Messages in this thread | | | Date | Mon, 7 Aug 2023 09:03:12 +0200 | Subject | Re: [PATCH v5 11/19] KVM:VMX: Emulate read and write to CET MSRs | From | Paolo Bonzini <> |
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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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