include/hw/arm/virt.h |  1 +
-file changed, 14 insertions(+), 16 deletions(-)
+ hw/arm/virt.c         | 54 ++++++++++++++++++++++++++-----------------
 files changed, 34 insertions(+), 21 deletions(-)
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/include/hw/arm/virt.h
-+++ b/target/arm/translate-a64.c
++++ b/include/hw/arm/virt.h
-@@ -XXX,XX +XXX,XX @@ static TCGv_i32 read_fp_sreg(DisasContext *s, int reg)
+@@ -XXX,XX +XXX,XX @@ typedef enum VirtGICType {
-     return v;
+     VIRT_GIC_VERSION_HOST,
      VIRT_GIC_VERSION_2,
      VIRT_GIC_VERSION_3,
 +    VIRT_GIC_VERSION_NOSEL,
  } VirtGICType;
  typedef struct MemMapEntry {
 diff --git a/hw/arm/virt.c b/hw/arm/virt.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/virt.c
 +++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms)
      }
  }
-+static TCGv_i32 read_fp_hreg(DisasContext *s, int reg)
++/*
 + * finalize_gic_version - Determines the final gic_version
 + * according to the gic-version property
 + *
 + * Default GIC type is v2
 + */
 +static void finalize_gic_version(VirtMachineState *vms)
 +{
-+    TCGv_i32 v = tcg_temp_new_i32();
++    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
-+
++        vms->gic_version == VIRT_GIC_VERSION_MAX) {
-+    tcg_gen_ld16u_i32(v, cpu_env, fp_reg_offset(s, reg, MO_16));
++        if (!kvm_enabled()) {
-+    return v;
++            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
 +                error_report("gic-version=host requires KVM");
 +                exit(1);
 +            } else {
 +                /* "max": currently means 3 for TCG */
 +                vms->gic_version = VIRT_GIC_VERSION_3;
 +            }
 +        } else {
 +            vms->gic_version = kvm_arm_vgic_probe();
 +            if (!vms->gic_version) {
 +                error_report(
 +                    "Unable to determine GIC version supported by host");
 +                exit(1);
 +            }
 +        }
 +    } else if (vms->gic_version == VIRT_GIC_VERSION_NOSEL) {
 +        vms->gic_version = VIRT_GIC_VERSION_2;
 +    }
 +}
 +
- /* Clear the bits above an N-bit vector, for N = (is_q ? 128 : 64).
+ static void machvirt_init(MachineState *machine)
   * If SVE is not enabled, then there are only 128 bits in the vector.
   */
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
  static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int rn)
  {
-     TCGv_ptr fpst = NULL;
+     VirtMachineState *vms = VIRT_MACHINE(machine);
--    TCGv_i32 tcg_op = tcg_temp_new_i32();
+@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
-+    TCGv_i32 tcg_op = read_fp_hreg(s, rn);
+     /* We can probe only here because during property set
-     TCGv_i32 tcg_res = tcg_temp_new_i32();
+      * KVM is not available yet
+      */
--    read_vec_element_i32(s, tcg_op, rn, 0, MO_16);
+-    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
--
+-        vms->gic_version == VIRT_GIC_VERSION_MAX) {
-     switch (opcode) {
+-        if (!kvm_enabled()) {
-     case 0x0: /* FMOV */
+-            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
-         tcg_gen_mov_i32(tcg_res, tcg_op);
+-                error_report("gic-version=host requires KVM");
-@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_three_reg_diff(DisasContext *s, uint32_t insn)
+-                exit(1);
-         tcg_temp_free_i64(tcg_op2);
+-            } else {
-         tcg_temp_free_i64(tcg_res);
+-                /* "max": currently means 3 for TCG */
-     } else {
+-                vms->gic_version = VIRT_GIC_VERSION_3;
--        TCGv_i32 tcg_op1 = tcg_temp_new_i32();
+-            }
--        TCGv_i32 tcg_op2 = tcg_temp_new_i32();
+-        } else {
-+        TCGv_i32 tcg_op1 = read_fp_hreg(s, rn);
+-            vms->gic_version = kvm_arm_vgic_probe();
-+        TCGv_i32 tcg_op2 = read_fp_hreg(s, rm);
+-            if (!vms->gic_version) {
-         TCGv_i64 tcg_res = tcg_temp_new_i64();
+-                error_report(
+-                    "Unable to determine GIC version supported by host");
--        read_vec_element_i32(s, tcg_op1, rn, 0, MO_16);
+-                exit(1);
--        read_vec_element_i32(s, tcg_op2, rm, 0, MO_16);
+-            }
--
+-        }
-         gen_helper_neon_mull_s16(tcg_res, tcg_op1, tcg_op2);
+-    }
-         gen_helper_neon_addl_saturate_s32(tcg_res, cpu_env, tcg_res, tcg_res);
++    finalize_gic_version(vms);
-@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_three_reg_same_fp16(DisasContext *s,
+     if (!cpu_type_valid(machine->cpu_type)) {
+         error_report("mach-virt: CPU type %s not supported", machine->cpu_type);
-     fpst = get_fpstatus_ptr(true);
+@@ -XXX,XX +XXX,XX @@ static void virt_instance_init(Object *obj)
+                                     "Set on/off to enable/disable using "
--    tcg_op1 = tcg_temp_new_i32();
+                                     "physical address space above 32 bits",
--    tcg_op2 = tcg_temp_new_i32();
+                                     NULL);
-+    tcg_op1 = read_fp_hreg(s, rn);
+-    /* Default GIC type is v2 */
-+    tcg_op2 = read_fp_hreg(s, rm);
+-    vms->gic_version = VIRT_GIC_VERSION_2;
-     tcg_res = tcg_temp_new_i32();
++    vms->gic_version = VIRT_GIC_VERSION_NOSEL;
+     object_property_add_str(obj, "gic-version", virt_get_gic_version,
--    read_vec_element_i32(s, tcg_op1, rn, 0, MO_16);
+                         virt_set_gic_version, NULL);
--    read_vec_element_i32(s, tcg_op2, rm, 0, MO_16);
+     object_property_set_description(obj, "gic-version",
 -
      switch (fpopcode) {
      case 0x03: /* FMULX */
          gen_helper_advsimd_mulxh(tcg_res, tcg_op1, tcg_op2, fpst);
@@ -XXX,XX +XXX,XX @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn)
      }
      if (is_scalar) {
 -        TCGv_i32 tcg_op = tcg_temp_new_i32();
 +        TCGv_i32 tcg_op = read_fp_hreg(s, rn);
          TCGv_i32 tcg_res = tcg_temp_new_i32();
 -        read_vec_element_i32(s, tcg_op, rn, 0, MO_16);
 -
          switch (fpop) {
          case 0x1a: /* FCVTNS */
          case 0x1b: /* FCVTMS */
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 02/16] fpu/softfloat: Don't set Invalid for float-to-int(MAXINT)
+[PULL 33/36] target/arm/kvm: Let kvm_arm_vgic_probe() return a bitmap
-In float-to-integer conversion, if the floating point input
+From: Eric Auger <eric.auger@redhat.com>
 converts exactly to the largest or smallest integer that
 fits in to the result type, this is not an overflow.
 In this situation we were producing the correct result value,
 but were incorrectly setting the Invalid flag.
 For example for Arm A64, "FCVTAS w0, d0" on an input of
 x41dfffffffc00000 should produce 0x7fffffff and set no flags.
-Fix the boundary case to take the right half of the if()
+Convert kvm_arm_vgic_probe() so that it returns a
-statements.
+bitmap of supported in-kernel emulation VGIC versions instead
 of the max version: at the moment values can be v2 and v3.
 This allows to expose the case where the host GICv3 also
 supports GICv2 emulation. This will be useful to choose the
 default version in KVM accelerated mode.
-This fixes a regression from 2.11 introduced by the softfloat
+Signed-off-by: Eric Auger <eric.auger@redhat.com>
-refactoring.
+Reviewed-by: Andrew Jones <drjones@redhat.com>
 Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 Message-id: 20200311131618.7187-5-eric.auger@redhat.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
  target/arm/kvm_arm.h |  3 +++
  hw/arm/virt.c        | 11 +++++++++--
  target/arm/kvm.c     | 14 ++++++++------
 files changed, 20 insertions(+), 8 deletions(-)
-Cc: qemu-stable@nongnu.org
+diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h
 Fixes: ab52f973a50
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
 Message-id: 20180510140141.12120-1-peter.maydell@linaro.org
 ---
  fpu/softfloat.c | 4 ++--
 file changed, 2 insertions(+), 2 deletions(-)
 diff --git a/fpu/softfloat.c b/fpu/softfloat.c
 index XXXXXXX..XXXXXXX 100644
---- a/fpu/softfloat.c
+--- a/target/arm/kvm_arm.h
-+++ b/fpu/softfloat.c
++++ b/target/arm/kvm_arm.h
-@@ -XXX,XX +XXX,XX @@ static int64_t round_to_int_and_pack(FloatParts in, int rmode,
+@@ -XXX,XX +XXX,XX @@
-             r = UINT64_MAX;
+ #include "exec/memory.h"
-         }
+ #include "qemu/error-report.h"
-         if (p.sign) {
--            if (r < -(uint64_t) min) {
++#define KVM_ARM_VGIC_V2   (1 << 0)
-+            if (r <= -(uint64_t) min) {
++#define KVM_ARM_VGIC_V3   (1 << 1)
-                 return -r;
++
-             } else {
+ /**
-                 s->float_exception_flags = orig_flags | float_flag_invalid;
+  * kvm_arm_vcpu_init:
-                 return min;
+  * @cs: CPUState
 diff --git a/hw/arm/virt.c b/hw/arm/virt.c
 index XXXXXXX..XXXXXXX 100644
 --- a/hw/arm/virt.c
 +++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void finalize_gic_version(VirtMachineState *vms)
                  vms->gic_version = VIRT_GIC_VERSION_3;
              }
          } else {
--            if (r < max) {
+-            vms->gic_version = kvm_arm_vgic_probe();
-+            if (r <= max) {
+-            if (!vms->gic_version) {
-                 return r;
++            int probe_bitmap = kvm_arm_vgic_probe();
-             } else {
++
-                 s->float_exception_flags = orig_flags | float_flag_invalid;
++            if (!probe_bitmap) {
                  error_report(
                      "Unable to determine GIC version supported by host");
                  exit(1);
 +            } else {
 +                if (probe_bitmap & KVM_ARM_VGIC_V3) {
 +                    vms->gic_version = VIRT_GIC_VERSION_3;
 +                } else {
 +                    vms->gic_version = VIRT_GIC_VERSION_2;
 +                }
              }
          }
      } else if (vms->gic_version == VIRT_GIC_VERSION_NOSEL) {
 diff --git a/target/arm/kvm.c b/target/arm/kvm.c
 index XXXXXXX..XXXXXXX 100644
 --- a/target/arm/kvm.c
 +++ b/target/arm/kvm.c
@@ -XXX,XX +XXX,XX @@ int kvm_arch_irqchip_create(KVMState *s)
  int kvm_arm_vgic_probe(void)
  {
 +    int val = 0;
 +
      if (kvm_create_device(kvm_state,
                            KVM_DEV_TYPE_ARM_VGIC_V3, true) == 0) {
 -        return 3;
 -    } else if (kvm_create_device(kvm_state,
 -                                 KVM_DEV_TYPE_ARM_VGIC_V2, true) == 0) {
 -        return 2;
 -    } else {
 -        return 0;
 +        val |= KVM_ARM_VGIC_V3;
      }
 +    if (kvm_create_device(kvm_state,
 +                          KVM_DEV_TYPE_ARM_VGIC_V2, true) == 0) {
 +        val |= KVM_ARM_VGIC_V2;
 +    }
 +    return val;
  }
  int kvm_arm_set_irq(int cpu, int irqtype, int irq, int level)
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 13/16] target/arm: Implement FMOV (immediate) for fp16
+[PULL 34/36] hw/arm/virt: kvm: Restructure finalize_gic_version()
-From: Alex Bennée <alex.bennee@linaro.org>
+From: Eric Auger <eric.auger@redhat.com>
-All the hard work is already done by vfp_expand_imm, we just need to
+Restructure the finalize_gic_version with switch cases and
-make sure we pick up the correct size.
+clearly separate the following cases:
-Cc: qemu-stable@nongnu.org
+- KVM mode / in-kernel irqchip
-Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+- KVM mode / userspace irqchip
-Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
+- TCG mode
-Tested-by: Alex Bennée <alex.bennee@linaro.org>
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+In KVM mode / in-kernel irqchip , we explictly check whether
-Message-id: 20180512003217.9105-11-richard.henderson@linaro.org
+the chosen version is supported by the host. If the end-user
-[rth: Merge unallocated_encoding check with TCGMemOp conversion.]
+explicitly sets v2/v3 and this is not supported by the host,
-Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+then the user gets an explicit error message. Note that for
 old kernels where the CREATE_DEVICE ioctl doesn't exist then
 we will now fail if the user specifically asked for gicv2,
 where previously we (probably) would have succeeded.
 In KVM mode / userspace irqchip we immediatly output an error
 in case the end-user explicitly selected v3. Also we warn the
 end-user about the unexpected usage of gic-version=host in
 that case as only userspace GICv2 is supported.
 Signed-off-by: Eric Auger <eric.auger@redhat.com>
 Reviewed-by: Andrew Jones <drjones@redhat.com>
 Message-id: 20200311131618.7187-6-eric.auger@redhat.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 20 +++++++++++++++++---
+ hw/arm/virt.c | 88 +++++++++++++++++++++++++++++++++++++++------------
-file changed, 17 insertions(+), 3 deletions(-)
+file changed, 67 insertions(+), 21 deletions(-)
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/hw/arm/virt.c b/hw/arm/virt.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/hw/arm/virt.c
-+++ b/target/arm/translate-a64.c
++++ b/hw/arm/virt.c
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
+@@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms)
   */
  static void finalize_gic_version(VirtMachineState *vms)
  {
-     int rd = extract32(insn, 0, 5);
+-    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
-     int imm8 = extract32(insn, 13, 8);
+-        vms->gic_version == VIRT_GIC_VERSION_MAX) {
--    int is_double = extract32(insn, 22, 2);
+-        if (!kvm_enabled()) {
-+    int type = extract32(insn, 22, 2);
+-            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
-     uint64_t imm;
+-                error_report("gic-version=host requires KVM");
-     TCGv_i64 tcg_res;
+-                exit(1);
-+    TCGMemOp sz;
+-            } else {
+-                /* "max": currently means 3 for TCG */
--    if (is_double > 1) {
+-                vms->gic_version = VIRT_GIC_VERSION_3;
-+    switch (type) {
+-            }
-+    case 0:
+-        } else {
-+        sz = MO_32;
+-            int probe_bitmap = kvm_arm_vgic_probe();
-+        break;
++    if (kvm_enabled()) {
-+    case 1:
++        int probe_bitmap;
-+        sz = MO_64;
-+        break;
+-            if (!probe_bitmap) {
-+    case 3:
++        if (!kvm_irqchip_in_kernel()) {
-+        sz = MO_16;
++            switch (vms->gic_version) {
-+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
++            case VIRT_GIC_VERSION_HOST:
 +                warn_report(
 +                    "gic-version=host not relevant with kernel-irqchip=off "
 +                     "as only userspace GICv2 is supported. Using v2 ...");
 +                return;
 +            case VIRT_GIC_VERSION_MAX:
 +            case VIRT_GIC_VERSION_NOSEL:
 +                vms->gic_version = VIRT_GIC_VERSION_2;
 +                return;
 +            case VIRT_GIC_VERSION_2:
 +                return;
 +            case VIRT_GIC_VERSION_3:
                  error_report(
 -                    "Unable to determine GIC version supported by host");
 +                    "gic-version=3 is not supported with kernel-irqchip=off");
                  exit(1);
 -            } else {
 -                if (probe_bitmap & KVM_ARM_VGIC_V3) {
 -                    vms->gic_version = VIRT_GIC_VERSION_3;
 -                } else {
 -                    vms->gic_version = VIRT_GIC_VERSION_2;
 -                }
              }
          }
 -    } else if (vms->gic_version == VIRT_GIC_VERSION_NOSEL) {
 +
 +        probe_bitmap = kvm_arm_vgic_probe();
 +        if (!probe_bitmap) {
 +            error_report("Unable to determine GIC version supported by host");
 +            exit(1);
 +        }
 +
 +        switch (vms->gic_version) {
 +        case VIRT_GIC_VERSION_HOST:
 +        case VIRT_GIC_VERSION_MAX:
 +            if (probe_bitmap & KVM_ARM_VGIC_V3) {
 +                vms->gic_version = VIRT_GIC_VERSION_3;
 +            } else {
 +                vms->gic_version = VIRT_GIC_VERSION_2;
 +            }
 +            return;
 +        case VIRT_GIC_VERSION_NOSEL:
 +            vms->gic_version = VIRT_GIC_VERSION_2;
 +            break;
 +        case VIRT_GIC_VERSION_2:
 +        case VIRT_GIC_VERSION_3:
 +            break;
 +        }
-+        /* fallthru */
++
-+    default:
++        /* Check chosen version is effectively supported by the host */
-         unallocated_encoding(s);
++        if (vms->gic_version == VIRT_GIC_VERSION_2 &&
-         return;
++            !(probe_bitmap & KVM_ARM_VGIC_V2)) {
 +            error_report("host does not support in-kernel GICv2 emulation");
 +            exit(1);
 +        } else if (vms->gic_version == VIRT_GIC_VERSION_3 &&
 +                   !(probe_bitmap & KVM_ARM_VGIC_V3)) {
 +            error_report("host does not support in-kernel GICv3 emulation");
 +            exit(1);
 +        }
 +        return;
 +    }
 +
 +    /* TCG mode */
 +    switch (vms->gic_version) {
 +    case VIRT_GIC_VERSION_NOSEL:
          vms->gic_version = VIRT_GIC_VERSION_2;
 +        break;
 +    case VIRT_GIC_VERSION_MAX:
 +        vms->gic_version = VIRT_GIC_VERSION_3;
 +        break;
 +    case VIRT_GIC_VERSION_HOST:
 +        error_report("gic-version=host requires KVM");
 +        exit(1);
 +    case VIRT_GIC_VERSION_2:
 +    case VIRT_GIC_VERSION_3:
 +        break;
      }
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
+ }
-         return;
      }
 -    imm = vfp_expand_imm(MO_32 + is_double, imm8);
 +    imm = vfp_expand_imm(sz, imm8);
      tcg_res = tcg_const_i64(imm);
      write_fp_dreg(s, rd, tcg_res);
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 03/16] target/arm: Fix fp_status_f16 tininess before rounding
+[PULL 35/36] hw/arm/virt: kvm: allow gicv3 by default if v2 cannot work
-In commit d81ce0ef2c4f105 we added an extra float_status field
+From: Eric Auger <eric.auger@redhat.com>
 fp_status_fp16 for Arm, but forgot to initialize it correctly
 by setting it to float_tininess_before_rounding. This currently
 will only cause problems for the new V8_FP16 feature, since the
 float-to-float conversion code doesn't use it yet. The effect
 would be that we failed to set the Underflow IEEE exception flag
 in all the cases where we should.
-Add the missing initialization.
+At the moment if the end-user does not specify the gic-version along
 with KVM acceleration, v2 is set by default. However most of the
 systems now have GICv3 and sometimes they do not support GICv2
 compatibility.
-Fixes: d81ce0ef2c4f105
+This patch keeps the default v2 selection in all cases except
-Cc: qemu-stable@nongnu.org
+in the KVM accelerated mode when either
-Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
+- the host does not support GICv2 in-kernel emulation or
-Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
+- number of VCPUS exceeds 8.
 Those cases did not work anyway so we do not break any compatibility.
 Now we get v3 selected in such a case.
 Signed-off-by: Eric Auger <eric.auger@redhat.com>
 Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
 Reviewed-by: Andrew Jones <drjones@redhat.com>
 Message-id: 20200311131618.7187-7-eric.auger@redhat.com
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-Message-id: 20180512004311.9299-16-richard.henderson@linaro.org
 ---
- target/arm/cpu.c | 2 ++
+ hw/arm/virt.c | 17 ++++++++++++++++-
-file changed, 2 insertions(+)
+file changed, 16 insertions(+), 1 deletion(-)
-diff --git a/target/arm/cpu.c b/target/arm/cpu.c
+diff --git a/hw/arm/virt.c b/hw/arm/virt.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/cpu.c
+--- a/hw/arm/virt.c
-+++ b/target/arm/cpu.c
++++ b/hw/arm/virt.c
-@@ -XXX,XX +XXX,XX @@ static void arm_cpu_reset(CPUState *s)
+@@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms)
-                               &env->vfp.fp_status);
+  */
-     set_float_detect_tininess(float_tininess_before_rounding,
+ static void finalize_gic_version(VirtMachineState *vms)
-                               &env->vfp.standard_fp_status);
+ {
-+    set_float_detect_tininess(float_tininess_before_rounding,
++    unsigned int max_cpus = MACHINE(vms)->smp.max_cpus;
-+                              &env->vfp.fp_status_f16);
++
  #ifndef CONFIG_USER_ONLY
      if (kvm_enabled()) {
-         kvm_arm_reset_vcpu(cpu);
+         int probe_bitmap;
@@ -XXX,XX +XXX,XX @@ static void finalize_gic_version(VirtMachineState *vms)
              }
              return;
          case VIRT_GIC_VERSION_NOSEL:
 -            vms->gic_version = VIRT_GIC_VERSION_2;
 +            if ((probe_bitmap & KVM_ARM_VGIC_V2) && max_cpus <= GIC_NCPU) {
 +                vms->gic_version = VIRT_GIC_VERSION_2;
 +            } else if (probe_bitmap & KVM_ARM_VGIC_V3) {
 +                /*
 +                 * in case the host does not support v2 in-kernel emulation or
 +                 * the end-user requested more than 8 VCPUs we now default
 +                 * to v3. In any case defaulting to v2 would be broken.
 +                 */
 +                vms->gic_version = VIRT_GIC_VERSION_3;
 +            } else if (max_cpus > GIC_NCPU) {
 +                error_report("host only supports in-kernel GICv2 emulation "
 +                             "but more than 8 vcpus are requested");
 +                exit(1);
 +            }
              break;
          case VIRT_GIC_VERSION_2:
          case VIRT_GIC_VERSION_3:
 --
-.17.0
+.20.1

-[Qemu-devel] [PULL 12/16] target/arm: Implement FCSEL for fp16
+[PULL 36/36] target/arm: kvm: Inject events at the last stage of sync
-From: Alex Bennée <alex.bennee@linaro.org>
+From: Beata Michalska <beata.michalska@linaro.org>
-These were missed out from the rest of the half-precision work.
+KVM_SET_VCPU_EVENTS might actually lead to vcpu registers being modified.
 As such this should be the last step of sync to avoid potential overwriting
 of whatever changes KVM might have done.
-Cc: qemu-stable@nongnu.org
+Signed-off-by: Beata Michalska <beata.michalska@linaro.org>
-Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+Reviewed-by: Andrew Jones <drjones@redhat.com>
-Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
+Message-id: 20200312003401.29017-2-beata.michalska@linaro.org
 Tested-by: Alex Bennée <alex.bennee@linaro.org>
 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 Message-id: 20180512003217.9105-10-richard.henderson@linaro.org
 [rth: Fix erroneous check vs type]
 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 ---
- target/arm/translate-a64.c | 31 +++++++++++++++++++++++++------
+ target/arm/kvm32.c | 15 ++++++++++-----
-file changed, 25 insertions(+), 6 deletions(-)
+ target/arm/kvm64.c | 15 ++++++++++-----
 files changed, 20 insertions(+), 10 deletions(-)
-diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
+diff --git a/target/arm/kvm32.c b/target/arm/kvm32.c
 index XXXXXXX..XXXXXXX 100644
---- a/target/arm/translate-a64.c
+--- a/target/arm/kvm32.c
-+++ b/target/arm/translate-a64.c
++++ b/target/arm/kvm32.c
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
+@@ -XXX,XX +XXX,XX @@ int kvm_arch_put_registers(CPUState *cs, int level)
-     unsigned int mos, type, rm, cond, rn, rd;
+         return ret;
-     TCGv_i64 t_true, t_false, t_zero;
+     }
-     DisasCompare64 c;
-+    TCGMemOp sz;
+-    ret = kvm_put_vcpu_events(cpu);
+-    if (ret) {
-     mos = extract32(insn, 29, 3);
+-        return ret;
--    type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
+-    }
-+    type = extract32(insn, 22, 2);
+-
-     rm = extract32(insn, 16, 5);
+     write_cpustate_to_list(cpu, true);
-     cond = extract32(insn, 12, 4);
-     rn = extract32(insn, 5, 5);
+     if (!write_list_to_kvmstate(cpu, level)) {
-     rd = extract32(insn, 0, 5);
+         return EINVAL;
+     }
--    if (mos || type > 1) {
-+    if (mos) {
++    /*
-+        unallocated_encoding(s);
++     * Setting VCPU events should be triggered after syncing the registers
-+        return;
++     * to avoid overwriting potential changes made by KVM upon calling
 +     * KVM_SET_VCPU_EVENTS ioctl
 +     */
 +    ret = kvm_put_vcpu_events(cpu);
 +    if (ret) {
 +        return ret;
 +    }
 +
-+    switch (type) {
+     kvm_arm_sync_mpstate_to_kvm(cpu);
-+    case 0:
-+        sz = MO_32;
+     return ret;
-+        break;
+diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
-+    case 1:
+index XXXXXXX..XXXXXXX 100644
-+        sz = MO_64;
+--- a/target/arm/kvm64.c
-+        break;
++++ b/target/arm/kvm64.c
-+    case 3:
+@@ -XXX,XX +XXX,XX @@ int kvm_arch_put_registers(CPUState *cs, int level)
-+        sz = MO_16;
+         return ret;
 +        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
 +            break;
 +        }
 +        /* fallthru */
 +    default:
          unallocated_encoding(s);
          return;
      }
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
-         return;
+-    ret = kvm_put_vcpu_events(cpu);
 -    if (ret) {
 -        return ret;
 -    }
 -
      write_cpustate_to_list(cpu, true);
      if (!write_list_to_kvmstate(cpu, level)) {
          return -EINVAL;
      }
--    /* Zero extend sreg inputs to 64 bits now.  */
++   /*
-+    /* Zero extend sreg & hreg inputs to 64 bits now.  */
++    * Setting VCPU events should be triggered after syncing the registers
-     t_true = tcg_temp_new_i64();
++    * to avoid overwriting potential changes made by KVM upon calling
-     t_false = tcg_temp_new_i64();
++    * KVM_SET_VCPU_EVENTS ioctl
--    read_vec_element(s, t_true, rn, 0, type ? MO_64 : MO_32);
++    */
--    read_vec_element(s, t_false, rm, 0, type ? MO_64 : MO_32);
++    ret = kvm_put_vcpu_events(cpu);
-+    read_vec_element(s, t_true, rn, 0, sz);
++    if (ret) {
-+    read_vec_element(s, t_false, rm, 0, sz);
++        return ret;
++    }
-     a64_test_cc(&c, cond);
++
-     t_zero = tcg_const_i64(0);
+     kvm_arm_sync_mpstate_to_kvm(cpu);
-@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
-     tcg_temp_free_i64(t_false);
+     return ret;
      a64_free_cc(&c);
 -    /* Note that sregs write back zeros to the high bits,
 +    /* Note that sregs & hregs write back zeros to the high bits,
         and we've already done the zero-extension.  */
      write_fp_dreg(s, rd, t_true);
      tcg_temp_free_i64(t_true);
 --
-.17.0
+.20.1

The following changes since commit ad1b4ec39caa5b3f17cbd8160283a03a3dcfe2ae:

Merge remote-tracking branch 'remotes/kraxel/tags/input-20180515-pull-request' into staging (2018-05-15 12:50:06 +0100)

are available in the Git repository at:

git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20180515

for you to fetch changes up to ae7651804748c6b479d5ae09aeac4edb9c44f76e:

tcg: Optionally log FPU state in TCG -d cpu logging (2018-05-15 14:58:44 +0100)

----------------------------------------------------------------
target-arm queue:
 * Fix coverity nit in int_to_float code
 * Don't set Invalid for float-to-int(MAXINT)
 * Fix fp_status_f16 tininess before rounding
 * Add various missing insns from the v8.2-FP16 extension
 * Fix sqrt_f16 exception raising
 * sdcard: Correct CRC16 offset in sd_function_switch()
 * tcg: Optionally log FPU state in TCG -d cpu logging

----------------------------------------------------------------
Alex Bennée (5):
      fpu/softfloat: int_to_float ensure r fully initialised
      target/arm: Implement FCMP for fp16
      target/arm: Implement FCSEL for fp16
      target/arm: Implement FMOV (immediate) for fp16
      target/arm: Fix sqrt_f16 exception raising

Peter Maydell (3):
      fpu/softfloat: Don't set Invalid for float-to-int(MAXINT)
      target/arm: Fix fp_status_f16 tininess before rounding
      tcg: Optionally log FPU state in TCG -d cpu logging

Philippe Mathieu-Daudé (1):
      sdcard: Correct CRC16 offset in sd_function_switch()

Richard Henderson (7):
      target/arm: Implement FMOV (general) for fp16
      target/arm: Early exit after unallocated_encoding in disas_fp_int_conv
      target/arm: Implement FCVT (scalar, integer) for fp16
      target/arm: Implement FCVT (scalar, fixed-point) for fp16
      target/arm: Introduce and use read_fp_hreg
      target/arm: Implement FP data-processing (2 source) for fp16
      target/arm: Implement FP data-processing (3 source) for fp16

In float-to-integer conversion, if the floating point input
converts exactly to the largest or smallest integer that
fits in to the result type, this is not an overflow.
In this situation we were producing the correct result value,
but were incorrectly setting the Invalid flag.
For example for Arm A64, "FCVTAS w0, d0" on an input of
0x41dfffffffc00000 should produce 0x7fffffff and set no flags.

Fix the boundary case to take the right half of the if()
statements.

This fixes a regression from 2.11 introduced by the softfloat
refactoring.

Cc: qemu-stable@nongnu.org
Fixes: ab52f973a50
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180510140141.12120-1-peter.maydell@linaro.org
---
 fpu/softfloat.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index XXXXXXX..XXXXXXX 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -XXX,XX +XXX,XX @@ static int64_t round_to_int_and_pack(FloatParts in, int rmode,
             r = UINT64_MAX;
         }
         if (p.sign) {
-            if (r < -(uint64_t) min) {
+            if (r <= -(uint64_t) min) {
                 return -r;
             } else {
                 s->float_exception_flags = orig_flags | float_flag_invalid;
                 return min;
             }
         } else {
-            if (r < max) {
+            if (r <= max) {
                 return r;
             } else {
                 s->float_exception_flags = orig_flags | float_flag_invalid;
-- 
2.17.0

In commit d81ce0ef2c4f105 we added an extra float_status field
fp_status_fp16 for Arm, but forgot to initialize it correctly
by setting it to float_tininess_before_rounding. This currently
will only cause problems for the new V8_FP16 feature, since the
float-to-float conversion code doesn't use it yet. The effect
would be that we failed to set the Underflow IEEE exception flag
in all the cases where we should.

Add the missing initialization.

Fixes: d81ce0ef2c4f105
Cc: qemu-stable@nongnu.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180512004311.9299-16-richard.henderson@linaro.org
---
 target/arm/cpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_reset(CPUState *s)
                               &env->vfp.fp_status);
     set_float_detect_tininess(float_tininess_before_rounding,
                               &env->vfp.standard_fp_status);
+    set_float_detect_tininess(float_tininess_before_rounding,
+                              &env->vfp.fp_status_f16);
 #ifndef CONFIG_USER_ONLY
     if (kvm_enabled()) {
         kvm_arm_reset_vcpu(cpu);
-- 
2.17.0

From: Richard Henderson <richard.henderson@linaro.org>

Adding the fp16 moves to/from general registers.

Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
             tcg_gen_st_i64(tcg_rn, cpu_env, fp_reg_hi_offset(s, rd));
             clear_vec_high(s, true, rd);
             break;
+        case 3:
+            /* 16 bit */
+            tmp = tcg_temp_new_i64();
+            tcg_gen_ext16u_i64(tmp, tcg_rn);
+            write_fp_dreg(s, rd, tmp);
+            tcg_temp_free_i64(tmp);
+            break;
+        default:
+            g_assert_not_reached();
         }
     } else {
         TCGv_i64 tcg_rd = cpu_reg(s, rd);
@@ -XXX,XX +XXX,XX @@ static void handle_fmov(DisasContext *s, int rd, int rn, int type, bool itof)
             /* 64 bits from top half */
             tcg_gen_ld_i64(tcg_rd, cpu_env, fp_reg_hi_offset(s, rn));
             break;
+        case 3:
+            /* 16 bit */
+            tcg_gen_ld16u_i64(tcg_rd, cpu_env, fp_reg_offset(s, rn, MO_16));
+            break;
+        default:
+            g_assert_not_reached();
         }
     }
 }
@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
         case 0xa: /* 64 bit */
         case 0xd: /* 64 bit to top half of quad */
             break;
+        case 0x6: /* 16-bit float, 32-bit int */
+        case 0xe: /* 16-bit float, 64-bit int */
+            if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+                break;
+            }
+            /* fallthru */
         default:
             /* all other sf/type/rmode combinations are invalid */
             unallocated_encoding(s);
-- 
2.17.0

From: Richard Henderson <richard.henderson@linaro.org>

Cc: qemu-stable@nongnu.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/helper.h        |  6 +++
 target/arm/helper.c        | 38 ++++++++++++++-
 target/arm/translate-a64.c | 96 +++++++++++++++++++++++++++++++-------
 3 files changed, 122 insertions(+), 18 deletions(-)

diff --git a/target/arm/helper.h b/target/arm/helper.h
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_3(vfp_touhd_round_to_zero, i64, f64, i32, ptr)
 DEF_HELPER_3(vfp_tould_round_to_zero, i64, f64, i32, ptr)
 DEF_HELPER_3(vfp_touhh, i32, f16, i32, ptr)
 DEF_HELPER_3(vfp_toshh, i32, f16, i32, ptr)
+DEF_HELPER_3(vfp_toulh, i32, f16, i32, ptr)
+DEF_HELPER_3(vfp_toslh, i32, f16, i32, ptr)
+DEF_HELPER_3(vfp_touqh, i64, f16, i32, ptr)
+DEF_HELPER_3(vfp_tosqh, i64, f16, i32, ptr)
 DEF_HELPER_3(vfp_toshs, i32, f32, i32, ptr)
 DEF_HELPER_3(vfp_tosls, i32, f32, i32, ptr)
 DEF_HELPER_3(vfp_tosqs, i64, f32, i32, ptr)
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_3(vfp_ultod, f64, i64, i32, ptr)
 DEF_HELPER_3(vfp_uqtod, f64, i64, i32, ptr)
 DEF_HELPER_3(vfp_sltoh, f16, i32, i32, ptr)
 DEF_HELPER_3(vfp_ultoh, f16, i32, i32, ptr)
+DEF_HELPER_3(vfp_sqtoh, f16, i64, i32, ptr)
+DEF_HELPER_3(vfp_uqtoh, f16, i64, i32, ptr)
 
 DEF_HELPER_FLAGS_2(set_rmode, TCG_CALL_NO_RWG, i32, i32, ptr)
 DEF_HELPER_FLAGS_2(set_neon_rmode, TCG_CALL_NO_RWG, i32, i32, env)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -XXX,XX +XXX,XX @@ VFP_CONV_FIX_A64(uq, s, 32, 64, uint64)
 #undef VFP_CONV_FIX_A64
 
 /* Conversion to/from f16 can overflow to infinity before/after scaling.
- * Therefore we convert to f64 (which does not round), scale,
- * and then convert f64 to f16 (which may round).
+ * Therefore we convert to f64, scale, and then convert f64 to f16; or
+ * vice versa for conversion to integer.
+ *
+ * For 16- and 32-bit integers, the conversion to f64 never rounds.
+ * For 64-bit integers, any integer that would cause rounding will also
+ * overflow to f16 infinity, so there is no double rounding problem.
  */
 
 static float16 do_postscale_fp16(float64 f, int shift, float_status *fpst)
@@ -XXX,XX +XXX,XX @@ float16 HELPER(vfp_ultoh)(uint32_t x, uint32_t shift, void *fpst)
     return do_postscale_fp16(uint32_to_float64(x, fpst), shift, fpst);
 }
 
+float16 HELPER(vfp_sqtoh)(uint64_t x, uint32_t shift, void *fpst)
+{
+    return do_postscale_fp16(int64_to_float64(x, fpst), shift, fpst);
+}
+
+float16 HELPER(vfp_uqtoh)(uint64_t x, uint32_t shift, void *fpst)
+{
+    return do_postscale_fp16(uint64_to_float64(x, fpst), shift, fpst);
+}
+
 static float64 do_prescale_fp16(float16 f, int shift, float_status *fpst)
 {
     if (unlikely(float16_is_any_nan(f))) {
@@ -XXX,XX +XXX,XX @@ uint32_t HELPER(vfp_touhh)(float16 x, uint32_t shift, void *fpst)
     return float64_to_uint16(do_prescale_fp16(x, shift, fpst), fpst);
 }
 
+uint32_t HELPER(vfp_toslh)(float16 x, uint32_t shift, void *fpst)
+{
+    return float64_to_int32(do_prescale_fp16(x, shift, fpst), fpst);
+}
+
+uint32_t HELPER(vfp_toulh)(float16 x, uint32_t shift, void *fpst)
+{
+    return float64_to_uint32(do_prescale_fp16(x, shift, fpst), fpst);
+}
+
+uint64_t HELPER(vfp_tosqh)(float16 x, uint32_t shift, void *fpst)
+{
+    return float64_to_int64(do_prescale_fp16(x, shift, fpst), fpst);
+}
+
+uint64_t HELPER(vfp_touqh)(float16 x, uint32_t shift, void *fpst)
+{
+    return float64_to_uint64(do_prescale_fp16(x, shift, fpst), fpst);
+}
+
 /* Set the current fp rounding mode and return the old one.
  * The argument is a softfloat float_round_ value.
  */
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
                            bool itof, int rmode, int scale, int sf, int type)
 {
     bool is_signed = !(opcode & 1);
-    bool is_double = type;
     TCGv_ptr tcg_fpstatus;
-    TCGv_i32 tcg_shift;
+    TCGv_i32 tcg_shift, tcg_single;
+    TCGv_i64 tcg_double;
 
-    tcg_fpstatus = get_fpstatus_ptr(false);
+    tcg_fpstatus = get_fpstatus_ptr(type == 3);
 
     tcg_shift = tcg_const_i32(64 - scale);
 
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
             tcg_int = tcg_extend;
         }
 
-        if (is_double) {
-            TCGv_i64 tcg_double = tcg_temp_new_i64();
+        switch (type) {
+        case 1: /* float64 */
+            tcg_double = tcg_temp_new_i64();
             if (is_signed) {
                 gen_helper_vfp_sqtod(tcg_double, tcg_int,
                                      tcg_shift, tcg_fpstatus);
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
             }
             write_fp_dreg(s, rd, tcg_double);
             tcg_temp_free_i64(tcg_double);
-        } else {
-            TCGv_i32 tcg_single = tcg_temp_new_i32();
+            break;
+
+        case 0: /* float32 */
+            tcg_single = tcg_temp_new_i32();
             if (is_signed) {
                 gen_helper_vfp_sqtos(tcg_single, tcg_int,
                                      tcg_shift, tcg_fpstatus);
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
             }
             write_fp_sreg(s, rd, tcg_single);
             tcg_temp_free_i32(tcg_single);
+            break;
+
+        case 3: /* float16 */
+            tcg_single = tcg_temp_new_i32();
+            if (is_signed) {
+                gen_helper_vfp_sqtoh(tcg_single, tcg_int,
+                                     tcg_shift, tcg_fpstatus);
+            } else {
+                gen_helper_vfp_uqtoh(tcg_single, tcg_int,
+                                     tcg_shift, tcg_fpstatus);
+            }
+            write_fp_sreg(s, rd, tcg_single);
+            tcg_temp_free_i32(tcg_single);
+            break;
+
+        default:
+            g_assert_not_reached();
         }
     } else {
         TCGv_i64 tcg_int = cpu_reg(s, rd);
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
 
         gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
 
-        if (is_double) {
-            TCGv_i64 tcg_double = read_fp_dreg(s, rn);
+        switch (type) {
+        case 1: /* float64 */
+            tcg_double = read_fp_dreg(s, rn);
             if (is_signed) {
                 if (!sf) {
                     gen_helper_vfp_tosld(tcg_int, tcg_double,
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
                                          tcg_shift, tcg_fpstatus);
                 }
             }
+            if (!sf) {
+                tcg_gen_ext32u_i64(tcg_int, tcg_int);
+            }
             tcg_temp_free_i64(tcg_double);
-        } else {
-            TCGv_i32 tcg_single = read_fp_sreg(s, rn);
+            break;
+
+        case 0: /* float32 */
+            tcg_single = read_fp_sreg(s, rn);
             if (sf) {
                 if (is_signed) {
                     gen_helper_vfp_tosqs(tcg_int, tcg_single,
@@ -XXX,XX +XXX,XX @@ static void handle_fpfpcvt(DisasContext *s, int rd, int rn, int opcode,
                 tcg_temp_free_i32(tcg_dest);
             }
             tcg_temp_free_i32(tcg_single);
+            break;
+
+        case 3: /* float16 */
+            tcg_single = read_fp_sreg(s, rn);
+            if (sf) {
+                if (is_signed) {
+                    gen_helper_vfp_tosqh(tcg_int, tcg_single,
+                                         tcg_shift, tcg_fpstatus);
+                } else {
+                    gen_helper_vfp_touqh(tcg_int, tcg_single,
+                                         tcg_shift, tcg_fpstatus);
+                }
+            } else {
+                TCGv_i32 tcg_dest = tcg_temp_new_i32();
+                if (is_signed) {
+                    gen_helper_vfp_toslh(tcg_dest, tcg_single,
+                                         tcg_shift, tcg_fpstatus);
+                } else {
+                    gen_helper_vfp_toulh(tcg_dest, tcg_single,
+                                         tcg_shift, tcg_fpstatus);
+                }
+                tcg_gen_extu_i32_i64(tcg_int, tcg_dest);
+                tcg_temp_free_i32(tcg_dest);
+            }
+            tcg_temp_free_i32(tcg_single);
+            break;
+
+        default:
+            g_assert_not_reached();
         }
 
         gen_helper_set_rmode(tcg_rmode, tcg_rmode, tcg_fpstatus);
         tcg_temp_free_i32(tcg_rmode);
-
-        if (!sf) {
-            tcg_gen_ext32u_i64(tcg_int, tcg_int);
-        }
     }
 
     tcg_temp_free_ptr(tcg_fpstatus);
@@ -XXX,XX +XXX,XX @@ static void disas_fp_int_conv(DisasContext *s, uint32_t insn)
         /* actual FP conversions */
         bool itof = extract32(opcode, 1, 1);
 
-        if (type > 1 || (rmode != 0 && opcode > 1)) {
+        if (rmode != 0 && opcode > 1) {
+            unallocated_encoding(s);
+            return;
+        }
+        switch (type) {
+        case 0: /* float32 */
+        case 1: /* float64 */
+            break;
+        case 3: /* float16 */
+            if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+                break;
+            }
+            /* fallthru */
+        default:
             unallocated_encoding(s);
             return;
         }
-- 
2.17.0

From: Richard Henderson <richard.henderson@linaro.org>

Cc: qemu-stable@nongnu.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn)
     bool sf = extract32(insn, 31, 1);
     bool itof;
 
-    if (sbit || (type > 1)
-        || (!sf && scale < 32)) {
+    if (sbit || (!sf && scale < 32)) {
+        unallocated_encoding(s);
+        return;
+    }
+
+    switch (type) {
+    case 0: /* float32 */
+    case 1: /* float64 */
+        break;
+    case 3: /* float16 */
+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            break;
+        }
+        /* fallthru */
+    default:
         unallocated_encoding(s);
         return;
     }
-- 
2.17.0

From: Richard Henderson <richard.henderson@linaro.org>

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static TCGv_i32 read_fp_sreg(DisasContext *s, int reg)
     return v;
 }
 
+static TCGv_i32 read_fp_hreg(DisasContext *s, int reg)
+{
+    TCGv_i32 v = tcg_temp_new_i32();
+
+    tcg_gen_ld16u_i32(v, cpu_env, fp_reg_offset(s, reg, MO_16));
+    return v;
+}
+
 /* Clear the bits above an N-bit vector, for N = (is_q ? 128 : 64).
  * If SVE is not enabled, then there are only 128 bits in the vector.
  */
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
 static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int rn)
 {
     TCGv_ptr fpst = NULL;
-    TCGv_i32 tcg_op = tcg_temp_new_i32();
+    TCGv_i32 tcg_op = read_fp_hreg(s, rn);
     TCGv_i32 tcg_res = tcg_temp_new_i32();
 
-    read_vec_element_i32(s, tcg_op, rn, 0, MO_16);
-
     switch (opcode) {
     case 0x0: /* FMOV */
         tcg_gen_mov_i32(tcg_res, tcg_op);
@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_three_reg_diff(DisasContext *s, uint32_t insn)
         tcg_temp_free_i64(tcg_op2);
         tcg_temp_free_i64(tcg_res);
     } else {
-        TCGv_i32 tcg_op1 = tcg_temp_new_i32();
-        TCGv_i32 tcg_op2 = tcg_temp_new_i32();
+        TCGv_i32 tcg_op1 = read_fp_hreg(s, rn);
+        TCGv_i32 tcg_op2 = read_fp_hreg(s, rm);
         TCGv_i64 tcg_res = tcg_temp_new_i64();
 
-        read_vec_element_i32(s, tcg_op1, rn, 0, MO_16);
-        read_vec_element_i32(s, tcg_op2, rm, 0, MO_16);
-
         gen_helper_neon_mull_s16(tcg_res, tcg_op1, tcg_op2);
         gen_helper_neon_addl_saturate_s32(tcg_res, cpu_env, tcg_res, tcg_res);
 
@@ -XXX,XX +XXX,XX @@ static void disas_simd_scalar_three_reg_same_fp16(DisasContext *s,
 
     fpst = get_fpstatus_ptr(true);
 
-    tcg_op1 = tcg_temp_new_i32();
-    tcg_op2 = tcg_temp_new_i32();
+    tcg_op1 = read_fp_hreg(s, rn);
+    tcg_op2 = read_fp_hreg(s, rm);
     tcg_res = tcg_temp_new_i32();
 
-    read_vec_element_i32(s, tcg_op1, rn, 0, MO_16);
-    read_vec_element_i32(s, tcg_op2, rm, 0, MO_16);
-
     switch (fpopcode) {
     case 0x03: /* FMULX */
         gen_helper_advsimd_mulxh(tcg_res, tcg_op1, tcg_op2, fpst);
@@ -XXX,XX +XXX,XX @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn)
     }
 
     if (is_scalar) {
-        TCGv_i32 tcg_op = tcg_temp_new_i32();
+        TCGv_i32 tcg_op = read_fp_hreg(s, rn);
         TCGv_i32 tcg_res = tcg_temp_new_i32();
 
-        read_vec_element_i32(s, tcg_op, rn, 0, MO_16);
-
         switch (fpop) {
         case 0x1a: /* FCVTNS */
         case 0x1b: /* FCVTMS */
-- 
2.17.0

From: Richard Henderson <richard.henderson@linaro.org>

We missed all of the scalar fp16 binary operations.

Cc: qemu-stable@nongnu.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 65 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void handle_fp_2src_double(DisasContext *s, int opcode,
     tcg_temp_free_i64(tcg_res);
 }
 
+/* Floating-point data-processing (2 source) - half precision */
+static void handle_fp_2src_half(DisasContext *s, int opcode,
+                                int rd, int rn, int rm)
+{
+    TCGv_i32 tcg_op1;
+    TCGv_i32 tcg_op2;
+    TCGv_i32 tcg_res;
+    TCGv_ptr fpst;
+
+    tcg_res = tcg_temp_new_i32();
+    fpst = get_fpstatus_ptr(true);
+    tcg_op1 = read_fp_hreg(s, rn);
+    tcg_op2 = read_fp_hreg(s, rm);
+
+    switch (opcode) {
+    case 0x0: /* FMUL */
+        gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x1: /* FDIV */
+        gen_helper_advsimd_divh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x2: /* FADD */
+        gen_helper_advsimd_addh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x3: /* FSUB */
+        gen_helper_advsimd_subh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x4: /* FMAX */
+        gen_helper_advsimd_maxh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x5: /* FMIN */
+        gen_helper_advsimd_minh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x6: /* FMAXNM */
+        gen_helper_advsimd_maxnumh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x7: /* FMINNM */
+        gen_helper_advsimd_minnumh(tcg_res, tcg_op1, tcg_op2, fpst);
+        break;
+    case 0x8: /* FNMUL */
+        gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
+        tcg_gen_xori_i32(tcg_res, tcg_res, 0x8000);
+        break;
+    default:
+        g_assert_not_reached();
+    }
+
+    write_fp_sreg(s, rd, tcg_res);
+
+    tcg_temp_free_ptr(fpst);
+    tcg_temp_free_i32(tcg_op1);
+    tcg_temp_free_i32(tcg_op2);
+    tcg_temp_free_i32(tcg_res);
+}
+
 /* Floating point data-processing (2 source)
  *   31  30  29 28       24 23  22  21 20  16 15    12 11 10 9    5 4    0
  * +---+---+---+-----------+------+---+------+--------+-----+------+------+
@@ -XXX,XX +XXX,XX @@ static void disas_fp_2src(DisasContext *s, uint32_t insn)
         }
         handle_fp_2src_double(s, opcode, rd, rn, rm);
         break;
+    case 3:
+        if (!arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            unallocated_encoding(s);
+            return;
+        }
+        if (!fp_access_check(s)) {
+            return;
+        }
+        handle_fp_2src_half(s, opcode, rd, rn, rm);
+        break;
     default:
         unallocated_encoding(s);
     }
-- 
2.17.0

From: Richard Henderson <richard.henderson@linaro.org>

We missed all of the scalar fp16 fma operations.

Cc: qemu-stable@nongnu.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void handle_fp_3src_double(DisasContext *s, bool o0, bool o1,
     tcg_temp_free_i64(tcg_res);
 }
 
+/* Floating-point data-processing (3 source) - half precision */
+static void handle_fp_3src_half(DisasContext *s, bool o0, bool o1,
+                                int rd, int rn, int rm, int ra)
+{
+    TCGv_i32 tcg_op1, tcg_op2, tcg_op3;
+    TCGv_i32 tcg_res = tcg_temp_new_i32();
+    TCGv_ptr fpst = get_fpstatus_ptr(true);
+
+    tcg_op1 = read_fp_hreg(s, rn);
+    tcg_op2 = read_fp_hreg(s, rm);
+    tcg_op3 = read_fp_hreg(s, ra);
+
+    /* These are fused multiply-add, and must be done as one
+     * floating point operation with no rounding between the
+     * multiplication and addition steps.
+     * NB that doing the negations here as separate steps is
+     * correct : an input NaN should come out with its sign bit
+     * flipped if it is a negated-input.
+     */
+    if (o1 == true) {
+        tcg_gen_xori_i32(tcg_op3, tcg_op3, 0x8000);
+    }
+
+    if (o0 != o1) {
+        tcg_gen_xori_i32(tcg_op1, tcg_op1, 0x8000);
+    }
+
+    gen_helper_advsimd_muladdh(tcg_res, tcg_op1, tcg_op2, tcg_op3, fpst);
+
+    write_fp_sreg(s, rd, tcg_res);
+
+    tcg_temp_free_ptr(fpst);
+    tcg_temp_free_i32(tcg_op1);
+    tcg_temp_free_i32(tcg_op2);
+    tcg_temp_free_i32(tcg_op3);
+    tcg_temp_free_i32(tcg_res);
+}
+
 /* Floating point data-processing (3 source)
  *   31  30  29 28       24 23  22  21  20  16  15  14  10 9    5 4    0
  * +---+---+---+-----------+------+----+------+----+------+------+------+
@@ -XXX,XX +XXX,XX @@ static void disas_fp_3src(DisasContext *s, uint32_t insn)
         }
         handle_fp_3src_double(s, o0, o1, rd, rn, rm, ra);
         break;
+    case 3:
+        if (!arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            unallocated_encoding(s);
+            return;
+        }
+        if (!fp_access_check(s)) {
+            return;
+        }
+        handle_fp_3src_half(s, o0, o1, rd, rn, rm, ra);
+        break;
     default:
         unallocated_encoding(s);
     }
-- 
2.17.0

From: Alex Bennée <alex.bennee@linaro.org>

These where missed out from the rest of the half-precision work.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180512003217.9105-9-richard.henderson@linaro.org
[rth: Diagnose lack of FP16 before fp_access_check]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/helper-a64.h    |  2 +
 target/arm/helper-a64.c    | 10 +++++
 target/arm/translate-a64.c | 88 ++++++++++++++++++++++++++++++--------
 3 files changed, 83 insertions(+), 17 deletions(-)

diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper-a64.h
+++ b/target/arm/helper-a64.h
@@ -XXX,XX +XXX,XX @@
 DEF_HELPER_FLAGS_2(udiv64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
 DEF_HELPER_FLAGS_2(sdiv64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
 DEF_HELPER_FLAGS_1(rbit64, TCG_CALL_NO_RWG_SE, i64, i64)
+DEF_HELPER_3(vfp_cmph_a64, i64, f16, f16, ptr)
+DEF_HELPER_3(vfp_cmpeh_a64, i64, f16, f16, ptr)
 DEF_HELPER_3(vfp_cmps_a64, i64, f32, f32, ptr)
 DEF_HELPER_3(vfp_cmpes_a64, i64, f32, f32, ptr)
 DEF_HELPER_3(vfp_cmpd_a64, i64, f64, f64, ptr)
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper-a64.c
+++ b/target/arm/helper-a64.c
@@ -XXX,XX +XXX,XX @@ static inline uint32_t float_rel_to_flags(int res)
     return flags;
 }
 
+uint64_t HELPER(vfp_cmph_a64)(float16 x, float16 y, void *fp_status)
+{
+    return float_rel_to_flags(float16_compare_quiet(x, y, fp_status));
+}
+
+uint64_t HELPER(vfp_cmpeh_a64)(float16 x, float16 y, void *fp_status)
+{
+    return float_rel_to_flags(float16_compare(x, y, fp_status));
+}
+
 uint64_t HELPER(vfp_cmps_a64)(float32 x, float32 y, void *fp_status)
 {
     return float_rel_to_flags(float32_compare_quiet(x, y, fp_status));
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void disas_data_proc_reg(DisasContext *s, uint32_t insn)
     }
 }
 
-static void handle_fp_compare(DisasContext *s, bool is_double,
+static void handle_fp_compare(DisasContext *s, int size,
                               unsigned int rn, unsigned int rm,
                               bool cmp_with_zero, bool signal_all_nans)
 {
     TCGv_i64 tcg_flags = tcg_temp_new_i64();
-    TCGv_ptr fpst = get_fpstatus_ptr(false);
+    TCGv_ptr fpst = get_fpstatus_ptr(size == MO_16);
 
-    if (is_double) {
+    if (size == MO_64) {
         TCGv_i64 tcg_vn, tcg_vm;
 
         tcg_vn = read_fp_dreg(s, rn);
@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, bool is_double,
         tcg_temp_free_i64(tcg_vn);
         tcg_temp_free_i64(tcg_vm);
     } else {
-        TCGv_i32 tcg_vn, tcg_vm;
+        TCGv_i32 tcg_vn = tcg_temp_new_i32();
+        TCGv_i32 tcg_vm = tcg_temp_new_i32();
 
-        tcg_vn = read_fp_sreg(s, rn);
+        read_vec_element_i32(s, tcg_vn, rn, 0, size);
         if (cmp_with_zero) {
-            tcg_vm = tcg_const_i32(0);
+            tcg_gen_movi_i32(tcg_vm, 0);
         } else {
-            tcg_vm = read_fp_sreg(s, rm);
+            read_vec_element_i32(s, tcg_vm, rm, 0, size);
         }
-        if (signal_all_nans) {
-            gen_helper_vfp_cmpes_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
-        } else {
-            gen_helper_vfp_cmps_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
+
+        switch (size) {
+        case MO_32:
+            if (signal_all_nans) {
+                gen_helper_vfp_cmpes_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
+            } else {
+                gen_helper_vfp_cmps_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
+            }
+            break;
+        case MO_16:
+            if (signal_all_nans) {
+                gen_helper_vfp_cmpeh_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
+            } else {
+                gen_helper_vfp_cmph_a64(tcg_flags, tcg_vn, tcg_vm, fpst);
+            }
+            break;
+        default:
+            g_assert_not_reached();
         }
+
         tcg_temp_free_i32(tcg_vn);
         tcg_temp_free_i32(tcg_vm);
     }
@@ -XXX,XX +XXX,XX @@ static void handle_fp_compare(DisasContext *s, bool is_double,
 static void disas_fp_compare(DisasContext *s, uint32_t insn)
 {
     unsigned int mos, type, rm, op, rn, opc, op2r;
+    int size;
 
     mos = extract32(insn, 29, 3);
-    type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
+    type = extract32(insn, 22, 2);
     rm = extract32(insn, 16, 5);
     op = extract32(insn, 14, 2);
     rn = extract32(insn, 5, 5);
     opc = extract32(insn, 3, 2);
     op2r = extract32(insn, 0, 3);
 
-    if (mos || op || op2r || type > 1) {
+    if (mos || op || op2r) {
+        unallocated_encoding(s);
+        return;
+    }
+
+    switch (type) {
+    case 0:
+        size = MO_32;
+        break;
+    case 1:
+        size = MO_64;
+        break;
+    case 3:
+        size = MO_16;
+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            break;
+        }
+        /* fallthru */
+    default:
         unallocated_encoding(s);
         return;
     }
@@ -XXX,XX +XXX,XX @@ static void disas_fp_compare(DisasContext *s, uint32_t insn)
         return;
     }
 
-    handle_fp_compare(s, type, rn, rm, opc & 1, opc & 2);
+    handle_fp_compare(s, size, rn, rm, opc & 1, opc & 2);
 }
 
 /* Floating point conditional compare
@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
     unsigned int mos, type, rm, cond, rn, op, nzcv;
     TCGv_i64 tcg_flags;
     TCGLabel *label_continue = NULL;
+    int size;
 
     mos = extract32(insn, 29, 3);
-    type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
+    type = extract32(insn, 22, 2);
     rm = extract32(insn, 16, 5);
     cond = extract32(insn, 12, 4);
     rn = extract32(insn, 5, 5);
     op = extract32(insn, 4, 1);
     nzcv = extract32(insn, 0, 4);
 
-    if (mos || type > 1) {
+    if (mos) {
+        unallocated_encoding(s);
+        return;
+    }
+
+    switch (type) {
+    case 0:
+        size = MO_32;
+        break;
+    case 1:
+        size = MO_64;
+        break;
+    case 3:
+        size = MO_16;
+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            break;
+        }
+        /* fallthru */
+    default:
         unallocated_encoding(s);
         return;
     }
@@ -XXX,XX +XXX,XX @@ static void disas_fp_ccomp(DisasContext *s, uint32_t insn)
         gen_set_label(label_match);
     }
 
-    handle_fp_compare(s, type, rn, rm, false, op);
+    handle_fp_compare(s, size, rn, rm, false, op);
 
     if (cond < 0x0e) {
         gen_set_label(label_continue);
-- 
2.17.0

From: Alex Bennée <alex.bennee@linaro.org>

These were missed out from the rest of the half-precision work.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180512003217.9105-10-richard.henderson@linaro.org
[rth: Fix erroneous check vs type]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
     unsigned int mos, type, rm, cond, rn, rd;
     TCGv_i64 t_true, t_false, t_zero;
     DisasCompare64 c;
+    TCGMemOp sz;
 
     mos = extract32(insn, 29, 3);
-    type = extract32(insn, 22, 2); /* 0 = single, 1 = double */
+    type = extract32(insn, 22, 2);
     rm = extract32(insn, 16, 5);
     cond = extract32(insn, 12, 4);
     rn = extract32(insn, 5, 5);
     rd = extract32(insn, 0, 5);
 
-    if (mos || type > 1) {
+    if (mos) {
+        unallocated_encoding(s);
+        return;
+    }
+
+    switch (type) {
+    case 0:
+        sz = MO_32;
+        break;
+    case 1:
+        sz = MO_64;
+        break;
+    case 3:
+        sz = MO_16;
+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            break;
+        }
+        /* fallthru */
+    default:
         unallocated_encoding(s);
         return;
     }
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
         return;
     }
 
-    /* Zero extend sreg inputs to 64 bits now.  */
+    /* Zero extend sreg & hreg inputs to 64 bits now.  */
     t_true = tcg_temp_new_i64();
     t_false = tcg_temp_new_i64();
-    read_vec_element(s, t_true, rn, 0, type ? MO_64 : MO_32);
-    read_vec_element(s, t_false, rm, 0, type ? MO_64 : MO_32);
+    read_vec_element(s, t_true, rn, 0, sz);
+    read_vec_element(s, t_false, rm, 0, sz);
 
     a64_test_cc(&c, cond);
     t_zero = tcg_const_i64(0);
@@ -XXX,XX +XXX,XX @@ static void disas_fp_csel(DisasContext *s, uint32_t insn)
     tcg_temp_free_i64(t_false);
     a64_free_cc(&c);
 
-    /* Note that sregs write back zeros to the high bits,
+    /* Note that sregs & hregs write back zeros to the high bits,
        and we've already done the zero-extension.  */
     write_fp_dreg(s, rd, t_true);
     tcg_temp_free_i64(t_true);
-- 
2.17.0

From: Alex Bennée <alex.bennee@linaro.org>

All the hard work is already done by vfp_expand_imm, we just need to
make sure we pick up the correct size.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180512003217.9105-11-richard.henderson@linaro.org
[rth: Merge unallocated_encoding check with TCGMemOp conversion.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
 {
     int rd = extract32(insn, 0, 5);
     int imm8 = extract32(insn, 13, 8);
-    int is_double = extract32(insn, 22, 2);
+    int type = extract32(insn, 22, 2);
     uint64_t imm;
     TCGv_i64 tcg_res;
+    TCGMemOp sz;
 
-    if (is_double > 1) {
+    switch (type) {
+    case 0:
+        sz = MO_32;
+        break;
+    case 1:
+        sz = MO_64;
+        break;
+    case 3:
+        sz = MO_16;
+        if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) {
+            break;
+        }
+        /* fallthru */
+    default:
         unallocated_encoding(s);
         return;
     }
@@ -XXX,XX +XXX,XX @@ static void disas_fp_imm(DisasContext *s, uint32_t insn)
         return;
     }
 
-    imm = vfp_expand_imm(MO_32 + is_double, imm8);
+    imm = vfp_expand_imm(sz, imm8);
 
     tcg_res = tcg_const_i64(imm);
     write_fp_dreg(s, rd, tcg_res);
-- 
2.17.0

From: Alex Bennée <alex.bennee@linaro.org>

We are meant to explicitly pass fpst, not cpu_env.

Cc: qemu-stable@nongnu.org
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -XXX,XX +XXX,XX @@ static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int rn)
         tcg_gen_xori_i32(tcg_res, tcg_op, 0x8000);
         break;
     case 0x3: /* FSQRT */
-        gen_helper_sqrt_f16(tcg_res, tcg_op, cpu_env);
+        fpst = get_fpstatus_ptr(true);
+        gen_helper_sqrt_f16(tcg_res, tcg_op, fpst);
         break;
     case 0x8: /* FRINTN */
     case 0x9: /* FRINTP */
-- 
2.17.0

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

Per the Physical Layer Simplified Spec. "4.3.10.4 Switch Function Status":

The block length is predefined to 512 bits

and "4.10.2 SD Status":

The SD Status contains status bits that are related to the SD Memory Card
  proprietary features and may be used for future application-specific usage.
  The size of the SD Status is one data block of 512 bit. The content of this
  register is transmitted to the Host over the DAT bus along with a 16-bit CRC.

Thus the 16-bit CRC goes at offset 64.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180509060104.4458-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/sd/sd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -XXX,XX +XXX,XX @@ static void sd_function_switch(SDState *sd, uint32_t arg)
         sd->data[14 + (i >> 1)] = new_func << ((i * 4) & 4);
     }
     memset(&sd->data[17], 0, 47);
-    stw_be_p(sd->data + 65, sd_crc16(sd->data, 64));
+    stw_be_p(sd->data + 64, sd_crc16(sd->data, 64));
 }
 
 static inline bool sd_wp_addr(SDState *sd, uint64_t addr)
-- 
2.17.0

Usually the logging of the CPU state produced by -d cpu is sufficient
to diagnose problems, but sometimes you want to see the state of
the floating point registers as well. We don't want to enable that
by default as it adds a lot of extra data to the log; instead,
allow it to be optionally enabled via -d fpu.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180510130024.31678-1-peter.maydell@linaro.org
---
 include/qemu/log.h   | 1 +
 accel/tcg/cpu-exec.c | 9 ++++++---
 util/log.c           | 2 ++
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/qemu/log.h b/include/qemu/log.h
index XXXXXXX..XXXXXXX 100644
--- a/include/qemu/log.h
+++ b/include/qemu/log.h
@@ -XXX,XX +XXX,XX @@ static inline bool qemu_log_separate(void)
 #define CPU_LOG_PAGE       (1 << 14)
 /* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
 #define CPU_LOG_TB_OP_IND  (1 << 16)
+#define CPU_LOG_TB_FPU     (1 << 17)
 
 /* Lock output for a series of related logs.  Since this is not needed
  * for a single qemu_log / qemu_log_mask / qemu_log_mask_and_addr, we
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index XXXXXXX..XXXXXXX 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -XXX,XX +XXX,XX @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb)
     if (qemu_loglevel_mask(CPU_LOG_TB_CPU)
         && qemu_log_in_addr_range(itb->pc)) {
         qemu_log_lock();
+        int flags = 0;
+        if (qemu_loglevel_mask(CPU_LOG_TB_FPU)) {
+            flags |= CPU_DUMP_FPU;
+        }
 #if defined(TARGET_I386)
-        log_cpu_state(cpu, CPU_DUMP_CCOP);
-#else
-        log_cpu_state(cpu, 0);
+        flags |= CPU_DUMP_CCOP;
 #endif
+        log_cpu_state(cpu, flags);
         qemu_log_unlock();
     }
 #endif /* DEBUG_DISAS */
diff --git a/util/log.c b/util/log.c
index XXXXXXX..XXXXXXX 100644
--- a/util/log.c
+++ b/util/log.c
@@ -XXX,XX +XXX,XX @@ const QEMULogItem qemu_log_items[] = {
       "show trace before each executed TB (lots of logs)" },
     { CPU_LOG_TB_CPU, "cpu",
       "show CPU registers before entering a TB (lots of logs)" },
+    { CPU_LOG_TB_FPU, "fpu",
+      "include FPU registers in the 'cpu' logging" },
     { CPU_LOG_MMU, "mmu",
       "log MMU-related activities" },
     { CPU_LOG_PCALL, "pcall",
-- 
2.17.0

arm queue; dunno if this will be the last before softfreeze
or not, but anyway probably the last large one. New orangepi-pc
board model is the big item here.

thanks
-- PMM

The following changes since commit 67d9ef7d541c3d21a25796c51c26da096a433565:

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-docs-20200312' into staging (2020-03-12 15:20:52 +0000)

are available in the Git repository at:

https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20200312

for you to fetch changes up to aca53be34ac3e7cac5f39396a51a338860a5a837:

target/arm: kvm: Inject events at the last stage of sync (2020-03-12 16:31:10 +0000)

----------------------------------------------------------------
target-arm queue:
 * Fix various bugs that might result in an assert() due to
   incorrect hflags for M-profile CPUs
 * Fix Aspeed SMC Controller user-mode select handling
 * Report correct (with-tag) address in fault address register
   when TBI is enabled
 * cubieboard: make sure SOC object isn't leaked
 * fsl-imx25: Wire up eSDHC controllers
 * fsl-imx25: Wire up USB controllers
 * New board model: orangepi-pc (OrangePi PC)
 * ARM/KVM: if user doesn't select GIC version and the
   host kernel can only provide GICv3, use that, rather
   than defaulting to "fail because GICv2 isn't possible"
 * kvm: Only do KVM_SET_VCPU_EVENTS at the last stage of sync

----------------------------------------------------------------
Beata Michalska (1):
      target/arm: kvm: Inject events at the last stage of sync

Cédric Le Goater (2):
      aspeed/smc: Add some tracing
      aspeed/smc: Fix User mode select/unselect scheme

Eric Auger (6):
      hw/arm/virt: Document 'max' value in gic-version property description
      hw/arm/virt: Introduce VirtGICType enum type
      hw/arm/virt: Introduce finalize_gic_version()
      target/arm/kvm: Let kvm_arm_vgic_probe() return a bitmap
      hw/arm/virt: kvm: Restructure finalize_gic_version()
      hw/arm/virt: kvm: allow gicv3 by default if v2 cannot work

Guenter Roeck (2):
      hw/arm/fsl-imx25: Wire up eSDHC controllers
      hw/arm/fsl-imx25: Wire up USB controllers

Igor Mammedov (1):
      hw/arm/cubieboard: make sure SOC object isn't leaked

Niek Linnenbank (13):
      hw/arm: add Allwinner H3 System-on-Chip
      hw/arm: add Xunlong Orange Pi PC machine
      hw/arm/allwinner-h3: add Clock Control Unit
      hw/arm/allwinner-h3: add USB host controller
      hw/arm/allwinner-h3: add System Control module
      hw/arm/allwinner: add CPU Configuration module
      hw/arm/allwinner: add Security Identifier device
      hw/arm/allwinner: add SD/MMC host controller
      hw/arm/allwinner-h3: add EMAC ethernet device
      hw/arm/allwinner-h3: add Boot ROM support
      hw/arm/allwinner-h3: add SDRAM controller device
      hw/arm/allwinner: add RTC device support
      docs: add Orange Pi PC document

Peter Maydell (4):
      hw/intc/armv7m_nvic: Rebuild hflags on reset
      target/arm: Update hflags in trans_CPS_v7m()
      target/arm: Recalculate hflags correctly after writes to CONTROL
      target/arm: Fix some comment typos

Philippe Mathieu-Daudé (5):
      tests/boot_linux_console: Add a quick test for the OrangePi PC board
      tests/boot_linux_console: Add initrd test for the Orange Pi PC board
      tests/boot_linux_console: Add a SD card test for the OrangePi PC board
      tests/boot_linux_console: Add a SLOW test booting Ubuntu on OrangePi PC
      tests/boot_linux_console: Test booting NetBSD via U-Boot on OrangePi PC

Richard Henderson (2):
      target/arm: Check addresses for disabled regimes
      target/arm: Disable clean_data_tbi for system mode

Makefile.objs                          |   1 +
 hw/arm/Makefile.objs                   |   1 +
 hw/misc/Makefile.objs                  |   5 +
 hw/net/Makefile.objs                   |   1 +
 hw/rtc/Makefile.objs                   |   1 +
 hw/sd/Makefile.objs                    |   1 +
 hw/usb/hcd-ehci.h                      |   1 +
 include/hw/arm/allwinner-a10.h         |   4 +
 include/hw/arm/allwinner-h3.h          | 161 ++++++
 include/hw/arm/fsl-imx25.h             |  18 +
 include/hw/arm/virt.h                  |  12 +-
 include/hw/misc/allwinner-cpucfg.h     |  52 ++
 include/hw/misc/allwinner-h3-ccu.h     |  66 +++
 include/hw/misc/allwinner-h3-dramc.h   | 106 ++++
 include/hw/misc/allwinner-h3-sysctrl.h |  67 +++
 include/hw/misc/allwinner-sid.h        |  60 +++
 include/hw/net/allwinner-sun8i-emac.h  |  99 ++++
 include/hw/rtc/allwinner-rtc.h         | 134 +++++
 include/hw/sd/allwinner-sdhost.h       | 135 +++++
 target/arm/helper.h                    |   1 +
 target/arm/kvm_arm.h                   |   3 +
 hw/arm/allwinner-a10.c                 |  19 +
 hw/arm/allwinner-h3.c                  | 465 ++++++++++++++++++
 hw/arm/cubieboard.c                    |  18 +
 hw/arm/fsl-imx25.c                     |  56 +++
 hw/arm/imx25_pdk.c                     |  16 +
 hw/arm/orangepi.c                      | 130 +++++
 hw/arm/virt.c                          | 145 ++++--
 hw/intc/armv7m_nvic.c                  |   6 +
 hw/misc/allwinner-cpucfg.c             | 282 +++++++++++
 hw/misc/allwinner-h3-ccu.c             | 242 +++++++++
 hw/misc/allwinner-h3-dramc.c           | 358 ++++++++++++++
 hw/misc/allwinner-h3-sysctrl.c         | 140 ++++++
 hw/misc/allwinner-sid.c                | 168 +++++++
 hw/net/allwinner-sun8i-emac.c          | 871 +++++++++++++++++++++++++++++++++
 hw/rtc/allwinner-rtc.c                 | 411 ++++++++++++++++
 hw/sd/allwinner-sdhost.c               | 854 ++++++++++++++++++++++++++++++++
 hw/ssi/aspeed_smc.c                    |  56 ++-
 hw/usb/hcd-ehci-sysbus.c               |  17 +
 target/arm/helper.c                    |  49 +-
 target/arm/kvm.c                       |  14 +-
 target/arm/kvm32.c                     |  15 +-
 target/arm/kvm64.c                     |  15 +-
 target/arm/translate-a64.c             |  11 +
 target/arm/translate.c                 |  14 +-
 MAINTAINERS                            |   9 +
 default-configs/arm-softmmu.mak        |   1 +
 docs/system/arm/orangepi.rst           | 253 ++++++++++
 docs/system/target-arm.rst             |   2 +
 hw/arm/Kconfig                         |  12 +
 hw/misc/trace-events                   |  19 +
 hw/net/Kconfig                         |   3 +
 hw/net/trace-events                    |  10 +
 hw/rtc/trace-events                    |   4 +
 hw/sd/trace-events                     |   7 +
 hw/ssi/trace-events                    |  10 +
 tests/acceptance/boot_linux_console.py | 230 +++++++++
 57 files changed, 5787 insertions(+), 74 deletions(-)
 create mode 100644 include/hw/arm/allwinner-h3.h
 create mode 100644 include/hw/misc/allwinner-cpucfg.h
 create mode 100644 include/hw/misc/allwinner-h3-ccu.h
 create mode 100644 include/hw/misc/allwinner-h3-dramc.h
 create mode 100644 include/hw/misc/allwinner-h3-sysctrl.h
 create mode 100644 include/hw/misc/allwinner-sid.h
 create mode 100644 include/hw/net/allwinner-sun8i-emac.h
 create mode 100644 include/hw/rtc/allwinner-rtc.h
 create mode 100644 include/hw/sd/allwinner-sdhost.h
 create mode 100644 hw/arm/allwinner-h3.c
 create mode 100644 hw/arm/orangepi.c
 create mode 100644 hw/misc/allwinner-cpucfg.c
 create mode 100644 hw/misc/allwinner-h3-ccu.c
 create mode 100644 hw/misc/allwinner-h3-dramc.c
 create mode 100644 hw/misc/allwinner-h3-sysctrl.c
 create mode 100644 hw/misc/allwinner-sid.c
 create mode 100644 hw/net/allwinner-sun8i-emac.c
 create mode 100644 hw/rtc/allwinner-rtc.c
 create mode 100644 hw/sd/allwinner-sdhost.c
 create mode 100644 docs/system/arm/orangepi.rst
 create mode 100644 hw/ssi/trace-events

Some of an M-profile CPU's cached hflags state depends on state that's
in our NVIC object. We already do an hflags rebuild when the NVIC
registers are written, but we also need to do this on NVIC reset,
because there's no guarantee that this will happen before the
CPU reset.

This fixes an assertion due to mismatched hflags which happens if
the CPU is reset from inside a HardFault handler.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200303174950.3298-2-peter.maydell@linaro.org
---
 hw/intc/armv7m_nvic.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -XXX,XX +XXX,XX @@ static void armv7m_nvic_reset(DeviceState *dev)
             s->itns[i] = true;
         }
     }
+
+    /*
+     * We updated state that affects the CPU's MMUidx and thus its hflags;
+     * and we can't guarantee that we run before the CPU reset function.
+     */
+    arm_rebuild_hflags(&s->cpu->env);
 }
 
 static void nvic_systick_trigger(void *opaque, int n, int level)
-- 
2.20.1

For M-profile CPUs, the FAULTMASK value affects the CPU's MMU index
(it changes the NegPri bit). We update the hflags after calls
to the v7m_msr helper in trans_MSR_v7m() but forgot to do so
in trans_CPS_v7m().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200303174950.3298-3-peter.maydell@linaro.org
---
 target/arm/translate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/arm/translate.c b/target/arm/translate.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -XXX,XX +XXX,XX @@ static bool trans_CPS(DisasContext *s, arg_CPS *a)
 
 static bool trans_CPS_v7m(DisasContext *s, arg_CPS_v7m *a)
 {
-    TCGv_i32 tmp, addr;
+    TCGv_i32 tmp, addr, el;
 
     if (!arm_dc_feature(s, ARM_FEATURE_M)) {
         return false;
@@ -XXX,XX +XXX,XX @@ static bool trans_CPS_v7m(DisasContext *s, arg_CPS_v7m *a)
         gen_helper_v7m_msr(cpu_env, addr, tmp);
         tcg_temp_free_i32(addr);
     }
+    el = tcg_const_i32(s->current_el);
+    gen_helper_rebuild_hflags_m32(cpu_env, el);
+    tcg_temp_free_i32(el);
     tcg_temp_free_i32(tmp);
     gen_lookup_tb(s);
     return true;
-- 
2.20.1

A write to the CONTROL register can change our current EL (by
writing to the nPRIV bit). That means that we can't assume
that s->current_el is still valid in trans_MSR_v7m() when
we try to rebuild the hflags.

Add a new helper rebuild_hflags_m32_newel() which, like the
existing rebuild_hflags_a32_newel(), recalculates the current
EL from scratch, and use it in trans_MSR_v7m().

This fixes an assertion about an hflags mismatch when the
guest changes privilege by writing to CONTROL.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200303174950.3298-4-peter.maydell@linaro.org
---
 target/arm/helper.h    |  1 +
 target/arm/helper.c    | 12 ++++++++++++
 target/arm/translate.c |  7 +++----
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/target/arm/helper.h b/target/arm/helper.h
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_4(msr_banked, void, env, i32, i32, i32)
 DEF_HELPER_2(get_user_reg, i32, env, i32)
 DEF_HELPER_3(set_user_reg, void, env, i32, i32)
 
+DEF_HELPER_FLAGS_1(rebuild_hflags_m32_newel, TCG_CALL_NO_RWG, void, env)
 DEF_HELPER_FLAGS_2(rebuild_hflags_m32, TCG_CALL_NO_RWG, void, env, int)
 DEF_HELPER_FLAGS_1(rebuild_hflags_a32_newel, TCG_CALL_NO_RWG, void, env)
 DEF_HELPER_FLAGS_2(rebuild_hflags_a32, TCG_CALL_NO_RWG, void, env, int)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -XXX,XX +XXX,XX @@ void arm_rebuild_hflags(CPUARMState *env)
     env->hflags = rebuild_hflags_internal(env);
 }
 
+/*
+ * If we have triggered a EL state change we can't rely on the
+ * translator having passed it to us, we need to recompute.
+ */
+void HELPER(rebuild_hflags_m32_newel)(CPUARMState *env)
+{
+    int el = arm_current_el(env);
+    int fp_el = fp_exception_el(env, el);
+    ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el);
+    env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx);
+}
+
 void HELPER(rebuild_hflags_m32)(CPUARMState *env, int el)
 {
     int fp_el = fp_exception_el(env, el);
diff --git a/target/arm/translate.c b/target/arm/translate.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -XXX,XX +XXX,XX @@ static bool trans_MRS_v7m(DisasContext *s, arg_MRS_v7m *a)
 
 static bool trans_MSR_v7m(DisasContext *s, arg_MSR_v7m *a)
 {
-    TCGv_i32 addr, reg, el;
+    TCGv_i32 addr, reg;
 
     if (!arm_dc_feature(s, ARM_FEATURE_M)) {
         return false;
@@ -XXX,XX +XXX,XX @@ static bool trans_MSR_v7m(DisasContext *s, arg_MSR_v7m *a)
     gen_helper_v7m_msr(cpu_env, addr, reg);
     tcg_temp_free_i32(addr);
     tcg_temp_free_i32(reg);
-    el = tcg_const_i32(s->current_el);
-    gen_helper_rebuild_hflags_m32(cpu_env, el);
-    tcg_temp_free_i32(el);
+    /* If we wrote to CONTROL, the EL might have changed */
+    gen_helper_rebuild_hflags_m32_newel(cpu_env);
     gen_lookup_tb(s);
     return true;
 }
-- 
2.20.1

Fix a couple of comment typos.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200303174950.3298-5-peter.maydell@linaro.org
---
 target/arm/helper.c    | 2 +-
 target/arm/translate.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -XXX,XX +XXX,XX @@ void HELPER(rebuild_hflags_m32)(CPUARMState *env, int el)
 
 /*
  * If we have triggered a EL state change we can't rely on the
- * translator having passed it too us, we need to recompute.
+ * translator having passed it to us, we need to recompute.
  */
 void HELPER(rebuild_hflags_a32_newel)(CPUARMState *env)
 {
diff --git a/target/arm/translate.c b/target/arm/translate.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -XXX,XX +XXX,XX @@ static int disas_coproc_insn(DisasContext *s, uint32_t insn)
 
         if (!isread && !(ri->type & ARM_CP_SUPPRESS_TB_END)) {
             /*
-             * A write to any coprocessor regiser that ends a TB
+             * A write to any coprocessor register that ends a TB
              * must rebuild the hflags for the next TB.
              */
             TCGv_i32 tcg_el = tcg_const_i32(s->current_el);
-- 
2.20.1

From: Cédric Le Goater <clg@kaod.org>

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200206112645.21275-2-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 Makefile.objs       |  1 +
 hw/ssi/aspeed_smc.c | 17 +++++++++++++++++
 hw/ssi/trace-events |  9 +++++++++
 3 files changed, 27 insertions(+)
 create mode 100644 hw/ssi/trace-events

diff --git a/Makefile.objs b/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -XXX,XX +XXX,XX @@ trace-events-subdirs += hw/scsi
 trace-events-subdirs += hw/sd
 trace-events-subdirs += hw/sparc
 trace-events-subdirs += hw/sparc64
+trace-events-subdirs += hw/ssi
 trace-events-subdirs += hw/timer
 trace-events-subdirs += hw/tpm
 trace-events-subdirs += hw/usb
diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -XXX,XX +XXX,XX @@
 #include "qapi/error.h"
 #include "exec/address-spaces.h"
 #include "qemu/units.h"
+#include "trace.h"
 
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_flash_set_segment(AspeedSMCState *s, int cs,
 
     s->ctrl->reg_to_segment(s, new, &seg);
 
+    trace_aspeed_smc_flash_set_segment(cs, new, seg.addr, seg.addr + seg.size);
+
     /* The start address of CS0 is read-only */
     if (cs == 0 && seg.addr != s->ctrl->flash_window_base) {
         qemu_log_mask(LOG_GUEST_ERROR,
@@ -XXX,XX +XXX,XX @@ static uint64_t aspeed_smc_flash_read(void *opaque, hwaddr addr, unsigned size)
                       __func__, aspeed_smc_flash_mode(fl));
     }
 
+    trace_aspeed_smc_flash_read(fl->id, addr, size, ret,
+                                aspeed_smc_flash_mode(fl));
     return ret;
 }
 
@@ -XXX,XX +XXX,XX @@ static bool aspeed_smc_do_snoop(AspeedSMCFlash *fl,  uint64_t data,
     AspeedSMCState *s = fl->controller;
     uint8_t addr_width = aspeed_smc_flash_is_4byte(fl) ? 4 : 3;
 
+    trace_aspeed_smc_do_snoop(fl->id, s->snoop_index, s->snoop_dummies,
+                              (uint8_t) data & 0xff);
+
     if (s->snoop_index == SNOOP_OFF) {
         return false; /* Do nothing */
 
@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_flash_write(void *opaque, hwaddr addr, uint64_t data,
     AspeedSMCState *s = fl->controller;
     int i;
 
+    trace_aspeed_smc_flash_write(fl->id, addr, size, data,
+                                 aspeed_smc_flash_mode(fl));
+
     if (!aspeed_smc_is_writable(fl)) {
         qemu_log_mask(LOG_GUEST_ERROR, "%s: flash is not writable at 0x%"
                       HWADDR_PRIx "\n", __func__, addr);
@@ -XXX,XX +XXX,XX @@ static uint64_t aspeed_smc_read(void *opaque, hwaddr addr, unsigned int size)
         (s->ctrl->has_dma && addr == R_DMA_CHECKSUM) ||
         (addr >= R_SEG_ADDR0 && addr < R_SEG_ADDR0 + s->ctrl->max_slaves) ||
         (addr >= s->r_ctrl0 && addr < s->r_ctrl0 + s->ctrl->max_slaves)) {
+
+        trace_aspeed_smc_read(addr, size, s->regs[addr]);
+
         return s->regs[addr];
     } else {
         qemu_log_mask(LOG_UNIMP, "%s: not implemented: 0x%" HWADDR_PRIx "\n",
@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_dma_checksum(AspeedSMCState *s)
                           __func__, s->regs[R_DMA_FLASH_ADDR]);
             return;
         }
+        trace_aspeed_smc_dma_checksum(s->regs[R_DMA_FLASH_ADDR], data);
 
         /*
          * When the DMA is on-going, the DMA registers are updated
@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data,
 
     addr >>= 2;
 
+    trace_aspeed_smc_write(addr, size, data);
+
     if (addr == s->r_conf ||
         (addr >= s->r_timings &&
          addr < s->r_timings + s->ctrl->nregs_timings) ||
diff --git a/hw/ssi/trace-events b/hw/ssi/trace-events
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/ssi/trace-events
@@ -XXX,XX +XXX,XX @@
+# aspeed_smc.c
+
+aspeed_smc_flash_set_segment(int cs, uint64_t reg, uint64_t start, uint64_t end) "CS%d segreg=0x%"PRIx64" [ 0x%"PRIx64" - 0x%"PRIx64" ]"
+aspeed_smc_flash_read(int cs, uint64_t addr,  uint32_t size, uint64_t data, int mode) "CS%d @0x%" PRIx64 " size %u: 0x%" PRIx64" mode:%d"
+aspeed_smc_do_snoop(int cs, int index, int dummies, int data) "CS%d index:0x%x dummies:%d data:0x%x"
+aspeed_smc_flash_write(int cs, uint64_t addr,  uint32_t size, uint64_t data, int mode) "CS%d @0x%" PRIx64 " size %u: 0x%" PRIx64" mode:%d"
+aspeed_smc_read(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
+aspeed_smc_dma_checksum(uint32_t addr, uint32_t data) "0x%08x: 0x%08x"
+aspeed_smc_write(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
-- 
2.20.1

From: Cédric Le Goater <clg@kaod.org>

The Aspeed SMC Controller can operate in different modes : Read, Fast
Read, Write and User modes. When the User mode is configured, it
selects automatically the SPI slave device until the CE_STOP_ACTIVE
bit is set to 1. When any other modes are configured the device is
unselected. The HW logic handles the chip select automatically when
the flash is accessed through its AHB window.

When configuring the CEx Control Register, the User mode logic to
select and unselect the slave is incorrect and data corruption can be
seen on machines using two chips, witherspoon and romulus.

Rework the handler setting the CEx Control Register to fix this issue.

Fixes: 7c1c69bca43c ("ast2400: add SMC controllers (FMC and SPI)")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 20200206112645.21275-3-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/ssi/aspeed_smc.c | 39 +++++++++++++++++++++++----------------
 hw/ssi/trace-events |  1 +
 2 files changed, 24 insertions(+), 16 deletions(-)

diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -XXX,XX +XXX,XX @@ static inline int aspeed_smc_flash_is_4byte(const AspeedSMCFlash *fl)
     }
 }
 
-static inline bool aspeed_smc_is_ce_stop_active(const AspeedSMCFlash *fl)
+static void aspeed_smc_flash_do_select(AspeedSMCFlash *fl, bool unselect)
 {
-    const AspeedSMCState *s = fl->controller;
+    AspeedSMCState *s = fl->controller;
 
-    return s->regs[s->r_ctrl0 + fl->id] & CTRL_CE_STOP_ACTIVE;
+    trace_aspeed_smc_flash_select(fl->id, unselect ? "un" : "");
+
+    qemu_set_irq(s->cs_lines[fl->id], unselect);
 }
 
 static void aspeed_smc_flash_select(AspeedSMCFlash *fl)
 {
-    AspeedSMCState *s = fl->controller;
-
-    s->regs[s->r_ctrl0 + fl->id] &= ~CTRL_CE_STOP_ACTIVE;
-    qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl));
+    aspeed_smc_flash_do_select(fl, false);
 }
 
 static void aspeed_smc_flash_unselect(AspeedSMCFlash *fl)
 {
-    AspeedSMCState *s = fl->controller;
-
-    s->regs[s->r_ctrl0 + fl->id] |= CTRL_CE_STOP_ACTIVE;
-    qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl));
+    aspeed_smc_flash_do_select(fl, true);
 }
 
 static uint32_t aspeed_smc_check_segment_addr(const AspeedSMCFlash *fl,
@@ -XXX,XX +XXX,XX @@ static const MemoryRegionOps aspeed_smc_flash_ops = {
     },
 };
 
-static void aspeed_smc_flash_update_cs(AspeedSMCFlash *fl)
+static void aspeed_smc_flash_update_ctrl(AspeedSMCFlash *fl, uint32_t value)
 {
     AspeedSMCState *s = fl->controller;
+    bool unselect;
 
-    s->snoop_index = aspeed_smc_is_ce_stop_active(fl) ? SNOOP_OFF : SNOOP_START;
+    /* User mode selects the CS, other modes unselect */
+    unselect = (value & CTRL_CMD_MODE_MASK) != CTRL_USERMODE;
 
-    qemu_set_irq(s->cs_lines[fl->id], aspeed_smc_is_ce_stop_active(fl));
+    /* A change of CTRL_CE_STOP_ACTIVE from 0 to 1, unselects the CS */
+    if (!(s->regs[s->r_ctrl0 + fl->id] & CTRL_CE_STOP_ACTIVE) &&
+        value & CTRL_CE_STOP_ACTIVE) {
+        unselect = true;
+    }
+
+    s->regs[s->r_ctrl0 + fl->id] = value;
+
+    s->snoop_index = unselect ? SNOOP_OFF : SNOOP_START;
+
+    aspeed_smc_flash_do_select(fl, unselect);
 }
 
 static void aspeed_smc_reset(DeviceState *d)
@@ -XXX,XX +XXX,XX @@ static void aspeed_smc_write(void *opaque, hwaddr addr, uint64_t data,
         s->regs[addr] = value;
     } else if (addr >= s->r_ctrl0 && addr < s->r_ctrl0 + s->num_cs) {
         int cs = addr - s->r_ctrl0;
-        s->regs[addr] = value;
-        aspeed_smc_flash_update_cs(&s->flashes[cs]);
+        aspeed_smc_flash_update_ctrl(&s->flashes[cs], value);
     } else if (addr >= R_SEG_ADDR0 &&
                addr < R_SEG_ADDR0 + s->ctrl->max_slaves) {
         int cs = addr - R_SEG_ADDR0;
diff --git a/hw/ssi/trace-events b/hw/ssi/trace-events
index XXXXXXX..XXXXXXX 100644
--- a/hw/ssi/trace-events
+++ b/hw/ssi/trace-events
@@ -XXX,XX +XXX,XX @@ aspeed_smc_flash_write(int cs, uint64_t addr,  uint32_t size, uint64_t data, int
 aspeed_smc_read(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
 aspeed_smc_dma_checksum(uint32_t addr, uint32_t data) "0x%08x: 0x%08x"
 aspeed_smc_write(uint64_t addr,  uint32_t size, uint64_t data) "@0x%" PRIx64 " size %u: 0x%" PRIx64
+aspeed_smc_flash_select(int cs, const char *prefix) "CS%d %sselect"
-- 
2.20.1

From: Richard Henderson <richard.henderson@linaro.org>

We fail to validate the upper bits of a virtual address on a
translation disabled regime, as per AArch64.TranslateAddressS1Off.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200308012946.16303-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/helper.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -XXX,XX +XXX,XX @@ bool get_phys_addr(CPUARMState *env, target_ulong address,
     /* Definitely a real MMU, not an MPU */
 
     if (regime_translation_disabled(env, mmu_idx)) {
-        /* MMU disabled. */
+        /*
+         * MMU disabled.  S1 addresses within aa64 translation regimes are
+         * still checked for bounds -- see AArch64.TranslateAddressS1Off.
+         */
+        if (mmu_idx != ARMMMUIdx_Stage2) {
+            int r_el = regime_el(env, mmu_idx);
+            if (arm_el_is_aa64(env, r_el)) {
+                int pamax = arm_pamax(env_archcpu(env));
+                uint64_t tcr = env->cp15.tcr_el[r_el].raw_tcr;
+                int addrtop, tbi;
+
+                tbi = aa64_va_parameter_tbi(tcr, mmu_idx);
+                if (access_type == MMU_INST_FETCH) {
+                    tbi &= ~aa64_va_parameter_tbid(tcr, mmu_idx);
+                }
+                tbi = (tbi >> extract64(address, 55, 1)) & 1;
+                addrtop = (tbi ? 55 : 63);
+
+                if (extract64(address, pamax, addrtop - pamax + 1) != 0) {
+                    fi->type = ARMFault_AddressSize;
+                    fi->level = 0;
+                    fi->stage2 = false;
+                    return 1;
+                }
+
+                /*
+                 * When TBI is disabled, we've just validated that all of the
+                 * bits above PAMax are zero, so logically we only need to
+                 * clear the top byte for TBI.  But it's clearer to follow
+                 * the pseudocode set of addrdesc.paddress.
+                 */
+                address = extract64(address, 0, 52);
+            }
+        }
         *phys_ptr = address;
         *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
         *page_size = TARGET_PAGE_SIZE;
-- 
2.20.1

From: Richard Henderson <richard.henderson@linaro.org>

We must include the tag in the FAR_ELx register when raising
an addressing exception.  Which means that we should not clear
out the tag during translation.

We cannot at present comply with this for user mode, so we
retain the clean_data_tbi function for the moment, though it
no longer does what it says on the tin for system mode.  This
function is to be replaced with MTE, so don't worry about the
slight misnaming.

Buglink: https://bugs.launchpad.net/qemu/+bug/1867072
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200308012946.16303-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate-a64.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

From: Igor Mammedov <imammedo@redhat.com>

SOC object returned by object_new() is leaked in current code.
Set SOC parent explicitly to board and then unref to SOC object
to make sure that refererence returned by object_new() is taken
care of.

The SOC object will be kept alive by its parent (machine) and
will be automatically freed when MachineState is destroyed.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reported-by: Andrew Jones <drjones@redhat.com>
Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200303091254.22373-1-imammedo@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/cubieboard.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/cubieboard.c
+++ b/hw/arm/cubieboard.c
@@ -XXX,XX +XXX,XX @@ static void cubieboard_init(MachineState *machine)
     }
 
     a10 = AW_A10(object_new(TYPE_AW_A10));
+    object_property_add_child(OBJECT(machine), "soc", OBJECT(a10),
+                              &error_abort);
+    object_unref(OBJECT(a10));
 
     object_property_set_int(OBJECT(&a10->emac), 1, "phy-addr", &err);
     if (err != NULL) {
-- 
2.20.1

From: Guenter Roeck <linux@roeck-us.net>

Wire up eSDHC controllers in fsl-imx25. For imx25-pdk, connect drives
provided on the command line to available eSDHC controllers.

This patch enables booting the imx25-pdk emulation from SD card.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200310215146.19688-2-linux@roeck-us.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: made commit subject consistent with other patch]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/fsl-imx25.h |  9 +++++++++
 hw/arm/fsl-imx25.c         | 32 ++++++++++++++++++++++++++++++++
 hw/arm/imx25_pdk.c         | 16 ++++++++++++++++
 3 files changed, 57 insertions(+)

diff --git a/include/hw/arm/fsl-imx25.h b/include/hw/arm/fsl-imx25.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/fsl-imx25.h
+++ b/include/hw/arm/fsl-imx25.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/misc/imx_rngc.h"
 #include "hw/i2c/imx_i2c.h"
 #include "hw/gpio/imx_gpio.h"
+#include "hw/sd/sdhci.h"
 #include "exec/memory.h"
 #include "target/arm/cpu.h"
 
@@ -XXX,XX +XXX,XX @@
 #define FSL_IMX25_NUM_EPITS 2
 #define FSL_IMX25_NUM_I2CS 3
 #define FSL_IMX25_NUM_GPIOS 4
+#define FSL_IMX25_NUM_ESDHCS 2
 
 typedef struct FslIMX25State {
     /*< private >*/
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
     IMXRNGCState   rngc;
     IMXI2CState    i2c[FSL_IMX25_NUM_I2CS];
     IMXGPIOState   gpio[FSL_IMX25_NUM_GPIOS];
+    SDHCIState     esdhc[FSL_IMX25_NUM_ESDHCS];
     MemoryRegion   rom[2];
     MemoryRegion   iram;
     MemoryRegion   iram_alias;
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
 #define FSL_IMX25_GPIO3_SIZE    0x4000
 #define FSL_IMX25_RNGC_ADDR     0x53FB0000
 #define FSL_IMX25_RNGC_SIZE     0x4000
+#define FSL_IMX25_ESDHC1_ADDR   0x53FB4000
+#define FSL_IMX25_ESDHC1_SIZE   0x4000
+#define FSL_IMX25_ESDHC2_ADDR   0x53FB8000
+#define FSL_IMX25_ESDHC2_SIZE   0x4000
 #define FSL_IMX25_GPIO1_ADDR    0x53FCC000
 #define FSL_IMX25_GPIO1_SIZE    0x4000
 #define FSL_IMX25_GPIO2_ADDR    0x53FD0000
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX25State {
 #define FSL_IMX25_GPIO2_IRQ     51
 #define FSL_IMX25_GPIO3_IRQ     16
 #define FSL_IMX25_GPIO4_IRQ     23
+#define FSL_IMX25_ESDHC1_IRQ    9
+#define FSL_IMX25_ESDHC2_IRQ    8
 
 #endif /* FSL_IMX25_H */
diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/fsl-imx25.c
+++ b/hw/arm/fsl-imx25.c
@@ -XXX,XX +XXX,XX @@
 #include "hw/qdev-properties.h"
 #include "chardev/char.h"
 
+#define IMX25_ESDHC_CAPABILITIES     0x07e20000
+
 static void fsl_imx25_init(Object *obj)
 {
     FslIMX25State *s = FSL_IMX25(obj);
@@ -XXX,XX +XXX,XX @@ static void fsl_imx25_init(Object *obj)
         sysbus_init_child_obj(obj, "gpio[*]", &s->gpio[i], sizeof(s->gpio[i]),
                               TYPE_IMX_GPIO);
     }
+
+    for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
+        sysbus_init_child_obj(obj, "sdhc[*]", &s->esdhc[i], sizeof(s->esdhc[i]),
+                              TYPE_IMX_USDHC);
+    }
 }
 
 static void fsl_imx25_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
                                             gpio_table[i].irq));
     }
 
+    /* Initialize all SDHC */
+    for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
+        static const struct {
+            hwaddr addr;
+            unsigned int irq;
+        } esdhc_table[FSL_IMX25_NUM_ESDHCS] = {
+            { FSL_IMX25_ESDHC1_ADDR, FSL_IMX25_ESDHC1_IRQ },
+            { FSL_IMX25_ESDHC2_ADDR, FSL_IMX25_ESDHC2_IRQ },
+        };
+
+        object_property_set_uint(OBJECT(&s->esdhc[i]), 2, "sd-spec-version",
+                                 &err);
+        object_property_set_uint(OBJECT(&s->esdhc[i]), IMX25_ESDHC_CAPABILITIES,
+                                 "capareg", &err);
+        object_property_set_bool(OBJECT(&s->esdhc[i]), true, "realized", &err);
+        if (err) {
+            error_propagate(errp, err);
+            return;
+        }
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->esdhc[i]), 0, esdhc_table[i].addr);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->esdhc[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->avic),
+                                            esdhc_table[i].irq));
+    }
+
     /* initialize 2 x 16 KB ROM */
     memory_region_init_rom(&s->rom[0], NULL,
                            "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
diff --git a/hw/arm/imx25_pdk.c b/hw/arm/imx25_pdk.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/imx25_pdk.c
+++ b/hw/arm/imx25_pdk.c
@@ -XXX,XX +XXX,XX @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "cpu.h"
+#include "hw/qdev-properties.h"
 #include "hw/arm/fsl-imx25.h"
 #include "hw/boards.h"
 #include "qemu/error-report.h"
@@ -XXX,XX +XXX,XX @@ static void imx25_pdk_init(MachineState *machine)
     imx25_pdk_binfo.board_id = 1771,
     imx25_pdk_binfo.nb_cpus = 1;
 
+    for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
+        BusState *bus;
+        DeviceState *carddev;
+        DriveInfo *di;
+        BlockBackend *blk;
+
+        di = drive_get_next(IF_SD);
+        blk = di ? blk_by_legacy_dinfo(di) : NULL;
+        bus = qdev_get_child_bus(DEVICE(&s->soc.esdhc[i]), "sd-bus");
+        carddev = qdev_create(bus, TYPE_SD_CARD);
+        qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
+        object_property_set_bool(OBJECT(carddev), true,
+                                 "realized", &error_fatal);
+    }
+
     /*
      * We test explicitly for qtest here as it is not done (yet?) in
      * arm_load_kernel(). Without this the "make check" command would
-- 
2.20.1

From: Guenter Roeck <linux@roeck-us.net>

i.MX25 supports two USB controllers. Let's wire them up.

With this patch, imx25-pdk can boot from both USB ports.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200310215146.19688-3-linux@roeck-us.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/fsl-imx25.h |  9 +++++++++
 hw/arm/fsl-imx25.c         | 24 ++++++++++++++++++++++++
 2 files changed, 33 insertions(+)

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Allwinner H3 is a System on Chip containing four ARM Cortex A7
processor cores. Features and specifications include DDR2/DDR3 memory,
SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
various I/O modules. This commit adds support for the Allwinner H3
System on Chip.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-2-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/Makefile.objs            |   1 +
 include/hw/arm/allwinner-h3.h   | 106 +++++++++++
 hw/arm/allwinner-h3.c           | 327 ++++++++++++++++++++++++++++++++
 MAINTAINERS                     |   7 +
 default-configs/arm-softmmu.mak |   1 +
 hw/arm/Kconfig                  |   8 +
 6 files changed, 450 insertions(+)
 create mode 100644 include/hw/arm/allwinner-h3.h
 create mode 100644 hw/arm/allwinner-h3.c

diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -XXX,XX +XXX,XX @@ obj-$(CONFIG_DIGIC) += digic.o
 obj-$(CONFIG_OMAP) += omap1.o omap2.o
 obj-$(CONFIG_STRONGARM) += strongarm.o
 obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
+obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3.o
 obj-$(CONFIG_RASPI) += bcm2835_peripherals.o bcm2836.o raspi.o
 obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o
 obj-$(CONFIG_STM32F405_SOC) += stm32f405_soc.o
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner H3 System on Chip emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * The Allwinner H3 is a System on Chip containing four ARM Cortex A7
+ * processor cores. Features and specifications include DDR2/DDR3 memory,
+ * SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
+ * various I/O modules.
+ *
+ * This implementation is based on the following datasheet:
+ *
+ *   https://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf
+ *
+ * The latest datasheet and more info can be found on the Linux Sunxi wiki:
+ *
+ *   https://linux-sunxi.org/H3
+ */
+
+#ifndef HW_ARM_ALLWINNER_H3_H
+#define HW_ARM_ALLWINNER_H3_H
+
+#include "qom/object.h"
+#include "hw/arm/boot.h"
+#include "hw/timer/allwinner-a10-pit.h"
+#include "hw/intc/arm_gic.h"
+#include "target/arm/cpu.h"
+
+/**
+ * Allwinner H3 device list
+ *
+ * This enumeration is can be used refer to a particular device in the
+ * Allwinner H3 SoC. For example, the physical memory base address for
+ * each device can be found in the AwH3State object in the memmap member
+ * using the device enum value as index.
+ *
+ * @see AwH3State
+ */
+enum {
+    AW_H3_SRAM_A1,
+    AW_H3_SRAM_A2,
+    AW_H3_SRAM_C,
+    AW_H3_PIT,
+    AW_H3_UART0,
+    AW_H3_UART1,
+    AW_H3_UART2,
+    AW_H3_UART3,
+    AW_H3_GIC_DIST,
+    AW_H3_GIC_CPU,
+    AW_H3_GIC_HYP,
+    AW_H3_GIC_VCPU,
+    AW_H3_SDRAM
+};
+
+/** Total number of CPU cores in the H3 SoC */
+#define AW_H3_NUM_CPUS      (4)
+
+/**
+ * Allwinner H3 object model
+ * @{
+ */
+
+/** Object type for the Allwinner H3 SoC */
+#define TYPE_AW_H3 "allwinner-h3"
+
+/** Convert input object to Allwinner H3 state object */
+#define AW_H3(obj) OBJECT_CHECK(AwH3State, (obj), TYPE_AW_H3)
+
+/** @} */
+
+/**
+ * Allwinner H3 object
+ *
+ * This struct contains the state of all the devices
+ * which are currently emulated by the H3 SoC code.
+ */
+typedef struct AwH3State {
+    /*< private >*/
+    DeviceState parent_obj;
+    /*< public >*/
+
+    ARMCPU cpus[AW_H3_NUM_CPUS];
+    const hwaddr *memmap;
+    AwA10PITState timer;
+    GICState gic;
+    MemoryRegion sram_a1;
+    MemoryRegion sram_a2;
+    MemoryRegion sram_c;
+} AwH3State;
+
+#endif /* HW_ARM_ALLWINNER_H3_H */
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner H3 System on Chip emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "exec/address-spaces.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu/module.h"
+#include "qemu/units.h"
+#include "hw/qdev-core.h"
+#include "cpu.h"
+#include "hw/sysbus.h"
+#include "hw/char/serial.h"
+#include "hw/misc/unimp.h"
+#include "sysemu/sysemu.h"
+#include "hw/arm/allwinner-h3.h"
+
+/* Memory map */
+const hwaddr allwinner_h3_memmap[] = {
+    [AW_H3_SRAM_A1]    = 0x00000000,
+    [AW_H3_SRAM_A2]    = 0x00044000,
+    [AW_H3_SRAM_C]     = 0x00010000,
+    [AW_H3_PIT]        = 0x01c20c00,
+    [AW_H3_UART0]      = 0x01c28000,
+    [AW_H3_UART1]      = 0x01c28400,
+    [AW_H3_UART2]      = 0x01c28800,
+    [AW_H3_UART3]      = 0x01c28c00,
+    [AW_H3_GIC_DIST]   = 0x01c81000,
+    [AW_H3_GIC_CPU]    = 0x01c82000,
+    [AW_H3_GIC_HYP]    = 0x01c84000,
+    [AW_H3_GIC_VCPU]   = 0x01c86000,
+    [AW_H3_SDRAM]      = 0x40000000
+};
+
+/* List of unimplemented devices */
+struct AwH3Unimplemented {
+    const char *device_name;
+    hwaddr base;
+    hwaddr size;
+} unimplemented[] = {
+    { "d-engine",  0x01000000, 4 * MiB },
+    { "d-inter",   0x01400000, 128 * KiB },
+    { "syscon",    0x01c00000, 4 * KiB },
+    { "dma",       0x01c02000, 4 * KiB },
+    { "nfdc",      0x01c03000, 4 * KiB },
+    { "ts",        0x01c06000, 4 * KiB },
+    { "keymem",    0x01c0b000, 4 * KiB },
+    { "lcd0",      0x01c0c000, 4 * KiB },
+    { "lcd1",      0x01c0d000, 4 * KiB },
+    { "ve",        0x01c0e000, 4 * KiB },
+    { "mmc0",      0x01c0f000, 4 * KiB },
+    { "mmc1",      0x01c10000, 4 * KiB },
+    { "mmc2",      0x01c11000, 4 * KiB },
+    { "sid",       0x01c14000, 1 * KiB },
+    { "crypto",    0x01c15000, 4 * KiB },
+    { "msgbox",    0x01c17000, 4 * KiB },
+    { "spinlock",  0x01c18000, 4 * KiB },
+    { "usb0-otg",  0x01c19000, 4 * KiB },
+    { "usb0-phy",  0x01c1a000, 4 * KiB },
+    { "usb1-phy",  0x01c1b000, 4 * KiB },
+    { "usb2-phy",  0x01c1c000, 4 * KiB },
+    { "usb3-phy",  0x01c1d000, 4 * KiB },
+    { "smc",       0x01c1e000, 4 * KiB },
+    { "ccu",       0x01c20000, 1 * KiB },
+    { "pio",       0x01c20800, 1 * KiB },
+    { "owa",       0x01c21000, 1 * KiB },
+    { "pwm",       0x01c21400, 1 * KiB },
+    { "keyadc",    0x01c21800, 1 * KiB },
+    { "pcm0",      0x01c22000, 1 * KiB },
+    { "pcm1",      0x01c22400, 1 * KiB },
+    { "pcm2",      0x01c22800, 1 * KiB },
+    { "audio",     0x01c22c00, 2 * KiB },
+    { "smta",      0x01c23400, 1 * KiB },
+    { "ths",       0x01c25000, 1 * KiB },
+    { "uart0",     0x01c28000, 1 * KiB },
+    { "uart1",     0x01c28400, 1 * KiB },
+    { "uart2",     0x01c28800, 1 * KiB },
+    { "uart3",     0x01c28c00, 1 * KiB },
+    { "twi0",      0x01c2ac00, 1 * KiB },
+    { "twi1",      0x01c2b000, 1 * KiB },
+    { "twi2",      0x01c2b400, 1 * KiB },
+    { "scr",       0x01c2c400, 1 * KiB },
+    { "emac",      0x01c30000, 64 * KiB },
+    { "gpu",       0x01c40000, 64 * KiB },
+    { "hstmr",     0x01c60000, 4 * KiB },
+    { "dramcom",   0x01c62000, 4 * KiB },
+    { "dramctl0",  0x01c63000, 4 * KiB },
+    { "dramphy0",  0x01c65000, 4 * KiB },
+    { "spi0",      0x01c68000, 4 * KiB },
+    { "spi1",      0x01c69000, 4 * KiB },
+    { "csi",       0x01cb0000, 320 * KiB },
+    { "tve",       0x01e00000, 64 * KiB },
+    { "hdmi",      0x01ee0000, 128 * KiB },
+    { "rtc",       0x01f00000, 1 * KiB },
+    { "r_timer",   0x01f00800, 1 * KiB },
+    { "r_intc",    0x01f00c00, 1 * KiB },
+    { "r_wdog",    0x01f01000, 1 * KiB },
+    { "r_prcm",    0x01f01400, 1 * KiB },
+    { "r_twd",     0x01f01800, 1 * KiB },
+    { "r_cpucfg",  0x01f01c00, 1 * KiB },
+    { "r_cir-rx",  0x01f02000, 1 * KiB },
+    { "r_twi",     0x01f02400, 1 * KiB },
+    { "r_uart",    0x01f02800, 1 * KiB },
+    { "r_pio",     0x01f02c00, 1 * KiB },
+    { "r_pwm",     0x01f03800, 1 * KiB },
+    { "core-dbg",  0x3f500000, 128 * KiB },
+    { "tsgen-ro",  0x3f506000, 4 * KiB },
+    { "tsgen-ctl", 0x3f507000, 4 * KiB },
+    { "ddr-mem",   0x40000000, 2 * GiB },
+    { "n-brom",    0xffff0000, 32 * KiB },
+    { "s-brom",    0xffff0000, 64 * KiB }
+};
+
+/* Per Processor Interrupts */
+enum {
+    AW_H3_GIC_PPI_MAINT     =  9,
+    AW_H3_GIC_PPI_HYPTIMER  = 10,
+    AW_H3_GIC_PPI_VIRTTIMER = 11,
+    AW_H3_GIC_PPI_SECTIMER  = 13,
+    AW_H3_GIC_PPI_PHYSTIMER = 14
+};
+
+/* Shared Processor Interrupts */
+enum {
+    AW_H3_GIC_SPI_UART0     =  0,
+    AW_H3_GIC_SPI_UART1     =  1,
+    AW_H3_GIC_SPI_UART2     =  2,
+    AW_H3_GIC_SPI_UART3     =  3,
+    AW_H3_GIC_SPI_TIMER0    = 18,
+    AW_H3_GIC_SPI_TIMER1    = 19,
+};
+
+/* Allwinner H3 general constants */
+enum {
+    AW_H3_GIC_NUM_SPI       = 128
+};
+
+static void allwinner_h3_init(Object *obj)
+{
+    AwH3State *s = AW_H3(obj);
+
+    s->memmap = allwinner_h3_memmap;
+
+    for (int i = 0; i < AW_H3_NUM_CPUS; i++) {
+        object_initialize_child(obj, "cpu[*]", &s->cpus[i], sizeof(s->cpus[i]),
+                                ARM_CPU_TYPE_NAME("cortex-a7"),
+                                &error_abort, NULL);
+    }
+
+    sysbus_init_child_obj(obj, "gic", &s->gic, sizeof(s->gic),
+                          TYPE_ARM_GIC);
+
+    sysbus_init_child_obj(obj, "timer", &s->timer, sizeof(s->timer),
+                          TYPE_AW_A10_PIT);
+    object_property_add_alias(obj, "clk0-freq", OBJECT(&s->timer),
+                              "clk0-freq", &error_abort);
+    object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer),
+                              "clk1-freq", &error_abort);
+}
+
+static void allwinner_h3_realize(DeviceState *dev, Error **errp)
+{
+    AwH3State *s = AW_H3(dev);
+    unsigned i;
+
+    /* CPUs */
+    for (i = 0; i < AW_H3_NUM_CPUS; i++) {
+
+        /* Provide Power State Coordination Interface */
+        qdev_prop_set_int32(DEVICE(&s->cpus[i]), "psci-conduit",
+                            QEMU_PSCI_CONDUIT_HVC);
+
+        /* Disable secondary CPUs */
+        qdev_prop_set_bit(DEVICE(&s->cpus[i]), "start-powered-off",
+                          i > 0);
+
+        /* All exception levels required */
+        qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el3", true);
+        qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el2", true);
+
+        /* Mark realized */
+        qdev_init_nofail(DEVICE(&s->cpus[i]));
+    }
+
+    /* Generic Interrupt Controller */
+    qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", AW_H3_GIC_NUM_SPI +
+                                                     GIC_INTERNAL);
+    qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
+    qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", AW_H3_NUM_CPUS);
+    qdev_prop_set_bit(DEVICE(&s->gic), "has-security-extensions", false);
+    qdev_prop_set_bit(DEVICE(&s->gic), "has-virtualization-extensions", true);
+    qdev_init_nofail(DEVICE(&s->gic));
+
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 0, s->memmap[AW_H3_GIC_DIST]);
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 1, s->memmap[AW_H3_GIC_CPU]);
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 2, s->memmap[AW_H3_GIC_HYP]);
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 3, s->memmap[AW_H3_GIC_VCPU]);
+
+    /*
+     * Wire the outputs from each CPU's generic timer and the GICv3
+     * maintenance interrupt signal to the appropriate GIC PPI inputs,
+     * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
+     */
+    for (i = 0; i < AW_H3_NUM_CPUS; i++) {
+        DeviceState *cpudev = DEVICE(&s->cpus[i]);
+        int ppibase = AW_H3_GIC_NUM_SPI + i * GIC_INTERNAL + GIC_NR_SGIS;
+        int irq;
+        /*
+         * Mapping from the output timer irq lines from the CPU to the
+         * GIC PPI inputs used for this board.
+         */
+        const int timer_irq[] = {
+            [GTIMER_PHYS] = AW_H3_GIC_PPI_PHYSTIMER,
+            [GTIMER_VIRT] = AW_H3_GIC_PPI_VIRTTIMER,
+            [GTIMER_HYP]  = AW_H3_GIC_PPI_HYPTIMER,
+            [GTIMER_SEC]  = AW_H3_GIC_PPI_SECTIMER,
+        };
+
+        /* Connect CPU timer outputs to GIC PPI inputs */
+        for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
+            qdev_connect_gpio_out(cpudev, irq,
+                                  qdev_get_gpio_in(DEVICE(&s->gic),
+                                                   ppibase + timer_irq[irq]));
+        }
+
+        /* Connect GIC outputs to CPU interrupt inputs */
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
+                           qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + AW_H3_NUM_CPUS,
+                           qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (2 * AW_H3_NUM_CPUS),
+                           qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (3 * AW_H3_NUM_CPUS),
+                           qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
+
+        /* GIC maintenance signal */
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (4 * AW_H3_NUM_CPUS),
+                           qdev_get_gpio_in(DEVICE(&s->gic),
+                                            ppibase + AW_H3_GIC_PPI_MAINT));
+    }
+
+    /* Timer */
+    qdev_init_nofail(DEVICE(&s->timer));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->timer), 0, s->memmap[AW_H3_PIT]);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 0,
+                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER0));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 1,
+                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER1));
+
+    /* SRAM */
+    memory_region_init_ram(&s->sram_a1, OBJECT(dev), "sram A1",
+                            64 * KiB, &error_abort);
+    memory_region_init_ram(&s->sram_a2, OBJECT(dev), "sram A2",
+                            32 * KiB, &error_abort);
+    memory_region_init_ram(&s->sram_c, OBJECT(dev), "sram C",
+                            44 * KiB, &error_abort);
+    memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A1],
+                                &s->sram_a1);
+    memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A2],
+                                &s->sram_a2);
+    memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_C],
+                                &s->sram_c);
+
+    /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
+    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
+                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
+                   115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);
+    /* UART1 */
+    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART1], 2,
+                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART1),
+                   115200, serial_hd(1), DEVICE_NATIVE_ENDIAN);
+    /* UART2 */
+    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART2], 2,
+                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART2),
+                   115200, serial_hd(2), DEVICE_NATIVE_ENDIAN);
+    /* UART3 */
+    serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART3], 2,
+                   qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3),
+                   115200, serial_hd(3), DEVICE_NATIVE_ENDIAN);
+
+    /* Unimplemented devices */
+    for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
+        create_unimplemented_device(unimplemented[i].device_name,
+                                    unimplemented[i].base,
+                                    unimplemented[i].size);
+    }
+}
+
+static void allwinner_h3_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = allwinner_h3_realize;
+    /* Reason: uses serial_hd() in realize function */
+    dc->user_creatable = false;
+}
+
+static const TypeInfo allwinner_h3_type_info = {
+    .name = TYPE_AW_H3,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(AwH3State),
+    .instance_init = allwinner_h3_init,
+    .class_init = allwinner_h3_class_init,
+};
+
+static void allwinner_h3_register_types(void)
+{
+    type_register_static(&allwinner_h3_type_info);
+}
+
+type_init(allwinner_h3_register_types)
diff --git a/MAINTAINERS b/MAINTAINERS
index XXXXXXX..XXXXXXX 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -XXX,XX +XXX,XX @@ F: hw/*/allwinner*
 F: include/hw/*/allwinner*
 F: hw/arm/cubieboard.c
 
+Allwinner-h3
+M: Niek Linnenbank <nieklinnenbank@gmail.com>
+L: qemu-arm@nongnu.org
+S: Maintained
+F: hw/*/allwinner-h3*
+F: include/hw/*/allwinner-h3*
+
 ARM PrimeCell and CMSDK devices
 M: Peter Maydell <peter.maydell@linaro.org>
 L: qemu-arm@nongnu.org
diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index XXXXXXX..XXXXXXX 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -XXX,XX +XXX,XX @@ CONFIG_FSL_IMX25=y
 CONFIG_FSL_IMX7=y
 CONFIG_FSL_IMX6UL=y
 CONFIG_SEMIHOSTING=y
+CONFIG_ALLWINNER_H3=y
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -XXX,XX +XXX,XX @@ config ALLWINNER_A10
     select SERIAL
     select UNIMP
 
+config ALLWINNER_H3
+    bool
+    select ALLWINNER_A10_PIT
+    select SERIAL
+    select ARM_TIMER
+    select ARM_GIC
+    select UNIMP
+
 config RASPI
     bool
     select FRAMEBUFFER
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Xunlong Orange Pi PC is an Allwinner H3 System on Chip
based embedded computer with mainline support in both U-Boot
and Linux. The board comes with a Quad Core Cortex A7 @ 1.3GHz,
1GiB RAM, 100Mbit ethernet, USB, SD/MMC, USB, HDMI and
various other I/O. This commit add support for the Xunlong
Orange Pi PC machine.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Tested-by: KONRAD Frederic <frederic.konrad@adacore.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200311221854.30370-3-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/Makefile.objs |  2 +-
 hw/arm/orangepi.c    | 92 ++++++++++++++++++++++++++++++++++++++++++++
 MAINTAINERS          |  1 +
 3 files changed, 94 insertions(+), 1 deletion(-)
 create mode 100644 hw/arm/orangepi.c

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Clock Control Unit is responsible for clock signal generation,
configuration and distribution in the Allwinner H3 System on Chip.
This commit adds support for the Clock Control Unit which emulates
a simple read/write register interface.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-4-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/misc/Makefile.objs              |   1 +
 include/hw/arm/allwinner-h3.h      |   3 +
 include/hw/misc/allwinner-h3-ccu.h |  66 ++++++++
 hw/arm/allwinner-h3.c              |   9 +-
 hw/misc/allwinner-h3-ccu.c         | 242 +++++++++++++++++++++++++++++
 5 files changed, 320 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/misc/allwinner-h3-ccu.h
 create mode 100644 hw/misc/allwinner-h3-ccu.c

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Allwinner H3 System on Chip contains multiple USB 2.0 bus
connections which provide software access using the Enhanced
Host Controller Interface (EHCI) and Open Host Controller
Interface (OHCI) interfaces. This commit adds support for
both interfaces in the Allwinner H3 System on Chip.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-5-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/usb/hcd-ehci.h             |  1 +
 include/hw/arm/allwinner-h3.h |  8 +++++++
 hw/arm/allwinner-h3.c         | 44 +++++++++++++++++++++++++++++++++++
 hw/usb/hcd-ehci-sysbus.c      | 17 ++++++++++++++
 hw/arm/Kconfig                |  2 ++
 5 files changed, 72 insertions(+)

diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
index XXXXXXX..XXXXXXX 100644
--- a/hw/usb/hcd-ehci.h
+++ b/hw/usb/hcd-ehci.h
@@ -XXX,XX +XXX,XX @@ typedef struct EHCIPCIState {
 #define TYPE_SYS_BUS_EHCI "sysbus-ehci-usb"
 #define TYPE_PLATFORM_EHCI "platform-ehci-usb"
 #define TYPE_EXYNOS4210_EHCI "exynos4210-ehci-usb"
+#define TYPE_AW_H3_EHCI "aw-h3-ehci-usb"
 #define TYPE_TEGRA2_EHCI "tegra2-ehci-usb"
 #define TYPE_PPC4xx_EHCI "ppc4xx-ehci-usb"
 #define TYPE_FUSBH200_EHCI "fusbh200-ehci-usb"
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_SRAM_A1,
     AW_H3_SRAM_A2,
     AW_H3_SRAM_C,
+    AW_H3_EHCI0,
+    AW_H3_OHCI0,
+    AW_H3_EHCI1,
+    AW_H3_OHCI1,
+    AW_H3_EHCI2,
+    AW_H3_OHCI2,
+    AW_H3_EHCI3,
+    AW_H3_OHCI3,
     AW_H3_CCU,
     AW_H3_PIT,
     AW_H3_UART0,
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@
 #include "hw/sysbus.h"
 #include "hw/char/serial.h"
 #include "hw/misc/unimp.h"
+#include "hw/usb/hcd-ehci.h"
 #include "sysemu/sysemu.h"
 #include "hw/arm/allwinner-h3.h"
 
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_SRAM_A1]    = 0x00000000,
     [AW_H3_SRAM_A2]    = 0x00044000,
     [AW_H3_SRAM_C]     = 0x00010000,
+    [AW_H3_EHCI0]      = 0x01c1a000,
+    [AW_H3_OHCI0]      = 0x01c1a400,
+    [AW_H3_EHCI1]      = 0x01c1b000,
+    [AW_H3_OHCI1]      = 0x01c1b400,
+    [AW_H3_EHCI2]      = 0x01c1c000,
+    [AW_H3_OHCI2]      = 0x01c1c400,
+    [AW_H3_EHCI3]      = 0x01c1d000,
+    [AW_H3_OHCI3]      = 0x01c1d400,
     [AW_H3_CCU]        = 0x01c20000,
     [AW_H3_PIT]        = 0x01c20c00,
     [AW_H3_UART0]      = 0x01c28000,
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_GIC_SPI_UART3     =  3,
     AW_H3_GIC_SPI_TIMER0    = 18,
     AW_H3_GIC_SPI_TIMER1    = 19,
+    AW_H3_GIC_SPI_EHCI0     = 72,
+    AW_H3_GIC_SPI_OHCI0     = 73,
+    AW_H3_GIC_SPI_EHCI1     = 74,
+    AW_H3_GIC_SPI_OHCI1     = 75,
+    AW_H3_GIC_SPI_EHCI2     = 76,
+    AW_H3_GIC_SPI_OHCI2     = 77,
+    AW_H3_GIC_SPI_EHCI3     = 78,
+    AW_H3_GIC_SPI_OHCI3     = 79,
 };
 
 /* Allwinner H3 general constants */
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
     qdev_init_nofail(DEVICE(&s->ccu));
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
 
+    /* Universal Serial Bus */
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI0));
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI1],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI1));
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI2],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI2));
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI3],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI3));
+
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI0],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI0));
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI1],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI1));
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI2],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI2));
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI3],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI3));
+
     /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
     serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
                    qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
diff --git a/hw/usb/hcd-ehci-sysbus.c b/hw/usb/hcd-ehci-sysbus.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/usb/hcd-ehci-sysbus.c
+++ b/hw/usb/hcd-ehci-sysbus.c
@@ -XXX,XX +XXX,XX @@ static const TypeInfo ehci_exynos4210_type_info = {
     .class_init    = ehci_exynos4210_class_init,
 };
 
+static void ehci_aw_h3_class_init(ObjectClass *oc, void *data)
+{
+    SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    sec->capsbase = 0x0;
+    sec->opregbase = 0x10;
+    set_bit(DEVICE_CATEGORY_USB, dc->categories);
+}
+
+static const TypeInfo ehci_aw_h3_type_info = {
+    .name          = TYPE_AW_H3_EHCI,
+    .parent        = TYPE_SYS_BUS_EHCI,
+    .class_init    = ehci_aw_h3_class_init,
+};
+
 static void ehci_tegra2_class_init(ObjectClass *oc, void *data)
 {
     SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
@@ -XXX,XX +XXX,XX @@ static void ehci_sysbus_register_types(void)
     type_register_static(&ehci_type_info);
     type_register_static(&ehci_platform_type_info);
     type_register_static(&ehci_exynos4210_type_info);
+    type_register_static(&ehci_aw_h3_type_info);
     type_register_static(&ehci_tegra2_type_info);
     type_register_static(&ehci_ppc4xx_type_info);
     type_register_static(&ehci_fusbh200_type_info);
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -XXX,XX +XXX,XX @@ config ALLWINNER_H3
     select ARM_TIMER
     select ARM_GIC
     select UNIMP
+    select USB_OHCI
+    select USB_EHCI_SYSBUS
 
 config RASPI
     bool
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Allwinner H3 System on Chip has an System Control
module that provides system wide generic controls and
device information. This commit adds support for the
Allwinner H3 System Control module.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-6-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/misc/Makefile.objs                  |   1 +
 include/hw/arm/allwinner-h3.h          |   3 +
 include/hw/misc/allwinner-h3-sysctrl.h |  67 ++++++++++++
 hw/arm/allwinner-h3.c                  |   9 +-
 hw/misc/allwinner-h3-sysctrl.c         | 140 +++++++++++++++++++++++++
 5 files changed, 219 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/misc/allwinner-h3-sysctrl.h
 create mode 100644 hw/misc/allwinner-h3-sysctrl.c

From: Niek Linnenbank <nieklinnenbank@gmail.com>

Various Allwinner System on Chip designs contain multiple processors
that can be configured and reset using the generic CPU Configuration
module interface. This commit adds support for the Allwinner CPU
configuration interface which emulates the following features:

* CPU reset
 * CPU status

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-7-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/misc/Makefile.objs              |   1 +
 include/hw/arm/allwinner-h3.h      |   3 +
 include/hw/misc/allwinner-cpucfg.h |  52 ++++++
 hw/arm/allwinner-h3.c              |   9 +-
 hw/misc/allwinner-cpucfg.c         | 282 +++++++++++++++++++++++++++++
 hw/misc/trace-events               |   5 +
 6 files changed, 351 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/misc/allwinner-cpucfg.h
 create mode 100644 hw/misc/allwinner-cpucfg.c

diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/hw/misc/Makefile.objs
+++ b/hw/misc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_MACIO) += macio/
 common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
 
 common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
+obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
 common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
 common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
 common-obj-$(CONFIG_NSERIES) += cbus.o
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/timer/allwinner-a10-pit.h"
 #include "hw/intc/arm_gic.h"
 #include "hw/misc/allwinner-h3-ccu.h"
+#include "hw/misc/allwinner-cpucfg.h"
 #include "hw/misc/allwinner-h3-sysctrl.h"
 #include "target/arm/cpu.h"
 
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_GIC_CPU,
     AW_H3_GIC_HYP,
     AW_H3_GIC_VCPU,
+    AW_H3_CPUCFG,
     AW_H3_SDRAM
 };
 
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
     const hwaddr *memmap;
     AwA10PITState timer;
     AwH3ClockCtlState ccu;
+    AwCpuCfgState cpucfg;
     AwH3SysCtrlState sysctrl;
     GICState gic;
     MemoryRegion sram_a1;
diff --git a/include/hw/misc/allwinner-cpucfg.h b/include/hw/misc/allwinner-cpucfg.h
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/include/hw/misc/allwinner-cpucfg.h
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner CPU Configuration Module emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_MISC_ALLWINNER_CPUCFG_H
+#define HW_MISC_ALLWINNER_CPUCFG_H
+
+#include "qom/object.h"
+#include "hw/sysbus.h"
+
+/**
+ * Object model
+ * @{
+ */
+
+#define TYPE_AW_CPUCFG   "allwinner-cpucfg"
+#define AW_CPUCFG(obj) \
+    OBJECT_CHECK(AwCpuCfgState, (obj), TYPE_AW_CPUCFG)
+
+/** @} */
+
+/**
+ * Allwinner CPU Configuration Module instance state
+ */
+typedef struct AwCpuCfgState {
+    /*< private >*/
+    SysBusDevice parent_obj;
+    /*< public >*/
+
+    MemoryRegion iomem;
+    uint32_t gen_ctrl;
+    uint32_t super_standby;
+    uint32_t entry_addr;
+
+} AwCpuCfgState;
+
+#endif /* HW_MISC_ALLWINNER_CPUCFG_H */
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_GIC_CPU]    = 0x01c82000,
     [AW_H3_GIC_HYP]    = 0x01c84000,
     [AW_H3_GIC_VCPU]   = 0x01c86000,
+    [AW_H3_CPUCFG]     = 0x01f01c00,
     [AW_H3_SDRAM]      = 0x40000000
 };
 
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
     { "r_wdog",    0x01f01000, 1 * KiB },
     { "r_prcm",    0x01f01400, 1 * KiB },
     { "r_twd",     0x01f01800, 1 * KiB },
-    { "r_cpucfg",  0x01f01c00, 1 * KiB },
     { "r_cir-rx",  0x01f02000, 1 * KiB },
     { "r_twi",     0x01f02400, 1 * KiB },
     { "r_uart",    0x01f02800, 1 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
 
     sysbus_init_child_obj(obj, "sysctrl", &s->sysctrl, sizeof(s->sysctrl),
                           TYPE_AW_H3_SYSCTRL);
+
+    sysbus_init_child_obj(obj, "cpucfg", &s->cpucfg, sizeof(s->cpucfg),
+                          TYPE_AW_CPUCFG);
 }
 
 static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
     qdev_init_nofail(DEVICE(&s->sysctrl));
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->sysctrl), 0, s->memmap[AW_H3_SYSCTRL]);
 
+    /* CPU Configuration */
+    qdev_init_nofail(DEVICE(&s->cpucfg));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->cpucfg), 0, s->memmap[AW_H3_CPUCFG]);
+
     /* Universal Serial Bus */
     sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
                          qdev_get_gpio_in(DEVICE(&s->gic),
diff --git a/hw/misc/allwinner-cpucfg.c b/hw/misc/allwinner-cpucfg.c
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/misc/allwinner-cpucfg.c
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner CPU Configuration Module emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/sysbus.h"
+#include "migration/vmstate.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qemu/error-report.h"
+#include "qemu/timer.h"
+#include "hw/core/cpu.h"
+#include "target/arm/arm-powerctl.h"
+#include "target/arm/cpu.h"
+#include "hw/misc/allwinner-cpucfg.h"
+#include "trace.h"
+
+/* CPUCFG register offsets */
+enum {
+    REG_CPUS_RST_CTRL       = 0x0000, /* CPUs Reset Control */
+    REG_CPU0_RST_CTRL       = 0x0040, /* CPU#0 Reset Control */
+    REG_CPU0_CTRL           = 0x0044, /* CPU#0 Control */
+    REG_CPU0_STATUS         = 0x0048, /* CPU#0 Status */
+    REG_CPU1_RST_CTRL       = 0x0080, /* CPU#1 Reset Control */
+    REG_CPU1_CTRL           = 0x0084, /* CPU#1 Control */
+    REG_CPU1_STATUS         = 0x0088, /* CPU#1 Status */
+    REG_CPU2_RST_CTRL       = 0x00C0, /* CPU#2 Reset Control */
+    REG_CPU2_CTRL           = 0x00C4, /* CPU#2 Control */
+    REG_CPU2_STATUS         = 0x00C8, /* CPU#2 Status */
+    REG_CPU3_RST_CTRL       = 0x0100, /* CPU#3 Reset Control */
+    REG_CPU3_CTRL           = 0x0104, /* CPU#3 Control */
+    REG_CPU3_STATUS         = 0x0108, /* CPU#3 Status */
+    REG_CPU_SYS_RST         = 0x0140, /* CPU System Reset */
+    REG_CLK_GATING          = 0x0144, /* CPU Clock Gating */
+    REG_GEN_CTRL            = 0x0184, /* General Control */
+    REG_SUPER_STANDBY       = 0x01A0, /* Super Standby Flag */
+    REG_ENTRY_ADDR          = 0x01A4, /* Reset Entry Address */
+    REG_DBG_EXTERN          = 0x01E4, /* Debug External */
+    REG_CNT64_CTRL          = 0x0280, /* 64-bit Counter Control */
+    REG_CNT64_LOW           = 0x0284, /* 64-bit Counter Low */
+    REG_CNT64_HIGH          = 0x0288, /* 64-bit Counter High */
+};
+
+/* CPUCFG register flags */
+enum {
+    CPUX_RESET_RELEASED     = ((1 << 1) | (1 << 0)),
+    CPUX_STATUS_SMP         = (1 << 0),
+    CPU_SYS_RESET_RELEASED  = (1 << 0),
+    CLK_GATING_ENABLE       = ((1 << 8) | 0xF),
+};
+
+/* CPUCFG register reset values */
+enum {
+    REG_CLK_GATING_RST      = 0x0000010F,
+    REG_GEN_CTRL_RST        = 0x00000020,
+    REG_SUPER_STANDBY_RST   = 0x0,
+    REG_CNT64_CTRL_RST      = 0x0,
+};
+
+/* CPUCFG constants */
+enum {
+    CPU_EXCEPTION_LEVEL_ON_RESET = 3, /* EL3 */
+};
+
+static void allwinner_cpucfg_cpu_reset(AwCpuCfgState *s, uint8_t cpu_id)
+{
+    int ret;
+
+    trace_allwinner_cpucfg_cpu_reset(cpu_id, s->entry_addr);
+
+    ARMCPU *target_cpu = ARM_CPU(arm_get_cpu_by_id(cpu_id));
+    if (!target_cpu) {
+        /*
+         * Called with a bogus value for cpu_id. Guest error will
+         * already have been logged, we can simply return here.
+         */
+        return;
+    }
+    bool target_aa64 = arm_feature(&target_cpu->env, ARM_FEATURE_AARCH64);
+
+    ret = arm_set_cpu_on(cpu_id, s->entry_addr, 0,
+                         CPU_EXCEPTION_LEVEL_ON_RESET, target_aa64);
+    if (ret != QEMU_ARM_POWERCTL_RET_SUCCESS) {
+        error_report("%s: failed to bring up CPU %d: err %d",
+                     __func__, cpu_id, ret);
+        return;
+    }
+}
+
+static uint64_t allwinner_cpucfg_read(void *opaque, hwaddr offset,
+                                      unsigned size)
+{
+    const AwCpuCfgState *s = AW_CPUCFG(opaque);
+    uint64_t val = 0;
+
+    switch (offset) {
+    case REG_CPUS_RST_CTRL:     /* CPUs Reset Control */
+    case REG_CPU_SYS_RST:       /* CPU System Reset */
+        val = CPU_SYS_RESET_RELEASED;
+        break;
+    case REG_CPU0_RST_CTRL:     /* CPU#0 Reset Control */
+    case REG_CPU1_RST_CTRL:     /* CPU#1 Reset Control */
+    case REG_CPU2_RST_CTRL:     /* CPU#2 Reset Control */
+    case REG_CPU3_RST_CTRL:     /* CPU#3 Reset Control */
+        val = CPUX_RESET_RELEASED;
+        break;
+    case REG_CPU0_CTRL:         /* CPU#0 Control */
+    case REG_CPU1_CTRL:         /* CPU#1 Control */
+    case REG_CPU2_CTRL:         /* CPU#2 Control */
+    case REG_CPU3_CTRL:         /* CPU#3 Control */
+        val = 0;
+        break;
+    case REG_CPU0_STATUS:       /* CPU#0 Status */
+    case REG_CPU1_STATUS:       /* CPU#1 Status */
+    case REG_CPU2_STATUS:       /* CPU#2 Status */
+    case REG_CPU3_STATUS:       /* CPU#3 Status */
+        val = CPUX_STATUS_SMP;
+        break;
+    case REG_CLK_GATING:        /* CPU Clock Gating */
+        val = CLK_GATING_ENABLE;
+        break;
+    case REG_GEN_CTRL:          /* General Control */
+        val = s->gen_ctrl;
+        break;
+    case REG_SUPER_STANDBY:     /* Super Standby Flag */
+        val = s->super_standby;
+        break;
+    case REG_ENTRY_ADDR:        /* Reset Entry Address */
+        val = s->entry_addr;
+        break;
+    case REG_DBG_EXTERN:        /* Debug External */
+    case REG_CNT64_CTRL:        /* 64-bit Counter Control */
+    case REG_CNT64_LOW:         /* 64-bit Counter Low */
+    case REG_CNT64_HIGH:        /* 64-bit Counter High */
+        qemu_log_mask(LOG_UNIMP, "%s: unimplemented register at 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        break;
+    }
+
+    trace_allwinner_cpucfg_read(offset, val, size);
+
+    return val;
+}
+
+static void allwinner_cpucfg_write(void *opaque, hwaddr offset,
+                                   uint64_t val, unsigned size)
+{
+    AwCpuCfgState *s = AW_CPUCFG(opaque);
+
+    trace_allwinner_cpucfg_write(offset, val, size);
+
+    switch (offset) {
+    case REG_CPUS_RST_CTRL:     /* CPUs Reset Control */
+    case REG_CPU_SYS_RST:       /* CPU System Reset */
+        break;
+    case REG_CPU0_RST_CTRL:     /* CPU#0 Reset Control */
+    case REG_CPU1_RST_CTRL:     /* CPU#1 Reset Control */
+    case REG_CPU2_RST_CTRL:     /* CPU#2 Reset Control */
+    case REG_CPU3_RST_CTRL:     /* CPU#3 Reset Control */
+        if (val) {
+            allwinner_cpucfg_cpu_reset(s, (offset - REG_CPU0_RST_CTRL) >> 6);
+        }
+        break;
+    case REG_CPU0_CTRL:         /* CPU#0 Control */
+    case REG_CPU1_CTRL:         /* CPU#1 Control */
+    case REG_CPU2_CTRL:         /* CPU#2 Control */
+    case REG_CPU3_CTRL:         /* CPU#3 Control */
+    case REG_CPU0_STATUS:       /* CPU#0 Status */
+    case REG_CPU1_STATUS:       /* CPU#1 Status */
+    case REG_CPU2_STATUS:       /* CPU#2 Status */
+    case REG_CPU3_STATUS:       /* CPU#3 Status */
+    case REG_CLK_GATING:        /* CPU Clock Gating */
+        break;
+    case REG_GEN_CTRL:          /* General Control */
+        s->gen_ctrl = val;
+        break;
+    case REG_SUPER_STANDBY:     /* Super Standby Flag */
+        s->super_standby = val;
+        break;
+    case REG_ENTRY_ADDR:        /* Reset Entry Address */
+        s->entry_addr = val;
+        break;
+    case REG_DBG_EXTERN:        /* Debug External */
+    case REG_CNT64_CTRL:        /* 64-bit Counter Control */
+    case REG_CNT64_LOW:         /* 64-bit Counter Low */
+    case REG_CNT64_HIGH:        /* 64-bit Counter High */
+        qemu_log_mask(LOG_UNIMP, "%s: unimplemented register at 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        break;
+    }
+}
+
+static const MemoryRegionOps allwinner_cpucfg_ops = {
+    .read = allwinner_cpucfg_read,
+    .write = allwinner_cpucfg_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static void allwinner_cpucfg_reset(DeviceState *dev)
+{
+    AwCpuCfgState *s = AW_CPUCFG(dev);
+
+    /* Set default values for registers */
+    s->gen_ctrl = REG_GEN_CTRL_RST;
+    s->super_standby = REG_SUPER_STANDBY_RST;
+    s->entry_addr = 0;
+}
+
+static void allwinner_cpucfg_init(Object *obj)
+{
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    AwCpuCfgState *s = AW_CPUCFG(obj);
+
+    /* Memory mapping */
+    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_cpucfg_ops, s,
+                          TYPE_AW_CPUCFG, 1 * KiB);
+    sysbus_init_mmio(sbd, &s->iomem);
+}
+
+static const VMStateDescription allwinner_cpucfg_vmstate = {
+    .name = "allwinner-cpucfg",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32(gen_ctrl, AwCpuCfgState),
+        VMSTATE_UINT32(super_standby, AwCpuCfgState),
+        VMSTATE_UINT32(entry_addr, AwCpuCfgState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void allwinner_cpucfg_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->reset = allwinner_cpucfg_reset;
+    dc->vmsd = &allwinner_cpucfg_vmstate;
+}
+
+static const TypeInfo allwinner_cpucfg_info = {
+    .name          = TYPE_AW_CPUCFG,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_init = allwinner_cpucfg_init,
+    .instance_size = sizeof(AwCpuCfgState),
+    .class_init    = allwinner_cpucfg_class_init,
+};
+
+static void allwinner_cpucfg_register(void)
+{
+    type_register_static(&allwinner_cpucfg_info);
+}
+
+type_init(allwinner_cpucfg_register)
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index XXXXXXX..XXXXXXX 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -XXX,XX +XXX,XX @@
 # See docs/devel/tracing.txt for syntax documentation.
 
+# allwinner-cpucfg.c
+allwinner_cpucfg_cpu_reset(uint8_t cpu_id, uint32_t reset_addr) "id %u, reset_addr 0x%" PRIu32
+allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+
 # eccmemctl.c
 ecc_mem_writel_mer(uint32_t val) "Write memory enable 0x%08x"
 ecc_mem_writel_mdr(uint32_t val) "Write memory delay 0x%08x"
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Security Identifier device found in various Allwinner System on Chip
designs gives applications a per-board unique identifier. This commit
adds support for the Allwinner Security Identifier using a 128-bit
UUID value as input.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-8-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/misc/Makefile.objs           |   1 +
 include/hw/arm/allwinner-h3.h   |   3 +
 include/hw/misc/allwinner-sid.h |  60 ++++++++++++
 hw/arm/allwinner-h3.c           |  11 ++-
 hw/arm/orangepi.c               |   8 ++
 hw/misc/allwinner-sid.c         | 168 ++++++++++++++++++++++++++++++++
 hw/misc/trace-events            |   4 +
 7 files changed, 254 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/misc/allwinner-sid.h
 create mode 100644 hw/misc/allwinner-sid.c

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Allwinner System on Chip families sun4i and above contain
an integrated storage controller for Secure Digital (SD) and
Multi Media Card (MMC) interfaces. This commit adds support
for the Allwinner SD/MMC storage controller with the following
emulated features:

* DMA transfers
 * Direct FIFO I/O
 * Short/Long format command responses
 * Auto-Stop command (CMD12)
 * Insert & remove card detection

The following boards are extended with the SD host controller:

* Cubieboard (hw/arm/cubieboard.c)
 * Orange Pi PC (hw/arm/orangepi.c)

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-9-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/sd/Makefile.objs              |   1 +
 include/hw/arm/allwinner-a10.h   |   2 +
 include/hw/arm/allwinner-h3.h    |   3 +
 include/hw/sd/allwinner-sdhost.h | 135 +++++
 hw/arm/allwinner-a10.c           |  11 +
 hw/arm/allwinner-h3.c            |  15 +-
 hw/arm/cubieboard.c              |  15 +
 hw/arm/orangepi.c                |  16 +
 hw/sd/allwinner-sdhost.c         | 854 +++++++++++++++++++++++++++++++
 hw/arm/Kconfig                   |   1 +
 hw/sd/trace-events               |   7 +
 11 files changed, 1059 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/sd/allwinner-sdhost.h
 create mode 100644 hw/sd/allwinner-sdhost.c

diff --git a/hw/sd/Makefile.objs b/hw/sd/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/hw/sd/Makefile.objs
+++ b/hw/sd/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_SD) += sd.o core.o sdmmc-internal.o
 common-obj-$(CONFIG_SDHCI) += sdhci.o
 common-obj-$(CONFIG_SDHCI_PCI) += sdhci-pci.o
 
+common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sdhost.o
 common-obj-$(CONFIG_MILKYMIST) += milkymist-memcard.o
 common-obj-$(CONFIG_OMAP) += omap_mmc.o
 common-obj-$(CONFIG_PXA2XX) += pxa2xx_mmci.o
diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-a10.h
+++ b/include/hw/arm/allwinner-a10.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/timer/allwinner-a10-pit.h"
 #include "hw/intc/allwinner-a10-pic.h"
 #include "hw/net/allwinner_emac.h"
+#include "hw/sd/allwinner-sdhost.h"
 #include "hw/ide/ahci.h"
 #include "hw/usb/hcd-ohci.h"
 #include "hw/usb/hcd-ehci.h"
@@ -XXX,XX +XXX,XX @@ typedef struct AwA10State {
     AwA10PICState intc;
     AwEmacState emac;
     AllwinnerAHCIState sata;
+    AwSdHostState mmc0;
     MemoryRegion sram_a;
     EHCISysBusState ehci[AW_A10_NUM_USB];
     OHCISysBusState ohci[AW_A10_NUM_USB];
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/misc/allwinner-cpucfg.h"
 #include "hw/misc/allwinner-h3-sysctrl.h"
 #include "hw/misc/allwinner-sid.h"
+#include "hw/sd/allwinner-sdhost.h"
 #include "target/arm/cpu.h"
 
 /**
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_SRAM_A2,
     AW_H3_SRAM_C,
     AW_H3_SYSCTRL,
+    AW_H3_MMC0,
     AW_H3_SID,
     AW_H3_EHCI0,
     AW_H3_OHCI0,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
     AwCpuCfgState cpucfg;
     AwH3SysCtrlState sysctrl;
     AwSidState sid;
+    AwSdHostState mmc0;
     GICState gic;
     MemoryRegion sram_a1;
     MemoryRegion sram_a2;
diff --git a/include/hw/sd/allwinner-sdhost.h b/include/hw/sd/allwinner-sdhost.h
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/include/hw/sd/allwinner-sdhost.h
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner (sun4i and above) SD Host Controller emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_SD_ALLWINNER_SDHOST_H
+#define HW_SD_ALLWINNER_SDHOST_H
+
+#include "qom/object.h"
+#include "hw/sysbus.h"
+#include "hw/sd/sd.h"
+
+/**
+ * Object model types
+ * @{
+ */
+
+/** Generic Allwinner SD Host Controller (abstract) */
+#define TYPE_AW_SDHOST "allwinner-sdhost"
+
+/** Allwinner sun4i family (A10, A12) */
+#define TYPE_AW_SDHOST_SUN4I TYPE_AW_SDHOST "-sun4i"
+
+/** Allwinner sun5i family and newer (A13, H2+, H3, etc) */
+#define TYPE_AW_SDHOST_SUN5I TYPE_AW_SDHOST "-sun5i"
+
+/** @} */
+
+/**
+ * Object model macros
+ * @{
+ */
+
+#define AW_SDHOST(obj) \
+    OBJECT_CHECK(AwSdHostState, (obj), TYPE_AW_SDHOST)
+#define AW_SDHOST_CLASS(klass) \
+     OBJECT_CLASS_CHECK(AwSdHostClass, (klass), TYPE_AW_SDHOST)
+#define AW_SDHOST_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(AwSdHostClass, (obj), TYPE_AW_SDHOST)
+
+/** @} */
+
+/**
+ * Allwinner SD Host Controller object instance state.
+ */
+typedef struct AwSdHostState {
+    /*< private >*/
+    SysBusDevice busdev;
+    /*< public >*/
+
+    /** Secure Digital (SD) bus, which connects to SD card (if present) */
+    SDBus sdbus;
+
+    /** Maps I/O registers in physical memory */
+    MemoryRegion iomem;
+
+    /** Interrupt output signal to notify CPU */
+    qemu_irq irq;
+
+    /** Number of bytes left in current DMA transfer */
+    uint32_t transfer_cnt;
+
+    /**
+     * @name Hardware Registers
+     * @{
+     */
+
+    uint32_t global_ctl;        /**< Global Control */
+    uint32_t clock_ctl;         /**< Clock Control */
+    uint32_t timeout;           /**< Timeout */
+    uint32_t bus_width;         /**< Bus Width */
+    uint32_t block_size;        /**< Block Size */
+    uint32_t byte_count;        /**< Byte Count */
+
+    uint32_t command;           /**< Command */
+    uint32_t command_arg;       /**< Command Argument */
+    uint32_t response[4];       /**< Command Response */
+
+    uint32_t irq_mask;          /**< Interrupt Mask */
+    uint32_t irq_status;        /**< Raw Interrupt Status */
+    uint32_t status;            /**< Status */
+
+    uint32_t fifo_wlevel;       /**< FIFO Water Level */
+    uint32_t fifo_func_sel;     /**< FIFO Function Select */
+    uint32_t debug_enable;      /**< Debug Enable */
+    uint32_t auto12_arg;        /**< Auto Command 12 Argument */
+    uint32_t newtiming_set;     /**< SD New Timing Set */
+    uint32_t newtiming_debug;   /**< SD New Timing Debug */
+    uint32_t hardware_rst;      /**< Hardware Reset */
+    uint32_t dmac;              /**< Internal DMA Controller Control */
+    uint32_t desc_base;         /**< Descriptor List Base Address */
+    uint32_t dmac_status;       /**< Internal DMA Controller Status */
+    uint32_t dmac_irq;          /**< Internal DMA Controller IRQ Enable */
+    uint32_t card_threshold;    /**< Card Threshold Control */
+    uint32_t startbit_detect;   /**< eMMC DDR Start Bit Detection Control */
+    uint32_t response_crc;      /**< Response CRC */
+    uint32_t data_crc[8];       /**< Data CRC */
+    uint32_t status_crc;        /**< Status CRC */
+
+    /** @} */
+
+} AwSdHostState;
+
+/**
+ * Allwinner SD Host Controller class-level struct.
+ *
+ * This struct is filled by each sunxi device specific code
+ * such that the generic code can use this struct to support
+ * all devices.
+ */
+typedef struct AwSdHostClass {
+    /*< private >*/
+    SysBusDeviceClass parent_class;
+    /*< public >*/
+
+    /** Maximum buffer size in bytes per DMA descriptor */
+    size_t max_desc_size;
+
+} AwSdHostClass;
+
+#endif /* HW_SD_ALLWINNER_SDHOST_H */
diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-a10.c
+++ b/hw/arm/allwinner-a10.c
@@ -XXX,XX +XXX,XX @@
 #include "hw/boards.h"
 #include "hw/usb/hcd-ohci.h"
 
+#define AW_A10_MMC0_BASE        0x01c0f000
 #define AW_A10_PIC_REG_BASE     0x01c20400
 #define AW_A10_PIT_REG_BASE     0x01c20c00
 #define AW_A10_UART0_REG_BASE   0x01c28000
@@ -XXX,XX +XXX,XX @@ static void aw_a10_init(Object *obj)
                                   sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI);
         }
     }
+
+    sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
+                          TYPE_AW_SDHOST_SUN4I);
 }
 
 static void aw_a10_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
                                qdev_get_gpio_in(dev, 64 + i));
         }
     }
+
+    /* SD/MMC */
+    qdev_init_nofail(DEVICE(&s->mmc0));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, AW_A10_MMC0_BASE);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0, qdev_get_gpio_in(dev, 32));
+    object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
+                              "sd-bus", &error_abort);
 }
 
 static void aw_a10_class_init(ObjectClass *oc, void *data)
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_SRAM_A2]    = 0x00044000,
     [AW_H3_SRAM_C]     = 0x00010000,
     [AW_H3_SYSCTRL]    = 0x01c00000,
+    [AW_H3_MMC0]       = 0x01c0f000,
     [AW_H3_SID]        = 0x01c14000,
     [AW_H3_EHCI0]      = 0x01c1a000,
     [AW_H3_OHCI0]      = 0x01c1a400,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
     { "lcd0",      0x01c0c000, 4 * KiB },
     { "lcd1",      0x01c0d000, 4 * KiB },
     { "ve",        0x01c0e000, 4 * KiB },
-    { "mmc0",      0x01c0f000, 4 * KiB },
     { "mmc1",      0x01c10000, 4 * KiB },
     { "mmc2",      0x01c11000, 4 * KiB },
     { "crypto",    0x01c15000, 4 * KiB },
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_GIC_SPI_UART3     =  3,
     AW_H3_GIC_SPI_TIMER0    = 18,
     AW_H3_GIC_SPI_TIMER1    = 19,
+    AW_H3_GIC_SPI_MMC0      = 60,
     AW_H3_GIC_SPI_EHCI0     = 72,
     AW_H3_GIC_SPI_OHCI0     = 73,
     AW_H3_GIC_SPI_EHCI1     = 74,
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
                           TYPE_AW_SID);
     object_property_add_alias(obj, "identifier", OBJECT(&s->sid),
                               "identifier", &error_abort);
+
+    sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
+                          TYPE_AW_SDHOST_SUN5I);
 }
 
 static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
     qdev_init_nofail(DEVICE(&s->sid));
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->sid), 0, s->memmap[AW_H3_SID]);
 
+    /* SD/MMC */
+    qdev_init_nofail(DEVICE(&s->mmc0));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, s->memmap[AW_H3_MMC0]);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0,
+                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_MMC0));
+
+    object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
+                              "sd-bus", &error_abort);
+
     /* Universal Serial Bus */
     sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
                          qdev_get_gpio_in(DEVICE(&s->gic),
diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/cubieboard.c
+++ b/hw/arm/cubieboard.c
@@ -XXX,XX +XXX,XX @@
 #include "sysemu/sysemu.h"
 #include "hw/sysbus.h"
 #include "hw/boards.h"
+#include "hw/qdev-properties.h"
 #include "hw/arm/allwinner-a10.h"
 
 static struct arm_boot_info cubieboard_binfo = {
@@ -XXX,XX +XXX,XX @@ static void cubieboard_init(MachineState *machine)
 {
     AwA10State *a10;
     Error *err = NULL;
+    DriveInfo *di;
+    BlockBackend *blk;
+    BusState *bus;
+    DeviceState *carddev;
 
     /* BIOS is not supported by this board */
     if (bios_name) {
@@ -XXX,XX +XXX,XX @@ static void cubieboard_init(MachineState *machine)
         exit(1);
     }
 
+    /* Retrieve SD bus */
+    di = drive_get_next(IF_SD);
+    blk = di ? blk_by_legacy_dinfo(di) : NULL;
+    bus = qdev_get_child_bus(DEVICE(a10), "sd-bus");
+
+    /* Plug in SD card */
+    carddev = qdev_create(bus, TYPE_SD_CARD);
+    qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
+    object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
+
     memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE,
                                 machine->ram);
 
diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/orangepi.c
+++ b/hw/arm/orangepi.c
@@ -XXX,XX +XXX,XX @@ static struct arm_boot_info orangepi_binfo = {
 static void orangepi_init(MachineState *machine)
 {
     AwH3State *h3;
+    DriveInfo *di;
+    BlockBackend *blk;
+    BusState *bus;
+    DeviceState *carddev;
 
     /* BIOS is not supported by this board */
     if (bios_name) {
@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
     /* Mark H3 object realized */
     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
 
+    /* Retrieve SD bus */
+    di = drive_get_next(IF_SD);
+    blk = di ? blk_by_legacy_dinfo(di) : NULL;
+    bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
+
+    /* Plug in SD card */
+    carddev = qdev_create(bus, TYPE_SD_CARD);
+    qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
+    object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
+
     /* SDRAM */
     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
                                 machine->ram);
@@ -XXX,XX +XXX,XX @@ static void orangepi_machine_init(MachineClass *mc)
 {
     mc->desc = "Orange Pi PC";
     mc->init = orangepi_init;
+    mc->block_default_type = IF_SD;
+    mc->units_per_default_bus = 1;
     mc->min_cpus = AW_H3_NUM_CPUS;
     mc->max_cpus = AW_H3_NUM_CPUS;
     mc->default_cpus = AW_H3_NUM_CPUS;
diff --git a/hw/sd/allwinner-sdhost.c b/hw/sd/allwinner-sdhost.c
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/sd/allwinner-sdhost.c
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner (sun4i and above) SD Host Controller emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qemu/units.h"
+#include "sysemu/blockdev.h"
+#include "hw/irq.h"
+#include "hw/sd/allwinner-sdhost.h"
+#include "migration/vmstate.h"
+#include "trace.h"
+
+#define TYPE_AW_SDHOST_BUS "allwinner-sdhost-bus"
+#define AW_SDHOST_BUS(obj) \
+    OBJECT_CHECK(SDBus, (obj), TYPE_AW_SDHOST_BUS)
+
+/* SD Host register offsets */
+enum {
+    REG_SD_GCTL       = 0x00,  /* Global Control */
+    REG_SD_CKCR       = 0x04,  /* Clock Control */
+    REG_SD_TMOR       = 0x08,  /* Timeout */
+    REG_SD_BWDR       = 0x0C,  /* Bus Width */
+    REG_SD_BKSR       = 0x10,  /* Block Size */
+    REG_SD_BYCR       = 0x14,  /* Byte Count */
+    REG_SD_CMDR       = 0x18,  /* Command */
+    REG_SD_CAGR       = 0x1C,  /* Command Argument */
+    REG_SD_RESP0      = 0x20,  /* Response Zero */
+    REG_SD_RESP1      = 0x24,  /* Response One */
+    REG_SD_RESP2      = 0x28,  /* Response Two */
+    REG_SD_RESP3      = 0x2C,  /* Response Three */
+    REG_SD_IMKR       = 0x30,  /* Interrupt Mask */
+    REG_SD_MISR       = 0x34,  /* Masked Interrupt Status */
+    REG_SD_RISR       = 0x38,  /* Raw Interrupt Status */
+    REG_SD_STAR       = 0x3C,  /* Status */
+    REG_SD_FWLR       = 0x40,  /* FIFO Water Level */
+    REG_SD_FUNS       = 0x44,  /* FIFO Function Select */
+    REG_SD_DBGC       = 0x50,  /* Debug Enable */
+    REG_SD_A12A       = 0x58,  /* Auto command 12 argument */
+    REG_SD_NTSR       = 0x5C,  /* SD NewTiming Set */
+    REG_SD_SDBG       = 0x60,  /* SD newTiming Set Debug */
+    REG_SD_HWRST      = 0x78,  /* Hardware Reset Register */
+    REG_SD_DMAC       = 0x80,  /* Internal DMA Controller Control */
+    REG_SD_DLBA       = 0x84,  /* Descriptor List Base Address */
+    REG_SD_IDST       = 0x88,  /* Internal DMA Controller Status */
+    REG_SD_IDIE       = 0x8C,  /* Internal DMA Controller IRQ Enable */
+    REG_SD_THLDC      = 0x100, /* Card Threshold Control */
+    REG_SD_DSBD       = 0x10C, /* eMMC DDR Start Bit Detection Control */
+    REG_SD_RES_CRC    = 0x110, /* Response CRC from card/eMMC */
+    REG_SD_DATA7_CRC  = 0x114, /* CRC Data 7 from card/eMMC */
+    REG_SD_DATA6_CRC  = 0x118, /* CRC Data 6 from card/eMMC */
+    REG_SD_DATA5_CRC  = 0x11C, /* CRC Data 5 from card/eMMC */
+    REG_SD_DATA4_CRC  = 0x120, /* CRC Data 4 from card/eMMC */
+    REG_SD_DATA3_CRC  = 0x124, /* CRC Data 3 from card/eMMC */
+    REG_SD_DATA2_CRC  = 0x128, /* CRC Data 2 from card/eMMC */
+    REG_SD_DATA1_CRC  = 0x12C, /* CRC Data 1 from card/eMMC */
+    REG_SD_DATA0_CRC  = 0x130, /* CRC Data 0 from card/eMMC */
+    REG_SD_CRC_STA    = 0x134, /* CRC status from card/eMMC during write */
+    REG_SD_FIFO       = 0x200, /* Read/Write FIFO */
+};
+
+/* SD Host register flags */
+enum {
+    SD_GCTL_FIFO_AC_MOD     = (1 << 31),
+    SD_GCTL_DDR_MOD_SEL     = (1 << 10),
+    SD_GCTL_CD_DBC_ENB      = (1 << 8),
+    SD_GCTL_DMA_ENB         = (1 << 5),
+    SD_GCTL_INT_ENB         = (1 << 4),
+    SD_GCTL_DMA_RST         = (1 << 2),
+    SD_GCTL_FIFO_RST        = (1 << 1),
+    SD_GCTL_SOFT_RST        = (1 << 0),
+};
+
+enum {
+    SD_CMDR_LOAD            = (1 << 31),
+    SD_CMDR_CLKCHANGE       = (1 << 21),
+    SD_CMDR_WRITE           = (1 << 10),
+    SD_CMDR_AUTOSTOP        = (1 << 12),
+    SD_CMDR_DATA            = (1 << 9),
+    SD_CMDR_RESPONSE_LONG   = (1 << 7),
+    SD_CMDR_RESPONSE        = (1 << 6),
+    SD_CMDR_CMDID_MASK      = (0x3f),
+};
+
+enum {
+    SD_RISR_CARD_REMOVE     = (1 << 31),
+    SD_RISR_CARD_INSERT     = (1 << 30),
+    SD_RISR_SDIO_INTR       = (1 << 16),
+    SD_RISR_AUTOCMD_DONE    = (1 << 14),
+    SD_RISR_DATA_COMPLETE   = (1 << 3),
+    SD_RISR_CMD_COMPLETE    = (1 << 2),
+    SD_RISR_NO_RESPONSE     = (1 << 1),
+};
+
+enum {
+    SD_STAR_CARD_PRESENT    = (1 << 8),
+};
+
+enum {
+    SD_IDST_INT_SUMMARY     = (1 << 8),
+    SD_IDST_RECEIVE_IRQ     = (1 << 1),
+    SD_IDST_TRANSMIT_IRQ    = (1 << 0),
+    SD_IDST_IRQ_MASK        = (1 << 1) | (1 << 0) | (1 << 8),
+    SD_IDST_WR_MASK         = (0x3ff),
+};
+
+/* SD Host register reset values */
+enum {
+    REG_SD_GCTL_RST         = 0x00000300,
+    REG_SD_CKCR_RST         = 0x0,
+    REG_SD_TMOR_RST         = 0xFFFFFF40,
+    REG_SD_BWDR_RST         = 0x0,
+    REG_SD_BKSR_RST         = 0x00000200,
+    REG_SD_BYCR_RST         = 0x00000200,
+    REG_SD_CMDR_RST         = 0x0,
+    REG_SD_CAGR_RST         = 0x0,
+    REG_SD_RESP_RST         = 0x0,
+    REG_SD_IMKR_RST         = 0x0,
+    REG_SD_MISR_RST         = 0x0,
+    REG_SD_RISR_RST         = 0x0,
+    REG_SD_STAR_RST         = 0x00000100,
+    REG_SD_FWLR_RST         = 0x000F0000,
+    REG_SD_FUNS_RST         = 0x0,
+    REG_SD_DBGC_RST         = 0x0,
+    REG_SD_A12A_RST         = 0x0000FFFF,
+    REG_SD_NTSR_RST         = 0x00000001,
+    REG_SD_SDBG_RST         = 0x0,
+    REG_SD_HWRST_RST        = 0x00000001,
+    REG_SD_DMAC_RST         = 0x0,
+    REG_SD_DLBA_RST         = 0x0,
+    REG_SD_IDST_RST         = 0x0,
+    REG_SD_IDIE_RST         = 0x0,
+    REG_SD_THLDC_RST        = 0x0,
+    REG_SD_DSBD_RST         = 0x0,
+    REG_SD_RES_CRC_RST      = 0x0,
+    REG_SD_DATA_CRC_RST     = 0x0,
+    REG_SD_CRC_STA_RST      = 0x0,
+    REG_SD_FIFO_RST         = 0x0,
+};
+
+/* Data transfer descriptor for DMA */
+typedef struct TransferDescriptor {
+    uint32_t status; /* Status flags */
+    uint32_t size;   /* Data buffer size */
+    uint32_t addr;   /* Data buffer address */
+    uint32_t next;   /* Physical address of next descriptor */
+} TransferDescriptor;
+
+/* Data transfer descriptor flags */
+enum {
+    DESC_STATUS_HOLD   = (1 << 31), /* Set when descriptor is in use by DMA */
+    DESC_STATUS_ERROR  = (1 << 30), /* Set when DMA transfer error occurred */
+    DESC_STATUS_CHAIN  = (1 << 4),  /* Indicates chained descriptor. */
+    DESC_STATUS_FIRST  = (1 << 3),  /* Set on the first descriptor */
+    DESC_STATUS_LAST   = (1 << 2),  /* Set on the last descriptor */
+    DESC_STATUS_NOIRQ  = (1 << 1),  /* Skip raising interrupt after transfer */
+    DESC_SIZE_MASK     = (0xfffffffc)
+};
+
+static void allwinner_sdhost_update_irq(AwSdHostState *s)
+{
+    uint32_t irq;
+
+    if (s->global_ctl & SD_GCTL_INT_ENB) {
+        irq = s->irq_status & s->irq_mask;
+    } else {
+        irq = 0;
+    }
+
+    trace_allwinner_sdhost_update_irq(irq);
+    qemu_set_irq(s->irq, irq);
+}
+
+static void allwinner_sdhost_update_transfer_cnt(AwSdHostState *s,
+                                                 uint32_t bytes)
+{
+    if (s->transfer_cnt > bytes) {
+        s->transfer_cnt -= bytes;
+    } else {
+        s->transfer_cnt = 0;
+    }
+
+    if (!s->transfer_cnt) {
+        s->irq_status |= SD_RISR_DATA_COMPLETE;
+    }
+}
+
+static void allwinner_sdhost_set_inserted(DeviceState *dev, bool inserted)
+{
+    AwSdHostState *s = AW_SDHOST(dev);
+
+    trace_allwinner_sdhost_set_inserted(inserted);
+
+    if (inserted) {
+        s->irq_status |= SD_RISR_CARD_INSERT;
+        s->irq_status &= ~SD_RISR_CARD_REMOVE;
+        s->status |= SD_STAR_CARD_PRESENT;
+    } else {
+        s->irq_status &= ~SD_RISR_CARD_INSERT;
+        s->irq_status |= SD_RISR_CARD_REMOVE;
+        s->status &= ~SD_STAR_CARD_PRESENT;
+    }
+
+    allwinner_sdhost_update_irq(s);
+}
+
+static void allwinner_sdhost_send_command(AwSdHostState *s)
+{
+    SDRequest request;
+    uint8_t resp[16];
+    int rlen;
+
+    /* Auto clear load flag */
+    s->command &= ~SD_CMDR_LOAD;
+
+    /* Clock change does not actually interact with the SD bus */
+    if (!(s->command & SD_CMDR_CLKCHANGE)) {
+
+        /* Prepare request */
+        request.cmd = s->command & SD_CMDR_CMDID_MASK;
+        request.arg = s->command_arg;
+
+        /* Send request to SD bus */
+        rlen = sdbus_do_command(&s->sdbus, &request, resp);
+        if (rlen < 0) {
+            goto error;
+        }
+
+        /* If the command has a response, store it in the response registers */
+        if ((s->command & SD_CMDR_RESPONSE)) {
+            if (rlen == 4 && !(s->command & SD_CMDR_RESPONSE_LONG)) {
+                s->response[0] = ldl_be_p(&resp[0]);
+                s->response[1] = s->response[2] = s->response[3] = 0;
+
+            } else if (rlen == 16 && (s->command & SD_CMDR_RESPONSE_LONG)) {
+                s->response[0] = ldl_be_p(&resp[12]);
+                s->response[1] = ldl_be_p(&resp[8]);
+                s->response[2] = ldl_be_p(&resp[4]);
+                s->response[3] = ldl_be_p(&resp[0]);
+            } else {
+                goto error;
+            }
+        }
+    }
+
+    /* Set interrupt status bits */
+    s->irq_status |= SD_RISR_CMD_COMPLETE;
+    return;
+
+error:
+    s->irq_status |= SD_RISR_NO_RESPONSE;
+}
+
+static void allwinner_sdhost_auto_stop(AwSdHostState *s)
+{
+    /*
+     * The stop command (CMD12) ensures the SD bus
+     * returns to the transfer state.
+     */
+    if ((s->command & SD_CMDR_AUTOSTOP) && (s->transfer_cnt == 0)) {
+        /* First save current command registers */
+        uint32_t saved_cmd = s->command;
+        uint32_t saved_arg = s->command_arg;
+
+        /* Prepare stop command (CMD12) */
+        s->command &= ~SD_CMDR_CMDID_MASK;
+        s->command |= 12; /* CMD12 */
+        s->command_arg = 0;
+
+        /* Put the command on SD bus */
+        allwinner_sdhost_send_command(s);
+
+        /* Restore command values */
+        s->command = saved_cmd;
+        s->command_arg = saved_arg;
+
+        /* Set IRQ status bit for automatic stop done */
+        s->irq_status |= SD_RISR_AUTOCMD_DONE;
+    }
+}
+
+static uint32_t allwinner_sdhost_process_desc(AwSdHostState *s,
+                                              hwaddr desc_addr,
+                                              TransferDescriptor *desc,
+                                              bool is_write, uint32_t max_bytes)
+{
+    AwSdHostClass *klass = AW_SDHOST_GET_CLASS(s);
+    uint32_t num_done = 0;
+    uint32_t num_bytes = max_bytes;
+    uint8_t buf[1024];
+
+    /* Read descriptor */
+    cpu_physical_memory_read(desc_addr, desc, sizeof(*desc));
+    if (desc->size == 0) {
+        desc->size = klass->max_desc_size;
+    } else if (desc->size > klass->max_desc_size) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: DMA descriptor buffer size "
+                      " is out-of-bounds: %" PRIu32 " > %zu",
+                      __func__, desc->size, klass->max_desc_size);
+        desc->size = klass->max_desc_size;
+    }
+    if (desc->size < num_bytes) {
+        num_bytes = desc->size;
+    }
+
+    trace_allwinner_sdhost_process_desc(desc_addr, desc->size,
+                                        is_write, max_bytes);
+
+    while (num_done < num_bytes) {
+        /* Try to completely fill the local buffer */
+        uint32_t buf_bytes = num_bytes - num_done;
+        if (buf_bytes > sizeof(buf)) {
+            buf_bytes = sizeof(buf);
+        }
+
+        /* Write to SD bus */
+        if (is_write) {
+            cpu_physical_memory_read((desc->addr & DESC_SIZE_MASK) + num_done,
+                                      buf, buf_bytes);
+
+            for (uint32_t i = 0; i < buf_bytes; i++) {
+                sdbus_write_data(&s->sdbus, buf[i]);
+            }
+
+        /* Read from SD bus */
+        } else {
+            for (uint32_t i = 0; i < buf_bytes; i++) {
+                buf[i] = sdbus_read_data(&s->sdbus);
+            }
+            cpu_physical_memory_write((desc->addr & DESC_SIZE_MASK) + num_done,
+                                       buf, buf_bytes);
+        }
+        num_done += buf_bytes;
+    }
+
+    /* Clear hold flag and flush descriptor */
+    desc->status &= ~DESC_STATUS_HOLD;
+    cpu_physical_memory_write(desc_addr, desc, sizeof(*desc));
+
+    return num_done;
+}
+
+static void allwinner_sdhost_dma(AwSdHostState *s)
+{
+    TransferDescriptor desc;
+    hwaddr desc_addr = s->desc_base;
+    bool is_write = (s->command & SD_CMDR_WRITE);
+    uint32_t bytes_done = 0;
+
+    /* Check if DMA can be performed */
+    if (s->byte_count == 0 || s->block_size == 0 ||
+      !(s->global_ctl & SD_GCTL_DMA_ENB)) {
+        return;
+    }
+
+    /*
+     * For read operations, data must be available on the SD bus
+     * If not, it is an error and we should not act at all
+     */
+    if (!is_write && !sdbus_data_ready(&s->sdbus)) {
+        return;
+    }
+
+    /* Process the DMA descriptors until all data is copied */
+    while (s->byte_count > 0) {
+        bytes_done = allwinner_sdhost_process_desc(s, desc_addr, &desc,
+                                                   is_write, s->byte_count);
+        allwinner_sdhost_update_transfer_cnt(s, bytes_done);
+
+        if (bytes_done <= s->byte_count) {
+            s->byte_count -= bytes_done;
+        } else {
+            s->byte_count = 0;
+        }
+
+        if (desc.status & DESC_STATUS_LAST) {
+            break;
+        } else {
+            desc_addr = desc.next;
+        }
+    }
+
+    /* Raise IRQ to signal DMA is completed */
+    s->irq_status |= SD_RISR_DATA_COMPLETE | SD_RISR_SDIO_INTR;
+
+    /* Update DMAC bits */
+    s->dmac_status |= SD_IDST_INT_SUMMARY;
+
+    if (is_write) {
+        s->dmac_status |= SD_IDST_TRANSMIT_IRQ;
+    } else {
+        s->dmac_status |= SD_IDST_RECEIVE_IRQ;
+    }
+}
+
+static uint64_t allwinner_sdhost_read(void *opaque, hwaddr offset,
+                                      unsigned size)
+{
+    AwSdHostState *s = AW_SDHOST(opaque);
+    uint32_t res = 0;
+
+    switch (offset) {
+    case REG_SD_GCTL:      /* Global Control */
+        res = s->global_ctl;
+        break;
+    case REG_SD_CKCR:      /* Clock Control */
+        res = s->clock_ctl;
+        break;
+    case REG_SD_TMOR:      /* Timeout */
+        res = s->timeout;
+        break;
+    case REG_SD_BWDR:      /* Bus Width */
+        res = s->bus_width;
+        break;
+    case REG_SD_BKSR:      /* Block Size */
+        res = s->block_size;
+        break;
+    case REG_SD_BYCR:      /* Byte Count */
+        res = s->byte_count;
+        break;
+    case REG_SD_CMDR:      /* Command */
+        res = s->command;
+        break;
+    case REG_SD_CAGR:      /* Command Argument */
+        res = s->command_arg;
+        break;
+    case REG_SD_RESP0:     /* Response Zero */
+        res = s->response[0];
+        break;
+    case REG_SD_RESP1:     /* Response One */
+        res = s->response[1];
+        break;
+    case REG_SD_RESP2:     /* Response Two */
+        res = s->response[2];
+        break;
+    case REG_SD_RESP3:     /* Response Three */
+        res = s->response[3];
+        break;
+    case REG_SD_IMKR:      /* Interrupt Mask */
+        res = s->irq_mask;
+        break;
+    case REG_SD_MISR:      /* Masked Interrupt Status */
+        res = s->irq_status & s->irq_mask;
+        break;
+    case REG_SD_RISR:      /* Raw Interrupt Status */
+        res = s->irq_status;
+        break;
+    case REG_SD_STAR:      /* Status */
+        res = s->status;
+        break;
+    case REG_SD_FWLR:      /* FIFO Water Level */
+        res = s->fifo_wlevel;
+        break;
+    case REG_SD_FUNS:      /* FIFO Function Select */
+        res = s->fifo_func_sel;
+        break;
+    case REG_SD_DBGC:      /* Debug Enable */
+        res = s->debug_enable;
+        break;
+    case REG_SD_A12A:      /* Auto command 12 argument */
+        res = s->auto12_arg;
+        break;
+    case REG_SD_NTSR:      /* SD NewTiming Set */
+        res = s->newtiming_set;
+        break;
+    case REG_SD_SDBG:      /* SD newTiming Set Debug */
+        res = s->newtiming_debug;
+        break;
+    case REG_SD_HWRST:     /* Hardware Reset Register */
+        res = s->hardware_rst;
+        break;
+    case REG_SD_DMAC:      /* Internal DMA Controller Control */
+        res = s->dmac;
+        break;
+    case REG_SD_DLBA:      /* Descriptor List Base Address */
+        res = s->desc_base;
+        break;
+    case REG_SD_IDST:      /* Internal DMA Controller Status */
+        res = s->dmac_status;
+        break;
+    case REG_SD_IDIE:      /* Internal DMA Controller Interrupt Enable */
+        res = s->dmac_irq;
+        break;
+    case REG_SD_THLDC:     /* Card Threshold Control */
+        res = s->card_threshold;
+        break;
+    case REG_SD_DSBD:      /* eMMC DDR Start Bit Detection Control */
+        res = s->startbit_detect;
+        break;
+    case REG_SD_RES_CRC:   /* Response CRC from card/eMMC */
+        res = s->response_crc;
+        break;
+    case REG_SD_DATA7_CRC: /* CRC Data 7 from card/eMMC */
+    case REG_SD_DATA6_CRC: /* CRC Data 6 from card/eMMC */
+    case REG_SD_DATA5_CRC: /* CRC Data 5 from card/eMMC */
+    case REG_SD_DATA4_CRC: /* CRC Data 4 from card/eMMC */
+    case REG_SD_DATA3_CRC: /* CRC Data 3 from card/eMMC */
+    case REG_SD_DATA2_CRC: /* CRC Data 2 from card/eMMC */
+    case REG_SD_DATA1_CRC: /* CRC Data 1 from card/eMMC */
+    case REG_SD_DATA0_CRC: /* CRC Data 0 from card/eMMC */
+        res = s->data_crc[((offset - REG_SD_DATA7_CRC) / sizeof(uint32_t))];
+        break;
+    case REG_SD_CRC_STA:   /* CRC status from card/eMMC in write operation */
+        res = s->status_crc;
+        break;
+    case REG_SD_FIFO:      /* Read/Write FIFO */
+        if (sdbus_data_ready(&s->sdbus)) {
+            res = sdbus_read_data(&s->sdbus);
+            res |= sdbus_read_data(&s->sdbus) << 8;
+            res |= sdbus_read_data(&s->sdbus) << 16;
+            res |= sdbus_read_data(&s->sdbus) << 24;
+            allwinner_sdhost_update_transfer_cnt(s, sizeof(uint32_t));
+            allwinner_sdhost_auto_stop(s);
+            allwinner_sdhost_update_irq(s);
+        } else {
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: no data ready on SD bus\n",
+                          __func__);
+        }
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset %"
+                      HWADDR_PRIx"\n", __func__, offset);
+        res = 0;
+        break;
+    }
+
+    trace_allwinner_sdhost_read(offset, res, size);
+    return res;
+}
+
+static void allwinner_sdhost_write(void *opaque, hwaddr offset,
+                                   uint64_t value, unsigned size)
+{
+    AwSdHostState *s = AW_SDHOST(opaque);
+
+    trace_allwinner_sdhost_write(offset, value, size);
+
+    switch (offset) {
+    case REG_SD_GCTL:      /* Global Control */
+        s->global_ctl = value;
+        s->global_ctl &= ~(SD_GCTL_DMA_RST | SD_GCTL_FIFO_RST |
+                           SD_GCTL_SOFT_RST);
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_CKCR:      /* Clock Control */
+        s->clock_ctl = value;
+        break;
+    case REG_SD_TMOR:      /* Timeout */
+        s->timeout = value;
+        break;
+    case REG_SD_BWDR:      /* Bus Width */
+        s->bus_width = value;
+        break;
+    case REG_SD_BKSR:      /* Block Size */
+        s->block_size = value;
+        break;
+    case REG_SD_BYCR:      /* Byte Count */
+        s->byte_count = value;
+        s->transfer_cnt = value;
+        break;
+    case REG_SD_CMDR:      /* Command */
+        s->command = value;
+        if (value & SD_CMDR_LOAD) {
+            allwinner_sdhost_send_command(s);
+            allwinner_sdhost_dma(s);
+            allwinner_sdhost_auto_stop(s);
+        }
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_CAGR:      /* Command Argument */
+        s->command_arg = value;
+        break;
+    case REG_SD_RESP0:     /* Response Zero */
+        s->response[0] = value;
+        break;
+    case REG_SD_RESP1:     /* Response One */
+        s->response[1] = value;
+        break;
+    case REG_SD_RESP2:     /* Response Two */
+        s->response[2] = value;
+        break;
+    case REG_SD_RESP3:     /* Response Three */
+        s->response[3] = value;
+        break;
+    case REG_SD_IMKR:      /* Interrupt Mask */
+        s->irq_mask = value;
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_MISR:      /* Masked Interrupt Status */
+    case REG_SD_RISR:      /* Raw Interrupt Status */
+        s->irq_status &= ~value;
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_STAR:      /* Status */
+        s->status &= ~value;
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_FWLR:      /* FIFO Water Level */
+        s->fifo_wlevel = value;
+        break;
+    case REG_SD_FUNS:      /* FIFO Function Select */
+        s->fifo_func_sel = value;
+        break;
+    case REG_SD_DBGC:      /* Debug Enable */
+        s->debug_enable = value;
+        break;
+    case REG_SD_A12A:      /* Auto command 12 argument */
+        s->auto12_arg = value;
+        break;
+    case REG_SD_NTSR:      /* SD NewTiming Set */
+        s->newtiming_set = value;
+        break;
+    case REG_SD_SDBG:      /* SD newTiming Set Debug */
+        s->newtiming_debug = value;
+        break;
+    case REG_SD_HWRST:     /* Hardware Reset Register */
+        s->hardware_rst = value;
+        break;
+    case REG_SD_DMAC:      /* Internal DMA Controller Control */
+        s->dmac = value;
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_DLBA:      /* Descriptor List Base Address */
+        s->desc_base = value;
+        break;
+    case REG_SD_IDST:      /* Internal DMA Controller Status */
+        s->dmac_status &= (~SD_IDST_WR_MASK) | (~value & SD_IDST_WR_MASK);
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_IDIE:      /* Internal DMA Controller Interrupt Enable */
+        s->dmac_irq = value;
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_THLDC:     /* Card Threshold Control */
+        s->card_threshold = value;
+        break;
+    case REG_SD_DSBD:      /* eMMC DDR Start Bit Detection Control */
+        s->startbit_detect = value;
+        break;
+    case REG_SD_FIFO:      /* Read/Write FIFO */
+        sdbus_write_data(&s->sdbus, value & 0xff);
+        sdbus_write_data(&s->sdbus, (value >> 8) & 0xff);
+        sdbus_write_data(&s->sdbus, (value >> 16) & 0xff);
+        sdbus_write_data(&s->sdbus, (value >> 24) & 0xff);
+        allwinner_sdhost_update_transfer_cnt(s, sizeof(uint32_t));
+        allwinner_sdhost_auto_stop(s);
+        allwinner_sdhost_update_irq(s);
+        break;
+    case REG_SD_RES_CRC:   /* Response CRC from card/eMMC */
+    case REG_SD_DATA7_CRC: /* CRC Data 7 from card/eMMC */
+    case REG_SD_DATA6_CRC: /* CRC Data 6 from card/eMMC */
+    case REG_SD_DATA5_CRC: /* CRC Data 5 from card/eMMC */
+    case REG_SD_DATA4_CRC: /* CRC Data 4 from card/eMMC */
+    case REG_SD_DATA3_CRC: /* CRC Data 3 from card/eMMC */
+    case REG_SD_DATA2_CRC: /* CRC Data 2 from card/eMMC */
+    case REG_SD_DATA1_CRC: /* CRC Data 1 from card/eMMC */
+    case REG_SD_DATA0_CRC: /* CRC Data 0 from card/eMMC */
+    case REG_SD_CRC_STA:   /* CRC status from card/eMMC in write operation */
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset %"
+                      HWADDR_PRIx"\n", __func__, offset);
+        break;
+    }
+}
+
+static const MemoryRegionOps allwinner_sdhost_ops = {
+    .read = allwinner_sdhost_read,
+    .write = allwinner_sdhost_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static const VMStateDescription vmstate_allwinner_sdhost = {
+    .name = "allwinner-sdhost",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32(global_ctl, AwSdHostState),
+        VMSTATE_UINT32(clock_ctl, AwSdHostState),
+        VMSTATE_UINT32(timeout, AwSdHostState),
+        VMSTATE_UINT32(bus_width, AwSdHostState),
+        VMSTATE_UINT32(block_size, AwSdHostState),
+        VMSTATE_UINT32(byte_count, AwSdHostState),
+        VMSTATE_UINT32(transfer_cnt, AwSdHostState),
+        VMSTATE_UINT32(command, AwSdHostState),
+        VMSTATE_UINT32(command_arg, AwSdHostState),
+        VMSTATE_UINT32_ARRAY(response, AwSdHostState, 4),
+        VMSTATE_UINT32(irq_mask, AwSdHostState),
+        VMSTATE_UINT32(irq_status, AwSdHostState),
+        VMSTATE_UINT32(status, AwSdHostState),
+        VMSTATE_UINT32(fifo_wlevel, AwSdHostState),
+        VMSTATE_UINT32(fifo_func_sel, AwSdHostState),
+        VMSTATE_UINT32(debug_enable, AwSdHostState),
+        VMSTATE_UINT32(auto12_arg, AwSdHostState),
+        VMSTATE_UINT32(newtiming_set, AwSdHostState),
+        VMSTATE_UINT32(newtiming_debug, AwSdHostState),
+        VMSTATE_UINT32(hardware_rst, AwSdHostState),
+        VMSTATE_UINT32(dmac, AwSdHostState),
+        VMSTATE_UINT32(desc_base, AwSdHostState),
+        VMSTATE_UINT32(dmac_status, AwSdHostState),
+        VMSTATE_UINT32(dmac_irq, AwSdHostState),
+        VMSTATE_UINT32(card_threshold, AwSdHostState),
+        VMSTATE_UINT32(startbit_detect, AwSdHostState),
+        VMSTATE_UINT32(response_crc, AwSdHostState),
+        VMSTATE_UINT32_ARRAY(data_crc, AwSdHostState, 8),
+        VMSTATE_UINT32(status_crc, AwSdHostState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void allwinner_sdhost_init(Object *obj)
+{
+    AwSdHostState *s = AW_SDHOST(obj);
+
+    qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
+                         TYPE_AW_SDHOST_BUS, DEVICE(s), "sd-bus");
+
+    memory_region_init_io(&s->iomem, obj, &allwinner_sdhost_ops, s,
+                           TYPE_AW_SDHOST, 4 * KiB);
+    sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem);
+    sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq);
+}
+
+static void allwinner_sdhost_reset(DeviceState *dev)
+{
+    AwSdHostState *s = AW_SDHOST(dev);
+
+    s->global_ctl = REG_SD_GCTL_RST;
+    s->clock_ctl = REG_SD_CKCR_RST;
+    s->timeout = REG_SD_TMOR_RST;
+    s->bus_width = REG_SD_BWDR_RST;
+    s->block_size = REG_SD_BKSR_RST;
+    s->byte_count = REG_SD_BYCR_RST;
+    s->transfer_cnt = 0;
+
+    s->command = REG_SD_CMDR_RST;
+    s->command_arg = REG_SD_CAGR_RST;
+
+    for (int i = 0; i < ARRAY_SIZE(s->response); i++) {
+        s->response[i] = REG_SD_RESP_RST;
+    }
+
+    s->irq_mask = REG_SD_IMKR_RST;
+    s->irq_status = REG_SD_RISR_RST;
+    s->status = REG_SD_STAR_RST;
+
+    s->fifo_wlevel = REG_SD_FWLR_RST;
+    s->fifo_func_sel = REG_SD_FUNS_RST;
+    s->debug_enable = REG_SD_DBGC_RST;
+    s->auto12_arg = REG_SD_A12A_RST;
+    s->newtiming_set = REG_SD_NTSR_RST;
+    s->newtiming_debug = REG_SD_SDBG_RST;
+    s->hardware_rst = REG_SD_HWRST_RST;
+    s->dmac = REG_SD_DMAC_RST;
+    s->desc_base = REG_SD_DLBA_RST;
+    s->dmac_status = REG_SD_IDST_RST;
+    s->dmac_irq = REG_SD_IDIE_RST;
+    s->card_threshold = REG_SD_THLDC_RST;
+    s->startbit_detect = REG_SD_DSBD_RST;
+    s->response_crc = REG_SD_RES_CRC_RST;
+
+    for (int i = 0; i < ARRAY_SIZE(s->data_crc); i++) {
+        s->data_crc[i] = REG_SD_DATA_CRC_RST;
+    }
+
+    s->status_crc = REG_SD_CRC_STA_RST;
+}
+
+static void allwinner_sdhost_bus_class_init(ObjectClass *klass, void *data)
+{
+    SDBusClass *sbc = SD_BUS_CLASS(klass);
+
+    sbc->set_inserted = allwinner_sdhost_set_inserted;
+}
+
+static void allwinner_sdhost_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->reset = allwinner_sdhost_reset;
+    dc->vmsd = &vmstate_allwinner_sdhost;
+}
+
+static void allwinner_sdhost_sun4i_class_init(ObjectClass *klass, void *data)
+{
+    AwSdHostClass *sc = AW_SDHOST_CLASS(klass);
+    sc->max_desc_size = 8 * KiB;
+}
+
+static void allwinner_sdhost_sun5i_class_init(ObjectClass *klass, void *data)
+{
+    AwSdHostClass *sc = AW_SDHOST_CLASS(klass);
+    sc->max_desc_size = 64 * KiB;
+}
+
+static TypeInfo allwinner_sdhost_info = {
+    .name          = TYPE_AW_SDHOST,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_init = allwinner_sdhost_init,
+    .instance_size = sizeof(AwSdHostState),
+    .class_init    = allwinner_sdhost_class_init,
+    .class_size    = sizeof(AwSdHostClass),
+    .abstract      = true,
+};
+
+static const TypeInfo allwinner_sdhost_sun4i_info = {
+    .name          = TYPE_AW_SDHOST_SUN4I,
+    .parent        = TYPE_AW_SDHOST,
+    .class_init    = allwinner_sdhost_sun4i_class_init,
+};
+
+static const TypeInfo allwinner_sdhost_sun5i_info = {
+    .name          = TYPE_AW_SDHOST_SUN5I,
+    .parent        = TYPE_AW_SDHOST,
+    .class_init    = allwinner_sdhost_sun5i_class_init,
+};
+
+static const TypeInfo allwinner_sdhost_bus_info = {
+    .name = TYPE_AW_SDHOST_BUS,
+    .parent = TYPE_SD_BUS,
+    .instance_size = sizeof(SDBus),
+    .class_init = allwinner_sdhost_bus_class_init,
+};
+
+static void allwinner_sdhost_register_types(void)
+{
+    type_register_static(&allwinner_sdhost_info);
+    type_register_static(&allwinner_sdhost_sun4i_info);
+    type_register_static(&allwinner_sdhost_sun5i_info);
+    type_register_static(&allwinner_sdhost_bus_info);
+}
+
+type_init(allwinner_sdhost_register_types)
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -XXX,XX +XXX,XX @@ config ALLWINNER_H3
     select UNIMP
     select USB_OHCI
     select USB_EHCI_SYSBUS
+    select SD
 
 config RASPI
     bool
diff --git a/hw/sd/trace-events b/hw/sd/trace-events
index XXXXXXX..XXXXXXX 100644
--- a/hw/sd/trace-events
+++ b/hw/sd/trace-events
@@ -XXX,XX +XXX,XX @@
 # See docs/devel/tracing.txt for syntax documentation.
 
+# allwinner-sdhost.c
+allwinner_sdhost_set_inserted(bool inserted) "inserted %u"
+allwinner_sdhost_process_desc(uint64_t desc_addr, uint32_t desc_size, bool is_write, uint32_t max_bytes) "desc_addr 0x%" PRIx64 " desc_size %" PRIu32 " is_write %u max_bytes %" PRIu32
+allwinner_sdhost_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_sdhost_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_sdhost_update_irq(uint32_t irq) "IRQ bits 0x%" PRIx32
+
 # bcm2835_sdhost.c
 bcm2835_sdhost_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
 bcm2835_sdhost_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Allwinner Sun8i System on Chip family includes an Ethernet MAC (EMAC)
which provides 10M/100M/1000M Ethernet connectivity. This commit
adds support for the Allwinner EMAC from the Sun8i family (H2+, H3, A33, etc),
including emulation for the following functionality:

* DMA transfers
 * MII interface
 * Transmit CRC calculation

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-10-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/net/Makefile.objs                  |   1 +
 include/hw/arm/allwinner-h3.h         |   3 +
 include/hw/net/allwinner-sun8i-emac.h |  99 +++
 hw/arm/allwinner-h3.c                 |  16 +-
 hw/arm/orangepi.c                     |   3 +
 hw/net/allwinner-sun8i-emac.c         | 871 ++++++++++++++++++++++++++
 hw/arm/Kconfig                        |   1 +
 hw/net/Kconfig                        |   3 +
 hw/net/trace-events                   |  10 +
 9 files changed, 1006 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/net/allwinner-sun8i-emac.h
 create mode 100644 hw/net/allwinner-sun8i-emac.c

diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/hw/net/Makefile.objs
+++ b/hw/net/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_XGMAC) += xgmac.o
 common-obj-$(CONFIG_MIPSNET) += mipsnet.o
 common-obj-$(CONFIG_XILINX_AXI) += xilinx_axienet.o
 common-obj-$(CONFIG_ALLWINNER_EMAC) += allwinner_emac.o
+common-obj-$(CONFIG_ALLWINNER_SUN8I_EMAC) += allwinner-sun8i-emac.o
 common-obj-$(CONFIG_IMX_FEC) += imx_fec.o
 
 common-obj-$(CONFIG_CADENCE) += cadence_gem.o
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/misc/allwinner-h3-sysctrl.h"
 #include "hw/misc/allwinner-sid.h"
 #include "hw/sd/allwinner-sdhost.h"
+#include "hw/net/allwinner-sun8i-emac.h"
 #include "target/arm/cpu.h"
 
 /**
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_UART1,
     AW_H3_UART2,
     AW_H3_UART3,
+    AW_H3_EMAC,
     AW_H3_GIC_DIST,
     AW_H3_GIC_CPU,
     AW_H3_GIC_HYP,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
     AwH3SysCtrlState sysctrl;
     AwSidState sid;
     AwSdHostState mmc0;
+    AwSun8iEmacState emac;
     GICState gic;
     MemoryRegion sram_a1;
     MemoryRegion sram_a2;
diff --git a/include/hw/net/allwinner-sun8i-emac.h b/include/hw/net/allwinner-sun8i-emac.h
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/include/hw/net/allwinner-sun8i-emac.h
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner Sun8i Ethernet MAC emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_NET_ALLWINNER_SUN8I_EMAC_H
+#define HW_NET_ALLWINNER_SUN8I_EMAC_H
+
+#include "qom/object.h"
+#include "net/net.h"
+#include "hw/sysbus.h"
+
+/**
+ * Object model
+ * @{
+ */
+
+#define TYPE_AW_SUN8I_EMAC "allwinner-sun8i-emac"
+#define AW_SUN8I_EMAC(obj) \
+    OBJECT_CHECK(AwSun8iEmacState, (obj), TYPE_AW_SUN8I_EMAC)
+
+/** @} */
+
+/**
+ * Allwinner Sun8i EMAC object instance state
+ */
+typedef struct AwSun8iEmacState {
+    /*< private >*/
+    SysBusDevice  parent_obj;
+    /*< public >*/
+
+    /** Maps I/O registers in physical memory */
+    MemoryRegion iomem;
+
+    /** Interrupt output signal to notify CPU */
+    qemu_irq     irq;
+
+    /** Generic Network Interface Controller (NIC) for networking API */
+    NICState     *nic;
+
+    /** Generic Network Interface Controller (NIC) configuration */
+    NICConf      conf;
+
+    /**
+     * @name Media Independent Interface (MII)
+     * @{
+     */
+
+    uint8_t      mii_phy_addr;  /**< PHY address */
+    uint32_t     mii_cr;        /**< Control */
+    uint32_t     mii_st;        /**< Status */
+    uint32_t     mii_adv;       /**< Advertised Abilities */
+
+    /** @} */
+
+    /**
+     * @name Hardware Registers
+     * @{
+     */
+
+    uint32_t     basic_ctl0;    /**< Basic Control 0 */
+    uint32_t     basic_ctl1;    /**< Basic Control 1 */
+    uint32_t     int_en;        /**< Interrupt Enable */
+    uint32_t     int_sta;       /**< Interrupt Status */
+    uint32_t     frm_flt;       /**< Receive Frame Filter */
+
+    uint32_t     rx_ctl0;       /**< Receive Control 0 */
+    uint32_t     rx_ctl1;       /**< Receive Control 1 */
+    uint32_t     rx_desc_head;  /**< Receive Descriptor List Address */
+    uint32_t     rx_desc_curr;  /**< Current Receive Descriptor Address */
+
+    uint32_t     tx_ctl0;       /**< Transmit Control 0 */
+    uint32_t     tx_ctl1;       /**< Transmit Control 1 */
+    uint32_t     tx_desc_head;  /**< Transmit Descriptor List Address */
+    uint32_t     tx_desc_curr;  /**< Current Transmit Descriptor Address */
+    uint32_t     tx_flowctl;    /**< Transmit Flow Control */
+
+    uint32_t     mii_cmd;       /**< Management Interface Command */
+    uint32_t     mii_data;      /**< Management Interface Data */
+
+    /** @} */
+
+} AwSun8iEmacState;
+
+#endif /* HW_NET_ALLWINNER_SUN8I_H */
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_UART1]      = 0x01c28400,
     [AW_H3_UART2]      = 0x01c28800,
     [AW_H3_UART3]      = 0x01c28c00,
+    [AW_H3_EMAC]       = 0x01c30000,
     [AW_H3_GIC_DIST]   = 0x01c81000,
     [AW_H3_GIC_CPU]    = 0x01c82000,
     [AW_H3_GIC_HYP]    = 0x01c84000,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
     { "twi1",      0x01c2b000, 1 * KiB },
     { "twi2",      0x01c2b400, 1 * KiB },
     { "scr",       0x01c2c400, 1 * KiB },
-    { "emac",      0x01c30000, 64 * KiB },
     { "gpu",       0x01c40000, 64 * KiB },
     { "hstmr",     0x01c60000, 4 * KiB },
     { "dramcom",   0x01c62000, 4 * KiB },
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_GIC_SPI_OHCI2     = 77,
     AW_H3_GIC_SPI_EHCI3     = 78,
     AW_H3_GIC_SPI_OHCI3     = 79,
+    AW_H3_GIC_SPI_EMAC      = 82
 };
 
 /* Allwinner H3 general constants */
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
 
     sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
                           TYPE_AW_SDHOST_SUN5I);
+
+    sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
+                          TYPE_AW_SUN8I_EMAC);
 }
 
 static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
     object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
                               "sd-bus", &error_abort);
 
+    /* EMAC */
+    if (nd_table[0].used) {
+        qemu_check_nic_model(&nd_table[0], TYPE_AW_SUN8I_EMAC);
+        qdev_set_nic_properties(DEVICE(&s->emac), &nd_table[0]);
+    }
+    qdev_init_nofail(DEVICE(&s->emac));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->emac), 0, s->memmap[AW_H3_EMAC]);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->emac), 0,
+                       qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_EMAC));
+
     /* Universal Serial Bus */
     sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
                          qdev_get_gpio_in(DEVICE(&s->gic),
diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/orangepi.c
+++ b/hw/arm/orangepi.c
@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
         warn_report("Security Identifier value does not include H3 prefix");
     }
 
+    /* Setup EMAC properties */
+    object_property_set_int(OBJECT(&h3->emac), 1, "phy-addr", &error_abort);
+
     /* Mark H3 object realized */
     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
 
diff --git a/hw/net/allwinner-sun8i-emac.c b/hw/net/allwinner-sun8i-emac.c
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/net/allwinner-sun8i-emac.c
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner Sun8i Ethernet MAC emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/sysbus.h"
+#include "migration/vmstate.h"
+#include "net/net.h"
+#include "hw/irq.h"
+#include "hw/qdev-properties.h"
+#include "qemu/log.h"
+#include "trace.h"
+#include "net/checksum.h"
+#include "qemu/module.h"
+#include "exec/cpu-common.h"
+#include "hw/net/allwinner-sun8i-emac.h"
+
+/* EMAC register offsets */
+enum {
+    REG_BASIC_CTL_0        = 0x0000, /* Basic Control 0 */
+    REG_BASIC_CTL_1        = 0x0004, /* Basic Control 1 */
+    REG_INT_STA            = 0x0008, /* Interrupt Status */
+    REG_INT_EN             = 0x000C, /* Interrupt Enable */
+    REG_TX_CTL_0           = 0x0010, /* Transmit Control 0 */
+    REG_TX_CTL_1           = 0x0014, /* Transmit Control 1 */
+    REG_TX_FLOW_CTL        = 0x001C, /* Transmit Flow Control */
+    REG_TX_DMA_DESC_LIST   = 0x0020, /* Transmit Descriptor List Address */
+    REG_RX_CTL_0           = 0x0024, /* Receive Control 0 */
+    REG_RX_CTL_1           = 0x0028, /* Receive Control 1 */
+    REG_RX_DMA_DESC_LIST   = 0x0034, /* Receive Descriptor List Address */
+    REG_FRM_FLT            = 0x0038, /* Receive Frame Filter */
+    REG_RX_HASH_0          = 0x0040, /* Receive Hash Table 0 */
+    REG_RX_HASH_1          = 0x0044, /* Receive Hash Table 1 */
+    REG_MII_CMD            = 0x0048, /* Management Interface Command */
+    REG_MII_DATA           = 0x004C, /* Management Interface Data */
+    REG_ADDR_HIGH          = 0x0050, /* MAC Address High */
+    REG_ADDR_LOW           = 0x0054, /* MAC Address Low */
+    REG_TX_DMA_STA         = 0x00B0, /* Transmit DMA Status */
+    REG_TX_CUR_DESC        = 0x00B4, /* Transmit Current Descriptor */
+    REG_TX_CUR_BUF         = 0x00B8, /* Transmit Current Buffer */
+    REG_RX_DMA_STA         = 0x00C0, /* Receive DMA Status */
+    REG_RX_CUR_DESC        = 0x00C4, /* Receive Current Descriptor */
+    REG_RX_CUR_BUF         = 0x00C8, /* Receive Current Buffer */
+    REG_RGMII_STA          = 0x00D0, /* RGMII Status */
+};
+
+/* EMAC register flags */
+enum {
+    BASIC_CTL0_100Mbps     = (0b11 << 2),
+    BASIC_CTL0_FD          = (1 << 0),
+    BASIC_CTL1_SOFTRST     = (1 << 0),
+};
+
+enum {
+    INT_STA_RGMII_LINK     = (1 << 16),
+    INT_STA_RX_EARLY       = (1 << 13),
+    INT_STA_RX_OVERFLOW    = (1 << 12),
+    INT_STA_RX_TIMEOUT     = (1 << 11),
+    INT_STA_RX_DMA_STOP    = (1 << 10),
+    INT_STA_RX_BUF_UA      = (1 << 9),
+    INT_STA_RX             = (1 << 8),
+    INT_STA_TX_EARLY       = (1 << 5),
+    INT_STA_TX_UNDERFLOW   = (1 << 4),
+    INT_STA_TX_TIMEOUT     = (1 << 3),
+    INT_STA_TX_BUF_UA      = (1 << 2),
+    INT_STA_TX_DMA_STOP    = (1 << 1),
+    INT_STA_TX             = (1 << 0),
+};
+
+enum {
+    INT_EN_RX_EARLY        = (1 << 13),
+    INT_EN_RX_OVERFLOW     = (1 << 12),
+    INT_EN_RX_TIMEOUT      = (1 << 11),
+    INT_EN_RX_DMA_STOP     = (1 << 10),
+    INT_EN_RX_BUF_UA       = (1 << 9),
+    INT_EN_RX              = (1 << 8),
+    INT_EN_TX_EARLY        = (1 << 5),
+    INT_EN_TX_UNDERFLOW    = (1 << 4),
+    INT_EN_TX_TIMEOUT      = (1 << 3),
+    INT_EN_TX_BUF_UA       = (1 << 2),
+    INT_EN_TX_DMA_STOP     = (1 << 1),
+    INT_EN_TX              = (1 << 0),
+};
+
+enum {
+    TX_CTL0_TX_EN          = (1 << 31),
+    TX_CTL1_TX_DMA_START   = (1 << 31),
+    TX_CTL1_TX_DMA_EN      = (1 << 30),
+    TX_CTL1_TX_FLUSH       = (1 << 0),
+};
+
+enum {
+    RX_CTL0_RX_EN          = (1 << 31),
+    RX_CTL0_STRIP_FCS      = (1 << 28),
+    RX_CTL0_CRC_IPV4       = (1 << 27),
+};
+
+enum {
+    RX_CTL1_RX_DMA_START   = (1 << 31),
+    RX_CTL1_RX_DMA_EN      = (1 << 30),
+    RX_CTL1_RX_MD          = (1 << 1),
+};
+
+enum {
+    RX_FRM_FLT_DIS_ADDR    = (1 << 31),
+};
+
+enum {
+    MII_CMD_PHY_ADDR_SHIFT = (12),
+    MII_CMD_PHY_ADDR_MASK  = (0xf000),
+    MII_CMD_PHY_REG_SHIFT  = (4),
+    MII_CMD_PHY_REG_MASK   = (0xf0),
+    MII_CMD_PHY_RW         = (1 << 1),
+    MII_CMD_PHY_BUSY       = (1 << 0),
+};
+
+enum {
+    TX_DMA_STA_STOP        = (0b000),
+    TX_DMA_STA_RUN_FETCH   = (0b001),
+    TX_DMA_STA_WAIT_STA    = (0b010),
+};
+
+enum {
+    RX_DMA_STA_STOP        = (0b000),
+    RX_DMA_STA_RUN_FETCH   = (0b001),
+    RX_DMA_STA_WAIT_FRM    = (0b011),
+};
+
+/* EMAC register reset values */
+enum {
+    REG_BASIC_CTL_1_RST    = 0x08000000,
+};
+
+/* EMAC constants */
+enum {
+    AW_SUN8I_EMAC_MIN_PKT_SZ  = 64
+};
+
+/* Transmit/receive frame descriptor */
+typedef struct FrameDescriptor {
+    uint32_t status;
+    uint32_t status2;
+    uint32_t addr;
+    uint32_t next;
+} FrameDescriptor;
+
+/* Frame descriptor flags */
+enum {
+    DESC_STATUS_CTL                 = (1 << 31),
+    DESC_STATUS2_BUF_SIZE_MASK      = (0x7ff),
+};
+
+/* Transmit frame descriptor flags */
+enum {
+    TX_DESC_STATUS_LENGTH_ERR       = (1 << 14),
+    TX_DESC_STATUS2_FIRST_DESC      = (1 << 29),
+    TX_DESC_STATUS2_LAST_DESC       = (1 << 30),
+    TX_DESC_STATUS2_CHECKSUM_MASK   = (0x3 << 27),
+};
+
+/* Receive frame descriptor flags */
+enum {
+    RX_DESC_STATUS_FIRST_DESC       = (1 << 9),
+    RX_DESC_STATUS_LAST_DESC        = (1 << 8),
+    RX_DESC_STATUS_FRM_LEN_MASK     = (0x3fff0000),
+    RX_DESC_STATUS_FRM_LEN_SHIFT    = (16),
+    RX_DESC_STATUS_NO_BUF           = (1 << 14),
+    RX_DESC_STATUS_HEADER_ERR       = (1 << 7),
+    RX_DESC_STATUS_LENGTH_ERR       = (1 << 4),
+    RX_DESC_STATUS_CRC_ERR          = (1 << 1),
+    RX_DESC_STATUS_PAYLOAD_ERR      = (1 << 0),
+    RX_DESC_STATUS2_RX_INT_CTL      = (1 << 31),
+};
+
+/* MII register offsets */
+enum {
+    MII_REG_CR                      = (0x0), /* Control */
+    MII_REG_ST                      = (0x1), /* Status */
+    MII_REG_ID_HIGH                 = (0x2), /* Identifier High */
+    MII_REG_ID_LOW                  = (0x3), /* Identifier Low */
+    MII_REG_ADV                     = (0x4), /* Advertised abilities */
+    MII_REG_LPA                     = (0x5), /* Link partner abilities */
+};
+
+/* MII register flags */
+enum {
+    MII_REG_CR_RESET                = (1 << 15),
+    MII_REG_CR_POWERDOWN            = (1 << 11),
+    MII_REG_CR_10Mbit               = (0),
+    MII_REG_CR_100Mbit              = (1 << 13),
+    MII_REG_CR_1000Mbit             = (1 << 6),
+    MII_REG_CR_AUTO_NEG             = (1 << 12),
+    MII_REG_CR_AUTO_NEG_RESTART     = (1 << 9),
+    MII_REG_CR_FULLDUPLEX           = (1 << 8),
+};
+
+enum {
+    MII_REG_ST_100BASE_T4           = (1 << 15),
+    MII_REG_ST_100BASE_X_FD         = (1 << 14),
+    MII_REG_ST_100BASE_X_HD         = (1 << 13),
+    MII_REG_ST_10_FD                = (1 << 12),
+    MII_REG_ST_10_HD                = (1 << 11),
+    MII_REG_ST_100BASE_T2_FD        = (1 << 10),
+    MII_REG_ST_100BASE_T2_HD        = (1 << 9),
+    MII_REG_ST_AUTONEG_COMPLETE     = (1 << 5),
+    MII_REG_ST_AUTONEG_AVAIL        = (1 << 3),
+    MII_REG_ST_LINK_UP              = (1 << 2),
+};
+
+enum {
+    MII_REG_LPA_10_HD               = (1 << 5),
+    MII_REG_LPA_10_FD               = (1 << 6),
+    MII_REG_LPA_100_HD              = (1 << 7),
+    MII_REG_LPA_100_FD              = (1 << 8),
+    MII_REG_LPA_PAUSE               = (1 << 10),
+    MII_REG_LPA_ASYMPAUSE           = (1 << 11),
+};
+
+/* MII constants */
+enum {
+    MII_PHY_ID_HIGH                 = 0x0044,
+    MII_PHY_ID_LOW                  = 0x1400,
+};
+
+static void allwinner_sun8i_emac_mii_set_link(AwSun8iEmacState *s,
+                                              bool link_active)
+{
+    if (link_active) {
+        s->mii_st |= MII_REG_ST_LINK_UP;
+    } else {
+        s->mii_st &= ~MII_REG_ST_LINK_UP;
+    }
+}
+
+static void allwinner_sun8i_emac_mii_reset(AwSun8iEmacState *s,
+                                           bool link_active)
+{
+    s->mii_cr = MII_REG_CR_100Mbit | MII_REG_CR_AUTO_NEG |
+                MII_REG_CR_FULLDUPLEX;
+    s->mii_st = MII_REG_ST_100BASE_T4 | MII_REG_ST_100BASE_X_FD |
+                MII_REG_ST_100BASE_X_HD | MII_REG_ST_10_FD | MII_REG_ST_10_HD |
+                MII_REG_ST_100BASE_T2_FD | MII_REG_ST_100BASE_T2_HD |
+                MII_REG_ST_AUTONEG_COMPLETE | MII_REG_ST_AUTONEG_AVAIL;
+    s->mii_adv = 0;
+
+    allwinner_sun8i_emac_mii_set_link(s, link_active);
+}
+
+static void allwinner_sun8i_emac_mii_cmd(AwSun8iEmacState *s)
+{
+    uint8_t addr, reg;
+
+    addr = (s->mii_cmd & MII_CMD_PHY_ADDR_MASK) >> MII_CMD_PHY_ADDR_SHIFT;
+    reg = (s->mii_cmd & MII_CMD_PHY_REG_MASK) >> MII_CMD_PHY_REG_SHIFT;
+
+    if (addr != s->mii_phy_addr) {
+        return;
+    }
+
+    /* Read or write a PHY register? */
+    if (s->mii_cmd & MII_CMD_PHY_RW) {
+        trace_allwinner_sun8i_emac_mii_write_reg(reg, s->mii_data);
+
+        switch (reg) {
+        case MII_REG_CR:
+            if (s->mii_data & MII_REG_CR_RESET) {
+                allwinner_sun8i_emac_mii_reset(s, s->mii_st &
+                                                  MII_REG_ST_LINK_UP);
+            } else {
+                s->mii_cr = s->mii_data & ~(MII_REG_CR_RESET |
+                                            MII_REG_CR_AUTO_NEG_RESTART);
+            }
+            break;
+        case MII_REG_ADV:
+            s->mii_adv = s->mii_data;
+            break;
+        case MII_REG_ID_HIGH:
+        case MII_REG_ID_LOW:
+        case MII_REG_LPA:
+            break;
+        default:
+            qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: write access to "
+                                     "unknown MII register 0x%x\n", reg);
+            break;
+        }
+    } else {
+        switch (reg) {
+        case MII_REG_CR:
+            s->mii_data = s->mii_cr;
+            break;
+        case MII_REG_ST:
+            s->mii_data = s->mii_st;
+            break;
+        case MII_REG_ID_HIGH:
+            s->mii_data = MII_PHY_ID_HIGH;
+            break;
+        case MII_REG_ID_LOW:
+            s->mii_data = MII_PHY_ID_LOW;
+            break;
+        case MII_REG_ADV:
+            s->mii_data = s->mii_adv;
+            break;
+        case MII_REG_LPA:
+            s->mii_data = MII_REG_LPA_10_HD | MII_REG_LPA_10_FD |
+                          MII_REG_LPA_100_HD | MII_REG_LPA_100_FD |
+                          MII_REG_LPA_PAUSE | MII_REG_LPA_ASYMPAUSE;
+            break;
+        default:
+            qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: read access to "
+                                     "unknown MII register 0x%x\n", reg);
+            s->mii_data = 0;
+            break;
+        }
+
+        trace_allwinner_sun8i_emac_mii_read_reg(reg, s->mii_data);
+    }
+}
+
+static void allwinner_sun8i_emac_update_irq(AwSun8iEmacState *s)
+{
+    qemu_set_irq(s->irq, (s->int_sta & s->int_en) != 0);
+}
+
+static uint32_t allwinner_sun8i_emac_next_desc(FrameDescriptor *desc,
+                                               size_t min_size)
+{
+    uint32_t paddr = desc->next;
+
+    cpu_physical_memory_read(paddr, desc, sizeof(*desc));
+
+    if ((desc->status & DESC_STATUS_CTL) &&
+        (desc->status2 & DESC_STATUS2_BUF_SIZE_MASK) >= min_size) {
+        return paddr;
+    } else {
+        return 0;
+    }
+}
+
+static uint32_t allwinner_sun8i_emac_get_desc(FrameDescriptor *desc,
+                                              uint32_t start_addr,
+                                              size_t min_size)
+{
+    uint32_t desc_addr = start_addr;
+
+    /* Note that the list is a cycle. Last entry points back to the head. */
+    while (desc_addr != 0) {
+        cpu_physical_memory_read(desc_addr, desc, sizeof(*desc));
+
+        if ((desc->status & DESC_STATUS_CTL) &&
+            (desc->status2 & DESC_STATUS2_BUF_SIZE_MASK) >= min_size) {
+            return desc_addr;
+        } else if (desc->next == start_addr) {
+            break;
+        } else {
+            desc_addr = desc->next;
+        }
+    }
+
+    return 0;
+}
+
+static uint32_t allwinner_sun8i_emac_rx_desc(AwSun8iEmacState *s,
+                                             FrameDescriptor *desc,
+                                             size_t min_size)
+{
+    return allwinner_sun8i_emac_get_desc(desc, s->rx_desc_curr, min_size);
+}
+
+static uint32_t allwinner_sun8i_emac_tx_desc(AwSun8iEmacState *s,
+                                             FrameDescriptor *desc,
+                                             size_t min_size)
+{
+    return allwinner_sun8i_emac_get_desc(desc, s->tx_desc_head, min_size);
+}
+
+static void allwinner_sun8i_emac_flush_desc(FrameDescriptor *desc,
+                                            uint32_t phys_addr)
+{
+    cpu_physical_memory_write(phys_addr, desc, sizeof(*desc));
+}
+
+static int allwinner_sun8i_emac_can_receive(NetClientState *nc)
+{
+    AwSun8iEmacState *s = qemu_get_nic_opaque(nc);
+    FrameDescriptor desc;
+
+    return (s->rx_ctl0 & RX_CTL0_RX_EN) &&
+           (allwinner_sun8i_emac_rx_desc(s, &desc, 0) != 0);
+}
+
+static ssize_t allwinner_sun8i_emac_receive(NetClientState *nc,
+                                            const uint8_t *buf,
+                                            size_t size)
+{
+    AwSun8iEmacState *s = qemu_get_nic_opaque(nc);
+    FrameDescriptor desc;
+    size_t bytes_left = size;
+    size_t desc_bytes = 0;
+    size_t pad_fcs_size = 4;
+    size_t padding = 0;
+
+    if (!(s->rx_ctl0 & RX_CTL0_RX_EN)) {
+        return -1;
+    }
+
+    s->rx_desc_curr = allwinner_sun8i_emac_rx_desc(s, &desc,
+                                                   AW_SUN8I_EMAC_MIN_PKT_SZ);
+    if (!s->rx_desc_curr) {
+        s->int_sta |= INT_STA_RX_BUF_UA;
+    }
+
+    /* Keep filling RX descriptors until the whole frame is written */
+    while (s->rx_desc_curr && bytes_left > 0) {
+        desc.status &= ~DESC_STATUS_CTL;
+        desc.status &= ~RX_DESC_STATUS_FRM_LEN_MASK;
+
+        if (bytes_left == size) {
+            desc.status |= RX_DESC_STATUS_FIRST_DESC;
+        }
+
+        if ((desc.status2 & DESC_STATUS2_BUF_SIZE_MASK) <
+            (bytes_left + pad_fcs_size)) {
+            desc_bytes = desc.status2 & DESC_STATUS2_BUF_SIZE_MASK;
+            desc.status |= desc_bytes << RX_DESC_STATUS_FRM_LEN_SHIFT;
+        } else {
+            padding = pad_fcs_size;
+            if (bytes_left < AW_SUN8I_EMAC_MIN_PKT_SZ) {
+                padding += (AW_SUN8I_EMAC_MIN_PKT_SZ - bytes_left);
+            }
+
+            desc_bytes = (bytes_left);
+            desc.status |= RX_DESC_STATUS_LAST_DESC;
+            desc.status |= (bytes_left + padding)
+                            << RX_DESC_STATUS_FRM_LEN_SHIFT;
+        }
+
+        cpu_physical_memory_write(desc.addr, buf, desc_bytes);
+        allwinner_sun8i_emac_flush_desc(&desc, s->rx_desc_curr);
+        trace_allwinner_sun8i_emac_receive(s->rx_desc_curr, desc.addr,
+                                           desc_bytes);
+
+        /* Check if frame needs to raise the receive interrupt */
+        if (!(desc.status2 & RX_DESC_STATUS2_RX_INT_CTL)) {
+            s->int_sta |= INT_STA_RX;
+        }
+
+        /* Increment variables */
+        buf += desc_bytes;
+        bytes_left -= desc_bytes;
+
+        /* Move to the next descriptor */
+        s->rx_desc_curr = allwinner_sun8i_emac_next_desc(&desc, 64);
+        if (!s->rx_desc_curr) {
+            /* Not enough buffer space available */
+            s->int_sta |= INT_STA_RX_BUF_UA;
+            s->rx_desc_curr = s->rx_desc_head;
+            break;
+        }
+    }
+
+    /* Report receive DMA is finished */
+    s->rx_ctl1 &= ~RX_CTL1_RX_DMA_START;
+    allwinner_sun8i_emac_update_irq(s);
+
+    return size;
+}
+
+static void allwinner_sun8i_emac_transmit(AwSun8iEmacState *s)
+{
+    NetClientState *nc = qemu_get_queue(s->nic);
+    FrameDescriptor desc;
+    size_t bytes = 0;
+    size_t packet_bytes = 0;
+    size_t transmitted = 0;
+    static uint8_t packet_buf[2048];
+
+    s->tx_desc_curr = allwinner_sun8i_emac_tx_desc(s, &desc, 0);
+
+    /* Read all transmit descriptors */
+    while (s->tx_desc_curr != 0) {
+
+        /* Read from physical memory into packet buffer */
+        bytes = desc.status2 & DESC_STATUS2_BUF_SIZE_MASK;
+        if (bytes + packet_bytes > sizeof(packet_buf)) {
+            desc.status |= TX_DESC_STATUS_LENGTH_ERR;
+            break;
+        }
+        cpu_physical_memory_read(desc.addr, packet_buf + packet_bytes, bytes);
+        packet_bytes += bytes;
+        desc.status &= ~DESC_STATUS_CTL;
+        allwinner_sun8i_emac_flush_desc(&desc, s->tx_desc_curr);
+
+        /* After the last descriptor, send the packet */
+        if (desc.status2 & TX_DESC_STATUS2_LAST_DESC) {
+            if (desc.status2 & TX_DESC_STATUS2_CHECKSUM_MASK) {
+                net_checksum_calculate(packet_buf, packet_bytes);
+            }
+
+            qemu_send_packet(nc, packet_buf, packet_bytes);
+            trace_allwinner_sun8i_emac_transmit(s->tx_desc_curr, desc.addr,
+                                                bytes);
+
+            packet_bytes = 0;
+            transmitted++;
+        }
+        s->tx_desc_curr = allwinner_sun8i_emac_next_desc(&desc, 0);
+    }
+
+    /* Raise transmit completed interrupt */
+    if (transmitted > 0) {
+        s->int_sta |= INT_STA_TX;
+        s->tx_ctl1 &= ~TX_CTL1_TX_DMA_START;
+        allwinner_sun8i_emac_update_irq(s);
+    }
+}
+
+static void allwinner_sun8i_emac_reset(DeviceState *dev)
+{
+    AwSun8iEmacState *s = AW_SUN8I_EMAC(dev);
+    NetClientState *nc = qemu_get_queue(s->nic);
+
+    trace_allwinner_sun8i_emac_reset();
+
+    s->mii_cmd = 0;
+    s->mii_data = 0;
+    s->basic_ctl0 = 0;
+    s->basic_ctl1 = REG_BASIC_CTL_1_RST;
+    s->int_en = 0;
+    s->int_sta = 0;
+    s->frm_flt = 0;
+    s->rx_ctl0 = 0;
+    s->rx_ctl1 = RX_CTL1_RX_MD;
+    s->rx_desc_head = 0;
+    s->rx_desc_curr = 0;
+    s->tx_ctl0 = 0;
+    s->tx_ctl1 = 0;
+    s->tx_desc_head = 0;
+    s->tx_desc_curr = 0;
+    s->tx_flowctl = 0;
+
+    allwinner_sun8i_emac_mii_reset(s, !nc->link_down);
+}
+
+static uint64_t allwinner_sun8i_emac_read(void *opaque, hwaddr offset,
+                                          unsigned size)
+{
+    AwSun8iEmacState *s = AW_SUN8I_EMAC(opaque);
+    uint64_t value = 0;
+    FrameDescriptor desc;
+
+    switch (offset) {
+    case REG_BASIC_CTL_0:       /* Basic Control 0 */
+        value = s->basic_ctl0;
+        break;
+    case REG_BASIC_CTL_1:       /* Basic Control 1 */
+        value = s->basic_ctl1;
+        break;
+    case REG_INT_STA:           /* Interrupt Status */
+        value = s->int_sta;
+        break;
+    case REG_INT_EN:            /* Interupt Enable */
+        value = s->int_en;
+        break;
+    case REG_TX_CTL_0:          /* Transmit Control 0 */
+        value = s->tx_ctl0;
+        break;
+    case REG_TX_CTL_1:          /* Transmit Control 1 */
+        value = s->tx_ctl1;
+        break;
+    case REG_TX_FLOW_CTL:       /* Transmit Flow Control */
+        value = s->tx_flowctl;
+        break;
+    case REG_TX_DMA_DESC_LIST:  /* Transmit Descriptor List Address */
+        value = s->tx_desc_head;
+        break;
+    case REG_RX_CTL_0:          /* Receive Control 0 */
+        value = s->rx_ctl0;
+        break;
+    case REG_RX_CTL_1:          /* Receive Control 1 */
+        value = s->rx_ctl1;
+        break;
+    case REG_RX_DMA_DESC_LIST:  /* Receive Descriptor List Address */
+        value = s->rx_desc_head;
+        break;
+    case REG_FRM_FLT:           /* Receive Frame Filter */
+        value = s->frm_flt;
+        break;
+    case REG_RX_HASH_0:         /* Receive Hash Table 0 */
+    case REG_RX_HASH_1:         /* Receive Hash Table 1 */
+        break;
+    case REG_MII_CMD:           /* Management Interface Command */
+        value = s->mii_cmd;
+        break;
+    case REG_MII_DATA:          /* Management Interface Data */
+        value = s->mii_data;
+        break;
+    case REG_ADDR_HIGH:         /* MAC Address High */
+        value = *(((uint32_t *) (s->conf.macaddr.a)) + 1);
+        break;
+    case REG_ADDR_LOW:          /* MAC Address Low */
+        value = *(uint32_t *) (s->conf.macaddr.a);
+        break;
+    case REG_TX_DMA_STA:        /* Transmit DMA Status */
+        break;
+    case REG_TX_CUR_DESC:       /* Transmit Current Descriptor */
+        value = s->tx_desc_curr;
+        break;
+    case REG_TX_CUR_BUF:        /* Transmit Current Buffer */
+        if (s->tx_desc_curr != 0) {
+            cpu_physical_memory_read(s->tx_desc_curr, &desc, sizeof(desc));
+            value = desc.addr;
+        } else {
+            value = 0;
+        }
+        break;
+    case REG_RX_DMA_STA:        /* Receive DMA Status */
+        break;
+    case REG_RX_CUR_DESC:       /* Receive Current Descriptor */
+        value = s->rx_desc_curr;
+        break;
+    case REG_RX_CUR_BUF:        /* Receive Current Buffer */
+        if (s->rx_desc_curr != 0) {
+            cpu_physical_memory_read(s->rx_desc_curr, &desc, sizeof(desc));
+            value = desc.addr;
+        } else {
+            value = 0;
+        }
+        break;
+    case REG_RGMII_STA:         /* RGMII Status */
+        break;
+    default:
+        qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: read access to unknown "
+                                 "EMAC register 0x" TARGET_FMT_plx "\n",
+                                  offset);
+    }
+
+    trace_allwinner_sun8i_emac_read(offset, value);
+    return value;
+}
+
+static void allwinner_sun8i_emac_write(void *opaque, hwaddr offset,
+                                       uint64_t value, unsigned size)
+{
+    AwSun8iEmacState *s = AW_SUN8I_EMAC(opaque);
+    NetClientState *nc = qemu_get_queue(s->nic);
+
+    trace_allwinner_sun8i_emac_write(offset, value);
+
+    switch (offset) {
+    case REG_BASIC_CTL_0:       /* Basic Control 0 */
+        s->basic_ctl0 = value;
+        break;
+    case REG_BASIC_CTL_1:       /* Basic Control 1 */
+        if (value & BASIC_CTL1_SOFTRST) {
+            allwinner_sun8i_emac_reset(DEVICE(s));
+            value &= ~BASIC_CTL1_SOFTRST;
+        }
+        s->basic_ctl1 = value;
+        if (allwinner_sun8i_emac_can_receive(nc)) {
+            qemu_flush_queued_packets(nc);
+        }
+        break;
+    case REG_INT_STA:           /* Interrupt Status */
+        s->int_sta &= ~value;
+        allwinner_sun8i_emac_update_irq(s);
+        break;
+    case REG_INT_EN:            /* Interrupt Enable */
+        s->int_en = value;
+        allwinner_sun8i_emac_update_irq(s);
+        break;
+    case REG_TX_CTL_0:          /* Transmit Control 0 */
+        s->tx_ctl0 = value;
+        break;
+    case REG_TX_CTL_1:          /* Transmit Control 1 */
+        s->tx_ctl1 = value;
+        if (value & TX_CTL1_TX_DMA_EN) {
+            allwinner_sun8i_emac_transmit(s);
+        }
+        break;
+    case REG_TX_FLOW_CTL:       /* Transmit Flow Control */
+        s->tx_flowctl = value;
+        break;
+    case REG_TX_DMA_DESC_LIST:  /* Transmit Descriptor List Address */
+        s->tx_desc_head = value;
+        s->tx_desc_curr = value;
+        break;
+    case REG_RX_CTL_0:          /* Receive Control 0 */
+        s->rx_ctl0 = value;
+        break;
+    case REG_RX_CTL_1:          /* Receive Control 1 */
+        s->rx_ctl1 = value | RX_CTL1_RX_MD;
+        if ((value & RX_CTL1_RX_DMA_EN) &&
+             allwinner_sun8i_emac_can_receive(nc)) {
+            qemu_flush_queued_packets(nc);
+        }
+        break;
+    case REG_RX_DMA_DESC_LIST:  /* Receive Descriptor List Address */
+        s->rx_desc_head = value;
+        s->rx_desc_curr = value;
+        break;
+    case REG_FRM_FLT:           /* Receive Frame Filter */
+        s->frm_flt = value;
+        break;
+    case REG_RX_HASH_0:         /* Receive Hash Table 0 */
+    case REG_RX_HASH_1:         /* Receive Hash Table 1 */
+        break;
+    case REG_MII_CMD:           /* Management Interface Command */
+        s->mii_cmd = value & ~MII_CMD_PHY_BUSY;
+        allwinner_sun8i_emac_mii_cmd(s);
+        break;
+    case REG_MII_DATA:          /* Management Interface Data */
+        s->mii_data = value;
+        break;
+    case REG_ADDR_HIGH:         /* MAC Address High */
+        s->conf.macaddr.a[4] = (value & 0xff);
+        s->conf.macaddr.a[5] = (value & 0xff00) >> 8;
+        break;
+    case REG_ADDR_LOW:          /* MAC Address Low */
+        s->conf.macaddr.a[0] = (value & 0xff);
+        s->conf.macaddr.a[1] = (value & 0xff00) >> 8;
+        s->conf.macaddr.a[2] = (value & 0xff0000) >> 16;
+        s->conf.macaddr.a[3] = (value & 0xff000000) >> 24;
+        break;
+    case REG_TX_DMA_STA:        /* Transmit DMA Status */
+    case REG_TX_CUR_DESC:       /* Transmit Current Descriptor */
+    case REG_TX_CUR_BUF:        /* Transmit Current Buffer */
+    case REG_RX_DMA_STA:        /* Receive DMA Status */
+    case REG_RX_CUR_DESC:       /* Receive Current Descriptor */
+    case REG_RX_CUR_BUF:        /* Receive Current Buffer */
+    case REG_RGMII_STA:         /* RGMII Status */
+        break;
+    default:
+        qemu_log_mask(LOG_UNIMP, "allwinner-h3-emac: write access to unknown "
+                                 "EMAC register 0x" TARGET_FMT_plx "\n",
+                                  offset);
+    }
+}
+
+static void allwinner_sun8i_emac_set_link(NetClientState *nc)
+{
+    AwSun8iEmacState *s = qemu_get_nic_opaque(nc);
+
+    trace_allwinner_sun8i_emac_set_link(!nc->link_down);
+    allwinner_sun8i_emac_mii_set_link(s, !nc->link_down);
+}
+
+static const MemoryRegionOps allwinner_sun8i_emac_mem_ops = {
+    .read = allwinner_sun8i_emac_read,
+    .write = allwinner_sun8i_emac_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static NetClientInfo net_allwinner_sun8i_emac_info = {
+    .type = NET_CLIENT_DRIVER_NIC,
+    .size = sizeof(NICState),
+    .can_receive = allwinner_sun8i_emac_can_receive,
+    .receive = allwinner_sun8i_emac_receive,
+    .link_status_changed = allwinner_sun8i_emac_set_link,
+};
+
+static void allwinner_sun8i_emac_init(Object *obj)
+{
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    AwSun8iEmacState *s = AW_SUN8I_EMAC(obj);
+
+    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_sun8i_emac_mem_ops,
+                           s, TYPE_AW_SUN8I_EMAC, 64 * KiB);
+    sysbus_init_mmio(sbd, &s->iomem);
+    sysbus_init_irq(sbd, &s->irq);
+}
+
+static void allwinner_sun8i_emac_realize(DeviceState *dev, Error **errp)
+{
+    AwSun8iEmacState *s = AW_SUN8I_EMAC(dev);
+
+    qemu_macaddr_default_if_unset(&s->conf.macaddr);
+    s->nic = qemu_new_nic(&net_allwinner_sun8i_emac_info, &s->conf,
+                           object_get_typename(OBJECT(dev)), dev->id, s);
+    qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
+}
+
+static Property allwinner_sun8i_emac_properties[] = {
+    DEFINE_NIC_PROPERTIES(AwSun8iEmacState, conf),
+    DEFINE_PROP_UINT8("phy-addr", AwSun8iEmacState, mii_phy_addr, 0),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static int allwinner_sun8i_emac_post_load(void *opaque, int version_id)
+{
+    AwSun8iEmacState *s = opaque;
+
+    allwinner_sun8i_emac_set_link(qemu_get_queue(s->nic));
+
+    return 0;
+}
+
+static const VMStateDescription vmstate_aw_emac = {
+    .name = "allwinner-sun8i-emac",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .post_load = allwinner_sun8i_emac_post_load,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT8(mii_phy_addr, AwSun8iEmacState),
+        VMSTATE_UINT32(mii_cmd, AwSun8iEmacState),
+        VMSTATE_UINT32(mii_data, AwSun8iEmacState),
+        VMSTATE_UINT32(mii_cr, AwSun8iEmacState),
+        VMSTATE_UINT32(mii_st, AwSun8iEmacState),
+        VMSTATE_UINT32(mii_adv, AwSun8iEmacState),
+        VMSTATE_UINT32(basic_ctl0, AwSun8iEmacState),
+        VMSTATE_UINT32(basic_ctl1, AwSun8iEmacState),
+        VMSTATE_UINT32(int_en, AwSun8iEmacState),
+        VMSTATE_UINT32(int_sta, AwSun8iEmacState),
+        VMSTATE_UINT32(frm_flt, AwSun8iEmacState),
+        VMSTATE_UINT32(rx_ctl0, AwSun8iEmacState),
+        VMSTATE_UINT32(rx_ctl1, AwSun8iEmacState),
+        VMSTATE_UINT32(rx_desc_head, AwSun8iEmacState),
+        VMSTATE_UINT32(rx_desc_curr, AwSun8iEmacState),
+        VMSTATE_UINT32(tx_ctl0, AwSun8iEmacState),
+        VMSTATE_UINT32(tx_ctl1, AwSun8iEmacState),
+        VMSTATE_UINT32(tx_desc_head, AwSun8iEmacState),
+        VMSTATE_UINT32(tx_desc_curr, AwSun8iEmacState),
+        VMSTATE_UINT32(tx_flowctl, AwSun8iEmacState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void allwinner_sun8i_emac_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->realize = allwinner_sun8i_emac_realize;
+    dc->reset = allwinner_sun8i_emac_reset;
+    dc->vmsd = &vmstate_aw_emac;
+    device_class_set_props(dc, allwinner_sun8i_emac_properties);
+}
+
+static const TypeInfo allwinner_sun8i_emac_info = {
+    .name           = TYPE_AW_SUN8I_EMAC,
+    .parent         = TYPE_SYS_BUS_DEVICE,
+    .instance_size  = sizeof(AwSun8iEmacState),
+    .instance_init  = allwinner_sun8i_emac_init,
+    .class_init     = allwinner_sun8i_emac_class_init,
+};
+
+static void allwinner_sun8i_emac_register_types(void)
+{
+    type_register_static(&allwinner_sun8i_emac_info);
+}
+
+type_init(allwinner_sun8i_emac_register_types)
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -XXX,XX +XXX,XX @@ config ALLWINNER_A10
 config ALLWINNER_H3
     bool
     select ALLWINNER_A10_PIT
+    select ALLWINNER_SUN8I_EMAC
     select SERIAL
     select ARM_TIMER
     select ARM_GIC
diff --git a/hw/net/Kconfig b/hw/net/Kconfig
index XXXXXXX..XXXXXXX 100644
--- a/hw/net/Kconfig
+++ b/hw/net/Kconfig
@@ -XXX,XX +XXX,XX @@ config MIPSNET
 config ALLWINNER_EMAC
     bool
 
+config ALLWINNER_SUN8I_EMAC
+    bool
+
 config IMX_FEC
     bool
 
diff --git a/hw/net/trace-events b/hw/net/trace-events
index XXXXXXX..XXXXXXX 100644
--- a/hw/net/trace-events
+++ b/hw/net/trace-events
@@ -XXX,XX +XXX,XX @@
 # See docs/devel/tracing.txt for syntax documentation.
 
+# allwinner-sun8i-emac.c
+allwinner_sun8i_emac_mii_write_reg(uint32_t reg, uint32_t value) "MII write: reg=0x%" PRIx32 " value=0x%" PRIx32
+allwinner_sun8i_emac_mii_read_reg(uint32_t reg, uint32_t value) "MII read: reg=0x%" PRIx32 " value=0x%" PRIx32
+allwinner_sun8i_emac_receive(uint32_t desc, uint32_t paddr, uint32_t bytes) "RX packet: desc=0x%" PRIx32 " paddr=0x%" PRIx32 " bytes=%" PRIu32
+allwinner_sun8i_emac_transmit(uint32_t desc, uint32_t paddr, uint32_t bytes) "TX packet: desc=0x%" PRIx32 " paddr=0x%" PRIx32 " bytes=%" PRIu32
+allwinner_sun8i_emac_reset(void) "HW reset"
+allwinner_sun8i_emac_set_link(bool active) "Set link: active=%u"
+allwinner_sun8i_emac_read(uint64_t offset, uint64_t val) "MMIO read: offset=0x%" PRIx64 " value=0x%" PRIx64
+allwinner_sun8i_emac_write(uint64_t offset, uint64_t val) "MMIO write: offset=0x%" PRIx64 " value=0x%" PRIx64
+
 # etraxfs_eth.c
 mdio_phy_read(int regnum, uint16_t value) "read phy_reg:%d value:0x%04x"
 mdio_phy_write(int regnum, uint16_t value) "write phy_reg:%d value:0x%04x"
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

A real Allwinner H3 SoC contains a Boot ROM which is the
first code that runs right after the SoC is powered on.
The Boot ROM is responsible for loading user code (e.g. a bootloader)
from any of the supported external devices and writing the downloaded
code to internal SRAM. After loading the SoC begins executing the code
written to SRAM.

This commits adds emulation of the Boot ROM firmware setup functionality
by loading user code from SD card in the A1 SRAM. While the A1 SRAM is
64KiB, we limit the size to 32KiB because the real H3 Boot ROM also rejects
sizes larger than 32KiB. For reference, this behaviour is documented
by the Linux Sunxi project wiki at:

https://linux-sunxi.org/BROM#U-Boot_SPL_limitations

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-11-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/allwinner-h3.h | 21 +++++++++++++++++++++
 hw/arm/allwinner-h3.c         | 17 +++++++++++++++++
 hw/arm/orangepi.c             |  5 +++++
 3 files changed, 43 insertions(+)

diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/sd/allwinner-sdhost.h"
 #include "hw/net/allwinner-sun8i-emac.h"
 #include "target/arm/cpu.h"
+#include "sysemu/block-backend.h"
 
 /**
  * Allwinner H3 device list
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
     MemoryRegion sram_c;
 } AwH3State;
 
+/**
+ * Emulate Boot ROM firmware setup functionality.
+ *
+ * A real Allwinner H3 SoC contains a Boot ROM
+ * which is the first code that runs right after
+ * the SoC is powered on. The Boot ROM is responsible
+ * for loading user code (e.g. a bootloader) from any
+ * of the supported external devices and writing the
+ * downloaded code to internal SRAM. After loading the SoC
+ * begins executing the code written to SRAM.
+ *
+ * This function emulates the Boot ROM by copying 32 KiB
+ * of data from the given block device and writes it to
+ * the start of the first internal SRAM memory.
+ *
+ * @s: Allwinner H3 state object pointer
+ * @blk: Block backend device object pointer
+ */
+void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk);
+
 #endif /* HW_ARM_ALLWINNER_H3_H */
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@
 #include "hw/char/serial.h"
 #include "hw/misc/unimp.h"
 #include "hw/usb/hcd-ehci.h"
+#include "hw/loader.h"
 #include "sysemu/sysemu.h"
 #include "hw/arm/allwinner-h3.h"
 
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_GIC_NUM_SPI       = 128
 };
 
+void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk)
+{
+    const int64_t rom_size = 32 * KiB;
+    g_autofree uint8_t *buffer = g_new0(uint8_t, rom_size);
+
+    if (blk_pread(blk, 8 * KiB, buffer, rom_size) < 0) {
+        error_setg(&error_fatal, "%s: failed to read BlockBackend data",
+                   __func__);
+        return;
+    }
+
+    rom_add_blob("allwinner-h3.bootrom", buffer, rom_size,
+                  rom_size, s->memmap[AW_H3_SRAM_A1],
+                  NULL, NULL, NULL, NULL, false);
+}
+
 static void allwinner_h3_init(Object *obj)
 {
     AwH3State *s = AW_H3(obj);
diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/orangepi.c
+++ b/hw/arm/orangepi.c
@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_SDRAM],
                                 machine->ram);
 
+    /* Load target kernel or start using BootROM */
+    if (!machine->kernel_filename && blk_is_available(blk)) {
+        /* Use Boot ROM to copy data from SD card to SRAM */
+        allwinner_h3_bootrom_setup(h3, blk);
+    }
     orangepi_binfo.loader_start = h3->memmap[AW_H3_SDRAM];
     orangepi_binfo.ram_size = machine->ram_size;
     arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

In the Allwinner H3 SoC the SDRAM controller is responsible
for interfacing with the external Synchronous Dynamic Random
Access Memory (SDRAM). Types of memory that the SDRAM controller
supports are DDR2/DDR3 and capacities of up to 2GiB. This commit
adds emulation support of the Allwinner H3 SDRAM controller.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-12-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/misc/Makefile.objs                |   1 +
 include/hw/arm/allwinner-h3.h        |   5 +
 include/hw/misc/allwinner-h3-dramc.h | 106 ++++++++
 hw/arm/allwinner-h3.c                |  19 +-
 hw/arm/orangepi.c                    |   6 +
 hw/misc/allwinner-h3-dramc.c         | 358 +++++++++++++++++++++++++++
 hw/misc/trace-events                 |  10 +
 7 files changed, 502 insertions(+), 3 deletions(-)
 create mode 100644 include/hw/misc/allwinner-h3-dramc.h
 create mode 100644 hw/misc/allwinner-h3-dramc.c

diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/hw/misc/Makefile.objs
+++ b/hw/misc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
 
 common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
 obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
+common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-dramc.o
 common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
 common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sid.o
 common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/intc/arm_gic.h"
 #include "hw/misc/allwinner-h3-ccu.h"
 #include "hw/misc/allwinner-cpucfg.h"
+#include "hw/misc/allwinner-h3-dramc.h"
 #include "hw/misc/allwinner-h3-sysctrl.h"
 #include "hw/misc/allwinner-sid.h"
 #include "hw/sd/allwinner-sdhost.h"
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_UART2,
     AW_H3_UART3,
     AW_H3_EMAC,
+    AW_H3_DRAMCOM,
+    AW_H3_DRAMCTL,
+    AW_H3_DRAMPHY,
     AW_H3_GIC_DIST,
     AW_H3_GIC_CPU,
     AW_H3_GIC_HYP,
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
     AwA10PITState timer;
     AwH3ClockCtlState ccu;
     AwCpuCfgState cpucfg;
+    AwH3DramCtlState dramc;
     AwH3SysCtrlState sysctrl;
     AwSidState sid;
     AwSdHostState mmc0;
diff --git a/include/hw/misc/allwinner-h3-dramc.h b/include/hw/misc/allwinner-h3-dramc.h
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/include/hw/misc/allwinner-h3-dramc.h
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner H3 SDRAM Controller emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_MISC_ALLWINNER_H3_DRAMC_H
+#define HW_MISC_ALLWINNER_H3_DRAMC_H
+
+#include "qom/object.h"
+#include "hw/sysbus.h"
+#include "exec/hwaddr.h"
+
+/**
+ * Constants
+ * @{
+ */
+
+/** Highest register address used by DRAMCOM module */
+#define AW_H3_DRAMCOM_REGS_MAXADDR  (0x804)
+
+/** Total number of known DRAMCOM registers */
+#define AW_H3_DRAMCOM_REGS_NUM      (AW_H3_DRAMCOM_REGS_MAXADDR / \
+                                     sizeof(uint32_t))
+
+/** Highest register address used by DRAMCTL module */
+#define AW_H3_DRAMCTL_REGS_MAXADDR  (0x88c)
+
+/** Total number of known DRAMCTL registers */
+#define AW_H3_DRAMCTL_REGS_NUM      (AW_H3_DRAMCTL_REGS_MAXADDR / \
+                                     sizeof(uint32_t))
+
+/** Highest register address used by DRAMPHY module */
+#define AW_H3_DRAMPHY_REGS_MAXADDR  (0x4)
+
+/** Total number of known DRAMPHY registers */
+#define AW_H3_DRAMPHY_REGS_NUM      (AW_H3_DRAMPHY_REGS_MAXADDR / \
+                                     sizeof(uint32_t))
+
+/** @} */
+
+/**
+ * Object model
+ * @{
+ */
+
+#define TYPE_AW_H3_DRAMC "allwinner-h3-dramc"
+#define AW_H3_DRAMC(obj) \
+    OBJECT_CHECK(AwH3DramCtlState, (obj), TYPE_AW_H3_DRAMC)
+
+/** @} */
+
+/**
+ * Allwinner H3 SDRAM Controller object instance state.
+ */
+typedef struct AwH3DramCtlState {
+    /*< private >*/
+    SysBusDevice parent_obj;
+    /*< public >*/
+
+    /** Physical base address for start of RAM */
+    hwaddr ram_addr;
+
+    /** Total RAM size in megabytes */
+    uint32_t ram_size;
+
+    /**
+     * @name Memory Regions
+     * @{
+     */
+
+    MemoryRegion row_mirror;       /**< Simulates rows for RAM size detection */
+    MemoryRegion row_mirror_alias; /**< Alias of the row which is mirrored */
+    MemoryRegion dramcom_iomem;    /**< DRAMCOM module I/O registers */
+    MemoryRegion dramctl_iomem;    /**< DRAMCTL module I/O registers */
+    MemoryRegion dramphy_iomem;    /**< DRAMPHY module I/O registers */
+
+    /** @} */
+
+    /**
+     * @name Hardware Registers
+     * @{
+     */
+
+    uint32_t dramcom[AW_H3_DRAMCOM_REGS_NUM]; /**< Array of DRAMCOM registers */
+    uint32_t dramctl[AW_H3_DRAMCTL_REGS_NUM]; /**< Array of DRAMCTL registers */
+    uint32_t dramphy[AW_H3_DRAMPHY_REGS_NUM] ;/**< Array of DRAMPHY registers */
+
+    /** @} */
+
+} AwH3DramCtlState;
+
+#endif /* HW_MISC_ALLWINNER_H3_DRAMC_H */
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_UART2]      = 0x01c28800,
     [AW_H3_UART3]      = 0x01c28c00,
     [AW_H3_EMAC]       = 0x01c30000,
+    [AW_H3_DRAMCOM]    = 0x01c62000,
+    [AW_H3_DRAMCTL]    = 0x01c63000,
+    [AW_H3_DRAMPHY]    = 0x01c65000,
     [AW_H3_GIC_DIST]   = 0x01c81000,
     [AW_H3_GIC_CPU]    = 0x01c82000,
     [AW_H3_GIC_HYP]    = 0x01c84000,
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
     { "scr",       0x01c2c400, 1 * KiB },
     { "gpu",       0x01c40000, 64 * KiB },
     { "hstmr",     0x01c60000, 4 * KiB },
-    { "dramcom",   0x01c62000, 4 * KiB },
-    { "dramctl0",  0x01c63000, 4 * KiB },
-    { "dramphy0",  0x01c65000, 4 * KiB },
     { "spi0",      0x01c68000, 4 * KiB },
     { "spi1",      0x01c69000, 4 * KiB },
     { "csi",       0x01cb0000, 320 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
 
     sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
                           TYPE_AW_SUN8I_EMAC);
+
+    sysbus_init_child_obj(obj, "dramc", &s->dramc, sizeof(s->dramc),
+                          TYPE_AW_H3_DRAMC);
+    object_property_add_alias(obj, "ram-addr", OBJECT(&s->dramc),
+                             "ram-addr", &error_abort);
+    object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
+                              "ram-size", &error_abort);
 }
 
 static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
                    qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3),
                    115200, serial_hd(3), DEVICE_NATIVE_ENDIAN);
 
+    /* DRAMC */
+    qdev_init_nofail(DEVICE(&s->dramc));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 0, s->memmap[AW_H3_DRAMCOM]);
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, s->memmap[AW_H3_DRAMCTL]);
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, s->memmap[AW_H3_DRAMPHY]);
+
     /* Unimplemented devices */
     for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
         create_unimplemented_device(unimplemented[i].device_name,
diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/orangepi.c
+++ b/hw/arm/orangepi.c
@@ -XXX,XX +XXX,XX @@ static void orangepi_init(MachineState *machine)
     /* Setup EMAC properties */
     object_property_set_int(OBJECT(&h3->emac), 1, "phy-addr", &error_abort);
 
+    /* DRAMC */
+    object_property_set_uint(OBJECT(h3), h3->memmap[AW_H3_SDRAM],
+                             "ram-addr", &error_abort);
+    object_property_set_int(OBJECT(h3), machine->ram_size / MiB, "ram-size",
+                            &error_abort);
+
     /* Mark H3 object realized */
     object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
 
diff --git a/hw/misc/allwinner-h3-dramc.c b/hw/misc/allwinner-h3-dramc.c
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/misc/allwinner-h3-dramc.c
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner H3 SDRAM Controller emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "qemu/error-report.h"
+#include "hw/sysbus.h"
+#include "migration/vmstate.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "exec/address-spaces.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+#include "hw/misc/allwinner-h3-dramc.h"
+#include "trace.h"
+
+#define REG_INDEX(offset)    (offset / sizeof(uint32_t))
+
+/* DRAMCOM register offsets */
+enum {
+    REG_DRAMCOM_CR    = 0x0000, /* Control Register */
+};
+
+/* DRAMCTL register offsets */
+enum {
+    REG_DRAMCTL_PIR   = 0x0000, /* PHY Initialization Register */
+    REG_DRAMCTL_PGSR  = 0x0010, /* PHY General Status Register */
+    REG_DRAMCTL_STATR = 0x0018, /* Status Register */
+};
+
+/* DRAMCTL register flags */
+enum {
+    REG_DRAMCTL_PGSR_INITDONE = (1 << 0),
+};
+
+enum {
+    REG_DRAMCTL_STATR_ACTIVE  = (1 << 0),
+};
+
+static void allwinner_h3_dramc_map_rows(AwH3DramCtlState *s, uint8_t row_bits,
+                                        uint8_t bank_bits, uint16_t page_size)
+{
+    /*
+     * This function simulates row addressing behavior when bootloader
+     * software attempts to detect the amount of available SDRAM. In U-Boot
+     * the controller is configured with the widest row addressing available.
+     * Then a pattern is written to RAM at an offset on the row boundary size.
+     * If the value read back equals the value read back from the
+     * start of RAM, the bootloader knows the amount of row bits.
+     *
+     * This function inserts a mirrored memory region when the configured row
+     * bits are not matching the actual emulated memory, to simulate the
+     * same behavior on hardware as expected by the bootloader.
+     */
+    uint8_t row_bits_actual = 0;
+
+    /* Calculate the actual row bits using the ram_size property */
+    for (uint8_t i = 8; i < 12; i++) {
+        if (1 << i == s->ram_size) {
+            row_bits_actual = i + 3;
+            break;
+        }
+    }
+
+    if (s->ram_size == (1 << (row_bits - 3))) {
+        /* When row bits is the expected value, remove the mirror */
+        memory_region_set_enabled(&s->row_mirror_alias, false);
+        trace_allwinner_h3_dramc_rowmirror_disable();
+
+    } else if (row_bits_actual) {
+        /* Row bits not matching ram_size, install the rows mirror */
+        hwaddr row_mirror = s->ram_addr + ((1 << (row_bits_actual +
+                                                  bank_bits)) * page_size);
+
+        memory_region_set_enabled(&s->row_mirror_alias, true);
+        memory_region_set_address(&s->row_mirror_alias, row_mirror);
+
+        trace_allwinner_h3_dramc_rowmirror_enable(row_mirror);
+    }
+}
+
+static uint64_t allwinner_h3_dramcom_read(void *opaque, hwaddr offset,
+                                          unsigned size)
+{
+    const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+    const uint32_t idx = REG_INDEX(offset);
+
+    if (idx >= AW_H3_DRAMCOM_REGS_NUM) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return 0;
+    }
+
+    trace_allwinner_h3_dramcom_read(offset, s->dramcom[idx], size);
+
+    return s->dramcom[idx];
+}
+
+static void allwinner_h3_dramcom_write(void *opaque, hwaddr offset,
+                                       uint64_t val, unsigned size)
+{
+    AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+    const uint32_t idx = REG_INDEX(offset);
+
+    trace_allwinner_h3_dramcom_write(offset, val, size);
+
+    if (idx >= AW_H3_DRAMCOM_REGS_NUM) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return;
+    }
+
+    switch (offset) {
+    case REG_DRAMCOM_CR:   /* Control Register */
+        allwinner_h3_dramc_map_rows(s, ((val >> 4) & 0xf) + 1,
+                                       ((val >> 2) & 0x1) + 2,
+                                       1 << (((val >> 8) & 0xf) + 3));
+        break;
+    default:
+        break;
+    };
+
+    s->dramcom[idx] = (uint32_t) val;
+}
+
+static uint64_t allwinner_h3_dramctl_read(void *opaque, hwaddr offset,
+                                          unsigned size)
+{
+    const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+    const uint32_t idx = REG_INDEX(offset);
+
+    if (idx >= AW_H3_DRAMCTL_REGS_NUM) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return 0;
+    }
+
+    trace_allwinner_h3_dramctl_read(offset, s->dramctl[idx], size);
+
+    return s->dramctl[idx];
+}
+
+static void allwinner_h3_dramctl_write(void *opaque, hwaddr offset,
+                                       uint64_t val, unsigned size)
+{
+    AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+    const uint32_t idx = REG_INDEX(offset);
+
+    trace_allwinner_h3_dramctl_write(offset, val, size);
+
+    if (idx >= AW_H3_DRAMCTL_REGS_NUM) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return;
+    }
+
+    switch (offset) {
+    case REG_DRAMCTL_PIR:    /* PHY Initialization Register */
+        s->dramctl[REG_INDEX(REG_DRAMCTL_PGSR)] |= REG_DRAMCTL_PGSR_INITDONE;
+        s->dramctl[REG_INDEX(REG_DRAMCTL_STATR)] |= REG_DRAMCTL_STATR_ACTIVE;
+        break;
+    default:
+        break;
+    }
+
+    s->dramctl[idx] = (uint32_t) val;
+}
+
+static uint64_t allwinner_h3_dramphy_read(void *opaque, hwaddr offset,
+                                          unsigned size)
+{
+    const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+    const uint32_t idx = REG_INDEX(offset);
+
+    if (idx >= AW_H3_DRAMPHY_REGS_NUM) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return 0;
+    }
+
+    trace_allwinner_h3_dramphy_read(offset, s->dramphy[idx], size);
+
+    return s->dramphy[idx];
+}
+
+static void allwinner_h3_dramphy_write(void *opaque, hwaddr offset,
+                                       uint64_t val, unsigned size)
+{
+    AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+    const uint32_t idx = REG_INDEX(offset);
+
+    trace_allwinner_h3_dramphy_write(offset, val, size);
+
+    if (idx >= AW_H3_DRAMPHY_REGS_NUM) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return;
+    }
+
+    s->dramphy[idx] = (uint32_t) val;
+}
+
+static const MemoryRegionOps allwinner_h3_dramcom_ops = {
+    .read = allwinner_h3_dramcom_read,
+    .write = allwinner_h3_dramcom_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static const MemoryRegionOps allwinner_h3_dramctl_ops = {
+    .read = allwinner_h3_dramctl_read,
+    .write = allwinner_h3_dramctl_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static const MemoryRegionOps allwinner_h3_dramphy_ops = {
+    .read = allwinner_h3_dramphy_read,
+    .write = allwinner_h3_dramphy_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static void allwinner_h3_dramc_reset(DeviceState *dev)
+{
+    AwH3DramCtlState *s = AW_H3_DRAMC(dev);
+
+    /* Set default values for registers */
+    memset(&s->dramcom, 0, sizeof(s->dramcom));
+    memset(&s->dramctl, 0, sizeof(s->dramctl));
+    memset(&s->dramphy, 0, sizeof(s->dramphy));
+}
+
+static void allwinner_h3_dramc_realize(DeviceState *dev, Error **errp)
+{
+    AwH3DramCtlState *s = AW_H3_DRAMC(dev);
+
+    /* Only power of 2 RAM sizes from 256MiB up to 2048MiB are supported */
+    for (uint8_t i = 8; i < 13; i++) {
+        if (1 << i == s->ram_size) {
+            break;
+        } else if (i == 12) {
+            error_report("%s: ram-size %u MiB is not supported",
+                          __func__, s->ram_size);
+            exit(1);
+        }
+    }
+
+    /* Setup row mirror mappings */
+    memory_region_init_ram(&s->row_mirror, OBJECT(s),
+                           "allwinner-h3-dramc.row-mirror",
+                            4 * KiB, &error_abort);
+    memory_region_add_subregion_overlap(get_system_memory(), s->ram_addr,
+                                       &s->row_mirror, 10);
+
+    memory_region_init_alias(&s->row_mirror_alias, OBJECT(s),
+                            "allwinner-h3-dramc.row-mirror-alias",
+                            &s->row_mirror, 0, 4 * KiB);
+    memory_region_add_subregion_overlap(get_system_memory(),
+                                        s->ram_addr + 1 * MiB,
+                                       &s->row_mirror_alias, 10);
+    memory_region_set_enabled(&s->row_mirror_alias, false);
+}
+
+static void allwinner_h3_dramc_init(Object *obj)
+{
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    AwH3DramCtlState *s = AW_H3_DRAMC(obj);
+
+    /* DRAMCOM registers */
+    memory_region_init_io(&s->dramcom_iomem, OBJECT(s),
+                          &allwinner_h3_dramcom_ops, s,
+                           TYPE_AW_H3_DRAMC, 4 * KiB);
+    sysbus_init_mmio(sbd, &s->dramcom_iomem);
+
+    /* DRAMCTL registers */
+    memory_region_init_io(&s->dramctl_iomem, OBJECT(s),
+                          &allwinner_h3_dramctl_ops, s,
+                           TYPE_AW_H3_DRAMC, 4 * KiB);
+    sysbus_init_mmio(sbd, &s->dramctl_iomem);
+
+    /* DRAMPHY registers */
+    memory_region_init_io(&s->dramphy_iomem, OBJECT(s),
+                          &allwinner_h3_dramphy_ops, s,
+                          TYPE_AW_H3_DRAMC, 4 * KiB);
+    sysbus_init_mmio(sbd, &s->dramphy_iomem);
+}
+
+static Property allwinner_h3_dramc_properties[] = {
+    DEFINE_PROP_UINT64("ram-addr", AwH3DramCtlState, ram_addr, 0x0),
+    DEFINE_PROP_UINT32("ram-size", AwH3DramCtlState, ram_size, 256 * MiB),
+    DEFINE_PROP_END_OF_LIST()
+};
+
+static const VMStateDescription allwinner_h3_dramc_vmstate = {
+    .name = "allwinner-h3-dramc",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32_ARRAY(dramcom, AwH3DramCtlState, AW_H3_DRAMCOM_REGS_NUM),
+        VMSTATE_UINT32_ARRAY(dramctl, AwH3DramCtlState, AW_H3_DRAMCTL_REGS_NUM),
+        VMSTATE_UINT32_ARRAY(dramphy, AwH3DramCtlState, AW_H3_DRAMPHY_REGS_NUM),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void allwinner_h3_dramc_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->reset = allwinner_h3_dramc_reset;
+    dc->vmsd = &allwinner_h3_dramc_vmstate;
+    dc->realize = allwinner_h3_dramc_realize;
+    device_class_set_props(dc, allwinner_h3_dramc_properties);
+}
+
+static const TypeInfo allwinner_h3_dramc_info = {
+    .name          = TYPE_AW_H3_DRAMC,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_init = allwinner_h3_dramc_init,
+    .instance_size = sizeof(AwH3DramCtlState),
+    .class_init    = allwinner_h3_dramc_class_init,
+};
+
+static void allwinner_h3_dramc_register(void)
+{
+    type_register_static(&allwinner_h3_dramc_info);
+}
+
+type_init(allwinner_h3_dramc_register)
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index XXXXXXX..XXXXXXX 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -XXX,XX +XXX,XX @@ allwinner_cpucfg_cpu_reset(uint8_t cpu_id, uint32_t reset_addr) "id %u, reset_ad
 allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 
+# allwinner-h3-dramc.c
+allwinner_h3_dramc_rowmirror_disable(void) "Disable row mirror"
+allwinner_h3_dramc_rowmirror_enable(uint64_t addr) "Enable row mirror: addr 0x%" PRIx64
+allwinner_h3_dramcom_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramcom_write(uint64_t offset, uint64_t data, unsigned size) "Write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramctl_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramctl_write(uint64_t offset, uint64_t data, unsigned size) "Write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramphy_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramphy_write(uint64_t offset, uint64_t data, unsigned size) "write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+
 # allwinner-sid.c
 allwinner_sid_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
 allwinner_sid_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

Allwinner System-on-Chips usually contain a Real Time Clock (RTC)
for non-volatile system date and time keeping. This commit adds a generic
Allwinner RTC device that supports the RTC devices found in Allwinner SoC
family sun4i (A10), sun7i (A20) and sun6i and newer (A31, H2+, H3, etc).
The following RTC functionality and features are implemented:

* Year-Month-Day read/write
 * Hour-Minute-Second read/write
 * General Purpose storage

The following boards are extended with the RTC device:

* Cubieboard (hw/arm/cubieboard.c)
 * Orange Pi PC (hw/arm/orangepi.c)

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-13-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/rtc/Makefile.objs           |   1 +
 include/hw/arm/allwinner-a10.h |   2 +
 include/hw/arm/allwinner-h3.h  |   3 +
 include/hw/rtc/allwinner-rtc.h | 134 +++++++++++
 hw/arm/allwinner-a10.c         |   8 +
 hw/arm/allwinner-h3.c          |   9 +-
 hw/rtc/allwinner-rtc.c         | 411 +++++++++++++++++++++++++++++++++
 hw/rtc/trace-events            |   4 +
 8 files changed, 571 insertions(+), 1 deletion(-)
 create mode 100644 include/hw/rtc/allwinner-rtc.h
 create mode 100644 hw/rtc/allwinner-rtc.c

diff --git a/hw/rtc/Makefile.objs b/hw/rtc/Makefile.objs
index XXXXXXX..XXXXXXX 100644
--- a/hw/rtc/Makefile.objs
+++ b/hw/rtc/Makefile.objs
@@ -XXX,XX +XXX,XX @@ obj-$(CONFIG_MC146818RTC) += mc146818rtc.o
 common-obj-$(CONFIG_SUN4V_RTC) += sun4v-rtc.o
 common-obj-$(CONFIG_ASPEED_SOC) += aspeed_rtc.o
 common-obj-$(CONFIG_GOLDFISH_RTC) += goldfish_rtc.o
+common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-rtc.o
diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-a10.h
+++ b/include/hw/arm/allwinner-a10.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/ide/ahci.h"
 #include "hw/usb/hcd-ohci.h"
 #include "hw/usb/hcd-ehci.h"
+#include "hw/rtc/allwinner-rtc.h"
 
 #include "target/arm/cpu.h"
 
@@ -XXX,XX +XXX,XX @@ typedef struct AwA10State {
     AwEmacState emac;
     AllwinnerAHCIState sata;
     AwSdHostState mmc0;
+    AwRtcState rtc;
     MemoryRegion sram_a;
     EHCISysBusState ehci[AW_A10_NUM_USB];
     OHCISysBusState ohci[AW_A10_NUM_USB];
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -XXX,XX +XXX,XX @@
 #include "hw/misc/allwinner-sid.h"
 #include "hw/sd/allwinner-sdhost.h"
 #include "hw/net/allwinner-sun8i-emac.h"
+#include "hw/rtc/allwinner-rtc.h"
 #include "target/arm/cpu.h"
 #include "sysemu/block-backend.h"
 
@@ -XXX,XX +XXX,XX @@ enum {
     AW_H3_GIC_CPU,
     AW_H3_GIC_HYP,
     AW_H3_GIC_VCPU,
+    AW_H3_RTC,
     AW_H3_CPUCFG,
     AW_H3_SDRAM
 };
@@ -XXX,XX +XXX,XX @@ typedef struct AwH3State {
     AwSidState sid;
     AwSdHostState mmc0;
     AwSun8iEmacState emac;
+    AwRtcState rtc;
     GICState gic;
     MemoryRegion sram_a1;
     MemoryRegion sram_a2;
diff --git a/include/hw/rtc/allwinner-rtc.h b/include/hw/rtc/allwinner-rtc.h
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/include/hw/rtc/allwinner-rtc.h
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner Real Time Clock emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_MISC_ALLWINNER_RTC_H
+#define HW_MISC_ALLWINNER_RTC_H
+
+#include "qom/object.h"
+#include "hw/sysbus.h"
+
+/**
+ * Constants
+ * @{
+ */
+
+/** Highest register address used by RTC device */
+#define AW_RTC_REGS_MAXADDR     (0x200)
+
+/** Total number of known registers */
+#define AW_RTC_REGS_NUM         (AW_RTC_REGS_MAXADDR / sizeof(uint32_t))
+
+/** @} */
+
+/**
+ * Object model types
+ * @{
+ */
+
+/** Generic Allwinner RTC device (abstract) */
+#define TYPE_AW_RTC          "allwinner-rtc"
+
+/** Allwinner RTC sun4i family (A10, A12) */
+#define TYPE_AW_RTC_SUN4I    TYPE_AW_RTC "-sun4i"
+
+/** Allwinner RTC sun6i family and newer (A31, H2+, H3, etc) */
+#define TYPE_AW_RTC_SUN6I    TYPE_AW_RTC "-sun6i"
+
+/** Allwinner RTC sun7i family (A20) */
+#define TYPE_AW_RTC_SUN7I    TYPE_AW_RTC "-sun7i"
+
+/** @} */
+
+/**
+ * Object model macros
+ * @{
+ */
+
+#define AW_RTC(obj) \
+    OBJECT_CHECK(AwRtcState, (obj), TYPE_AW_RTC)
+#define AW_RTC_CLASS(klass) \
+     OBJECT_CLASS_CHECK(AwRtcClass, (klass), TYPE_AW_RTC)
+#define AW_RTC_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(AwRtcClass, (obj), TYPE_AW_RTC)
+
+/** @} */
+
+/**
+ * Allwinner RTC per-object instance state.
+ */
+typedef struct AwRtcState {
+    /*< private >*/
+    SysBusDevice parent_obj;
+    /*< public >*/
+
+    /**
+     * Actual year represented by the device when year counter is zero
+     *
+     * Can be overridden by the user using the corresponding 'base-year'
+     * property. The base year used by the target OS driver can vary, for
+     * example the Linux driver for sun6i uses 1970 while NetBSD uses 2000.
+     */
+    int base_year;
+
+    /** Maps I/O registers in physical memory */
+    MemoryRegion iomem;
+
+    /** Array of hardware registers */
+    uint32_t regs[AW_RTC_REGS_NUM];
+
+} AwRtcState;
+
+/**
+ * Allwinner RTC class-level struct.
+ *
+ * This struct is filled by each sunxi device specific code
+ * such that the generic code can use this struct to support
+ * all devices.
+ */
+typedef struct AwRtcClass {
+    /*< private >*/
+    SysBusDeviceClass parent_class;
+    /*< public >*/
+
+    /** Defines device specific register map */
+    const uint8_t *regmap;
+
+    /** Size of the regmap in bytes */
+    size_t regmap_size;
+
+    /**
+     * Read device specific register
+     *
+     * @offset: register offset to read
+     * @return true if register read successful, false otherwise
+     */
+    bool (*read)(AwRtcState *s, uint32_t offset);
+
+    /**
+     * Write device specific register
+     *
+     * @offset: register offset to write
+     * @data: value to set in register
+     * @return true if register write successful, false otherwise
+     */
+    bool (*write)(AwRtcState *s, uint32_t offset, uint32_t data);
+
+} AwRtcClass;
+
+#endif /* HW_MISC_ALLWINNER_RTC_H */
diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-a10.c
+++ b/hw/arm/allwinner-a10.c
@@ -XXX,XX +XXX,XX @@
 #define AW_A10_EHCI_BASE        0x01c14000
 #define AW_A10_OHCI_BASE        0x01c14400
 #define AW_A10_SATA_BASE        0x01c18000
+#define AW_A10_RTC_BASE         0x01c20d00
 
 static void aw_a10_init(Object *obj)
 {
@@ -XXX,XX +XXX,XX @@ static void aw_a10_init(Object *obj)
 
     sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
                           TYPE_AW_SDHOST_SUN4I);
+
+    sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
+                          TYPE_AW_RTC_SUN4I);
 }
 
 static void aw_a10_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
     sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0, qdev_get_gpio_in(dev, 32));
     object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
                               "sd-bus", &error_abort);
+
+    /* RTC */
+    qdev_init_nofail(DEVICE(&s->rtc));
+    sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->rtc), 0, AW_A10_RTC_BASE, 10);
 }
 
 static void aw_a10_class_init(ObjectClass *oc, void *data)
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -XXX,XX +XXX,XX @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_GIC_CPU]    = 0x01c82000,
     [AW_H3_GIC_HYP]    = 0x01c84000,
     [AW_H3_GIC_VCPU]   = 0x01c86000,
+    [AW_H3_RTC]        = 0x01f00000,
     [AW_H3_CPUCFG]     = 0x01f01c00,
     [AW_H3_SDRAM]      = 0x40000000
 };
@@ -XXX,XX +XXX,XX @@ struct AwH3Unimplemented {
     { "csi",       0x01cb0000, 320 * KiB },
     { "tve",       0x01e00000, 64 * KiB },
     { "hdmi",      0x01ee0000, 128 * KiB },
-    { "rtc",       0x01f00000, 1 * KiB },
     { "r_timer",   0x01f00800, 1 * KiB },
     { "r_intc",    0x01f00c00, 1 * KiB },
     { "r_wdog",    0x01f01000, 1 * KiB },
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_init(Object *obj)
                              "ram-addr", &error_abort);
     object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
                               "ram-size", &error_abort);
+
+    sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
+                          TYPE_AW_RTC_SUN6I);
 }
 
 static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -XXX,XX +XXX,XX @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, s->memmap[AW_H3_DRAMCTL]);
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, s->memmap[AW_H3_DRAMPHY]);
 
+    /* RTC */
+    qdev_init_nofail(DEVICE(&s->rtc));
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, s->memmap[AW_H3_RTC]);
+
     /* Unimplemented devices */
     for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
         create_unimplemented_device(unimplemented[i].device_name,
diff --git a/hw/rtc/allwinner-rtc.c b/hw/rtc/allwinner-rtc.c
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/hw/rtc/allwinner-rtc.c
@@ -XXX,XX +XXX,XX @@
+/*
+ * Allwinner Real Time Clock emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/sysbus.h"
+#include "migration/vmstate.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qemu-common.h"
+#include "hw/qdev-properties.h"
+#include "hw/rtc/allwinner-rtc.h"
+#include "trace.h"
+
+/* RTC registers */
+enum {
+    REG_LOSC = 1,        /* Low Oscillator Control */
+    REG_YYMMDD,          /* RTC Year-Month-Day */
+    REG_HHMMSS,          /* RTC Hour-Minute-Second */
+    REG_ALARM1_WKHHMMSS, /* Alarm1 Week Hour-Minute-Second */
+    REG_ALARM1_EN,       /* Alarm1 Enable */
+    REG_ALARM1_IRQ_EN,   /* Alarm1 IRQ Enable */
+    REG_ALARM1_IRQ_STA,  /* Alarm1 IRQ Status */
+    REG_GP0,             /* General Purpose Register 0 */
+    REG_GP1,             /* General Purpose Register 1 */
+    REG_GP2,             /* General Purpose Register 2 */
+    REG_GP3,             /* General Purpose Register 3 */
+
+    /* sun4i registers */
+    REG_ALARM1_DDHHMMSS, /* Alarm1 Day Hour-Minute-Second */
+    REG_CPUCFG,          /* CPU Configuration Register */
+
+    /* sun6i registers */
+    REG_LOSC_AUTOSTA,    /* LOSC Auto Switch Status */
+    REG_INT_OSC_PRE,     /* Internal OSC Clock Prescaler */
+    REG_ALARM0_COUNTER,  /* Alarm0 Counter */
+    REG_ALARM0_CUR_VLU,  /* Alarm0 Counter Current Value */
+    REG_ALARM0_ENABLE,   /* Alarm0 Enable */
+    REG_ALARM0_IRQ_EN,   /* Alarm0 IRQ Enable */
+    REG_ALARM0_IRQ_STA,  /* Alarm0 IRQ Status */
+    REG_ALARM_CONFIG,    /* Alarm Config */
+    REG_LOSC_OUT_GATING, /* LOSC Output Gating Register */
+    REG_GP4,             /* General Purpose Register 4 */
+    REG_GP5,             /* General Purpose Register 5 */
+    REG_GP6,             /* General Purpose Register 6 */
+    REG_GP7,             /* General Purpose Register 7 */
+    REG_RTC_DBG,         /* RTC Debug Register */
+    REG_GPL_HOLD_OUT,    /* GPL Hold Output Register */
+    REG_VDD_RTC,         /* VDD RTC Regulate Register */
+    REG_IC_CHARA,        /* IC Characteristics Register */
+};
+
+/* RTC register flags */
+enum {
+    REG_LOSC_YMD   = (1 << 7),
+    REG_LOSC_HMS   = (1 << 8),
+};
+
+/* RTC sun4i register map (offset to name) */
+const uint8_t allwinner_rtc_sun4i_regmap[] = {
+    [0x0000] = REG_LOSC,
+    [0x0004] = REG_YYMMDD,
+    [0x0008] = REG_HHMMSS,
+    [0x000C] = REG_ALARM1_DDHHMMSS,
+    [0x0010] = REG_ALARM1_WKHHMMSS,
+    [0x0014] = REG_ALARM1_EN,
+    [0x0018] = REG_ALARM1_IRQ_EN,
+    [0x001C] = REG_ALARM1_IRQ_STA,
+    [0x0020] = REG_GP0,
+    [0x0024] = REG_GP1,
+    [0x0028] = REG_GP2,
+    [0x002C] = REG_GP3,
+    [0x003C] = REG_CPUCFG,
+};
+
+/* RTC sun6i register map (offset to name) */
+const uint8_t allwinner_rtc_sun6i_regmap[] = {
+    [0x0000] = REG_LOSC,
+    [0x0004] = REG_LOSC_AUTOSTA,
+    [0x0008] = REG_INT_OSC_PRE,
+    [0x0010] = REG_YYMMDD,
+    [0x0014] = REG_HHMMSS,
+    [0x0020] = REG_ALARM0_COUNTER,
+    [0x0024] = REG_ALARM0_CUR_VLU,
+    [0x0028] = REG_ALARM0_ENABLE,
+    [0x002C] = REG_ALARM0_IRQ_EN,
+    [0x0030] = REG_ALARM0_IRQ_STA,
+    [0x0040] = REG_ALARM1_WKHHMMSS,
+    [0x0044] = REG_ALARM1_EN,
+    [0x0048] = REG_ALARM1_IRQ_EN,
+    [0x004C] = REG_ALARM1_IRQ_STA,
+    [0x0050] = REG_ALARM_CONFIG,
+    [0x0060] = REG_LOSC_OUT_GATING,
+    [0x0100] = REG_GP0,
+    [0x0104] = REG_GP1,
+    [0x0108] = REG_GP2,
+    [0x010C] = REG_GP3,
+    [0x0110] = REG_GP4,
+    [0x0114] = REG_GP5,
+    [0x0118] = REG_GP6,
+    [0x011C] = REG_GP7,
+    [0x0170] = REG_RTC_DBG,
+    [0x0180] = REG_GPL_HOLD_OUT,
+    [0x0190] = REG_VDD_RTC,
+    [0x01F0] = REG_IC_CHARA,
+};
+
+static bool allwinner_rtc_sun4i_read(AwRtcState *s, uint32_t offset)
+{
+    /* no sun4i specific registers currently implemented */
+    return false;
+}
+
+static bool allwinner_rtc_sun4i_write(AwRtcState *s, uint32_t offset,
+                                      uint32_t data)
+{
+    /* no sun4i specific registers currently implemented */
+    return false;
+}
+
+static bool allwinner_rtc_sun6i_read(AwRtcState *s, uint32_t offset)
+{
+    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
+
+    switch (c->regmap[offset]) {
+    case REG_GP4:             /* General Purpose Register 4 */
+    case REG_GP5:             /* General Purpose Register 5 */
+    case REG_GP6:             /* General Purpose Register 6 */
+    case REG_GP7:             /* General Purpose Register 7 */
+        return true;
+    default:
+        break;
+    }
+    return false;
+}
+
+static bool allwinner_rtc_sun6i_write(AwRtcState *s, uint32_t offset,
+                                      uint32_t data)
+{
+    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
+
+    switch (c->regmap[offset]) {
+    case REG_GP4:             /* General Purpose Register 4 */
+    case REG_GP5:             /* General Purpose Register 5 */
+    case REG_GP6:             /* General Purpose Register 6 */
+    case REG_GP7:             /* General Purpose Register 7 */
+        return true;
+    default:
+        break;
+    }
+    return false;
+}
+
+static uint64_t allwinner_rtc_read(void *opaque, hwaddr offset,
+                                   unsigned size)
+{
+    AwRtcState *s = AW_RTC(opaque);
+    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
+    uint64_t val = 0;
+
+    if (offset >= c->regmap_size) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return 0;
+    }
+
+    if (!c->regmap[offset]) {
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid register 0x%04x\n",
+                          __func__, (uint32_t)offset);
+        return 0;
+    }
+
+    switch (c->regmap[offset]) {
+    case REG_LOSC:       /* Low Oscillator Control */
+        val = s->regs[REG_LOSC];
+        s->regs[REG_LOSC] &= ~(REG_LOSC_YMD | REG_LOSC_HMS);
+        break;
+    case REG_YYMMDD:     /* RTC Year-Month-Day */
+    case REG_HHMMSS:     /* RTC Hour-Minute-Second */
+    case REG_GP0:        /* General Purpose Register 0 */
+    case REG_GP1:        /* General Purpose Register 1 */
+    case REG_GP2:        /* General Purpose Register 2 */
+    case REG_GP3:        /* General Purpose Register 3 */
+        val = s->regs[c->regmap[offset]];
+        break;
+    default:
+        if (!c->read(s, offset)) {
+            qemu_log_mask(LOG_UNIMP, "%s: unimplemented register 0x%04x\n",
+                          __func__, (uint32_t)offset);
+        }
+        val = s->regs[c->regmap[offset]];
+        break;
+    }
+
+    trace_allwinner_rtc_read(offset, val);
+    return val;
+}
+
+static void allwinner_rtc_write(void *opaque, hwaddr offset,
+                                uint64_t val, unsigned size)
+{
+    AwRtcState *s = AW_RTC(opaque);
+    const AwRtcClass *c = AW_RTC_GET_CLASS(s);
+
+    if (offset >= c->regmap_size) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+                      __func__, (uint32_t)offset);
+        return;
+    }
+
+    if (!c->regmap[offset]) {
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid register 0x%04x\n",
+                          __func__, (uint32_t)offset);
+        return;
+    }
+
+    trace_allwinner_rtc_write(offset, val);
+
+    switch (c->regmap[offset]) {
+    case REG_YYMMDD:     /* RTC Year-Month-Day */
+        s->regs[REG_YYMMDD] = val;
+        s->regs[REG_LOSC]  |= REG_LOSC_YMD;
+        break;
+    case REG_HHMMSS:     /* RTC Hour-Minute-Second */
+        s->regs[REG_HHMMSS] = val;
+        s->regs[REG_LOSC]  |= REG_LOSC_HMS;
+        break;
+    case REG_GP0:        /* General Purpose Register 0 */
+    case REG_GP1:        /* General Purpose Register 1 */
+    case REG_GP2:        /* General Purpose Register 2 */
+    case REG_GP3:        /* General Purpose Register 3 */
+        s->regs[c->regmap[offset]] = val;
+        break;
+    default:
+        if (!c->write(s, offset, val)) {
+            qemu_log_mask(LOG_UNIMP, "%s: unimplemented register 0x%04x\n",
+                          __func__, (uint32_t)offset);
+        }
+        break;
+    }
+}
+
+static const MemoryRegionOps allwinner_rtc_ops = {
+    .read = allwinner_rtc_read,
+    .write = allwinner_rtc_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+    .impl.min_access_size = 4,
+};
+
+static void allwinner_rtc_reset(DeviceState *dev)
+{
+    AwRtcState *s = AW_RTC(dev);
+    struct tm now;
+
+    /* Clear registers */
+    memset(s->regs, 0, sizeof(s->regs));
+
+    /* Get current datetime */
+    qemu_get_timedate(&now, 0);
+
+    /* Set RTC with current datetime */
+    if (s->base_year > 1900) {
+        s->regs[REG_YYMMDD] =  ((now.tm_year + 1900 - s->base_year) << 16) |
+                               ((now.tm_mon + 1) << 8) |
+                                 now.tm_mday;
+        s->regs[REG_HHMMSS] = (((now.tm_wday + 6) % 7) << 29) |
+                                  (now.tm_hour << 16) |
+                                  (now.tm_min << 8) |
+                                   now.tm_sec;
+    }
+}
+
+static void allwinner_rtc_init(Object *obj)
+{
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    AwRtcState *s = AW_RTC(obj);
+
+    /* Memory mapping */
+    memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_rtc_ops, s,
+                          TYPE_AW_RTC, 1 * KiB);
+    sysbus_init_mmio(sbd, &s->iomem);
+}
+
+static const VMStateDescription allwinner_rtc_vmstate = {
+    .name = "allwinner-rtc",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32_ARRAY(regs, AwRtcState, AW_RTC_REGS_NUM),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static Property allwinner_rtc_properties[] = {
+    DEFINE_PROP_INT32("base-year", AwRtcState, base_year, 0),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void allwinner_rtc_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->reset = allwinner_rtc_reset;
+    dc->vmsd = &allwinner_rtc_vmstate;
+    device_class_set_props(dc, allwinner_rtc_properties);
+}
+
+static void allwinner_rtc_sun4i_init(Object *obj)
+{
+    AwRtcState *s = AW_RTC(obj);
+    s->base_year = 2010;
+}
+
+static void allwinner_rtc_sun4i_class_init(ObjectClass *klass, void *data)
+{
+    AwRtcClass *arc = AW_RTC_CLASS(klass);
+
+    arc->regmap = allwinner_rtc_sun4i_regmap;
+    arc->regmap_size = sizeof(allwinner_rtc_sun4i_regmap);
+    arc->read = allwinner_rtc_sun4i_read;
+    arc->write = allwinner_rtc_sun4i_write;
+}
+
+static void allwinner_rtc_sun6i_init(Object *obj)
+{
+    AwRtcState *s = AW_RTC(obj);
+    s->base_year = 1970;
+}
+
+static void allwinner_rtc_sun6i_class_init(ObjectClass *klass, void *data)
+{
+    AwRtcClass *arc = AW_RTC_CLASS(klass);
+
+    arc->regmap = allwinner_rtc_sun6i_regmap;
+    arc->regmap_size = sizeof(allwinner_rtc_sun6i_regmap);
+    arc->read = allwinner_rtc_sun6i_read;
+    arc->write = allwinner_rtc_sun6i_write;
+}
+
+static void allwinner_rtc_sun7i_init(Object *obj)
+{
+    AwRtcState *s = AW_RTC(obj);
+    s->base_year = 1970;
+}
+
+static void allwinner_rtc_sun7i_class_init(ObjectClass *klass, void *data)
+{
+    AwRtcClass *arc = AW_RTC_CLASS(klass);
+    allwinner_rtc_sun4i_class_init(klass, arc);
+}
+
+static const TypeInfo allwinner_rtc_info = {
+    .name          = TYPE_AW_RTC,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_init = allwinner_rtc_init,
+    .instance_size = sizeof(AwRtcState),
+    .class_init    = allwinner_rtc_class_init,
+    .class_size    = sizeof(AwRtcClass),
+    .abstract      = true,
+};
+
+static const TypeInfo allwinner_rtc_sun4i_info = {
+    .name          = TYPE_AW_RTC_SUN4I,
+    .parent        = TYPE_AW_RTC,
+    .class_init    = allwinner_rtc_sun4i_class_init,
+    .instance_init = allwinner_rtc_sun4i_init,
+};
+
+static const TypeInfo allwinner_rtc_sun6i_info = {
+    .name          = TYPE_AW_RTC_SUN6I,
+    .parent        = TYPE_AW_RTC,
+    .class_init    = allwinner_rtc_sun6i_class_init,
+    .instance_init = allwinner_rtc_sun6i_init,
+};
+
+static const TypeInfo allwinner_rtc_sun7i_info = {
+    .name          = TYPE_AW_RTC_SUN7I,
+    .parent        = TYPE_AW_RTC,
+    .class_init    = allwinner_rtc_sun7i_class_init,
+    .instance_init = allwinner_rtc_sun7i_init,
+};
+
+static void allwinner_rtc_register(void)
+{
+    type_register_static(&allwinner_rtc_info);
+    type_register_static(&allwinner_rtc_sun4i_info);
+    type_register_static(&allwinner_rtc_sun6i_info);
+    type_register_static(&allwinner_rtc_sun7i_info);
+}
+
+type_init(allwinner_rtc_register)
diff --git a/hw/rtc/trace-events b/hw/rtc/trace-events
index XXXXXXX..XXXXXXX 100644
--- a/hw/rtc/trace-events
+++ b/hw/rtc/trace-events
@@ -XXX,XX +XXX,XX @@
 # See docs/devel/tracing.txt for syntax documentation.
 
+# allwinner-rtc.c
+allwinner_rtc_read(uint64_t addr, uint64_t value) "addr 0x%" PRIx64 " value 0x%" PRIx64
+allwinner_rtc_write(uint64_t addr, uint64_t value) "addr 0x%" PRIx64 " value 0x%" PRIx64
+
 # sun4v-rtc.c
 sun4v_rtc_read(uint64_t addr, uint64_t value) "read: addr 0x%" PRIx64 " value 0x%" PRIx64
 sun4v_rtc_write(uint64_t addr, uint64_t value) "write: addr 0x%" PRIx64 " value 0x%" PRIx64
-- 
2.20.1

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

This test boots a Linux kernel on a OrangePi PC board and verify
the serial output is working.

The kernel image and DeviceTree blob are built by the Armbian
project (based on Debian):
https://www.armbian.com/orange-pi-pc/

If ARM is a target being built, "make check-acceptance" will
automatically include this test by the use of the "arch:arm" tags.

Alternatively, this test can be run using:

$ make check-venv
  $ ./tests/venv/bin/avocado --show=console,app run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
  JOB ID     : 2e4d15eceb13c33672af406f08171e6e9de1414a
  JOB LOG    : ~/job-results/job-2019-12-17T05.46-2e4d15e/job.log
  (1/1) tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_orangepi:
  console: Uncompressing Linux... done, booting the kernel.
  console: Booting Linux on physical CPU 0x0
  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
  console: CPU: div instructions available: patching division code
  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
  console: OF: fdt: Machine model: Xunlong Orange Pi PC
  console: Memory policy: Data cache writealloc
  console: OF: reserved mem: failed to allocate memory for node 'cma@4a000000'
  console: cma: Failed to reserve 128 MiB
  console: psci: probing for conduit method from DT.
  console: psci: PSCIv0.2 detected in firmware.
  console: psci: Using standard PSCI v0.2 function IDs
  console: psci: Trusted OS migration not required
  console: random: get_random_bytes called from start_kernel+0x8d/0x3c2 with crng_init=0
  console: percpu: Embedded 18 pages/cpu @(ptrval) s41228 r8192 d24308 u73728
  console: Built 1 zonelists, mobility grouping on.  Total pages: 32480
  console: Kernel command line: printk.time=0 console=ttyS0,115200
  PASS (8.59 s)
  JOB TIME   : 8.81 s

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-14-nieklinnenbank@gmail.com
[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tests/acceptance/boot_linux_console.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

This test boots a Linux kernel on a OrangePi PC board and verify
the serial output is working.

The kernel image and DeviceTree blob are built by the Armbian
project (based on Debian):
https://www.armbian.com/orange-pi-pc/

The cpio image used comes from the linux-build-test project:
https://github.com/groeck/linux-build-test

If ARM is a target being built, "make check-acceptance" will
automatically include this test by the use of the "arch:arm" tags.

Alternatively, this test can be run using:

$ avocado --show=console run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
  console: Uncompressing Linux... done, booting the kernel.
  console: Booting Linux on physical CPU 0x0
  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
  console: CPU: div instructions available: patching division code
  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
  console: OF: fdt: Machine model: Xunlong Orange Pi PC
  [...]
  console: Trying to unpack rootfs image as initramfs...
  console: Freeing initrd memory: 3256K
  console: Freeing unused kernel memory: 1024K
  console: Run /init as init process
  console: mount: mounting devtmpfs on /dev failed: Device or resource busy
  console: Starting logging: OK
  console: Initializing random number generator... random: dd: uninitialized urandom read (512 bytes read)
  console: done.
  console: Starting network: OK
  console: Found console ttyS0
  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
  console: Boot successful.
  console: cat /proc/cpuinfo
  console: / # cat /proc/cpuinfo
  console: processor      : 0
  console: model name     : ARMv7 Processor rev 5 (v7l)
  console: BogoMIPS       : 125.00
  console: Features       : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
  console: CPU implementer        : 0x41
  console: CPU architecture: 7
  console: CPU variant    : 0x0
  console: CPU part       : 0xc07
  console: CPU revision   : 5
  [...]
  console: processor      : 3
  console: model name     : ARMv7 Processor rev 5 (v7l)
  console: BogoMIPS       : 125.00
  console: Features       : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
  console: CPU implementer        : 0x41
  console: CPU architecture: 7
  console: CPU variant    : 0x0
  console: CPU part       : 0xc07
  console: CPU revision   : 5
  console: Hardware       : Allwinner sun8i Family
  console: Revision       : 0000
  console: Serial         : 0000000000000000
  console: cat /proc/iomem
  console: / # cat /proc/iomem
  console: 01000000-010fffff : clock@1000000
  console: 01c00000-01c00fff : system-control@1c00000
  console: 01c02000-01c02fff : dma-controller@1c02000
  [...]
  console: reboot
  console: / # reboot
  console: / # Found console ttyS0
  console: Stopping network: OK
  console: hrtimer: interrupt took 21852064 ns
  console: Saving random seed... random: dd: uninitialized urandom read (512 bytes read)
  console: done.
  console: Stopping logging: OK
  console: umount: devtmpfs busy - remounted read-only
  console: umount: can't unmount /: Invalid argument
  console: The system is going down NOW!
  console: Sent SIGTERM to all processes
  console: Sent SIGKILL to all processes
  console: Requesting system reboot
  console: reboot: Restarting system
  PASS (48.32 s)
  JOB TIME   : 49.16 s

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-15-nieklinnenbank@gmail.com
[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tests/acceptance/boot_linux_console.py | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

The kernel image and DeviceTree blob are built by the Armbian
project (based on Debian):
https://www.armbian.com/orange-pi-pc/

The SD image is from the kernelci.org project:
https://kernelci.org/faq/#the-code

If ARM is a target being built, "make check-acceptance" will
automatically include this test by the use of the "arch:arm" tags.

Alternatively, this test can be run using:

$ avocado --show=console run -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
  console: Uncompressing Linux... done, booting the kernel.
  console: Booting Linux on physical CPU 0x0
  console: Linux version 4.20.7-sunxi (root@armbian.com) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #5.75 SMP Fri Feb 8 09:02:10 CET 2019
  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
  [...]
  console: sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
  console: sunxi-mmc 1c0f000.mmc: Linked as a consumer to regulator.2
  console: sunxi-mmc 1c0f000.mmc: Got CD GPIO
  console: ledtrig-cpu: registered to indicate activity on CPUs
  console: hidraw: raw HID events driver (C) Jiri Kosina
  console: usbcore: registered new interface driver usbhid
  console: usbhid: USB HID core driver
  console: Initializing XFRM netlink socket
  console: sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
  console: NET: Registered protocol family 10
  console: mmc0: host does not support reading read-only switch, assuming write-enable
  console: mmc0: Problem switching card into high-speed mode!
  console: mmc0: new SD card at address 4567
  console: mmcblk0: mmc0:4567 QEMU! 60.0 MiB
  [...]
  console: EXT4-fs (mmcblk0): mounting ext2 file system using the ext4 subsystem
  console: EXT4-fs (mmcblk0): mounted filesystem without journal. Opts: (null)
  console: VFS: Mounted root (ext2 filesystem) on device 179:0.
  console: Run /sbin/init as init process
  console: EXT4-fs (mmcblk0): re-mounted. Opts: block_validity,barrier,user_xattr,acl
  console: Starting syslogd: OK
  console: Starting klogd: OK
  console: Populating /dev using udev: udevd[203]: starting version 3.2.7
  console: /bin/sh: can't access tty; job control turned off
  console: cat /proc/partitions
  console: / # cat /proc/partitions
  console: major minor  #blocks  name
  console: 1        0       4096 ram0
  console: 1        1       4096 ram1
  console: 1        2       4096 ram2
  console: 1        3       4096 ram3
  console: 179        0      61440 mmcblk0
  console: reboot
  console: / # reboot
  console: umount: devtmpfs busy - remounted read-only
  console: EXT4-fs (mmcblk0): re-mounted. Opts: (null)
  console: The system is going down NOW!
  console: Sent SIGTERM to all processes
  console: Sent SIGKILL to all processes
  console: Requesting system reboot
  console: reboot: Restarting system
  JOB TIME   : 68.64 s

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-16-nieklinnenbank@gmail.com
[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
[NL: extend test with ethernet device checks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tests/acceptance/boot_linux_console.py | 47 ++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

This test boots Ubuntu Bionic on a OrangePi PC board.

As it requires 1GB of storage, and is slow, this test is disabled
on automatic CI testing.

It is useful for workstation testing. Currently Avocado timeouts too
quickly, so we can't run userland commands.

The kernel image and DeviceTree blob are built by the Armbian
project (based on Debian):
https://www.armbian.com/orange-pi-pc/

The Ubuntu image is downloaded from:
https://dl.armbian.com/orangepipc/Bionic_current

This test can be run using:

$ AVOCADO_ALLOW_LARGE_STORAGE=yes \
    avocado --show=app,console run -t machine:orangepi-pc \
      tests/acceptance/boot_linux_console.py
  console: U-Boot SPL 2019.04-armbian (Nov 18 2019 - 23:08:35 +0100)
  console: DRAM: 1024 MiB
  console: Failed to set core voltage! Can't set CPU frequency
  console: Trying to boot from MMC1
  console: U-Boot 2019.04-armbian (Nov 18 2019 - 23:08:35 +0100) Allwinner Technology
  console: CPU:   Allwinner H3 (SUN8I 0000)
  console: Model: Xunlong Orange Pi PC
  console: DRAM:  1 GiB
  console: MMC:   mmc@1c0f000: 0
  [...]
  console: Uncompressing Linux... done, booting the kernel.
  console: Booting Linux on physical CPU 0x0
  console: Linux version 5.3.9-sunxi (root@builder) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #19.11.3 SMP Mon Nov 18 18:49:43 CET 2019
  console: CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=50c5387d
  console: CPU: div instructions available: patching division code
  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
  console: OF: fdt: Machine model: Xunlong Orange Pi PC
  [...]
  console: EXT4-fs (mmcblk0p1): mounted filesystem with writeback data mode. Opts: (null)
  console: done.
  console: Begin: Running /scripts/local-bottom ... done.
  console: Begin: Running /scripts/init-bottom ... done.
  console: systemd[1]: systemd 237 running in system mode. (...)
  console: systemd[1]: Detected architecture arm.
  console: Welcome to Ubuntu 18.04.3 LTS!
  console: systemd[1]: Set hostname to <orangepipc>.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-17-nieklinnenbank@gmail.com
[NL: rename in commit message Raspbian to Armbian, remove vm.set_machine()]
[NL: changed test to boot from SD card via BootROM, added check for 7z]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tests/acceptance/boot_linux_console.py | 48 ++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

This test boots U-Boot then NetBSD (stored on a SD card) on
a OrangePi PC board.

As it requires ~1.3GB of storage, it is disabled by default.

U-Boot is built by the Debian project [1], and the SD card image
is provided by the NetBSD organization [2].

Once the compressed SD card image is downloaded (304MB) and
extracted, this test is fast:

$ AVOCADO_ALLOW_LARGE_STORAGE=yes \
    avocado --show=app,console run -t machine:orangepi-pc \
      tests/acceptance/boot_linux_console.py
  console: U-Boot SPL 2020.01+dfsg-1 (Jan 08 2020 - 08:19:44 +0000)
  console: DRAM: 1024 MiB
  console: U-Boot 2020.01+dfsg-1 (Jan 08 2020 - 08:19:44 +0000) Allwinner Technology
  console: CPU:   Allwinner H3 (SUN8I 0000)
  console: scanning bus usb@1c1b000 for devices... 1 USB Device(s) found
  console: scanning bus usb@1c1d000 for devices... 1 USB Device(s) found
  console: scanning usb for storage devices... 0 Storage Device(s) found
  console: Hit any key to stop autoboot:  0
  console: => setenv bootargs root=ld0a
  console: => setenv kernel netbsd-GENERIC.ub
  console: => setenv fdtfile dtb/sun8i-h3-orangepi-pc.dtb
  console: => boot
  console: ## Booting kernel from Legacy Image at 42000000 ...
  console: Image Name:   NetBSD/earmv7hf 9.0_RC1
  console: Image Type:   ARM Linux Kernel Image (no loading done) (uncompressed)
  console: XIP Kernel Image (no loading done)
  console: Loading Device Tree to 49ff6000, end 49fffe01 ... OK
  console: Starting kernel ...
  console: [   1.0000000] NetBSD/evbarm (fdt) booting ...
  console: [   1.0000000] NetBSD 9.0 (GENERIC) #0: Fri Feb 14 00:06:28 UTC 2020
  console: [   1.0000000]         mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/evbarm/compile/GENERIC
  console: [   1.0000000] total memory = 1024 MB
  console: [   1.0000000] avail memory = 1003 MB
  console: [   1.0000000] armfdt0 (root)
  console: [   1.0000000] simplebus0 at armfdt0: Xunlong Orange Pi PC
  console: [   1.0000000] cpu0 at cpus0: Cortex-A7 r0p5 (Cortex V7A core)
  console: [   1.0000000] cpu0: DC enabled IC enabled WB enabled LABT branch prediction enabled
  console: [   1.0000000] cpu0: 32KB/64B 2-way L1 VIPT Instruction cache
  console: [   1.0000000] cpu0: 32KB/64B 2-way write-back-locking-C L1 PIPT Data cache
  console: [   1.0000000] cpu0: 2304KB/64B 16-way write-through L2 PIPT Unified cache
  console: [   1.0000000] vfp0 at cpu0: NEON MPE (VFP 3.0+), rounding, NaN propagation, denormals
  ...
  console: [   2.3812082] sdmmc0: SD card status: 4-bit, C0
  console: [   2.3812082] ld0 at sdmmc0: <0xaa:0x5859:QEMU!:0x01:0xdeadbeef:0x062>
  console: [   2.4012856] ld0: 1226 MB, 622 cyl, 64 head, 63 sec, 512 bytes/sect x 2511872 sectors
  console: [   2.5321222] ld0: 4-bit width, High-Speed/SDR25, 50.000 MHz
  console: [   3.1068718] WARNING: 4 errors while detecting hardware; check system log.
  console: [   3.1179868] boot device: ld0
  console: [   3.1470623] root on ld0a dumps on ld0b
  console: [   3.2464436] root file system type: ffs
  console: [   3.2897123] kern.module.path=/stand/evbarm/9.0/modules
  console: Mon Feb 17 20:33:35 UTC 2020
  console: Starting root file system check:
  PASS (35.96 s)
  RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
  JOB TIME   : 36.09 s

Note, this test only took ~65 seconds to run on Travis-CI, see: [3].

This test is based on a description from Niek Linnenbank from [4].

[1] https://wiki.debian.org/InstallingDebianOn/Allwinner#Creating_a_bootable_SD_Card_with_u-boot
[2] https://wiki.netbsd.org/ports/evbarm/allwinner/
[3] https://travis-ci.org/philmd/qemu/jobs/638823612#L3778
[4] https://www.mail-archive.com/qemu-devel@nongnu.org/msg669347.html

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-18-nieklinnenbank@gmail.com
[NL: changed test to use NetBSD 9.0 final release and -global allwinner-rtc.base-year]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tests/acceptance/boot_linux_console.py | 70 ++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
index XXXXXXX..XXXXXXX 100644
--- a/tests/acceptance/boot_linux_console.py
+++ b/tests/acceptance/boot_linux_console.py
@@ -XXX,XX +XXX,XX @@ import shutil
 from avocado import skipUnless
 from avocado_qemu import Test
 from avocado_qemu import exec_command_and_wait_for_pattern
+from avocado_qemu import interrupt_interactive_console_until_pattern
 from avocado_qemu import wait_for_console_pattern
 from avocado.utils import process
 from avocado.utils import archive
@@ -XXX,XX +XXX,XX @@ class BootLinuxConsole(Test):
                                       'to <orangepipc>')
         self.wait_for_console_pattern('Starting Load Kernel Modules...')
 
+    @skipUnless(os.getenv('AVOCADO_ALLOW_LARGE_STORAGE'), 'storage limited')
+    def test_arm_orangepi_uboot_netbsd9(self):
+        """
+        :avocado: tags=arch:arm
+        :avocado: tags=machine:orangepi-pc
+        """
+        # This test download a 304MB compressed image and expand it to 1.3GB...
+        deb_url = ('http://snapshot.debian.org/archive/debian/'
+                   '20200108T145233Z/pool/main/u/u-boot/'
+                   'u-boot-sunxi_2020.01%2Bdfsg-1_armhf.deb')
+        deb_hash = 'f67f404a80753ca3d1258f13e38f2b060e13db99'
+        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
+        # We use the common OrangePi PC 'plus' build of U-Boot for our secondary
+        # program loader (SPL). We will then set the path to the more specific
+        # OrangePi "PC" device tree blob with 'setenv fdtfile' in U-Boot prompt,
+        # before to boot NetBSD.
+        uboot_path = '/usr/lib/u-boot/orangepi_plus/u-boot-sunxi-with-spl.bin'
+        uboot_path = self.extract_from_deb(deb_path, uboot_path)
+        image_url = ('https://cdn.netbsd.org/pub/NetBSD/NetBSD-9.0/'
+                     'evbarm-earmv7hf/binary/gzimg/armv7.img.gz')
+        image_hash = '2babb29d36d8360adcb39c09e31060945259917a'
+        image_path_gz = self.fetch_asset(image_url, asset_hash=image_hash)
+        image_path = os.path.join(self.workdir, 'armv7.img')
+        image_drive_args = 'if=sd,format=raw,snapshot=on,file=' + image_path
+        archive.gzip_uncompress(image_path_gz, image_path)
+
+        # dd if=u-boot-sunxi-with-spl.bin of=armv7.img bs=1K seek=8 conv=notrunc
+        with open(uboot_path, 'rb') as f_in:
+            with open(image_path, 'r+b') as f_out:
+                f_out.seek(8 * 1024)
+                shutil.copyfileobj(f_in, f_out)
+
+                # Extend image, to avoid that NetBSD thinks the partition
+                # inside the image is larger than device size itself
+                f_out.seek(0, 2)
+                f_out.seek(64 * 1024 * 1024, 1)
+                f_out.write(bytearray([0x00]))
+
+        self.vm.set_console()
+        self.vm.add_args('-nic', 'user',
+                         '-drive', image_drive_args,
+                         '-global', 'allwinner-rtc.base-year=2000',
+                         '-no-reboot')
+        self.vm.launch()
+        wait_for_console_pattern(self, 'U-Boot 2020.01+dfsg-1')
+        interrupt_interactive_console_until_pattern(self,
+                                       'Hit any key to stop autoboot:',
+                                       'switch to partitions #0, OK')
+
+        exec_command_and_wait_for_pattern(self, '', '=>')
+        cmd = 'setenv bootargs root=ld0a'
+        exec_command_and_wait_for_pattern(self, cmd, '=>')
+        cmd = 'setenv kernel netbsd-GENERIC.ub'
+        exec_command_and_wait_for_pattern(self, cmd, '=>')
+        cmd = 'setenv fdtfile dtb/sun8i-h3-orangepi-pc.dtb'
+        exec_command_and_wait_for_pattern(self, cmd, '=>')
+        cmd = ("setenv bootcmd 'fatload mmc 0:1 ${kernel_addr_r} ${kernel}; "
+               "fatload mmc 0:1 ${fdt_addr_r} ${fdtfile}; "
+               "fdt addr ${fdt_addr_r}; "
+               "bootm ${kernel_addr_r} - ${fdt_addr_r}'")
+        exec_command_and_wait_for_pattern(self, cmd, '=>')
+
+        exec_command_and_wait_for_pattern(self, 'boot',
+                                          'Booting kernel from Legacy Image')
+        wait_for_console_pattern(self, 'Starting kernel ...')
+        wait_for_console_pattern(self, 'NetBSD 9.0 (GENERIC)')
+        # Wait for user-space
+        wait_for_console_pattern(self, 'Starting root file system check')
+
     def test_s390x_s390_ccw_virtio(self):
         """
         :avocado: tags=arch:s390x
-- 
2.20.1

From: Niek Linnenbank <nieklinnenbank@gmail.com>

The Xunlong Orange Pi PC machine is a functional ARM machine
based on the Allwinner H3 System-on-Chip. It supports mainline
Linux, U-Boot, NetBSD and is covered by acceptance tests.

This commit adds a documentation text file with a description
of the machine and instructions for the user.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-19-nieklinnenbank@gmail.com
[PMM: moved file into docs/system/arm to match the reorg
of the arm target part of the docs; tweaked heading to
match other boards]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 MAINTAINERS                  |   1 +
 docs/system/arm/orangepi.rst | 253 +++++++++++++++++++++++++++++++++++
 docs/system/target-arm.rst   |   2 +
 3 files changed, 256 insertions(+)
 create mode 100644 docs/system/arm/orangepi.rst

diff --git a/MAINTAINERS b/MAINTAINERS
index XXXXXXX..XXXXXXX 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -XXX,XX +XXX,XX @@ S: Maintained
 F: hw/*/allwinner-h3*
 F: include/hw/*/allwinner-h3*
 F: hw/arm/orangepi.c
+F: docs/system/orangepi.rst
 
 ARM PrimeCell and CMSDK devices
 M: Peter Maydell <peter.maydell@linaro.org>
diff --git a/docs/system/arm/orangepi.rst b/docs/system/arm/orangepi.rst
new file mode 100644
index XXXXXXX..XXXXXXX
--- /dev/null
+++ b/docs/system/arm/orangepi.rst
@@ -XXX,XX +XXX,XX @@
+Orange Pi PC (``orangepi-pc``)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The Xunlong Orange Pi PC is an Allwinner H3 System on Chip
+based embedded computer with mainline support in both U-Boot
+and Linux. The board comes with a Quad Core Cortex-A7 @ 1.3GHz,
+1GiB RAM, 100Mbit ethernet, USB, SD/MMC, USB, HDMI and
+various other I/O.
+
+Supported devices
+"""""""""""""""""
+
+The Orange Pi PC machine supports the following devices:
+
+ * SMP (Quad Core Cortex-A7)
+ * Generic Interrupt Controller configuration
+ * SRAM mappings
+ * SDRAM controller
+ * Real Time Clock
+ * Timer device (re-used from Allwinner A10)
+ * UART
+ * SD/MMC storage controller
+ * EMAC ethernet
+ * USB 2.0 interfaces
+ * Clock Control Unit
+ * System Control module
+ * Security Identifier device
+
+Limitations
+"""""""""""
+
+Currently, Orange Pi PC does *not* support the following features:
+
+- Graphical output via HDMI, GPU and/or the Display Engine
+- Audio output
+- Hardware Watchdog
+
+Also see the 'unimplemented' array in the Allwinner H3 SoC module
+for a complete list of unimplemented I/O devices: ``./hw/arm/allwinner-h3.c``
+
+Boot options
+""""""""""""
+
+The Orange Pi PC machine can start using the standard -kernel functionality
+for loading a Linux kernel or ELF executable. Additionally, the Orange Pi PC
+machine can also emulate the BootROM which is present on an actual Allwinner H3
+based SoC, which loads the bootloader from a SD card, specified via the -sd argument
+to qemu-system-arm.
+
+Machine-specific options
+""""""""""""""""""""""""
+
+The following machine-specific options are supported:
+
+- allwinner-rtc.base-year=YYYY
+
+  The Allwinner RTC device is automatically created by the Orange Pi PC machine
+  and uses a default base year value which can be overridden using the 'base-year' property.
+  The base year is the actual represented year when the RTC year value is zero.
+  This option can be used in case the target operating system driver uses a different
+  base year value. The minimum value for the base year is 1900.
+
+- allwinner-sid.identifier=abcd1122-a000-b000-c000-12345678ffff
+
+  The Security Identifier value can be read by the guest.
+  For example, U-Boot uses it to determine a unique MAC address.
+
+The above machine-specific options can be specified in qemu-system-arm
+via the '-global' argument, for example:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M orangepi-pc -sd mycard.img \
+       -global allwinner-rtc.base-year=2000
+
+Running mainline Linux
+""""""""""""""""""""""
+
+Mainline Linux kernels from 4.19 up to latest master are known to work.
+To build a Linux mainline kernel that can be booted by the Orange Pi PC machine,
+simply configure the kernel using the sunxi_defconfig configuration:
+
+.. code-block:: bash
+
+  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make mrproper
+  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make sunxi_defconfig
+
+To be able to use USB storage, you need to manually enable the corresponding
+configuration item. Start the kconfig configuration tool:
+
+.. code-block:: bash
+
+  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make menuconfig
+
+Navigate to the following item, enable it and save your configuration:
+
+  Device Drivers > USB support > USB Mass Storage support
+
+Build the Linux kernel with:
+
+.. code-block:: bash
+
+  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make
+
+To boot the newly build linux kernel in QEMU with the Orange Pi PC machine, use:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
+      -kernel /path/to/linux/arch/arm/boot/zImage \
+      -append 'console=ttyS0,115200' \
+      -dtb /path/to/linux/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb
+
+Orange Pi PC images
+"""""""""""""""""""
+
+Note that the mainline kernel does not have a root filesystem. You may provide it
+with an official Orange Pi PC image from the official website:
+
+  http://www.orangepi.org/downloadresources/
+
+Another possibility is to run an Armbian image for Orange Pi PC which
+can be downloaded from:
+
+   https://www.armbian.com/orange-pi-pc/
+
+Alternatively, you can also choose to build you own image with buildroot
+using the orangepi_pc_defconfig. Also see https://buildroot.org for more information.
+
+You can choose to attach the selected image either as an SD card or as USB mass storage.
+For example, to boot using the Orange Pi PC Debian image on SD card, simply add the -sd
+argument and provide the proper root= kernel parameter:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
+      -kernel /path/to/linux/arch/arm/boot/zImage \
+      -append 'console=ttyS0,115200 root=/dev/mmcblk0p2' \
+      -dtb /path/to/linux/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb \
+      -sd OrangePi_pc_debian_stretch_server_linux5.3.5_v1.0.img
+
+To attach the image as an USB mass storage device to the machine,
+simply append to the command:
+
+.. code-block:: bash
+
+  -drive if=none,id=stick,file=myimage.img \
+  -device usb-storage,bus=usb-bus.0,drive=stick
+
+Instead of providing a custom Linux kernel via the -kernel command you may also
+choose to let the Orange Pi PC machine load the bootloader from SD card, just like
+a real board would do using the BootROM. Simply pass the selected image via the -sd
+argument and remove the -kernel, -append, -dbt and -initrd arguments:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
+       -sd Armbian_19.11.3_Orangepipc_buster_current_5.3.9.img
+
+Note that both the official Orange Pi PC images and Armbian images start
+a lot of userland programs via systemd. Depending on the host hardware and OS,
+they may be slow to emulate, especially due to emulating the 4 cores.
+To help reduce the performance slow down due to emulating the 4 cores, you can
+give the following kernel parameters via U-Boot (or via -append):
+
+.. code-block:: bash
+
+  => setenv extraargs 'systemd.default_timeout_start_sec=9000 loglevel=7 nosmp console=ttyS0,115200'
+
+Running U-Boot
+""""""""""""""
+
+U-Boot mainline can be build and configured using the orangepi_pc_defconfig
+using similar commands as describe above for Linux. Note that it is recommended
+for development/testing to select the following configuration setting in U-Boot:
+
+  Device Tree Control > Provider for DTB for DT Control > Embedded DTB
+
+To start U-Boot using the Orange Pi PC machine, provide the
+u-boot binary to the -kernel argument:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
+      -kernel /path/to/uboot/u-boot -sd disk.img
+
+Use the following U-boot commands to load and boot a Linux kernel from SD card:
+
+.. code-block:: bash
+
+  => setenv bootargs console=ttyS0,115200
+  => ext2load mmc 0 0x42000000 zImage
+  => ext2load mmc 0 0x43000000 sun8i-h3-orangepi-pc.dtb
+  => bootz 0x42000000 - 0x43000000
+
+Running NetBSD
+""""""""""""""
+
+The NetBSD operating system also includes support for Allwinner H3 based boards,
+including the Orange Pi PC. NetBSD 9.0 is known to work best for the Orange Pi PC
+board and provides a fully working system with serial console, networking and storage.
+For the Orange Pi PC machine, get the 'evbarm-earmv7hf' based image from:
+
+  https://cdn.netbsd.org/pub/NetBSD/NetBSD-9.0/evbarm-earmv7hf/binary/gzimg/armv7.img.gz
+
+The image requires manually installing U-Boot in the image. Build U-Boot with
+the orangepi_pc_defconfig configuration as described in the previous section.
+Next, unzip the NetBSD image and write the U-Boot binary including SPL using:
+
+.. code-block:: bash
+
+  $ gunzip armv7.img.gz
+  $ dd if=/path/to/u-boot-sunxi-with-spl.bin of=armv7.img bs=1024 seek=8 conv=notrunc
+
+Finally, before starting the machine the SD image must be extended such
+that the NetBSD kernel will not conclude the NetBSD partition is larger than
+the emulated SD card:
+
+.. code-block:: bash
+
+  $ dd if=/dev/zero bs=1M count=64 >> armv7.img
+
+Start the machine using the following command:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M orangepi-pc -nic user -nographic \
+        -sd armv7.img -global allwinner-rtc.base-year=2000
+
+At the U-Boot stage, interrupt the automatic boot process by pressing a key
+and set the following environment variables before booting:
+
+.. code-block:: bash
+
+  => setenv bootargs root=ld0a
+  => setenv kernel netbsd-GENERIC.ub
+  => setenv fdtfile dtb/sun8i-h3-orangepi-pc.dtb
+  => setenv bootcmd 'fatload mmc 0:1 ${kernel_addr_r} ${kernel}; fatload mmc 0:1 ${fdt_addr_r} ${fdtfile}; fdt addr ${fdt_addr_r}; bootm ${kernel_addr_r} - ${fdt_addr_r}'
+
+Optionally you may save the environment variables to SD card with 'saveenv'.
+To continue booting simply give the 'boot' command and NetBSD boots.
+
+Orange Pi PC acceptance tests
+"""""""""""""""""""""""""""""
+
+The Orange Pi PC machine has several acceptance tests included.
+To run the whole set of tests, build QEMU from source and simply
+provide the following command:
+
+.. code-block:: bash
+
+  $ AVOCADO_ALLOW_LARGE_STORAGE=yes avocado --show=app,console run \
+     -t machine:orangepi-pc tests/acceptance/boot_linux_console.py
diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst
index XXXXXXX..XXXXXXX 100644
--- a/docs/system/target-arm.rst
+++ b/docs/system/target-arm.rst
@@ -XXX,XX +XXX,XX @@ undocumented; you can get a complete list by running
 ``qemu-system-aarch64 --machine help``.
 
 .. toctree::
+   :maxdepth: 1
 
    arm/integratorcp
    arm/versatile
@@ -XXX,XX +XXX,XX @@ undocumented; you can get a complete list by running
    arm/stellaris
    arm/musicpal
    arm/sx1
+   arm/orangepi
 
 Arm CPU features
 ================
-- 
2.20.1

From: Eric Auger <eric.auger@redhat.com>

Mention 'max' value in the gic-version property description.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200311131618.7187-2-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/virt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void virt_instance_init(Object *obj)
                         virt_set_gic_version, NULL);
     object_property_set_description(obj, "gic-version",
                                     "Set GIC version. "
-                                    "Valid values are 2, 3 and host", NULL);
+                                    "Valid values are 2, 3, host and max",
+                                    NULL);
 
     vms->highmem_ecam = !vmc->no_highmem_ecam;
 
-- 
2.20.1

From: Eric Auger <eric.auger@redhat.com>

We plan to introduce yet another value for the gic version (nosel).
As we already use exotic values such as 0 and -1, let's introduce
a dedicated enum type and let vms->gic_version take this
type.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200311131618.7187-3-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/virt.h | 11 +++++++++--
 hw/arm/virt.c         | 30 +++++++++++++++---------------
 2 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -XXX,XX +XXX,XX @@ typedef enum VirtIOMMUType {
     VIRT_IOMMU_VIRTIO,
 } VirtIOMMUType;
 
+typedef enum VirtGICType {
+    VIRT_GIC_VERSION_MAX,
+    VIRT_GIC_VERSION_HOST,
+    VIRT_GIC_VERSION_2,
+    VIRT_GIC_VERSION_3,
+} VirtGICType;
+
 typedef struct MemMapEntry {
     hwaddr base;
     hwaddr size;
@@ -XXX,XX +XXX,XX @@ typedef struct {
     bool highmem_ecam;
     bool its;
     bool virt;
-    int32_t gic_version;
+    VirtGICType gic_version;
     VirtIOMMUType iommu;
     uint16_t virtio_iommu_bdf;
     struct arm_boot_info bootinfo;
@@ -XXX,XX +XXX,XX @@ static inline int virt_gicv3_redist_region_count(VirtMachineState *vms)
     uint32_t redist0_capacity =
                 vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE;
 
-    assert(vms->gic_version == 3);
+    assert(vms->gic_version == VIRT_GIC_VERSION_3);
 
     return vms->smp_cpus > redist0_capacity ? 2 : 1;
 }
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void fdt_add_timer_nodes(const VirtMachineState *vms)
         irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI;
     }
 
-    if (vms->gic_version == 2) {
+    if (vms->gic_version == VIRT_GIC_VERSION_2) {
         irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START,
                              GIC_FDT_IRQ_PPI_CPU_WIDTH,
                              (1 << vms->smp_cpus) - 1);
@@ -XXX,XX +XXX,XX @@ static void fdt_add_gic_node(VirtMachineState *vms)
     qemu_fdt_setprop_cell(vms->fdt, nodename, "#address-cells", 0x2);
     qemu_fdt_setprop_cell(vms->fdt, nodename, "#size-cells", 0x2);
     qemu_fdt_setprop(vms->fdt, nodename, "ranges", NULL, 0);
-    if (vms->gic_version == 3) {
+    if (vms->gic_version == VIRT_GIC_VERSION_3) {
         int nb_redist_regions = virt_gicv3_redist_region_count(vms);
 
         qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
@@ -XXX,XX +XXX,XX @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms)
         }
     }
 
-    if (vms->gic_version == 2) {
+    if (vms->gic_version == VIRT_GIC_VERSION_2) {
         irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START,
                              GIC_FDT_IRQ_PPI_CPU_WIDTH,
                              (1 << vms->smp_cpus) - 1);
@@ -XXX,XX +XXX,XX @@ static uint64_t virt_cpu_mp_affinity(VirtMachineState *vms, int idx)
          * purposes are to make TCG consistent (with 64-bit KVM hosts)
          * and to improve SGI efficiency.
          */
-        if (vms->gic_version == 3) {
+        if (vms->gic_version == VIRT_GIC_VERSION_3) {
             clustersz = GICV3_TARGETLIST_BITS;
         } else {
             clustersz = GIC_TARGETLIST_BITS;
@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
     /* We can probe only here because during property set
      * KVM is not available yet
      */
-    if (vms->gic_version <= 0) {
-        /* "host" or "max" */
+    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
+        vms->gic_version == VIRT_GIC_VERSION_MAX) {
         if (!kvm_enabled()) {
-            if (vms->gic_version == 0) {
+            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
                 error_report("gic-version=host requires KVM");
                 exit(1);
             } else {
                 /* "max": currently means 3 for TCG */
-                vms->gic_version = 3;
+                vms->gic_version = VIRT_GIC_VERSION_3;
             }
         } else {
             vms->gic_version = kvm_arm_vgic_probe();
@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
     /* The maximum number of CPUs depends on the GIC version, or on how
      * many redistributors we can fit into the memory map.
      */
-    if (vms->gic_version == 3) {
+    if (vms->gic_version == VIRT_GIC_VERSION_3) {
         virt_max_cpus =
             vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE;
         virt_max_cpus +=
@@ -XXX,XX +XXX,XX @@ static void virt_set_its(Object *obj, bool value, Error **errp)
 static char *virt_get_gic_version(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
-    const char *val = vms->gic_version == 3 ? "3" : "2";
+    const char *val = vms->gic_version == VIRT_GIC_VERSION_3 ? "3" : "2";
 
     return g_strdup(val);
 }
@@ -XXX,XX +XXX,XX @@ static void virt_set_gic_version(Object *obj, const char *value, Error **errp)
     VirtMachineState *vms = VIRT_MACHINE(obj);
 
     if (!strcmp(value, "3")) {
-        vms->gic_version = 3;
+        vms->gic_version = VIRT_GIC_VERSION_3;
     } else if (!strcmp(value, "2")) {
-        vms->gic_version = 2;
+        vms->gic_version = VIRT_GIC_VERSION_2;
     } else if (!strcmp(value, "host")) {
-        vms->gic_version = 0; /* Will probe later */
+        vms->gic_version = VIRT_GIC_VERSION_HOST; /* Will probe later */
     } else if (!strcmp(value, "max")) {
-        vms->gic_version = -1; /* Will probe later */
+        vms->gic_version = VIRT_GIC_VERSION_MAX; /* Will probe later */
     } else {
         error_setg(errp, "Invalid gic-version value");
         error_append_hint(errp, "Valid values are 3, 2, host, max.\n");
@@ -XXX,XX +XXX,XX @@ static void virt_instance_init(Object *obj)
                                     "physical address space above 32 bits",
                                     NULL);
     /* Default GIC type is v2 */
-    vms->gic_version = 2;
+    vms->gic_version = VIRT_GIC_VERSION_2;
     object_property_add_str(obj, "gic-version", virt_get_gic_version,
                         virt_set_gic_version, NULL);
     object_property_set_description(obj, "gic-version",
-- 
2.20.1

From: Eric Auger <eric.auger@redhat.com>

Let's move the code which freezes which gic-version to
be applied in a dedicated function. We also now set by
default the VIRT_GIC_VERSION_NO_SET. This eventually
turns into the legacy v2 choice in the finalize() function.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200311131618.7187-4-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/virt.h |  1 +
 hw/arm/virt.c         | 54 ++++++++++++++++++++++++++-----------------
 2 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index XXXXXXX..XXXXXXX 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -XXX,XX +XXX,XX @@ typedef enum VirtGICType {
     VIRT_GIC_VERSION_HOST,
     VIRT_GIC_VERSION_2,
     VIRT_GIC_VERSION_3,
+    VIRT_GIC_VERSION_NOSEL,
 } VirtGICType;
 
 typedef struct MemMapEntry {
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms)
     }
 }
 
+/*
+ * finalize_gic_version - Determines the final gic_version
+ * according to the gic-version property
+ *
+ * Default GIC type is v2
+ */
+static void finalize_gic_version(VirtMachineState *vms)
+{
+    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
+        vms->gic_version == VIRT_GIC_VERSION_MAX) {
+        if (!kvm_enabled()) {
+            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
+                error_report("gic-version=host requires KVM");
+                exit(1);
+            } else {
+                /* "max": currently means 3 for TCG */
+                vms->gic_version = VIRT_GIC_VERSION_3;
+            }
+        } else {
+            vms->gic_version = kvm_arm_vgic_probe();
+            if (!vms->gic_version) {
+                error_report(
+                    "Unable to determine GIC version supported by host");
+                exit(1);
+            }
+        }
+    } else if (vms->gic_version == VIRT_GIC_VERSION_NOSEL) {
+        vms->gic_version = VIRT_GIC_VERSION_2;
+    }
+}
+
 static void machvirt_init(MachineState *machine)
 {
     VirtMachineState *vms = VIRT_MACHINE(machine);
@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
     /* We can probe only here because during property set
      * KVM is not available yet
      */
-    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
-        vms->gic_version == VIRT_GIC_VERSION_MAX) {
-        if (!kvm_enabled()) {
-            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
-                error_report("gic-version=host requires KVM");
-                exit(1);
-            } else {
-                /* "max": currently means 3 for TCG */
-                vms->gic_version = VIRT_GIC_VERSION_3;
-            }
-        } else {
-            vms->gic_version = kvm_arm_vgic_probe();
-            if (!vms->gic_version) {
-                error_report(
-                    "Unable to determine GIC version supported by host");
-                exit(1);
-            }
-        }
-    }
+    finalize_gic_version(vms);
 
     if (!cpu_type_valid(machine->cpu_type)) {
         error_report("mach-virt: CPU type %s not supported", machine->cpu_type);
@@ -XXX,XX +XXX,XX @@ static void virt_instance_init(Object *obj)
                                     "Set on/off to enable/disable using "
                                     "physical address space above 32 bits",
                                     NULL);
-    /* Default GIC type is v2 */
-    vms->gic_version = VIRT_GIC_VERSION_2;
+    vms->gic_version = VIRT_GIC_VERSION_NOSEL;
     object_property_add_str(obj, "gic-version", virt_get_gic_version,
                         virt_set_gic_version, NULL);
     object_property_set_description(obj, "gic-version",
-- 
2.20.1

From: Eric Auger <eric.auger@redhat.com>

Convert kvm_arm_vgic_probe() so that it returns a
bitmap of supported in-kernel emulation VGIC versions instead
of the max version: at the moment values can be v2 and v3.
This allows to expose the case where the host GICv3 also
supports GICv2 emulation. This will be useful to choose the
default version in KVM accelerated mode.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200311131618.7187-5-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/kvm_arm.h |  3 +++
 hw/arm/virt.c        | 11 +++++++++--
 target/arm/kvm.c     | 14 ++++++++------
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/kvm_arm.h
+++ b/target/arm/kvm_arm.h
@@ -XXX,XX +XXX,XX @@
 #include "exec/memory.h"
 #include "qemu/error-report.h"
 
+#define KVM_ARM_VGIC_V2   (1 << 0)
+#define KVM_ARM_VGIC_V3   (1 << 1)
+
 /**
  * kvm_arm_vcpu_init:
  * @cs: CPUState
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void finalize_gic_version(VirtMachineState *vms)
                 vms->gic_version = VIRT_GIC_VERSION_3;
             }
         } else {
-            vms->gic_version = kvm_arm_vgic_probe();
-            if (!vms->gic_version) {
+            int probe_bitmap = kvm_arm_vgic_probe();
+
+            if (!probe_bitmap) {
                 error_report(
                     "Unable to determine GIC version supported by host");
                 exit(1);
+            } else {
+                if (probe_bitmap & KVM_ARM_VGIC_V3) {
+                    vms->gic_version = VIRT_GIC_VERSION_3;
+                } else {
+                    vms->gic_version = VIRT_GIC_VERSION_2;
+                }
             }
         }
     } else if (vms->gic_version == VIRT_GIC_VERSION_NOSEL) {
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -XXX,XX +XXX,XX @@ int kvm_arch_irqchip_create(KVMState *s)
 
 int kvm_arm_vgic_probe(void)
 {
+    int val = 0;
+
     if (kvm_create_device(kvm_state,
                           KVM_DEV_TYPE_ARM_VGIC_V3, true) == 0) {
-        return 3;
-    } else if (kvm_create_device(kvm_state,
-                                 KVM_DEV_TYPE_ARM_VGIC_V2, true) == 0) {
-        return 2;
-    } else {
-        return 0;
+        val |= KVM_ARM_VGIC_V3;
     }
+    if (kvm_create_device(kvm_state,
+                          KVM_DEV_TYPE_ARM_VGIC_V2, true) == 0) {
+        val |= KVM_ARM_VGIC_V2;
+    }
+    return val;
 }
 
 int kvm_arm_set_irq(int cpu, int irqtype, int irq, int level)
-- 
2.20.1

From: Eric Auger <eric.auger@redhat.com>

Restructure the finalize_gic_version with switch cases and
clearly separate the following cases:

- KVM mode / in-kernel irqchip
- KVM mode / userspace irqchip
- TCG mode

In KVM mode / in-kernel irqchip , we explictly check whether
the chosen version is supported by the host. If the end-user
explicitly sets v2/v3 and this is not supported by the host,
then the user gets an explicit error message. Note that for
old kernels where the CREATE_DEVICE ioctl doesn't exist then
we will now fail if the user specifically asked for gicv2,
where previously we (probably) would have succeeded.

In KVM mode / userspace irqchip we immediatly output an error
in case the end-user explicitly selected v3. Also we warn the
end-user about the unexpected usage of gic-version=host in
that case as only userspace GICv2 is supported.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200311131618.7187-6-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/virt.c | 88 +++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 67 insertions(+), 21 deletions(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index XXXXXXX..XXXXXXX 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms)
  */
 static void finalize_gic_version(VirtMachineState *vms)
 {
-    if (vms->gic_version == VIRT_GIC_VERSION_HOST ||
-        vms->gic_version == VIRT_GIC_VERSION_MAX) {
-        if (!kvm_enabled()) {
-            if (vms->gic_version == VIRT_GIC_VERSION_HOST) {
-                error_report("gic-version=host requires KVM");
-                exit(1);
-            } else {
-                /* "max": currently means 3 for TCG */
-                vms->gic_version = VIRT_GIC_VERSION_3;
-            }
-        } else {
-            int probe_bitmap = kvm_arm_vgic_probe();
+    if (kvm_enabled()) {
+        int probe_bitmap;
 
-            if (!probe_bitmap) {
+        if (!kvm_irqchip_in_kernel()) {
+            switch (vms->gic_version) {
+            case VIRT_GIC_VERSION_HOST:
+                warn_report(
+                    "gic-version=host not relevant with kernel-irqchip=off "
+                     "as only userspace GICv2 is supported. Using v2 ...");
+                return;
+            case VIRT_GIC_VERSION_MAX:
+            case VIRT_GIC_VERSION_NOSEL:
+                vms->gic_version = VIRT_GIC_VERSION_2;
+                return;
+            case VIRT_GIC_VERSION_2:
+                return;
+            case VIRT_GIC_VERSION_3:
                 error_report(
-                    "Unable to determine GIC version supported by host");
+                    "gic-version=3 is not supported with kernel-irqchip=off");
                 exit(1);
-            } else {
-                if (probe_bitmap & KVM_ARM_VGIC_V3) {
-                    vms->gic_version = VIRT_GIC_VERSION_3;
-                } else {
-                    vms->gic_version = VIRT_GIC_VERSION_2;
-                }
             }
         }
-    } else if (vms->gic_version == VIRT_GIC_VERSION_NOSEL) {
+
+        probe_bitmap = kvm_arm_vgic_probe();
+        if (!probe_bitmap) {
+            error_report("Unable to determine GIC version supported by host");
+            exit(1);
+        }
+
+        switch (vms->gic_version) {
+        case VIRT_GIC_VERSION_HOST:
+        case VIRT_GIC_VERSION_MAX:
+            if (probe_bitmap & KVM_ARM_VGIC_V3) {
+                vms->gic_version = VIRT_GIC_VERSION_3;
+            } else {
+                vms->gic_version = VIRT_GIC_VERSION_2;
+            }
+            return;
+        case VIRT_GIC_VERSION_NOSEL:
+            vms->gic_version = VIRT_GIC_VERSION_2;
+            break;
+        case VIRT_GIC_VERSION_2:
+        case VIRT_GIC_VERSION_3:
+            break;
+        }
+
+        /* Check chosen version is effectively supported by the host */
+        if (vms->gic_version == VIRT_GIC_VERSION_2 &&
+            !(probe_bitmap & KVM_ARM_VGIC_V2)) {
+            error_report("host does not support in-kernel GICv2 emulation");
+            exit(1);
+        } else if (vms->gic_version == VIRT_GIC_VERSION_3 &&
+                   !(probe_bitmap & KVM_ARM_VGIC_V3)) {
+            error_report("host does not support in-kernel GICv3 emulation");
+            exit(1);
+        }
+        return;
+    }
+
+    /* TCG mode */
+    switch (vms->gic_version) {
+    case VIRT_GIC_VERSION_NOSEL:
         vms->gic_version = VIRT_GIC_VERSION_2;
+        break;
+    case VIRT_GIC_VERSION_MAX:
+        vms->gic_version = VIRT_GIC_VERSION_3;
+        break;
+    case VIRT_GIC_VERSION_HOST:
+        error_report("gic-version=host requires KVM");
+        exit(1);
+    case VIRT_GIC_VERSION_2:
+    case VIRT_GIC_VERSION_3:
+        break;
     }
 }
 
-- 
2.20.1

From: Eric Auger <eric.auger@redhat.com>

At the moment if the end-user does not specify the gic-version along
with KVM acceleration, v2 is set by default. However most of the
systems now have GICv3 and sometimes they do not support GICv2
compatibility.

This patch keeps the default v2 selection in all cases except
in the KVM accelerated mode when either
- the host does not support GICv2 in-kernel emulation or
- number of VCPUS exceeds 8.

Those cases did not work anyway so we do not break any compatibility.
Now we get v3 selected in such a case.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200311131618.7187-7-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/virt.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

From: Beata Michalska <beata.michalska@linaro.org>

KVM_SET_VCPU_EVENTS might actually lead to vcpu registers being modified.
As such this should be the last step of sync to avoid potential overwriting
of whatever changes KVM might have done.

Signed-off-by: Beata Michalska <beata.michalska@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200312003401.29017-2-beata.michalska@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/kvm32.c | 15 ++++++++++-----
 target/arm/kvm64.c | 15 ++++++++++-----
 2 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/target/arm/kvm32.c b/target/arm/kvm32.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/kvm32.c
+++ b/target/arm/kvm32.c
@@ -XXX,XX +XXX,XX @@ int kvm_arch_put_registers(CPUState *cs, int level)
         return ret;
     }
 
-    ret = kvm_put_vcpu_events(cpu);
-    if (ret) {
-        return ret;
-    }
-
     write_cpustate_to_list(cpu, true);
 
     if (!write_list_to_kvmstate(cpu, level)) {
         return EINVAL;
     }
 
+    /*
+     * Setting VCPU events should be triggered after syncing the registers
+     * to avoid overwriting potential changes made by KVM upon calling
+     * KVM_SET_VCPU_EVENTS ioctl
+     */
+    ret = kvm_put_vcpu_events(cpu);
+    if (ret) {
+        return ret;
+    }
+
     kvm_arm_sync_mpstate_to_kvm(cpu);
 
     return ret;
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index XXXXXXX..XXXXXXX 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -XXX,XX +XXX,XX @@ int kvm_arch_put_registers(CPUState *cs, int level)
         return ret;
     }
 
-    ret = kvm_put_vcpu_events(cpu);
-    if (ret) {
-        return ret;
-    }
-
     write_cpustate_to_list(cpu, true);
 
     if (!write_list_to_kvmstate(cpu, level)) {
         return -EINVAL;
     }
 
+   /*
+    * Setting VCPU events should be triggered after syncing the registers
+    * to avoid overwriting potential changes made by KVM upon calling
+    * KVM_SET_VCPU_EVENTS ioctl
+    */
+    ret = kvm_put_vcpu_events(cpu);
+    if (ret) {
+        return ret;
+    }
+
     kvm_arm_sync_mpstate_to_kvm(cpu);
 
     return ret;
-- 
2.20.1