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Re: [Xen-devel] [PATCH] [RFC] Building guests on monotonic Xen system ti

To: "dan.magenheimer@xxxxxxxxxx" <dan.magenheimer@xxxxxxxxxx>, "Xen-Devel (E-mail)" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] [RFC] Building guests on monotonic Xen system time
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 03 Jun 2008 22:10:46 +0100
Cc: Dave Winchell <dwinchell@xxxxxxxxxxxxxxx>
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On 3/6/08 20:47, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

>> I have a pretty clear vision of what I want now, so I will make the
>> necessary adjustments to the patch. Then we can go from there
> 
> I noticed you fixed a related bug (cset 17760), but haven't
> seen anything that changes timer_mode==0 back to non-monotonic.
> Is that still on your list, or do you want me to submit a
> patch for that?

I think it is correctly handled by my patch. The per-vcpu time offset is
only adjusted when timer_mode==0 and that is added into the result returned
by hvm_get_guest_time() outside of the domain lock or monotinicity checks.

 -- Keir



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