Re: [Xen-devel] [Patch] Fix the slow wall clock time issue in x64 SMP Vista

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 10/1/07 11:53, "Cui, Dexuan" <dexuan.cui@xxxxxxxxx> wrote:

> 1) I made the change mainly for timer1 of HPET. Actually I don't know exactly
> how x64 SMP Vista uses HPET's timer1 to adjust the wall clock time; but
> without the patch, HPET's timer1 can generate and inject interrupts with a
> frequency of 20KHz or so! and the wall clock time would become slow.

I cannot see the logic behind the change though. If the guest has set up a
timeout, and the timeout is in the past, it makes sense to deliver
immediately.

 -- Keir


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