This allows a valid iommu placed immediately after memory to work, to be
recognized as after the last byte of memory and not overlapping it.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Acked-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>