Re: [PATCH 47/61] KVM: x86: Squash CPUID 0x2.0 insanity for modern CPUs

[Paolo Bonzini]

On 01/02/20 19:52, Sean Christopherson wrote:
> Although it's _extremely_ tempting to yank KVM's stateful code, leave it
> in for now but annotate all its code paths as "unlikely".  The code is
> relatively contained, and if by some miracle there is someone running KVM
> on a CPU with a stateful CPUID 0x2, more power to 'em.

I suppose the only way that could happen is with nested virtualization.
 I would just drop it.

Paolo