On Wed, Mar 04, 2015 at 05:24:53PM +0000, Jiang, Yunhong wrote: > Daniel, thanks for your clarification. > > Another related question is, what will be the guest's real cpu model > is the cpu_model is None? This is about a reported regression at
The guest CPU will be unspecified - it will be some arbitrary hypervisor decided default which nova cannot know. > https://bugs.launchpad.net/nova/+bug/1082414 . When the > instance.vcpu_model.mode is None, we should compare the source/target > cpu model, as the suggestion from Tony, am I right? If CPU model is none, best we can do is compare the *host* CPU of the two hosts to make sure the host doesn't loose any features, as we have no way of knowing what features the guest is relying on. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev