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[src/trunk]: src/sys/arch/x86/x86 allow building without direct-map support i...
details: https://anonhg.NetBSD.org/src/rev/160c4a21c926
branches: trunk
changeset: 771916:160c4a21c926
user: chs <chs%NetBSD.org@localhost>
date: Thu Dec 08 15:35:34 2011 +0000
description:
allow building without direct-map support in non-XEN kernels.
diffstat:
sys/arch/x86/x86/pmap.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diffs (33 lines):
diff -r 6200916d007d -r 160c4a21c926 sys/arch/x86/x86/pmap.c
--- a/sys/arch/x86/x86/pmap.c Thu Dec 08 11:01:59 2011 +0000
+++ b/sys/arch/x86/x86/pmap.c Thu Dec 08 15:35:34 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.144 2011/12/07 15:47:42 cegger Exp $ */
+/* $NetBSD: pmap.c,v 1.145 2011/12/08 15:35:34 chs Exp $ */
/*-
* Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
@@ -171,7 +171,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.144 2011/12/07 15:47:42 cegger Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.145 2011/12/08 15:35:34 chs Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@@ -1598,7 +1598,14 @@
for (;;) {
newp = avail_start;
avail_start += PAGE_SIZE;
+#ifdef __HAVE_DIRECT_MAP
memset((void *)PMAP_DIRECT_MAP(newp), 0, PAGE_SIZE);
+#else
+ pmap_pte_set(early_zero_pte, (newp & PG_FRAME) | PG_V | PG_RW);
+ pmap_pte_flush();
+ pmap_update_pg((vaddr_t)early_zerop);
+ memset(early_zerop, 0, PAGE_SIZE);
+#endif
pdes[pl_i(0, level)] = (newp & PG_FRAME) | PG_V | PG_RW;
level--;
if (level <= 1)
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