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x86: use get_bios_ebda()

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Use get_bios_ebda().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Akinobu Mita
2008-04-19 23:55:20 +09:00
committed by Ingo Molnar
parent ae5830a6f8
commit 356fa0c6e1
3 changed files with 6 additions and 8 deletions
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5
arch/x86/kernel/head64.c
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@@ -22,6 +22,7 @@
#include <asm/sections.h>
#include <asm/kdebug.h>
#include <asm/e820.h>
#include <asm/bios_ebda.h>
static void __init zap_identity_mappings(void)
{
@@ -49,7 +50,6 @@ static void __init copy_bootdata(char *real_mode_data)
}
}
#define BIOS_EBDA_SEGMENT 0x40E
#define BIOS_LOWMEM_KILOBYTES 0x413
/*
@@ -80,8 +80,7 @@ static void __init reserve_ebda_region(void)
lowmem <<= 10;
/* start of EBDA area */
ebda_addr = *(unsigned short *)__va(BIOS_EBDA_SEGMENT);
ebda_addr <<= 4;
ebda_addr = get_bios_ebda();
/* Fixup: bios puts an EBDA in the top 64K segment */
/* of conventional memory, but does not adjust lowmem. */