Re: [PATCH] KVM: nVMX: vmcs12 revision_id is always VMCS12_REVISION even when copied from eVMCS

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On 13/11/18 17:37, Vitaly Kuznetsov wrote:
> I was wondering how evmcs selftest was passing before this but then I
> remembered the Hyper-V bug (which puts VMCS revision from
> IA32_VMX_BASIC_MSR - where we have VMCS12_REVISION and not
> KVM_EVMCS_VERSION) so 'evmcs->revision_id' in this context is actually
> VMCS12_REVISION and there's no change post-patch.
> 
> We, however, will need to fix the selftest after we start allowing
> KVM_EVMCS_VERSION as it currently mocks erroneous Hyper-V behavior :-)

Is this a Hyper-V bug, or a TLFS mistake?

Queuing the patch, anyway.  Thanks!

Paolo



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