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Re: [Xen-devel] Re: [PATCH] [PVOPS] dom0 sync xen wallclock

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH] [PVOPS] dom0 sync xen wallclock
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 11 Feb 2010 08:03:26 +0000
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
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On 11/02/2010 00:47, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

> On 02/10/2010 04:06 PM, Keir Fraser wrote:
>> A Xen ABI for adjtime()-alike warping of Xen system time is something we
>> should add at some point, as that's the logical thing for ntp in dom0 to
>> affect, keeping the system's 'nanosecond ticker' in sync with the wider
>> world.
> 
> Hm.  I think it would be best to keep the ticker unchanged, but perhaps
> offer a mechanism so that dom0 can set separate offset and drift
> parameters which other domains can query to may system time to global
> time.  But I don't think even that is a very compelling idea.

Hm, well your suggestion is certainly less work. :-D

 -- Keir



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