andrew afff8d4f96 Fix arm64 superpages bugs in pmap_enter:
* Pass the correct virtual address when demoting a superpage
 * Use the correct l3 table after demoting a superpage
 * Remove an invalid KASSERT hit demoting then promoting a superpage [1]

With this it is believed that  superpages on arm64 is stable.

Reported by:	[1] cognet
Obtained from:	ABT Systems Ltd
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2016-09-01 10:26:06 +00:00
..
2016-08-25 13:59:19 +00:00