dc031cf44633e7fc549b8ff12d1aefc0ef2e8165
[linux-2.6.git] / include / asm-x86 / bootparam.h
1 #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>
7 #include <linux/edd.h>
8 #include <asm/e820.h>
9 #include <asm/ist.h>
10 #include <video/edid.h>
11
12 struct setup_header {
13         u8      setup_sects;
14         u16     root_flags;
15         u32     syssize;
16         u16     ram_size;
17 #define RAMDISK_IMAGE_START_MASK        0x07FF
18 #define RAMDISK_PROMPT_FLAG             0x8000
19 #define RAMDISK_LOAD_FLAG               0x4000
20         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     (1<<0)
32 #define KEEP_SEGMENTS   (1<<6)
33 #define CAN_USE_HEAP    (1<<7)
34         u16     setup_move_size;
35         u32     code32_start;
36         u32     ramdisk_image;
37         u32     ramdisk_size;
38         u32     bootsect_kludge;
39         u16     heap_end_ptr;
40         u16     _pad1;
41         u32     cmd_line_ptr;
42         u32     initrd_addr_max;
43         u32     kernel_alignment;
44         u8      relocatable_kernel;
45         u8      _pad2[3];
46         u32     cmdline_size;
47         u32     hardware_subarch;
48         u64     hardware_subarch_data;
49 } __attribute__((packed));
50
51 struct sys_desc_table {
52         u16 length;
53         u8  table[14];
54 };
55
56 struct efi_info {
57         u32 _pad1;
58         u32 efi_systab;
59         u32 efi_memdesc_size;
60         u32 efi_memdesc_version;
61         u32 efi_memmap;
62         u32 efi_memmap_size;
63         u32 _pad2[2];
64 };
65
66 /* The so-called "zeropage" */
67 struct boot_params {
68         struct screen_info screen_info;                 /* 0x000 */
69         struct apm_bios_info apm_bios_info;             /* 0x040 */
70         u8  _pad2[12];                                  /* 0x054 */
71         struct ist_info ist_info;                       /* 0x060 */
72         u8  _pad3[16];                                  /* 0x070 */
73         u8  hd0_info[16];       /* obsolete! */         /* 0x080 */
74         u8  hd1_info[16];       /* obsolete! */         /* 0x090 */
75         struct sys_desc_table sys_desc_table;           /* 0x0a0 */
76         u8  _pad4[144];                                 /* 0x0b0 */
77         struct edid_info edid_info;                     /* 0x140 */
78         struct efi_info efi_info;                       /* 0x1c0 */
79         u32 alt_mem_k;                                  /* 0x1e0 */
80         u32 scratch;            /* Scratch field! */    /* 0x1e4 */
81         u8  e820_entries;                               /* 0x1e8 */
82         u8  eddbuf_entries;                             /* 0x1e9 */
83         u8  edd_mbr_sig_buf_entries;                    /* 0x1ea */
84         u8  _pad6[6];                                   /* 0x1eb */
85         struct setup_header hdr;    /* setup header */  /* 0x1f1 */
86         u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
87         u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];        /* 0x290 */
88         struct e820entry e820_map[E820MAX];             /* 0x2d0 */
89         u8  _pad8[48];                                  /* 0xcd0 */
90         struct edd_info eddbuf[EDDMAXNR];               /* 0xd00 */
91         u8  _pad9[276];                                 /* 0xeec */
92 } __attribute__((packed));
93
94 #endif /* _ASM_BOOTPARAM_H */