[PULL 0/3] target-arm queue
[Qemu-devel] [PULL v2 00/44] target-arm queue
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Only thing for Arm for rc1 is RTH's fix for the KVM SVE probe code.
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v1->v2 changes: drop the "convert FEATURE_THUMB2EE" patch as
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it broke compilation on arm hosts (conversion of KVM related
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code had been forgotten)
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thanks
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-- PMM
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-- PMM
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The following changes since commit 4e06b3fc1b5e1ec03f22190eabe56891dc9c2236:
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The following changes since commit 13399aad4fa87b2878c49d02a5d3bafa6c966ba3:
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Merge tag 'pull-hex-20220731' of https://github.com/quic/qemu into staging (2022-07-31 21:38:54 -0700)
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-10-22' into staging (2018-10-23 17:20:23 +0100)
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are available in the Git repository at:
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are available in the Git repository at:
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https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20220801
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https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20181024
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for you to fetch changes up to 5265d24c981dfdda8d29b44f7e84a514da75eedc:
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for you to fetch changes up to 93f379b0c43617b1361f742f261479eaed4959cb:
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target/arm: Move sve probe inside kvm >= 4.15 branch (2022-08-01 16:21:18 +0100)
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target/arm: Only flush tlb if ASID changes (2018-10-24 07:51:37 +0100)
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----------------------------------------------------------------
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----------------------------------------------------------------
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target-arm queue:
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target-arm queue:
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* Fix KVM SVE ID register probe code
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* ssi-sd: Make devices picking up backends unavailable with -device
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* Add support for VCPU event states
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* Move towards making ID registers the source of truth for
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whether a guest CPU implements a feature, rather than having
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parallel ID registers and feature bit flags
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* Implement various HCR hypervisor trap/config bits
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* Get IL bit correct for v7 syndrome values
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* Report correct syndrome for FP/SIMD traps to Hyp mode
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* hw/arm/boot: Increase compliance with kernel arm64 boot protocol
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* Refactor A32 Neon to use generic vector infrastructure
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* Fix a bug in A32 VLD2 "(multiple 2-element structures)" insn
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* net: cadence_gem: Report features correctly in ID register
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* Avoid some unnecessary TLB flushes on TTBR register writes
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----------------------------------------------------------------
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----------------------------------------------------------------
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Richard Henderson (3):
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Dongjiu Geng (1):
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target/arm: Use kvm_arm_sve_supported in kvm_arm_get_host_cpu_features
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target/arm: Add support for VCPU event states
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target/arm: Set KVM_ARM_VCPU_SVE while probing the host
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target/arm: Move sve probe inside kvm >= 4.15 branch
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target/arm/kvm64.c | 45 ++++++++++++++++++++++-----------------------
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Edgar E. Iglesias (2):
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1 file changed, 22 insertions(+), 23 deletions(-)
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net: cadence_gem: Announce availability of priority queues
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net: cadence_gem: Announce 64bit addressing support
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Markus Armbruster (1):
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ssi-sd: Make devices picking up backends unavailable with -device
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Peter Maydell (10):
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target/arm: Improve debug logging of AArch32 exception return
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target/arm: Make switch_mode() file-local
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target/arm: Implement HCR.FB
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target/arm: Implement HCR.DC
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target/arm: ISR_EL1 bits track virtual interrupts if IMO/FMO set
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target/arm: Implement HCR.VI and VF
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target/arm: Implement HCR.PTW
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target/arm: New utility function to extract EC from syndrome
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target/arm: Get IL bit correct for v7 syndrome values
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target/arm: Report correct syndrome for FP/SIMD traps to Hyp mode
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Richard Henderson (29):
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target/arm: Move some system registers into a substructure
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target/arm: V8M should not imply V7VE
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target/arm: Convert v8 extensions from feature bits to isar tests
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target/arm: Convert division from feature bits to isar0 tests
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target/arm: Convert jazelle from feature bit to isar1 test
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target/arm: Convert sve from feature bit to aa64pfr0 test
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target/arm: Convert v8.2-fp16 from feature bit to aa64pfr0 test
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target/arm: Hoist address increment for vector memory ops
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target/arm: Don't call tcg_clear_temp_count
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target/arm: Use tcg_gen_gvec_dup_i64 for LD[1-4]R
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target/arm: Promote consecutive memory ops for aa64
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target/arm: Mark some arrays const
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target/arm: Use gvec for NEON VDUP
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target/arm: Use gvec for NEON VMOV, VMVN, VBIC & VORR (immediate)
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target/arm: Use gvec for NEON_3R_LOGIC insns
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target/arm: Use gvec for NEON_3R_VADD_VSUB insns
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target/arm: Use gvec for NEON_2RM_VMN, NEON_2RM_VNEG
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target/arm: Use gvec for NEON_3R_VMUL
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target/arm: Use gvec for VSHR, VSHL
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target/arm: Use gvec for VSRA
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target/arm: Use gvec for VSRI, VSLI
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target/arm: Use gvec for NEON_3R_VML
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target/arm: Use gvec for NEON_3R_VTST_VCEQ, NEON_3R_VCGT, NEON_3R_VCGE
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target/arm: Use gvec for NEON VLD all lanes
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target/arm: Reorg NEON VLD/VST all elements
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target/arm: Promote consecutive memory ops for aa32
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target/arm: Reorg NEON VLD/VST single element to one lane
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target/arm: Remove writefn from TTBR0_EL3
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target/arm: Only flush tlb if ASID changes
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Stewart Hildebrand (1):
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hw/arm/boot: Increase compliance with kernel arm64 boot protocol
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target/arm/cpu.h | 221 ++++++-
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target/arm/internals.h | 45 +-
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target/arm/kvm_arm.h | 24 +
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target/arm/translate.h | 21 +
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hw/arm/boot.c | 18 +
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hw/intc/armv7m_nvic.c | 12 +-
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hw/net/cadence_gem.c | 9 +-
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hw/sd/ssi-sd.c | 2 +
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linux-user/aarch64/signal.c | 4 +-
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linux-user/elfload.c | 58 +-
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linux-user/syscall.c | 10 +-
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target/arm/cpu.c | 238 +++----
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target/arm/cpu64.c | 148 +++--
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target/arm/helper.c | 395 ++++++++----
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target/arm/kvm.c | 60 ++
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target/arm/kvm32.c | 13 +
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target/arm/kvm64.c | 15 +-
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target/arm/machine.c | 25 +-
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target/arm/op_helper.c | 2 +-
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target/arm/translate-a64.c | 715 ++++-----------------
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target/arm/translate.c | 1451 ++++++++++++++++++++++++++++---------------
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21 files changed, 2013 insertions(+), 1473 deletions(-)
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diff view generated by jsdifflib
[PULL 1/3] target/arm: Use kvm_arm_sve_supported in kvm_arm_get_host_cpu_features
Deleted patch
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From: Richard Henderson <richard.henderson@linaro.org>
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1
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Indication for support for SVE will not depend on whether we
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perform the query on the main kvm_state or the temp vcpu.
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Message-id: 20220726045828.53697-2-richard.henderson@linaro.org
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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---
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target/arm/kvm64.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
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index XXXXXXX..XXXXXXX 100644
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--- a/target/arm/kvm64.c
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+++ b/target/arm/kvm64.c
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@@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
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}
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}
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- sve_supported = ioctl(fdarray[0], KVM_CHECK_EXTENSION, KVM_CAP_ARM_SVE) > 0;
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+ sve_supported = kvm_arm_sve_supported();
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/* Add feature bits that can't appear until after VCPU init. */
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if (sve_supported) {
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--
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2.25.1
diff view generated by jsdifflib
[PULL 2/3] target/arm: Set KVM_ARM_VCPU_SVE while probing the host
Deleted patch
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From: Richard Henderson <richard.henderson@linaro.org>
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Because we weren't setting this flag, our probe of ID_AA64ZFR0
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was always returning zero. This also obviates the adjustment
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of ID_AA64PFR0, which had sanitized the SVE field.
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The effects of the bug are not visible, because the only thing that
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ID_AA64ZFR0 is used for within qemu at present is tcg translation.
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The other tests for SVE within KVM are via ID_AA64PFR0.SVE.
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Reported-by: Zenghui Yu <yuzenghui@huawei.com>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Message-id: 20220726045828.53697-3-richard.henderson@linaro.org
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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---
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target/arm/kvm64.c | 27 +++++++++++++--------------
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1 file changed, 13 insertions(+), 14 deletions(-)
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diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
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index XXXXXXX..XXXXXXX 100644
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--- a/target/arm/kvm64.c
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+++ b/target/arm/kvm64.c
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@@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
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bool sve_supported;
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bool pmu_supported = false;
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uint64_t features = 0;
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- uint64_t t;
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int err;
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/* Old kernels may not know about the PREFERRED_TARGET ioctl: however
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@@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
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struct kvm_vcpu_init init = { .target = -1, };
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/*
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- * Ask for Pointer Authentication if supported. We can't play the
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- * SVE trick of synthesising the ID reg as KVM won't tell us
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- * whether we have the architected or IMPDEF version of PAuth, so
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- * we have to use the actual ID regs.
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+ * Ask for SVE if supported, so that we can query ID_AA64ZFR0,
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+ * which is otherwise RAZ.
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+ */
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+ sve_supported = kvm_arm_sve_supported();
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+ if (sve_supported) {
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+ init.features[0] |= 1 << KVM_ARM_VCPU_SVE;
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+ }
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+
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+ /*
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+ * Ask for Pointer Authentication if supported, so that we get
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+ * the unsanitized field values for AA64ISAR1_EL1.
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*/
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if (kvm_arm_pauth_supported()) {
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init.features[0] |= (1 << KVM_ARM_VCPU_PTRAUTH_ADDRESS |
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@@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
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}
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}
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- sve_supported = kvm_arm_sve_supported();
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-
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- /* Add feature bits that can't appear until after VCPU init. */
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if (sve_supported) {
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- t = ahcf->isar.id_aa64pfr0;
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- t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
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- ahcf->isar.id_aa64pfr0 = t;
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-
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/*
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* There is a range of kernels between kernel commit 73433762fcae
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* and f81cb2c3ad41 which have a bug where the kernel doesn't expose
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* SYS_ID_AA64ZFR0_EL1 via the ONE_REG API unless the VM has enabled
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- * SVE support, so we only read it here, rather than together with all
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- * the other ID registers earlier.
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+ * SVE support, which resulted in an error rather than RAZ.
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+ * So only read the register if we set KVM_ARM_VCPU_SVE above.
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*/
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err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64zfr0,
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ARM64_SYS_REG(3, 0, 0, 4, 4));
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--
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2.25.1
diff view generated by jsdifflib
[PULL 3/3] target/arm: Move sve probe inside kvm >= 4.15 branch
Deleted patch
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From: Richard Henderson <richard.henderson@linaro.org>
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1
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The test for the IF block indicates no ID registers are exposed, much
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less host support for SVE. Move the SVE probe into the ELSE block.
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Message-id: 20220726045828.53697-4-richard.henderson@linaro.org
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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---
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target/arm/kvm64.c | 22 +++++++++++-----------
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1 file changed, 11 insertions(+), 11 deletions(-)
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diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
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index XXXXXXX..XXXXXXX 100644
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--- a/target/arm/kvm64.c
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+++ b/target/arm/kvm64.c
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@@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
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err |= read_sys_reg64(fdarray[2], &ahcf->isar.reset_pmcr_el0,
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ARM64_SYS_REG(3, 3, 9, 12, 0));
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}
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- }
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- if (sve_supported) {
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- /*
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- * There is a range of kernels between kernel commit 73433762fcae
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- * and f81cb2c3ad41 which have a bug where the kernel doesn't expose
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- * SYS_ID_AA64ZFR0_EL1 via the ONE_REG API unless the VM has enabled
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- * SVE support, which resulted in an error rather than RAZ.
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- * So only read the register if we set KVM_ARM_VCPU_SVE above.
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- */
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- err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64zfr0,
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- ARM64_SYS_REG(3, 0, 0, 4, 4));
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+ if (sve_supported) {
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+ /*
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+ * There is a range of kernels between kernel commit 73433762fcae
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+ * and f81cb2c3ad41 which have a bug where the kernel doesn't
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+ * expose SYS_ID_AA64ZFR0_EL1 via the ONE_REG API unless the VM has
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+ * enabled SVE support, which resulted in an error rather than RAZ.
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+ * So only read the register if we set KVM_ARM_VCPU_SVE above.
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+ */
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+ err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64zfr0,
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+ ARM64_SYS_REG(3, 0, 0, 4, 4));
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+ }
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}
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kvm_arm_destroy_scratch_host_vcpu(fdarray);
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--
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2.25.1
diff view generated by jsdifflib

Patchew 2.1-devel-b67e4c2

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