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Re: [Xen-devel] RE: question about hvm vhpet

To: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "Tian, Kevin" <kevin.tian@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] RE: question about hvm vhpet
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Fri, 21 Nov 2008 15:32:52 +0000
Cc: Dave Winchell <dwinchell@xxxxxxxxxxxxxxx>
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On 21/11/08 15:26, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

> Agreed.... at least unless/until Dave Winchell's hpet
> work gets resubmitted and accepted, hpet is not reliable
> as a timer for most guests.  And some OS's will
> always automatically choose hpet if it is enabled
> even, in some cases, if another clocksource was intended.
> 
> So off is better... but we should be aware that turning
> it off may provoke significant timer issues for some
> customers who upgrade.  The ideal solution is to get
> Dave's code in and leave the vhpet default to on, but
> I don't think Dave has had any time to work on this
> (and I haven't had time either).

vhpet is now based on vpt.c.

 -- Keir



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