diff options
Diffstat (limited to 'include/asm-x86/bootsetup.h')
-rw-r--r-- | include/asm-x86/bootsetup.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/asm-x86/bootsetup.h b/include/asm-x86/bootsetup.h new file mode 100644 index 000000000000..7b1c3ad155fd --- /dev/null +++ b/include/asm-x86/bootsetup.h @@ -0,0 +1,40 @@ + +#ifndef _X86_64_BOOTSETUP_H +#define _X86_64_BOOTSETUP_H 1 + +#define BOOT_PARAM_SIZE 4096 +extern char x86_boot_params[BOOT_PARAM_SIZE]; + +/* + * This is set up by the setup-routine at boot-time + */ +#define PARAM ((unsigned char *)x86_boot_params) +#define SCREEN_INFO (*(struct screen_info *) (PARAM+0)) +#define EXT_MEM_K (*(unsigned short *) (PARAM+2)) +#define ALT_MEM_K (*(unsigned int *) (PARAM+0x1e0)) +#define E820_MAP_NR (*(char*) (PARAM+E820NR)) +#define E820_MAP ((struct e820entry *) (PARAM+E820MAP)) +#define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40)) +#define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80)) +#define SYS_DESC_TABLE (*(struct sys_desc_table_struct*)(PARAM+0xa0)) +#define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2)) +#define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8)) +#define SAVED_VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA)) +#define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC)) +#define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF)) +#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210)) +#define KERNEL_START (*(unsigned int *) (PARAM+0x214)) +#define INITRD_START (*(unsigned int *) (PARAM+0x218)) +#define INITRD_SIZE (*(unsigned int *) (PARAM+0x21c)) +#define EDID_INFO (*(struct edid_info *) (PARAM+0x140)) +#define EDD_NR (*(unsigned char *) (PARAM+EDDNR)) +#define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF)) +#define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF)) +#define EDD_BUF ((struct edd_info *) (PARAM+EDDBUF)) +#define COMMAND_LINE boot_command_line + +#define RAMDISK_IMAGE_START_MASK 0x07FF +#define RAMDISK_PROMPT_FLAG 0x8000 +#define RAMDISK_LOAD_FLAG 0x4000 + +#endif |