This was fixed by stopping libvirt, removing all files on /var/cache/libvirt/qemu/capabilities/ and starting it again.
https://bugzilla.redhat.com/show_bug.cgi?id=1160318 Works for me in Ubuntu 14.10 ** Bug watch added: Red Hat Bugzilla #1160318 https://bugzilla.redhat.com/show_bug.cgi?id=1160318 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1346430 Title: Cannot find suitable CPU model for given data during VM starting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virt-manager/+bug/1346430/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
