Re: [PATCH v8 0/7] KVM: arm64: PMU: Use multiple host PMUs
Oliver Upton <[email protected]>
| Newsgroups | org.kernel.vger.linux-hardening,dev.linux.lists.kvmarm,org.infradead.lists.linux-arm-kernel,org.kernel.vger.kvm,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel,org.kernel.vger.linux-kselftest |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Jul 06, 2026 at 07:03:23PM +0900, Akihiko Odaki wrote: > Akihiko Odaki (7): > KVM: arm64: Disallow vPMU when pPMUs do not cover all CPUs > KVM: arm64: PMU: Protect the list of PMUs with RCU > KVM: arm64: PMU: Pass the pPMU to kvm_map_pmu_event() > KVM: arm64: PMU: Pass the target CPU to kvm_pmu_probe_armpmu() > KVM: arm64: PMU: Implement fixed-counters-only emulation > KVM: arm64: PMU: Introduce FIXED_COUNTERS_ONLY > KVM: arm64: selftests: Test PMU_V3_FIXED_COUNTERS_ONLY Thanks for respinning the series, I left some comments. I'd really like to get this feature picked up, hope you have cycles to work on it soon. FWIW, we're considering adding a new vCPU feature flag to deprecate all the ugliness of the old PMUv3 UAPI. I'm tempted to say that the FIXED_COUNTERS_ONLY feature is conditioned on the new feature flag... https://lore.kernel.org/kvmarm/[email protected]/ Thanks, Oliver