Messages in this thread | | | Subject | Re: [PATCH 03/15] KVM: SVM: Inject #UD on RDTSCP when it should be disabled in the guest | From | Paolo Bonzini <> | Date | Tue, 4 May 2021 23:57:27 +0200 |
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On 04/05/21 23:53, Sean Christopherson wrote: >> Does the right thing happen here if the vCPU is in guest mode when >> userspace decides to toggle the CPUID.80000001H:EDX.RDTSCP bit on or >> off? > I hate our terminology. By "guest mode", do you mean running the vCPU, or do > you specifically mean running in L2? >
Guest mode should mean L2.
(I wonder if we should have a capability that says "KVM_SET_CPUID2 can only be called prior to KVM_RUN").
Paolo
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