Re: [PATCH v2 07/21] KVM: x86/pmu: Zero out LBR capabilities during PMU refresh

[Like Xu]

On 10/2/2023 8:31 am, Sean Christopherson wrote:
> Note, this is a very theoretical bug, there is no known use case where a
> VMM would deliberately enable the vPMU via KVM_SET_CPUID2, and then later
> disable the vPMU.

That's why we're getting more and more comfortable with selftests
and fuzz testing on KVM interfaces. So is there a test for this ?