| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | #ifndef _X86_64_BOOTSETUP_H |
| 3 | #define _X86_64_BOOTSETUP_H 1 |
| 4 | |
| Venkatesh Pallipadi | f9ba705 | 2005-05-01 08:58:51 -0700 | [diff] [blame] | 5 | #define BOOT_PARAM_SIZE 4096 |
| 6 | extern char x86_boot_params[BOOT_PARAM_SIZE]; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |