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[src/trunk]: src/sys/arch/xen/x86 Map the remaining pages as non-executable. ...



details:   https://anonhg.NetBSD.org/src/rev/1385c841a30a
branches:  trunk
changeset: 348651:1385c841a30a
user:      maxv <maxv%NetBSD.org@localhost>
date:      Tue Nov 01 12:00:21 2016 +0000

description:
Map the remaining pages as non-executable. Only text should have X.

diffstat:

 sys/arch/xen/x86/x86_xpmap.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (29 lines):

diff -r 70bc299dba54 -r 1385c841a30a sys/arch/xen/x86/x86_xpmap.c
--- a/sys/arch/xen/x86/x86_xpmap.c      Tue Nov 01 10:32:57 2016 +0000
+++ b/sys/arch/xen/x86/x86_xpmap.c      Tue Nov 01 12:00:21 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: x86_xpmap.c,v 1.61 2016/08/25 17:03:57 bouyer Exp $    */
+/*     $NetBSD: x86_xpmap.c,v 1.62 2016/11/01 12:00:21 maxv Exp $      */
 
 /*
  * Copyright (c) 2006 Mathieu Ropert <mro%adviseo.fr@localhost>
@@ -69,7 +69,7 @@
 
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: x86_xpmap.c,v 1.61 2016/08/25 17:03:57 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: x86_xpmap.c,v 1.62 2016/11/01 12:00:21 maxv Exp $");
 
 #include "opt_xen.h"
 #include "opt_ddb.h"
@@ -950,8 +950,8 @@
                                /* Map the kernel data+bss RW. */
                                pte[pl1_pi(page)] |= PG_RW | pg_nx;
                        } else {
-                               /* map page RW */
-                               pte[pl1_pi(page)] |= PG_RW;
+                               /* Map the page RW. */
+                               pte[pl1_pi(page)] |= PG_RW | pg_nx;
                        }
                                
                        if ((page  >= old_pgd && page < old_pgd + (old_count * PAGE_SIZE))



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