1/* $NetBSD: bootinfo.h,v 1.24 2016/01/28 01:09:56 christos Exp $ */
2
3/*
4 * Copyright (c) 1997
5 * Matthias Drochner. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29#define BTINFO_BOOTPATH 0
30#define BTINFO_ROOTDEVICE 1
31#define BTINFO_BOOTDISK 3
32#define BTINFO_NETIF 4
33#define BTINFO_CONSOLE 6
34#define BTINFO_BIOSGEOM 7
35#define BTINFO_SYMTAB 8
36#define BTINFO_MEMMAP 9
37#define BTINFO_BOOTWEDGE 10
38#define BTINFO_MODULELIST 11
39#define BTINFO_FRAMEBUFFER 12
40#define BTINFO_USERCONFCOMMANDS 13
41#define BTINFO_EFI 14
42
43#define BTINFO_STR "bootpath", "rootdevice", "bootdisk", "netif", \
44 "console", "biosgeom", "symtab", "memmap", "bootwedge", "modulelist", \
45 "framebuffer", "userconfcommands", "efi",
46
47#ifndef _LOCORE
48
49struct btinfo_common {
50 int len;
51 int type;
52};
53
54struct btinfo_bootpath {
55 struct btinfo_common common;
56 char bootpath[80];
57};
58
59struct btinfo_rootdevice {
60 struct btinfo_common common;
61 char devname[16];
62};
63
64struct btinfo_bootdisk {
65 struct btinfo_common common;
66 int labelsector; /* label valid if != -1 */
67 struct {
68 uint16_t type, checksum;
69 char packname[16];
70 } label;
71 int biosdev;
72 int partition;
73};
74
75struct btinfo_bootwedge {
76 struct btinfo_common common;
77 int biosdev;
78 daddr_t startblk;
79 uint64_t nblks;
80 daddr_t matchblk;
81 uint64_t matchnblks;
82 uint8_t matchhash[16]; /* MD5 hash */
83} __packed;
84
85struct btinfo_netif {
86 struct btinfo_common common;
87 char ifname[16];
88 int bus;
89#define BI_BUS_ISA 0
90#define BI_BUS_PCI 1
91 union {
92 unsigned int iobase; /* ISA */
93 unsigned int tag; /* PCI, BIOS format */
94 } addr;
95};
96
97struct btinfo_console {
98 struct btinfo_common common;
99 char devname[16];
100 int addr;
101 int speed;
102};
103
104struct btinfo_symtab {
105 struct btinfo_common common;
106 int nsym;
107 int ssym;
108 int esym;
109};
110
111struct bi_memmap_entry {
112 uint64_t addr; /* beginning of block */ /* 8 */
113 uint64_t size; /* size of block */ /* 8 */
114 uint32_t type; /* type of block */ /* 4 */
115} __packed; /* == 20 */
116
117#define BIM_Memory 1 /* available RAM usable by OS */
118#define BIM_Reserved 2 /* in use or reserved by the system */
119#define BIM_ACPI 3 /* ACPI Reclaim memory */
120#define BIM_NVS 4 /* ACPI NVS memory */
121
122struct btinfo_memmap {
123 struct btinfo_common common;
124 int num;
125 struct bi_memmap_entry entry[1]; /* var len */
126};
127
128#if HAVE_NBTOOL_CONFIG_H
129#include <nbinclude/sys/bootblock.h>
130#else
131#include <sys/bootblock.h>
132#endif /* HAVE_NBTOOL_CONFIG_H */
133
134/*
135 * Structure describing disk info as seen by the BIOS.
136 */
137struct bi_biosgeom_entry {
138 int sec, head, cyl; /* geometry */
139 uint64_t totsec; /* LBA sectors from ext int13 */
140 int flags, dev; /* flags, BIOS device # */
141#define BI_GEOM_INVALID 0x000001
142#define BI_GEOM_EXTINT13 0x000002
143#ifdef BIOSDISK_EXTINFO_V3
144#define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */
145#define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */
146#define BI_GEOM_BUS_ISA 0x000100
147#define BI_GEOM_BUS_PCI 0x000200
148#define BI_GEOM_BUS_OTHER 0x00ff00
149#define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */
150#define BI_GEOM_IFACE_ATA 0x010000
151#define BI_GEOM_IFACE_ATAPI 0x020000
152#define BI_GEOM_IFACE_SCSI 0x030000
153#define BI_GEOM_IFACE_USB 0x040000
154#define BI_GEOM_IFACE_1394 0x050000 /* Firewire */
155#define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */
156#define BI_GEOM_IFACE_OTHER 0xff0000
157 unsigned int cksum; /* MBR checksum */
158 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */
159 uint64_t device_path;
160 int res0; /* future expansion; 0 now */
161#else
162 unsigned int cksum; /* MBR checksum */
163 int res0, res1, res2, res3; /* future expansion; 0 now */
164#endif
165 struct mbr_partition mbrparts[MBR_PART_COUNT]; /* MBR itself */
166} __packed;
167
168struct btinfo_biosgeom {
169 struct btinfo_common common;
170 int num;
171 struct bi_biosgeom_entry disk[1]; /* var len */
172};
173
174struct bi_modulelist_entry {
175 char path[80];
176 int type;
177 int len;
178 uint32_t base;
179};
180#define BI_MODULE_NONE 0x00
181#define BI_MODULE_ELF 0x01
182#define BI_MODULE_IMAGE 0x02
183#define BI_MODULE_RND 0x03
184#define BI_MODULE_FS 0x04
185
186struct btinfo_modulelist {
187 struct btinfo_common common;
188 int num;
189 uint32_t endpa;
190 /* bi_modulelist_entry list follows */
191};
192
193struct btinfo_framebuffer {
194 struct btinfo_common common;
195 uint64_t physaddr;
196 uint32_t flags;
197 uint32_t width;
198 uint32_t height;
199 uint16_t stride;
200 uint8_t depth;
201 uint8_t rnum;
202 uint8_t gnum;
203 uint8_t bnum;
204 uint8_t rpos;
205 uint8_t gpos;
206 uint8_t bpos;
207 uint16_t vbemode;
208 uint8_t reserved[14];
209};
210
211struct bi_userconfcommand {
212 char text[80];
213};
214
215struct btinfo_userconfcommands {
216 struct btinfo_common common;
217 int num;
218 /* bi_userconfcommand list follows */
219};
220
221/* EFI Information */
222struct btinfo_efi {
223 struct btinfo_common common;
224 paddr_t bi_systbl; /* Physical address of the EFI System Table */
225};
226
227#endif /* _LOCORE */
228
229#ifdef _KERNEL
230
231#define BOOTINFO_MAXSIZE 4096
232
233#ifndef _LOCORE
234/*
235 * Structure that holds the information passed by the boot loader.
236 */
237struct bootinfo {
238 /* Number of bootinfo_* entries in bi_data. */
239 uint32_t bi_nentries;
240
241 /* Raw data of bootinfo entries. The first one (if any) is
242 * found at bi_data[0] and can be casted to (bootinfo_common *).
243 * Once this is done, the following entry is found at 'len'
244 * offset as specified by the previous entry. */
245 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)];
246};
247
248extern struct bootinfo bootinfo;
249
250void *lookup_bootinfo(int);
251void aprint_bootinfo(void);
252#endif /* _LOCORE */
253
254#endif /* _KERNEL */
255