svn commit: r304688 - head/sys/arm64/arm64

[Andrew Turner]

Author: andrew
Date: Tue Aug 23 16:20:56 2016
New Revision: 304688
URL: https://svnweb.freebsd.org/changeset/base/304688

Log:
  Map memory as read-only in pmap_enter_quick_locked as is done in other
  pmap implementations.
  
  Obtained from:	ABT Systems Ltd
  MFC after:	1 month
  Sponsored by:	The FreeBSD Foundation

Modified:
  head/sys/arm64/arm64/pmap.c

Modified: head/sys/arm64/arm64/pmap.c
==============================================================================
--- head/sys/arm64/arm64/pmap.c	Tue Aug 23 16:12:25 2016	(r304687)
+++ head/sys/arm64/arm64/pmap.c	Tue Aug 23 16:20:56 2016	(r304688)
@@ -2794,7 +2794,7 @@ pmap_enter_quick_locked(pmap_t pmap, vm_
 	pmap_resident_count_inc(pmap, 1);
 
 	pa = VM_PAGE_TO_PHYS(m) | ATTR_DEFAULT | ATTR_IDX(m->md.pv_memattr) |
-	    ATTR_AP(ATTR_AP_RW) | L3_PAGE;
+	    ATTR_AP(ATTR_AP_RO) | L3_PAGE;
 
 	/*
 	 * Now validate mapping with RO protection