1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _MULTIBOOT_H 28 #define _MULTIBOOT_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 /* 35 * Definitions of structures/data for using a multiboot compliant OS loader. 36 */ 37 #define MB_HEADER_MAGIC 0x1BADB002 /* magic */ 38 #define MB_HEADER_FLAGS 0x00010003 /* flags we use */ 39 #define MB_HEADER_CHECKSUM -0x1BAEB005 /* -(magic + flag) */ 40 41 /* 42 * passed by boot loader to kernel 43 */ 44 #define MB_BOOTLOADER_MAGIC 0x2BADB002 45 46 #ifndef _ASM /* excluded from assembly routines */ 47 48 #include <sys/types.h> 49 #include <sys/types32.h> 50 51 /* 52 * The Multiboot header must be somewhere in the 1st 8K of the image that 53 * the loader loads into memory. 54 */ 55 typedef struct multiboot_header { 56 uint32_t magic; 57 uint32_t flags; 58 uint32_t checksum; 59 caddr32_t header_addr; /* use as (mutliboot_header_t *) */ 60 caddr32_t load_addr; 61 caddr32_t load_end_addr; 62 caddr32_t bss_end_addr; 63 caddr32_t entry_addr; 64 } multiboot_header_t; 65 66 /* The section header table for ELF. */ 67 typedef struct mb_elf_shtable { 68 uint32_t num; 69 uint32_t size; 70 uint32_t addr; 71 uint32_t shndx; 72 } mb_elf_shtable_t; 73 74 /* The module structure. */ 75 typedef struct mb_module { 76 caddr32_t mod_start; 77 caddr32_t mod_end; 78 caddr32_t mod_name; /* use as (char *) */ 79 uint32_t reserved; 80 } mb_module_t; 81 82 /* 83 * Memory map data structure. Walked in a bizarre way - see mutltiboot 84 * documentation for example. 85 */ 86 typedef struct mb_memory_map { 87 uint32_t size; 88 uint32_t base_addr_low; 89 uint32_t base_addr_high; 90 uint32_t length_low; 91 uint32_t length_high; 92 uint32_t type; /* only value of 1 is RAM */ 93 } mb_memory_map_t; 94 95 96 /* 97 * The Multiboot information. This is supplied by the multiboot loader 98 * for the OS. 99 * 100 * The flag bit fields defined what multiboot info the boot 101 * loader (see struct multiboot_info below) supplied: 102 * flag[0] mem_upper, mem_loader 103 * flag[1] boot_device 104 * flag[2] cmdline (for launching kernel) 105 * flag[3] mods_count, mods_addr 106 * flag[4] symbol table for a.out 107 * flag[5] symbol table for elf 108 * flag[6] mmap_length, mmap_addr 109 * flag[7] drives_length, drivers_addr 110 * flag[8] config_table 111 * flag[9] boot_loader_name 112 * flag[10] apm_table 113 * flag[11] vbe_control_info 114 * vbe_mode_info 115 * vbe_mode 116 * vbe_interface_seg 117 * vbe_interface_off 118 * vbe_interface_len 119 */ 120 typedef struct multiboot_info { 121 uint32_t flags; 122 uint32_t mem_lower; /* # of pages below 1Meg */ 123 uint32_t mem_upper; /* # of pages above 1Meg */ 124 uint32_t boot_device; 125 caddr32_t cmdline; /* use as (char *) */ 126 uint32_t mods_count; 127 caddr32_t mods_addr; /* use as (mb_module_t *) */ 128 mb_elf_shtable_t elf_sec; 129 uint32_t mmap_length; 130 caddr32_t mmap_addr; /* use as (mb_memory_map_t *) */ 131 uint32_t drives_length; 132 caddr32_t drives_addr; 133 caddr32_t config_table; 134 caddr32_t boot_loader_name; 135 caddr32_t apm_table; 136 uint32_t vbe_control_info; 137 uint32_t vbe_mode_info; 138 uint16_t vbe_mode; 139 uint16_t vbe_interface_seg; 140 uint16_t vbe_interface_off; 141 uint16_t vbe_interface_len; 142 } multiboot_info_t; 143 144 /* 145 * netinfo for Solaris diskless booting 146 * XXX - not part of multiboot spec 147 */ 148 struct sol_netinfo { 149 uint8_t sn_infotype; 150 uint8_t sn_mactype; 151 uint8_t sn_maclen; 152 uint8_t sn_padding; 153 uint32_t sn_ciaddr; 154 uint32_t sn_siaddr; 155 uint32_t sn_giaddr; 156 uint32_t sn_netmask; 157 uint8_t sn_macaddr[1]; 158 }; 159 160 /* identify bootp/dhcp reply or rarp/ifconfig */ 161 #define SN_TYPE_BOOTP 2 162 #define SN_TYPE_RARP 0xf0 163 164 165 #endif /* _ASM */ 166 167 168 #ifdef __cplusplus 169 } 170 #endif 171 172 #endif /* _MULTIBOOT_H */ 173