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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/asm-x86_64/bootsetup.h
2 #ifndef _X86_64_BOOTSETUP_H
3 #define _X86_64_BOOTSETUP_H 1
5 #define BOOT_PARAM_SIZE 4096
6 extern char x86_boot_params
[BOOT_PARAM_SIZE
];
9 * This is set up by the setup-routine at boot-time
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
36 #define RAMDISK_IMAGE_START_MASK 0x07FF
37 #define RAMDISK_PROMPT_FLAG 0x8000
38 #define RAMDISK_LOAD_FLAG 0x4000