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1/*␉$NetBSD: multiboot.h,v 1.4 2006/10/25 13:56:16 jmmv Exp $␉*/␊
2␊
3/*-␊
4 * Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.␊
5 * All rights reserved.␊
6 *␊
7 * This code is derived from software contributed to The NetBSD Foundation␊
8 * by Julio M. Merino Vidal.␊
9 *␊
10 * Redistribution and use in source and binary forms, with or without␊
11 * modification, are permitted provided that the following conditions␊
12 * are met:␊
13 * 1. Redistributions of source code must retain the above copyright␊
14 * notice, this list of conditions and the following disclaimer.␊
15 * 2. Redistributions in binary form must reproduce the above copyright␊
16 * notice, this list of conditions and the following disclaimer in the␊
17 * documentation and/or other materials provided with the distribution.␊
18 * 3. All advertising materials mentioning features or use of this software␊
19 * must display the following acknowledgement:␊
20 *␉This product includes software developed by the NetBSD␊
21 *␉Foundation, Inc. and its contributors.␊
22 * 4. Neither the name of The NetBSD Foundation nor the names of its␊
23 * contributors may be used to endorse or promote products derived␊
24 * from this software without specific prior written permission.␊
25 *␊
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS␊
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED␊
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR␊
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS␊
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR␊
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF␊
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS␊
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN␊
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)␊
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE␊
36 * POSSIBILITY OF SUCH DAMAGE.␊
37 */␊
38␊
39/* Modified by David Elliott <dfe@cox.net> on 2007/06/27 ␊
40 - Removed checks for KERNEL define␊
41 - Replaced _LOCORE def check with __ASSEMBLER__ def check␊
42 - Removed prototypes for C functions we don't have␊
43 - Replaced all paddr_t and vaddr_t types with uint32_t and a comment␊
44*/␊
45␊
46/* --------------------------------------------------------------------- */␊
47␊
48/*␊
49 * Multiboot header structure.␊
50 */␊
51#define MULTIBOOT_HEADER_MAGIC␉␉0x1BADB002␊
52#define MULTIBOOT_HEADER_MODS_ALIGNED␉0x00000001␊
53#define MULTIBOOT_HEADER_WANT_MEMORY␉0x00000002␊
54#define MULTIBOOT_HEADER_HAS_VBE␉0x00000004␊
55#define MULTIBOOT_HEADER_HAS_ADDR␉0x00010000␊
56␊
57#if !defined(__ASSEMBLER__)␊
58struct multiboot_header {␊
59␉uint32_t␉mh_magic;␊
60␉uint32_t␉mh_flags;␊
61␉uint32_t␉mh_checksum;␊
62␊
63␉/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */␊
64␉uint32_t␉mh_header_addr; /* paddr_t */␊
65␉uint32_t␉mh_load_addr; /* paddr_t */␊
66␉uint32_t␉mh_load_end_addr; /* paddr_t */␊
67␉uint32_t␉mh_bss_end_addr; /* paddr_t */␊
68␉uint32_t␉mh_entry_addr; /* paddr_t */␊
69␊
70␉/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE. */␊
71␉uint32_t␉mh_mode_type;␊
72␉uint32_t␉mh_width;␊
73␉uint32_t␉mh_height;␊
74␉uint32_t␉mh_depth;␊
75};␊
76#endif /* !defined(__ASSEMBLER__) */␊
77␊
78/*␊
79 * Symbols defined in locore.S.␊
80 */␊
81#if !defined(__ASSEMBLER__)␊
82extern struct multiboot_header *Multiboot_Header;␊
83#endif /* !defined(__ASSEMBLER__) */␊
84␊
85/* --------------------------------------------------------------------- */␊
86␊
87/*␊
88 * Multiboot information structure.␊
89 */␊
90#define MULTIBOOT_INFO_MAGIC␉␉0x2BADB002␊
91#define MULTIBOOT_INFO_HAS_MEMORY␉0x00000001␊
92#define MULTIBOOT_INFO_HAS_BOOT_DEVICE␉0x00000002␊
93#define MULTIBOOT_INFO_HAS_CMDLINE␉0x00000004␊
94#define MULTIBOOT_INFO_HAS_MODS␉␉0x00000008␊
95#define MULTIBOOT_INFO_HAS_AOUT_SYMS␉0x00000010␊
96#define MULTIBOOT_INFO_HAS_ELF_SYMS␉0x00000020␊
97#define MULTIBOOT_INFO_HAS_MMAP␉␉0x00000040␊
98#define MULTIBOOT_INFO_HAS_DRIVES␉0x00000080␊
99#define MULTIBOOT_INFO_HAS_CONFIG_TABLE␉0x00000100␊
100#define MULTIBOOT_INFO_HAS_LOADER_NAME␉0x00000200␊
101#define MULTIBOOT_INFO_HAS_APM_TABLE␉0x00000400␊
102#define MULTIBOOT_INFO_HAS_VBE␉␉0x00000800␊
103␊
104#if !defined(__ASSEMBLER__)␊
105struct multiboot_info {␊
106␉uint32_t␉mi_flags;␊
107␊
108␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MEMORY. */␊
109␉uint32_t␉mi_mem_lower;␊
110␉uint32_t␉mi_mem_upper;␊
111␊
112␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_BOOT_DEVICE. */␊
113␉uint8_t␉␉mi_boot_device_part3;␊
114␉uint8_t␉␉mi_boot_device_part2;␊
115␉uint8_t␉␉mi_boot_device_part1;␊
116␉uint8_t␉␉mi_boot_device_drive;␊
117␊
118␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CMDLINE. */␊
119␉char *␉␉mi_cmdline;␊
120␊
121␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MODS. */␊
122␉uint32_t␉mi_mods_count;␊
123␉uint32_t␉mi_mods_addr; /* vaddr_t */␊
124␊
125␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_{AOUT,ELF}_SYMS. */␊
126␉uint32_t␉mi_elfshdr_num;␊
127␉uint32_t␉mi_elfshdr_size;␊
128␉uint32_t␉mi_elfshdr_addr; /* vaddr_t */␊
129␉uint32_t␉mi_elfshdr_shndx;␊
130␊
131␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MMAP. */␊
132␉uint32_t␉mi_mmap_length;␊
133␉uint32_t␉mi_mmap_addr; /* vaddr_t */␊
134␊
135␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_DRIVES. */␊
136␉uint32_t␉mi_drives_length;␊
137␉uint32_t␉mi_drives_addr; /* vaddr_t */␊
138␊
139␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CONFIG_TABLE. */␊
140␉void *␉␉unused_mi_config_table;␊
141␊
142␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_LOADER_NAME. */␊
143␉char *␉␉mi_loader_name;␊
144␊
145␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_APM. */␊
146␉void *␉␉unused_mi_apm_table;␊
147␊
148␉/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_VBE. */␊
149␉void *␉␉unused_mi_vbe_control_info;␊
150␉void *␉␉unused_mi_vbe_mode_info;␊
151␉uint32_t␉unused_mi_vbe_interface_seg; /* paddr_t */␊
152␉uint32_t␉unused_mi_vbe_interface_off; /* paddr_t */␊
153␉uint32_t␉unused_mi_vbe_interface_len;␊
154};␊
155typedef struct multiboot_info multiboot_info;␊
156␊
157/* --------------------------------------------------------------------- */␊
158␊
159struct multiboot_module {␊
160␉uint32_t␉mm_mod_start;␊
161␉uint32_t␉mm_mod_end;␊
162␉char *␉␉mm_string;␊
163␉uint32_t␉mm_reserved;␊
164};␊
165typedef struct multiboot_module multiboot_module;␊
166␊
167/*␊
168 * Drive information. This describes an entry in the drives table as␊
169 * pointed to by mi_drives_addr.␊
170 */␊
171struct multiboot_drive {␊
172␉uint32_t␉md_length;␊
173␉uint8_t␉␉md_number;␊
174␉uint8_t␉␉md_mode;␊
175␉uint16_t␉md_cylinders;␊
176␉uint8_t␉␉md_heads;␊
177␉uint8_t␉␉md_sectors;␊
178␊
179␉/* The variable-sized 'ports' field comes here, so this structure␊
180␉ * can be longer. */␊
181};␊
182␊
183/* --------------------------------------------------------------------- */␊
184␊
185/*␊
186 * Memory mapping. This describes an entry in the memory mappings table␊
187 * as pointed to by mi_mmap_addr.␊
188 *␊
189 * Be aware that mm_size specifies the size of all other fields *except*␊
190 * for mm_size. In order to jump between two different entries, you␊
191 * have to count mm_size + 4 bytes.␊
192 */␊
193struct multiboot_mmap {␊
194␉uint32_t␉mm_size;␊
195␉uint64_t␉mm_base_addr;␊
196␉uint64_t␉mm_length;␊
197␉uint32_t␉mm_type;␊
198};␊
199␊
200#endif /* !defined(__ASSEMBLER__) */␊
201␊
202/* --------------------------------------------------------------------- */␊
203␊
204

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