root/include/asm-x86/bootparam.h

INCLUDED FROM

#ifndef ASM_X86__BOOTPARAM_H
#define ASM_X86__BOOTPARAM_H

#include <linux/types.h>
#include <linux/screen_info.h>
#include <linux/apm_bios.h>
#include <linux/edd.h>
#include <asm/e820.h>
#include <asm/ist.h>
#include <video/edid.h>

/* setup data types */
#define SETUP_NONE                      0
#define SETUP_E820_EXT                  1

/* extensible setup data list node */
struct setup_data {
        __u64 next;
        __u32 type;
        __u32 len;
        __u8 data[0];
};

struct setup_header {
        __u8    setup_sects;
        __u16   root_flags;
        __u32   syssize;
        __u16   ram_size;
#define RAMDISK_IMAGE_START_MASK        0x07FF
#define RAMDISK_PROMPT_FLAG             0x8000
#define RAMDISK_LOAD_FLAG               0x4000
        __u16   vid_mode;
        __u16   root_dev;
        __u16   boot_flag;
        __u16   jump;
        __u32   header;
        __u16   version;
        __u32   realmode_swtch;
        __u16   start_sys;
        __u16   kernel_version;
        __u8    type_of_loader;
        __u8    loadflags;
#define LOADED_HIGH     (1<<0)
#define QUIET_FLAG      (1<<5)
#define KEEP_SEGMENTS   (1<<6)
#define CAN_USE_HEAP    (1<<7)
        __u16   setup_move_size;
        __u32   code32_start;
        __u32   ramdisk_image;
        __u32   ramdisk_size;
        __u32   bootsect_kludge;
        __u16   heap_end_ptr;
        __u16   _pad1;
        __u32   cmd_line_ptr;
        __u32   initrd_addr_max;
        __u32   kernel_alignment;
        __u8    relocatable_kernel;
        __u8    _pad2[3];
        __u32   cmdline_size;
        __u32   hardware_subarch;
        __u64   hardware_subarch_data;
        __u32   payload_offset;
        __u32   payload_length;
        __u64   setup_data;
} __attribute__((packed));

struct sys_desc_table {
        __u16 length;
        __u8  table[14];
};

struct efi_info {
        __u32 efi_loader_signature;
        __u32 efi_systab;
        __u32 efi_memdesc_size;
        __u32 efi_memdesc_version;
        __u32 efi_memmap;
        __u32 efi_memmap_size;
        __u32 efi_systab_hi;
        __u32 efi_memmap_hi;
};

/* The so-called "zeropage" */
struct boot_params {
        struct screen_info screen_info;                 /* 0x000 */
        struct apm_bios_info apm_bios_info;             /* 0x040 */
        __u8  _pad2[12];                                /* 0x054 */
        struct ist_info ist_info;                       /* 0x060 */
        __u8  _pad3[16];                                /* 0x070 */
        __u8  hd0_info[16];     /* obsolete! */         /* 0x080 */
        __u8  hd1_info[16];     /* obsolete! */         /* 0x090 */
        struct sys_desc_table sys_desc_table;           /* 0x0a0 */
        __u8  _pad4[144];                               /* 0x0b0 */
        struct edid_info edid_info;                     /* 0x140 */
        struct efi_info efi_info;                       /* 0x1c0 */
        __u32 alt_mem_k;                                /* 0x1e0 */
        __u32 scratch;          /* Scratch field! */    /* 0x1e4 */
        __u8  e820_entries;                             /* 0x1e8 */
        __u8  eddbuf_entries;                           /* 0x1e9 */
        __u8  edd_mbr_sig_buf_entries;                  /* 0x1ea */
        __u8  _pad6[6];                                 /* 0x1eb */
        struct setup_header hdr;    /* setup header */  /* 0x1f1 */
        __u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
        __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];      /* 0x290 */
        struct e820entry e820_map[E820MAX];             /* 0x2d0 */
        __u8  _pad8[48];                                /* 0xcd0 */
        struct edd_info eddbuf[EDDMAXNR];               /* 0xd00 */
        __u8  _pad9[276];                               /* 0xeec */
} __attribute__((packed));

#endif /* ASM_X86__BOOTPARAM_H */