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Annotation of qemu/roms/ipxe/src/arch/i386/include/multiboot.h, revision 1.1

1.1     ! root        1: #ifndef _MULTIBOOT_H
        !             2: #define _MULTIBOOT_H
        !             3: 
        !             4: /**
        !             5:  * @file
        !             6:  *
        !             7:  * Multiboot operating systems
        !             8:  *
        !             9:  */
        !            10: 
        !            11: FILE_LICENCE ( GPL2_OR_LATER );
        !            12: 
        !            13: #include <stdint.h>
        !            14: 
        !            15: /** The magic number for the Multiboot header */
        !            16: #define MULTIBOOT_HEADER_MAGIC 0x1BADB002
        !            17: 
        !            18: /** Boot modules must be page aligned */
        !            19: #define MB_FLAG_PGALIGN 0x00000001
        !            20: 
        !            21: /** Memory map must be provided */
        !            22: #define MB_FLAG_MEMMAP 0x00000002
        !            23: 
        !            24: /** Video mode information must be provided */
        !            25: #define MB_FLAG_VIDMODE 0x00000004
        !            26: 
        !            27: /** Image is a raw multiboot image (not ELF) */
        !            28: #define MB_FLAG_RAW 0x00010000
        !            29: 
        !            30: /**
        !            31:  * The magic number passed by a Multiboot-compliant boot loader
        !            32:  *
        !            33:  * Must be passed in register %eax when jumping to the Multiboot OS
        !            34:  * image.
        !            35:  */
        !            36: #define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
        !            37: 
        !            38: /** Multiboot information structure mem_* fields are valid */
        !            39: #define MBI_FLAG_MEM 0x00000001
        !            40: 
        !            41: /** Multiboot information structure boot_device field is valid */
        !            42: #define MBI_FLAG_BOOTDEV 0x00000002
        !            43: 
        !            44: /** Multiboot information structure cmdline field is valid */
        !            45: #define MBI_FLAG_CMDLINE 0x00000004
        !            46: 
        !            47: /** Multiboot information structure module fields are valid */
        !            48: #define MBI_FLAG_MODS 0x00000008
        !            49: 
        !            50: /** Multiboot information structure a.out symbol table is valid */
        !            51: #define MBI_FLAG_AOUT 0x00000010
        !            52: 
        !            53: /** Multiboot information struture ELF section header table is valid */
        !            54: #define MBI_FLAG_ELF 0x00000020
        !            55: 
        !            56: /** Multiboot information structure memory map is valid */
        !            57: #define MBI_FLAG_MMAP 0x00000040
        !            58: 
        !            59: /** Multiboot information structure drive list is valid */
        !            60: #define MBI_FLAG_DRIVES 0x00000080
        !            61: 
        !            62: /** Multiboot information structure ROM configuration field is valid */
        !            63: #define MBI_FLAG_CFGTBL 0x00000100
        !            64: 
        !            65: /** Multiboot information structure boot loader name field is valid */
        !            66: #define MBI_FLAG_LOADER 0x00000200
        !            67: 
        !            68: /** Multiboot information structure APM table is valid */
        !            69: #define MBI_FLAG_APM 0x00000400
        !            70: 
        !            71: /** Multiboot information structure video information is valid */
        !            72: #define MBI_FLAG_VBE 0x00000800
        !            73: 
        !            74: /** A multiboot header */
        !            75: struct multiboot_header {
        !            76:        uint32_t magic;
        !            77:        uint32_t flags;
        !            78:        uint32_t checksum;
        !            79:        uint32_t header_addr;
        !            80:        uint32_t load_addr;
        !            81:        uint32_t load_end_addr;
        !            82:        uint32_t bss_end_addr;
        !            83:        uint32_t entry_addr;
        !            84: } __attribute__ (( packed, may_alias ));
        !            85: 
        !            86: /** A multiboot a.out symbol table */
        !            87: struct multiboot_aout_symbol_table {
        !            88:        uint32_t tabsize;
        !            89:        uint32_t strsize;
        !            90:        uint32_t addr;
        !            91:        uint32_t reserved;
        !            92: } __attribute__ (( packed, may_alias ));
        !            93: 
        !            94: /** A multiboot ELF section header table */
        !            95: struct multiboot_elf_section_header_table {
        !            96:        uint32_t num;
        !            97:        uint32_t size;
        !            98:        uint32_t addr;
        !            99:        uint32_t shndx;
        !           100: } __attribute__ (( packed, may_alias ));
        !           101: 
        !           102: /** A multiboot information structure */
        !           103: struct multiboot_info {
        !           104:        uint32_t flags;
        !           105:        uint32_t mem_lower;
        !           106:        uint32_t mem_upper;
        !           107:        uint32_t boot_device;
        !           108:        uint32_t cmdline;
        !           109:        uint32_t mods_count;
        !           110:        uint32_t mods_addr;
        !           111:        union {
        !           112:                struct multiboot_aout_symbol_table aout_syms;
        !           113:                struct multiboot_elf_section_header_table elf_sections;
        !           114:        } syms;
        !           115:        uint32_t mmap_length;
        !           116:        uint32_t mmap_addr;
        !           117:        uint32_t drives_length;
        !           118:        uint32_t drives_addr;
        !           119:        uint32_t config_table;
        !           120:        uint32_t boot_loader_name;
        !           121:        uint32_t apm_table;
        !           122:        uint32_t vbe_control_info;
        !           123:        uint32_t vbe_mode_info;
        !           124:        uint16_t vbe_mode;
        !           125:        uint16_t vbe_interface_seg;
        !           126:        uint16_t vbe_interface_off;
        !           127:        uint16_t vbe_interface_len;
        !           128: } __attribute__ (( packed, may_alias ));
        !           129: 
        !           130: /** A multiboot module structure */
        !           131: struct multiboot_module {
        !           132:        uint32_t mod_start;
        !           133:        uint32_t mod_end;
        !           134:        uint32_t string;
        !           135:        uint32_t reserved;
        !           136: } __attribute__ (( packed, may_alias ));
        !           137: 
        !           138: /** A multiboot memory map entry */
        !           139: struct multiboot_memory_map {
        !           140:        uint32_t size;
        !           141:        uint64_t base_addr;
        !           142:        uint64_t length;
        !           143:        uint32_t type;
        !           144: } __attribute__ (( packed, may_alias ));
        !           145: 
        !           146: /** Usable RAM */
        !           147: #define MBMEM_RAM 1
        !           148: 
        !           149: #endif /* _MULTIBOOT_H */

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