I'd like to request a string freeze exception for this review:
https://review.openstack.org/#/c/166130/
Justification:
This fix would enable the live-migration on the system z platform. This
platform (arch=s390x) doesn't currently support the CPU comparison but
is working on patch sets in qemu to enable this [1]. With the patch set
above a customer would at least have the possibility to use the live-
migration feature with Kilo on system z.
[1] http://lists.gnu.org/archive/html/qemu-devel/2014-05/msg04296.html