On 01/13/2011 01:59 PM, Eric Blake wrote:
This patch makes it possible to force whether or not vhost-net is used with a bit of XML. Adding a <driver> element to the interface XML, eg:
<interface type="network"> <model type="virtio"/> <driver name="vhost"/>
will force use of vhost-net (if it's not available, the domain will fail to start). if driver name="qemu", vhost-net will not be used even if it is available.
If there is no <driver name='xxx'/> in the config, libvirt will revert to the pre-existing automatic behavior - use vhost-net if it's available, and userland backend if vhost-net isn't available.
Oh, and also - sorry Eric, but I didn't have the brain cells left tonight to add this new bit to the documentation, and I really want to get the patch up/in now, so that will have to wait for a followup next week :-)
I'll have to live with that, but come closer to the 0.8.8 release date, watch for the reminders if you haven't followed through :)
One of those friendly reminders, since I was looking for that documentation today and missed having it. -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org