Re: [PATCH] KVM: SEV: Fix handling of EFER_LMA bit when SEV-ES is enabled

[Sean Christopherson]

On Fri, Dec 08, 2023, Paolo Bonzini wrote:
> On Wed, Dec 6, 2023 at 4:28 PM Sean Christopherson <seanjc@xxxxxxxxxx> wrote:
> > So my very strong preference is to first skip the kvm_is_valid_sregs() check
> 
> No, please don't. If you want to add a quirk that, when disabled,
> causes all guest state get/set ioctls to fail, go ahead. But invalid
> processor state remains invalid, and should be rejected, even when KVM
> won't consume it.

Ugh, true, KVM should still reject garbage.