Re: [Qemu-devel] [PATCH 00/10] xen: pv domain support.

[Alexander Graf]

On 03.04.2009, at 22:24, Gerd Hoffmann wrote:

> Laurent Vivier wrote:
> > Le mercredi 01 avril 2009 à 23:39 +0200, Gerd Hoffmann a écrit :
> > > Hi,
> >
> > Hi,
> >
> > > It's been a while, but after a looooooooooooong time we've  
> > > (hopefully)
> > > finally sorted the merging issues with qemu-xen.  So here is a fresh
> > > version of the xen support for qemu patch series.  Short overview
> > > (individual patches have longer descriptions):
> >
> > Could you explain how to use it.
> >
> > Do you need a xend and xenstored running on the host ?
>
> Depends ;)
>
> Long term plan is to have three ways of supporting xen guests in qemu
> (pv only for now):

One idea I had for full virtualization in a Xen environment would be  
an PV vmenter/vmexit framework - either by implementing a completely  
new abstraction or simple traps for privileged operations like VMRUN.

That way we could have a kvm that talks to xen for the VM, rendering  
kvm useful on Xen dom0s, giving people the best of both worlds.

That was only one of the ideas that came up while talking to people  
why running kvm on xen isn't as easy as just recompiling :-). Would  
you think of such a thing as useful?

Alex