e820.h 774 字节
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#ifndef __ASM_E820_H
#define __ASM_E820_H
#define E820MAP	0x2d0		/* our map */
#define E820MAX	128		/* number of entries in E820MAP */
#define E820NR	0x1e8		/* # entries in E820MAP */

#define E820_RAM	1
#define E820_RESERVED	2
#define E820_ACPI	3
#define E820_NVS	4

#ifndef __ASSEMBLY__
struct e820entry {
	__u64 addr;	/* start of memory segment */
	__u64 size;	/* size of memory segment */
	__u32 type;	/* type of memory segment */
} __attribute__((packed));

struct e820map {
	__u32 nr_map;
	struct e820entry map[E820MAX];
};
#endif /* __ASSEMBLY__ */

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#define ISA_START_ADDRESS	0xa0000
#define ISA_END_ADDRESS		0x100000

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#ifdef __KERNEL__
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#ifdef CONFIG_X86_32
# include "e820_32.h"
#else
# include "e820_64.h"
#endif
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#endif /* __KERNEL__ */

#endif  /* __ASM_E820_H */