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authorTheo de Raadt <deraadt@cvs.openbsd.org>2008-06-24 21:24:04 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2008-06-24 21:24:04 +0000
commiteb30d8959a1448ff7a7b73c410533fd80508f0af (patch)
treecfc8de5d0358f7748bb5089529c342104180deba /sys/arch/sh/include
parent3adb826ceb6fc3ab73eae18d801296aaefa6c8aa (diff)
On user/kernel shared page table machines, do not let processes map their
own page 0, as discussed with miod (and many others previously, including art and toby). On sparc, make this __LDPGSZ because PAGE_SIZE is non-constant ok miod tedu
Diffstat (limited to 'sys/arch/sh/include')
-rw-r--r--sys/arch/sh/include/vmparam.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/arch/sh/include/vmparam.h b/sys/arch/sh/include/vmparam.h
index 4269cdbb5f6..4ba9a536bc4 100644
--- a/sys/arch/sh/include/vmparam.h
+++ b/sys/arch/sh/include/vmparam.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: vmparam.h,v 1.4 2007/09/02 21:18:08 hshoexer Exp $ */
+/* $OpenBSD: vmparam.h,v 1.5 2008/06/24 21:24:03 deraadt Exp $ */
/* $NetBSD: vmparam.h,v 1.17 2006/03/04 01:55:03 uwe Exp $ */
/*-
@@ -42,7 +42,7 @@
#include <sys/queue.h>
/* Virtual address map. */
-#define VM_MIN_ADDRESS ((vaddr_t)0)
+#define VM_MIN_ADDRESS ((vaddr_t)PAGE_SIZE)
#define VM_MAXUSER_ADDRESS ((vaddr_t)0x7ffff000)
#define VM_MAX_ADDRESS ((vaddr_t)0x7ffff000)
#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0xc0000000)