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xen-devel
RE: [Xen-devel] RE: question about hvm vhpet
>From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
>Sent: Friday, November 21, 2008 5:03 PM
>On 21/11/08 08:10, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote:
>
>>> Then if config file for hvm domain has no explicit
>'hpet=0/1' option,
>>> will xend issue a hypercall to set vhpet to '0' or the
>latter will be
>>> left as '1'?
>>>
>>
>> It's the former. Anyway, let's keep code aligned with original
>> purpose.
>
>The hypervisor code is as it is for old saved guests which do
>not explicitly
>specify HPET. They will have been booted with HPET
>unconditionally enabled,
>and it must not disappear under their feet if they are
>restored on a newer
>hypervisor!
>
Thanks for pointing out reason.
Kevin
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