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Re: [Qemu-devel] [Xen-devel] [PATCH] Citrix PV Bus device

From: Pasi Kärkkäinen
Subject: Re: [Qemu-devel] [Xen-devel] [PATCH] Citrix PV Bus device
Date: Tue, 2 Jul 2013 13:54:00 +0300
User-agent: Mutt/1.5.20 (2009-06-14)

On Tue, Jul 02, 2013 at 11:48:46AM +0100, Ian Campbell wrote:
> On Tue, 2013-07-02 at 11:31 +0100, Paul Durrant wrote:
> > > > XS, XC and anyone else who chooses could carry a separate patch that
> > > > changes the default to 'install if there are no drivers', signalling
> > > > over xenstore, or ACPI, or a Windows domain policy, or whatever.
> > > 
> > > Right.
> > > 
> > 
> > Surely having a new device for the purposes of hosting Citrix PV
> > drivers is a cleaner option for opting in? Note that I'm not proposing
> > the new device displaces the existing platform device in any way.
> A dislike for having to coordinate guest internal and guest external
> configuration changes in this way has been expressed by several people.
> However if you only intend to support your drivers on XenServer (and it
> is starting to seem like your constraints may end up forcing this option
> upon you) then you can equally well carry that new device in your
> patches too and manage it however your PMs require.

It's also good to remember the Citrix XenServer Windows PV drivers are now 
and (more) easily usable on non-XenServer environments aswell.

I hope they'd work on upstream Xen aswell.

-- Pasi

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