K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2019-10-16T22:12:34.355826Z
K 7
svn:log
V 431
Introduce pmap_change_prot() for amd64.

This updates the protection attributes of subranges of the kernel map.
Unlike pmap_protect(), which is typically used for user mappings,
pmap_change_prot() does not perform lazy upgrades of protections.
pmap_change_prot() also updates the aliasing range of the direct map.

Reviewed by:	kib
MFC after:	1 month
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D21758

END