2c0903f2ab
include <asm/io.h> for phys_to_virt() Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
17 lines
364 B
C
17 lines
364 B
C
#ifndef _MACH_BIOS_EBDA_H
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#define _MACH_BIOS_EBDA_H
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#include <asm/io.h>
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/*
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* there is a real-mode segmented pointer pointing to the
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* 4K EBDA area at 0x40E.
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*/
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static inline unsigned int get_bios_ebda(void)
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{
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unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
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address <<= 4;
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return address; /* 0 means none */
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}
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#endif /* _MACH_BIOS_EBDA_H */
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