[src/trunk]: src/sys/arch/amd64/amd64 CR4_PAE is always set to 1 under amd64, ...

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

details:   https://anonhg.NetBSD.org/src/rev/bdc4f0199d52
branches:  trunk
changeset: 767377:bdc4f0199d52
user:      jym <jym%NetBSD.org@localhost>
date:      Sun Jul 17 15:16:58 2011 +0000

description:
CR4_PAE is always set to 1 under amd64, so indicate that PAE mode is
enabled. Can be useful for 32-bits test runs on amd64 hosts.

diffstat:

 sys/arch/amd64/amd64/machdep.c |  10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diffs (31 lines):

diff -r d29027b24641 -r bdc4f0199d52 sys/arch/amd64/amd64/machdep.c
--- a/sys/arch/amd64/amd64/machdep.c    Sun Jul 17 12:47:38 2011 +0000
+++ b/sys/arch/amd64/amd64/machdep.c    Sun Jul 17 15:16:58 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: machdep.c,v 1.161 2011/06/12 03:35:37 rmind Exp $      */
+/*     $NetBSD: machdep.c,v 1.162 2011/07/17 15:16:58 jym Exp $        */
 
 /*-
  * Copyright (c) 1996, 1997, 1998, 2000, 2006, 2007, 2008
@@ -107,7 +107,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.161 2011/06/12 03:35:37 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.162 2011/07/17 15:16:58 jym Exp $");
 
 /* #define XENDEBUG_LOW  */
 
@@ -524,6 +524,12 @@
                       CTLTYPE_QUAD, "tsc_freq", NULL,
                       NULL, 0, &tsc_freq, 0,
                       CTL_MACHDEP, CTL_CREATE, CTL_EOL);
+       sysctl_createv(clog, 0, NULL, NULL,
+                      CTLFLAG_PERMANENT | CTLFLAG_IMMEDIATE,
+                      CTLTYPE_INT, "pae",
+                      SYSCTL_DESCR("Whether the kernel uses PAE"),
+                      NULL, 1, NULL, 0,
+                      CTL_MACHDEP, CTL_CREATE, CTL_EOL);
 }
 
 void