include/asm-x86_64/bootsetup.h

   1
   2 #ifndef _X86_64_BOOTSETUP_H
   3 #define _X86_64_BOOTSETUP_H 1
   4
   5 extern char x86_boot_params[2048];
   6
   7 /*
   8  * This is set up by the setup-routine at boot-time
   9  */
  10 #define PARAM   ((unsigned char *)x86_boot_params)
  11 #define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
  12 #define EXT_MEM_K (*(unsigned short *) (PARAM+2))
  13 #define ALT_MEM_K (*(unsigned int *) (PARAM+0x1e0))
  14 #define E820_MAP_NR (*(char*) (PARAM+E820NR))
  15 #define E820_MAP    ((struct e820entry *) (PARAM+E820MAP))
  16 #define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40))
  17 #define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80))
  18 #define SYS_DESC_TABLE (*(struct sys_desc_table_struct*)(PARAM+0xa0))
  19 #define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
  20 #define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
  21 #define SAVED_VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA))
  22 #define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
  23 #define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
  24 #define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
  25 #define KERNEL_START (*(unsigned int *) (PARAM+0x214))
  26 #define INITRD_START (*(unsigned int *) (PARAM+0x218))
  27 #define INITRD_SIZE (*(unsigned int *) (PARAM+0x21c))
  28 #define EDID_INFO (*(struct edid_info *) (PARAM+0x140))
  29 #define EDD_NR     (*(unsigned char *) (PARAM+EDDNR))
  30 #define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF))
  31 #define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
  32 #define EDD_BUF     ((struct edd_info *) (PARAM+EDDBUF))
  33 #define COMMAND_LINE saved_command_line
  34
  35 #define RAMDISK_IMAGE_START_MASK        0x07FF
  36 #define RAMDISK_PROMPT_FLAG             0x8000
  37 #define RAMDISK_LOAD_FLAG               0x4000
  38
  39 #endif