K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2019-06-12T20:38:49.165503Z
K 7
svn:log
V 856
Change pmap_demote_l2_locked() so that it removes the superpage mapping on a
demotion failure.  Otherwise, some callers to pmap_demote_l2_locked(), such
as pmap_protect(), may leave an incorrect mapping in place on a demotion
failure.

Change pmap_demote_l2_locked() so that it handles addresses that are not
superpage aligned.  Some callers to pmap_demote_l2_locked(), such as
pmap_protect(), may not pass a superpage aligned address.

Change pmap_enter_l2() so that it correctly calls vm_page_free_pages_toq().
The arm64 pmap is updating the count of wired pages when freeing page table
pages, so pmap_enter_l2() should pass false to vm_page_free_pages_toq().

Optimize TLB invalidation in pmap_remove_l2().

Reviewed by:	kib, markj (an earlier version)
Discussed with:	andrew
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D20585

END