1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#ifndef __E820_HEADER
#define __E820_HEADER
/*
* PC BIOS standard E820 types and structure.
*/
#define E820_RAM 1
#define E820_RESERVED 2
#define E820_ACPI 3
#define E820_NVS 4
#define E820_UNUSABLE 5
struct e820entry {
uint64_t addr;
uint64_t size;
uint32_t type;
} __attribute__((packed));
#define E820MAX 128
struct e820map {
int nr_map;
struct e820entry map[E820MAX];
};
extern int e820_all_mapped(u64 start, u64 end, unsigned type);
extern int reserve_e820_ram(struct e820map *e820, uint64_t s, uint64_t e);
extern int e820_change_range_type(
struct e820map *e820, uint64_t s, uint64_t e,
uint32_t orig_type, uint32_t new_type);
extern int e820_add_range(
struct e820map *, uint64_t s, uint64_t e, uint32_t type);
extern unsigned long init_e820(const char *, struct e820entry *, int *);
extern struct e820map e820;
/* These symbols live in the boot trampoline. */
extern struct e820entry e820map[];
extern int e820nr;
extern unsigned int lowmem_kb, highmem_kb;
#define e820_raw bootsym(e820map)
#define e820_raw_nr bootsym(e820nr)
#endif /*__E820_HEADER*/
|
