0c51a965ed
This patch extracts the common part of head32.c and head64.c into head.c. Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
20 lines
397 B
C
20 lines
397 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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void reserve_ebda_region(void);
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#endif /* _MACH_BIOS_EBDA_H */
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