Re: [RFC] Paravirt timer for KVM

Avi Kivity
2007-10-15T09:07:27Z

Gerd Hoffmann wrote:
>
>> 2) the TSC would have to be used as a clocksource. You don't know the
>> frequency which is the first problem with using the TSC but some systems
>> have a TSC that changes frequencies.
>>
>
> Also note the tsc may stop ticking if the CPU goes sleep in C3, which
> IMHO makes the tsc almost useless as clocksource for guests ...
>

But the host knows that, right? So it can update the guest's timebase?

--
error compiling committee.c: too many arguments to function