include/asm-x86_64/bootsetup.h

   1
   2 #ifndef _X86_64_BOOTSETUP_H
   3 #define _X86_64_BOOTSETUP_H 1
   4
   5 #define BOOT_PARAM_SIZE         4096
   6 extern char x86_boot_params[BOOT_PARAM_SIZE];
   7
   8 /*
   9  * This is set up by the setup-routine at boot-time
  10  */
  11 #define PARAM   ((unsigned char *)x86_boot_params)
  12 #define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
  13 #define EXT_MEM_K (*(unsigned short *) (PARAM+2))
  14 #define ALT_MEM_K (*(unsigned int *) (PARAM+0x1e0))
  15 #define E820_MAP_NR (*(char*) (PARAM+E820NR))
  16 #define E820_MAP    ((struct e820entry *) (PARAM+E820MAP))
  17 #define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40))
  18 #define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80))
  19 #define SYS_DESC_TABLE (*(struct sys_desc_table_struct*)(PARAM+0xa0))
  20 #define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
  21 #define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
  22 #define SAVED_VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA))
  23 #define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
  24 #define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
  25 #define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
  26 #define KERNEL_START (*(unsigned int *) (PARAM+0x214))
  27 #define INITRD_START (*(unsigned int *) (PARAM+0x218))
  28 #define INITRD_SIZE (*(unsigned int *) (PARAM+0x21c))
  29 #define EDID_INFO (*(struct edid_info *) (PARAM+0x140))
  30 #define EDD_NR     (*(unsigned char *) (PARAM+EDDNR))
  31 #define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF))
  32 #define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
  33 #define EDD_BUF     ((struct edd_info *) (PARAM+EDDBUF))
  34 #define COMMAND_LINE saved_command_line
  35
  36 #define RAMDISK_IMAGE_START_MASK        0x07FF
  37 #define RAMDISK_PROMPT_FLAG             0x8000
  38 #define RAMDISK_LOAD_FLAG               0x4000
  39
  40 #endif