Re: [Xen-devel] XCP Windows PV Driver Problem

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Nov 19, 2009 at 01:54:33PM -0500, Keith Coleman wrote:
> On Thu, Nov 19, 2009 at 11:51 AM, Paul Durrant <paul.durrant@xxxxxxxxxx> 
> wrote:
> > Pasi Kärkkäinen wrote:
> >>
> >> So I guess this means the normal Xen 3.4.x and xen-unstable toolstacks
> >> should be patched to allow these XCP Windows PV drivers to be used?
> >
> > That would certainly be helpful.
> >
> 
> The XCP Windows PV drivers are closed source so we are completely
> reliant on citrix fixing bugs, etc in a timely fashion. The GPLPV
> Windows drivers are working quite well on xen 3.4.2 so I'm less
> interested in the XCP ones at the moment.
> 
> About two weeks ago I created a patch to allow the XCP winpv drivers
> to run on xen 3.4.1. I didn't test live migration but save and restore
> mostly worked. On restore the windows clock was reset to 1970, which
> is presumably related to the PV drivers trying to trigger an ntp
> update. At the moment I prefer adding functionality to the GPLPV
> drivers rather than bending xen/tools around closed source drivers
> that may not be maintained.
> 

I agree. It's better to develop GPLPV drivers. Then again it's good to
have other option to bechmark and test against/with :)

> I will see if my current patch applies cleanly to 3.4.2 then consider
> submitting as it's unobtrusive.
> 

Yep. Please do that :)

-- Pasi


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