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| author | Alexey Starikovskiy <astarikovskiy@suse.de> | 2008-03-17 22:08:17 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 19:41:05 +0400 |
| commit | ce3fe6b2bfded4f5d931c5f2f9325dc2e3fd3a74 (patch) | |
| tree | 8e8001b52fa710c90a14a0078d4f689086186b9e /include/asm-x86/bios_ebda.h | |
| parent | e3e3ffa20351b32b5eaa6020d051305c8d803ed4 (diff) | |
| download | linux-ce3fe6b2bfded4f5d931c5f2f9325dc2e3fd3a74.tar.xz | |
x86: use get_bios_ebda in mpparse_64.c
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/bios_ebda.h')
| -rw-r--r-- | include/asm-x86/bios_ebda.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-x86/bios_ebda.h b/include/asm-x86/bios_ebda.h new file mode 100644 index 000000000000..9cbd9a668af8 --- /dev/null +++ b/include/asm-x86/bios_ebda.h @@ -0,0 +1,15 @@ +#ifndef _MACH_BIOS_EBDA_H +#define _MACH_BIOS_EBDA_H + +/* + * there is a real-mode segmented pointer pointing to the + * 4K EBDA area at 0x40E. + */ +static inline unsigned int get_bios_ebda(void) +{ + unsigned int address = *(unsigned short *)phys_to_virt(0x40E); + address <<= 4; + return address; /* 0 means none */ +} + +#endif /* _MACH_BIOS_EBDA_H */ |