| From: |
| Oliver Upton <oliver.upton-AT-linux.dev> |
| To: |
| kvmarm-AT-lists.linux.dev |
| Subject: |
| [PATCH v3 00/14] KVM: arm64: FEAT_PMUv3 on Apple hardware |
| Date: |
| Wed, 05 Mar 2025 12:26:27 -0800 |
| Message-ID: |
| <20250305202641.428114-1-oliver.upton@linux.dev> |
| Cc: |
| Marc Zyngier <maz-AT-kernel.org>, Joey Gouly <joey.gouly-AT-arm.com>, Suzuki K Poulose <suzuki.poulose-AT-arm.com>, Zenghui Yu <yuzenghui-AT-huawei.com>, Mingwei Zhang <mizhang-AT-google.com>, Colton Lewis <coltonlewis-AT-google.com>, Raghavendra Rao Ananta <rananta-AT-google.com>, Catalin Marinas <catalin.marinas-AT-arm.com>, Will Deacon <will-AT-kernel.org>, Mark Rutland <mark.rutland-AT-arm.com>, linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, Janne Grunau <j-AT-jannau.net>, Oliver Upton <oliver.upton-AT-linux.dev> |
| Archive-link: |
| Article |
Hopefully close to the last spin, this time addressing Marc's comments
on v2.
Full details found in the v1 cover letter.
v1: https://lore.kernel.org/kvmarm/20241217212048.3709204-1-o...
v2: https://lore.kernel.org/kvmarm/20250203183111.191519-1-ol...
v2 -> v3:
- Reorder and restructure patches to include map_pmuv3_event()
definition w/ KVM usage.
- Disallow events that lack a valid PMUv3 -> HW mapping
- Various minor fixes/typos
Oliver Upton (14):
drivers/perf: apple_m1: Refactor event select/filter configuration
drivers/perf: apple_m1: Support host/guest event filtering
KVM: arm64: Compute PMCEID from arm_pmu's event bitmaps
KVM: arm64: Always support SW_INCR PMU event
KVM: arm64: Use a cpucap to determine if system supports FEAT_PMUv3
KVM: arm64: Drop kvm_arm_pmu_available static key
KVM: arm64: Use guard() to cleanup usage of arm_pmus_lock
KVM: arm64: Move PMUVer filtering into KVM code
KVM: arm64: Compute synthetic sysreg ESR for Apple PMUv3 traps
KVM: arm64: Advertise PMUv3 if IMPDEF traps are present
KVM: arm64: Remap PMUv3 events onto hardware
drivers/perf: apple_m1: Provide helper for mapping PMUv3 events
KVM: arm64: Provide 1 event counter on IMPDEF hardware
arm64: Enable IMP DEF PMUv3 traps on Apple M*
arch/arm64/include/asm/apple_m1_pmu.h | 1 +
arch/arm64/include/asm/cpucaps.h | 2 +
arch/arm64/include/asm/cpufeature.h | 28 +----
arch/arm64/kernel/cpu_errata.c | 44 ++++++++
arch/arm64/kernel/cpufeature.c | 28 +++++
arch/arm64/kernel/image-vars.h | 5 -
arch/arm64/kvm/arm.c | 4 +-
arch/arm64/kvm/hyp/include/hyp/switch.h | 4 +-
arch/arm64/kvm/hyp/vhe/switch.c | 22 ++++
arch/arm64/kvm/pmu-emul.c | 138 +++++++++++++++++-------
arch/arm64/kvm/pmu.c | 10 +-
arch/arm64/tools/cpucaps | 2 +
drivers/perf/apple_m1_cpu_pmu.c | 101 +++++++++++++----
include/kvm/arm_pmu.h | 12 +--
include/linux/perf/arm_pmu.h | 4 +
15 files changed, 301 insertions(+), 104 deletions(-)
base-commit: 0ad2507d5d93f39619fc42372c347d6006b64319
--
2.39.5
