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xen-devel
RE: [Xen-devel] common time reference between domU and dom0
> On 10/12/2010 08:23, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
wrote:
>
> >>
> >> System time, as exposed to guests by Xen, should be good enough.
> >>
> >
> > How is this exposed for HVM systems?
>
> Given all HVM guest time sources are trapped to the hypervisor,
including
> TSC, you may as well just use the HVMOP_get_time hypercall.
>
Is that a new call? I don't see it mentioned in 4.0-testing anywhere.
Is there a fallback if HVMOP_get_time doesn't exist?
James
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