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 39 /* The 32-bit kernel does not require the use of the AOUT kludge */ 40 #define MB_HEADER_FLAGS_32 0x00000003 /* flags we use */ 41 #define MB_HEADER_CHECKSUM_32 -0x1BADB005 /* -(magic + flag) */ 42 43 #define MB_HEADER_FLAGS_64 0x00010003 /* flags we use */ 44 #define MB_HEADER_CHECKSUM_64 -0x1BAEB005 /* -(magic + flag) */ 45 46 /* 47 * passed by boot loader to kernel 48 */ 49 #define MB_BOOTLOADER_MAGIC 0x2BADB002 50 51 #ifndef _ASM /* excluded from assembly routines */ 52 53 #include <sys/types.h> 54 #include <sys/types32.h> 55 56 /* 57 * The Multiboot header must be somewhere in the 1st 8K of the image that 58 * the loader loads into memory. 59 */ 60 typedef struct multiboot_header { 61 uint32_t magic; 62 uint32_t flags; 63 uint32_t checksum; 64 caddr32_t header_addr; /* use as (mutliboot_header_t *) */ 65 caddr32_t load_addr; 66 caddr32_t load_end_addr; 67 caddr32_t bss_end_addr; 68 caddr32_t entry_addr; 69 } multiboot_header_t; 70 71 /* The section header table for ELF. */ 72 typedef struct mb_elf_shtable { 73 uint32_t num; 74 uint32_t size; 75 uint32_t addr; 76 uint32_t shndx; 77 } mb_elf_shtable_t; 78 79 /* The module structure. */ 80 typedef struct mb_module { 81 caddr32_t mod_start; 82 caddr32_t mod_end; 83 caddr32_t mod_name; /* use as (char *) */ 84 uint32_t reserved; 85 } mb_module_t; 86 87 /* 88 * Memory map data structure. Walked in a bizarre way - see mutltiboot 89 * documentation for example. 90 */ 91 typedef struct mb_memory_map { 92 uint32_t size; 93 uint32_t base_addr_low; 94 uint32_t base_addr_high; 95 uint32_t length_low; 96 uint32_t length_high; 97 uint32_t type; /* only value of 1 is RAM */ 98 } mb_memory_map_t; 99 100 101 /* 102 * The Multiboot information. This is supplied by the multiboot loader 103 * for the OS. 104 * 105 * The flag bit fields defined what multiboot info the boot 106 * loader (see struct multiboot_info below) supplied: 107 * flag[0] mem_upper, mem_loader 108 * flag[1] boot_device 109 * flag[2] cmdline (for launching kernel) 110 * flag[3] mods_count, mods_addr 111 * flag[4] symbol table for a.out 112 * flag[5] symbol table for elf 113 * flag[6] mmap_length, mmap_addr 114 * flag[7] drives_length, drivers_addr 115 * flag[8] config_table 116 * flag[9] boot_loader_name 117 * flag[10] apm_table 118 * flag[11] vbe_control_info 119 * vbe_mode_info 120 * vbe_mode 121 * vbe_interface_seg 122 * vbe_interface_off 123 * vbe_interface_len 124 */ 125 typedef struct multiboot_info { 126 uint32_t flags; 127 uint32_t mem_lower; /* # of pages below 1Meg */ 128 uint32_t mem_upper; /* # of pages above 1Meg */ 129 uint32_t boot_device; 130 caddr32_t cmdline; /* use as (char *) */ 131 uint32_t mods_count; 132 caddr32_t mods_addr; /* use as (mb_module_t *) */ 133 mb_elf_shtable_t elf_sec; 134 uint32_t mmap_length; 135 caddr32_t mmap_addr; /* use as (mb_memory_map_t *) */ 136 uint32_t drives_length; 137 caddr32_t drives_addr; 138 caddr32_t config_table; 139 caddr32_t boot_loader_name; 140 caddr32_t apm_table; 141 uint32_t vbe_control_info; 142 uint32_t vbe_mode_info; 143 uint16_t vbe_mode; 144 uint16_t vbe_interface_seg; 145 uint16_t vbe_interface_off; 146 uint16_t vbe_interface_len; 147 } multiboot_info_t; 148 149 /* 150 * netinfo for Solaris diskless booting 151 * XXX - not part of multiboot spec 152 */ 153 struct sol_netinfo { 154 uint8_t sn_infotype; 155 uint8_t sn_mactype; 156 uint8_t sn_maclen; 157 uint8_t sn_padding; 158 uint32_t sn_ciaddr; 159 uint32_t sn_siaddr; 160 uint32_t sn_giaddr; 161 uint32_t sn_netmask; 162 uint8_t sn_macaddr[1]; 163 }; 164 165 /* identify bootp/dhcp reply or rarp/ifconfig */ 166 #define SN_TYPE_BOOTP 2 167 #define SN_TYPE_RARP 0xf0 168 169 170 #endif /* _ASM */ 171 172 173 #ifdef __cplusplus 174 } 175 #endif 176 177 #endif /* _MULTIBOOT_H */ 178