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authorArtur Grabowski <art@cvs.openbsd.org>2003-05-09 23:51:24 +0000
committerArtur Grabowski <art@cvs.openbsd.org>2003-05-09 23:51:24 +0000
commite5a16e7a1cff83232e6cdddb528b0a6fde3cf39c (patch)
tree9343ef8c5f4343ae7c9736f62490bc27080620e2
parent27980039fe4ab0df810445f260b17a1ca477c16d (diff)
Map page tables non-exec.
deraadt@ ok.
-rw-r--r--sys/arch/i386/i386/pmap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/arch/i386/i386/pmap.c b/sys/arch/i386/i386/pmap.c
index 2aa41487633..ad1e141b4eb 100644
--- a/sys/arch/i386/i386/pmap.c
+++ b/sys/arch/i386/i386/pmap.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pmap.c,v 1.70 2003/05/05 17:54:59 drahn Exp $ */
+/* $OpenBSD: pmap.c,v 1.71 2003/05/09 23:51:23 art Exp $ */
/* $NetBSD: pmap.c,v 1.91 2000/06/02 17:46:37 thorpej Exp $ */
/*
@@ -1143,7 +1143,8 @@ pmap_alloc_pvpage(pmap, mode)
* pmap is already locked! (...but entering the mapping is safe...)
*/
- pmap_kenter_pa(pv_cachedva, VM_PAGE_TO_PHYS(pg), VM_PROT_ALL);
+ pmap_kenter_pa(pv_cachedva, VM_PAGE_TO_PHYS(pg),
+ VM_PROT_READ|VM_PROT_WRITE);
pvpage = (struct pv_page *) pv_cachedva;
pv_cachedva = 0;
return(pmap_add_pvpage(pvpage, mode != ALLOCPV_NONEED));