Backport the following three patches to RHOS-9: [1] libvirt: Allow to specify granular CPU feature flags: http://git.openstack.org/cgit/openstack/nova/commit/?id=56350b9 [2] libvirt: Make `cpu_model_extra_flags` case-insensitive for real: http://git.openstack.org/cgit/openstack/nova/commit/?id=8e438ed [3] libvirt: Lift the restriction of choices for `cpu_model_extra_flags`: http://git.openstack.org/cgit/openstack/nova/commit/?id=cc27a20
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:1682