[src/netbsd-7-0]: src/sys/arch/x86/x86 Apply patch (requested by maxv in tick...

[snj <snj%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/44a390a6018d
branches:  netbsd-7-0
changeset: 801414:44a390a6018d
user:      snj <snj%NetBSD.org@localhost>
date:      Wed Jan 03 20:17:36 2018 +0000

description:
Apply patch (requested by maxv in ticket #1531):
amd64: Make the direct map non executable.

diffstat:

 sys/arch/x86/x86/pmap.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 2deb8a732765 -r 44a390a6018d sys/arch/x86/x86/pmap.c
--- a/sys/arch/x86/x86/pmap.c   Wed Jan 03 20:06:02 2018 +0000
+++ b/sys/arch/x86/x86/pmap.c   Wed Jan 03 20:17:36 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.183.2.2.2.3 2017/03/06 03:32:45 snj Exp $   */
+/*     $NetBSD: pmap.c,v 1.183.2.2.2.4 2018/01/03 20:17:36 snj Exp $   */
 
 /*-
  * Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
@@ -171,7 +171,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.183.2.2.2.3 2017/03/06 03:32:45 snj Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.183.2.2.2.4 2018/01/03 20:17:36 snj Exp $");
 
 #include "opt_user_ldt.h"
 #include "opt_lockdebug.h"
@@ -1517,7 +1517,7 @@
                }
        }
 
-       kpm->pm_pdir[PDIR_SLOT_DIRECT] = dmpdp | PG_KW | PG_V | PG_U;
+       kpm->pm_pdir[PDIR_SLOT_DIRECT] = dmpdp | PG_KW | PG_V | PG_U | pg_nx;
 
        tlbflush();