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 efi_loader_signature;
  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 efi_systab_hi;
  64         __u32 efi_memmap_hi;
  65 };
  66
  67 /* The so-called "zeropage" */
  68 struct boot_params {
  69         struct screen_info screen_info;                 /* 0x000 */
  70         struct apm_bios_info apm_bios_info;             /* 0x040 */
  71         __u8  _pad2[12];                                /* 0x054 */
  72         struct ist_info ist_info;                       /* 0x060 */
  73         __u8  _pad3[16];                                /* 0x070 */
  74         __u8  hd0_info[16];     /* obsolete! */         /* 0x080 */
  75         __u8  hd1_info[16];     /* obsolete! */         /* 0x090 */
  76         struct sys_desc_table sys_desc_table;           /* 0x0a0 */
  77         __u8  _pad4[144];                               /* 0x0b0 */
  78         struct edid_info edid_info;                     /* 0x140 */
  79         struct efi_info efi_info;                       /* 0x1c0 */
  80         __u32 alt_mem_k;                                /* 0x1e0 */
  81         __u32 scratch;          /* Scratch field! */    /* 0x1e4 */
  82         __u8  e820_entries;                             /* 0x1e8 */
  83         __u8  eddbuf_entries;                           /* 0x1e9 */
  84         __u8  edd_mbr_sig_buf_entries;                  /* 0x1ea */
  85         __u8  _pad6[6];                                 /* 0x1eb */
  86         struct setup_header hdr;    /* setup header */  /* 0x1f1 */
  87         __u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
  88         __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];      /* 0x290 */
  89         struct e820entry e820_map[E820MAX];             /* 0x2d0 */
  90         __u8  _pad8[48];                                /* 0xcd0 */
  91         struct edd_info eddbuf[EDDMAXNR];               /* 0xd00 */
  92         __u8  _pad9[276];                               /* 0xeec */
  93 } __attribute__((packed));
  94
  95 #endif /* _ASM_BOOTPARAM_H */