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Re: [Xen-devel] PV-vNUMA issue: topology is misinterpreted by the guest

On 16/07/15 17:29, Jan Beulich wrote:
>>>> On 16.07.15 at 17:50, <boris.ostrovsky@xxxxxxxxxx> wrote:
>> Can't we set leaf 1's EBX[32:16] to 1?
> I don't think we should partially overwrite the relevant parts of
> CPUID output - either all or nothing (so that things at least
> remain consistent).

Also, there are no masking/override MSRs for that feature leaf on any
hardware I am aware of, and a PV guest using plain `cpuid` will not
observe any attempt of Xen's to control the value.


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