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

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

details:   https://anonhg.NetBSD.org/src/rev/4686ff2de584
branches:  netbsd-7
changeset: 800376:4686ff2de584
user:      snj <snj%NetBSD.org@localhost>
date:      Wed Jan 03 20:17:40 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 3c7bdba63b1b -r 4686ff2de584 sys/arch/x86/x86/pmap.c
--- a/sys/arch/x86/x86/pmap.c   Wed Jan 03 20:06:06 2018 +0000
+++ b/sys/arch/x86/x86/pmap.c   Wed Jan 03 20:17:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.183.2.6 2017/03/06 03:27:19 snj Exp $       */
+/*     $NetBSD: pmap.c,v 1.183.2.7 2018/01/03 20:17:40 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 1.183.2.6 2017/03/06 03:27:19 snj Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.183.2.7 2018/01/03 20:17:40 snj Exp $");
 
 #include "opt_user_ldt.h"
 #include "opt_lockdebug.h"
@@ -1523,7 +1523,7 @@
                }
        }
 
-       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();