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
