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    SubjectRe: [PATCH v5 11/19] KVM:VMX: Emulate read and write to CET MSRs
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    On 8/5/23 00:21, Sean Christopherson wrote:
    > Oooh, the MSRs that don't exempt host_initiated are added to the list

    (are *not* added)

    > of MSRs to save/restore, i.e. KVM "silently" supports
    > MSR_AMD64_OSVW_ID_LENGTH and MSR_AMD64_OSVW_STATUS.
    >
    > And guest_pv_has() returns true unless userspace has opted in to
    > enforcement.

    Two different ways of having the same bug. The latter was introduced in
    the implementation of KVM_CAP_ENFORCE_PV_FEATURE_CPUID; it would become
    a problem if some selftests started using it.

    Paolo

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