On 05/29/2011 10:15 AM, Li, Xin wrote:
> > >
> > > > + else
> > > > + best->ebx&= ~(bit(X86_FEATURE_SMEP));
> > >
> > > Not needed - x86.c already masks unsupported features.
> >
> > Should KVM still support guest SMEP when host disables it thru nosmep?
>
> No. We treat nosmep as "no smep for the kernel and any guests". NX is
> treated in the same way.
Then we need to add logic to do_cpuid_ent to mask off leaf 7 features when host
disables it.
Yes.
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I have a truly marvellous patch that fixes the bug which this
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