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 2007 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 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Definitions of structures/data for using a multiboot compliant OS loader. 38 */ 39 #define MB_HEADER_MAGIC 0x1BADB002 /* magic */ 40 #define MB_HEADER_FLAGS 0x00010003 /* flags we use */ 41 #define MB_HEADER_CHECKSUM -0x1BAEB005 /* -(magic + flag) */ 42 43 /* 44 * passed by boot loader to kernel 45 */ 46 #define MB_BOOTLOADER_MAGIC 0x2BADB002 47 48 #ifndef _ASM /* excluded from assembly routines */ 49 50 #include <sys/types.h> 51 #include <sys/types32.h> 52 53 /* 54 * The Multiboot header must be somewhere in the 1st 8K of the image that 55 * the loader loads into memory. 56 */ 57 typedef struct multiboot_header { 58 uint32_t magic; 59 uint32_t flags; 60 uint32_t checksum; 61 caddr32_t header_addr; /* use as (mutliboot_header_t *) */ 62 caddr32_t load_addr; 63 caddr32_t load_end_addr; 64 caddr32_t bss_end_addr; 65 caddr32_t entry_addr; 66 } multiboot_header_t; 67 68 /* The section header table for ELF. */ 69 typedef struct mb_elf_shtable { 70 uint32_t num; 71 uint32_t size; 72 uint32_t addr; 73 uint32_t shndx; 74 } mb_elf_shtable_t; 75 76 /* The module structure. */ 77 typedef struct mb_module { 78 caddr32_t mod_start; 79 caddr32_t mod_end; 80 caddr32_t mod_name; /* use as (char *) */ 81 uint32_t reserved; 82 } mb_module_t; 83 84 /* 85 * Memory map data structure. Walked in a bizarre way - see mutltiboot 86 * documentation for example. 87 */ 88 typedef struct mb_memory_map { 89 uint32_t size; 90 uint32_t base_addr_low; 91 uint32_t base_addr_high; 92 uint32_t length_low; 93 uint32_t length_high; 94 uint32_t type; /* only value of 1 is RAM */ 95 } mb_memory_map_t; 96 97 98 /* 99 * The Multiboot information. This is supplied by the multiboot loader 100 * for the OS. 101 * 102 * The flag bit fields defined what multiboot info the boot 103 * loader (see struct multiboot_info below) supplied: 104 * flag[0] mem_upper, mem_loader 105 * flag[1] boot_device 106 * flag[2] cmdline (for launching kernel) 107 * flag[3] mods_count, mods_addr 108 * flag[4] symbol table for a.out 109 * flag[5] symbol table for elf 110 * flag[6] mmap_length, mmap_addr 111 * flag[7] drives_length, drivers_addr 112 * flag[8] config_table 113 * flag[9] boot_loader_name 114 * flag[10] apm_table 115 * flag[11] vbe_control_info 116 * vbe_mode_info 117 * vbe_mode 118 * vbe_interface_seg 119 * vbe_interface_off 120 * vbe_interface_len 121 */ 122 typedef struct multiboot_info { 123 uint32_t flags; 124 uint32_t mem_lower; /* # of pages below 1Meg */ 125 uint32_t mem_upper; /* # of pages above 1Meg */ 126 uint32_t boot_device; 127 caddr32_t cmdline; /* use as (char *) */ 128 uint32_t mods_count; 129 caddr32_t mods_addr; /* use as (mb_module_t *) */ 130 mb_elf_shtable_t elf_sec; 131 uint32_t mmap_length; 132 caddr32_t mmap_addr; /* use as (mb_memory_map_t *) */ 133 uint32_t drives_length; 134 caddr32_t drives_addr; 135 caddr32_t config_table; 136 caddr32_t boot_loader_name; 137 caddr32_t apm_table; 138 uint32_t vbe_control_info; 139 uint32_t vbe_mode_info; 140 uint16_t vbe_mode; 141 uint16_t vbe_interface_seg; 142 uint16_t vbe_interface_off; 143 uint16_t vbe_interface_len; 144 } multiboot_info_t; 145 146 /* 147 * netinfo for Solaris diskless booting 148 * XXX - not part of multiboot spec 149 */ 150 struct sol_netinfo { 151 uint8_t sn_infotype; 152 uint8_t sn_mactype; 153 uint8_t sn_maclen; 154 uint8_t sn_padding; 155 ulong_t sn_ciaddr; 156 ulong_t sn_siaddr; 157 ulong_t sn_giaddr; 158 ulong_t sn_netmask; 159 uint8_t sn_macaddr[1]; 160 }; 161 162 /* identify bootp/dhcp reply or rarp/ifconfig */ 163 #define SN_TYPE_BOOTP 2 164 #define SN_TYPE_RARP 0xf0 165 166 167 #endif /* _ASM */ 168 169 170 #ifdef __cplusplus 171 } 172 #endif 173 174 #endif /* _MULTIBOOT_H */ 175