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SubjectRe: [PATCH v6 10/34] x86, x86/mm, x86/xen, olpc: Use __va() against just the physical address in cr3
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On 6/8/2017 3:51 PM, Boris Ostrovsky wrote:
>
>>
>>> What may be needed is making sure X86_FEATURE_SME is not set for PV
>>> guests.
>>
>> And that may be something that Xen will need to control through either
>> CPUID or MSR support for the PV guests.
>
>
> Only on newer versions of Xen. On earlier versions (2-3 years old) leaf
> 0x80000007 is passed to the guest unchanged. And so is MSR_K8_SYSCFG.

The SME feature is in leaf 0x8000001f, is that leaf passed to the guest
unchanged?

Thanks,
Tom

>
> -boris
>

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