RE: [Xen-users] Windows HVM - orderly shutdown

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: James Harper [mailto:james.harper@xxxxxxxxxxxxxxxx] 
> Sent: 05 June 2007 13:32
> To: Daniel P. Berrange; Petersson, Mats
> Cc: Schober Walter; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-users] Windows HVM - orderly shutdown
> 
> > 
> > On Mon, Jun 04, 2007 at 01:32:15PM +0200, Petersson, Mats wrote:
> > >
> > >
> > > > -----Original Message-----
> > > > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > > > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> > > > Schober Walter
> > > > Sent: 04 June 2007 12:14
> > > > To: xen-users@xxxxxxxxxxxxxxxxxxx
> > > > Cc: James Harper
> > > > Subject: RE: [Xen-users] Windows HVM - orderly shutdown
> > > >
> > > > Look into that was well:
> > > > http://forums.xensource.com/thread.jspa?messageID=2225
> > > > Seems to be a 3.2 feature.
> > >
> > > That's "Xen's commercial product" version 3.2, which uses a
> different
> > > version of Xen source-code than the general 3.x releases. So don't
> > > confuse 3.1.0 of Xen with the commercial 3.2 product - they don't
> use
> > > the same version numbering system.
> > >
> > > I'm not sure if there is a comparable feature in the Xen sources -
> it
> > > may require a para-virtual driver that is part of the Xen 
> commercial
> > > product.
> > 
> > Yes, it will require a paravirt driver in the guest. Since we're
> talking
> > windows here, there's no open source pv drivers available 
> anywhere :-(
> > Basically the driver will just need to monitor the 
> appropriate node in
> > xenstore to see when XenD marks it as wanting to shutdown.
> > 
> 
> Couldn't Xen just trigger a fake power button press via ACPI? Windows
> already has drivers for that.

Yes, if someone implements the interface from the XenStore/XenBus to
QEMU-DM and then from there to the guest. It's much easier to have a PV
driver that listens to XenBus, I think. 
> 
> James
> 
> 
> 
> 



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