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authorThomas Gleixner <tglx@linutronix.de>2008-01-30 07:34:06 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-30 07:34:06 -0500
commit950f9d95bed1a366434d3597ea75f5b9d772d74f (patch)
tree900c548d99c14aacc31888a3483545f8352aea22 /include/asm-x86/e820.h
parent5f5192b9feeff6a96c97c143c3ca558fdbe2dc8e (diff)
x86: fix the missing BIOS area check in page_is_ram
page_is_ram has a FIXME since ages, which reminds to sanity check the BIOS area between 640k and 1M, which is sometimes falsely reported as RAM in the e820 tables. Implement the sanity check. Move the BIOS range defines from pageattr.c into e820.h to avoid duplicate defines. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/e820.h')
-rw-r--r--include/asm-x86/e820.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h
index f96f1853bc41..7004251fc66b 100644
--- a/include/asm-x86/e820.h
+++ b/include/asm-x86/e820.h
@@ -25,6 +25,9 @@ struct e820map {
25#define ISA_START_ADDRESS 0xa0000 25#define ISA_START_ADDRESS 0xa0000
26#define ISA_END_ADDRESS 0x100000 26#define ISA_END_ADDRESS 0x100000
27 27
28#define BIOS_BEGIN 0x000a0000
29#define BIOS_END 0x00100000
30
28#ifdef __KERNEL__ 31#ifdef __KERNEL__
29#ifdef CONFIG_X86_32 32#ifdef CONFIG_X86_32
30# include "e820_32.h" 33# include "e820_32.h"