target-arm queue. This has the "plumb txattrs through various bits of exec.c" patches, and a collection of bug fixes from various people. thanks -- PMM The following changes since commit a3ac12fba028df90f7b3dbec924995c126c41022: Merge remote-tracking branch 'remotes/ehabkost/tags/numa-next-pull-request' into staging (2018-05-31 11:12:36 +0100) are available in the Git repository at: git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20180531 for you to fetch changes up to 49d1dca0520ea71bc21867fab6647f474fcf857b: KVM: GIC: Fix memory leak due to calling kvm_init_irq_routing twice (2018-05-31 14:52:53 +0100) ---------------------------------------------------------------- target-arm queue: * target/arm: Honour FPCR.FZ in FRECPX * MAINTAINERS: Add entries for newer MPS2 boards and devices * hw/intc/arm_gicv3: Fix APxR<n> register dispatching * arm_gicv3_kvm: fix bug in writing zero bits back to the in-kernel GIC state * tcg: Fix helper function vs host abi for float16 * arm: fix qemu crash on startup with -bios option * arm: fix malloc type mismatch * xlnx-zdma: Correct mem leaks and memset to zero on desc unaligned errors * Correct CPACR reset value for v7 cores * memory.h: Improve IOMMU related documentation * exec: Plumb transaction attributes through various functions in preparation for allowing IOMMUs to see them * vmstate.h: Provide VMSTATE_BOOL_SUB_ARRAY * ARM: ACPI: Fix use-after-free due to memory realloc * KVM: GIC: Fix memory leak due to calling kvm_init_irq_routing twice ---------------------------------------------------------------- Francisco Iglesias (1): xlnx-zdma: Correct mem leaks and memset to zero on desc unaligned errors Igor Mammedov (1): arm: fix qemu crash on startup with -bios option Jan Kiszka (1): hw/intc/arm_gicv3: Fix APxR<n> register dispatching Paolo Bonzini (1): arm: fix malloc type mismatch Peter Maydell (17): target/arm: Honour FPCR.FZ in FRECPX MAINTAINERS: Add entries for newer MPS2 boards and devices Correct CPACR reset value for v7 cores memory.h: Improve IOMMU related documentation Make tb_invalidate_phys_addr() take a MemTxAttrs argument Make address_space_translate{, _cached}() take a MemTxAttrs argument Make address_space_map() take a MemTxAttrs argument Make address_space_access_valid() take a MemTxAttrs argument Make flatview_extend_translation() take a MemTxAttrs argument Make memory_region_access_valid() take a MemTxAttrs argument Make MemoryRegion valid.accepts callback take a MemTxAttrs argument Make flatview_access_valid() take a MemTxAttrs argument Make flatview_translate() take a MemTxAttrs argument Make address_space_get_iotlb_entry() take a MemTxAttrs argument Make flatview_do_translate() take a MemTxAttrs argument Make address_space_translate_iommu take a MemTxAttrs argument vmstate.h: Provide VMSTATE_BOOL_SUB_ARRAY Richard Henderson (1): tcg: Fix helper function vs host abi for float16 Shannon Zhao (3): arm_gicv3_kvm: increase clroffset accordingly ARM: ACPI: Fix use-after-free due to memory realloc KVM: GIC: Fix memory leak due to calling kvm_init_irq_routing twice include/exec/exec-all.h | 5 +- include/exec/helper-head.h | 2 +- include/exec/memory-internal.h | 3 +- include/exec/memory.h | 128 +++++++++++++++++++++++++++++++++++------ include/migration/vmstate.h | 3 + include/sysemu/dma.h | 6 +- accel/tcg/translate-all.c | 4 +- exec.c | 95 ++++++++++++++++++------------ hw/arm/boot.c | 18 +++--- hw/arm/virt-acpi-build.c | 20 +++++-- hw/dma/xlnx-zdma.c | 10 +++- hw/hppa/dino.c | 3 +- hw/intc/arm_gic_kvm.c | 1 - hw/intc/arm_gicv3_cpuif.c | 12 ++-- hw/intc/arm_gicv3_kvm.c | 2 +- hw/nvram/fw_cfg.c | 12 ++-- hw/s390x/s390-pci-inst.c | 3 +- hw/scsi/esp.c | 3 +- hw/vfio/common.c | 3 +- hw/virtio/vhost.c | 3 +- hw/xen/xen_pt_msi.c | 3 +- memory.c | 12 ++-- memory_ldst.inc.c | 18 +++--- target/arm/gdbstub.c | 3 +- target/arm/helper-a64.c | 41 +++++++------ target/arm/helper.c | 90 ++++++++++++++++------------- target/ppc/mmu-hash64.c | 3 +- target/riscv/helper.c | 2 +- target/s390x/diag.c | 6 +- target/s390x/excp_helper.c | 3 +- target/s390x/mmu_helper.c | 3 +- target/s390x/sigp.c | 3 +- target/xtensa/op_helper.c | 3 +- MAINTAINERS | 9 ++- 34 files changed, 353 insertions(+), 182 deletions(-) The FRECPX instructions should (like most other floating point operations) honour the FPCR.FZ bit which specifies whether input denormals should be flushed to zero (or FZ16 for the half-precision version). We forgot to implement this, which doesn't affect the results (since the calculation doesn't actually care about the mantissa bits) but did mean we were failing to set the FPSR.IDC bit. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521172712.19930-1-peter.maydell@linaro.org --- target/arm/helper-a64.c | 6 ++++++ 1 file changed, 6 insertions(+) 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 @@ float16 HELPER(frecpx_f16)(float16 a, void *fpstp) return nan; } + a = float16_squash_input_denormal(a, fpst); + val16 = float16_val(a); sbit = 0x8000 & val16; exp = extract32(val16, 10, 5); @@ -XXX,XX +XXX,XX @@ float32 HELPER(frecpx_f32)(float32 a, void *fpstp) return nan; } + a = float32_squash_input_denormal(a, fpst); + val32 = float32_val(a); sbit = 0x80000000ULL & val32; exp = extract32(val32, 23, 8); @@ -XXX,XX +XXX,XX @@ float64 HELPER(frecpx_f64)(float64 a, void *fpstp) return nan; } + a = float64_squash_input_denormal(a, fpst); + val64 = float64_val(a); sbit = 0x8000000000000000ULL & val64; exp = extract64(float64_val(a), 52, 11); -- 2.17.1 Add entries to MAINTAINERS to cover the newer MPS2 boards and the new devices they use. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20180518153157.14899-1-peter.maydell@linaro.org --- MAINTAINERS | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index XXXXXXX..XXXXXXX 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -XXX,XX +XXX,XX @@ F: hw/timer/cmsdk-apb-timer.c F: include/hw/timer/cmsdk-apb-timer.h F: hw/char/cmsdk-apb-uart.c F: include/hw/char/cmsdk-apb-uart.h +F: hw/misc/tz-ppc.c +F: include/hw/misc/tz-ppc.h ARM cores M: Peter Maydell <peter.maydell@linaro.org> @@ -XXX,XX +XXX,XX @@ M: Peter Maydell <peter.maydell@linaro.org> L: qemu-arm@nongnu.org S: Maintained F: hw/arm/mps2.c -F: hw/misc/mps2-scc.c -F: include/hw/misc/mps2-scc.h +F: hw/arm/mps2-tz.c +F: hw/misc/mps2-*.c +F: include/hw/misc/mps2-*.h +F: hw/arm/iotkit.c +F: include/hw/arm/iotkit.h Musicpal M: Jan Kiszka <jan.kiszka@web.de> -- 2.17.1 From: Jan Kiszka <jan.kiszka@siemens.com> There was a nasty flip in identifying which register group an access is targeting. The issue caused spuriously raised priorities of the guest when handing CPUs over in the Jailhouse hypervisor. Cc: qemu-stable@nongnu.org Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Message-id: 28b927d3-da58-bce4-cc13-bfec7f9b1cb9@siemens.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/intc/arm_gicv3_cpuif.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/arm_gicv3_cpuif.c +++ b/hw/intc/arm_gicv3_cpuif.c @@ -XXX,XX +XXX,XX @@ static uint64_t icv_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) { GICv3CPUState *cs = icc_cs_from_env(env); int regno = ri->opc2 & 3; - int grp = ri->crm & 1 ? GICV3_G0 : GICV3_G1NS; + int grp = (ri->crm & 1) ? GICV3_G1NS : GICV3_G0; uint64_t value = cs->ich_apr[grp][regno]; trace_gicv3_icv_ap_read(ri->crm & 1, regno, gicv3_redist_affid(cs), value); @@ -XXX,XX +XXX,XX @@ static void icv_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, { GICv3CPUState *cs = icc_cs_from_env(env); int regno = ri->opc2 & 3; - int grp = ri->crm & 1 ? GICV3_G0 : GICV3_G1NS; + int grp = (ri->crm & 1) ? GICV3_G1NS : GICV3_G0; trace_gicv3_icv_ap_write(ri->crm & 1, regno, gicv3_redist_affid(cs), value); @@ -XXX,XX +XXX,XX @@ static uint64_t icc_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) uint64_t value; int regno = ri->opc2 & 3; - int grp = ri->crm & 1 ? GICV3_G0 : GICV3_G1; + int grp = (ri->crm & 1) ? GICV3_G1 : GICV3_G0; if (icv_access(env, grp == GICV3_G0 ? HCR_FMO : HCR_IMO)) { return icv_ap_read(env, ri); @@ -XXX,XX +XXX,XX @@ static void icc_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, GICv3CPUState *cs = icc_cs_from_env(env); int regno = ri->opc2 & 3; - int grp = ri->crm & 1 ? GICV3_G0 : GICV3_G1; + int grp = (ri->crm & 1) ? GICV3_G1 : GICV3_G0; if (icv_access(env, grp == GICV3_G0 ? HCR_FMO : HCR_IMO)) { icv_ap_write(env, ri, value); @@ -XXX,XX +XXX,XX @@ static uint64_t ich_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) { GICv3CPUState *cs = icc_cs_from_env(env); int regno = ri->opc2 & 3; - int grp = ri->crm & 1 ? GICV3_G0 : GICV3_G1NS; + int grp = (ri->crm & 1) ? GICV3_G1NS : GICV3_G0; uint64_t value; value = cs->ich_apr[grp][regno]; @@ -XXX,XX +XXX,XX @@ static void ich_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, { GICv3CPUState *cs = icc_cs_from_env(env); int regno = ri->opc2 & 3; - int grp = ri->crm & 1 ? GICV3_G0 : GICV3_G1NS; + int grp = (ri->crm & 1) ? GICV3_G1NS : GICV3_G0; trace_gicv3_ich_ap_write(ri->crm & 1, regno, gicv3_redist_affid(cs), value); -- 2.17.1 From: Shannon Zhao <zhaoshenglong@huawei.com> It forgot to increase clroffset during the loop. So it only clear the first 4 bytes. Fixes: 367b9f527becdd20ddf116e17a3c0c2bbc486920 Cc: qemu-stable@nongnu.org Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 1527047633-12368-1-git-send-email-zhaoshenglong@huawei.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/intc/arm_gicv3_kvm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/arm_gicv3_kvm.c +++ b/hw/intc/arm_gicv3_kvm.c @@ -XXX,XX +XXX,XX @@ static void kvm_dist_putbmp(GICv3State *s, uint32_t offset, if (clroffset != 0) { reg = 0; kvm_gicd_access(s, clroffset, &reg, true); + clroffset += 4; } reg = *gic_bmp_ptr32(bmp, irq); kvm_gicd_access(s, offset, &reg, true); -- 2.17.1 From: Richard Henderson <richard.henderson@linaro.org> Depending on the host abi, float16, aka uint16_t, values are passed and returned either zero-extended in the host register or with garbage at the top of the host register. The tcg code generator has so far been assuming garbage, as that matches the x86 abi, but this is incorrect for other host abis. Further, target/arm has so far been assuming zero-extended results, so that it may store the 16-bit value into a 32-bit slot with the high 16-bits already clear. Rectify both problems by mapping "f16" in the helper definition to uint32_t instead of (a typedef for) uint16_t. This forces the host compiler to assume garbage in the upper 16 bits on input and to zero-extend the result on output. Cc: qemu-stable@nongnu.org Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 20180522175629.24932-1-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/exec/helper-head.h | 2 +- target/arm/helper-a64.c | 35 +++++++++-------- target/arm/helper.c | 80 +++++++++++++++++++------------------- 3 files changed, 59 insertions(+), 58 deletions(-) diff --git a/include/exec/helper-head.h b/include/exec/helper-head.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/helper-head.h +++ b/include/exec/helper-head.h @@ -XXX,XX +XXX,XX @@ #define dh_ctype_int int #define dh_ctype_i64 uint64_t #define dh_ctype_s64 int64_t -#define dh_ctype_f16 float16 +#define dh_ctype_f16 uint32_t #define dh_ctype_f32 float32 #define dh_ctype_f64 float64 #define dh_ctype_ptr void * 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) +uint64_t HELPER(vfp_cmph_a64)(uint32_t x, uint32_t 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) +uint64_t HELPER(vfp_cmpeh_a64)(uint32_t x, uint32_t y, void *fp_status) { return float_rel_to_flags(float16_compare(x, y, fp_status)); } @@ -XXX,XX +XXX,XX @@ uint64_t HELPER(neon_cgt_f64)(float64 a, float64 b, void *fpstp) #define float64_three make_float64(0x4008000000000000ULL) #define float64_one_point_five make_float64(0x3FF8000000000000ULL) -float16 HELPER(recpsf_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(recpsf_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; @@ -XXX,XX +XXX,XX @@ float64 HELPER(recpsf_f64)(float64 a, float64 b, void *fpstp) return float64_muladd(a, b, float64_two, 0, fpst); } -float16 HELPER(rsqrtsf_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(rsqrtsf_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; @@ -XXX,XX +XXX,XX @@ uint64_t HELPER(neon_addlp_u16)(uint64_t a) } /* Floating-point reciprocal exponent - see FPRecpX in ARM ARM */ -float16 HELPER(frecpx_f16)(float16 a, void *fpstp) +uint32_t HELPER(frecpx_f16)(uint32_t a, void *fpstp) { float_status *fpst = fpstp; uint16_t val16, sbit; @@ -XXX,XX +XXX,XX @@ void HELPER(casp_be_parallel)(CPUARMState *env, uint32_t rs, uint64_t addr, #define ADVSIMD_HELPER(name, suffix) HELPER(glue(glue(advsimd_, name), suffix)) #define ADVSIMD_HALFOP(name) \ -float16 ADVSIMD_HELPER(name, h)(float16 a, float16 b, void *fpstp) \ +uint32_t ADVSIMD_HELPER(name, h)(uint32_t a, uint32_t b, void *fpstp) \ { \ float_status *fpst = fpstp; \ return float16_ ## name(a, b, fpst); \ @@ -XXX,XX +XXX,XX @@ ADVSIMD_HALFOP(mulx) ADVSIMD_TWOHALFOP(mulx) /* fused multiply-accumulate */ -float16 HELPER(advsimd_muladdh)(float16 a, float16 b, float16 c, void *fpstp) +uint32_t HELPER(advsimd_muladdh)(uint32_t a, uint32_t b, uint32_t c, + void *fpstp) { float_status *fpst = fpstp; return float16_muladd(a, b, c, 0, fpst); @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(advsimd_muladd2h)(uint32_t two_a, uint32_t two_b, #define ADVSIMD_CMPRES(test) (test) ? 0xffff : 0 -uint32_t HELPER(advsimd_ceq_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(advsimd_ceq_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; int compare = float16_compare_quiet(a, b, fpst); return ADVSIMD_CMPRES(compare == float_relation_equal); } -uint32_t HELPER(advsimd_cge_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(advsimd_cge_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; int compare = float16_compare(a, b, fpst); @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(advsimd_cge_f16)(float16 a, float16 b, void *fpstp) compare == float_relation_equal); } -uint32_t HELPER(advsimd_cgt_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(advsimd_cgt_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; int compare = float16_compare(a, b, fpst); return ADVSIMD_CMPRES(compare == float_relation_greater); } -uint32_t HELPER(advsimd_acge_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(advsimd_acge_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; float16 f0 = float16_abs(a); @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(advsimd_acge_f16)(float16 a, float16 b, void *fpstp) compare == float_relation_equal); } -uint32_t HELPER(advsimd_acgt_f16)(float16 a, float16 b, void *fpstp) +uint32_t HELPER(advsimd_acgt_f16)(uint32_t a, uint32_t b, void *fpstp) { float_status *fpst = fpstp; float16 f0 = float16_abs(a); @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(advsimd_acgt_f16)(float16 a, float16 b, void *fpstp) } /* round to integral */ -float16 HELPER(advsimd_rinth_exact)(float16 x, void *fp_status) +uint32_t HELPER(advsimd_rinth_exact)(uint32_t x, void *fp_status) { return float16_round_to_int(x, fp_status); } -float16 HELPER(advsimd_rinth)(float16 x, void *fp_status) +uint32_t HELPER(advsimd_rinth)(uint32_t x, void *fp_status) { int old_flags = get_float_exception_flags(fp_status), new_flags; float16 ret; @@ -XXX,XX +XXX,XX @@ float16 HELPER(advsimd_rinth)(float16 x, void *fp_status) * setting the mode appropriately before calling the helper. */ -uint32_t HELPER(advsimd_f16tosinth)(float16 a, void *fpstp) +uint32_t HELPER(advsimd_f16tosinth)(uint32_t a, void *fpstp) { float_status *fpst = fpstp; @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(advsimd_f16tosinth)(float16 a, void *fpstp) return float16_to_int16(a, fpst); } -uint32_t HELPER(advsimd_f16touinth)(float16 a, void *fpstp) +uint32_t HELPER(advsimd_f16touinth)(uint32_t a, void *fpstp) { float_status *fpst = fpstp; @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(advsimd_f16touinth)(float16 a, void *fpstp) * Square Root and Reciprocal square root */ -float16 HELPER(sqrt_f16)(float16 a, void *fpstp) +uint32_t HELPER(sqrt_f16)(uint32_t a, void *fpstp) { float_status *s = fpstp; 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 @@ DO_VFP_cmp(d, float64) /* Integer to float and float to integer conversions */ -#define CONV_ITOF(name, fsz, sign) \ - float##fsz HELPER(name)(uint32_t x, void *fpstp) \ -{ \ - float_status *fpst = fpstp; \ - return sign##int32_to_##float##fsz((sign##int32_t)x, fpst); \ +#define CONV_ITOF(name, ftype, fsz, sign) \ +ftype HELPER(name)(uint32_t x, void *fpstp) \ +{ \ + float_status *fpst = fpstp; \ + return sign##int32_to_##float##fsz((sign##int32_t)x, fpst); \ } -#define CONV_FTOI(name, fsz, sign, round) \ -uint32_t HELPER(name)(float##fsz x, void *fpstp) \ -{ \ - float_status *fpst = fpstp; \ - if (float##fsz##_is_any_nan(x)) { \ - float_raise(float_flag_invalid, fpst); \ - return 0; \ - } \ - return float##fsz##_to_##sign##int32##round(x, fpst); \ +#define CONV_FTOI(name, ftype, fsz, sign, round) \ +uint32_t HELPER(name)(ftype x, void *fpstp) \ +{ \ + float_status *fpst = fpstp; \ + if (float##fsz##_is_any_nan(x)) { \ + float_raise(float_flag_invalid, fpst); \ + return 0; \ + } \ + return float##fsz##_to_##sign##int32##round(x, fpst); \ } -#define FLOAT_CONVS(name, p, fsz, sign) \ -CONV_ITOF(vfp_##name##to##p, fsz, sign) \ -CONV_FTOI(vfp_to##name##p, fsz, sign, ) \ -CONV_FTOI(vfp_to##name##z##p, fsz, sign, _round_to_zero) +#define FLOAT_CONVS(name, p, ftype, fsz, sign) \ + CONV_ITOF(vfp_##name##to##p, ftype, fsz, sign) \ + CONV_FTOI(vfp_to##name##p, ftype, fsz, sign, ) \ + CONV_FTOI(vfp_to##name##z##p, ftype, fsz, sign, _round_to_zero) -FLOAT_CONVS(si, h, 16, ) -FLOAT_CONVS(si, s, 32, ) -FLOAT_CONVS(si, d, 64, ) -FLOAT_CONVS(ui, h, 16, u) -FLOAT_CONVS(ui, s, 32, u) -FLOAT_CONVS(ui, d, 64, u) +FLOAT_CONVS(si, h, uint32_t, 16, ) +FLOAT_CONVS(si, s, float32, 32, ) +FLOAT_CONVS(si, d, float64, 64, ) +FLOAT_CONVS(ui, h, uint32_t, 16, u) +FLOAT_CONVS(ui, s, float32, 32, u) +FLOAT_CONVS(ui, d, float64, 64, u) #undef CONV_ITOF #undef CONV_FTOI @@ -XXX,XX +XXX,XX @@ static float16 do_postscale_fp16(float64 f, int shift, float_status *fpst) return float64_to_float16(float64_scalbn(f, -shift, fpst), true, fpst); } -float16 HELPER(vfp_sltoh)(uint32_t x, uint32_t shift, void *fpst) +uint32_t HELPER(vfp_sltoh)(uint32_t x, uint32_t shift, void *fpst) { return do_postscale_fp16(int32_to_float64(x, fpst), shift, fpst); } -float16 HELPER(vfp_ultoh)(uint32_t x, uint32_t shift, void *fpst) +uint32_t 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) +uint32_t 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) +uint32_t HELPER(vfp_uqtoh)(uint64_t x, uint32_t shift, void *fpst) { return do_postscale_fp16(uint64_to_float64(x, fpst), shift, fpst); } @@ -XXX,XX +XXX,XX @@ static float64 do_prescale_fp16(float16 f, int shift, float_status *fpst) } } -uint32_t HELPER(vfp_toshh)(float16 x, uint32_t shift, void *fpst) +uint32_t HELPER(vfp_toshh)(uint32_t x, uint32_t shift, void *fpst) { return float64_to_int16(do_prescale_fp16(x, shift, fpst), fpst); } -uint32_t HELPER(vfp_touhh)(float16 x, uint32_t shift, void *fpst) +uint32_t HELPER(vfp_touhh)(uint32_t 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) +uint32_t HELPER(vfp_toslh)(uint32_t 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) +uint32_t HELPER(vfp_toulh)(uint32_t 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) +uint64_t HELPER(vfp_tosqh)(uint32_t 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) +uint64_t HELPER(vfp_touqh)(uint32_t x, uint32_t shift, void *fpst) { return float64_to_uint64(do_prescale_fp16(x, shift, fpst), fpst); } @@ -XXX,XX +XXX,XX @@ uint32_t HELPER(set_neon_rmode)(uint32_t rmode, CPUARMState *env) } /* Half precision conversions. */ -float32 HELPER(vfp_fcvt_f16_to_f32)(float16 a, void *fpstp, uint32_t ahp_mode) +float32 HELPER(vfp_fcvt_f16_to_f32)(uint32_t a, void *fpstp, uint32_t ahp_mode) { /* Squash FZ16 to 0 for the duration of conversion. In this case, * it would affect flushing input denormals. @@ -XXX,XX +XXX,XX @@ float32 HELPER(vfp_fcvt_f16_to_f32)(float16 a, void *fpstp, uint32_t ahp_mode) return r; } -float16 HELPER(vfp_fcvt_f32_to_f16)(float32 a, void *fpstp, uint32_t ahp_mode) +uint32_t HELPER(vfp_fcvt_f32_to_f16)(float32 a, void *fpstp, uint32_t ahp_mode) { /* Squash FZ16 to 0 for the duration of conversion. In this case, * it would affect flushing output denormals. @@ -XXX,XX +XXX,XX @@ float16 HELPER(vfp_fcvt_f32_to_f16)(float32 a, void *fpstp, uint32_t ahp_mode) return r; } -float64 HELPER(vfp_fcvt_f16_to_f64)(float16 a, void *fpstp, uint32_t ahp_mode) +float64 HELPER(vfp_fcvt_f16_to_f64)(uint32_t a, void *fpstp, uint32_t ahp_mode) { /* Squash FZ16 to 0 for the duration of conversion. In this case, * it would affect flushing input denormals. @@ -XXX,XX +XXX,XX @@ float64 HELPER(vfp_fcvt_f16_to_f64)(float16 a, void *fpstp, uint32_t ahp_mode) return r; } -float16 HELPER(vfp_fcvt_f64_to_f16)(float64 a, void *fpstp, uint32_t ahp_mode) +uint32_t HELPER(vfp_fcvt_f64_to_f16)(float64 a, void *fpstp, uint32_t ahp_mode) { /* Squash FZ16 to 0 for the duration of conversion. In this case, * it would affect flushing output denormals. @@ -XXX,XX +XXX,XX @@ static bool round_to_inf(float_status *fpst, bool sign_bit) g_assert_not_reached(); } -float16 HELPER(recpe_f16)(float16 input, void *fpstp) +uint32_t HELPER(recpe_f16)(uint32_t input, void *fpstp) { float_status *fpst = fpstp; float16 f16 = float16_squash_input_denormal(input, fpst); @@ -XXX,XX +XXX,XX @@ static uint64_t recip_sqrt_estimate(int *exp , int exp_off, uint64_t frac) return extract64(estimate, 0, 8) << 44; } -float16 HELPER(rsqrte_f16)(float16 input, void *fpstp) +uint32_t HELPER(rsqrte_f16)(uint32_t input, void *fpstp) { float_status *s = fpstp; float16 f16 = float16_squash_input_denormal(input, s); -- 2.17.1 From: Igor Mammedov <imammedo@redhat.com> When QEMU is started with following CLI -machine virt,gic-version=3,accel=kvm -cpu host -bios AAVMF_CODE.fd it crashes with abort at accel/kvm/kvm-all.c:2164: KVM_SET_DEVICE_ATTR failed: Group 6 attr 0x000000000000c665: Invalid argument Which is caused by implicit dependency of kvm_arm_gicv3_reset() on arm_gicv3_icc_reset() where the later is called by CPU reset reset callback. However commit: 3b77f6c arm/boot: split load_dtb() from arm_load_kernel() broke CPU reset callback registration in case arm_load_kernel() ... if (!info->kernel_filename || info->firmware_loaded) branch is taken, i.e. it's sufficient to provide a firmware or do not provide kernel on CLI to skip cpu reset callback registration, where before offending commit the callback has been registered unconditionally. Fix it by registering the callback right at the beginning of arm_load_kernel() unconditionally instead of doing it at the end. NOTE: we probably should eliminate that dependency anyways as well as separate arch CPU reset parts from arm_load_kernel() into CPU itself, but that refactoring that I probably would have to do anyways later for CPU hotplug to work. Reported-by: Auger Eric <eric.auger@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Message-id: 1527070950-208350-1-git-send-email-imammedo@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/boot.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/hw/arm/boot.c b/hw/arm/boot.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/boot.c +++ b/hw/arm/boot.c @@ -XXX,XX +XXX,XX @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info) static const ARMInsnFixup *primary_loader; AddressSpace *as = arm_boot_address_space(cpu, info); + /* CPU objects (unlike devices) are not automatically reset on system + * reset, so we must always register a handler to do so. If we're + * actually loading a kernel, the handler is also responsible for + * arranging that we start it correctly. + */ + for (cs = first_cpu; cs; cs = CPU_NEXT(cs)) { + qemu_register_reset(do_cpu_reset, ARM_CPU(cs)); + } + /* The board code is not supposed to set secure_board_setup unless * running its code in secure mode is actually possible, and KVM * doesn't support secure. @@ -XXX,XX +XXX,XX @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info) ARM_CPU(cs)->env.boot_info = info; } - /* CPU objects (unlike devices) are not automatically reset on system - * reset, so we must always register a handler to do so. If we're - * actually loading a kernel, the handler is also responsible for - * arranging that we start it correctly. - */ - for (cs = first_cpu; cs; cs = CPU_NEXT(cs)) { - qemu_register_reset(do_cpu_reset, ARM_CPU(cs)); - } - if (!info->skip_dtb_autoload && have_dtb(info)) { if (arm_load_dtb(info->dtb_start, info, info->dtb_limit, as) < 0) { exit(1); -- 2.17.1 From: Paolo Bonzini <pbonzini@redhat.com> cpregs_keys is an uint32_t* so the allocation should use uint32_t. g_new is even better because it is type-safe. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/gdbstub.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/target/arm/gdbstub.c b/target/arm/gdbstub.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/gdbstub.c +++ b/target/arm/gdbstub.c @@ -XXX,XX +XXX,XX @@ int arm_gen_dynamic_xml(CPUState *cs) RegisterSysregXmlParam param = {cs, s}; cpu->dyn_xml.num_cpregs = 0; - cpu->dyn_xml.cpregs_keys = g_malloc(sizeof(uint32_t *) * - g_hash_table_size(cpu->cp_regs)); + cpu->dyn_xml.cpregs_keys = g_new(uint32_t, g_hash_table_size(cpu->cp_regs)); g_string_printf(s, "<?xml version=\"1.0\"?>"); g_string_append_printf(s, "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">"); g_string_append_printf(s, "<feature name=\"org.qemu.gdb.arm.sys.regs\">"); -- 2.17.1 From: Francisco Iglesias <frasse.iglesias@gmail.com> Coverity found that the string return by 'object_get_canonical_path' was not being freed at two locations in the model (CID 1391294 and CID 1391293) and also that a memset was being called with a value greater than the max of a byte on the second argument (CID 1391286). This patch corrects this by adding the freeing of the strings and also changing to memset to zero instead on descriptor unaligned errors. Signed-off-by: Francisco Iglesias <frasse.iglesias@gmail.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180528184859.3530-1-frasse.iglesias@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/dma/xlnx-zdma.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/hw/dma/xlnx-zdma.c b/hw/dma/xlnx-zdma.c index XXXXXXX..XXXXXXX 100644 --- a/hw/dma/xlnx-zdma.c +++ b/hw/dma/xlnx-zdma.c @@ -XXX,XX +XXX,XX @@ static bool zdma_load_descriptor(XlnxZDMA *s, uint64_t addr, void *buf) qemu_log_mask(LOG_GUEST_ERROR, "zdma: unaligned descriptor at %" PRIx64, addr); - memset(buf, 0xdeadbeef, sizeof(XlnxZDMADescr)); + memset(buf, 0x0, sizeof(XlnxZDMADescr)); s->error = true; return false; } @@ -XXX,XX +XXX,XX @@ static uint64_t zdma_read(void *opaque, hwaddr addr, unsigned size) RegisterInfo *r = &s->regs_info[addr / 4]; if (!r->data) { + gchar *path = object_get_canonical_path(OBJECT(s)); qemu_log("%s: Decode error: read from %" HWADDR_PRIx "\n", - object_get_canonical_path(OBJECT(s)), + path, addr); + g_free(path); ARRAY_FIELD_DP32(s->regs, ZDMA_CH_ISR, INV_APB, true); zdma_ch_imr_update_irq(s); return 0; @@ -XXX,XX +XXX,XX @@ static void zdma_write(void *opaque, hwaddr addr, uint64_t value, RegisterInfo *r = &s->regs_info[addr / 4]; if (!r->data) { + gchar *path = object_get_canonical_path(OBJECT(s)); qemu_log("%s: Decode error: write to %" HWADDR_PRIx "=%" PRIx64 "\n", - object_get_canonical_path(OBJECT(s)), + path, addr, value); + g_free(path); ARRAY_FIELD_DP32(s->regs, ZDMA_CH_ISR, INV_APB, true); zdma_ch_imr_update_irq(s); return; -- 2.17.1 In commit f0aff255700 we made cpacr_write() enforce that some CPACR bits are RAZ/WI and some are RAO/WI for ARMv7 cores. Unfortunately we forgot to also update the register's reset value. The effect was that (a) a guest that read CPACR on reset would not see ones in the RAO bits, and (b) if you did a migration before the guest did a write to the CPACR then the migration would fail because the destination would enforce the RAO bits and then complain that they didn't match the zero value from the source. Implement reset for the CPACR using a custom reset function that just calls cpacr_write(), to avoid having to duplicate the logic for which bits are RAO. This bug would affect migration for TCG CPUs which are ARMv7 with VFP but without one of Neon or VFPv3. Reported-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Cédric Le Goater <clg@kaod.org> Message-id: 20180522173713.26282-1-peter.maydell@linaro.org --- target/arm/helper.c | 10 +++++++++- 1 file changed, 9 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 @@ static void cpacr_write(CPUARMState *env, const ARMCPRegInfo *ri, env->cp15.cpacr_el1 = value; } +static void cpacr_reset(CPUARMState *env, const ARMCPRegInfo *ri) +{ + /* Call cpacr_write() so that we reset with the correct RAO bits set + * for our CPU features. + */ + cpacr_write(env, ri, 0); +} + static CPAccessResult cpacr_access(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v6_cp_reginfo[] = { { .name = "CPACR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 2, .accessfn = cpacr_access, .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.cpacr_el1), - .resetvalue = 0, .writefn = cpacr_write }, + .resetfn = cpacr_reset, .writefn = cpacr_write }, REGINFO_SENTINEL }; -- 2.17.1 Add more detail to the documentation for memory_region_init_iommu() and other IOMMU-related functions and data structures. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 20180521140402.23318-2-peter.maydell@linaro.org --- include/exec/memory.h | 105 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 95 insertions(+), 10 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ enum IOMMUMemoryRegionAttr { IOMMU_ATTR_SPAPR_TCE_FD }; +/** + * IOMMUMemoryRegionClass: + * + * All IOMMU implementations need to subclass TYPE_IOMMU_MEMORY_REGION + * and provide an implementation of at least the @translate method here + * to handle requests to the memory region. Other methods are optional. + * + * The IOMMU implementation must use the IOMMU notifier infrastructure + * to report whenever mappings are changed, by calling + * memory_region_notify_iommu() (or, if necessary, by calling + * memory_region_notify_one() for each registered notifier). + */ typedef struct IOMMUMemoryRegionClass { /* private */ struct DeviceClass parent_class; /* - * Return a TLB entry that contains a given address. Flag should - * be the access permission of this translation operation. We can - * set flag to IOMMU_NONE to mean that we don't need any - * read/write permission checks, like, when for region replay. + * Return a TLB entry that contains a given address. + * + * The IOMMUAccessFlags indicated via @flag are optional and may + * be specified as IOMMU_NONE to indicate that the caller needs + * the full translation information for both reads and writes. If + * the access flags are specified then the IOMMU implementation + * may use this as an optimization, to stop doing a page table + * walk as soon as it knows that the requested permissions are not + * allowed. If IOMMU_NONE is passed then the IOMMU must do the + * full page table walk and report the permissions in the returned + * IOMMUTLBEntry. (Note that this implies that an IOMMU may not + * return different mappings for reads and writes.) + * + * The returned information remains valid while the caller is + * holding the big QEMU lock or is inside an RCU critical section; + * if the caller wishes to cache the mapping beyond that it must + * register an IOMMU notifier so it can invalidate its cached + * information when the IOMMU mapping changes. + * + * @iommu: the IOMMUMemoryRegion + * @hwaddr: address to be translated within the memory region + * @flag: requested access permissions */ IOMMUTLBEntry (*translate)(IOMMUMemoryRegion *iommu, hwaddr addr, IOMMUAccessFlags flag); - /* Returns minimum supported page size */ + /* Returns minimum supported page size in bytes. + * If this method is not provided then the minimum is assumed to + * be TARGET_PAGE_SIZE. + * + * @iommu: the IOMMUMemoryRegion + */ uint64_t (*get_min_page_size)(IOMMUMemoryRegion *iommu); - /* Called when IOMMU Notifier flag changed */ + /* Called when IOMMU Notifier flag changes (ie when the set of + * events which IOMMU users are requesting notification for changes). + * Optional method -- need not be provided if the IOMMU does not + * need to know exactly which events must be notified. + * + * @iommu: the IOMMUMemoryRegion + * @old_flags: events which previously needed to be notified + * @new_flags: events which now need to be notified + */ void (*notify_flag_changed)(IOMMUMemoryRegion *iommu, IOMMUNotifierFlag old_flags, IOMMUNotifierFlag new_flags); - /* Set this up to provide customized IOMMU replay function */ + /* Called to handle memory_region_iommu_replay(). + * + * The default implementation of memory_region_iommu_replay() is to + * call the IOMMU translate method for every page in the address space + * with flag == IOMMU_NONE and then call the notifier if translate + * returns a valid mapping. If this method is implemented then it + * overrides the default behaviour, and must provide the full semantics + * of memory_region_iommu_replay(), by calling @notifier for every + * translation present in the IOMMU. + * + * Optional method -- an IOMMU only needs to provide this method + * if the default is inefficient or produces undesirable side effects. + * + * Note: this is not related to record-and-replay functionality. + */ void (*replay)(IOMMUMemoryRegion *iommu, IOMMUNotifier *notifier); - /* Get IOMMU misc attributes */ - int (*get_attr)(IOMMUMemoryRegion *iommu, enum IOMMUMemoryRegionAttr, + /* Get IOMMU misc attributes. This is an optional method that + * can be used to allow users of the IOMMU to get implementation-specific + * information. The IOMMU implements this method to handle calls + * by IOMMU users to memory_region_iommu_get_attr() by filling in + * the arbitrary data pointer for any IOMMUMemoryRegionAttr values that + * the IOMMU supports. If the method is unimplemented then + * memory_region_iommu_get_attr() will always return -EINVAL. + * + * @iommu: the IOMMUMemoryRegion + * @attr: attribute being queried + * @data: memory to fill in with the attribute data + * + * Returns 0 on success, or a negative errno; in particular + * returns -EINVAL for unrecognized or unimplemented attribute types. + */ + int (*get_attr)(IOMMUMemoryRegion *iommu, enum IOMMUMemoryRegionAttr attr, void *data); } IOMMUMemoryRegionClass; @@ -XXX,XX +XXX,XX @@ static inline void memory_region_init_reservation(MemoryRegion *mr, * An IOMMU region translates addresses and forwards accesses to a target * memory region. * + * The IOMMU implementation must define a subclass of TYPE_IOMMU_MEMORY_REGION. + * @_iommu_mr should be a pointer to enough memory for an instance of + * that subclass, @instance_size is the size of that subclass, and + * @mrtypename is its name. This function will initialize @_iommu_mr as an + * instance of the subclass, and its methods will then be called to handle + * accesses to the memory region. See the documentation of + * #IOMMUMemoryRegionClass for further details. + * * @_iommu_mr: the #IOMMUMemoryRegion to be initialized * @instance_size: the IOMMUMemoryRegion subclass instance size * @mrtypename: the type name of the #IOMMUMemoryRegion @@ -XXX,XX +XXX,XX @@ void memory_region_register_iommu_notifier(MemoryRegion *mr, * a notifier with the minimum page granularity returned by * mr->iommu_ops->get_page_size(). * + * Note: this is not related to record-and-replay functionality. + * * @iommu_mr: the memory region to observe * @n: the notifier to which to replay iommu mappings */ @@ -XXX,XX +XXX,XX @@ void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n); * memory_region_iommu_replay_all: replay existing IOMMU translations * to all the notifiers registered. * + * Note: this is not related to record-and-replay functionality. + * * @iommu_mr: the memory region to observe */ void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr); @@ -XXX,XX +XXX,XX @@ void memory_region_unregister_iommu_notifier(MemoryRegion *mr, * memory_region_iommu_get_attr: return an IOMMU attr if get_attr() is * defined on the IOMMU. * - * Returns 0 if succeded, error code otherwise. + * Returns 0 on success, or a negative errno otherwise. In particular, + * -EINVAL indicates that the IOMMU does not support the requested + * attribute. * * @iommu_mr: the memory region * @attr: the requested attribute -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to tb_invalidate_phys_addr(). Its callers either have an attrs value to hand, or don't care and can use MEMTXATTRS_UNSPECIFIED. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180521140402.23318-3-peter.maydell@linaro.org --- include/exec/exec-all.h | 5 +++-- accel/tcg/translate-all.c | 2 +- exec.c | 2 +- target/xtensa/op_helper.c | 3 ++- 4 files changed, 7 insertions(+), 5 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, void tlb_set_page(CPUState *cpu, target_ulong vaddr, hwaddr paddr, int prot, int mmu_idx, target_ulong size); -void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr); +void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, MemTxAttrs attrs); void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx, uintptr_t retaddr); #else @@ -XXX,XX +XXX,XX @@ static inline void tlb_flush_by_mmuidx_all_cpus_synced(CPUState *cpu, uint16_t idxmap) { } -static inline void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr) +static inline void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, + MemTxAttrs attrs) { } #endif diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static TranslationBlock *tb_find_pc(uintptr_t tc_ptr) } #if !defined(CONFIG_USER_ONLY) -void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr) +void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, MemTxAttrs attrs) { ram_addr_t ram_addr; MemoryRegion *mr; diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static void breakpoint_invalidate(CPUState *cpu, target_ulong pc) if (phys != -1) { /* Locks grabbed by tb_invalidate_phys_addr */ tb_invalidate_phys_addr(cpu->cpu_ases[asidx].as, - phys | (pc & ~TARGET_PAGE_MASK)); + phys | (pc & ~TARGET_PAGE_MASK), attrs); } } #endif diff --git a/target/xtensa/op_helper.c b/target/xtensa/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/xtensa/op_helper.c +++ b/target/xtensa/op_helper.c @@ -XXX,XX +XXX,XX @@ static void tb_invalidate_virtual_addr(CPUXtensaState *env, uint32_t vaddr) int ret = xtensa_get_physical_addr(env, false, vaddr, 2, 0, &paddr, &page_size, &access); if (ret == 0) { - tb_invalidate_phys_addr(&address_space_memory, paddr); + tb_invalidate_phys_addr(&address_space_memory, paddr, + MEMTXATTRS_UNSPECIFIED); } } -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to address_space_translate() and address_space_translate_cached(). Callers either have an attrs value to hand, or don't care and can use MEMTXATTRS_UNSPECIFIED. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-4-peter.maydell@linaro.org --- include/exec/memory.h | 4 +++- accel/tcg/translate-all.c | 2 +- exec.c | 14 +++++++++----- hw/vfio/common.c | 3 ++- memory_ldst.inc.c | 18 +++++++++--------- target/riscv/helper.c | 2 +- 6 files changed, 25 insertions(+), 18 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr, * #MemoryRegion. * @len: pointer to length * @is_write: indicates the transfer direction + * @attrs: memory attributes */ MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat, @@ -XXX,XX +XXX,XX @@ MemoryRegion *flatview_translate(FlatView *fv, static inline MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr, hwaddr *xlat, - hwaddr *len, bool is_write) + hwaddr *len, bool is_write, + MemTxAttrs attrs) { return flatview_translate(address_space_to_flatview(as), addr, xlat, len, is_write); diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, MemTxAttrs attrs) hwaddr l = 1; rcu_read_lock(); - mr = address_space_translate(as, addr, &addr, &l, false); + mr = address_space_translate(as, addr, &addr, &l, false, attrs); if (!(memory_region_is_ram(mr) || memory_region_is_romd(mr))) { rcu_read_unlock(); diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static inline void cpu_physical_memory_write_rom_internal(AddressSpace *as, rcu_read_lock(); while (len > 0) { l = len; - mr = address_space_translate(as, addr, &addr1, &l, true); + mr = address_space_translate(as, addr, &addr1, &l, true, + MEMTXATTRS_UNSPECIFIED); if (!(memory_region_is_ram(mr) || memory_region_is_romd(mr))) { @@ -XXX,XX +XXX,XX @@ void address_space_cache_destroy(MemoryRegionCache *cache) */ static inline MemoryRegion *address_space_translate_cached( MemoryRegionCache *cache, hwaddr addr, hwaddr *xlat, - hwaddr *plen, bool is_write) + hwaddr *plen, bool is_write, MemTxAttrs attrs) { MemoryRegionSection section; MemoryRegion *mr; @@ -XXX,XX +XXX,XX @@ address_space_read_cached_slow(MemoryRegionCache *cache, hwaddr addr, MemoryRegion *mr; l = len; - mr = address_space_translate_cached(cache, addr, &addr1, &l, false); + mr = address_space_translate_cached(cache, addr, &addr1, &l, false, + MEMTXATTRS_UNSPECIFIED); flatview_read_continue(cache->fv, addr, MEMTXATTRS_UNSPECIFIED, buf, len, addr1, l, mr); @@ -XXX,XX +XXX,XX @@ address_space_write_cached_slow(MemoryRegionCache *cache, hwaddr addr, MemoryRegion *mr; l = len; - mr = address_space_translate_cached(cache, addr, &addr1, &l, true); + mr = address_space_translate_cached(cache, addr, &addr1, &l, true, + MEMTXATTRS_UNSPECIFIED); flatview_write_continue(cache->fv, addr, MEMTXATTRS_UNSPECIFIED, buf, len, addr1, l, mr); @@ -XXX,XX +XXX,XX @@ bool cpu_physical_memory_is_io(hwaddr phys_addr) rcu_read_lock(); mr = address_space_translate(&address_space_memory, - phys_addr, &phys_addr, &l, false); + phys_addr, &phys_addr, &l, false, + MEMTXATTRS_UNSPECIFIED); res = !(memory_region_is_ram(mr) || memory_region_is_romd(mr)); rcu_read_unlock(); diff --git a/hw/vfio/common.c b/hw/vfio/common.c index XXXXXXX..XXXXXXX 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -XXX,XX +XXX,XX @@ static bool vfio_get_vaddr(IOMMUTLBEntry *iotlb, void **vaddr, */ mr = address_space_translate(&address_space_memory, iotlb->translated_addr, - &xlat, &len, writable); + &xlat, &len, writable, + MEMTXATTRS_UNSPECIFIED); if (!memory_region_is_ram(mr)) { error_report("iommu map to non memory area %"HWADDR_PRIx"", xlat); diff --git a/memory_ldst.inc.c b/memory_ldst.inc.c index XXXXXXX..XXXXXXX 100644 --- a/memory_ldst.inc.c +++ b/memory_ldst.inc.c @@ -XXX,XX +XXX,XX @@ static inline uint32_t glue(address_space_ldl_internal, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, false); + mr = TRANSLATE(addr, &addr1, &l, false, attrs); if (l < 4 || !IS_DIRECT(mr, false)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ static inline uint64_t glue(address_space_ldq_internal, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, false); + mr = TRANSLATE(addr, &addr1, &l, false, attrs); if (l < 8 || !IS_DIRECT(mr, false)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ uint32_t glue(address_space_ldub, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, false); + mr = TRANSLATE(addr, &addr1, &l, false, attrs); if (!IS_DIRECT(mr, false)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ static inline uint32_t glue(address_space_lduw_internal, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, false); + mr = TRANSLATE(addr, &addr1, &l, false, attrs); if (l < 2 || !IS_DIRECT(mr, false)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ void glue(address_space_stl_notdirty, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, true); + mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 4 || !IS_DIRECT(mr, true)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ static inline void glue(address_space_stl_internal, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, true); + mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 4 || !IS_DIRECT(mr, true)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ void glue(address_space_stb, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, true); + mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (!IS_DIRECT(mr, true)) { release_lock |= prepare_mmio_access(mr); r = memory_region_dispatch_write(mr, addr1, val, 1, attrs); @@ -XXX,XX +XXX,XX @@ static inline void glue(address_space_stw_internal, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, true); + mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 2 || !IS_DIRECT(mr, true)) { release_lock |= prepare_mmio_access(mr); @@ -XXX,XX +XXX,XX @@ static void glue(address_space_stq_internal, SUFFIX)(ARG1_DECL, bool release_lock = false; RCU_READ_LOCK(); - mr = TRANSLATE(addr, &addr1, &l, true); + mr = TRANSLATE(addr, &addr1, &l, true, attrs); if (l < 8 || !IS_DIRECT(mr, true)) { release_lock |= prepare_mmio_access(mr); diff --git a/target/riscv/helper.c b/target/riscv/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.c +++ b/target/riscv/helper.c @@ -XXX,XX +XXX,XX @@ restart: MemoryRegion *mr; hwaddr l = sizeof(target_ulong), addr1; mr = address_space_translate(cs->as, pte_addr, - &addr1, &l, false); + &addr1, &l, false, MEMTXATTRS_UNSPECIFIED); if (memory_access_is_direct(mr, true)) { target_ulong *pte_pa = qemu_map_ram_ptr(mr->ram_block, addr1); -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to address_space_map(). Its callers either have an attrs value to hand, or don't care and can use MEMTXATTRS_UNSPECIFIED. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-5-peter.maydell@linaro.org --- include/exec/memory.h | 3 ++- include/sysemu/dma.h | 3 ++- exec.c | 6 ++++-- target/ppc/mmu-hash64.c | 3 ++- 4 files changed, 10 insertions(+), 5 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr, int len, bool is_ * @addr: address within that address space * @plen: pointer to length of buffer; updated on return * @is_write: indicates the transfer direction + * @attrs: memory attributes */ void *address_space_map(AddressSpace *as, hwaddr addr, - hwaddr *plen, bool is_write); + hwaddr *plen, bool is_write, MemTxAttrs attrs); /* address_space_unmap: Unmaps a memory region previously mapped by address_space_map() * diff --git a/include/sysemu/dma.h b/include/sysemu/dma.h index XXXXXXX..XXXXXXX 100644 --- a/include/sysemu/dma.h +++ b/include/sysemu/dma.h @@ -XXX,XX +XXX,XX @@ static inline void *dma_memory_map(AddressSpace *as, hwaddr xlen = *len; void *p; - p = address_space_map(as, addr, &xlen, dir == DMA_DIRECTION_FROM_DEVICE); + p = address_space_map(as, addr, &xlen, dir == DMA_DIRECTION_FROM_DEVICE, + MEMTXATTRS_UNSPECIFIED); *len = xlen; return p; } diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ flatview_extend_translation(FlatView *fv, hwaddr addr, void *address_space_map(AddressSpace *as, hwaddr addr, hwaddr *plen, - bool is_write) + bool is_write, + MemTxAttrs attrs) { hwaddr len = *plen; hwaddr l, xlat; @@ -XXX,XX +XXX,XX @@ void *cpu_physical_memory_map(hwaddr addr, hwaddr *plen, int is_write) { - return address_space_map(&address_space_memory, addr, plen, is_write); + return address_space_map(&address_space_memory, addr, plen, is_write, + MEMTXATTRS_UNSPECIFIED); } void cpu_physical_memory_unmap(void *buffer, hwaddr len, diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c index XXXXXXX..XXXXXXX 100644 --- a/target/ppc/mmu-hash64.c +++ b/target/ppc/mmu-hash64.c @@ -XXX,XX +XXX,XX @@ const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu, return NULL; } - hptes = address_space_map(CPU(cpu)->as, base + pte_offset, &plen, false); + hptes = address_space_map(CPU(cpu)->as, base + pte_offset, &plen, false, + MEMTXATTRS_UNSPECIFIED); if (plen < (n * HASH_PTE_SIZE_64)) { hw_error("%s: Unable to map all requested HPTEs\n", __func__); } -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to address_space_access_valid(). Its callers either have an attrs value to hand, or don't care and can use MEMTXATTRS_UNSPECIFIED. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-6-peter.maydell@linaro.org --- include/exec/memory.h | 4 +++- include/sysemu/dma.h | 3 ++- exec.c | 3 ++- target/s390x/diag.c | 6 ++++-- target/s390x/excp_helper.c | 3 ++- target/s390x/mmu_helper.c | 3 ++- target/s390x/sigp.c | 3 ++- 7 files changed, 17 insertions(+), 8 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ static inline MemoryRegion *address_space_translate(AddressSpace *as, * @addr: address within that address space * @len: length of the area to be checked * @is_write: indicates the transfer direction + * @attrs: memory attributes */ -bool address_space_access_valid(AddressSpace *as, hwaddr addr, int len, bool is_write); +bool address_space_access_valid(AddressSpace *as, hwaddr addr, int len, + bool is_write, MemTxAttrs attrs); /* address_space_map: map a physical memory region into a host virtual address * diff --git a/include/sysemu/dma.h b/include/sysemu/dma.h index XXXXXXX..XXXXXXX 100644 --- a/include/sysemu/dma.h +++ b/include/sysemu/dma.h @@ -XXX,XX +XXX,XX @@ static inline bool dma_memory_valid(AddressSpace *as, DMADirection dir) { return address_space_access_valid(as, addr, len, - dir == DMA_DIRECTION_FROM_DEVICE); + dir == DMA_DIRECTION_FROM_DEVICE, + MEMTXATTRS_UNSPECIFIED); } static inline int dma_memory_rw_relaxed(AddressSpace *as, dma_addr_t addr, diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len, } bool address_space_access_valid(AddressSpace *as, hwaddr addr, - int len, bool is_write) + int len, bool is_write, + MemTxAttrs attrs) { FlatView *fv; bool result; diff --git a/target/s390x/diag.c b/target/s390x/diag.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/diag.c +++ b/target/s390x/diag.c @@ -XXX,XX +XXX,XX @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, uintptr_t ra) return; } if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), false)) { + sizeof(IplParameterBlock), false, + MEMTXATTRS_UNSPECIFIED)) { s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra); return; } @@ -XXX,XX +XXX,XX @@ out: return; } if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), true)) { + sizeof(IplParameterBlock), true, + MEMTXATTRS_UNSPECIFIED)) { s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra); return; } diff --git a/target/s390x/excp_helper.c b/target/s390x/excp_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/excp_helper.c +++ b/target/s390x/excp_helper.c @@ -XXX,XX +XXX,XX @@ int s390_cpu_handle_mmu_fault(CPUState *cs, vaddr orig_vaddr, int size, /* check out of RAM access */ if (!address_space_access_valid(&address_space_memory, raddr, - TARGET_PAGE_SIZE, rw)) { + TARGET_PAGE_SIZE, rw, + MEMTXATTRS_UNSPECIFIED)) { DPRINTF("%s: raddr %" PRIx64 " > ram_size %" PRIx64 "\n", __func__, (uint64_t)raddr, (uint64_t)ram_size); trigger_pgm_exception(env, PGM_ADDRESSING, ILEN_AUTO); diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -XXX,XX +XXX,XX @@ static int translate_pages(S390CPU *cpu, vaddr addr, int nr_pages, return ret; } if (!address_space_access_valid(&address_space_memory, pages[i], - TARGET_PAGE_SIZE, is_write)) { + TARGET_PAGE_SIZE, is_write, + MEMTXATTRS_UNSPECIFIED)) { trigger_access_exception(env, PGM_ADDRESSING, ILEN_AUTO, 0); return -EFAULT; } diff --git a/target/s390x/sigp.c b/target/s390x/sigp.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/sigp.c +++ b/target/s390x/sigp.c @@ -XXX,XX +XXX,XX @@ static void sigp_set_prefix(CPUState *cs, run_on_cpu_data arg) cpu_synchronize_state(cs); if (!address_space_access_valid(&address_space_memory, addr, - sizeof(struct LowCore), false)) { + sizeof(struct LowCore), false, + MEMTXATTRS_UNSPECIFIED)) { set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); return; } -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to flatview_extend_translation(). Its callers either have an attrs value to hand, or don't care and can use MEMTXATTRS_UNSPECIFIED. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-7-peter.maydell@linaro.org --- exec.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr, static hwaddr flatview_extend_translation(FlatView *fv, hwaddr addr, - hwaddr target_len, - MemoryRegion *mr, hwaddr base, hwaddr len, - bool is_write) + hwaddr target_len, + MemoryRegion *mr, hwaddr base, hwaddr len, + bool is_write, MemTxAttrs attrs) { hwaddr done = 0; hwaddr xlat; @@ -XXX,XX +XXX,XX @@ void *address_space_map(AddressSpace *as, memory_region_ref(mr); *plen = flatview_extend_translation(fv, addr, len, mr, xlat, - l, is_write); + l, is_write, attrs); ptr = qemu_ram_ptr_length(mr->ram_block, xlat, plen, true); rcu_read_unlock(); @@ -XXX,XX +XXX,XX @@ int64_t address_space_cache_init(MemoryRegionCache *cache, mr = cache->mrs.mr; memory_region_ref(mr); if (memory_access_is_direct(mr, is_write)) { + /* We don't care about the memory attributes here as we're only + * doing this if we found actual RAM, which behaves the same + * regardless of attributes; so UNSPECIFIED is fine. + */ l = flatview_extend_translation(cache->fv, addr, len, mr, - cache->xlat, l, is_write); + cache->xlat, l, is_write, + MEMTXATTRS_UNSPECIFIED); cache->ptr = qemu_ram_ptr_length(mr->ram_block, cache->xlat, &l, true); } else { cache->ptr = NULL; -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to memory_region_access_valid(). Its callers either have an attrs value to hand, or don't care and can use MEMTXATTRS_UNSPECIFIED. The callsite in flatview_access_valid() is part of a recursive loop flatview_access_valid() -> memory_region_access_valid() -> subpage_accepts() -> flatview_access_valid(); we make it pass MEMTXATTRS_UNSPECIFIED for now, until the next several commits have plumbed an attrs parameter through the rest of the loop and we can add an attrs parameter to flatview_access_valid(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-8-peter.maydell@linaro.org --- include/exec/memory-internal.h | 3 ++- exec.c | 4 +++- hw/s390x/s390-pci-inst.c | 3 ++- memory.c | 7 ++++--- 4 files changed, 11 insertions(+), 6 deletions(-) diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory-internal.h +++ b/include/exec/memory-internal.h @@ -XXX,XX +XXX,XX @@ void flatview_unref(FlatView *view); extern const MemoryRegionOps unassigned_mem_ops; bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr, - unsigned size, bool is_write); + unsigned size, bool is_write, + MemTxAttrs attrs); void flatview_add_to_dispatch(FlatView *fv, MemoryRegionSection *section); AddressSpaceDispatch *address_space_dispatch_new(FlatView *fv); diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len, mr = flatview_translate(fv, addr, &xlat, &l, is_write); if (!memory_access_is_direct(mr, is_write)) { l = memory_access_size(mr, l, addr); - if (!memory_region_access_valid(mr, xlat, l, is_write)) { + /* When our callers all have attrs we'll pass them through here */ + if (!memory_region_access_valid(mr, xlat, l, is_write, + MEMTXATTRS_UNSPECIFIED)) { return false; } } diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index XXXXXXX..XXXXXXX 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -XXX,XX +XXX,XX @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr, mr = s390_get_subregion(mr, offset, len); offset -= mr->addr; - if (!memory_region_access_valid(mr, offset, len, true)) { + if (!memory_region_access_valid(mr, offset, len, true, + MEMTXATTRS_UNSPECIFIED)) { s390_program_interrupt(env, PGM_OPERAND, 6, ra); return 0; } diff --git a/memory.c b/memory.c index XXXXXXX..XXXXXXX 100644 --- a/memory.c +++ b/memory.c @@ -XXX,XX +XXX,XX @@ static const MemoryRegionOps ram_device_mem_ops = { bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr, unsigned size, - bool is_write) + bool is_write, + MemTxAttrs attrs) { int access_size_min, access_size_max; int access_size, i; @@ -XXX,XX +XXX,XX @@ MemTxResult memory_region_dispatch_read(MemoryRegion *mr, { MemTxResult r; - if (!memory_region_access_valid(mr, addr, size, false)) { + if (!memory_region_access_valid(mr, addr, size, false, attrs)) { *pval = unassigned_mem_read(mr, addr, size); return MEMTX_DECODE_ERROR; } @@ -XXX,XX +XXX,XX @@ MemTxResult memory_region_dispatch_write(MemoryRegion *mr, unsigned size, MemTxAttrs attrs) { - if (!memory_region_access_valid(mr, addr, size, true)) { + if (!memory_region_access_valid(mr, addr, size, true, attrs)) { unassigned_mem_write(mr, addr, data, size); return MEMTX_DECODE_ERROR; } -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to the MemoryRegion valid.accepts callback. We'll need this for subpage_accepts(). We could take the approach we used with the read and write callbacks and add new a new _with_attrs version, but since there are so few implementations of the accepts hook we just change them all. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-9-peter.maydell@linaro.org --- include/exec/memory.h | 3 ++- exec.c | 9 ++++++--- hw/hppa/dino.c | 3 ++- hw/nvram/fw_cfg.c | 12 ++++++++---- hw/scsi/esp.c | 3 ++- hw/xen/xen_pt_msi.c | 3 ++- memory.c | 5 +++-- 7 files changed, 25 insertions(+), 13 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ struct MemoryRegionOps { * as a machine check exception). */ bool (*accepts)(void *opaque, hwaddr addr, - unsigned size, bool is_write); + unsigned size, bool is_write, + MemTxAttrs attrs); } valid; /* Internal implementation constraints: */ struct { diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr, } static bool notdirty_mem_accepts(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return is_write; } @@ -XXX,XX +XXX,XX @@ static MemTxResult subpage_write(void *opaque, hwaddr addr, } static bool subpage_accepts(void *opaque, hwaddr addr, - unsigned len, bool is_write) + unsigned len, bool is_write, + MemTxAttrs attrs) { subpage_t *subpage = opaque; #if defined(DEBUG_SUBPAGE) @@ -XXX,XX +XXX,XX @@ static void readonly_mem_write(void *opaque, hwaddr addr, } static bool readonly_mem_accepts(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return is_write; } diff --git a/hw/hppa/dino.c b/hw/hppa/dino.c index XXXXXXX..XXXXXXX 100644 --- a/hw/hppa/dino.c +++ b/hw/hppa/dino.c @@ -XXX,XX +XXX,XX @@ static void gsc_to_pci_forwarding(DinoState *s) } static bool dino_chip_mem_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { switch (addr) { case DINO_IAR0: diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index XXXXXXX..XXXXXXX 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -XXX,XX +XXX,XX @@ static void fw_cfg_dma_mem_write(void *opaque, hwaddr addr, } static bool fw_cfg_dma_mem_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return !is_write || ((size == 4 && (addr == 0 || addr == 4)) || (size == 8 && addr == 0)); } static bool fw_cfg_data_mem_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return addr == 0; } @@ -XXX,XX +XXX,XX @@ static void fw_cfg_ctl_mem_write(void *opaque, hwaddr addr, } static bool fw_cfg_ctl_mem_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return is_write && size == 2; } @@ -XXX,XX +XXX,XX @@ static void fw_cfg_comb_write(void *opaque, hwaddr addr, } static bool fw_cfg_comb_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return (size == 1) || (is_write && size == 2); } diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index XXXXXXX..XXXXXXX 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -XXX,XX +XXX,XX @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) } static bool esp_mem_accepts(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return (size == 1) || (is_write && size == 4); } diff --git a/hw/xen/xen_pt_msi.c b/hw/xen/xen_pt_msi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/xen/xen_pt_msi.c +++ b/hw/xen/xen_pt_msi.c @@ -XXX,XX +XXX,XX @@ static uint64_t pci_msix_read(void *opaque, hwaddr addr, } static bool pci_msix_accepts(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return !(addr & (size - 1)); } diff --git a/memory.c b/memory.c index XXXXXXX..XXXXXXX 100644 --- a/memory.c +++ b/memory.c @@ -XXX,XX +XXX,XX @@ static void unassigned_mem_write(void *opaque, hwaddr addr, } static bool unassigned_mem_accepts(void *opaque, hwaddr addr, - unsigned size, bool is_write) + unsigned size, bool is_write, + MemTxAttrs attrs) { return false; } @@ -XXX,XX +XXX,XX @@ bool memory_region_access_valid(MemoryRegion *mr, access_size = MAX(MIN(size, access_size_max), access_size_min); for (i = 0; i < size; i += access_size) { if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size, - is_write)) { + is_write, attrs)) { return false; } } -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to flatview_access_valid(). Its callers now all have an attrs value to hand, so we can correct our earlier temporary use of MEMTXATTRS_UNSPECIFIED. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-10-peter.maydell@linaro.org --- exec.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static MemTxResult flatview_read(FlatView *fv, hwaddr addr, static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs, const uint8_t *buf, int len); static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len, - bool is_write); + bool is_write, MemTxAttrs attrs); static MemTxResult subpage_read(void *opaque, hwaddr addr, uint64_t *data, unsigned len, MemTxAttrs attrs) @@ -XXX,XX +XXX,XX @@ static bool subpage_accepts(void *opaque, hwaddr addr, #endif return flatview_access_valid(subpage->fv, addr + subpage->base, - len, is_write); + len, is_write, attrs); } static const MemoryRegionOps subpage_ops = { @@ -XXX,XX +XXX,XX @@ static void cpu_notify_map_clients(void) } static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len, - bool is_write) + bool is_write, MemTxAttrs attrs) { MemoryRegion *mr; hwaddr l, xlat; @@ -XXX,XX +XXX,XX @@ static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len, mr = flatview_translate(fv, addr, &xlat, &l, is_write); if (!memory_access_is_direct(mr, is_write)) { l = memory_access_size(mr, l, addr); - /* When our callers all have attrs we'll pass them through here */ - if (!memory_region_access_valid(mr, xlat, l, is_write, - MEMTXATTRS_UNSPECIFIED)) { + if (!memory_region_access_valid(mr, xlat, l, is_write, attrs)) { return false; } } @@ -XXX,XX +XXX,XX @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr, rcu_read_lock(); fv = address_space_to_flatview(as); - result = flatview_access_valid(fv, addr, len, is_write); + result = flatview_access_valid(fv, addr, len, is_write, attrs); rcu_read_unlock(); return result; } -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to flatview_translate(); all its callers now have attrs available. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-11-peter.maydell@linaro.org --- include/exec/memory.h | 7 ++++--- exec.c | 17 +++++++++-------- 2 files changed, 13 insertions(+), 11 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr, */ MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat, - hwaddr *len, bool is_write); + hwaddr *len, bool is_write, + MemTxAttrs attrs); static inline MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr, hwaddr *xlat, @@ -XXX,XX +XXX,XX @@ static inline MemoryRegion *address_space_translate(AddressSpace *as, MemTxAttrs attrs) { return flatview_translate(address_space_to_flatview(as), - addr, xlat, len, is_write); + addr, xlat, len, is_write, attrs); } /* address_space_access_valid: check for validity of accessing an address @@ -XXX,XX +XXX,XX @@ MemTxResult address_space_read(AddressSpace *as, hwaddr addr, rcu_read_lock(); fv = address_space_to_flatview(as); l = len; - mr = flatview_translate(fv, addr, &addr1, &l, false); + mr = flatview_translate(fv, addr, &addr1, &l, false, attrs); if (len == l && memory_access_is_direct(mr, false)) { ptr = qemu_map_ram_ptr(mr->ram_block, addr1); memcpy(buf, ptr, len); diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ iotlb_fail: /* Called from RCU critical section */ MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat, - hwaddr *plen, bool is_write) + hwaddr *plen, bool is_write, + MemTxAttrs attrs) { MemoryRegion *mr; MemoryRegionSection section; @@ -XXX,XX +XXX,XX @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr, } l = len; - mr = flatview_translate(fv, addr, &addr1, &l, true); + mr = flatview_translate(fv, addr, &addr1, &l, true, attrs); } return result; @@ -XXX,XX +XXX,XX @@ static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs, MemTxResult result = MEMTX_OK; l = len; - mr = flatview_translate(fv, addr, &addr1, &l, true); + mr = flatview_translate(fv, addr, &addr1, &l, true, attrs); result = flatview_write_continue(fv, addr, attrs, buf, len, addr1, l, mr); @@ -XXX,XX +XXX,XX @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr, } l = len; - mr = flatview_translate(fv, addr, &addr1, &l, false); + mr = flatview_translate(fv, addr, &addr1, &l, false, attrs); } return result; @@ -XXX,XX +XXX,XX @@ static MemTxResult flatview_read(FlatView *fv, hwaddr addr, MemoryRegion *mr; l = len; - mr = flatview_translate(fv, addr, &addr1, &l, false); + mr = flatview_translate(fv, addr, &addr1, &l, false, attrs); return flatview_read_continue(fv, addr, attrs, buf, len, addr1, l, mr); } @@ -XXX,XX +XXX,XX @@ static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len, while (len > 0) { l = len; - mr = flatview_translate(fv, addr, &xlat, &l, is_write); + mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs); if (!memory_access_is_direct(mr, is_write)) { l = memory_access_size(mr, l, addr); if (!memory_region_access_valid(mr, xlat, l, is_write, attrs)) { @@ -XXX,XX +XXX,XX @@ flatview_extend_translation(FlatView *fv, hwaddr addr, len = target_len; this_mr = flatview_translate(fv, addr, &xlat, - &len, is_write); + &len, is_write, attrs); if (this_mr != mr || xlat != base + done) { return done; } @@ -XXX,XX +XXX,XX @@ void *address_space_map(AddressSpace *as, l = len; rcu_read_lock(); fv = address_space_to_flatview(as); - mr = flatview_translate(fv, addr, &xlat, &l, is_write); + mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs); if (!memory_access_is_direct(mr, is_write)) { if (atomic_xchg(&bounce.in_use, true)) { -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to address_space_get_iotlb_entry(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-12-peter.maydell@linaro.org --- include/exec/memory.h | 2 +- exec.c | 2 +- hw/virtio/vhost.c | 3 ++- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -XXX,XX +XXX,XX @@ void address_space_cache_destroy(MemoryRegionCache *cache); * entry. Should be called from an RCU critical section. */ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr, - bool is_write); + bool is_write, MemTxAttrs attrs); /* address_space_translate: translate an address range into an address space * into a MemoryRegion and an address range into that section. Should be diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ static MemoryRegionSection flatview_do_translate(FlatView *fv, /* Called from RCU critical section */ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr, - bool is_write) + bool is_write, MemTxAttrs attrs) { MemoryRegionSection section; hwaddr xlat, page_mask; diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index XXXXXXX..XXXXXXX 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -XXX,XX +XXX,XX @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write) trace_vhost_iotlb_miss(dev, 1); iotlb = address_space_get_iotlb_entry(dev->vdev->dma_as, - iova, write); + iova, write, + MEMTXATTRS_UNSPECIFIED); if (iotlb.target_as != NULL) { ret = vhost_memory_region_lookup(dev, iotlb.translated_addr, &uaddr, &len); -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to flatview_do_translate(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-13-peter.maydell@linaro.org --- exec.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ unassigned: * @is_write: whether the translation operation is for write * @is_mmio: whether this can be MMIO, set true if it can * @target_as: the address space targeted by the IOMMU + * @attrs: memory transaction attributes * * This function is called from RCU critical section */ @@ -XXX,XX +XXX,XX @@ static MemoryRegionSection flatview_do_translate(FlatView *fv, hwaddr *page_mask_out, bool is_write, bool is_mmio, - AddressSpace **target_as) + AddressSpace **target_as, + MemTxAttrs attrs) { MemoryRegionSection *section; IOMMUMemoryRegion *iommu_mr; @@ -XXX,XX +XXX,XX @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr, * but page mask. */ section = flatview_do_translate(address_space_to_flatview(as), addr, &xlat, - NULL, &page_mask, is_write, false, &as); + NULL, &page_mask, is_write, false, &as, + attrs); /* Illegal translation */ if (section.mr == &io_mem_unassigned) { @@ -XXX,XX +XXX,XX @@ MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat, /* This can be MMIO, so setup MMIO bit. */ section = flatview_do_translate(fv, addr, xlat, plen, NULL, - is_write, true, &as); + is_write, true, &as, attrs); mr = section.mr; if (xen_enabled() && memory_access_is_direct(mr, is_write)) { -- 2.17.1 As part of plumbing MemTxAttrs down to the IOMMU translate method, add MemTxAttrs as an argument to address_space_translate_iommu(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180521140402.23318-14-peter.maydell@linaro.org --- exec.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/exec.c b/exec.c index XXXXXXX..XXXXXXX 100644 --- a/exec.c +++ b/exec.c @@ -XXX,XX +XXX,XX @@ address_space_translate_internal(AddressSpaceDispatch *d, hwaddr addr, hwaddr *x * @is_write: whether the translation operation is for write * @is_mmio: whether this can be MMIO, set true if it can * @target_as: the address space targeted by the IOMMU + * @attrs: transaction attributes * * This function is called from RCU critical section. It is the common * part of flatview_do_translate and address_space_translate_cached. @@ -XXX,XX +XXX,XX @@ static MemoryRegionSection address_space_translate_iommu(IOMMUMemoryRegion *iomm hwaddr *page_mask_out, bool is_write, bool is_mmio, - AddressSpace **target_as) + AddressSpace **target_as, + MemTxAttrs attrs) { MemoryRegionSection *section; hwaddr page_mask = (hwaddr)-1; @@ -XXX,XX +XXX,XX @@ static MemoryRegionSection flatview_do_translate(FlatView *fv, return address_space_translate_iommu(iommu_mr, xlat, plen_out, page_mask_out, is_write, is_mmio, - target_as); + target_as, attrs); } if (page_mask_out) { /* Not behind an IOMMU, use default page size. */ @@ -XXX,XX +XXX,XX @@ static inline MemoryRegion *address_space_translate_cached( section = address_space_translate_iommu(iommu_mr, xlat, plen, NULL, is_write, true, - &target_as); + &target_as, attrs); return section.mr; } -- 2.17.1 Provide a VMSTATE_BOOL_SUB_ARRAY to go with VMSTATE_UINT8_SUB_ARRAY and friends. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180521140402.23318-23-peter.maydell@linaro.org --- include/migration/vmstate.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index XXXXXXX..XXXXXXX 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -XXX,XX +XXX,XX @@ extern const VMStateInfo vmstate_info_qtailq; #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) +#define VMSTATE_BOOL_SUB_ARRAY(_f, _s, _start, _num) \ + VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_bool, bool) + #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) -- 2.17.1 From: Shannon Zhao <zhaoshenglong@huawei.com> acpi_data_push uses g_array_set_size to resize the memory size. If there is no enough contiguous memory, the address will be changed. So previous pointer could not be used any more. It must update the pointer and use the new one. Also, previous codes wrongly use le32 conversion of iort->node_offset for subsequent computations that will result incorrect value if host is not litlle endian. So use the non-converted one instead. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 1527663951-14552-1-git-send-email-zhaoshenglong@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt-acpi-build.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -XXX,XX +XXX,XX @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) AcpiIortItsGroup *its; AcpiIortTable *iort; AcpiIortSmmu3 *smmu; - size_t node_size, iort_length, smmu_offset = 0; + size_t node_size, iort_node_offset, iort_length, smmu_offset = 0; AcpiIortRC *rc; iort = acpi_data_push(table_data, sizeof(*iort)); @@ -XXX,XX +XXX,XX @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) iort_length = sizeof(*iort); iort->node_count = cpu_to_le32(nb_nodes); - iort->node_offset = cpu_to_le32(sizeof(*iort)); + /* + * Use a copy in case table_data->data moves during acpi_data_push + * operations. + */ + iort_node_offset = sizeof(*iort); + iort->node_offset = cpu_to_le32(iort_node_offset); /* ITS group node */ node_size = sizeof(*its) + sizeof(uint32_t); @@ -XXX,XX +XXX,XX @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) int irq = vms->irqmap[VIRT_SMMU]; /* SMMUv3 node */ - smmu_offset = iort->node_offset + node_size; + smmu_offset = iort_node_offset + node_size; node_size = sizeof(*smmu) + sizeof(*idmap); iort_length += node_size; smmu = acpi_data_push(table_data, node_size); @@ -XXX,XX +XXX,XX @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) idmap->id_count = cpu_to_le32(0xFFFF); idmap->output_base = 0; /* output IORT node is the ITS group node (the first node) */ - idmap->output_reference = cpu_to_le32(iort->node_offset); + idmap->output_reference = cpu_to_le32(iort_node_offset); } /* Root Complex Node */ @@ -XXX,XX +XXX,XX @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) idmap->output_reference = cpu_to_le32(smmu_offset); } else { /* output IORT node is the ITS group node (the first node) */ - idmap->output_reference = cpu_to_le32(iort->node_offset); + idmap->output_reference = cpu_to_le32(iort_node_offset); } + /* + * Update the pointer address in case table_data->data moves during above + * acpi_data_push operations. + */ + iort = (AcpiIortTable *)(table_data->data + iort_start); iort->length = cpu_to_le32(iort_length); build_header(linker, table_data, (void *)(table_data->data + iort_start), -- 2.17.1 From: Shannon Zhao <zhaoshenglong@huawei.com> kvm_irqchip_create called by kvm_init will call kvm_init_irq_routing to initialize global capability variables. If we call kvm_init_irq_routing in GIC realize function, previous allocated memory will leak. Fix this by deleting the unnecessary call. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 1527750994-14360-1-git-send-email-zhaoshenglong@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/intc/arm_gic_kvm.c | 1 - hw/intc/arm_gicv3_kvm.c | 1 - 2 files changed, 2 deletions(-) diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/arm_gic_kvm.c +++ b/hw/intc/arm_gic_kvm.c @@ -XXX,XX +XXX,XX @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp) if (kvm_has_gsi_routing()) { /* set up irq routing */ - kvm_init_irq_routing(kvm_state); for (i = 0; i < s->num_irq - GIC_INTERNAL; ++i) { kvm_irqchip_add_irq_route(kvm_state, i, 0, i); } diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/arm_gicv3_kvm.c +++ b/hw/intc/arm_gicv3_kvm.c @@ -XXX,XX +XXX,XX @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp) if (kvm_has_gsi_routing()) { /* set up irq routing */ - kvm_init_irq_routing(kvm_state); for (i = 0; i < s->num_irq - GIC_INTERNAL; ++i) { kvm_irqchip_add_irq_route(kvm_state, i, 0, i); } -- 2.17.1 Big pullreq this week, though none of the new features are particularly earthshaking. Most of the bulk is from code cleanup patches from me or rth. thanks -- PMM The following changes since commit b651b80822fa8cb66ca30087ac7fbc75507ae5d2: Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.0-pull-request' into staging (2020-02-20 17:35:42 +0000) are available in the Git repository at: https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20200221 for you to fetch changes up to 270a679b3f950d7c4c600f324aab8bff292d0971: target/arm: Add missing checks for fpsp_v2 (2020-02-21 12:54:25 +0000) ---------------------------------------------------------------- target-arm queue: * aspeed/scu: Implement chip ID register * hw/misc/iotkit-secctl: Fix writing to 'PPC Interrupt Clear' register * mainstone: Make providing flash images non-mandatory * z2: Make providing flash images non-mandatory * Fix failures to flush SVE high bits after AdvSIMD INS/ZIP/UZP/TRN/TBL/TBX/EXT * Minor performance improvement: spend less time recalculating hflags values * Code cleanup to isar_feature function tests * Implement ARMv8.1-PMU and ARMv8.4-PMU extensions * Bugfix: correct handling of PMCR_EL0.LC bit * Bugfix: correct definition of PMCRDP * Correctly implement ACTLR2, HACTLR2 * allwinner: Wire up USB ports * Vectorize emulation of USHL, SSHL, PMUL* * xilinx_spips: Correct the number of dummy cycles for the FAST_READ_4 cmd * sh4: Fix PCI ISA IO memory subregion * Code cleanup to use more isar_feature tests and fewer ARM_FEATURE_* tests ---------------------------------------------------------------- Francisco Iglesias (1): xilinx_spips: Correct the number of dummy cycles for the FAST_READ_4 cmd Guenter Roeck (6): mainstone: Make providing flash images non-mandatory z2: Make providing flash images non-mandatory hw: usb: hcd-ohci: Move OHCISysBusState and TYPE_SYSBUS_OHCI to include file hcd-ehci: Introduce "companion-enable" sysbus property arm: allwinner: Wire up USB ports sh4: Fix PCI ISA IO memory subregion Joel Stanley (2): aspeed/scu: Create separate write callbacks aspeed/scu: Implement chip ID register Peter Maydell (21): target/arm: Add _aa32_ to isar_feature functions testing 32-bit ID registers target/arm: Check aa32_pan in take_aarch32_exception(), not aa64_pan target/arm: Add isar_feature_any_fp16 and document naming/usage conventions target/arm: Define and use any_predinv isar_feature test target/arm: Factor out PMU register definitions target/arm: Add and use FIELD definitions for ID_AA64DFR0_EL1 target/arm: Use FIELD macros for clearing ID_DFR0 PERFMON field target/arm: Define an aa32_pmu_8_1 isar feature test function target/arm: Add _aa64_ and _any_ versions of pmu_8_1 isar checks target/arm: Stop assuming DBGDIDR always exists target/arm: Move DBGDIDR into ARMISARegisters target/arm: Read debug-related ID registers from KVM target/arm: Implement ARMv8.1-PMU extension target/arm: Implement ARMv8.4-PMU extension target/arm: Provide ARMv8.4-PMU in '-cpu max' target/arm: Correct definition of PMCRDP target/arm: Correct handling of PMCR_EL0.LC bit target/arm: Test correct register in aa32_pan and aa32_ats1e1 checks target/arm: Use isar_feature function for testing AA32HPD feature target/arm: Use FIELD_EX32 for testing 32-bit fields target/arm: Correctly implement ACTLR2, HACTLR2 Philippe Mathieu-Daudé (1): hw/misc/iotkit-secctl: Fix writing to 'PPC Interrupt Clear' register Richard Henderson (21): target/arm: Flush high bits of sve register after AdvSIMD EXT target/arm: Flush high bits of sve register after AdvSIMD TBL/TBX target/arm: Flush high bits of sve register after AdvSIMD ZIP/UZP/TRN target/arm: Flush high bits of sve register after AdvSIMD INS target/arm: Use bit 55 explicitly for pauth target/arm: Fix select for aa64_va_parameters_both target/arm: Remove ttbr1_valid check from get_phys_addr_lpae target/arm: Split out aa64_va_parameter_tbi, aa64_va_parameter_tbid target/arm: Vectorize USHL and SSHL target/arm: Convert PMUL.8 to gvec target/arm: Convert PMULL.64 to gvec target/arm: Convert PMULL.8 to gvec target/arm: Rename isar_feature_aa32_simd_r32 target/arm: Use isar_feature_aa32_simd_r32 more places target/arm: Set MVFR0.FPSP for ARMv5 cpus target/arm: Add isar_feature_aa32_simd_r16 target/arm: Rename isar_feature_aa32_fpdp_v2 target/arm: Add isar_feature_aa32_{fpsp_v2, fpsp_v3, fpdp_v3} target/arm: Perform fpdp_v2 check first target/arm: Replace ARM_FEATURE_VFP3 checks with fp{sp, dp}_v3 target/arm: Add missing checks for fpsp_v2 hw/usb/hcd-ohci.h | 16 ++ include/hw/arm/allwinner-a10.h | 6 + target/arm/cpu.h | 173 ++++++++++++--- target/arm/helper-sve.h | 2 + target/arm/helper.h | 21 +- target/arm/internals.h | 47 +++- target/arm/translate.h | 6 + hw/arm/allwinner-a10.c | 43 ++++ hw/arm/mainstone.c | 11 +- hw/arm/z2.c | 6 - hw/intc/armv7m_nvic.c | 30 +-- hw/misc/aspeed_scu.c | 93 ++++++-- hw/misc/iotkit-secctl.c | 2 +- hw/sh4/sh_pci.c | 11 +- hw/ssi/xilinx_spips.c | 2 +- hw/usb/hcd-ehci-sysbus.c | 2 + hw/usb/hcd-ohci.c | 15 -- linux-user/arm/signal.c | 4 +- linux-user/elfload.c | 4 +- target/arm/arch_dump.c | 11 +- target/arm/cpu.c | 175 +++++++-------- target/arm/cpu64.c | 58 +++-- target/arm/debug_helper.c | 6 +- target/arm/helper.c | 472 +++++++++++++++++++++++------------------ target/arm/kvm32.c | 25 +++ target/arm/kvm64.c | 46 ++++ target/arm/m_helper.c | 11 +- target/arm/machine.c | 3 +- target/arm/neon_helper.c | 117 ---------- target/arm/pauth_helper.c | 3 +- target/arm/translate-a64.c | 92 ++++---- target/arm/translate-vfp.inc.c | 263 ++++++++++++++--------- target/arm/translate.c | 356 ++++++++++++++++++++++++++----- target/arm/vec_helper.c | 211 ++++++++++++++++++ target/arm/vfp_helper.c | 2 +- 35 files changed, 1564 insertions(+), 781 deletions(-) From: Joel Stanley <joel@jms.id.au> This splits the common write callback into separate ast2400 and ast2500 implementations. This makes it clearer when implementing differing behaviour. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200121013302.43839-2-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/misc/aspeed_scu.c | 80 +++++++++++++++++++++++++++++++------------- 1 file changed, 57 insertions(+), 23 deletions(-) diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index XXXXXXX..XXXXXXX 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -XXX,XX +XXX,XX @@ static uint64_t aspeed_scu_read(void *opaque, hwaddr offset, unsigned size) return s->regs[reg]; } -static void aspeed_scu_write(void *opaque, hwaddr offset, uint64_t data, - unsigned size) +static void aspeed_ast2400_scu_write(void *opaque, hwaddr offset, + uint64_t data, unsigned size) +{ + AspeedSCUState *s = ASPEED_SCU(opaque); + int reg = TO_REG(offset); + + if (reg >= ASPEED_SCU_NR_REGS) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n", + __func__, offset); + return; + } + + if (reg > PROT_KEY && reg < CPU2_BASE_SEG1 && + !s->regs[PROT_KEY]) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: SCU is locked!\n", __func__); + } + + trace_aspeed_scu_write(offset, size, data); + + switch (reg) { + case PROT_KEY: + s->regs[reg] = (data == ASPEED_SCU_PROT_KEY) ? 1 : 0; + return; + case SILICON_REV: + case FREQ_CNTR_EVAL: + case VGA_SCRATCH1 ... VGA_SCRATCH8: + case RNG_DATA: + case FREE_CNTR4: + case FREE_CNTR4_EXT: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n", + __func__, offset); + return; + } + + s->regs[reg] = data; +} + +static void aspeed_ast2500_scu_write(void *opaque, hwaddr offset, + uint64_t data, unsigned size) { AspeedSCUState *s = ASPEED_SCU(opaque); int reg = TO_REG(offset); @@ -XXX,XX +XXX,XX @@ static void aspeed_scu_write(void *opaque, hwaddr offset, uint64_t data, case PROT_KEY: s->regs[reg] = (data == ASPEED_SCU_PROT_KEY) ? 1 : 0; return; - case CLK_SEL: - s->regs[reg] = data; - break; case HW_STRAP1: - if (ASPEED_IS_AST2500(s->regs[SILICON_REV])) { - s->regs[HW_STRAP1] |= data; - return; - } - /* Jump to assignment below */ - break; + s->regs[HW_STRAP1] |= data; + return; case SILICON_REV: - if (ASPEED_IS_AST2500(s->regs[SILICON_REV])) { - s->regs[HW_STRAP1] &= ~data; - } else { - qemu_log_mask(LOG_GUEST_ERROR, - "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n", - __func__, offset); - } - /* Avoid assignment below, we've handled everything */ + s->regs[HW_STRAP1] &= ~data; return; case FREQ_CNTR_EVAL: case VGA_SCRATCH1 ... VGA_SCRATCH8: @@ -XXX,XX +XXX,XX @@ static void aspeed_scu_write(void *opaque, hwaddr offset, uint64_t data, s->regs[reg] = data; } -static const MemoryRegionOps aspeed_scu_ops = { +static const MemoryRegionOps aspeed_ast2400_scu_ops = { .read = aspeed_scu_read, - .write = aspeed_scu_write, + .write = aspeed_ast2400_scu_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid.min_access_size = 4, + .valid.max_access_size = 4, + .valid.unaligned = false, +}; + +static const MemoryRegionOps aspeed_ast2500_scu_ops = { + .read = aspeed_scu_read, + .write = aspeed_ast2500_scu_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid.min_access_size = 4, .valid.max_access_size = 4, @@ -XXX,XX +XXX,XX @@ static void aspeed_2400_scu_class_init(ObjectClass *klass, void *data) asc->calc_hpll = aspeed_2400_scu_calc_hpll; asc->apb_divider = 2; asc->nr_regs = ASPEED_SCU_NR_REGS; - asc->ops = &aspeed_scu_ops; + asc->ops = &aspeed_ast2400_scu_ops; } static const TypeInfo aspeed_2400_scu_info = { @@ -XXX,XX +XXX,XX @@ static void aspeed_2500_scu_class_init(ObjectClass *klass, void *data) asc->calc_hpll = aspeed_2500_scu_calc_hpll; asc->apb_divider = 4; asc->nr_regs = ASPEED_SCU_NR_REGS; - asc->ops = &aspeed_scu_ops; + asc->ops = &aspeed_ast2500_scu_ops; } static const TypeInfo aspeed_2500_scu_info = { -- 2.20.1 From: Joel Stanley <joel@jms.id.au> This returns a fixed but non-zero value for the chip id. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200121013302.43839-3-joel@jms.id.au Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/misc/aspeed_scu.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index XXXXXXX..XXXXXXX 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -XXX,XX +XXX,XX @@ #define CPU2_BASE_SEG4 TO_REG(0x110) #define CPU2_BASE_SEG5 TO_REG(0x114) #define CPU2_CACHE_CTRL TO_REG(0x118) +#define CHIP_ID0 TO_REG(0x150) +#define CHIP_ID1 TO_REG(0x154) #define UART_HPLL_CLK TO_REG(0x160) #define PCIE_CTRL TO_REG(0x180) #define BMC_MMIO_CTRL TO_REG(0x184) @@ -XXX,XX +XXX,XX @@ #define AST2600_HW_STRAP2_PROT TO_REG(0x518) #define AST2600_RNG_CTRL TO_REG(0x524) #define AST2600_RNG_DATA TO_REG(0x540) +#define AST2600_CHIP_ID0 TO_REG(0x5B0) +#define AST2600_CHIP_ID1 TO_REG(0x5B4) #define AST2600_CLK TO_REG(0x40) @@ -XXX,XX +XXX,XX @@ static const uint32_t ast2500_a1_resets[ASPEED_SCU_NR_REGS] = { [CPU2_BASE_SEG1] = 0x80000000U, [CPU2_BASE_SEG4] = 0x1E600000U, [CPU2_BASE_SEG5] = 0xC0000000U, + [CHIP_ID0] = 0x1234ABCDU, + [CHIP_ID1] = 0x88884444U, [UART_HPLL_CLK] = 0x00001903U, [PCIE_CTRL] = 0x0000007BU, [BMC_DEV_ID] = 0x00002402U @@ -XXX,XX +XXX,XX @@ static void aspeed_ast2500_scu_write(void *opaque, hwaddr offset, case RNG_DATA: case FREE_CNTR4: case FREE_CNTR4_EXT: + case CHIP_ID0: + case CHIP_ID1: qemu_log_mask(LOG_GUEST_ERROR, "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n", __func__, offset); @@ -XXX,XX +XXX,XX @@ static void aspeed_ast2600_scu_write(void *opaque, hwaddr offset, case AST2600_RNG_DATA: case AST2600_SILICON_REV: case AST2600_SILICON_REV2: + case AST2600_CHIP_ID0: + case AST2600_CHIP_ID1: /* Add read only registers here */ qemu_log_mask(LOG_GUEST_ERROR, "%s: Write to read-only offset 0x%" HWADDR_PRIx "\n", @@ -XXX,XX +XXX,XX @@ static const uint32_t ast2600_a0_resets[ASPEED_AST2600_SCU_NR_REGS] = { [AST2600_CLK_STOP_CTRL2] = 0xFFF0FFF0, [AST2600_SDRAM_HANDSHAKE] = 0x00000040, /* SoC completed DRAM init */ [AST2600_HPLL_PARAM] = 0x1000405F, + [AST2600_CHIP_ID0] = 0x1234ABCD, + [AST2600_CHIP_ID1] = 0x88884444, + }; static void aspeed_ast2600_scu_reset(DeviceState *dev) -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> Fix warning reported by Clang static code analyzer: CC hw/misc/iotkit-secctl.o hw/misc/iotkit-secctl.c:343:9: warning: Value stored to 'value' is never read value &= 0x00f000f3; ^ ~~~~~~~~~~ Fixes: b3717c23e1c Reported-by: Clang Static Analyzer Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200217132922.24607-1-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/misc/iotkit-secctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/misc/iotkit-secctl.c b/hw/misc/iotkit-secctl.c index XXXXXXX..XXXXXXX 100644 --- a/hw/misc/iotkit-secctl.c +++ b/hw/misc/iotkit-secctl.c @@ -XXX,XX +XXX,XX @@ static MemTxResult iotkit_secctl_s_write(void *opaque, hwaddr addr, qemu_set_irq(s->sec_resp_cfg, s->secrespcfg); break; case A_SECPPCINTCLR: - value &= 0x00f000f3; + s->secppcintstat &= ~(value & 0x00f000f3); foreach_ppc(s, iotkit_secctl_ppc_update_irq_clear); break; case A_SECPPCINTEN: -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> Up to now, the mainstone machine only boots if two flash images are provided. This is not really necessary; the machine can boot from initrd or from SD without it. At the same time, having to provide dummy flash images is a nuisance and does not add any real value. Make it optional. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200217210824.18513-1-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/mainstone.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/hw/arm/mainstone.c b/hw/arm/mainstone.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/mainstone.c +++ b/hw/arm/mainstone.c @@ -XXX,XX +XXX,XX @@ static void mainstone_common_init(MemoryRegion *address_space_mem, /* There are two 32MiB flash devices on the board */ for (i = 0; i < 2; i ++) { dinfo = drive_get(IF_PFLASH, 0, i); - if (!dinfo) { - if (qtest_enabled()) { - break; - } - error_report("Two flash images must be given with the " - "'pflash' parameter"); - exit(1); - } - if (!pflash_cfi01_register(mainstone_flash_base[i], i ? "mainstone.flash1" : "mainstone.flash0", MAINSTONE_FLASH, - blk_by_legacy_dinfo(dinfo), + dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, sector_len, 4, 0, 0, 0, 0, be)) { error_report("Error registering flash memory"); exit(1); -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> Up to now, the z2 machine only boots if a flash image is provided. This is not really necessary; the machine can boot from initrd or from SD without it. At the same time, having to provide dummy flash images is a nuisance and does not add any real value. Make it optional. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200217210903.18602-1-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/z2.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/hw/arm/z2.c b/hw/arm/z2.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/z2.c +++ b/hw/arm/z2.c @@ -XXX,XX +XXX,XX @@ static void z2_init(MachineState *machine) be = 0; #endif dinfo = drive_get(IF_PFLASH, 0, 0); - if (!dinfo && !qtest_enabled()) { - error_report("Flash image must be given with the " - "'pflash' parameter"); - exit(1); - } - if (!pflash_cfi01_register(Z2_FLASH_BASE, "z2.flash0", Z2_FLASH_SIZE, dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, sector_len, 4, 0, 0, 0, 0, be)) { -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Writes to AdvSIMD registers flush the bits above 128. Buglink: https://bugs.launchpad.net/bugs/1863247 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214194643.23317-2-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 | 1 + 1 file changed, 1 insertion(+) 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_simd_ext(DisasContext *s, uint32_t insn) tcg_temp_free_i64(tcg_resl); write_vec_element(s, tcg_resh, rd, 1, MO_64); tcg_temp_free_i64(tcg_resh); + clear_vec_high(s, true, rd); } /* TBL/TBX -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Writes to AdvSIMD registers flush the bits above 128. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214194643.23317-3-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 | 1 + 1 file changed, 1 insertion(+) 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_simd_tb(DisasContext *s, uint32_t insn) tcg_temp_free_i64(tcg_resl); write_vec_element(s, tcg_resh, rd, 1, MO_64); tcg_temp_free_i64(tcg_resh); + clear_vec_high(s, true, rd); } /* ZIP/UZP/TRN -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Writes to AdvSIMD registers flush the bits above 128. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214194643.23317-4-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 | 1 + 1 file changed, 1 insertion(+) 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_simd_zip_trn(DisasContext *s, uint32_t insn) tcg_temp_free_i64(tcg_resl); write_vec_element(s, tcg_resh, rd, 1, MO_64); tcg_temp_free_i64(tcg_resh); + clear_vec_high(s, true, rd); } /* -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Writes to AdvSIMD registers flush the bits above 128. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214194643.23317-5-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 | 6 ++++++ 1 file changed, 6 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_simd_inse(DisasContext *s, int rd, int rn, write_vec_element(s, tmp, rd, dst_index, size); tcg_temp_free_i64(tmp); + + /* INS is considered a 128-bit write for SVE. */ + clear_vec_high(s, true, rd); } @@ -XXX,XX +XXX,XX @@ static void handle_simd_insg(DisasContext *s, int rd, int rn, int imm5) idx = extract32(imm5, 1 + size, 4 - size); write_vec_element(s, cpu_reg(s, rn), rd, idx, size); + + /* INS is considered a 128-bit write for SVE. */ + clear_vec_high(s, true, rd); } /* -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The psuedocode in aarch64/functions/pac/auth/Auth and aarch64/functions/pac/strip/Strip always uses bit 55 for extfield and do not consider if the current regime has 2 ranges. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200216194343.21331-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/pauth_helper.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/arm/pauth_helper.c b/target/arm/pauth_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/pauth_helper.c +++ b/target/arm/pauth_helper.c @@ -XXX,XX +XXX,XX @@ static uint64_t pauth_addpac(CPUARMState *env, uint64_t ptr, uint64_t modifier, static uint64_t pauth_original_ptr(uint64_t ptr, ARMVAParameters param) { - uint64_t extfield = -param.select; + /* Note that bit 55 is used whether or not the regime has 2 ranges. */ + uint64_t extfield = sextract64(ptr, 55, 1); int bot_pac_bit = 64 - param.tsz; int top_pac_bit = 64 - 8 * param.tbi; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Select should always be 0 for a regime with one range. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216194343.21331-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.c | 46 +++++++++++++++++++++++---------------------- 1 file changed, 24 insertions(+), 22 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 @@ ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, bool tbi, tbid, epd, hpd, using16k, using64k; int select, tsz; - /* - * Bit 55 is always between the two regions, and is canonical for - * determining if address tagging is enabled. - */ - select = extract64(va, 55, 1); - if (!regime_has_2_ranges(mmu_idx)) { + select = 0; tsz = extract32(tcr, 0, 6); using64k = extract32(tcr, 14, 1); using16k = extract32(tcr, 15, 1); @@ -XXX,XX +XXX,XX @@ ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, tbid = extract32(tcr, 29, 1); } epd = false; - } else if (!select) { - tsz = extract32(tcr, 0, 6); - epd = extract32(tcr, 7, 1); - using64k = extract32(tcr, 14, 1); - using16k = extract32(tcr, 15, 1); - tbi = extract64(tcr, 37, 1); - hpd = extract64(tcr, 41, 1); - tbid = extract64(tcr, 51, 1); } else { - int tg = extract32(tcr, 30, 2); - using16k = tg == 1; - using64k = tg == 3; - tsz = extract32(tcr, 16, 6); - epd = extract32(tcr, 23, 1); - tbi = extract64(tcr, 38, 1); - hpd = extract64(tcr, 42, 1); - tbid = extract64(tcr, 52, 1); + /* + * Bit 55 is always between the two regions, and is canonical for + * determining if address tagging is enabled. + */ + select = extract64(va, 55, 1); + if (!select) { + tsz = extract32(tcr, 0, 6); + epd = extract32(tcr, 7, 1); + using64k = extract32(tcr, 14, 1); + using16k = extract32(tcr, 15, 1); + tbi = extract64(tcr, 37, 1); + hpd = extract64(tcr, 41, 1); + tbid = extract64(tcr, 51, 1); + } else { + int tg = extract32(tcr, 30, 2); + using16k = tg == 1; + using64k = tg == 3; + tsz = extract32(tcr, 16, 6); + epd = extract32(tcr, 23, 1); + tbi = extract64(tcr, 38, 1); + hpd = extract64(tcr, 42, 1); + tbid = extract64(tcr, 52, 1); + } } tsz = MIN(tsz, 39); /* TODO: ARMv8.4-TTST */ tsz = MAX(tsz, 16); /* TODO: ARMv8.2-LVA */ -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Now that aa64_va_parameters_both sets select based on the number of ranges in the regime, the ttbr1_valid check is redundant. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216194343.21331-4-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 | 6 +----- 1 file changed, 1 insertion(+), 5 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 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address, TCR *tcr = regime_tcr(env, mmu_idx); int ap, ns, xn, pxn; uint32_t el = regime_el(env, mmu_idx); - bool ttbr1_valid; uint64_t descaddrmask; bool aarch64 = arm_el_is_aa64(env, el); bool guarded = false; @@ -XXX,XX +XXX,XX @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address, param = aa64_va_parameters(env, address, mmu_idx, access_type != MMU_INST_FETCH); level = 0; - ttbr1_valid = regime_has_2_ranges(mmu_idx); addrsize = 64 - 8 * param.tbi; inputsize = 64 - param.tsz; } else { param = aa32_va_parameters(env, address, mmu_idx); level = 1; - /* There is no TTBR1 for EL2 */ - ttbr1_valid = (el != 2); addrsize = (mmu_idx == ARMMMUIdx_Stage2 ? 40 : 32); inputsize = addrsize - param.tsz; } @@ -XXX,XX +XXX,XX @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address, if (inputsize < addrsize) { target_ulong top_bits = sextract64(address, inputsize, addrsize - inputsize); - if (-top_bits != param.select || (param.select && !ttbr1_valid)) { + if (-top_bits != param.select) { /* The gap between the two regions is a Translation fault */ fault_type = ARMFault_Translation; goto do_fault; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> For the purpose of rebuild_hflags_a64, we do not need to compute all of the va parameters, only tbi. Moreover, we can compute them in a form that is more useful to storing in hflags. This eliminates the need for aa64_va_parameter_both, so fold that in to aa64_va_parameter. The remaining calls to aa64_va_parameter are in get_phys_addr_lpae and in pauth_helper.c. This reduces the total cpu consumption of aa64_va_parameter in a kernel boot plus a kvm guest kernel boot from 3% to 0.5%. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216194343.21331-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/internals.h | 3 -- target/arm/helper.c | 68 +++++++++++++++++++++++------------------- 2 files changed, 37 insertions(+), 34 deletions(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ typedef struct ARMVAParameters { unsigned tsz : 8; unsigned select : 1; bool tbi : 1; - bool tbid : 1; bool epd : 1; bool hpd : 1; bool using16k : 1; bool using64k : 1; } ARMVAParameters; -ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, - ARMMMUIdx mmu_idx); ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va, ARMMMUIdx mmu_idx, bool data); 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 @@ static uint8_t convert_stage2_attrs(CPUARMState *env, uint8_t s2attrs) } #endif /* !CONFIG_USER_ONLY */ -ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, - ARMMMUIdx mmu_idx) +static int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx) +{ + if (regime_has_2_ranges(mmu_idx)) { + return extract64(tcr, 37, 2); + } else if (mmu_idx == ARMMMUIdx_Stage2) { + return 0; /* VTCR_EL2 */ + } else { + return extract32(tcr, 20, 1); + } +} + +static int aa64_va_parameter_tbid(uint64_t tcr, ARMMMUIdx mmu_idx) +{ + if (regime_has_2_ranges(mmu_idx)) { + return extract64(tcr, 51, 2); + } else if (mmu_idx == ARMMMUIdx_Stage2) { + return 0; /* VTCR_EL2 */ + } else { + return extract32(tcr, 29, 1); + } +} + +ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va, + ARMMMUIdx mmu_idx, bool data) { uint64_t tcr = regime_tcr(env, mmu_idx)->raw_tcr; - bool tbi, tbid, epd, hpd, using16k, using64k; - int select, tsz; + bool epd, hpd, using16k, using64k; + int select, tsz, tbi; if (!regime_has_2_ranges(mmu_idx)) { select = 0; @@ -XXX,XX +XXX,XX @@ ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, using16k = extract32(tcr, 15, 1); if (mmu_idx == ARMMMUIdx_Stage2) { /* VTCR_EL2 */ - tbi = tbid = hpd = false; + hpd = false; } else { - tbi = extract32(tcr, 20, 1); hpd = extract32(tcr, 24, 1); - tbid = extract32(tcr, 29, 1); } epd = false; } else { @@ -XXX,XX +XXX,XX @@ ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, epd = extract32(tcr, 7, 1); using64k = extract32(tcr, 14, 1); using16k = extract32(tcr, 15, 1); - tbi = extract64(tcr, 37, 1); hpd = extract64(tcr, 41, 1); - tbid = extract64(tcr, 51, 1); } else { int tg = extract32(tcr, 30, 2); using16k = tg == 1; using64k = tg == 3; tsz = extract32(tcr, 16, 6); epd = extract32(tcr, 23, 1); - tbi = extract64(tcr, 38, 1); hpd = extract64(tcr, 42, 1); - tbid = extract64(tcr, 52, 1); } } tsz = MIN(tsz, 39); /* TODO: ARMv8.4-TTST */ tsz = MAX(tsz, 16); /* TODO: ARMv8.2-LVA */ + /* Present TBI as a composite with TBID. */ + tbi = aa64_va_parameter_tbi(tcr, mmu_idx); + if (!data) { + tbi &= ~aa64_va_parameter_tbid(tcr, mmu_idx); + } + tbi = (tbi >> select) & 1; + return (ARMVAParameters) { .tsz = tsz, .select = select, .tbi = tbi, - .tbid = tbid, .epd = epd, .hpd = hpd, .using16k = using16k, @@ -XXX,XX +XXX,XX @@ ARMVAParameters aa64_va_parameters_both(CPUARMState *env, uint64_t va, }; } -ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va, - ARMMMUIdx mmu_idx, bool data) -{ - ARMVAParameters ret = aa64_va_parameters_both(env, va, mmu_idx); - - /* Present TBI as a composite with TBID. */ - ret.tbi &= (data || !ret.tbid); - return ret; -} - #ifndef CONFIG_USER_ONLY static ARMVAParameters aa32_va_parameters(CPUARMState *env, uint32_t va, ARMMMUIdx mmu_idx) @@ -XXX,XX +XXX,XX @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, { uint32_t flags = rebuild_hflags_aprofile(env); ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx); - ARMVAParameters p0 = aa64_va_parameters_both(env, 0, stage1); + uint64_t tcr = regime_tcr(env, mmu_idx)->raw_tcr; uint64_t sctlr; int tbii, tbid; flags = FIELD_DP32(flags, TBFLAG_ANY, AARCH64_STATE, 1); /* Get control bits for tagged addresses. */ - if (regime_has_2_ranges(mmu_idx)) { - ARMVAParameters p1 = aa64_va_parameters_both(env, -1, stage1); - tbid = (p1.tbi << 1) | p0.tbi; - tbii = tbid & ~((p1.tbid << 1) | p0.tbid); - } else { - tbid = p0.tbi; - tbii = tbid & !p0.tbid; - } + tbid = aa64_va_parameter_tbi(tcr, mmu_idx); + tbii = tbid & ~aa64_va_parameter_tbid(tcr, mmu_idx); flags = FIELD_DP32(flags, TBFLAG_A64, TBII, tbii); flags = FIELD_DP32(flags, TBFLAG_A64, TBID, tbid); -- 2.20.1 Enforce a convention that an isar_feature function that tests a 32-bit ID register always has _aa32_ in its name, and one that tests a 64-bit ID register always has _aa64_ in its name. We already follow this except for three cases: thumb_div, arm_div and jazelle, which all need _aa32_ adding. (As noted in the comment, isar_feature_aa32_fp16_arith() is an exception in that it currently tests ID_AA64PFR0_EL1, but will switch to MVFR1 once we've properly implemented FP16 for AArch32.) Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-2-peter.maydell@linaro.org --- target/arm/cpu.h | 13 ++++++++++--- target/arm/internals.h | 2 +- linux-user/elfload.c | 4 ++-- target/arm/cpu.c | 6 ++++-- target/arm/helper.c | 2 +- target/arm/translate.c | 6 +++--- 6 files changed, 21 insertions(+), 12 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline uint64_t *aa64_vfp_qreg(CPUARMState *env, unsigned regno) /* Shared between translate-sve.c and sve_helper.c. */ extern const uint64_t pred_esz_masks[4]; +/* + * Naming convention for isar_feature functions: + * Functions which test 32-bit ID registers should have _aa32_ in + * their name. Functions which test 64-bit ID registers should have + * _aa64_ in their name. + */ + /* * 32-bit feature tests via id registers. */ -static inline bool isar_feature_thumb_div(const ARMISARegisters *id) +static inline bool isar_feature_aa32_thumb_div(const ARMISARegisters *id) { return FIELD_EX32(id->id_isar0, ID_ISAR0, DIVIDE) != 0; } -static inline bool isar_feature_arm_div(const ARMISARegisters *id) +static inline bool isar_feature_aa32_arm_div(const ARMISARegisters *id) { return FIELD_EX32(id->id_isar0, ID_ISAR0, DIVIDE) > 1; } -static inline bool isar_feature_jazelle(const ARMISARegisters *id) +static inline bool isar_feature_aa32_jazelle(const ARMISARegisters *id) { return FIELD_EX32(id->id_isar1, ID_ISAR1, JAZELLE) != 0; } diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features, if ((features >> ARM_FEATURE_THUMB2) & 1) { valid |= CPSR_IT; } - if (isar_feature_jazelle(id)) { + if (isar_feature_aa32_jazelle(id)) { valid |= CPSR_J; } if (isar_feature_aa32_pan(id)) { diff --git a/linux-user/elfload.c b/linux-user/elfload.c index XXXXXXX..XXXXXXX 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -XXX,XX +XXX,XX @@ static uint32_t get_elf_hwcap(void) GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPv3); GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS); GET_FEATURE(ARM_FEATURE_VFP4, ARM_HWCAP_ARM_VFPv4); - GET_FEATURE_ID(arm_div, ARM_HWCAP_ARM_IDIVA); - GET_FEATURE_ID(thumb_div, ARM_HWCAP_ARM_IDIVT); + GET_FEATURE_ID(aa32_arm_div, ARM_HWCAP_ARM_IDIVA); + GET_FEATURE_ID(aa32_thumb_div, ARM_HWCAP_ARM_IDIVT); /* All QEMU's VFPv3 CPUs have 32 registers, see VFP_DREG in translate.c. * Note that the ARM_HWCAP_ARM_VFPv3D16 bit is always the inverse of * ARM_HWCAP_ARM_VFPD32 (and so always clear for QEMU); it is unrelated 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_realizefn(DeviceState *dev, Error **errp) * Presence of EL2 itself is ARM_FEATURE_EL2, and of the * Security Extensions is ARM_FEATURE_EL3. */ - assert(!tcg_enabled() || no_aa32 || cpu_isar_feature(arm_div, cpu)); + assert(!tcg_enabled() || no_aa32 || + cpu_isar_feature(aa32_arm_div, cpu)); set_feature(env, ARM_FEATURE_LPAE); set_feature(env, ARM_FEATURE_V7); } @@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) if (arm_feature(env, ARM_FEATURE_V6)) { set_feature(env, ARM_FEATURE_V5); if (!arm_feature(env, ARM_FEATURE_M)) { - assert(!tcg_enabled() || no_aa32 || cpu_isar_feature(jazelle, cpu)); + assert(!tcg_enabled() || no_aa32 || + cpu_isar_feature(aa32_jazelle, cpu)); set_feature(env, ARM_FEATURE_AUXCR); } } 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 register_cp_regs_for_features(ARMCPU *cpu) if (arm_feature(env, ARM_FEATURE_LPAE)) { define_arm_cp_regs(cpu, lpae_cp_reginfo); } - if (cpu_isar_feature(jazelle, cpu)) { + if (cpu_isar_feature(aa32_jazelle, cpu)) { define_arm_cp_regs(cpu, jazelle_regs); } /* Slightly awkwardly, the OMAP and StrongARM cores need all of 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 @@ #define ENABLE_ARCH_5 arm_dc_feature(s, ARM_FEATURE_V5) /* currently all emulated v5 cores are also v5TE, so don't bother */ #define ENABLE_ARCH_5TE arm_dc_feature(s, ARM_FEATURE_V5) -#define ENABLE_ARCH_5J dc_isar_feature(jazelle, s) +#define ENABLE_ARCH_5J dc_isar_feature(aa32_jazelle, s) #define ENABLE_ARCH_6 arm_dc_feature(s, ARM_FEATURE_V6) #define ENABLE_ARCH_6K arm_dc_feature(s, ARM_FEATURE_V6K) #define ENABLE_ARCH_6T2 arm_dc_feature(s, ARM_FEATURE_THUMB2) @@ -XXX,XX +XXX,XX @@ static bool op_div(DisasContext *s, arg_rrr *a, bool u) TCGv_i32 t1, t2; if (s->thumb - ? !dc_isar_feature(thumb_div, s) - : !dc_isar_feature(arm_div, s)) { + ? !dc_isar_feature(aa32_thumb_div, s) + : !dc_isar_feature(aa32_arm_div, s)) { return false; } -- 2.20.1 In take_aarch32_exception(), we know we are dealing with a CPU that has AArch32, so the right isar_feature test is aa32_pan, not aa64_pan. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-3-peter.maydell@linaro.org --- target/arm/helper.c | 2 +- 1 file changed, 1 insertion(+), 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 @@ static void take_aarch32_exception(CPUARMState *env, int new_mode, env->elr_el[2] = env->regs[15]; } else { /* CPSR.PAN is normally preserved preserved unless... */ - if (cpu_isar_feature(aa64_pan, env_archcpu(env))) { + if (cpu_isar_feature(aa32_pan, env_archcpu(env))) { switch (new_el) { case 3: if (!arm_is_secure_below_el3(env)) { -- 2.20.1 Our current usage of the isar_feature feature tests almost always uses an _aa32_ test when the code path is known to be AArch32 specific and an _aa64_ test when the code path is known to be AArch64 specific. There is just one exception: in the vfp_set_fpscr helper we check aa64_fp16 to determine whether the FZ16 bit in the FP(S)CR exists, but this code is also used for AArch32. There are other places in future where we're likely to want a general "does this feature exist for either AArch32 or AArch64" check (typically where architecturally the feature exists for both CPU states if it exists at all, but the CPU might be AArch32-only or AArch64-only, and so only have one set of ID registers). Introduce a new category of isar_feature_* functions: isar_feature_any_foo() should be tested when what we want to know is "does this feature exist for either AArch32 or AArch64", and always returns the logical OR of isar_feature_aa32_foo() and isar_feature_aa64_foo(). Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-4-peter.maydell@linaro.org --- target/arm/cpu.h | 19 ++++++++++++++++++- target/arm/vfp_helper.c | 2 +- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ extern const uint64_t pred_esz_masks[4]; * Naming convention for isar_feature functions: * Functions which test 32-bit ID registers should have _aa32_ in * their name. Functions which test 64-bit ID registers should have - * _aa64_ in their name. + * _aa64_ in their name. These must only be used in code where we + * know for certain that the CPU has AArch32 or AArch64 respectively + * or where the correct answer for a CPU which doesn't implement that + * CPU state is "false" (eg when generating A32 or A64 code, if adding + * system registers that are specific to that CPU state, for "should + * we let this system register bit be set" tests where the 32-bit + * flavour of the register doesn't have the bit, and so on). + * Functions which simply ask "does this feature exist at all" have + * _any_ in their name, and always return the logical OR of the _aa64_ + * and the _aa32_ function. */ /* @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_bti(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, BT) != 0; } +/* + * Feature tests for "does this exist in either 32-bit or 64-bit?" + */ +static inline bool isar_feature_any_fp16(const ARMISARegisters *id) +{ + return isar_feature_aa64_fp16(id) || isar_feature_aa32_fp16_arith(id); +} + /* * Forward to the above feature tests given an ARMCPU pointer. */ diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/vfp_helper.c +++ b/target/arm/vfp_helper.c @@ -XXX,XX +XXX,XX @@ uint32_t vfp_get_fpscr(CPUARMState *env) void HELPER(vfp_set_fpscr)(CPUARMState *env, uint32_t val) { /* When ARMv8.2-FP16 is not supported, FZ16 is RES0. */ - if (!cpu_isar_feature(aa64_fp16, env_archcpu(env))) { + if (!cpu_isar_feature(any_fp16, env_archcpu(env))) { val &= ~FPCR_FZ16; } -- 2.20.1 Instead of open-coding "ARM_FEATURE_AARCH64 ? aa64_predinv: aa32_predinv", define and use an any_predinv isar_feature test function. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-5-peter.maydell@linaro.org --- target/arm/cpu.h | 5 +++++ target/arm/helper.c | 9 +-------- 2 files changed, 6 insertions(+), 8 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_any_fp16(const ARMISARegisters *id) return isar_feature_aa64_fp16(id) || isar_feature_aa32_fp16_arith(id); } +static inline bool isar_feature_any_predinv(const ARMISARegisters *id) +{ + return isar_feature_aa64_predinv(id) || isar_feature_aa32_predinv(id); +} + /* * Forward to the above feature tests given an ARMCPU pointer. */ 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 register_cp_regs_for_features(ARMCPU *cpu) #endif /*CONFIG_USER_ONLY*/ #endif - /* - * While all v8.0 cpus support aarch64, QEMU does have configurations - * that do not set ID_AA64ISAR1, e.g. user-only qemu-arm -cpu max, - * which will set ID_ISAR6. - */ - if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64) - ? cpu_isar_feature(aa64_predinv, cpu) - : cpu_isar_feature(aa32_predinv, cpu)) { + if (cpu_isar_feature(any_predinv, cpu)) { define_arm_cp_regs(cpu, predinv_reginfo); } -- 2.20.1 Pull the code that defines the various PMU registers out into its own function, matching the pattern we have already for the debug registers. Apart from one style fix to a multi-line comment, this is purely movement of code with no changes to it. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-6-peter.maydell@linaro.org --- target/arm/helper.c | 158 +++++++++++++++++++++++--------------------- 1 file changed, 82 insertions(+), 76 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 @@ static void define_debug_regs(ARMCPU *cpu) } } +static void define_pmu_regs(ARMCPU *cpu) +{ + /* + * v7 performance monitor control register: same implementor + * field as main ID register, and we implement four counters in + * addition to the cycle count register. + */ + unsigned int i, pmcrn = 4; + ARMCPRegInfo pmcr = { + .name = "PMCR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 0, + .access = PL0_RW, + .type = ARM_CP_IO | ARM_CP_ALIAS, + .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcr), + .accessfn = pmreg_access, .writefn = pmcr_write, + .raw_writefn = raw_write, + }; + ARMCPRegInfo pmcr64 = { + .name = "PMCR_EL0", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 0, + .access = PL0_RW, .accessfn = pmreg_access, + .type = ARM_CP_IO, + .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr), + .resetvalue = (cpu->midr & 0xff000000) | (pmcrn << PMCRN_SHIFT), + .writefn = pmcr_write, .raw_writefn = raw_write, + }; + define_one_arm_cp_reg(cpu, &pmcr); + define_one_arm_cp_reg(cpu, &pmcr64); + for (i = 0; i < pmcrn; i++) { + char *pmevcntr_name = g_strdup_printf("PMEVCNTR%d", i); + char *pmevcntr_el0_name = g_strdup_printf("PMEVCNTR%d_EL0", i); + char *pmevtyper_name = g_strdup_printf("PMEVTYPER%d", i); + char *pmevtyper_el0_name = g_strdup_printf("PMEVTYPER%d_EL0", i); + ARMCPRegInfo pmev_regs[] = { + { .name = pmevcntr_name, .cp = 15, .crn = 14, + .crm = 8 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, + .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, + .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, + .accessfn = pmreg_access }, + { .name = pmevcntr_el0_name, .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 8 | (3 & (i >> 3)), + .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, + .type = ARM_CP_IO, + .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, + .raw_readfn = pmevcntr_rawread, + .raw_writefn = pmevcntr_rawwrite }, + { .name = pmevtyper_name, .cp = 15, .crn = 14, + .crm = 12 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, + .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, + .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, + .accessfn = pmreg_access }, + { .name = pmevtyper_el0_name, .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 12 | (3 & (i >> 3)), + .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, + .type = ARM_CP_IO, + .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, + .raw_writefn = pmevtyper_rawwrite }, + REGINFO_SENTINEL + }; + define_arm_cp_regs(cpu, pmev_regs); + g_free(pmevcntr_name); + g_free(pmevcntr_el0_name); + g_free(pmevtyper_name); + g_free(pmevtyper_el0_name); + } + if (FIELD_EX32(cpu->id_dfr0, ID_DFR0, PERFMON) >= 4 && + FIELD_EX32(cpu->id_dfr0, ID_DFR0, PERFMON) != 0xf) { + ARMCPRegInfo v81_pmu_regs[] = { + { .name = "PMCEID2", .state = ARM_CP_STATE_AA32, + .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 4, + .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .resetvalue = extract64(cpu->pmceid0, 32, 32) }, + { .name = "PMCEID3", .state = ARM_CP_STATE_AA32, + .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 5, + .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .resetvalue = extract64(cpu->pmceid1, 32, 32) }, + REGINFO_SENTINEL + }; + define_arm_cp_regs(cpu, v81_pmu_regs); + } +} + /* We don't know until after realize whether there's a GICv3 * attached, and that is what registers the gicv3 sysregs. * So we have to fill in the GIC fields in ID_PFR/ID_PFR1_EL1/ID_AA64PFR0_EL1 @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) define_arm_cp_regs(cpu, pmovsset_cp_reginfo); } if (arm_feature(env, ARM_FEATURE_V7)) { - /* v7 performance monitor control register: same implementor - * field as main ID register, and we implement four counters in - * addition to the cycle count register. - */ - unsigned int i, pmcrn = 4; - ARMCPRegInfo pmcr = { - .name = "PMCR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 0, - .access = PL0_RW, - .type = ARM_CP_IO | ARM_CP_ALIAS, - .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcr), - .accessfn = pmreg_access, .writefn = pmcr_write, - .raw_writefn = raw_write, - }; - ARMCPRegInfo pmcr64 = { - .name = "PMCR_EL0", .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 0, - .access = PL0_RW, .accessfn = pmreg_access, - .type = ARM_CP_IO, - .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr), - .resetvalue = (cpu->midr & 0xff000000) | (pmcrn << PMCRN_SHIFT), - .writefn = pmcr_write, .raw_writefn = raw_write, - }; - define_one_arm_cp_reg(cpu, &pmcr); - define_one_arm_cp_reg(cpu, &pmcr64); - for (i = 0; i < pmcrn; i++) { - char *pmevcntr_name = g_strdup_printf("PMEVCNTR%d", i); - char *pmevcntr_el0_name = g_strdup_printf("PMEVCNTR%d_EL0", i); - char *pmevtyper_name = g_strdup_printf("PMEVTYPER%d", i); - char *pmevtyper_el0_name = g_strdup_printf("PMEVTYPER%d_EL0", i); - ARMCPRegInfo pmev_regs[] = { - { .name = pmevcntr_name, .cp = 15, .crn = 14, - .crm = 8 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, - .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, - .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, - .accessfn = pmreg_access }, - { .name = pmevcntr_el0_name, .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 8 | (3 & (i >> 3)), - .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, - .type = ARM_CP_IO, - .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, - .raw_readfn = pmevcntr_rawread, - .raw_writefn = pmevcntr_rawwrite }, - { .name = pmevtyper_name, .cp = 15, .crn = 14, - .crm = 12 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, - .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, - .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, - .accessfn = pmreg_access }, - { .name = pmevtyper_el0_name, .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 12 | (3 & (i >> 3)), - .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, - .type = ARM_CP_IO, - .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, - .raw_writefn = pmevtyper_rawwrite }, - REGINFO_SENTINEL - }; - define_arm_cp_regs(cpu, pmev_regs); - g_free(pmevcntr_name); - g_free(pmevcntr_el0_name); - g_free(pmevtyper_name); - g_free(pmevtyper_el0_name); - } ARMCPRegInfo clidr = { .name = "CLIDR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 1, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) define_one_arm_cp_reg(cpu, &clidr); define_arm_cp_regs(cpu, v7_cp_reginfo); define_debug_regs(cpu); + define_pmu_regs(cpu); } else { define_arm_cp_regs(cpu, not_v7_cp_reginfo); } - if (FIELD_EX32(cpu->id_dfr0, ID_DFR0, PERFMON) >= 4 && - FIELD_EX32(cpu->id_dfr0, ID_DFR0, PERFMON) != 0xf) { - ARMCPRegInfo v81_pmu_regs[] = { - { .name = "PMCEID2", .state = ARM_CP_STATE_AA32, - .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 4, - .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, - .resetvalue = extract64(cpu->pmceid0, 32, 32) }, - { .name = "PMCEID3", .state = ARM_CP_STATE_AA32, - .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 5, - .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, - .resetvalue = extract64(cpu->pmceid1, 32, 32) }, - REGINFO_SENTINEL - }; - define_arm_cp_regs(cpu, v81_pmu_regs); - } if (arm_feature(env, ARM_FEATURE_V8)) { /* AArch64 ID registers, which all have impdef reset values. * Note that within the ID register ranges the unused slots -- 2.20.1 Add FIELD() definitions for the ID_AA64DFR0_EL1 and use them where we currently have hard-coded bit values. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-7-peter.maydell@linaro.org --- target/arm/cpu.h | 10 ++++++++++ target/arm/cpu.c | 2 +- target/arm/helper.c | 6 +++--- 3 files changed, 14 insertions(+), 4 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ FIELD(ID_AA64MMFR2, BBM, 52, 4) FIELD(ID_AA64MMFR2, EVT, 56, 4) FIELD(ID_AA64MMFR2, E0PD, 60, 4) +FIELD(ID_AA64DFR0, DEBUGVER, 0, 4) +FIELD(ID_AA64DFR0, TRACEVER, 4, 4) +FIELD(ID_AA64DFR0, PMUVER, 8, 4) +FIELD(ID_AA64DFR0, BRPS, 12, 4) +FIELD(ID_AA64DFR0, WRPS, 20, 4) +FIELD(ID_AA64DFR0, CTX_CMPS, 28, 4) +FIELD(ID_AA64DFR0, PMSVER, 32, 4) +FIELD(ID_AA64DFR0, DOUBLELOCK, 36, 4) +FIELD(ID_AA64DFR0, TRACEFILT, 40, 4) + FIELD(ID_DFR0, COPDBG, 0, 4) FIELD(ID_DFR0, COPSDBG, 4, 4) FIELD(ID_DFR0, MMAPDBG, 8, 4) 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_realizefn(DeviceState *dev, Error **errp) cpu); #endif } else { - cpu->id_aa64dfr0 &= ~0xf00; + cpu->id_aa64dfr0 = FIELD_DP64(cpu->id_aa64dfr0, ID_AA64DFR0, PMUVER, 0); cpu->id_dfr0 &= ~(0xf << 24); cpu->pmceid0 = 0; cpu->pmceid1 = 0; 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 @@ static void define_debug_regs(ARMCPU *cpu) * check that if they both exist then they agree. */ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { - assert(extract32(cpu->id_aa64dfr0, 12, 4) == brps); - assert(extract32(cpu->id_aa64dfr0, 20, 4) == wrps); - assert(extract32(cpu->id_aa64dfr0, 28, 4) == ctx_cmps); + assert(FIELD_EX64(cpu->id_aa64dfr0, ID_AA64DFR0, BRPS) == brps); + assert(FIELD_EX64(cpu->id_aa64dfr0, ID_AA64DFR0, WRPS) == wrps); + assert(FIELD_EX64(cpu->id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) == ctx_cmps); } define_one_arm_cp_reg(cpu, &dbgdidr); -- 2.20.1 We already define FIELD macros for ID_DFR0, so use them in the one place where we're doing direct bit value manipulation. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-8-peter.maydell@linaro.org --- target/arm/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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_realizefn(DeviceState *dev, Error **errp) #endif } else { cpu->id_aa64dfr0 = FIELD_DP64(cpu->id_aa64dfr0, ID_AA64DFR0, PMUVER, 0); - cpu->id_dfr0 &= ~(0xf << 24); + cpu->id_dfr0 = FIELD_DP32(cpu->id_dfr0, ID_DFR0, PERFMON, 0); cpu->pmceid0 = 0; cpu->pmceid1 = 0; } -- 2.20.1 Instead of open-coding a check on the ID_DFR0 PerfMon ID register field, create a standardly-named isar_feature for "does AArch32 have a v8.1 PMUv3" and use it. This entails moving the id_dfr0 field into the ARMISARegisters struct. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-9-peter.maydell@linaro.org --- target/arm/cpu.h | 9 ++++++++- hw/intc/armv7m_nvic.c | 2 +- target/arm/cpu.c | 28 ++++++++++++++-------------- target/arm/cpu64.c | 6 +++--- target/arm/helper.c | 5 ++--- 5 files changed, 28 insertions(+), 22 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint32_t mvfr0; uint32_t mvfr1; uint32_t mvfr2; + uint32_t id_dfr0; uint64_t id_aa64isar0; uint64_t id_aa64isar1; uint64_t id_aa64pfr0; @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint32_t reset_sctlr; uint32_t id_pfr0; uint32_t id_pfr1; - uint32_t id_dfr0; uint64_t pmceid0; uint64_t pmceid1; uint32_t id_afr0; @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_ats1e1(const ARMISARegisters *id) return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) >= 2; } +static inline bool isar_feature_aa32_pmu_8_1(const ARMISARegisters *id) +{ + /* 0xf means "non-standard IMPDEF PMU" */ + return FIELD_EX32(id->id_dfr0, ID_DFR0, PERFMON) >= 4 && + FIELD_EX32(id->id_dfr0, ID_DFR0, PERFMON) != 0xf; +} + /* * 64-bit feature tests via id registers. */ 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 uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs) case 0xd44: /* PFR1. */ return cpu->id_pfr1; case 0xd48: /* DFR0. */ - return cpu->id_dfr0; + return cpu->isar.id_dfr0; case 0xd4c: /* AFR0. */ return cpu->id_afr0; case 0xd50: /* MMFR0. */ 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_realizefn(DeviceState *dev, Error **errp) #endif } else { cpu->id_aa64dfr0 = FIELD_DP64(cpu->id_aa64dfr0, ID_AA64DFR0, PMUVER, 0); - cpu->id_dfr0 = FIELD_DP32(cpu->id_dfr0, ID_DFR0, PERFMON, 0); + cpu->isar.id_dfr0 = FIELD_DP32(cpu->isar.id_dfr0, ID_DFR0, PERFMON, 0); cpu->pmceid0 = 0; cpu->pmceid1 = 0; } @@ -XXX,XX +XXX,XX @@ static void arm1136_r2_initfn(Object *obj) cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; - cpu->id_dfr0 = 0x2; + cpu->isar.id_dfr0 = 0x2; cpu->id_afr0 = 0x3; cpu->id_mmfr0 = 0x01130003; cpu->id_mmfr1 = 0x10030302; @@ -XXX,XX +XXX,XX @@ static void arm1136_initfn(Object *obj) cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; - cpu->id_dfr0 = 0x2; + cpu->isar.id_dfr0 = 0x2; cpu->id_afr0 = 0x3; cpu->id_mmfr0 = 0x01130003; cpu->id_mmfr1 = 0x10030302; @@ -XXX,XX +XXX,XX @@ static void arm1176_initfn(Object *obj) cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x11; - cpu->id_dfr0 = 0x33; + cpu->isar.id_dfr0 = 0x33; cpu->id_afr0 = 0; cpu->id_mmfr0 = 0x01130003; cpu->id_mmfr1 = 0x10030302; @@ -XXX,XX +XXX,XX @@ static void arm11mpcore_initfn(Object *obj) cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */ cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; - cpu->id_dfr0 = 0; + cpu->isar.id_dfr0 = 0; cpu->id_afr0 = 0x2; cpu->id_mmfr0 = 0x01100103; cpu->id_mmfr1 = 0x10020302; @@ -XXX,XX +XXX,XX @@ static void cortex_m3_initfn(Object *obj) cpu->pmsav7_dregion = 8; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; - cpu->id_dfr0 = 0x00100000; + cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00000030; cpu->id_mmfr1 = 0x00000000; @@ -XXX,XX +XXX,XX @@ static void cortex_m4_initfn(Object *obj) cpu->isar.mvfr2 = 0x00000000; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; - cpu->id_dfr0 = 0x00100000; + cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00000030; cpu->id_mmfr1 = 0x00000000; @@ -XXX,XX +XXX,XX @@ static void cortex_m7_initfn(Object *obj) cpu->isar.mvfr2 = 0x00000040; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; - cpu->id_dfr0 = 0x00100000; + cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00100030; cpu->id_mmfr1 = 0x00000000; @@ -XXX,XX +XXX,XX @@ static void cortex_m33_initfn(Object *obj) cpu->isar.mvfr2 = 0x00000040; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000210; - cpu->id_dfr0 = 0x00200000; + cpu->isar.id_dfr0 = 0x00200000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00101F40; cpu->id_mmfr1 = 0x00000000; @@ -XXX,XX +XXX,XX @@ static void cortex_r5_initfn(Object *obj) cpu->midr = 0x411fc153; /* r1p3 */ cpu->id_pfr0 = 0x0131; cpu->id_pfr1 = 0x001; - cpu->id_dfr0 = 0x010400; + cpu->isar.id_dfr0 = 0x010400; cpu->id_afr0 = 0x0; cpu->id_mmfr0 = 0x0210030; cpu->id_mmfr1 = 0x00000000; @@ -XXX,XX +XXX,XX @@ static void cortex_a8_initfn(Object *obj) cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x1031; cpu->id_pfr1 = 0x11; - cpu->id_dfr0 = 0x400; + cpu->isar.id_dfr0 = 0x400; cpu->id_afr0 = 0; cpu->id_mmfr0 = 0x31100003; cpu->id_mmfr1 = 0x20000000; @@ -XXX,XX +XXX,XX @@ static void cortex_a9_initfn(Object *obj) cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x1031; cpu->id_pfr1 = 0x11; - cpu->id_dfr0 = 0x000; + cpu->isar.id_dfr0 = 0x000; cpu->id_afr0 = 0; cpu->id_mmfr0 = 0x00100103; cpu->id_mmfr1 = 0x20000000; @@ -XXX,XX +XXX,XX @@ static void cortex_a7_initfn(Object *obj) cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x00001131; cpu->id_pfr1 = 0x00011011; - cpu->id_dfr0 = 0x02010555; + cpu->isar.id_dfr0 = 0x02010555; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x10101105; cpu->id_mmfr1 = 0x40000000; @@ -XXX,XX +XXX,XX @@ static void cortex_a15_initfn(Object *obj) cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x00001131; cpu->id_pfr1 = 0x00011011; - cpu->id_dfr0 = 0x02010555; + cpu->isar.id_dfr0 = 0x02010555; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x10201105; cpu->id_mmfr1 = 0x20000000; diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_a57_initfn(Object *obj) cpu->reset_sctlr = 0x00c50838; cpu->id_pfr0 = 0x00000131; cpu->id_pfr1 = 0x00011011; - cpu->id_dfr0 = 0x03010066; + cpu->isar.id_dfr0 = 0x03010066; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x10101105; cpu->id_mmfr1 = 0x40000000; @@ -XXX,XX +XXX,XX @@ static void aarch64_a53_initfn(Object *obj) cpu->reset_sctlr = 0x00c50838; cpu->id_pfr0 = 0x00000131; cpu->id_pfr1 = 0x00011011; - cpu->id_dfr0 = 0x03010066; + cpu->isar.id_dfr0 = 0x03010066; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x10101105; cpu->id_mmfr1 = 0x40000000; @@ -XXX,XX +XXX,XX @@ static void aarch64_a72_initfn(Object *obj) cpu->reset_sctlr = 0x00c50838; cpu->id_pfr0 = 0x00000131; cpu->id_pfr1 = 0x00011011; - cpu->id_dfr0 = 0x03010066; + cpu->isar.id_dfr0 = 0x03010066; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x10201105; cpu->id_mmfr1 = 0x40000000; 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 @@ static void define_pmu_regs(ARMCPU *cpu) g_free(pmevtyper_name); g_free(pmevtyper_el0_name); } - if (FIELD_EX32(cpu->id_dfr0, ID_DFR0, PERFMON) >= 4 && - FIELD_EX32(cpu->id_dfr0, ID_DFR0, PERFMON) != 0xf) { + if (cpu_isar_feature(aa32_pmu_8_1, cpu)) { ARMCPRegInfo v81_pmu_regs[] = { { .name = "PMCEID2", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 4, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 2, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa32_tid3, - .resetvalue = cpu->id_dfr0 }, + .resetvalue = cpu->isar.id_dfr0 }, { .name = "ID_AFR0", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 3, .access = PL1_R, .type = ARM_CP_CONST, -- 2.20.1 Add the 64-bit version of the "is this a v8.1 PMUv3?" ID register check function, and the _any_ version that checks for either AArch32 or AArch64 support. We'll use this in a later commit. We don't (yet) do any isar_feature checks on ID_AA64DFR1_EL1, but we move id_aa64dfr1 into the ARMISARegisters struct with id_aa64dfr0, for consistency. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-10-peter.maydell@linaro.org --- target/arm/cpu.h | 15 +++++++++++++-- target/arm/cpu.c | 3 ++- target/arm/cpu64.c | 6 +++--- target/arm/helper.c | 12 +++++++----- 4 files changed, 25 insertions(+), 11 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint64_t id_aa64mmfr0; uint64_t id_aa64mmfr1; uint64_t id_aa64mmfr2; + uint64_t id_aa64dfr0; + uint64_t id_aa64dfr1; } isar; uint32_t midr; uint32_t revidr; @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint32_t id_mmfr2; uint32_t id_mmfr3; uint32_t id_mmfr4; - uint64_t id_aa64dfr0; - uint64_t id_aa64dfr1; uint64_t id_aa64afr0; uint64_t id_aa64afr1; uint32_t dbgdidr; @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_bti(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, BT) != 0; } +static inline bool isar_feature_aa64_pmu_8_1(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) >= 4 && + FIELD_EX64(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) != 0xf; +} + /* * Feature tests for "does this exist in either 32-bit or 64-bit?" */ @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_any_predinv(const ARMISARegisters *id) return isar_feature_aa64_predinv(id) || isar_feature_aa32_predinv(id); } +static inline bool isar_feature_any_pmu_8_1(const ARMISARegisters *id) +{ + return isar_feature_aa64_pmu_8_1(id) || isar_feature_aa32_pmu_8_1(id); +} + /* * Forward to the above feature tests given an ARMCPU pointer. */ 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_realizefn(DeviceState *dev, Error **errp) cpu); #endif } else { - cpu->id_aa64dfr0 = FIELD_DP64(cpu->id_aa64dfr0, ID_AA64DFR0, PMUVER, 0); + cpu->isar.id_aa64dfr0 = + FIELD_DP64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, PMUVER, 0); cpu->isar.id_dfr0 = FIELD_DP32(cpu->isar.id_dfr0, ID_DFR0, PERFMON, 0); cpu->pmceid0 = 0; cpu->pmceid1 = 0; diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_a57_initfn(Object *obj) cpu->isar.id_isar5 = 0x00011121; cpu->isar.id_isar6 = 0; cpu->isar.id_aa64pfr0 = 0x00002222; - cpu->id_aa64dfr0 = 0x10305106; + cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64isar0 = 0x00011120; cpu->isar.id_aa64mmfr0 = 0x00001124; cpu->dbgdidr = 0x3516d000; @@ -XXX,XX +XXX,XX @@ static void aarch64_a53_initfn(Object *obj) cpu->isar.id_isar5 = 0x00011121; cpu->isar.id_isar6 = 0; cpu->isar.id_aa64pfr0 = 0x00002222; - cpu->id_aa64dfr0 = 0x10305106; + cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64isar0 = 0x00011120; cpu->isar.id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */ cpu->dbgdidr = 0x3516d000; @@ -XXX,XX +XXX,XX @@ static void aarch64_a72_initfn(Object *obj) cpu->isar.id_isar4 = 0x00011142; cpu->isar.id_isar5 = 0x00011121; cpu->isar.id_aa64pfr0 = 0x00002222; - cpu->id_aa64dfr0 = 0x10305106; + cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64isar0 = 0x00011120; cpu->isar.id_aa64mmfr0 = 0x00001124; cpu->dbgdidr = 0x3516d000; 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 @@ #include "hw/semihosting/semihost.h" #include "sysemu/cpus.h" #include "sysemu/kvm.h" +#include "sysemu/tcg.h" #include "qemu/range.h" #include "qapi/qapi-commands-machine-target.h" #include "qapi/error.h" @@ -XXX,XX +XXX,XX @@ static void define_debug_regs(ARMCPU *cpu) * check that if they both exist then they agree. */ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { - assert(FIELD_EX64(cpu->id_aa64dfr0, ID_AA64DFR0, BRPS) == brps); - assert(FIELD_EX64(cpu->id_aa64dfr0, ID_AA64DFR0, WRPS) == wrps); - assert(FIELD_EX64(cpu->id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) == ctx_cmps); + assert(FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, BRPS) == brps); + assert(FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, WRPS) == wrps); + assert(FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) + == ctx_cmps); } define_one_arm_cp_reg(cpu, &dbgdidr); @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 0, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, - .resetvalue = cpu->id_aa64dfr0 }, + .resetvalue = cpu->isar.id_aa64dfr0 }, { .name = "ID_AA64DFR1_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 1, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, - .resetvalue = cpu->id_aa64dfr1 }, + .resetvalue = cpu->isar.id_aa64dfr1 }, { .name = "ID_AA64DFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 2, .access = PL1_R, .type = ARM_CP_CONST, -- 2.20.1 The AArch32 DBGDIDR defines properties like the number of breakpoints, watchpoints and context-matching comparators. On an AArch64 CPU, the register may not even exist if AArch32 is not supported at EL1. Currently we hard-code use of DBGDIDR to identify the number of breakpoints etc; this works for all our TCG CPUs, but will break if we ever add an AArch64-only CPU. We also have an assert() that the AArch32 and AArch64 registers match, which currently works only by luck for KVM because we don't populate either of these ID registers from the KVM vCPU and so they are both zero. Clean this up so we have functions for finding the number of breakpoints, watchpoints and context comparators which look in the appropriate ID register. This allows us to drop the "check that AArch64 and AArch32 agree on the number of breakpoints etc" asserts: * we no longer look at the AArch32 versions unless that's the right place to be looking * it's valid to have a CPU (eg AArch64-only) where they don't match * we shouldn't have been asserting the validity of ID registers in a codepath used with KVM anyway Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-11-peter.maydell@linaro.org --- target/arm/cpu.h | 7 +++++++ target/arm/internals.h | 42 +++++++++++++++++++++++++++++++++++++++ target/arm/debug_helper.c | 6 +++--- target/arm/helper.c | 21 +++++--------------- 4 files changed, 57 insertions(+), 19 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ FIELD(ID_DFR0, MPROFDBG, 20, 4) FIELD(ID_DFR0, PERFMON, 24, 4) FIELD(ID_DFR0, TRACEFILT, 28, 4) +FIELD(DBGDIDR, SE_IMP, 12, 1) +FIELD(DBGDIDR, NSUHD_IMP, 14, 1) +FIELD(DBGDIDR, VERSION, 16, 4) +FIELD(DBGDIDR, CTX_CMPS, 20, 4) +FIELD(DBGDIDR, BRPS, 24, 4) +FIELD(DBGDIDR, WRPS, 28, 4) + FIELD(MVFR0, SIMDREG, 0, 4) FIELD(MVFR0, FPSP, 4, 4) FIELD(MVFR0, FPDP, 8, 4) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline uint32_t arm_debug_exception_fsr(CPUARMState *env) } } +/** + * arm_num_brps: Return number of implemented breakpoints. + * Note that the ID register BRPS field is "number of bps - 1", + * and we return the actual number of breakpoints. + */ +static inline int arm_num_brps(ARMCPU *cpu) +{ + if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { + return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, BRPS) + 1; + } else { + return FIELD_EX32(cpu->dbgdidr, DBGDIDR, BRPS) + 1; + } +} + +/** + * arm_num_wrps: Return number of implemented watchpoints. + * Note that the ID register WRPS field is "number of wps - 1", + * and we return the actual number of watchpoints. + */ +static inline int arm_num_wrps(ARMCPU *cpu) +{ + if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { + return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, WRPS) + 1; + } else { + return FIELD_EX32(cpu->dbgdidr, DBGDIDR, WRPS) + 1; + } +} + +/** + * arm_num_ctx_cmps: Return number of implemented context comparators. + * Note that the ID register CTX_CMPS field is "number of cmps - 1", + * and we return the actual number of comparators. + */ +static inline int arm_num_ctx_cmps(ARMCPU *cpu) +{ + if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { + return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) + 1; + } else { + return FIELD_EX32(cpu->dbgdidr, DBGDIDR, CTX_CMPS) + 1; + } +} + /* Note make_memop_idx reserves 4 bits for mmu_idx, and MO_BSWAP is bit 3. * Thus a TCGMemOpIdx, without any MO_ALIGN bits, fits in 8 bits. */ diff --git a/target/arm/debug_helper.c b/target/arm/debug_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/debug_helper.c +++ b/target/arm/debug_helper.c @@ -XXX,XX +XXX,XX @@ static bool linked_bp_matches(ARMCPU *cpu, int lbn) { CPUARMState *env = &cpu->env; uint64_t bcr = env->cp15.dbgbcr[lbn]; - int brps = extract32(cpu->dbgdidr, 24, 4); - int ctx_cmps = extract32(cpu->dbgdidr, 20, 4); + int brps = arm_num_brps(cpu); + int ctx_cmps = arm_num_ctx_cmps(cpu); int bt; uint32_t contextidr; uint64_t hcr_el2; @@ -XXX,XX +XXX,XX @@ static bool linked_bp_matches(ARMCPU *cpu, int lbn) * case DBGWCR<n>_EL1.LBN must indicate that breakpoint). * We choose the former. */ - if (lbn > brps || lbn < (brps - ctx_cmps)) { + if (lbn >= brps || lbn < (brps - ctx_cmps)) { return false; } 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 @@ static void define_debug_regs(ARMCPU *cpu) }; /* Note that all these register fields hold "number of Xs minus 1". */ - brps = extract32(cpu->dbgdidr, 24, 4); - wrps = extract32(cpu->dbgdidr, 28, 4); - ctx_cmps = extract32(cpu->dbgdidr, 20, 4); + brps = arm_num_brps(cpu); + wrps = arm_num_wrps(cpu); + ctx_cmps = arm_num_ctx_cmps(cpu); assert(ctx_cmps <= brps); - /* The DBGDIDR and ID_AA64DFR0_EL1 define various properties - * of the debug registers such as number of breakpoints; - * check that if they both exist then they agree. - */ - if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { - assert(FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, BRPS) == brps); - assert(FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, WRPS) == wrps); - assert(FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) - == ctx_cmps); - } - define_one_arm_cp_reg(cpu, &dbgdidr); define_arm_cp_regs(cpu, debug_cp_reginfo); @@ -XXX,XX +XXX,XX @@ static void define_debug_regs(ARMCPU *cpu) define_arm_cp_regs(cpu, debug_lpae_cp_reginfo); } - for (i = 0; i < brps + 1; i++) { + for (i = 0; i < brps; i++) { ARMCPRegInfo dbgregs[] = { { .name = "DBGBVR", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 4, @@ -XXX,XX +XXX,XX @@ static void define_debug_regs(ARMCPU *cpu) define_arm_cp_regs(cpu, dbgregs); } - for (i = 0; i < wrps + 1; i++) { + for (i = 0; i < wrps; i++) { ARMCPRegInfo dbgregs[] = { { .name = "DBGWVR", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 6, -- 2.20.1 We're going to want to read the DBGDIDR register from KVM in a subsequent commit, which means it needs to be in the ARMISARegisters sub-struct. Move it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-12-peter.maydell@linaro.org --- target/arm/cpu.h | 2 +- target/arm/internals.h | 6 +++--- target/arm/cpu.c | 8 ++++---- target/arm/cpu64.c | 6 +++--- target/arm/helper.c | 2 +- 5 files changed, 12 insertions(+), 12 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint32_t mvfr1; uint32_t mvfr2; uint32_t id_dfr0; + uint32_t dbgdidr; uint64_t id_aa64isar0; uint64_t id_aa64isar1; uint64_t id_aa64pfr0; @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint32_t id_mmfr4; uint64_t id_aa64afr0; uint64_t id_aa64afr1; - uint32_t dbgdidr; uint32_t clidr; uint64_t mp_affinity; /* MP ID without feature bits */ /* The elements of this array are the CCSIDR values for each cache, diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline int arm_num_brps(ARMCPU *cpu) if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, BRPS) + 1; } else { - return FIELD_EX32(cpu->dbgdidr, DBGDIDR, BRPS) + 1; + return FIELD_EX32(cpu->isar.dbgdidr, DBGDIDR, BRPS) + 1; } } @@ -XXX,XX +XXX,XX @@ static inline int arm_num_wrps(ARMCPU *cpu) if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, WRPS) + 1; } else { - return FIELD_EX32(cpu->dbgdidr, DBGDIDR, WRPS) + 1; + return FIELD_EX32(cpu->isar.dbgdidr, DBGDIDR, WRPS) + 1; } } @@ -XXX,XX +XXX,XX @@ static inline int arm_num_ctx_cmps(ARMCPU *cpu) if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { return FIELD_EX64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, CTX_CMPS) + 1; } else { - return FIELD_EX32(cpu->dbgdidr, DBGDIDR, CTX_CMPS) + 1; + return FIELD_EX32(cpu->isar.dbgdidr, DBGDIDR, CTX_CMPS) + 1; } } 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 cortex_a8_initfn(Object *obj) cpu->isar.id_isar2 = 0x21232031; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x00111142; - cpu->dbgdidr = 0x15141000; + cpu->isar.dbgdidr = 0x15141000; cpu->clidr = (1 << 27) | (2 << 24) | 3; cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */ cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */ @@ -XXX,XX +XXX,XX @@ static void cortex_a9_initfn(Object *obj) cpu->isar.id_isar2 = 0x21232041; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x00111142; - cpu->dbgdidr = 0x35141000; + cpu->isar.dbgdidr = 0x35141000; cpu->clidr = (1 << 27) | (1 << 24) | 3; cpu->ccsidr[0] = 0xe00fe019; /* 16k L1 dcache. */ cpu->ccsidr[1] = 0x200fe019; /* 16k L1 icache. */ @@ -XXX,XX +XXX,XX @@ static void cortex_a7_initfn(Object *obj) cpu->isar.id_isar2 = 0x21232041; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x10011142; - cpu->dbgdidr = 0x3515f005; + cpu->isar.dbgdidr = 0x3515f005; cpu->clidr = 0x0a200023; cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */ cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */ @@ -XXX,XX +XXX,XX @@ static void cortex_a15_initfn(Object *obj) cpu->isar.id_isar2 = 0x21232041; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x10011142; - cpu->dbgdidr = 0x3515f021; + cpu->isar.dbgdidr = 0x3515f021; cpu->clidr = 0x0a200023; cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */ cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */ diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_a57_initfn(Object *obj) cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64isar0 = 0x00011120; cpu->isar.id_aa64mmfr0 = 0x00001124; - cpu->dbgdidr = 0x3516d000; + cpu->isar.dbgdidr = 0x3516d000; cpu->clidr = 0x0a200023; cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */ cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */ @@ -XXX,XX +XXX,XX @@ static void aarch64_a53_initfn(Object *obj) cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64isar0 = 0x00011120; cpu->isar.id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */ - cpu->dbgdidr = 0x3516d000; + cpu->isar.dbgdidr = 0x3516d000; cpu->clidr = 0x0a200023; cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */ cpu->ccsidr[1] = 0x201fe00a; /* 32KB L1 icache */ @@ -XXX,XX +XXX,XX @@ static void aarch64_a72_initfn(Object *obj) cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64isar0 = 0x00011120; cpu->isar.id_aa64mmfr0 = 0x00001124; - cpu->dbgdidr = 0x3516d000; + cpu->isar.dbgdidr = 0x3516d000; cpu->clidr = 0x0a200023; cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */ cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */ 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 @@ static void define_debug_regs(ARMCPU *cpu) ARMCPRegInfo dbgdidr = { .name = "DBGDIDR", .cp = 14, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 0, .access = PL0_R, .accessfn = access_tda, - .type = ARM_CP_CONST, .resetvalue = cpu->dbgdidr, + .type = ARM_CP_CONST, .resetvalue = cpu->isar.dbgdidr, }; /* Note that all these register fields hold "number of Xs minus 1". */ -- 2.20.1 Now we have isar_feature test functions that look at fields in the ID_AA64DFR0_EL1 and ID_DFR0 ID registers, add the code that reads these register values from KVM so that the checks behave correctly when we're using KVM. No isar_feature function tests ID_AA64DFR1_EL1 or DBGDIDR yet, but we add it to maintain the invariant that every field in the ARMISARegisters struct is populated for a KVM CPU and can be relied on. This requirement isn't actually written down yet, so add a note to the relevant comment. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-13-peter.maydell@linaro.org --- target/arm/cpu.h | 5 +++++ target/arm/kvm32.c | 8 ++++++++ target/arm/kvm64.c | 36 ++++++++++++++++++++++++++++++++++++ 3 files changed, 49 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ struct ARMCPU { * prefix means a constant register. * Some of these registers are split out into a substructure that * is shared with the translators to control the ISA. + * + * Note that if you add an ID register to the ARMISARegisters struct + * you need to also update the 32-bit and 64-bit versions of the + * kvm_arm_get_host_cpu_features() function to correctly populate the + * field by reading the value from the KVM vCPU. */ struct ARMISARegisters { uint32_t id_isar0; 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 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) ahcf->isar.id_isar6 = 0; } + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_dfr0, + ARM_CP15_REG32(0, 0, 1, 2)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.mvfr0, KVM_REG_ARM | KVM_REG_SIZE_U32 | KVM_REG_ARM_VFP | KVM_REG_ARM_VFP_MVFR0); @@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) * Fortunately there is not yet anything in there that affects migration. */ + /* + * There is no way to read DBGDIDR, because currently 32-bit KVM + * doesn't implement debug at all. Leave it at zero. + */ + kvm_arm_destroy_scratch_host_vcpu(fdarray); if (err < 0) { 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 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) } else { err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64pfr1, ARM64_SYS_REG(3, 0, 0, 4, 1)); + err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64dfr0, + ARM64_SYS_REG(3, 0, 0, 5, 0)); + err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64dfr1, + ARM64_SYS_REG(3, 0, 0, 5, 1)); err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64isar0, ARM64_SYS_REG(3, 0, 0, 6, 0)); err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64isar1, @@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) * than skipping the reads and leaving 0, as we must avoid * considering the values in every case. */ + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_dfr0, + ARM64_SYS_REG(3, 0, 0, 1, 2)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar0, ARM64_SYS_REG(3, 0, 0, 2, 0)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar1, @@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) ARM64_SYS_REG(3, 0, 0, 3, 1)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.mvfr2, ARM64_SYS_REG(3, 0, 0, 3, 2)); + + /* + * DBGDIDR is a bit complicated because the kernel doesn't + * provide an accessor for it in 64-bit mode, which is what this + * scratch VM is in, and there's no architected "64-bit sysreg + * which reads the same as the 32-bit register" the way there is + * for other ID registers. Instead we synthesize a value from the + * AArch64 ID_AA64DFR0, the same way the kernel code in + * arch/arm64/kvm/sys_regs.c:trap_dbgidr() does. + * We only do this if the CPU supports AArch32 at EL1. + */ + if (FIELD_EX32(ahcf->isar.id_aa64pfr0, ID_AA64PFR0, EL1) >= 2) { + int wrps = FIELD_EX64(ahcf->isar.id_aa64dfr0, ID_AA64DFR0, WRPS); + int brps = FIELD_EX64(ahcf->isar.id_aa64dfr0, ID_AA64DFR0, BRPS); + int ctx_cmps = + FIELD_EX64(ahcf->isar.id_aa64dfr0, ID_AA64DFR0, CTX_CMPS); + int version = 6; /* ARMv8 debug architecture */ + bool has_el3 = + !!FIELD_EX32(ahcf->isar.id_aa64pfr0, ID_AA64PFR0, EL3); + uint32_t dbgdidr = 0; + + dbgdidr = FIELD_DP32(dbgdidr, DBGDIDR, WRPS, wrps); + dbgdidr = FIELD_DP32(dbgdidr, DBGDIDR, BRPS, brps); + dbgdidr = FIELD_DP32(dbgdidr, DBGDIDR, CTX_CMPS, ctx_cmps); + dbgdidr = FIELD_DP32(dbgdidr, DBGDIDR, VERSION, version); + dbgdidr = FIELD_DP32(dbgdidr, DBGDIDR, NSUHD_IMP, has_el3); + dbgdidr = FIELD_DP32(dbgdidr, DBGDIDR, SE_IMP, has_el3); + dbgdidr |= (1 << 15); /* RES1 bit */ + ahcf->isar.dbgdidr = dbgdidr; + } } sve_supported = ioctl(fdarray[0], KVM_CHECK_EXTENSION, KVM_CAP_ARM_SVE) > 0; -- 2.20.1 The ARMv8.1-PMU extension requires: * the evtCount field in PMETYPER<n>_EL0 is 16 bits, not 10 * MDCR_EL2.HPMD allows event counting to be disabled at EL2 * two new required events, STALL_FRONTEND and STALL_BACKEND * ID register bits in ID_AA64DFR0_EL1 and ID_DFR0 We already implement the 16-bit evtCount field and the HPMD bit, so all that is missing is the two new events: STALL_FRONTEND "counts every cycle counted by the CPU_CYCLES event on which no operation was issued because there are no operations available to issue to this PE from the frontend" STALL_BACKEND "counts every cycle counted by the CPU_CYCLES event on which no operation was issued because the backend is unable to accept any available operations from the frontend" QEMU never stalls in this sense, so our implementation is trivial: always return a zero count. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-14-peter.maydell@linaro.org --- target/arm/helper.c | 32 ++++++++++++++++++++++++++++++-- 1 file changed, 30 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 @@ static int64_t instructions_ns_per(uint64_t icount) } #endif +static bool pmu_8_1_events_supported(CPUARMState *env) +{ + /* For events which are supported in any v8.1 PMU */ + return cpu_isar_feature(any_pmu_8_1, env_archcpu(env)); +} + +static uint64_t zero_event_get_count(CPUARMState *env) +{ + /* For events which on QEMU never fire, so their count is always zero */ + return 0; +} + +static int64_t zero_event_ns_per(uint64_t cycles) +{ + /* An event which never fires can never overflow */ + return -1; +} + static const pm_event pm_events[] = { { .number = 0x000, /* SW_INCR */ .supported = event_always_supported, @@ -XXX,XX +XXX,XX @@ static const pm_event pm_events[] = { .supported = event_always_supported, .get_count = cycles_get_count, .ns_per_count = cycles_ns_per, - } + }, #endif + { .number = 0x023, /* STALL_FRONTEND */ + .supported = pmu_8_1_events_supported, + .get_count = zero_event_get_count, + .ns_per_count = zero_event_ns_per, + }, + { .number = 0x024, /* STALL_BACKEND */ + .supported = pmu_8_1_events_supported, + .get_count = zero_event_get_count, + .ns_per_count = zero_event_ns_per, + }, }; /* @@ -XXX,XX +XXX,XX @@ static const pm_event pm_events[] = { * should first be updated to something sparse instead of the current * supported_event_map[] array. */ -#define MAX_EVENT_ID 0x11 +#define MAX_EVENT_ID 0x24 #define UNSUPPORTED_EVENT UINT16_MAX static uint16_t supported_event_map[MAX_EVENT_ID + 1]; -- 2.20.1 The ARMv8.4-PMU extension adds: * one new required event, STALL * one new system register PMMIR_EL1 (There are also some more L1-cache related events, but since we don't implement any cache we don't provide these, in the same way we don't provide the base-PMUv3 cache events.) The STALL event "counts every attributable cycle on which no attributable instruction or operation was sent for execution on this PE". QEMU doesn't stall in this sense, so this is another always-reads-zero event. The PMMIR_EL1 register is a read-only register providing implementation-specific information about the PMU; currently it has only one field, SLOTS, which defines behaviour of the STALL_SLOT PMU event. Since QEMU doesn't implement the STALL_SLOT event, we can validly make the register read zero. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-15-peter.maydell@linaro.org --- target/arm/cpu.h | 18 ++++++++++++++++++ target/arm/helper.c | 22 +++++++++++++++++++++- 2 files changed, 39 insertions(+), 1 deletion(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_pmu_8_1(const ARMISARegisters *id) FIELD_EX32(id->id_dfr0, ID_DFR0, PERFMON) != 0xf; } +static inline bool isar_feature_aa32_pmu_8_4(const ARMISARegisters *id) +{ + /* 0xf means "non-standard IMPDEF PMU" */ + return FIELD_EX32(id->id_dfr0, ID_DFR0, PERFMON) >= 5 && + FIELD_EX32(id->id_dfr0, ID_DFR0, PERFMON) != 0xf; +} + /* * 64-bit feature tests via id registers. */ @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_pmu_8_1(const ARMISARegisters *id) FIELD_EX64(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) != 0xf; } +static inline bool isar_feature_aa64_pmu_8_4(const ARMISARegisters *id) +{ + return FIELD_EX32(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) >= 5 && + FIELD_EX32(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) != 0xf; +} + /* * Feature tests for "does this exist in either 32-bit or 64-bit?" */ @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_any_pmu_8_1(const ARMISARegisters *id) return isar_feature_aa64_pmu_8_1(id) || isar_feature_aa32_pmu_8_1(id); } +static inline bool isar_feature_any_pmu_8_4(const ARMISARegisters *id) +{ + return isar_feature_aa64_pmu_8_4(id) || isar_feature_aa32_pmu_8_4(id); +} + /* * Forward to the above feature tests given an ARMCPU pointer. */ 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 @@ static bool pmu_8_1_events_supported(CPUARMState *env) return cpu_isar_feature(any_pmu_8_1, env_archcpu(env)); } +static bool pmu_8_4_events_supported(CPUARMState *env) +{ + /* For events which are supported in any v8.1 PMU */ + return cpu_isar_feature(any_pmu_8_4, env_archcpu(env)); +} + static uint64_t zero_event_get_count(CPUARMState *env) { /* For events which on QEMU never fire, so their count is always zero */ @@ -XXX,XX +XXX,XX @@ static const pm_event pm_events[] = { .get_count = zero_event_get_count, .ns_per_count = zero_event_ns_per, }, + { .number = 0x03c, /* STALL */ + .supported = pmu_8_4_events_supported, + .get_count = zero_event_get_count, + .ns_per_count = zero_event_ns_per, + }, }; /* @@ -XXX,XX +XXX,XX @@ static const pm_event pm_events[] = { * should first be updated to something sparse instead of the current * supported_event_map[] array. */ -#define MAX_EVENT_ID 0x24 +#define MAX_EVENT_ID 0x3c #define UNSUPPORTED_EVENT UINT16_MAX static uint16_t supported_event_map[MAX_EVENT_ID + 1]; @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) }; define_arm_cp_regs(cpu, v81_pmu_regs); } + if (cpu_isar_feature(any_pmu_8_4, cpu)) { + static const ARMCPRegInfo v84_pmmir = { + .name = "PMMIR_EL1", .state = ARM_CP_STATE_BOTH, + .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 6, + .access = PL1_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .resetvalue = 0 + }; + define_one_arm_cp_reg(cpu, &v84_pmmir); + } } /* We don't know until after realize whether there's a GICv3 -- 2.20.1 Set the ID register bits to provide ARMv8.4-PMU (and implicitly also ARMv8.1-PMU) in the 'max' CPU. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-16-peter.maydell@linaro.org --- target/arm/cpu64.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */ cpu->id_mmfr3 = u; + u = cpu->isar.id_aa64dfr0; + u = FIELD_DP64(u, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */ + cpu->isar.id_aa64dfr0 = u; + + u = cpu->isar.id_dfr0; + u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */ + cpu->isar.id_dfr0 = u; + /* * FIXME: We do not yet support ARMv8.2-fp16 for AArch32 yet, * so do not set MVFR1.FPHP. Strictly speaking this is not legal, -- 2.20.1 The PMCR_EL0.DP bit is bit 5, which is 0x20, not 0x10. 0x10 is 'X'. Correct our #define of PMCRDP and add the missing PMCRX. We do have the correct behaviour for handling the DP bit being set, so this fixes a guest-visible bug. Fixes: 033614c47de Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-17-peter.maydell@linaro.org --- target/arm/helper.c | 3 ++- 1 file changed, 2 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 @@ static const ARMCPRegInfo v6_cp_reginfo[] = { #define PMCRN_MASK 0xf800 #define PMCRN_SHIFT 11 #define PMCRLC 0x40 -#define PMCRDP 0x10 +#define PMCRDP 0x20 +#define PMCRX 0x10 #define PMCRD 0x8 #define PMCRC 0x4 #define PMCRP 0x2 -- 2.20.1 The LC bit in the PMCR_EL0 register is supposed to be: * read/write * RES1 on an AArch64-only implementation * an architecturally UNKNOWN value on reset (and use of LC==0 by software is deprecated). We were implementing it incorrectly as read-only always zero, though we do have all the code needed to test it and behave accordingly. Instead make it a read-write bit which resets to 1 always, which satisfies all the architectural requirements above. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200214175116.9164-18-peter.maydell@linaro.org --- target/arm/helper.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 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 @@ static const ARMCPRegInfo v6_cp_reginfo[] = { #define PMCRC 0x4 #define PMCRP 0x2 #define PMCRE 0x1 +/* + * Mask of PMCR bits writeable by guest (not including WO bits like C, P, + * which can be written as 1 to trigger behaviour but which stay RAZ). + */ +#define PMCR_WRITEABLE_MASK (PMCRLC | PMCRDP | PMCRX | PMCRD | PMCRE) #define PMXEVTYPER_P 0x80000000 #define PMXEVTYPER_U 0x40000000 @@ -XXX,XX +XXX,XX @@ static void pmcr_write(CPUARMState *env, const ARMCPRegInfo *ri, } } - /* only the DP, X, D and E bits are writable */ - env->cp15.c9_pmcr &= ~0x39; - env->cp15.c9_pmcr |= (value & 0x39); + env->cp15.c9_pmcr &= ~PMCR_WRITEABLE_MASK; + env->cp15.c9_pmcr |= (value & PMCR_WRITEABLE_MASK); pmu_op_finish(env); } @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) .access = PL0_RW, .accessfn = pmreg_access, .type = ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr), - .resetvalue = (cpu->midr & 0xff000000) | (pmcrn << PMCRN_SHIFT), + .resetvalue = (cpu->midr & 0xff000000) | (pmcrn << PMCRN_SHIFT) | + PMCRLC, .writefn = pmcr_write, .raw_writefn = raw_write, }; define_one_arm_cp_reg(cpu, &pmcr); -- 2.20.1 The isar_feature_aa32_pan and isar_feature_aa32_ats1e1 functions are supposed to be testing fields in ID_MMFR3; but a cut-and-paste error meant we were looking at MVFR0 instead. Fix the functions to look at the right register; this requires us to move at least id_mmfr3 to the ARMISARegisters struct; we choose to move all the ID_MMFRn registers for consistency. Fixes: 3d6ad6bb466f Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-19-peter.maydell@linaro.org --- target/arm/cpu.h | 14 +++--- hw/intc/armv7m_nvic.c | 8 ++-- target/arm/cpu.c | 104 +++++++++++++++++++++--------------------- target/arm/cpu64.c | 28 ++++++------ target/arm/helper.c | 12 ++--- target/arm/kvm32.c | 17 +++++++ target/arm/kvm64.c | 10 ++++ 7 files changed, 110 insertions(+), 83 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint32_t id_isar4; uint32_t id_isar5; uint32_t id_isar6; + uint32_t id_mmfr0; + uint32_t id_mmfr1; + uint32_t id_mmfr2; + uint32_t id_mmfr3; + uint32_t id_mmfr4; uint32_t mvfr0; uint32_t mvfr1; uint32_t mvfr2; @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint64_t pmceid0; uint64_t pmceid1; uint32_t id_afr0; - uint32_t id_mmfr0; - uint32_t id_mmfr1; - uint32_t id_mmfr2; - uint32_t id_mmfr3; - uint32_t id_mmfr4; uint64_t id_aa64afr0; uint64_t id_aa64afr1; uint32_t clidr; @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_vminmaxnm(const ARMISARegisters *id) static inline bool isar_feature_aa32_pan(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) != 0; + return FIELD_EX32(id->id_mmfr3, ID_MMFR3, PAN) != 0; } static inline bool isar_feature_aa32_ats1e1(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) >= 2; + return FIELD_EX32(id->id_mmfr3, ID_MMFR3, PAN) >= 2; } static inline bool isar_feature_aa32_pmu_8_1(const ARMISARegisters *id) 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 uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs) case 0xd4c: /* AFR0. */ return cpu->id_afr0; case 0xd50: /* MMFR0. */ - return cpu->id_mmfr0; + return cpu->isar.id_mmfr0; case 0xd54: /* MMFR1. */ - return cpu->id_mmfr1; + return cpu->isar.id_mmfr1; case 0xd58: /* MMFR2. */ - return cpu->id_mmfr2; + return cpu->isar.id_mmfr2; case 0xd5c: /* MMFR3. */ - return cpu->id_mmfr3; + return cpu->isar.id_mmfr3; case 0xd60: /* ISAR0. */ return cpu->isar.id_isar0; case 0xd64: /* ISAR1. */ 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 arm1136_r2_initfn(Object *obj) cpu->id_pfr1 = 0x1; cpu->isar.id_dfr0 = 0x2; cpu->id_afr0 = 0x3; - cpu->id_mmfr0 = 0x01130003; - cpu->id_mmfr1 = 0x10030302; - cpu->id_mmfr2 = 0x01222110; + cpu->isar.id_mmfr0 = 0x01130003; + cpu->isar.id_mmfr1 = 0x10030302; + cpu->isar.id_mmfr2 = 0x01222110; cpu->isar.id_isar0 = 0x00140011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11231111; @@ -XXX,XX +XXX,XX @@ static void arm1136_initfn(Object *obj) cpu->id_pfr1 = 0x1; cpu->isar.id_dfr0 = 0x2; cpu->id_afr0 = 0x3; - cpu->id_mmfr0 = 0x01130003; - cpu->id_mmfr1 = 0x10030302; - cpu->id_mmfr2 = 0x01222110; + cpu->isar.id_mmfr0 = 0x01130003; + cpu->isar.id_mmfr1 = 0x10030302; + cpu->isar.id_mmfr2 = 0x01222110; cpu->isar.id_isar0 = 0x00140011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11231111; @@ -XXX,XX +XXX,XX @@ static void arm1176_initfn(Object *obj) cpu->id_pfr1 = 0x11; cpu->isar.id_dfr0 = 0x33; cpu->id_afr0 = 0; - cpu->id_mmfr0 = 0x01130003; - cpu->id_mmfr1 = 0x10030302; - cpu->id_mmfr2 = 0x01222100; + cpu->isar.id_mmfr0 = 0x01130003; + cpu->isar.id_mmfr1 = 0x10030302; + cpu->isar.id_mmfr2 = 0x01222100; cpu->isar.id_isar0 = 0x0140011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11231121; @@ -XXX,XX +XXX,XX @@ static void arm11mpcore_initfn(Object *obj) cpu->id_pfr1 = 0x1; cpu->isar.id_dfr0 = 0; cpu->id_afr0 = 0x2; - cpu->id_mmfr0 = 0x01100103; - cpu->id_mmfr1 = 0x10020302; - cpu->id_mmfr2 = 0x01222000; + cpu->isar.id_mmfr0 = 0x01100103; + cpu->isar.id_mmfr1 = 0x10020302; + cpu->isar.id_mmfr2 = 0x01222000; cpu->isar.id_isar0 = 0x00100011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11221011; @@ -XXX,XX +XXX,XX @@ static void cortex_m3_initfn(Object *obj) cpu->id_pfr1 = 0x00000200; cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x00000030; - cpu->id_mmfr1 = 0x00000000; - cpu->id_mmfr2 = 0x00000000; - cpu->id_mmfr3 = 0x00000000; + cpu->isar.id_mmfr0 = 0x00000030; + cpu->isar.id_mmfr1 = 0x00000000; + cpu->isar.id_mmfr2 = 0x00000000; + cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01141110; cpu->isar.id_isar1 = 0x02111000; cpu->isar.id_isar2 = 0x21112231; @@ -XXX,XX +XXX,XX @@ static void cortex_m4_initfn(Object *obj) cpu->id_pfr1 = 0x00000200; cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x00000030; - cpu->id_mmfr1 = 0x00000000; - cpu->id_mmfr2 = 0x00000000; - cpu->id_mmfr3 = 0x00000000; + cpu->isar.id_mmfr0 = 0x00000030; + cpu->isar.id_mmfr1 = 0x00000000; + cpu->isar.id_mmfr2 = 0x00000000; + cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01141110; cpu->isar.id_isar1 = 0x02111000; cpu->isar.id_isar2 = 0x21112231; @@ -XXX,XX +XXX,XX @@ static void cortex_m7_initfn(Object *obj) cpu->id_pfr1 = 0x00000200; cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x00100030; - cpu->id_mmfr1 = 0x00000000; - cpu->id_mmfr2 = 0x01000000; - cpu->id_mmfr3 = 0x00000000; + cpu->isar.id_mmfr0 = 0x00100030; + cpu->isar.id_mmfr1 = 0x00000000; + cpu->isar.id_mmfr2 = 0x01000000; + cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01101110; cpu->isar.id_isar1 = 0x02112000; cpu->isar.id_isar2 = 0x20232231; @@ -XXX,XX +XXX,XX @@ static void cortex_m33_initfn(Object *obj) cpu->id_pfr1 = 0x00000210; cpu->isar.id_dfr0 = 0x00200000; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x00101F40; - cpu->id_mmfr1 = 0x00000000; - cpu->id_mmfr2 = 0x01000000; - cpu->id_mmfr3 = 0x00000000; + cpu->isar.id_mmfr0 = 0x00101F40; + cpu->isar.id_mmfr1 = 0x00000000; + cpu->isar.id_mmfr2 = 0x01000000; + cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01101110; cpu->isar.id_isar1 = 0x02212000; cpu->isar.id_isar2 = 0x20232232; @@ -XXX,XX +XXX,XX @@ static void cortex_r5_initfn(Object *obj) cpu->id_pfr1 = 0x001; cpu->isar.id_dfr0 = 0x010400; cpu->id_afr0 = 0x0; - cpu->id_mmfr0 = 0x0210030; - cpu->id_mmfr1 = 0x00000000; - cpu->id_mmfr2 = 0x01200000; - cpu->id_mmfr3 = 0x0211; + cpu->isar.id_mmfr0 = 0x0210030; + cpu->isar.id_mmfr1 = 0x00000000; + cpu->isar.id_mmfr2 = 0x01200000; + cpu->isar.id_mmfr3 = 0x0211; cpu->isar.id_isar0 = 0x02101111; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232141; @@ -XXX,XX +XXX,XX @@ static void cortex_a8_initfn(Object *obj) cpu->id_pfr1 = 0x11; cpu->isar.id_dfr0 = 0x400; cpu->id_afr0 = 0; - cpu->id_mmfr0 = 0x31100003; - cpu->id_mmfr1 = 0x20000000; - cpu->id_mmfr2 = 0x01202000; - cpu->id_mmfr3 = 0x11; + cpu->isar.id_mmfr0 = 0x31100003; + cpu->isar.id_mmfr1 = 0x20000000; + cpu->isar.id_mmfr2 = 0x01202000; + cpu->isar.id_mmfr3 = 0x11; cpu->isar.id_isar0 = 0x00101111; cpu->isar.id_isar1 = 0x12112111; cpu->isar.id_isar2 = 0x21232031; @@ -XXX,XX +XXX,XX @@ static void cortex_a9_initfn(Object *obj) cpu->id_pfr1 = 0x11; cpu->isar.id_dfr0 = 0x000; cpu->id_afr0 = 0; - cpu->id_mmfr0 = 0x00100103; - cpu->id_mmfr1 = 0x20000000; - cpu->id_mmfr2 = 0x01230000; - cpu->id_mmfr3 = 0x00002111; + cpu->isar.id_mmfr0 = 0x00100103; + cpu->isar.id_mmfr1 = 0x20000000; + cpu->isar.id_mmfr2 = 0x01230000; + cpu->isar.id_mmfr3 = 0x00002111; cpu->isar.id_isar0 = 0x00101111; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232041; @@ -XXX,XX +XXX,XX @@ static void cortex_a7_initfn(Object *obj) cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x02010555; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x10101105; - cpu->id_mmfr1 = 0x40000000; - cpu->id_mmfr2 = 0x01240000; - cpu->id_mmfr3 = 0x02102211; + cpu->isar.id_mmfr0 = 0x10101105; + cpu->isar.id_mmfr1 = 0x40000000; + cpu->isar.id_mmfr2 = 0x01240000; + cpu->isar.id_mmfr3 = 0x02102211; /* a7_mpcore_r0p5_trm, page 4-4 gives 0x01101110; but * table 4-41 gives 0x02101110, which includes the arm div insns. */ @@ -XXX,XX +XXX,XX @@ static void cortex_a15_initfn(Object *obj) cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x02010555; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x10201105; - cpu->id_mmfr1 = 0x20000000; - cpu->id_mmfr2 = 0x01240000; - cpu->id_mmfr3 = 0x02102211; + cpu->isar.id_mmfr0 = 0x10201105; + cpu->isar.id_mmfr1 = 0x20000000; + cpu->isar.id_mmfr2 = 0x01240000; + cpu->isar.id_mmfr3 = 0x02102211; cpu->isar.id_isar0 = 0x02101110; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232041; @@ -XXX,XX +XXX,XX @@ static void arm_max_initfn(Object *obj) t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */ cpu->isar.mvfr2 = t; - t = cpu->id_mmfr3; + t = cpu->isar.id_mmfr3; t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */ - cpu->id_mmfr3 = t; + cpu->isar.id_mmfr3 = t; - t = cpu->id_mmfr4; + t = cpu->isar.id_mmfr4; t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */ - cpu->id_mmfr4 = t; + cpu->isar.id_mmfr4 = t; } #endif } diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_a57_initfn(Object *obj) cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x03010066; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x10101105; - cpu->id_mmfr1 = 0x40000000; - cpu->id_mmfr2 = 0x01260000; - cpu->id_mmfr3 = 0x02102211; + cpu->isar.id_mmfr0 = 0x10101105; + cpu->isar.id_mmfr1 = 0x40000000; + cpu->isar.id_mmfr2 = 0x01260000; + cpu->isar.id_mmfr3 = 0x02102211; cpu->isar.id_isar0 = 0x02101110; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232042; @@ -XXX,XX +XXX,XX @@ static void aarch64_a53_initfn(Object *obj) cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x03010066; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x10101105; - cpu->id_mmfr1 = 0x40000000; - cpu->id_mmfr2 = 0x01260000; - cpu->id_mmfr3 = 0x02102211; + cpu->isar.id_mmfr0 = 0x10101105; + cpu->isar.id_mmfr1 = 0x40000000; + cpu->isar.id_mmfr2 = 0x01260000; + cpu->isar.id_mmfr3 = 0x02102211; cpu->isar.id_isar0 = 0x02101110; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232042; @@ -XXX,XX +XXX,XX @@ static void aarch64_a72_initfn(Object *obj) cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x03010066; cpu->id_afr0 = 0x00000000; - cpu->id_mmfr0 = 0x10201105; - cpu->id_mmfr1 = 0x40000000; - cpu->id_mmfr2 = 0x01260000; - cpu->id_mmfr3 = 0x02102211; + cpu->isar.id_mmfr0 = 0x10201105; + cpu->isar.id_mmfr1 = 0x40000000; + cpu->isar.id_mmfr2 = 0x01260000; + cpu->isar.id_mmfr3 = 0x02102211; cpu->isar.id_isar0 = 0x02101110; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232042; @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1); cpu->isar.id_isar6 = u; - u = cpu->id_mmfr3; + u = cpu->isar.id_mmfr3; u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */ - cpu->id_mmfr3 = u; + cpu->isar.id_mmfr3 = u; u = cpu->isar.id_aa64dfr0; u = FIELD_DP64(u, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */ 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 register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 4, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa32_tid3, - .resetvalue = cpu->id_mmfr0 }, + .resetvalue = cpu->isar.id_mmfr0 }, { .name = "ID_MMFR1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 5, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa32_tid3, - .resetvalue = cpu->id_mmfr1 }, + .resetvalue = cpu->isar.id_mmfr1 }, { .name = "ID_MMFR2", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 6, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa32_tid3, - .resetvalue = cpu->id_mmfr2 }, + .resetvalue = cpu->isar.id_mmfr2 }, { .name = "ID_MMFR3", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 7, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa32_tid3, - .resetvalue = cpu->id_mmfr3 }, + .resetvalue = cpu->isar.id_mmfr3 }, { .name = "ID_ISAR0", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 0, .access = PL1_R, .type = ARM_CP_CONST, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 6, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa32_tid3, - .resetvalue = cpu->id_mmfr4 }, + .resetvalue = cpu->isar.id_mmfr4 }, { .name = "ID_ISAR6", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 7, .access = PL1_R, .type = ARM_CP_CONST, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo); define_arm_cp_regs(cpu, vmsa_cp_reginfo); /* TTCBR2 is introduced with ARMv8.2-A32HPD. */ - if (FIELD_EX32(cpu->id_mmfr4, ID_MMFR4, HPDS) != 0) { + if (FIELD_EX32(cpu->isar.id_mmfr4, ID_MMFR4, HPDS) != 0) { define_one_arm_cp_reg(cpu, &ttbcr2_reginfo); } } 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 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) * Fortunately there is not yet anything in there that affects migration. */ + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr0, + ARM_CP15_REG32(0, 0, 1, 4)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr1, + ARM_CP15_REG32(0, 0, 1, 5)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr2, + ARM_CP15_REG32(0, 0, 1, 6)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr3, + ARM_CP15_REG32(0, 0, 1, 7)); + if (read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr4, + ARM_CP15_REG32(0, 0, 2, 6))) { + /* + * Older kernels don't support reading ID_MMFR4 (a new in v8 + * register); assume it's zero. + */ + ahcf->isar.id_mmfr4 = 0; + } + /* * There is no way to read DBGDIDR, because currently 32-bit KVM * doesn't implement debug at all. Leave it at zero. 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 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) */ err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_dfr0, ARM64_SYS_REG(3, 0, 0, 1, 2)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr0, + ARM64_SYS_REG(3, 0, 0, 1, 4)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr1, + ARM64_SYS_REG(3, 0, 0, 1, 5)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr2, + ARM64_SYS_REG(3, 0, 0, 1, 6)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr3, + ARM64_SYS_REG(3, 0, 0, 1, 7)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar0, ARM64_SYS_REG(3, 0, 0, 2, 0)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar1, @@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) ARM64_SYS_REG(3, 0, 0, 2, 4)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar5, ARM64_SYS_REG(3, 0, 0, 2, 5)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr4, + ARM64_SYS_REG(3, 0, 0, 2, 6)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar6, ARM64_SYS_REG(3, 0, 0, 2, 7)); -- 2.20.1 Now we have moved ID_MMFR4 into the ARMISARegisters struct, we can define and use an isar_feature for the presence of the ARMv8.2-AA32HPD feature, rather than open-coding the test. While we're here, correct a comment typo which missed an 'A' from the feature name. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-20-peter.maydell@linaro.org --- target/arm/cpu.h | 5 +++++ target/arm/helper.c | 4 ++-- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_pmu_8_4(const ARMISARegisters *id) FIELD_EX32(id->id_dfr0, ID_DFR0, PERFMON) != 0xf; } +static inline bool isar_feature_aa32_hpd(const ARMISARegisters *id) +{ + return FIELD_EX32(id->id_mmfr4, ID_MMFR4, HPDS) != 0; +} + /* * 64-bit feature tests via id registers. */ 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 register_cp_regs_for_features(ARMCPU *cpu) } else { define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo); define_arm_cp_regs(cpu, vmsa_cp_reginfo); - /* TTCBR2 is introduced with ARMv8.2-A32HPD. */ - if (FIELD_EX32(cpu->isar.id_mmfr4, ID_MMFR4, HPDS) != 0) { + /* TTCBR2 is introduced with ARMv8.2-AA32HPD. */ + if (cpu_isar_feature(aa32_hpd, cpu)) { define_one_arm_cp_reg(cpu, &ttbcr2_reginfo); } } -- 2.20.1 Cut-and-paste errors mean we're using FIELD_EX64() to extract fields from some 32-bit ID register fields. Use FIELD_EX32() instead. (This makes no difference in behaviour, it's just more consistent.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-21-peter.maydell@linaro.org --- target/arm/cpu.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_fp16_arith(const ARMISARegisters *id) static inline bool isar_feature_aa32_fp_d32(const ARMISARegisters *id) { /* Return true if D16-D31 are implemented */ - return FIELD_EX64(id->mvfr0, MVFR0, SIMDREG) >= 2; + return FIELD_EX32(id->mvfr0, MVFR0, SIMDREG) >= 2; } static inline bool isar_feature_aa32_fpshvec(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr0, MVFR0, FPSHVEC) > 0; + return FIELD_EX32(id->mvfr0, MVFR0, FPSHVEC) > 0; } static inline bool isar_feature_aa32_fpdp(const ARMISARegisters *id) { /* Return true if CPU supports double precision floating point */ - return FIELD_EX64(id->mvfr0, MVFR0, FPDP) > 0; + return FIELD_EX32(id->mvfr0, MVFR0, FPDP) > 0; } /* @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_fpdp(const ARMISARegisters *id) */ static inline bool isar_feature_aa32_fp16_spconv(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr1, MVFR1, FPHP) > 0; + return FIELD_EX32(id->mvfr1, MVFR1, FPHP) > 0; } static inline bool isar_feature_aa32_fp16_dpconv(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr1, MVFR1, FPHP) > 1; + return FIELD_EX32(id->mvfr1, MVFR1, FPHP) > 1; } static inline bool isar_feature_aa32_vsel(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr2, MVFR2, FPMISC) >= 1; + return FIELD_EX32(id->mvfr2, MVFR2, FPMISC) >= 1; } static inline bool isar_feature_aa32_vcvt_dr(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr2, MVFR2, FPMISC) >= 2; + return FIELD_EX32(id->mvfr2, MVFR2, FPMISC) >= 2; } static inline bool isar_feature_aa32_vrint(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr2, MVFR2, FPMISC) >= 3; + return FIELD_EX32(id->mvfr2, MVFR2, FPMISC) >= 3; } static inline bool isar_feature_aa32_vminmaxnm(const ARMISARegisters *id) { - return FIELD_EX64(id->mvfr2, MVFR2, FPMISC) >= 4; + return FIELD_EX32(id->mvfr2, MVFR2, FPMISC) >= 4; } static inline bool isar_feature_aa32_pan(const ARMISARegisters *id) -- 2.20.1 The ACTLR2 and HACTLR2 AArch32 system registers didn't exist in ARMv7 or the original ARMv8. They were later added as optional registers, whose presence is signaled by the ID_MMFR4.AC2 field. From ARMv8.2 they are mandatory (ie ID_MMFR4.AC2 must be non-zero). We implemented HACTLR2 in commit 0e0456ab8895a5e85, but we incorrectly made it exist for all v8 CPUs, and we didn't implement ACTLR2 at all. Sort this out by implementing both registers only when they are supposed to exist, and setting the ID_MMFR4 bit for -cpu max. Note that this removes HACTLR2 from our Cortex-A53, -A47 and -A72 CPU models; this is correct, because those CPUs do not implement this register. Fixes: 0e0456ab8895a5e85 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214175116.9164-22-peter.maydell@linaro.org --- target/arm/cpu.h | 5 +++++ target/arm/cpu.c | 1 + target/arm/cpu64.c | 4 ++++ target/arm/helper.c | 32 +++++++++++++++++++++++--------- 4 files changed, 33 insertions(+), 9 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_hpd(const ARMISARegisters *id) return FIELD_EX32(id->id_mmfr4, ID_MMFR4, HPDS) != 0; } +static inline bool isar_feature_aa32_ac2(const ARMISARegisters *id) +{ + return FIELD_EX32(id->id_mmfr4, ID_MMFR4, AC2) != 0; +} + /* * 64-bit feature tests via id registers. */ 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_max_initfn(Object *obj) t = cpu->isar.id_mmfr4; t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */ + t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */ cpu->isar.id_mmfr4 = t; } #endif diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */ cpu->isar.id_mmfr3 = u; + u = cpu->isar.id_mmfr4; + u = FIELD_DP32(u, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */ + cpu->isar.id_mmfr4 = u; + u = cpu->isar.id_aa64dfr0; u = FIELD_DP64(u, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */ cpu->isar.id_aa64dfr0 = u; 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 @@ static const ARMCPRegInfo ats1cp_reginfo[] = { }; #endif +/* + * ACTLR2 and HACTLR2 map to ACTLR_EL1[63:32] and + * ACTLR_EL2[63:32]. They exist only if the ID_MMFR4.AC2 field + * is non-zero, which is never for ARMv7, optionally in ARMv8 + * and mandatorily for ARMv8.2 and up. + * ACTLR2 is banked for S and NS if EL3 is AArch32. Since QEMU's + * implementation is RAZ/WI we can ignore this detail, as we + * do for ACTLR. + */ +static const ARMCPRegInfo actlr2_hactlr2_reginfo[] = { + { .name = "ACTLR2", .state = ARM_CP_STATE_AA32, + .cp = 15, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 3, + .access = PL1_RW, .type = ARM_CP_CONST, + .resetvalue = 0 }, + { .name = "HACTLR2", .state = ARM_CP_STATE_AA32, + .cp = 15, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 3, + .access = PL2_RW, .type = ARM_CP_CONST, + .resetvalue = 0 }, + REGINFO_SENTINEL +}; + void register_cp_regs_for_features(ARMCPU *cpu) { /* Register all the coprocessor registers based on feature bits */ @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) REGINFO_SENTINEL }; define_arm_cp_regs(cpu, auxcr_reginfo); - if (arm_feature(env, ARM_FEATURE_V8)) { - /* HACTLR2 maps to ACTLR_EL2[63:32] and is not in ARMv7 */ - ARMCPRegInfo hactlr2_reginfo = { - .name = "HACTLR2", .state = ARM_CP_STATE_AA32, - .cp = 15, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 3, - .access = PL2_RW, .type = ARM_CP_CONST, - .resetvalue = 0 - }; - define_one_arm_cp_reg(cpu, &hactlr2_reginfo); + if (cpu_isar_feature(aa32_ac2, cpu)) { + define_arm_cp_regs(cpu, actlr2_hactlr2_reginfo); } } -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> We need to be able to use OHCISysBusState outside hcd-ohci.c, so move it to its include file. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200217204812.9857-2-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/usb/hcd-ohci.h | 16 ++++++++++++++++ hw/usb/hcd-ohci.c | 15 --------------- 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/hw/usb/hcd-ohci.h b/hw/usb/hcd-ohci.h index XXXXXXX..XXXXXXX 100644 --- a/hw/usb/hcd-ohci.h +++ b/hw/usb/hcd-ohci.h @@ -XXX,XX +XXX,XX @@ #define HCD_OHCI_H #include "sysemu/dma.h" +#include "hw/usb.h" /* Number of Downstream Ports on the root hub: */ #define OHCI_MAX_PORTS 15 @@ -XXX,XX +XXX,XX @@ typedef struct OHCIState { void (*ohci_die)(struct OHCIState *ohci); } OHCIState; +#define TYPE_SYSBUS_OHCI "sysbus-ohci" +#define SYSBUS_OHCI(obj) OBJECT_CHECK(OHCISysBusState, (obj), TYPE_SYSBUS_OHCI) + +typedef struct { + /*< private >*/ + SysBusDevice parent_obj; + /*< public >*/ + + OHCIState ohci; + char *masterbus; + uint32_t num_ports; + uint32_t firstport; + dma_addr_t dma_offset; +} OHCISysBusState; + extern const VMStateDescription vmstate_ohci_state; void usb_ohci_init(OHCIState *ohci, DeviceState *dev, uint32_t num_ports, diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c index XXXXXXX..XXXXXXX 100644 --- a/hw/usb/hcd-ohci.c +++ b/hw/usb/hcd-ohci.c @@ -XXX,XX +XXX,XX @@ void ohci_sysbus_die(struct OHCIState *ohci) ohci_bus_stop(ohci); } -#define TYPE_SYSBUS_OHCI "sysbus-ohci" -#define SYSBUS_OHCI(obj) OBJECT_CHECK(OHCISysBusState, (obj), TYPE_SYSBUS_OHCI) - -typedef struct { - /*< private >*/ - SysBusDevice parent_obj; - /*< public >*/ - - OHCIState ohci; - char *masterbus; - uint32_t num_ports; - uint32_t firstport; - dma_addr_t dma_offset; -} OHCISysBusState; - static void ohci_realize_pxa(DeviceState *dev, Error **errp) { OHCISysBusState *s = SYSBUS_OHCI(dev); -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> We'll use this property in a follow-up patch to insantiate an EHCI bus with companion support. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200217204812.9857-3-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/usb/hcd-ehci-sysbus.c | 2 ++ 1 file changed, 2 insertions(+) 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 VMStateDescription vmstate_ehci_sysbus = { static Property ehci_sysbus_properties[] = { DEFINE_PROP_UINT32("maxframes", EHCISysBusState, ehci.maxframes, 128), + DEFINE_PROP_BOOL("companion-enable", EHCISysBusState, ehci.companion_enable, + false), DEFINE_PROP_END_OF_LIST(), }; -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> Instantiate EHCI and OHCI controllers on Allwinner A10. OHCI ports are modeled as companions of the respective EHCI ports. With this patch applied, USB controllers are discovered and instantiated when booting the cubieboard machine with a recent Linux kernel. ehci-platform 1c14000.usb: EHCI Host Controller ehci-platform 1c14000.usb: new USB bus registered, assigned bus number 1 ehci-platform 1c14000.usb: irq 26, io mem 0x01c14000 ehci-platform 1c14000.usb: USB 2.0 started, EHCI 1.00 ehci-platform 1c1c000.usb: EHCI Host Controller ehci-platform 1c1c000.usb: new USB bus registered, assigned bus number 2 ehci-platform 1c1c000.usb: irq 31, io mem 0x01c1c000 ehci-platform 1c1c000.usb: USB 2.0 started, EHCI 1.00 ohci-platform 1c14400.usb: Generic Platform OHCI controller ohci-platform 1c14400.usb: new USB bus registered, assigned bus number 3 ohci-platform 1c14400.usb: irq 27, io mem 0x01c14400 ohci-platform 1c1c400.usb: Generic Platform OHCI controller ohci-platform 1c1c400.usb: new USB bus registered, assigned bus number 4 ohci-platform 1c1c400.usb: irq 32, io mem 0x01c1c400 usb 2-1: new high-speed USB device number 2 using ehci-platform usb-storage 2-1:1.0: USB Mass Storage device detected scsi host1: usb-storage 2-1:1.0 usb 3-1: new full-speed USB device number 2 using ohci-platform input: QEMU QEMU USB Mouse as /devices/platform/soc/1c14400.usb/usb3/3-1/3-1:1.0/0003:0627:0001.0001/input/input0 Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200217204812.9857-4-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/hw/arm/allwinner-a10.h | 6 +++++ hw/arm/allwinner-a10.c | 43 ++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) 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/intc/allwinner-a10-pic.h" #include "hw/net/allwinner_emac.h" #include "hw/ide/ahci.h" +#include "hw/usb/hcd-ohci.h" +#include "hw/usb/hcd-ehci.h" #include "target/arm/cpu.h" #define AW_A10_SDRAM_BASE 0x40000000 +#define AW_A10_NUM_USB 2 + #define TYPE_AW_A10 "allwinner-a10" #define AW_A10(obj) OBJECT_CHECK(AwA10State, (obj), TYPE_AW_A10) @@ -XXX,XX +XXX,XX @@ typedef struct AwA10State { AwEmacState emac; AllwinnerAHCIState sata; MemoryRegion sram_a; + EHCISysBusState ehci[AW_A10_NUM_USB]; + OHCISysBusState ohci[AW_A10_NUM_USB]; } AwA10State; #endif 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/arm/allwinner-a10.h" #include "hw/misc/unimp.h" #include "sysemu/sysemu.h" +#include "hw/boards.h" +#include "hw/usb/hcd-ohci.h" #define AW_A10_PIC_REG_BASE 0x01c20400 #define AW_A10_PIT_REG_BASE 0x01c20c00 #define AW_A10_UART0_REG_BASE 0x01c28000 #define AW_A10_EMAC_BASE 0x01c0b000 +#define AW_A10_EHCI_BASE 0x01c14000 +#define AW_A10_OHCI_BASE 0x01c14400 #define AW_A10_SATA_BASE 0x01c18000 static void aw_a10_init(Object *obj) @@ -XXX,XX +XXX,XX @@ static void aw_a10_init(Object *obj) sysbus_init_child_obj(obj, "sata", &s->sata, sizeof(s->sata), TYPE_ALLWINNER_AHCI); + + if (machine_usb(current_machine)) { + int i; + + for (i = 0; i < AW_A10_NUM_USB; i++) { + sysbus_init_child_obj(obj, "ehci[*]", OBJECT(&s->ehci[i]), + sizeof(s->ehci[i]), TYPE_PLATFORM_EHCI); + sysbus_init_child_obj(obj, "ohci[*]", OBJECT(&s->ohci[i]), + sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI); + } + } } static void aw_a10_realize(DeviceState *dev, Error **errp) @@ -XXX,XX +XXX,XX @@ static void aw_a10_realize(DeviceState *dev, Error **errp) serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2, qdev_get_gpio_in(dev, 1), 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN); + + if (machine_usb(current_machine)) { + int i; + + for (i = 0; i < AW_A10_NUM_USB; i++) { + char bus[16]; + + sprintf(bus, "usb-bus.%d", i); + + object_property_set_bool(OBJECT(&s->ehci[i]), true, + "companion-enable", &error_fatal); + object_property_set_bool(OBJECT(&s->ehci[i]), true, "realized", + &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0, + AW_A10_EHCI_BASE + i * 0x8000); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0, + qdev_get_gpio_in(dev, 39 + i)); + + object_property_set_str(OBJECT(&s->ohci[i]), bus, "masterbus", + &error_fatal); + object_property_set_bool(OBJECT(&s->ohci[i]), true, "realized", + &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->ohci[i]), 0, + AW_A10_OHCI_BASE + i * 0x8000); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci[i]), 0, + qdev_get_gpio_in(dev, 64 + i)); + } + } } static void aw_a10_class_init(ObjectClass *oc, void *data) -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> These instructions shift left or right depending on the sign of the input, and 7 bits are significant to the shift. This requires several masks and selects in addition to the actual shifts to form the complete answer. That said, the operation is still a small improvement even for two 64-bit elements -- 13 vector operations instead of 2 * 7 integer operations. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216214232.4230-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.h | 11 +- target/arm/translate.h | 6 + target/arm/neon_helper.c | 33 ---- target/arm/translate-a64.c | 18 +-- target/arm/translate.c | 299 +++++++++++++++++++++++++++++++++++-- target/arm/vec_helper.c | 88 +++++++++++ 6 files changed, 389 insertions(+), 66 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_2(neon_abd_s16, i32, i32, i32) DEF_HELPER_2(neon_abd_u32, i32, i32, i32) DEF_HELPER_2(neon_abd_s32, i32, i32, i32) -DEF_HELPER_2(neon_shl_u8, i32, i32, i32) -DEF_HELPER_2(neon_shl_s8, i32, i32, i32) DEF_HELPER_2(neon_shl_u16, i32, i32, i32) DEF_HELPER_2(neon_shl_s16, i32, i32, i32) -DEF_HELPER_2(neon_shl_u32, i32, i32, i32) -DEF_HELPER_2(neon_shl_s32, i32, i32, i32) -DEF_HELPER_2(neon_shl_u64, i64, i64, i64) -DEF_HELPER_2(neon_shl_s64, i64, i64, i64) DEF_HELPER_2(neon_rshl_u8, i32, i32, i32) DEF_HELPER_2(neon_rshl_s8, i32, i32, i32) DEF_HELPER_2(neon_rshl_u16, i32, i32, i32) @@ -XXX,XX +XXX,XX @@ DEF_HELPER_FLAGS_2(frint64_s, TCG_CALL_NO_RWG, f32, f32, ptr) DEF_HELPER_FLAGS_2(frint32_d, TCG_CALL_NO_RWG, f64, f64, ptr) DEF_HELPER_FLAGS_2(frint64_d, TCG_CALL_NO_RWG, f64, f64, ptr) +DEF_HELPER_FLAGS_4(gvec_sshl_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_sshl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_ushl_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_ushl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) + #ifdef TARGET_AARCH64 #include "helper-a64.h" #include "helper-sve.h" diff --git a/target/arm/translate.h b/target/arm/translate.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -XXX,XX +XXX,XX @@ uint64_t vfp_expand_imm(int size, uint8_t imm8); extern const GVecGen3 mla_op[4]; extern const GVecGen3 mls_op[4]; extern const GVecGen3 cmtst_op[4]; +extern const GVecGen3 sshl_op[4]; +extern const GVecGen3 ushl_op[4]; extern const GVecGen2i ssra_op[4]; extern const GVecGen2i usra_op[4]; extern const GVecGen2i sri_op[4]; @@ -XXX,XX +XXX,XX @@ extern const GVecGen4 sqadd_op[4]; extern const GVecGen4 uqsub_op[4]; extern const GVecGen4 sqsub_op[4]; void gen_cmtst_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b); +void gen_ushl_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b); +void gen_sshl_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b); +void gen_ushl_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b); +void gen_sshl_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b); /* * Forward to the isar_feature_* tests given a DisasContext pointer. diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/neon_helper.c +++ b/target/arm/neon_helper.c @@ -XXX,XX +XXX,XX @@ NEON_VOP(abd_u32, neon_u32, 1) } else { \ dest = src1 << tmp; \ }} while (0) -NEON_VOP(shl_u8, neon_u8, 4) NEON_VOP(shl_u16, neon_u16, 2) -NEON_VOP(shl_u32, neon_u32, 1) #undef NEON_FN -uint64_t HELPER(neon_shl_u64)(uint64_t val, uint64_t shiftop) -{ - int8_t shift = (int8_t)shiftop; - if (shift >= 64 || shift <= -64) { - val = 0; - } else if (shift < 0) { - val >>= -shift; - } else { - val <<= shift; - } - return val; -} - #define NEON_FN(dest, src1, src2) do { \ int8_t tmp; \ tmp = (int8_t)src2; \ @@ -XXX,XX +XXX,XX @@ uint64_t HELPER(neon_shl_u64)(uint64_t val, uint64_t shiftop) } else { \ dest = src1 << tmp; \ }} while (0) -NEON_VOP(shl_s8, neon_s8, 4) NEON_VOP(shl_s16, neon_s16, 2) -NEON_VOP(shl_s32, neon_s32, 1) #undef NEON_FN -uint64_t HELPER(neon_shl_s64)(uint64_t valop, uint64_t shiftop) -{ - int8_t shift = (int8_t)shiftop; - int64_t val = valop; - if (shift >= 64) { - val = 0; - } else if (shift <= -64) { - val >>= 63; - } else if (shift < 0) { - val >>= -shift; - } else { - val <<= shift; - } - return val; -} - #define NEON_FN(dest, src1, src2) do { \ int8_t tmp; \ tmp = (int8_t)src2; \ 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_3same_64(DisasContext *s, int opcode, bool u, break; case 0x8: /* SSHL, USHL */ if (u) { - gen_helper_neon_shl_u64(tcg_rd, tcg_rn, tcg_rm); + gen_ushl_i64(tcg_rd, tcg_rn, tcg_rm); } else { - gen_helper_neon_shl_s64(tcg_rd, tcg_rn, tcg_rm); + gen_sshl_i64(tcg_rd, tcg_rn, tcg_rm); } break; case 0x9: /* SQSHL, UQSHL */ @@ -XXX,XX +XXX,XX @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn) is_q ? 16 : 8, vec_full_reg_size(s), (u ? uqsub_op : sqsub_op) + size); return; + case 0x08: /* SSHL, USHL */ + gen_gvec_op3(s, is_q, rd, rn, rm, + u ? &ushl_op[size] : &sshl_op[size]); + return; case 0x0c: /* SMAX, UMAX */ if (u) { gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_umax, size); @@ -XXX,XX +XXX,XX @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn) genfn = fns[size][u]; break; } - case 0x8: /* SSHL, USHL */ - { - static NeonGenTwoOpFn * const fns[3][2] = { - { gen_helper_neon_shl_s8, gen_helper_neon_shl_u8 }, - { gen_helper_neon_shl_s16, gen_helper_neon_shl_u16 }, - { gen_helper_neon_shl_s32, gen_helper_neon_shl_u32 }, - }; - genfn = fns[size][u]; - break; - } case 0x9: /* SQSHL, UQSHL */ { static NeonGenTwoOpEnvFn * const fns[3][2] = { 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 inline void gen_neon_shift_narrow(int size, TCGv_i32 var, TCGv_i32 shift, if (u) { switch (size) { case 1: gen_helper_neon_shl_u16(var, var, shift); break; - case 2: gen_helper_neon_shl_u32(var, var, shift); break; + case 2: gen_ushl_i32(var, var, shift); break; default: abort(); } } else { switch (size) { case 1: gen_helper_neon_shl_s16(var, var, shift); break; - case 2: gen_helper_neon_shl_s32(var, var, shift); break; + case 2: gen_sshl_i32(var, var, shift); break; default: abort(); } } @@ -XXX,XX +XXX,XX @@ const GVecGen3 cmtst_op[4] = { .vece = MO_64 }, }; +void gen_ushl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift) +{ + TCGv_i32 lval = tcg_temp_new_i32(); + TCGv_i32 rval = tcg_temp_new_i32(); + TCGv_i32 lsh = tcg_temp_new_i32(); + TCGv_i32 rsh = tcg_temp_new_i32(); + TCGv_i32 zero = tcg_const_i32(0); + TCGv_i32 max = tcg_const_i32(32); + + /* + * Rely on the TCG guarantee that out of range shifts produce + * unspecified results, not undefined behaviour (i.e. no trap). + * Discard out-of-range results after the fact. + */ + tcg_gen_ext8s_i32(lsh, shift); + tcg_gen_neg_i32(rsh, lsh); + tcg_gen_shl_i32(lval, src, lsh); + tcg_gen_shr_i32(rval, src, rsh); + tcg_gen_movcond_i32(TCG_COND_LTU, dst, lsh, max, lval, zero); + tcg_gen_movcond_i32(TCG_COND_LTU, dst, rsh, max, rval, dst); + + tcg_temp_free_i32(lval); + tcg_temp_free_i32(rval); + tcg_temp_free_i32(lsh); + tcg_temp_free_i32(rsh); + tcg_temp_free_i32(zero); + tcg_temp_free_i32(max); +} + +void gen_ushl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift) +{ + TCGv_i64 lval = tcg_temp_new_i64(); + TCGv_i64 rval = tcg_temp_new_i64(); + TCGv_i64 lsh = tcg_temp_new_i64(); + TCGv_i64 rsh = tcg_temp_new_i64(); + TCGv_i64 zero = tcg_const_i64(0); + TCGv_i64 max = tcg_const_i64(64); + + /* + * Rely on the TCG guarantee that out of range shifts produce + * unspecified results, not undefined behaviour (i.e. no trap). + * Discard out-of-range results after the fact. + */ + tcg_gen_ext8s_i64(lsh, shift); + tcg_gen_neg_i64(rsh, lsh); + tcg_gen_shl_i64(lval, src, lsh); + tcg_gen_shr_i64(rval, src, rsh); + tcg_gen_movcond_i64(TCG_COND_LTU, dst, lsh, max, lval, zero); + tcg_gen_movcond_i64(TCG_COND_LTU, dst, rsh, max, rval, dst); + + tcg_temp_free_i64(lval); + tcg_temp_free_i64(rval); + tcg_temp_free_i64(lsh); + tcg_temp_free_i64(rsh); + tcg_temp_free_i64(zero); + tcg_temp_free_i64(max); +} + +static void gen_ushl_vec(unsigned vece, TCGv_vec dst, + TCGv_vec src, TCGv_vec shift) +{ + TCGv_vec lval = tcg_temp_new_vec_matching(dst); + TCGv_vec rval = tcg_temp_new_vec_matching(dst); + TCGv_vec lsh = tcg_temp_new_vec_matching(dst); + TCGv_vec rsh = tcg_temp_new_vec_matching(dst); + TCGv_vec msk, max; + + tcg_gen_neg_vec(vece, rsh, shift); + if (vece == MO_8) { + tcg_gen_mov_vec(lsh, shift); + } else { + msk = tcg_temp_new_vec_matching(dst); + tcg_gen_dupi_vec(vece, msk, 0xff); + tcg_gen_and_vec(vece, lsh, shift, msk); + tcg_gen_and_vec(vece, rsh, rsh, msk); + tcg_temp_free_vec(msk); + } + + /* + * Rely on the TCG guarantee that out of range shifts produce + * unspecified results, not undefined behaviour (i.e. no trap). + * Discard out-of-range results after the fact. + */ + tcg_gen_shlv_vec(vece, lval, src, lsh); + tcg_gen_shrv_vec(vece, rval, src, rsh); + + max = tcg_temp_new_vec_matching(dst); + tcg_gen_dupi_vec(vece, max, 8 << vece); + + /* + * The choice of LT (signed) and GEU (unsigned) are biased toward + * the instructions of the x86_64 host. For MO_8, the whole byte + * is significant so we must use an unsigned compare; otherwise we + * have already masked to a byte and so a signed compare works. + * Other tcg hosts have a full set of comparisons and do not care. + */ + if (vece == MO_8) { + tcg_gen_cmp_vec(TCG_COND_GEU, vece, lsh, lsh, max); + tcg_gen_cmp_vec(TCG_COND_GEU, vece, rsh, rsh, max); + tcg_gen_andc_vec(vece, lval, lval, lsh); + tcg_gen_andc_vec(vece, rval, rval, rsh); + } else { + tcg_gen_cmp_vec(TCG_COND_LT, vece, lsh, lsh, max); + tcg_gen_cmp_vec(TCG_COND_LT, vece, rsh, rsh, max); + tcg_gen_and_vec(vece, lval, lval, lsh); + tcg_gen_and_vec(vece, rval, rval, rsh); + } + tcg_gen_or_vec(vece, dst, lval, rval); + + tcg_temp_free_vec(max); + tcg_temp_free_vec(lval); + tcg_temp_free_vec(rval); + tcg_temp_free_vec(lsh); + tcg_temp_free_vec(rsh); +} + +static const TCGOpcode ushl_list[] = { + INDEX_op_neg_vec, INDEX_op_shlv_vec, + INDEX_op_shrv_vec, INDEX_op_cmp_vec, 0 +}; + +const GVecGen3 ushl_op[4] = { + { .fniv = gen_ushl_vec, + .fno = gen_helper_gvec_ushl_b, + .opt_opc = ushl_list, + .vece = MO_8 }, + { .fniv = gen_ushl_vec, + .fno = gen_helper_gvec_ushl_h, + .opt_opc = ushl_list, + .vece = MO_16 }, + { .fni4 = gen_ushl_i32, + .fniv = gen_ushl_vec, + .opt_opc = ushl_list, + .vece = MO_32 }, + { .fni8 = gen_ushl_i64, + .fniv = gen_ushl_vec, + .opt_opc = ushl_list, + .vece = MO_64 }, +}; + +void gen_sshl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift) +{ + TCGv_i32 lval = tcg_temp_new_i32(); + TCGv_i32 rval = tcg_temp_new_i32(); + TCGv_i32 lsh = tcg_temp_new_i32(); + TCGv_i32 rsh = tcg_temp_new_i32(); + TCGv_i32 zero = tcg_const_i32(0); + TCGv_i32 max = tcg_const_i32(31); + + /* + * Rely on the TCG guarantee that out of range shifts produce + * unspecified results, not undefined behaviour (i.e. no trap). + * Discard out-of-range results after the fact. + */ + tcg_gen_ext8s_i32(lsh, shift); + tcg_gen_neg_i32(rsh, lsh); + tcg_gen_shl_i32(lval, src, lsh); + tcg_gen_umin_i32(rsh, rsh, max); + tcg_gen_sar_i32(rval, src, rsh); + tcg_gen_movcond_i32(TCG_COND_LEU, lval, lsh, max, lval, zero); + tcg_gen_movcond_i32(TCG_COND_LT, dst, lsh, zero, rval, lval); + + tcg_temp_free_i32(lval); + tcg_temp_free_i32(rval); + tcg_temp_free_i32(lsh); + tcg_temp_free_i32(rsh); + tcg_temp_free_i32(zero); + tcg_temp_free_i32(max); +} + +void gen_sshl_i64(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 shift) +{ + TCGv_i64 lval = tcg_temp_new_i64(); + TCGv_i64 rval = tcg_temp_new_i64(); + TCGv_i64 lsh = tcg_temp_new_i64(); + TCGv_i64 rsh = tcg_temp_new_i64(); + TCGv_i64 zero = tcg_const_i64(0); + TCGv_i64 max = tcg_const_i64(63); + + /* + * Rely on the TCG guarantee that out of range shifts produce + * unspecified results, not undefined behaviour (i.e. no trap). + * Discard out-of-range results after the fact. + */ + tcg_gen_ext8s_i64(lsh, shift); + tcg_gen_neg_i64(rsh, lsh); + tcg_gen_shl_i64(lval, src, lsh); + tcg_gen_umin_i64(rsh, rsh, max); + tcg_gen_sar_i64(rval, src, rsh); + tcg_gen_movcond_i64(TCG_COND_LEU, lval, lsh, max, lval, zero); + tcg_gen_movcond_i64(TCG_COND_LT, dst, lsh, zero, rval, lval); + + tcg_temp_free_i64(lval); + tcg_temp_free_i64(rval); + tcg_temp_free_i64(lsh); + tcg_temp_free_i64(rsh); + tcg_temp_free_i64(zero); + tcg_temp_free_i64(max); +} + +static void gen_sshl_vec(unsigned vece, TCGv_vec dst, + TCGv_vec src, TCGv_vec shift) +{ + TCGv_vec lval = tcg_temp_new_vec_matching(dst); + TCGv_vec rval = tcg_temp_new_vec_matching(dst); + TCGv_vec lsh = tcg_temp_new_vec_matching(dst); + TCGv_vec rsh = tcg_temp_new_vec_matching(dst); + TCGv_vec tmp = tcg_temp_new_vec_matching(dst); + + /* + * Rely on the TCG guarantee that out of range shifts produce + * unspecified results, not undefined behaviour (i.e. no trap). + * Discard out-of-range results after the fact. + */ + tcg_gen_neg_vec(vece, rsh, shift); + if (vece == MO_8) { + tcg_gen_mov_vec(lsh, shift); + } else { + tcg_gen_dupi_vec(vece, tmp, 0xff); + tcg_gen_and_vec(vece, lsh, shift, tmp); + tcg_gen_and_vec(vece, rsh, rsh, tmp); + } + + /* Bound rsh so out of bound right shift gets -1. */ + tcg_gen_dupi_vec(vece, tmp, (8 << vece) - 1); + tcg_gen_umin_vec(vece, rsh, rsh, tmp); + tcg_gen_cmp_vec(TCG_COND_GT, vece, tmp, lsh, tmp); + + tcg_gen_shlv_vec(vece, lval, src, lsh); + tcg_gen_sarv_vec(vece, rval, src, rsh); + + /* Select in-bound left shift. */ + tcg_gen_andc_vec(vece, lval, lval, tmp); + + /* Select between left and right shift. */ + if (vece == MO_8) { + tcg_gen_dupi_vec(vece, tmp, 0); + tcg_gen_cmpsel_vec(TCG_COND_LT, vece, dst, lsh, tmp, rval, lval); + } else { + tcg_gen_dupi_vec(vece, tmp, 0x80); + tcg_gen_cmpsel_vec(TCG_COND_LT, vece, dst, lsh, tmp, lval, rval); + } + + tcg_temp_free_vec(lval); + tcg_temp_free_vec(rval); + tcg_temp_free_vec(lsh); + tcg_temp_free_vec(rsh); + tcg_temp_free_vec(tmp); +} + +static const TCGOpcode sshl_list[] = { + INDEX_op_neg_vec, INDEX_op_umin_vec, INDEX_op_shlv_vec, + INDEX_op_sarv_vec, INDEX_op_cmp_vec, INDEX_op_cmpsel_vec, 0 +}; + +const GVecGen3 sshl_op[4] = { + { .fniv = gen_sshl_vec, + .fno = gen_helper_gvec_sshl_b, + .opt_opc = sshl_list, + .vece = MO_8 }, + { .fniv = gen_sshl_vec, + .fno = gen_helper_gvec_sshl_h, + .opt_opc = sshl_list, + .vece = MO_16 }, + { .fni4 = gen_sshl_i32, + .fniv = gen_sshl_vec, + .opt_opc = sshl_list, + .vece = MO_32 }, + { .fni8 = gen_sshl_i64, + .fniv = gen_sshl_vec, + .opt_opc = sshl_list, + .vece = MO_64 }, +}; + static void gen_uqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, TCGv_vec a, TCGv_vec b) { @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) vec_size, vec_size); } return 0; + + case NEON_3R_VSHL: + /* Note the operation is vshl vd,vm,vn */ + tcg_gen_gvec_3(rd_ofs, rm_ofs, rn_ofs, vec_size, vec_size, + u ? &ushl_op[size] : &sshl_op[size]); + return 0; } if (size == 3) { @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) neon_load_reg64(cpu_V0, rn + pass); neon_load_reg64(cpu_V1, rm + pass); switch (op) { - case NEON_3R_VSHL: - if (u) { - gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0); - } else { - gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0); - } - break; case NEON_3R_VQSHL: if (u) { gen_helper_neon_qshl_u64(cpu_V0, cpu_env, @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) } pairwise = 0; switch (op) { - case NEON_3R_VSHL: case NEON_3R_VQSHL: case NEON_3R_VRSHL: case NEON_3R_VQRSHL: @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) case NEON_3R_VHSUB: GEN_NEON_INTEGER_OP(hsub); break; - case NEON_3R_VSHL: - GEN_NEON_INTEGER_OP(shl); - break; case NEON_3R_VQSHL: GEN_NEON_INTEGER_OP_ENV(qshl); break; @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) } } else { if (input_unsigned) { - gen_helper_neon_shl_u64(cpu_V0, in, tmp64); + gen_ushl_i64(cpu_V0, in, tmp64); } else { - gen_helper_neon_shl_s64(cpu_V0, in, tmp64); + gen_sshl_i64(cpu_V0, in, tmp64); } } tmp = tcg_temp_new_i32(); diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/vec_helper.c +++ b/target/arm/vec_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(gvec_fmlal_idx_a64)(void *vd, void *vn, void *vm, do_fmlal_idx(vd, vn, vm, &env->vfp.fp_status, desc, get_flush_inputs_to_zero(&env->vfp.fp_status_f16)); } + +void HELPER(gvec_sshl_b)(void *vd, void *vn, void *vm, uint32_t desc) +{ + intptr_t i, opr_sz = simd_oprsz(desc); + int8_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz; ++i) { + int8_t mm = m[i]; + int8_t nn = n[i]; + int8_t res = 0; + if (mm >= 0) { + if (mm < 8) { + res = nn << mm; + } + } else { + res = nn >> (mm > -8 ? -mm : 7); + } + d[i] = res; + } + clear_tail(d, opr_sz, simd_maxsz(desc)); +} + +void HELPER(gvec_sshl_h)(void *vd, void *vn, void *vm, uint32_t desc) +{ + intptr_t i, opr_sz = simd_oprsz(desc); + int16_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz / 2; ++i) { + int8_t mm = m[i]; /* only 8 bits of shift are significant */ + int16_t nn = n[i]; + int16_t res = 0; + if (mm >= 0) { + if (mm < 16) { + res = nn << mm; + } + } else { + res = nn >> (mm > -16 ? -mm : 15); + } + d[i] = res; + } + clear_tail(d, opr_sz, simd_maxsz(desc)); +} + +void HELPER(gvec_ushl_b)(void *vd, void *vn, void *vm, uint32_t desc) +{ + intptr_t i, opr_sz = simd_oprsz(desc); + uint8_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz; ++i) { + int8_t mm = m[i]; + uint8_t nn = n[i]; + uint8_t res = 0; + if (mm >= 0) { + if (mm < 8) { + res = nn << mm; + } + } else { + if (mm > -8) { + res = nn >> -mm; + } + } + d[i] = res; + } + clear_tail(d, opr_sz, simd_maxsz(desc)); +} + +void HELPER(gvec_ushl_h)(void *vd, void *vn, void *vm, uint32_t desc) +{ + intptr_t i, opr_sz = simd_oprsz(desc); + uint16_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz / 2; ++i) { + int8_t mm = m[i]; /* only 8 bits of shift are significant */ + uint16_t nn = n[i]; + uint16_t res = 0; + if (mm >= 0) { + if (mm < 16) { + res = nn << mm; + } + } else { + if (mm > -16) { + res = nn >> -mm; + } + } + d[i] = res; + } + clear_tail(d, opr_sz, simd_maxsz(desc)); +} -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The gvec form will be needed for implementing SVE2. Extend the implementation to operate on uint64_t instead of uint32_t. Use a counted inner loop instead of terminating when op1 goes to zero, looking toward the required implementation for ARMv8.4-DIT. Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216214232.4230-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.h | 3 ++- target/arm/neon_helper.c | 22 ---------------------- target/arm/translate-a64.c | 10 +++------- target/arm/translate.c | 11 ++++------- target/arm/vec_helper.c | 30 ++++++++++++++++++++++++++++++ 5 files changed, 39 insertions(+), 37 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_2(neon_sub_u8, i32, i32, i32) DEF_HELPER_2(neon_sub_u16, i32, i32, i32) DEF_HELPER_2(neon_mul_u8, i32, i32, i32) DEF_HELPER_2(neon_mul_u16, i32, i32, i32) -DEF_HELPER_2(neon_mul_p8, i32, i32, i32) DEF_HELPER_2(neon_mull_p8, i64, i32, i32) DEF_HELPER_2(neon_tst_u8, i32, i32, i32) @@ -XXX,XX +XXX,XX @@ DEF_HELPER_FLAGS_4(gvec_sshl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_ushl_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_ushl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_pmul_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) + #ifdef TARGET_AARCH64 #include "helper-a64.h" #include "helper-sve.h" diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/neon_helper.c +++ b/target/arm/neon_helper.c @@ -XXX,XX +XXX,XX @@ NEON_VOP(mul_u16, neon_u16, 2) /* Polynomial multiplication is like integer multiplication except the partial products are XORed, not added. */ -uint32_t HELPER(neon_mul_p8)(uint32_t op1, uint32_t op2) -{ - uint32_t mask; - uint32_t result; - result = 0; - while (op1) { - mask = 0; - if (op1 & 1) - mask |= 0xff; - if (op1 & (1 << 8)) - mask |= (0xff << 8); - if (op1 & (1 << 16)) - mask |= (0xff << 16); - if (op1 & (1 << 24)) - mask |= (0xff << 24); - result ^= op2 & mask; - op1 = (op1 >> 1) & 0x7f7f7f7f; - op2 = (op2 << 1) & 0xfefefefe; - } - return result; -} - uint64_t HELPER(neon_mull_p8)(uint32_t op1, uint32_t op2) { uint64_t result = 0; 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_simd_3same_int(DisasContext *s, uint32_t insn) case 0x13: /* MUL, PMUL */ if (!u) { /* MUL */ gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_mul, size); - return; + } else { /* PMUL */ + gen_gvec_op3_ool(s, is_q, rd, rn, rm, 0, gen_helper_gvec_pmul_b); } - break; + return; case 0x12: /* MLA, MLS */ if (u) { gen_gvec_op3(s, is_q, rd, rn, rm, &mls_op[size]); @@ -XXX,XX +XXX,XX @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn) genfn = fns[size][u]; break; } - case 0x13: /* MUL, PMUL */ - assert(u); /* PMUL */ - assert(size == 0); - genfn = gen_helper_neon_mul_p8; - break; case 0x16: /* SQDMULH, SQRDMULH */ { static NeonGenTwoOpEnvFn * const fns[2][2] = { 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_neon_data_insn(DisasContext *s, uint32_t insn) case NEON_3R_VMUL: /* VMUL */ if (u) { - /* Polynomial case allows only P8 and is handled below. */ + /* Polynomial case allows only P8. */ if (size != 0) { return 1; } + tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size, + 0, gen_helper_gvec_pmul_b); } else { tcg_gen_gvec_mul(size, rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size); - return 0; } - break; + return 0; case NEON_3R_VML: /* VMLA, VMLS */ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size, @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) tmp2 = neon_load_reg(rd, pass); gen_neon_add(size, tmp, tmp2); break; - case NEON_3R_VMUL: - /* VMUL.P8; other cases already eliminated. */ - gen_helper_neon_mul_p8(tmp, tmp, tmp2); - break; case NEON_3R_VPMAX: GEN_NEON_INTEGER_OP(pmax); break; diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/vec_helper.c +++ b/target/arm/vec_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(gvec_ushl_h)(void *vd, void *vn, void *vm, uint32_t desc) } clear_tail(d, opr_sz, simd_maxsz(desc)); } + +/* + * 8x8->8 polynomial multiply. + * + * Polynomial multiplication is like integer multiplication except the + * partial products are XORed, not added. + * + * TODO: expose this as a generic vector operation, as it is a common + * crypto building block. + */ +void HELPER(gvec_pmul_b)(void *vd, void *vn, void *vm, uint32_t desc) +{ + intptr_t i, j, opr_sz = simd_oprsz(desc); + uint64_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz / 8; ++i) { + uint64_t nn = n[i]; + uint64_t mm = m[i]; + uint64_t rr = 0; + + for (j = 0; j < 8; ++j) { + uint64_t mask = (nn & 0x0101010101010101ull) * 0xff; + rr ^= mm & mask; + mm = (mm << 1) & 0xfefefefefefefefeull; + nn >>= 1; + } + d[i] = rr; + } + clear_tail(d, opr_sz, simd_maxsz(desc)); +} -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The gvec form will be needed for implementing SVE2. Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216214232.4230-4-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.h | 4 +--- target/arm/neon_helper.c | 30 ------------------------------ target/arm/translate-a64.c | 28 +++------------------------- target/arm/translate.c | 16 ++-------------- target/arm/vec_helper.c | 33 +++++++++++++++++++++++++++++++++ 5 files changed, 39 insertions(+), 72 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_FLAGS_3(crc32, TCG_CALL_NO_RWG_SE, i32, i32, i32, i32) DEF_HELPER_FLAGS_3(crc32c, TCG_CALL_NO_RWG_SE, i32, i32, i32, i32) DEF_HELPER_2(dc_zva, void, env, i64) -DEF_HELPER_FLAGS_2(neon_pmull_64_lo, TCG_CALL_NO_RWG_SE, i64, i64, i64) -DEF_HELPER_FLAGS_2(neon_pmull_64_hi, TCG_CALL_NO_RWG_SE, i64, i64, i64) - DEF_HELPER_FLAGS_5(gvec_qrdmlah_s16, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_5(gvec_qrdmlsh_s16, TCG_CALL_NO_RWG, @@ -XXX,XX +XXX,XX @@ DEF_HELPER_FLAGS_4(gvec_ushl_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_ushl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_pmul_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_pmull_q, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) #ifdef TARGET_AARCH64 #include "helper-a64.h" diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/neon_helper.c +++ b/target/arm/neon_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(neon_zip16)(void *vd, void *vm) rm[0] = m0; rd[0] = d0; } - -/* Helper function for 64 bit polynomial multiply case: - * perform PolynomialMult(op1, op2) and return either the top or - * bottom half of the 128 bit result. - */ -uint64_t HELPER(neon_pmull_64_lo)(uint64_t op1, uint64_t op2) -{ - int bitnum; - uint64_t res = 0; - - for (bitnum = 0; bitnum < 64; bitnum++) { - if (op1 & (1ULL << bitnum)) { - res ^= op2 << bitnum; - } - } - return res; -} -uint64_t HELPER(neon_pmull_64_hi)(uint64_t op1, uint64_t op2) -{ - int bitnum; - uint64_t res = 0; - - /* bit 0 of op1 can't influence the high 64 bits at all */ - for (bitnum = 1; bitnum < 64; bitnum++) { - if (op1 & (1ULL << bitnum)) { - res ^= op2 >> (64 - bitnum); - } - } - return res; -} 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_3rd_narrowing(DisasContext *s, int is_q, int is_u, int size, clear_vec_high(s, is_q, rd); } -static void handle_pmull_64(DisasContext *s, int is_q, int rd, int rn, int rm) -{ - /* PMULL of 64 x 64 -> 128 is an odd special case because it - * is the only three-reg-diff instruction which produces a - * 128-bit wide result from a single operation. However since - * it's possible to calculate the two halves more or less - * separately we just use two helper calls. - */ - TCGv_i64 tcg_op1 = tcg_temp_new_i64(); - TCGv_i64 tcg_op2 = tcg_temp_new_i64(); - TCGv_i64 tcg_res = tcg_temp_new_i64(); - - read_vec_element(s, tcg_op1, rn, is_q, MO_64); - read_vec_element(s, tcg_op2, rm, is_q, MO_64); - gen_helper_neon_pmull_64_lo(tcg_res, tcg_op1, tcg_op2); - write_vec_element(s, tcg_res, rd, 0, MO_64); - gen_helper_neon_pmull_64_hi(tcg_res, tcg_op1, tcg_op2); - write_vec_element(s, tcg_res, rd, 1, MO_64); - - tcg_temp_free_i64(tcg_op1); - tcg_temp_free_i64(tcg_op2); - tcg_temp_free_i64(tcg_res); -} - /* AdvSIMD three different * 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_simd_three_reg_diff(DisasContext *s, uint32_t insn) if (!fp_access_check(s)) { return; } - handle_pmull_64(s, is_q, rd, rn, rm); + /* The Q field specifies lo/hi half input for this insn. */ + gen_gvec_op3_ool(s, true, rd, rn, rm, is_q, + gen_helper_gvec_pmull_q); return; } goto is_widening; 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_neon_data_insn(DisasContext *s, uint32_t insn) * outside the loop below as it only performs a single pass. */ if (op == 14 && size == 2) { - TCGv_i64 tcg_rn, tcg_rm, tcg_rd; - if (!dc_isar_feature(aa32_pmull, s)) { return 1; } - tcg_rn = tcg_temp_new_i64(); - tcg_rm = tcg_temp_new_i64(); - tcg_rd = tcg_temp_new_i64(); - neon_load_reg64(tcg_rn, rn); - neon_load_reg64(tcg_rm, rm); - gen_helper_neon_pmull_64_lo(tcg_rd, tcg_rn, tcg_rm); - neon_store_reg64(tcg_rd, rd); - gen_helper_neon_pmull_64_hi(tcg_rd, tcg_rn, tcg_rm); - neon_store_reg64(tcg_rd, rd + 1); - tcg_temp_free_i64(tcg_rn); - tcg_temp_free_i64(tcg_rm); - tcg_temp_free_i64(tcg_rd); + tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, 16, 16, + 0, gen_helper_gvec_pmull_q); return 0; } diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/vec_helper.c +++ b/target/arm/vec_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(gvec_pmul_b)(void *vd, void *vn, void *vm, uint32_t desc) } clear_tail(d, opr_sz, simd_maxsz(desc)); } + +/* + * 64x64->128 polynomial multiply. + * Because of the lanes are not accessed in strict columns, + * this probably cannot be turned into a generic helper. + */ +void HELPER(gvec_pmull_q)(void *vd, void *vn, void *vm, uint32_t desc) +{ + intptr_t i, j, opr_sz = simd_oprsz(desc); + intptr_t hi = simd_data(desc); + uint64_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz / 8; i += 2) { + uint64_t nn = n[i + hi]; + uint64_t mm = m[i + hi]; + uint64_t rhi = 0; + uint64_t rlo = 0; + + /* Bit 0 can only influence the low 64-bit result. */ + if (nn & 1) { + rlo = mm; + } + + for (j = 1; j < 64; ++j) { + uint64_t mask = -((nn >> j) & 1); + rlo ^= (mm << j) & mask; + rhi ^= (mm >> (64 - j)) & mask; + } + d[i] = rlo; + d[i + 1] = rhi; + } + clear_tail(d, opr_sz, simd_maxsz(desc)); +} -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> We still need two different helpers, since NEON and SVE2 get the inputs from different locations within the source vector. However, we can convert both to the same internal form for computation. The sve2 helper is not used yet, but adding it with this patch helps illustrate why the neon changes are helpful. Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200216214232.4230-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper-sve.h | 2 ++ target/arm/helper.h | 3 +- target/arm/neon_helper.c | 32 -------------------- target/arm/translate-a64.c | 27 +++++++++++------ target/arm/translate.c | 26 ++++++++--------- target/arm/vec_helper.c | 60 ++++++++++++++++++++++++++++++++++++++ 6 files changed, 95 insertions(+), 55 deletions(-) diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper-sve.h +++ b/target/arm/helper-sve.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_FLAGS_6(sve_stdd_le_zd, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr, tl, i32) DEF_HELPER_FLAGS_6(sve_stdd_be_zd, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr, tl, i32) + +DEF_HELPER_FLAGS_4(sve2_pmull_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) 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_2(neon_sub_u8, i32, i32, i32) DEF_HELPER_2(neon_sub_u16, i32, i32, i32) DEF_HELPER_2(neon_mul_u8, i32, i32, i32) DEF_HELPER_2(neon_mul_u16, i32, i32, i32) -DEF_HELPER_2(neon_mull_p8, i64, i32, i32) DEF_HELPER_2(neon_tst_u8, i32, i32, i32) DEF_HELPER_2(neon_tst_u16, i32, i32, i32) @@ -XXX,XX +XXX,XX @@ DEF_HELPER_FLAGS_4(gvec_ushl_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_pmul_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_pmull_q, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(neon_pmull_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) + #ifdef TARGET_AARCH64 #include "helper-a64.h" #include "helper-sve.h" diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/neon_helper.c +++ b/target/arm/neon_helper.c @@ -XXX,XX +XXX,XX @@ NEON_VOP(mul_u8, neon_u8, 4) NEON_VOP(mul_u16, neon_u16, 2) #undef NEON_FN -/* Polynomial multiplication is like integer multiplication except the - partial products are XORed, not added. */ -uint64_t HELPER(neon_mull_p8)(uint32_t op1, uint32_t op2) -{ - uint64_t result = 0; - uint64_t mask; - uint64_t op2ex = op2; - op2ex = (op2ex & 0xff) | - ((op2ex & 0xff00) << 8) | - ((op2ex & 0xff0000) << 16) | - ((op2ex & 0xff000000) << 24); - while (op1) { - mask = 0; - if (op1 & 1) { - mask |= 0xffff; - } - if (op1 & (1 << 8)) { - mask |= (0xffffU << 16); - } - if (op1 & (1 << 16)) { - mask |= (0xffffULL << 32); - } - if (op1 & (1 << 24)) { - mask |= (0xffffULL << 48); - } - result ^= op2ex & mask; - op1 = (op1 >> 1) & 0x7f7f7f7f; - op2ex <<= 1; - } - return result; -} - #define NEON_FN(dest, src1, src2) dest = (src1 & src2) ? -1 : 0 NEON_VOP(tst_u8, neon_u8, 4) NEON_VOP(tst_u16, neon_u16, 2) 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_3rd_widening(DisasContext *s, int is_q, int is_u, int size, gen_helper_neon_addl_saturate_s32(tcg_passres, cpu_env, tcg_passres, tcg_passres); break; - case 14: /* PMULL */ - assert(size == 0); - gen_helper_neon_mull_p8(tcg_passres, tcg_op1, tcg_op2); - break; default: g_assert_not_reached(); } @@ -XXX,XX +XXX,XX @@ static void disas_simd_three_reg_diff(DisasContext *s, uint32_t insn) handle_3rd_narrowing(s, is_q, is_u, size, opcode, rd, rn, rm); break; case 14: /* PMULL, PMULL2 */ - if (is_u || size == 1 || size == 2) { + if (is_u) { unallocated_encoding(s); return; } - if (size == 3) { + switch (size) { + case 0: /* PMULL.P8 */ + if (!fp_access_check(s)) { + return; + } + /* The Q field specifies lo/hi half input for this insn. */ + gen_gvec_op3_ool(s, true, rd, rn, rm, is_q, + gen_helper_neon_pmull_h); + break; + + case 3: /* PMULL.P64 */ if (!dc_isar_feature(aa64_pmull, s)) { unallocated_encoding(s); return; @@ -XXX,XX +XXX,XX @@ static void disas_simd_three_reg_diff(DisasContext *s, uint32_t insn) /* The Q field specifies lo/hi half input for this insn. */ gen_gvec_op3_ool(s, true, rd, rn, rm, is_q, gen_helper_gvec_pmull_q); - return; + break; + + default: + unallocated_encoding(s); + break; } - goto is_widening; + return; case 9: /* SQDMLAL, SQDMLAL2 */ case 11: /* SQDMLSL, SQDMLSL2 */ case 13: /* SQDMULL, SQDMULL2 */ @@ -XXX,XX +XXX,XX @@ static void disas_simd_three_reg_diff(DisasContext *s, uint32_t insn) unallocated_encoding(s); return; } - is_widening: if (!fp_access_check(s)) { return; } 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_neon_data_insn(DisasContext *s, uint32_t insn) return 1; } - /* Handle VMULL.P64 (Polynomial 64x64 to 128 bit multiply) - * outside the loop below as it only performs a single pass. - */ - if (op == 14 && size == 2) { - if (!dc_isar_feature(aa32_pmull, s)) { - return 1; + /* Handle polynomial VMULL in a single pass. */ + if (op == 14) { + if (size == 0) { + /* VMULL.P8 */ + tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, 16, 16, + 0, gen_helper_neon_pmull_h); + } else { + /* VMULL.P64 */ + if (!dc_isar_feature(aa32_pmull, s)) { + return 1; + } + tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, 16, 16, + 0, gen_helper_gvec_pmull_q); } - tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, 16, 16, - 0, gen_helper_gvec_pmull_q); return 0; } @@ -XXX,XX +XXX,XX @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) /* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */ gen_neon_mull(cpu_V0, tmp, tmp2, size, u); break; - case 14: /* Polynomial VMULL */ - gen_helper_neon_mull_p8(cpu_V0, tmp, tmp2); - tcg_temp_free_i32(tmp2); - tcg_temp_free_i32(tmp); - break; default: /* 15 is RESERVED: caught earlier */ abort(); } diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/vec_helper.c +++ b/target/arm/vec_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(gvec_pmull_q)(void *vd, void *vn, void *vm, uint32_t desc) } clear_tail(d, opr_sz, simd_maxsz(desc)); } + +/* + * 8x8->16 polynomial multiply. + * + * The byte inputs are expanded to (or extracted from) half-words. + * Note that neon and sve2 get the inputs from different positions. + * This allows 4 bytes to be processed in parallel with uint64_t. + */ + +static uint64_t expand_byte_to_half(uint64_t x) +{ + return (x & 0x000000ff) + | ((x & 0x0000ff00) << 8) + | ((x & 0x00ff0000) << 16) + | ((x & 0xff000000) << 24); +} + +static uint64_t pmull_h(uint64_t op1, uint64_t op2) +{ + uint64_t result = 0; + int i; + + for (i = 0; i < 8; ++i) { + uint64_t mask = (op1 & 0x0001000100010001ull) * 0xffff; + result ^= op2 & mask; + op1 >>= 1; + op2 <<= 1; + } + return result; +} + +void HELPER(neon_pmull_h)(void *vd, void *vn, void *vm, uint32_t desc) +{ + int hi = simd_data(desc); + uint64_t *d = vd, *n = vn, *m = vm; + uint64_t nn = n[hi], mm = m[hi]; + + d[0] = pmull_h(expand_byte_to_half(nn), expand_byte_to_half(mm)); + nn >>= 32; + mm >>= 32; + d[1] = pmull_h(expand_byte_to_half(nn), expand_byte_to_half(mm)); + + clear_tail(d, 16, simd_maxsz(desc)); +} + +#ifdef TARGET_AARCH64 +void HELPER(sve2_pmull_h)(void *vd, void *vn, void *vm, uint32_t desc) +{ + int shift = simd_data(desc) * 8; + intptr_t i, opr_sz = simd_oprsz(desc); + uint64_t *d = vd, *n = vn, *m = vm; + + for (i = 0; i < opr_sz / 8; ++i) { + uint64_t nn = (n[i] >> shift) & 0x00ff00ff00ff00ffull; + uint64_t mm = (m[i] >> shift) & 0x00ff00ff00ff00ffull; + + d[i] = pmull_h(nn, mm); + } +} +#endif -- 2.20.1 From: Francisco Iglesias <francisco.iglesias@xilinx.com> Correct the number of dummy cycles required by the FAST_READ_4 command (to be eight, one dummy byte). Fixes: ef06ca3946 ("xilinx_spips: Add support for RX discard and RX drain") Suggested-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Francisco Iglesias <frasse.iglesias@gmail.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 20200218113350.6090-1-frasse.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/ssi/xilinx_spips.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c index XXXXXXX..XXXXXXX 100644 --- a/hw/ssi/xilinx_spips.c +++ b/hw/ssi/xilinx_spips.c @@ -XXX,XX +XXX,XX @@ static int xilinx_spips_num_dummies(XilinxQSPIPS *qs, uint8_t command) case FAST_READ: case DOR: case QOR: + case FAST_READ_4: case DOR_4: case QOR_4: return 1; case DIOR: - case FAST_READ_4: case DIOR_4: return 2; case QIOR: -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> Booting the r2d machine from flash fails because flash is not discovered. Looking at the flattened memory tree, we see the following. FlatView #1 AS "memory", root: system AS "cpu-memory-0", root: system AS "sh_pci_host", root: bus master container Root memory region: system 0000000000000000-000000000000ffff (prio 0, i/o): io 0000000000010000-0000000000ffffff (prio 0, i/o): r2d.flash @0000000000010000 The overlapping memory region is sh_pci.isa, ie the ISA I/O region bridge. This region is initially assigned to address 0xfe240000, but overwritten with a write into the PCIIOBR register. This write is expected to adjust the PCI memory window, but not to change the region's base adddress. Peter Maydell provided the following detailed explanation. "Section 22.3.7 and in particular figure 22.3 (of "SSH7751R user's manual: hardware") are clear about how this is supposed to work: there is a window at 0xfe240000 in the system register space for PCI I/O space. When the CPU makes an access into that area, the PCI controller calculates the PCI address to use by combining bits 0..17 of the system address with the bits 31..18 value that the guest has put into the PCIIOBR. That is, writing to the PCIIOBR changes which section of the IO address space is visible in the 0xfe240000 window. Instead what QEMU's implementation does is move the window to whatever value the guest writes to the PCIIOBR register -- so if the guest writes 0 we put the window at 0 in system address space." Fix the problem by calling memory_region_set_alias_offset() instead of removing and re-adding the PCI ISA subregion on writes into PCIIOBR. At the same time, in sh_pci_device_realize(), don't set iobr since it is overwritten later anyway. Instead, pass the base address to memory_region_add_subregion() directly. Many thanks to Peter Maydell for the detailed problem analysis, and for providing suggestions on how to fix the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Message-id: 20200218201050.15273-1-linux@roeck-us.net Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/sh4/sh_pci.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/hw/sh4/sh_pci.c b/hw/sh4/sh_pci.c index XXXXXXX..XXXXXXX 100644 --- a/hw/sh4/sh_pci.c +++ b/hw/sh4/sh_pci.c @@ -XXX,XX +XXX,XX @@ static void sh_pci_reg_write (void *p, hwaddr addr, uint64_t val, pcic->mbr = val & 0xff000001; break; case 0x1c8: - if ((val & 0xfffc0000) != (pcic->iobr & 0xfffc0000)) { - memory_region_del_subregion(get_system_memory(), &pcic->isa); - pcic->iobr = val & 0xfffc0001; - memory_region_add_subregion(get_system_memory(), - pcic->iobr & 0xfffc0000, &pcic->isa); - } + pcic->iobr = val & 0xfffc0001; + memory_region_set_alias_offset(&pcic->isa, val & 0xfffc0000); break; case 0x220: pci_data_write(phb->bus, pcic->par, val, 4); @@ -XXX,XX +XXX,XX @@ static void sh_pci_device_realize(DeviceState *dev, Error **errp) get_system_io(), 0, 0x40000); sysbus_init_mmio(sbd, &s->memconfig_p4); sysbus_init_mmio(sbd, &s->memconfig_a7); - s->iobr = 0xfe240000; - memory_region_add_subregion(get_system_memory(), s->iobr, &s->isa); + memory_region_add_subregion(get_system_memory(), 0xfe240000, &s->isa); s->dev = pci_create_simple(phb->bus, PCI_DEVFN(0, 0), "sh_pci_host"); } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The old name, isar_feature_aa32_fp_d32, does not reflect the MVFR0 field name, SIMDReg. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200214181547.21408-3-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: wrapped one long line] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 2 +- target/arm/translate-vfp.inc.c | 53 +++++++++++++++++----------------- 2 files changed, 28 insertions(+), 27 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_fp16_arith(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, FP) == 1; } -static inline bool isar_feature_aa32_fp_d32(const ARMISARegisters *id) +static inline bool isar_feature_aa32_simd_r32(const ARMISARegisters *id) { /* Return true if D16-D31 are implemented */ return FIELD_EX32(id->mvfr0, MVFR0, SIMDREG) >= 2; diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -XXX,XX +XXX,XX @@ static bool trans_VSEL(DisasContext *s, arg_VSEL *a) } /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_fp_d32, s) && + if (dp && !dc_isar_feature(aa32_simd_r32, s) && ((a->vm | a->vn | a->vd) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMINMAXNM(DisasContext *s, arg_VMINMAXNM *a) } /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_fp_d32, s) && + if (dp && !dc_isar_feature(aa32_simd_r32, s) && ((a->vm | a->vn | a->vd) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINT(DisasContext *s, arg_VRINT *a) } /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_fp_d32, s) && + if (dp && !dc_isar_feature(aa32_simd_r32, s) && ((a->vm | a->vd) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT(DisasContext *s, arg_VCVT *a) } /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_fp_d32, s) && (a->vm & 0x10)) { + if (dp && !dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a) uint32_t offset; /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vn & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_from_gp(DisasContext *s, arg_VMOV_from_gp *a) uint32_t offset; /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vn & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VDUP(DisasContext *s, arg_VDUP *a) } /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vn & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_64_dp(DisasContext *s, arg_VMOV_64_dp *a) */ /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VLDR_VSTR_dp(DisasContext *s, arg_VLDR_VSTR_dp *a) TCGv_i64 tmp; /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VLDM_VSTM_dp(DisasContext *s, arg_VLDM_VSTM_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd + n) > 16) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd + n) > 16) { return false; } @@ -XXX,XX +XXX,XX @@ static bool do_vfp_3op_dp(DisasContext *s, VFPGen3OpDPFn *fn, TCGv_ptr fpst; /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((vd | vn | vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vn | vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool do_vfp_2op_dp(DisasContext *s, VFPGen2OpDPFn *fn, int vd, int vm) TCGv_i64 f0, fd; /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((vd | vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((a->vd | a->vn | a->vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && + ((a->vd | a->vn | a->vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_imm_dp(DisasContext *s, arg_VMOV_imm_dp *a) vd = a->vd; /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (vd & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCMP_dp(DisasContext *s, arg_VCMP_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((a->vd | a->vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && ((a->vd | a->vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f64_f16(DisasContext *s, arg_VCVT_f64_f16 *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f16_f64(DisasContext *s, arg_VCVT_f16_f64 *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTR_dp(DisasContext *s, arg_VRINTR_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((a->vd | a->vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && ((a->vd | a->vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTZ_dp(DisasContext *s, arg_VRINTZ_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((a->vd | a->vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && ((a->vd | a->vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTX_dp(DisasContext *s, arg_VRINTX_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && ((a->vd | a->vm) & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && ((a->vd | a->vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_sp(DisasContext *s, arg_VCVT_sp *a) TCGv_i32 vm; /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_dp(DisasContext *s, arg_VCVT_dp *a) TCGv_i32 vd; /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_int_dp(DisasContext *s, arg_VCVT_int_dp *a) TCGv_ptr fpst; /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VJCVT(DisasContext *s, arg_VJCVT *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a) } /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_dp_int(DisasContext *s, arg_VCVT_dp_int *a) TCGv_ptr fpst; /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_fp_d32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Many uses of ARM_FEATURE_VFP3 are testing for the number of simd registers implemented. Use the proper test vs MVFR0.SIMDReg. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-4-richard.henderson@linaro.org [PMM: fix typo in commit message] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.c | 9 ++++----- target/arm/helper.c | 13 ++++++------- target/arm/translate.c | 2 +- 3 files changed, 11 insertions(+), 13 deletions(-) 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_dump_state(CPUState *cs, FILE *f, int flags) if (flags & CPU_DUMP_FPU) { int numvfpregs = 0; - if (arm_feature(env, ARM_FEATURE_VFP)) { - numvfpregs += 16; - } - if (arm_feature(env, ARM_FEATURE_VFP3)) { - numvfpregs += 16; + if (cpu_isar_feature(aa32_simd_r32, cpu)) { + numvfpregs = 32; + } else if (arm_feature(env, ARM_FEATURE_VFP)) { + numvfpregs = 16; } for (i = 0; i < numvfpregs; i++) { uint64_t v = *aa32_vfp_dreg(env, i); 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 @@ static void switch_mode(CPUARMState *env, int mode); static int vfp_gdb_get_reg(CPUARMState *env, uint8_t *buf, int reg) { - int nregs; + ARMCPU *cpu = env_archcpu(env); + int nregs = cpu_isar_feature(aa32_simd_r32, cpu) ? 32 : 16; /* VFP data registers are always little-endian. */ - nregs = arm_feature(env, ARM_FEATURE_VFP3) ? 32 : 16; if (reg < nregs) { stq_le_p(buf, *aa32_vfp_dreg(env, reg)); return 8; @@ -XXX,XX +XXX,XX @@ static int vfp_gdb_get_reg(CPUARMState *env, uint8_t *buf, int reg) static int vfp_gdb_set_reg(CPUARMState *env, uint8_t *buf, int reg) { - int nregs; + ARMCPU *cpu = env_archcpu(env); + int nregs = cpu_isar_feature(aa32_simd_r32, cpu) ? 32 : 16; - nregs = arm_feature(env, ARM_FEATURE_VFP3) ? 32 : 16; if (reg < nregs) { *aa32_vfp_dreg(env, reg) = ldq_le_p(buf); return 8; @@ -XXX,XX +XXX,XX @@ static void cpacr_write(CPUARMState *env, const ARMCPRegInfo *ri, /* VFPv3 and upwards with NEON implement 32 double precision * registers (D0-D31). */ - if (!arm_feature(env, ARM_FEATURE_NEON) || - !arm_feature(env, ARM_FEATURE_VFP3)) { + if (!cpu_isar_feature(aa32_simd_r32, env_archcpu(env))) { /* D32DIS [30] is RAO/WI if D16-31 are not implemented. */ value |= (1 << 30); } @@ -XXX,XX +XXX,XX @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu) } else if (arm_feature(env, ARM_FEATURE_NEON)) { gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg, 51, "arm-neon.xml", 0); - } else if (arm_feature(env, ARM_FEATURE_VFP3)) { + } else if (cpu_isar_feature(aa32_simd_r32, cpu)) { gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg, 35, "arm-vfp3.xml", 0); } else if (arm_feature(env, ARM_FEATURE_VFP)) { 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_dsp_insn(DisasContext *s, uint32_t insn) #define VFP_SREG(insn, bigbit, smallbit) \ ((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1)) #define VFP_DREG(reg, insn, bigbit, smallbit) do { \ - if (arm_dc_feature(s, ARM_FEATURE_VFP3)) { \ + if (dc_isar_feature(aa32_simd_r32, s)) { \ reg = (((insn) >> (bigbit)) & 0x0f) \ | (((insn) >> ((smallbit) - 4)) & 0x10); \ } else { \ -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> We are going to convert FEATURE tests to ISAR tests, so FPSP needs to be set for these cpus, like we have already for FPDP. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-5-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) 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 arm926_initfn(Object *obj) */ cpu->isar.id_isar1 = FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1); /* - * Similarly, we need to set MVFR0 fields to enable double precision - * and short vector support even though ARMv5 doesn't have this register. + * Similarly, we need to set MVFR0 fields to enable vfp and short vector + * support even though ARMv5 doesn't have this register. */ cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1); + cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSP, 1); cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPDP, 1); } @@ -XXX,XX +XXX,XX @@ static void arm1026_initfn(Object *obj) */ cpu->isar.id_isar1 = FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1); /* - * Similarly, we need to set MVFR0 fields to enable double precision - * and short vector support even though ARMv5 doesn't have this register. + * Similarly, we need to set MVFR0 fields to enable vfp and short vector + * support even though ARMv5 doesn't have this register. */ cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1); + cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSP, 1); cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPDP, 1); { -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Use this in the places that were checking ARM_FEATURE_VFP, and are obviously testing for the existance of the register set as opposed to testing for some particular instruction extension. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-6-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 6 ++++++ hw/intc/armv7m_nvic.c | 20 ++++++++++---------- linux-user/arm/signal.c | 4 ++-- target/arm/arch_dump.c | 11 ++++++----- target/arm/cpu.c | 8 ++++---- target/arm/helper.c | 4 ++-- target/arm/m_helper.c | 11 ++++++----- target/arm/machine.c | 3 +-- 8 files changed, 37 insertions(+), 30 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_fp16_arith(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, FP) == 1; } +static inline bool isar_feature_aa32_simd_r16(const ARMISARegisters *id) +{ + /* Return true if D0-D15 are implemented */ + return FIELD_EX32(id->mvfr0, MVFR0, SIMDREG) > 0; +} + static inline bool isar_feature_aa32_simd_r32(const ARMISARegisters *id) { /* Return true if D16-D31 are implemented */ 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 uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs) case 0xd84: /* CSSELR */ return cpu->env.v7m.csselr[attrs.secure]; case 0xd88: /* CPACR */ - if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (!cpu_isar_feature(aa32_simd_r16, cpu)) { return 0; } return cpu->env.v7m.cpacr[attrs.secure]; case 0xd8c: /* NSACR */ - if (!attrs.secure || !arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (!attrs.secure || !cpu_isar_feature(aa32_simd_r16, cpu)) { return 0; } return cpu->env.v7m.nsacr; @@ -XXX,XX +XXX,XX @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs) } return cpu->env.v7m.sfar; case 0xf34: /* FPCCR */ - if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (!cpu_isar_feature(aa32_simd_r16, cpu)) { return 0; } if (attrs.secure) { @@ -XXX,XX +XXX,XX @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs) return value; } case 0xf38: /* FPCAR */ - if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (!cpu_isar_feature(aa32_simd_r16, cpu)) { return 0; } return cpu->env.v7m.fpcar[attrs.secure]; case 0xf3c: /* FPDSCR */ - if (!arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (!cpu_isar_feature(aa32_simd_r16, cpu)) { return 0; } return cpu->env.v7m.fpdscr[attrs.secure]; @@ -XXX,XX +XXX,XX @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value, } break; case 0xd88: /* CPACR */ - if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { /* We implement only the Floating Point extension's CP10/CP11 */ cpu->env.v7m.cpacr[attrs.secure] = value & (0xf << 20); } break; case 0xd8c: /* NSACR */ - if (attrs.secure && arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (attrs.secure && cpu_isar_feature(aa32_simd_r16, cpu)) { /* We implement only the Floating Point extension's CP10/CP11 */ cpu->env.v7m.nsacr = value & (3 << 10); } @@ -XXX,XX +XXX,XX @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value, break; } case 0xf34: /* FPCCR */ - if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { /* Not all bits here are banked. */ uint32_t fpccr_s; @@ -XXX,XX +XXX,XX @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value, } break; case 0xf38: /* FPCAR */ - if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { value &= ~7; cpu->env.v7m.fpcar[attrs.secure] = value; } break; case 0xf3c: /* FPDSCR */ - if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { value &= 0x07c00000; cpu->env.v7m.fpdscr[attrs.secure] = value; } diff --git a/linux-user/arm/signal.c b/linux-user/arm/signal.c index XXXXXXX..XXXXXXX 100644 --- a/linux-user/arm/signal.c +++ b/linux-user/arm/signal.c @@ -XXX,XX +XXX,XX @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc, setup_sigcontext(&uc->tuc_mcontext, env, set->sig[0]); /* Save coprocessor signal frame. */ regspace = uc->tuc_regspace; - if (arm_feature(env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, env_archcpu(env))) { regspace = setup_sigframe_v2_vfp(regspace, env); } if (arm_feature(env, ARM_FEATURE_IWMMXT)) { @@ -XXX,XX +XXX,XX @@ static int do_sigframe_return_v2(CPUARMState *env, /* Restore coprocessor signal frame */ regspace = uc->tuc_regspace; - if (arm_feature(env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, env_archcpu(env))) { regspace = restore_sigframe_v2_vfp(env, regspace); if (!regspace) { return 1; diff --git a/target/arm/arch_dump.c b/target/arm/arch_dump.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/arch_dump.c +++ b/target/arm/arch_dump.c @@ -XXX,XX +XXX,XX @@ int arm_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs, int cpuid, void *opaque) { struct arm_note note; - CPUARMState *env = &ARM_CPU(cs)->env; + ARMCPU *cpu = ARM_CPU(cs); + CPUARMState *env = &cpu->env; DumpState *s = opaque; - int ret, i, fpvalid = !!arm_feature(env, ARM_FEATURE_VFP); + int ret, i; + bool fpvalid = cpu_isar_feature(aa32_simd_r16, cpu); arm_note_init(&note, s, "CORE", 5, NT_PRSTATUS, sizeof(note.prstatus)); @@ -XXX,XX +XXX,XX @@ int cpu_get_dump_info(ArchDumpInfo *info, ssize_t cpu_get_note_size(int class, int machine, int nr_cpus) { ARMCPU *cpu = ARM_CPU(first_cpu); - CPUARMState *env = &cpu->env; size_t note_size; if (class == ELFCLASS64) { @@ -XXX,XX +XXX,XX @@ ssize_t cpu_get_note_size(int class, int machine, int nr_cpus) note_size += AARCH64_PRFPREG_NOTE_SIZE; #ifdef TARGET_AARCH64 if (cpu_isar_feature(aa64_sve, cpu)) { - note_size += AARCH64_SVE_NOTE_SIZE(env); + note_size += AARCH64_SVE_NOTE_SIZE(&cpu->env); } #endif } else { note_size = ARM_PRSTATUS_NOTE_SIZE; - if (arm_feature(env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { note_size += ARM_VFP_NOTE_SIZE; } } 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->v7m.ccr[M_REG_S] |= R_V7M_CCR_UNALIGN_TRP_MASK; } - if (arm_feature(env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { env->v7m.fpccr[M_REG_NS] = R_V7M_FPCCR_ASPEN_MASK; env->v7m.fpccr[M_REG_S] = R_V7M_FPCCR_ASPEN_MASK | R_V7M_FPCCR_LSPEN_MASK | R_V7M_FPCCR_S_MASK; @@ -XXX,XX +XXX,XX @@ static void arm_cpu_dump_state(CPUState *cs, FILE *f, int flags) int numvfpregs = 0; if (cpu_isar_feature(aa32_simd_r32, cpu)) { numvfpregs = 32; - } else if (arm_feature(env, ARM_FEATURE_VFP)) { + } else if (cpu_isar_feature(aa32_simd_r16, cpu)) { numvfpregs = 16; } for (i = 0; i < numvfpregs; i++) { @@ -XXX,XX +XXX,XX @@ void arm_cpu_post_init(Object *obj) * KVM does not currently allow us to lie to the guest about its * ID/feature registers, so the guest always sees what the host has. */ - if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, cpu)) { cpu->has_vfp = true; if (!kvm_enabled()) { qdev_property_add_static(DEVICE(obj), &arm_cpu_has_vfp_property); @@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) * We rely on no XScale CPU having VFP so we can use the same bits in the * TB flags field for VECSTRIDE and XSCALE_CPAR. */ - assert(!(arm_feature(env, ARM_FEATURE_VFP) && + assert(!(cpu_isar_feature(aa32_simd_r16, cpu) && arm_feature(env, ARM_FEATURE_XSCALE))); if (arm_feature(env, ARM_FEATURE_V7) && 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 @@ static void cpacr_write(CPUARMState *env, const ARMCPRegInfo *ri, * ASEDIS [31] and D32DIS [30] are both UNK/SBZP without VFP. * TRCDIS [28] is RAZ/WI since we do not implement a trace macrocell. */ - if (arm_feature(env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, env_archcpu(env))) { /* VFP coprocessor: cp10 & cp11 [23:20] */ mask |= (1 << 31) | (1 << 30) | (0xf << 20); @@ -XXX,XX +XXX,XX @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu) } else if (cpu_isar_feature(aa32_simd_r32, cpu)) { gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg, 35, "arm-vfp3.xml", 0); - } else if (arm_feature(env, ARM_FEATURE_VFP)) { + } else if (cpu_isar_feature(aa32_simd_r16, cpu)) { gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg, 19, "arm-vfp.xml", 0); } diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/m_helper.c +++ b/target/arm/m_helper.c @@ -XXX,XX +XXX,XX @@ static uint32_t v7m_integrity_sig(CPUARMState *env, uint32_t lr) */ uint32_t sig = 0xfefa125a; - if (!arm_feature(env, ARM_FEATURE_VFP) || (lr & R_V7M_EXCRET_FTYPE_MASK)) { + if (!cpu_isar_feature(aa32_simd_r16, env_archcpu(env)) + || (lr & R_V7M_EXCRET_FTYPE_MASK)) { sig |= 1; } return sig; @@ -XXX,XX +XXX,XX @@ static void v7m_exception_taken(ARMCPU *cpu, uint32_t lr, bool dotailchain, if (dotailchain) { /* Sanitize LR FType and PREFIX bits */ - if (!arm_feature(env, ARM_FEATURE_VFP)) { + if (!cpu_isar_feature(aa32_simd_r16, cpu)) { lr |= R_V7M_EXCRET_FTYPE_MASK; } lr = deposit32(lr, 24, 8, 0xff); @@ -XXX,XX +XXX,XX @@ static void do_v7m_exception_exit(ARMCPU *cpu) ftype = excret & R_V7M_EXCRET_FTYPE_MASK; - if (!arm_feature(env, ARM_FEATURE_VFP) && !ftype) { + if (!ftype && !cpu_isar_feature(aa32_simd_r16, cpu)) { qemu_log_mask(LOG_GUEST_ERROR, "M profile: zero FTYPE in exception " "exit PC value 0x%" PRIx32 " is UNPREDICTABLE " "if FPU not present\n", @@ -XXX,XX +XXX,XX @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val) * SFPA is RAZ/WI from NS. FPCA is RO if NSACR.CP10 == 0, * RES0 if the FPU is not present, and is stored in the S bank */ - if (arm_feature(env, ARM_FEATURE_VFP) && + if (cpu_isar_feature(aa32_simd_r16, env_archcpu(env)) && extract32(env->v7m.nsacr, 10, 1)) { env->v7m.control[M_REG_S] &= ~R_V7M_CONTROL_FPCA_MASK; env->v7m.control[M_REG_S] |= val & R_V7M_CONTROL_FPCA_MASK; @@ -XXX,XX +XXX,XX @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val) env->v7m.control[env->v7m.secure] &= ~R_V7M_CONTROL_NPRIV_MASK; env->v7m.control[env->v7m.secure] |= val & R_V7M_CONTROL_NPRIV_MASK; } - if (arm_feature(env, ARM_FEATURE_VFP)) { + if (cpu_isar_feature(aa32_simd_r16, env_archcpu(env))) { /* * SFPA is RAZ/WI from NS or if no FPU. * FPCA is RO if NSACR.CP10 == 0, RES0 if the FPU is not present. diff --git a/target/arm/machine.c b/target/arm/machine.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/machine.c +++ b/target/arm/machine.c @@ -XXX,XX +XXX,XX @@ static bool vfp_needed(void *opaque) { ARMCPU *cpu = opaque; - CPUARMState *env = &cpu->env; - return arm_feature(env, ARM_FEATURE_VFP); + return cpu_isar_feature(aa32_simd_r16, cpu); } static int get_fpscr(QEMUFile *f, void *opaque, size_t size, -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The old name, isar_feature_aa32_fpdp, does not reflect that the test includes VFPv2. We will introduce further feature tests for VFPv3. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200214181547.21408-7-richard.henderson@linaro.org [PMM: fixed grammar in commit message] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 4 ++-- target/arm/translate-vfp.inc.c | 40 +++++++++++++++++----------------- 2 files changed, 22 insertions(+), 22 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_fpshvec(const ARMISARegisters *id) return FIELD_EX32(id->mvfr0, MVFR0, FPSHVEC) > 0; } -static inline bool isar_feature_aa32_fpdp(const ARMISARegisters *id) +static inline bool isar_feature_aa32_fpdp_v2(const ARMISARegisters *id) { - /* Return true if CPU supports double precision floating point */ + /* Return true if CPU supports double precision floating point, VFPv2 */ return FIELD_EX32(id->mvfr0, MVFR0, FPDP) > 0; } diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -XXX,XX +XXX,XX @@ static bool trans_VSEL(DisasContext *s, arg_VSEL *a) return false; } - if (dp && !dc_isar_feature(aa32_fpdp, s)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMINMAXNM(DisasContext *s, arg_VMINMAXNM *a) return false; } - if (dp && !dc_isar_feature(aa32_fpdp, s)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINT(DisasContext *s, arg_VRINT *a) return false; } - if (dp && !dc_isar_feature(aa32_fpdp, s)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT(DisasContext *s, arg_VCVT *a) return false; } - if (dp && !dc_isar_feature(aa32_fpdp, s)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool do_vfp_3op_dp(DisasContext *s, VFPGen3OpDPFn *fn, return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool do_vfp_2op_dp(DisasContext *s, VFPGen2OpDPFn *fn, int vd, int vm) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_imm_dp(DisasContext *s, arg_VMOV_imm_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCMP_dp(DisasContext *s, arg_VCMP_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f64_f16(DisasContext *s, arg_VCVT_f64_f16 *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f16_f64(DisasContext *s, arg_VCVT_f16_f64 *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTR_dp(DisasContext *s, arg_VRINTR_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTZ_dp(DisasContext *s, arg_VRINTZ_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTX_dp(DisasContext *s, arg_VRINTX_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_sp(DisasContext *s, arg_VCVT_sp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_dp(DisasContext *s, arg_VCVT_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_int_dp(DisasContext *s, arg_VCVT_int_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VJCVT(DisasContext *s, arg_VJCVT *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_dp_int(DisasContext *s, arg_VCVT_dp_int *a) return false; } - if (!dc_isar_feature(aa32_fpdp, s)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> We will shortly use these to test for VFPv2 and VFPv3 in different situations. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-8-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_fpshvec(const ARMISARegisters *id) return FIELD_EX32(id->mvfr0, MVFR0, FPSHVEC) > 0; } +static inline bool isar_feature_aa32_fpsp_v2(const ARMISARegisters *id) +{ + /* Return true if CPU supports single precision floating point, VFPv2 */ + return FIELD_EX32(id->mvfr0, MVFR0, FPSP) > 0; +} + +static inline bool isar_feature_aa32_fpsp_v3(const ARMISARegisters *id) +{ + /* Return true if CPU supports single precision floating point, VFPv3 */ + return FIELD_EX32(id->mvfr0, MVFR0, FPSP) >= 2; +} + static inline bool isar_feature_aa32_fpdp_v2(const ARMISARegisters *id) { /* Return true if CPU supports double precision floating point, VFPv2 */ return FIELD_EX32(id->mvfr0, MVFR0, FPDP) > 0; } +static inline bool isar_feature_aa32_fpdp_v3(const ARMISARegisters *id) +{ + /* Return true if CPU supports double precision floating point, VFPv3 */ + return FIELD_EX32(id->mvfr0, MVFR0, FPDP) >= 2; +} + /* * We always set the FP and SIMD FP16 fields to indicate identical * levels of support (assuming SIMD is implemented at all), so -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Shuffle the order of the checks so that we test the ISA before we test anything else, such as the register arguments. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-9-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/translate-vfp.inc.c | 144 ++++++++++++++++----------------- 1 file changed, 72 insertions(+), 72 deletions(-) diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -XXX,XX +XXX,XX @@ static bool trans_VSEL(DisasContext *s, arg_VSEL *a) return false; } - /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_simd_r32, s) && - ((a->vm | a->vn | a->vd) & 0x10)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist */ + if (dp && !dc_isar_feature(aa32_simd_r32, s) && + ((a->vm | a->vn | a->vd) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMINMAXNM(DisasContext *s, arg_VMINMAXNM *a) return false; } - /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_simd_r32, s) && - ((a->vm | a->vn | a->vd) & 0x10)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist */ + if (dp && !dc_isar_feature(aa32_simd_r32, s) && + ((a->vm | a->vn | a->vd) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINT(DisasContext *s, arg_VRINT *a) return false; } - /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_simd_r32, s) && - ((a->vm | a->vd) & 0x10)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist */ + if (dp && !dc_isar_feature(aa32_simd_r32, s) && + ((a->vm | a->vd) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT(DisasContext *s, arg_VCVT *a) return false; } - /* UNDEF accesses to D16-D31 if they don't exist */ - if (dp && !dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { + if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (dp && !dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist */ + if (dp && !dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool do_vfp_3op_dp(DisasContext *s, VFPGen3OpDPFn *fn, TCGv_i64 f0, f1, fd; TCGv_ptr fpst; - /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vn | vm) & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist */ + if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vn | vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool do_vfp_2op_dp(DisasContext *s, VFPGen2OpDPFn *fn, int vd, int vm) int veclen = s->vec_len; TCGv_i64 f0, fd; - /* UNDEF accesses to D16-D31 if they don't exist */ - if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vm) & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist */ + if (!dc_isar_feature(aa32_simd_r32, s) && ((vd | vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a) return false; } - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && - ((a->vd | a->vn | a->vm) & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_simd_r32, s) && + ((a->vd | a->vn | a->vm) & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_imm_dp(DisasContext *s, arg_VMOV_imm_dp *a) vd = a->vd; - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && (vd & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_simd_r32, s) && (vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCMP_dp(DisasContext *s, arg_VCMP_dp *a) { TCGv_i64 vd, vm; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + /* Vm/M bits must be zero for the Z variant */ if (a->z && a->vm != 0) { return false; @@ -XXX,XX +XXX,XX @@ static bool trans_VCMP_dp(DisasContext *s, arg_VCMP_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f64_f16(DisasContext *s, arg_VCVT_f64_f16 *a) TCGv_i32 tmp; TCGv_i64 vd; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_fp16_dpconv, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f64_f16(DisasContext *s, arg_VCVT_f64_f16 *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f16_f64(DisasContext *s, arg_VCVT_f16_f64 *a) TCGv_i32 tmp; TCGv_i64 vm; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_fp16_dpconv, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_f16_f64(DisasContext *s, arg_VCVT_f16_f64 *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTR_dp(DisasContext *s, arg_VRINTR_dp *a) TCGv_ptr fpst; TCGv_i64 tmp; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_vrint, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTR_dp(DisasContext *s, arg_VRINTR_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTZ_dp(DisasContext *s, arg_VRINTZ_dp *a) TCGv_i64 tmp; TCGv_i32 tcg_rmode; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_vrint, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTZ_dp(DisasContext *s, arg_VRINTZ_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTX_dp(DisasContext *s, arg_VRINTX_dp *a) TCGv_ptr fpst; TCGv_i64 tmp; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_vrint, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VRINTX_dp(DisasContext *s, arg_VRINTX_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_sp(DisasContext *s, arg_VCVT_sp *a) TCGv_i64 vd; TCGv_i32 vm; - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_dp(DisasContext *s, arg_VCVT_dp *a) TCGv_i64 vm; TCGv_i32 vd; - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_int_dp(DisasContext *s, arg_VCVT_int_dp *a) TCGv_i64 vd; TCGv_ptr fpst; - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VJCVT(DisasContext *s, arg_VJCVT *a) TCGv_i32 vd; TCGv_i64 vm; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_jscvt, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VJCVT(DisasContext *s, arg_VJCVT *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a) TCGv_ptr fpst; int frac_bits; + if (!dc_isar_feature(aa32_fpdp_v2, s)) { + return false; + } + if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a) return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_dp_int(DisasContext *s, arg_VCVT_dp_int *a) TCGv_i64 vm; TCGv_ptr fpst; - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { + if (!dc_isar_feature(aa32_fpdp_v2, s)) { return false; } - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { return false; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Sort this check to the start of a trans_* function. Merge this with any existing test for fpdp_v2. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-10-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/translate-vfp.inc.c | 24 ++++++++---------------- 1 file changed, 8 insertions(+), 16 deletions(-) diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -XXX,XX +XXX,XX @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a) * VFPv2 allows access to FPSID from userspace; VFPv3 restricts * all ID registers to privileged access only. */ - if (IS_USER(s) && arm_dc_feature(s, ARM_FEATURE_VFP3)) { + if (IS_USER(s) && dc_isar_feature(aa32_fpsp_v3, s)) { return false; } ignore_vfp_enabled = true; @@ -XXX,XX +XXX,XX @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a) case ARM_VFP_FPINST: case ARM_VFP_FPINST2: /* Not present in VFPv3 */ - if (IS_USER(s) || arm_dc_feature(s, ARM_FEATURE_VFP3)) { + if (IS_USER(s) || dc_isar_feature(aa32_fpsp_v3, s)) { return false; } break; @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_imm_sp(DisasContext *s, arg_VMOV_imm_sp *a) vd = a->vd; - if (!dc_isar_feature(aa32_fpshvec, s) && - (veclen != 0 || s->vec_stride != 0)) { + if (!dc_isar_feature(aa32_fpsp_v3, s)) { return false; } - if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) { + if (!dc_isar_feature(aa32_fpshvec, s) && + (veclen != 0 || s->vec_stride != 0)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_imm_dp(DisasContext *s, arg_VMOV_imm_dp *a) vd = a->vd; - if (!dc_isar_feature(aa32_fpdp_v2, s)) { + if (!dc_isar_feature(aa32_fpdp_v3, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_imm_dp(DisasContext *s, arg_VMOV_imm_dp *a) return false; } - if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_fix_sp(DisasContext *s, arg_VCVT_fix_sp *a) TCGv_ptr fpst; int frac_bits; - if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) { + if (!dc_isar_feature(aa32_fpsp_v3, s)) { return false; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_fix_dp(DisasContext *s, arg_VCVT_fix_dp *a) TCGv_ptr fpst; int frac_bits; - if (!dc_isar_feature(aa32_fpdp_v2, s)) { - return false; - } - - if (!arm_dc_feature(s, ARM_FEATURE_VFP3)) { + if (!dc_isar_feature(aa32_fpdp_v3, s)) { return false; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> We will eventually remove the early ARM_FEATURE_VFP test, so add a proper test for each trans_* that does not already have another ISA test. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200214181547.21408-11-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/translate-vfp.inc.c | 78 ++++++++++++++++++++++++++++++---- 1 file changed, 69 insertions(+), 9 deletions(-) diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a) int pass; uint32_t offset; + /* SIZE == 2 is a VFP instruction; otherwise NEON. */ + if (a->size == 2 + ? !dc_isar_feature(aa32_fpsp_v2, s) + : !arm_dc_feature(s, ARM_FEATURE_NEON)) { + return false; + } + /* UNDEF accesses to D16-D31 if they don't exist */ if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) { return false; @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_to_gp(DisasContext *s, arg_VMOV_to_gp *a) pass = extract32(offset, 2, 1); offset = extract32(offset, 0, 2) * 8; - if (a->size != 2 && !arm_dc_feature(s, ARM_FEATURE_NEON)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_from_gp(DisasContext *s, arg_VMOV_from_gp *a) int pass; uint32_t offset; + /* SIZE == 2 is a VFP instruction; otherwise NEON. */ + if (a->size == 2 + ? !dc_isar_feature(aa32_fpsp_v2, s) + : !arm_dc_feature(s, ARM_FEATURE_NEON)) { + return false; + } + /* UNDEF accesses to D16-D31 if they don't exist */ if (!dc_isar_feature(aa32_simd_r32, s) && (a->vn & 0x10)) { return false; @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_from_gp(DisasContext *s, arg_VMOV_from_gp *a) pass = extract32(offset, 2, 1); offset = extract32(offset, 0, 2) * 8; - if (a->size != 2 && !arm_dc_feature(s, ARM_FEATURE_NEON)) { - return false; - } - if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a) TCGv_i32 tmp; bool ignore_vfp_enabled = false; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (arm_dc_feature(s, ARM_FEATURE_M)) { /* * The only M-profile VFP vmrs/vmsr sysreg is FPSCR. @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_single(DisasContext *s, arg_VMOV_single *a) { TCGv_i32 tmp; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_64_sp(DisasContext *s, arg_VMOV_64_sp *a) { TCGv_i32 tmp; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + /* * VMOV between two general-purpose registers and two single precision * floating point registers @@ -XXX,XX +XXX,XX @@ static bool trans_VMOV_64_dp(DisasContext *s, arg_VMOV_64_dp *a) /* * VMOV between two general-purpose registers and one double precision - * floating point register + * floating point register. Note that this does not require support + * for double precision arithmetic. */ + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } /* UNDEF accesses to D16-D31 if they don't exist */ if (!dc_isar_feature(aa32_simd_r32, s) && (a->vm & 0x10)) { @@ -XXX,XX +XXX,XX @@ static bool trans_VLDR_VSTR_sp(DisasContext *s, arg_VLDR_VSTR_sp *a) uint32_t offset; TCGv_i32 addr, tmp; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VLDR_VSTR_dp(DisasContext *s, arg_VLDR_VSTR_dp *a) TCGv_i32 addr; TCGv_i64 tmp; + /* Note that this does not require support for double arithmetic. */ + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + /* UNDEF accesses to D16-D31 if they don't exist */ if (!dc_isar_feature(aa32_simd_r32, s) && (a->vd & 0x10)) { return false; @@ -XXX,XX +XXX,XX @@ static bool trans_VLDM_VSTM_sp(DisasContext *s, arg_VLDM_VSTM_sp *a) TCGv_i32 addr, tmp; int i, n; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + n = a->imm; if (n == 0 || (a->vd + n) > 32) { @@ -XXX,XX +XXX,XX @@ static bool trans_VLDM_VSTM_dp(DisasContext *s, arg_VLDM_VSTM_dp *a) TCGv_i64 tmp; int i, n; + /* Note that this does not require support for double arithmetic. */ + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + n = a->imm >> 1; if (n == 0 || (a->vd + n) > 32 || n > 16) { @@ -XXX,XX +XXX,XX @@ static bool do_vfp_3op_sp(DisasContext *s, VFPGen3OpSPFn *fn, TCGv_i32 f0, f1, fd; TCGv_ptr fpst; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_fpshvec, s) && (veclen != 0 || s->vec_stride != 0)) { return false; @@ -XXX,XX +XXX,XX @@ static bool do_vfp_2op_sp(DisasContext *s, VFPGen2OpSPFn *fn, int vd, int vm) int veclen = s->vec_len; TCGv_i32 f0, fd; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (!dc_isar_feature(aa32_fpshvec, s) && (veclen != 0 || s->vec_stride != 0)) { return false; @@ -XXX,XX +XXX,XX @@ static bool trans_VCMP_sp(DisasContext *s, arg_VCMP_sp *a) { TCGv_i32 vd, vm; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + /* Vm/M bits must be zero for the Z variant */ if (a->z && a->vm != 0) { return false; @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_int_sp(DisasContext *s, arg_VCVT_int_sp *a) TCGv_i32 vm; TCGv_ptr fpst; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (!vfp_access_check(s)) { return true; } @@ -XXX,XX +XXX,XX @@ static bool trans_VCVT_sp_int(DisasContext *s, arg_VCVT_sp_int *a) TCGv_i32 vm; TCGv_ptr fpst; + if (!dc_isar_feature(aa32_fpsp_v2, s)) { + return false; + } + if (!vfp_access_check(s)) { return true; } -- 2.20.1