Both Launch instance modals have now the option to attach ports to an instance launch, which enables SR-IOV ports on launch instance.
Available on Mitaka launch.
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://rhn.redhat.com/errata/RHEA-2016-1597.html