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H. Peter Anvin48c7ae62007-07-11 12:18:35 -07001#ifndef _ASM_BOOTPARAM_H
2#define _ASM_BOOTPARAM_H
3
4#include <linux/types.h>
5#include <linux/screen_info.h>
6#include <linux/apm_bios.h>
H. Peter Anvin48c7ae62007-07-11 12:18:35 -07007#include <linux/edd.h>
H. Peter Anvin238b7062007-07-18 17:19:30 -07008#include <asm/e820.h>
9#include <asm/ist.h>
H. Peter Anvin48c7ae62007-07-11 12:18:35 -070010#include <video/edid.h>
11
12struct setup_header {
13 u8 setup_sects;
14 u16 root_flags;
15 u32 syssize;
16 u16 ram_size;
H. Peter Anvin30c82642007-10-15 17:13:22 -070017#define RAMDISK_IMAGE_START_MASK 0x07FF
18#define RAMDISK_PROMPT_FLAG 0x8000
19#define RAMDISK_LOAD_FLAG 0x4000
H. Peter Anvin48c7ae62007-07-11 12:18:35 -070020 u16 vid_mode;
21 u16 root_dev;
22 u16 boot_flag;
23 u16 jump;
24 u32 header;
25 u16 version;
26 u32 realmode_swtch;
27 u16 start_sys;
28 u16 kernel_version;
29 u8 type_of_loader;
30 u8 loadflags;
31#define LOADED_HIGH 0x01
32#define CAN_USE_HEAP 0x80
33 u16 setup_move_size;
34 u32 code32_start;
35 u32 ramdisk_image;
36 u32 ramdisk_size;
37 u32 bootsect_kludge;
38 u16 heap_end_ptr;
39 u16 _pad1;
40 u32 cmd_line_ptr;
41 u32 initrd_addr_max;
42 u32 kernel_alignment;
43 u8 relocatable_kernel;
44} __attribute__((packed));
45
46struct sys_desc_table {
47 u16 length;
48 u8 table[14];
49};
50
51struct efi_info {
52 u32 _pad1;
53 u32 efi_systab;
54 u32 efi_memdesc_size;
H. Peter Anvinf77b1ab2007-07-18 17:16:19 -070055 u32 efi_memdesc_version;
H. Peter Anvin48c7ae62007-07-11 12:18:35 -070056 u32 efi_memmap;
H. Peter Anvinf77b1ab2007-07-18 17:16:19 -070057 u32 efi_memmap_size;
H. Peter Anvin48c7ae62007-07-11 12:18:35 -070058 u32 _pad2[2];
59};
60
61/* The so-called "zeropage" */
62struct boot_params {
63 struct screen_info screen_info; /* 0x000 */
64 struct apm_bios_info apm_bios_info; /* 0x040 */
65 u8 _pad2[12]; /* 0x054 */
H. Peter Anvin238b7062007-07-18 17:19:30 -070066 struct ist_info ist_info; /* 0x060 */
H. Peter Anvin48c7ae62007-07-11 12:18:35 -070067 u8 _pad3[16]; /* 0x070 */
68 u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
69 u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
70 struct sys_desc_table sys_desc_table; /* 0x0a0 */
71 u8 _pad4[144]; /* 0x0b0 */
72 struct edid_info edid_info; /* 0x140 */
73 struct efi_info efi_info; /* 0x1c0 */
74 u32 alt_mem_k; /* 0x1e0 */
75 u32 scratch; /* Scratch field! */ /* 0x1e4 */
76 u8 e820_entries; /* 0x1e8 */
77 u8 eddbuf_entries; /* 0x1e9 */
78 u8 edd_mbr_sig_buf_entries; /* 0x1ea */
79 u8 _pad6[6]; /* 0x1eb */
80 struct setup_header hdr; /* setup header */ /* 0x1f1 */
81 u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
82 u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
83 struct e820entry e820_map[E820MAX]; /* 0x2d0 */
84 u8 _pad8[48]; /* 0xcd0 */
85 struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
86 u8 _pad9[276]; /* 0xeec */
87} __attribute__((packed));
88
89#endif /* _ASM_BOOTPARAM_H */