xref: /aosp_15_r20/external/coreboot/payloads/libpayload/include/multiboot_tables.h (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c)
1 /*
2  *
3  * Copyright (C) 2008 Advanced Micro Devices, Inc.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef MULTIBOOT_TABLES_H_
30 #define MULTIBOOT_TABLES_H_
31 
32 #include <arch/types.h>
33 
34 #define MULTIBOOT_MAGIC      0x2BADB002UL
35 #define MULTIBOOT_FLAGS_MMAP    (1 << 6)
36 #define MULTIBOOT_FLAGS_CMDLINE (1 << 2)
37 #define MULTIBOOT_FLAGS_MEMINFO (1 << 0)
38 struct multiboot_header {
39 	u32 flags;
40 	u32 mem_lower;
41 	u32 mem_higher;
42 	u32 boot_device;
43 	u32 cmdline;
44 	u32 mods_count;
45 	u32 mods_addr;
46 
47 	u32 syms[4];
48 
49 	u32 mmap_length;
50 	u32 mmap_addr;
51 
52 	u32 drives_length;
53 	u32 drives_addr;
54 
55 	u32 config_table;
56 
57 	u32 boot_loader_name;
58 
59 	u32 apm_table;
60 
61 	u32 vbe_control_info;
62 	u32 vbe_mode_info;
63 	u32 vbe_mode;
64 	u32 vbe_interface_seg;
65 	u32 vbe_interface_off;
66 	u32 vbe_interface_len;
67 };
68 
69 struct multiboot_mmap {
70 	u32 size;
71 	u64 addr;
72 	u64 length;
73 	u32 type;
74 } __attribute((packed));
75 
76 #endif
77