bootinfo.h revision 1.24
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 49 struct btinfo_common { 50 int len; 51 int type; 52 }; 53 54 struct btinfo_bootpath { 55 struct btinfo_common common; 56 char bootpath[80]; 57 }; 58 59 struct btinfo_rootdevice { 60 struct btinfo_common common; 61 char devname[16]; 62 }; 63 64 struct 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 75 struct 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 85 struct 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 97 struct btinfo_console { 98 struct btinfo_common common; 99 char devname[16]; 100 int addr; 101 int speed; 102 }; 103 104 struct btinfo_symtab { 105 struct btinfo_common common; 106 int nsym; 107 int ssym; 108 int esym; 109 }; 110 111 struct 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 */ 121 122 struct 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 */ 137 struct 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; 167 168 struct btinfo_biosgeom { 169 struct btinfo_common common; 170 int num; 171 struct bi_biosgeom_entry disk[1]; /* var len */ 172 }; 173 174 struct 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 185 186 struct btinfo_modulelist { 187 struct btinfo_common common; 188 int num; 189 uint32_t endpa; 190 /* bi_modulelist_entry list follows */ 191 }; 192 193 struct 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 }; 210 211 struct bi_userconfcommand { 212 char text[80]; 213 }; 214 215 struct btinfo_userconfcommands { 216 struct btinfo_common common; 217 int num; 218 /* bi_userconfcommand list follows */ 219 }; 220 221 /* EFI Information */ 222 struct 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 */ 237 struct 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 }; 247 248 extern struct bootinfo bootinfo; 249 250 void *lookup_bootinfo(int); 251 void aprint_bootinfo(void); 252 #endif /* _LOCORE */ 253 254 #endif /* _KERNEL */ 255
Indexes created Thu Sep 25 16:09:42 GMT 2025