Re: [RFC] Paravirt timer for KVM

Avi Kivity
2007-10-15T16:47:16Z

Hollis Blanchard wrote:
>>
>> I'd think there is no reason for virtual timer to be PIT like, which
>> is mostly due to historic reason.
>>
>> If we need to make it close to native timer device, HPET is much
>> better than PIT for virtual time to look like.
>>
>
> Fine, so why do we need PV time when we can emulate the HPET?
>

A pv timebase can require zero exits while any emulated timebase will
require at least one.

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