Re: [Xen-devel] [PATCH v3] x86/time: Don't use virtual TSC if host and guest frequencies are equal

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 17.03.17 at 19:15, <boris.ostrovsky@xxxxxxxxxx> wrote:
> Commit 82713ec8d2 ("x86: use native RDTSC(P) execution when guest and
> host frequencies are the same") left out optimization for PV guests
> when host and guest run at the same frequency.
> 
> For such a case we should be able not to use virtual TSC regardless
> of whether we are runing before or after a migration (i.e. regardless
> of incarnation value).
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
> Suggested-by: Jan Beulich <JBeulich@xxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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