[patch] Fix BIOS-e820 end address
From: Keshavamurthy, Anil S
Date: Fri Sep 07 2007 - 16:38:20 EST
Subject: [patch] Fix BIOS-e820 end address
--snip of boot message--
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000007fe8cc00 (usable)
----end snip---
As you see from above the address 0000000000100000 is both
shown as reserved and usable which is confusing.
This patch fixes the BIOS-e820 end address.
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
---
arch/i386/kernel/e820.c | 2 +-
arch/x86_64/kernel/e820.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
Index: work/arch/i386/kernel/e820.c
===================================================================
--- work.orig/arch/i386/kernel/e820.c 2007-09-08 12:00:33.000000000 -0700
+++ work/arch/i386/kernel/e820.c 2007-09-08 13:39:12.000000000 -0700
@@ -753,7 +753,7 @@
for (i = 0; i < e820.nr_map; i++) {
printk(" %s: %016Lx - %016Lx ", who,
e820.map[i].addr,
- e820.map[i].addr + e820.map[i].size);
+ e820.map[i].addr + e820.map[i].size - 1);
switch (e820.map[i].type) {
case E820_RAM: printk("(usable)\n");
break;
Index: work/arch/x86_64/kernel/e820.c
===================================================================
--- work.orig/arch/x86_64/kernel/e820.c 2007-09-08 12:00:46.000000000 -0700
+++ work/arch/x86_64/kernel/e820.c 2007-09-08 13:38:57.000000000 -0700
@@ -368,7 +368,7 @@
for (i = 0; i < e820.nr_map; i++) {
printk(KERN_INFO " %s: %016Lx - %016Lx ", who,
(unsigned long long) e820.map[i].addr,
- (unsigned long long) (e820.map[i].addr + e820.map[i].size));
+ (unsigned long long) (e820.map[i].addr + e820.map[i].size - 1));
switch (e820.map[i].type) {
case E820_RAM: printk("(usable)\n");
break;
-
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