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Re: [Xen-devel] [PATCH v5 13/21] x86/domctl: Update PV domain cpumasks when setting cpuid policy



On Thu, Apr 07, 2016 at 12:57:18PM +0100, Andrew Cooper wrote:
> This allows PV domains with different featuresets to observe different values
> from a native cpuid instruction, on supporting hardware.
> 
> It is important to leak the host view of X2APIC, HTT and CMP_LEGACY through to
> guests, even though they could be hidden.  These flags affect how to interpret
> other cpuid leaves which are not maskable.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

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