From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.linux.dev
Cc: Marc Zyngier <maz@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Mingwei Zhang <mizhang@google.com>,
Colton Lewis <coltonlewis@google.com>,
Raghavendra Rao Ananta <rananta@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH v2 00/14] KVM: arm64: Support FEAT_PMUv3 on Apple hardware
Date: Mon, 3 Feb 2025 10:30:57 -0800 [thread overview]
Message-ID: <20250203183111.191519-1-oliver.upton@linux.dev> (raw)
This series adds support for PMUv3 emulation on Apple hardware. See the
v1 cover letter for a more detailed explanation.
Tested on an M2 Pro Mac Mini w/ Debian + Windows guests. Also tested
using kvm-unit-tests, with a small test fix [*].
[*]: https://lore.kernel.org/kvmarm/20250203181026.159721-1-oliver.upton@linux.dev/
v1: https://lore.kernel.org/kvmarm/20241217212048.3709204-1-oliver.upton@linux.dev/
v1 -> v2:
- Rebase to 6.14-rc1
- Fix CONFIG_GUEST_PERF_EVENTS=n compilation error
- Enroll M1 parts for PMUv3 emulation (Janne)
- Collect Janne's Tested-by
Oliver Upton (14):
drivers/perf: apple_m1: Refactor event select/filter configuration
drivers/perf: apple_m1: Support host/guest event filtering
drivers/perf: apple_m1: Provide helper for mapping PMUv3 events
KVM: arm64: Compute PMCEID from arm_pmu's event bitmaps
KVM: arm64: Always support SW_INCR PMU event
KVM: arm64: Remap PMUv3 events onto hardware
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: 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/cpufeature.h | 28 +-----
arch/arm64/kernel/cpu_errata.c | 44 ++++++++
arch/arm64/kernel/cpufeature.c | 19 ++++
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 | 127 +++++++++++++++++-------
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 | 1 +
14 files changed, 276 insertions(+), 104 deletions(-)
base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
--
2.39.5
next reply other threads:[~2025-02-03 18:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-03 18:30 Oliver Upton [this message]
2025-02-03 18:30 ` [PATCH v2 01/14] drivers/perf: apple_m1: Refactor event select/filter configuration Oliver Upton
2025-02-19 16:22 ` Marc Zyngier
2025-02-03 18:30 ` [PATCH v2 02/14] drivers/perf: apple_m1: Support host/guest event filtering Oliver Upton
2025-02-03 18:31 ` [PATCH v2 03/14] drivers/perf: apple_m1: Provide helper for mapping PMUv3 events Oliver Upton
2025-02-19 16:37 ` Marc Zyngier
2025-02-03 18:31 ` [PATCH v2 04/14] KVM: arm64: Compute PMCEID from arm_pmu's event bitmaps Oliver Upton
2025-02-03 18:31 ` [PATCH v2 05/14] KVM: arm64: Always support SW_INCR PMU event Oliver Upton
2025-02-03 18:31 ` [PATCH v2 06/14] KVM: arm64: Remap PMUv3 events onto hardware Oliver Upton
2025-02-19 16:45 ` Marc Zyngier
2025-02-19 19:25 ` Oliver Upton
2025-02-03 18:31 ` [PATCH v2 07/14] KVM: arm64: Use a cpucap to determine if system supports FEAT_PMUv3 Oliver Upton
2025-02-19 17:44 ` Marc Zyngier
2025-02-19 19:22 ` Oliver Upton
2025-02-19 19:35 ` Marc Zyngier
2025-02-03 18:31 ` [PATCH v2 08/14] KVM: arm64: Drop kvm_arm_pmu_available static key Oliver Upton
2025-02-03 18:31 ` [PATCH v2 09/14] KVM: arm64: Use guard() to cleanup usage of arm_pmus_lock Oliver Upton
2025-02-03 18:31 ` [PATCH v2 10/14] KVM: arm64: Move PMUVer filtering into KVM code Oliver Upton
2025-02-19 18:17 ` Marc Zyngier
2025-02-03 18:31 ` [PATCH v2 11/14] KVM: arm64: Compute synthetic sysreg ESR for Apple PMUv3 traps Oliver Upton
2025-02-03 18:31 ` [PATCH v2 12/14] KVM: arm64: Advertise PMUv3 if IMPDEF traps are present Oliver Upton
2025-02-03 18:31 ` [PATCH v2 13/14] KVM: arm64: Provide 1 event counter on IMPDEF hardware Oliver Upton
2025-02-03 18:31 ` [PATCH v2 14/14] arm64: Enable IMP DEF PMUv3 traps on Apple M* Oliver Upton
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