Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20160328.0' into...

Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20160328.0' into staging

VFIO updates 2016-03-28

 - Use 128bit math to avoid asserts with IOMMU regions (Bandan Das)

# gpg: Signature made Mon 28 Mar 2016 23:16:52 BST using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <[email protected]>"
# gpg:                 aka "Alex Williamson <[email protected]>"
# gpg:                 aka "Alex Williamson <[email protected]>"
# gpg:                 aka "Alex Williamson <[email protected]>"

* remotes/awilliam/tags/vfio-update-20160328.0:
  vfio: convert to 128 bit arithmetic calculations when adding mem regions

Signed-off-by: Peter Maydell <[email protected]>