[libvirt-users] Specifying the KVM binary to use with libvirt

Alexander Lyakas alex.bolshoy at gmail.com
Fri Mar 30 00:07:35 UTC 2012

Thanks, Eric!
That helps.


On Tue, Mar 27, 2012 at 11:11 PM, Eric Blake <eblake at redhat.com> wrote:
> On 03/27/2012 12:42 PM, Alexander Lyakas wrote:
>> Greetings everybody,
>> I am running stock ubuntu-natty with kernel 2.6.38-8, KVM 0.14.0 and
>> libvirt 0.8.8. I am spawning virtual machines with libvirt.
>> I would like to test a new KVM version built aside without installing
>> it over existing KVM. Is there a way to tell libvirt which KVM binary
>> to pick up?
>> I've been searching and saw that QEMU driver looks in /usr/bin for KVM
>> executable. Is there a way to adjust that?
> If you modify the guest XML, the /domain/drivers/emulator XPath element
> can set the path to the KVM executable you want to use for that domain
> (libvirt fills in that element automatically with the kvm it found by
> default if you didn't provide it, but by modifying the XML, you can
> change the path to use on the next boot of the domain).
> --
> Eric Blake   eblake at redhat.com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org

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