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SubjectRe: [PATCH 3/3] KVM: selftests: Test writing PERF_CAPABILITIES after KVM_RUN is rejected
On Fri, Aug 05, 2022, Like Xu wrote:
> From: Like Xu <likexu@tencent.com>
>
> KVM should also disallow changing the feature MSR PERF_CAPABILITIES after
> KVM_RUN to prevent unexpected behavior. Implement run_vcpu() in a separate
> thread approach and opportunistically rearrange test cases.
>
> Signed-off-by: Like Xu <likexu@tencent.com>
> ---
> .../selftests/kvm/x86_64/vmx_pmu_caps_test.c | 49 +++++++++++++------

Rather than add a one-off PERF_CAPABILITIES test, I would rather we rename and
extend get_msr_index_features, e.g. call it feature_msrs_test and then have it
test all feature MSRs.

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