Re: [Xen-devel] [PATCH V9 5/5] x86/hvm: pkeys, add pkeys support for cpuid handling

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 03.02.16 at 15:12, <huaitong.han@xxxxxxxxx> wrote:
> This patch adds pkeys support for cpuid handing.
> 
> Pkeys hardware support is CPUID.7.0.ECX[3]:PKU. software support is
> CPUID.7.0.ECX[4]:OSPKE and it reflects the support setting of CR4.PKE.
> 
> X86_FEATURE_OSXSAVE depends on guest X86_FEATURE_XSAVE, but cpu_has_xsave
> function reflects hypervisor X86_FEATURE_XSAVE, it is fixed too.
> 
> Signed-off-by: Huaitong Han <huaitong.han@xxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>


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