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Diffstat (limited to 'tools/libfsimage/zfs/mb_info.h')
| -rw-r--r-- | tools/libfsimage/zfs/mb_info.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/tools/libfsimage/zfs/mb_info.h b/tools/libfsimage/zfs/mb_info.h new file mode 100644 index 0000000000..1e1e63bae6 --- /dev/null +++ b/tools/libfsimage/zfs/mb_info.h @@ -0,0 +1,217 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2000,2003 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * The structure type "mod_list" is used by the "multiboot_info" structure. + */ + +struct mod_list +{ + /* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */ + unsigned long mod_start; + unsigned long mod_end; + + /* Module command line */ + unsigned long cmdline; + + /* padding to take it to 16 bytes (must be zero) */ + unsigned long pad; +}; + + +/* + * INT-15, AX=E820 style "AddressRangeDescriptor" + * ...with a "size" parameter on the front which is the structure size - 4, + * pointing to the next one, up until the full buffer length of the memory + * map has been reached. + */ + +struct AddrRangeDesc +{ + unsigned long size; + unsigned long long BaseAddr; + unsigned long long Length; + unsigned long Type; + + /* unspecified optional padding... */ +} __attribute__ ((packed)); + +/* usable memory "Type", all others are reserved. */ +#define MB_ARD_MEMORY 1 + + +/* Drive Info structure. */ +struct drive_info +{ + /* The size of this structure. */ + unsigned long size; + + /* The BIOS drive number. */ + unsigned char drive_number; + + /* The access mode (see below). */ + unsigned char drive_mode; + + /* The BIOS geometry. */ + unsigned short drive_cylinders; + unsigned char drive_heads; + unsigned char drive_sectors; + + /* The array of I/O ports used for the drive. */ + unsigned short drive_ports[0]; +}; + +/* Drive Mode. */ +#define MB_DI_CHS_MODE 0 +#define MB_DI_LBA_MODE 1 + + +/* APM BIOS info. */ +struct apm_info +{ + unsigned short version; + unsigned short cseg; + unsigned long offset; + unsigned short cseg_16; + unsigned short dseg_16; + unsigned short cseg_len; + unsigned short cseg_16_len; + unsigned short dseg_16_len; +}; + + +/* + * MultiBoot Info description + * + * This is the struct passed to the boot image. This is done by placing + * its address in the EAX register. + */ + +struct multiboot_info +{ + /* MultiBoot info version number */ + unsigned long flags; + + /* Available memory from BIOS */ + unsigned long mem_lower; + unsigned long mem_upper; + + /* "root" partition */ + unsigned long boot_device; + + /* Kernel command line */ + unsigned long cmdline; + + /* Boot-Module list */ + unsigned long mods_count; + unsigned long mods_addr; + + union + { + struct + { + /* (a.out) Kernel symbol table info */ + unsigned long tabsize; + unsigned long strsize; + unsigned long addr; + unsigned long pad; + } + a; + + struct + { + /* (ELF) Kernel section header table */ + unsigned long num; + unsigned long size; + unsigned long addr; + unsigned long shndx; + } + e; + } + syms; + + /* Memory Mapping buffer */ + unsigned long mmap_length; + unsigned long mmap_addr; + + /* Drive Info buffer */ + unsigned long drives_length; + unsigned long drives_addr; + + /* ROM configuration table */ + unsigned long config_table; + + /* Boot Loader Name */ + unsigned long boot_loader_name; + + /* APM table */ + unsigned long apm_table; + + /* Video */ + unsigned long vbe_control_info; + unsigned long vbe_mode_info; + unsigned short vbe_mode; + unsigned short vbe_interface_seg; + unsigned short vbe_interface_off; + unsigned short vbe_interface_len; +}; + +/* + * Flags to be set in the 'flags' parameter above + */ + +/* is there basic lower/upper memory information? */ +#define MB_INFO_MEMORY 0x00000001 +/* is there a boot device set? */ +#define MB_INFO_BOOTDEV 0x00000002 +/* is the command-line defined? */ +#define MB_INFO_CMDLINE 0x00000004 +/* are there modules to do something with? */ +#define MB_INFO_MODS 0x00000008 + +/* These next two are mutually exclusive */ + +/* is there a symbol table loaded? */ +#define MB_INFO_AOUT_SYMS 0x00000010 +/* is there an ELF section header table? */ +#define MB_INFO_ELF_SHDR 0x00000020 + +/* is there a full memory map? */ +#define MB_INFO_MEM_MAP 0x00000040 + +/* Is there drive info? */ +#define MB_INFO_DRIVE_INFO 0x00000080 + +/* Is there a config table? */ +#define MB_INFO_CONFIG_TABLE 0x00000100 + +/* Is there a boot loader name? */ +#define MB_INFO_BOOT_LOADER_NAME 0x00000200 + +/* Is there a APM table? */ +#define MB_INFO_APM_TABLE 0x00000400 + +/* Is there video information? */ +#define MB_INFO_VIDEO_INFO 0x00000800 + +/* + * The following value must be present in the EAX register. + */ + +#define MULTIBOOT_VALID 0x2BADB002 |