Re: [Xen-devel] [PATCH v2 2/3] x86 Test and expose CPUID faulting capabilities in /proc/cpuinfo

[Jan Beulich]

>>> On 15.09.16 at 12:05, <david.vrabel@xxxxxxxxxx> wrote:
> On 14/09/16 22:01, Kyle Huey wrote:
>> Xen advertises the underlying support for CPUID faulting but not does pass
>> through writes to the relevant MSR, nor does it virtualize it, so it does
>> not actually work. For now mask off the relevant bit on MSR_PLATFORM_INFO.
> 
> Could you clarify in the commit message that it is PV guests that are
> affected.

What makes you think HVM ones aren't?

Jan