On Thu, 26 Nov 2020 14:49:16 +0000, Alexandru Elisei wrote:
> When enabling the PMU in kvm_arm_pmu_v3_enable(), KVM returns early if the
> PMU flag created is false and skips any other checks. Because PMU emulation
> is gated only on the VCPU feature being set, this makes it possible for
> userspace to get away with setting the VCPU feature but not doing any
> initialization for the PMU. Fix it by returning an error when trying to run
> the VCPU if the PMU hasn't been initialized correctly.
>
> [...]
Applied to kvm-arm64/pmu-undef, thanks!
[1/1] KVM: arm64: Refuse to run VCPU if PMU is not initialized
commit: 9bbfa4b565379eeb2fb8fdbcc9979549ae0e48d9
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
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