Messages in this thread | | | Date | Mon, 22 Aug 2022 16:13:15 +0000 | From | Sean Christopherson <> | Subject | Re: [PATCH v5 03/26] x86/hyperv: Update 'struct hv_enlightened_vmcs' definition |
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On Mon, Aug 22, 2022, Vitaly Kuznetsov wrote: > So I reached out to Microsoft and their answer was that for all these new > eVMCS fields (including *PerfGlobalCtrl) observing architectural VMX > MSRs should be enough. *PerfGlobalCtrl case is special because of Win11 > bug (if we expose the feature in VMX feature MSRs but don't set > CPUID.0x4000000A.EBX BIT(0) it just doesn't boot).
Does this mean that KVM-on-HyperV needs to avoid using the PERF_GLOBAL_CTRL fields when the bit is not set?
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