Messages in this thread | | | Date | Wed, 5 Jan 2022 10:10:54 +0100 | Subject | Re: [PATCH 2/2] KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN | From | Paolo Bonzini <> |
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On 1/3/22 13:56, Vitaly Kuznetsov wrote: > 'allowlist' of things which can change (and put > *APICids there) and only fail KVM_SET_CPUID{,2} when we see something > else changing.
We could also go the other way and only deny changes that result in changed CPU caps. That should be easier to implement since we have already a mapping from CPU capability words to CPUID leaves and registers.
Paolo
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