[libvirt] How to config my VM to use KVM with libvirt?

[Daniel Veillard]

On Tue, Jul 21, 2009 at 05:28:27PM -0400, Jim Paris wrote:
> Daniel P. Berrange wrote:
> > On Tue, Jul 21, 2009 at 09:46:17AM -0400, Jim Paris wrote:
> > > Speaking of this, I've noticed that
> > > 
> > > <domain type='qemu'>
> > >   <os>
> > >     <type arch='i686' machine='pc'>hvm</type>
> > >   </os>
> > > </domain>
> > > 
> > > runs WITH kvm on an x86_64 system.  Is that intended?
> > 
> > No, its not intended !
> ...
> > I'm actually wondering why we bother with #1 at all. If the
> > binary has '-no-kvm' and the domain is 'qemu', then it should
> > be used no matter what arch.
> 
> Agreed.  Below is a patch which should fix the oversight (lightly
> tested).
> 
> However, this is going to be a user-visible change and may cause
> people to complain that their existing 32-bit domains are unexpectedly
> running with -no-kvm.  Is that OK?  Technically it's a misconfiguration.
> 
> For the record, I think we've already broken this area once when
> 0.6.2 came out -- previous to that, even my 64-bit VMs had domain type
> "qemu", and libvirt ran my specified kvm binary without -no-kvm.

  Okidoc, apllied and commited,

    thanks !

Daniel

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