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authorMichael Shalayeff <mickey@cvs.openbsd.org>2005-11-10 14:32:39 +0000
committerMichael Shalayeff <mickey@cvs.openbsd.org>2005-11-10 14:32:39 +0000
commitffcb581787bac33aba3d08403e42313fbfb5f76d (patch)
tree9fa670e80c8e1355fae54867080c0381f8c589d2 /sys/arch/i386
parent6250670363fb119aa6178193911dbfa7f0aa5818 (diff)
make sure to ignore >4g and split on 4g memory segments from the bios map; tom@ ok
Diffstat (limited to 'sys/arch/i386')
-rw-r--r--sys/arch/i386/i386/machdep.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c
index 7bd95a3ca44..d85bfc07775 100644
--- a/sys/arch/i386/i386/machdep.c
+++ b/sys/arch/i386/i386/machdep.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: machdep.c,v 1.328 2005/11/04 06:55:35 tedu Exp $ */
+/* $OpenBSD: machdep.c,v 1.329 2005/11/10 14:32:38 mickey Exp $ */
/* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */
/*-
@@ -2864,15 +2864,30 @@ init386(paddr_t first_avail)
for(i = 0, im = bios_memmap; im->type != BIOS_MAP_END; im++)
if (im->type == BIOS_MAP_FREE) {
register paddr_t a, e;
+#ifdef DEBUG
+ printf(" %llx-%llx", im->addr, im->addr + im->size);
+#endif
+
+ if (im->addr >= 0x100000000ULL) {
+#ifdef DEBUG
+ printf("-H");
+#endif
+ continue;
+ }
a = i386_round_page(im->addr);
- e = i386_trunc_page(im->addr + im->size);
+ if (im->addr + im->size <= 0xfffff000ULL)
+ e = i386_trunc_page(im->addr + im->size);
+ else {
+#ifdef DEBUG
+ printf("-T");
+#endif
+ e = 0xfffff000;
+ }
+
/* skip first four pages */
if (a < 5 * NBPG)
a = 5 * NBPG;
-#ifdef DEBUG
- printf(" %u-%u", a, e);
-#endif
/* skip shorter than page regions */
if (a >= e || (e - a) < NBPG) {