bootinfo.h revision 1.24.2.1
1 /* $NetBSD: bootinfo.h,v 1.24.2.1 2017/03/20 06:57:22 pgoyette 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 #define BTINFO_EFIMEMMAP 15 43 44 #define BTINFO_STR "bootpath", "rootdevice", "bootdisk", "netif", \ 45 "console", "biosgeom", "symtab", "memmap", "bootwedge", "modulelist", \ 46 "framebuffer", "userconfcommands", "efi", "efimemmap", 47 48 #ifndef _LOCORE 49 50 struct btinfo_common { 51 int len; 52 int type; 53 }; 54 55 struct btinfo_bootpath { 56 struct btinfo_common common; 57 char bootpath[80]; 58 }; 59 60 struct btinfo_rootdevice { 61 struct btinfo_common common; 62 char devname[16]; 63 }; 64 65 struct btinfo_bootdisk { 66 struct btinfo_common common; 67 int labelsector; /* label valid if != -1 */ 68 struct { 69 uint16_t type, checksum; 70 char packname[16]; 71 } label; 72 int biosdev; 73 int partition; 74 }; 75 76 struct btinfo_bootwedge { 77 struct btinfo_common common; 78 int biosdev; 79 daddr_t startblk; 80 uint64_t nblks; 81 daddr_t matchblk; 82 uint64_t matchnblks; 83 uint8_t matchhash[16]; /* MD5 hash */ 84 } __packed; 85 86 struct btinfo_netif { 87 struct btinfo_common common; 88 char ifname[16]; 89 int bus; 90 #define BI_BUS_ISA 0 91 #define BI_BUS_PCI 1 92 union { 93 unsigned int iobase; /* ISA */ 94 unsigned int tag; /* PCI, BIOS format */ 95 } addr; 96 }; 97 98 struct btinfo_console { 99 struct btinfo_common common; 100 char devname[16]; 101 int addr; 102 int speed; 103 }; 104 105 struct btinfo_symtab { 106 struct btinfo_common common; 107 int nsym; 108 int ssym; 109 int esym; 110 }; 111 112 struct bi_memmap_entry { 113 uint64_t addr; /* beginning of block */ /* 8 */ 114 uint64_t size; /* size of block */ /* 8 */ 115 uint32_t type; /* type of block */ /* 4 */ 116 } __packed; /* == 20 */ 117 118 #define BIM_Memory 1 /* available RAM usable by OS */ 119 #define BIM_Reserved 2 /* in use or reserved by the system */ 120 #define BIM_ACPI 3 /* ACPI Reclaim memory */ 121 #define BIM_NVS 4 /* ACPI NVS memory */ 122 #define BIM_Unusable 5 /* errors have been detected */ 123 #define BIM_Disabled 6 /* not enabled */ 124 #define BIM_PMEM 7 /* Persistent memory */ 125 #define BIM_PRAM 12 /* legacy NVDIMM (OEM defined) */ 126 127 struct btinfo_memmap { 128 struct btinfo_common common; 129 int num; 130 struct bi_memmap_entry entry[1]; /* var len */ 131 }; 132 133 #if HAVE_NBTOOL_CONFIG_H 134 #include <nbinclude/sys/bootblock.h> 135 #else 136 #include <sys/bootblock.h> 137 #endif /* HAVE_NBTOOL_CONFIG_H */ 138 139 /* 140 * Structure describing disk info as seen by the BIOS. 141 */ 142 struct bi_biosgeom_entry { 143 int sec, head, cyl; /* geometry */ 144 uint64_t totsec; /* LBA sectors from ext int13 */ 145 int flags, dev; /* flags, BIOS device # */ 146 #define BI_GEOM_INVALID 0x000001 147 #define BI_GEOM_EXTINT13 0x000002 148 #ifdef BIOSDISK_EXTINFO_V3 149 #define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ 150 #define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ 151 #define BI_GEOM_BUS_ISA 0x000100 152 #define BI_GEOM_BUS_PCI 0x000200 153 #define BI_GEOM_BUS_OTHER 0x00ff00 154 #define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ 155 #define BI_GEOM_IFACE_ATA 0x010000 156 #define BI_GEOM_IFACE_ATAPI 0x020000 157 #define BI_GEOM_IFACE_SCSI 0x030000 158 #define BI_GEOM_IFACE_USB 0x040000 159 #define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ 160 #define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ 161 #define BI_GEOM_IFACE_OTHER 0xff0000 162 unsigned int cksum; /* MBR checksum */ 163 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ 164 uint64_t device_path; 165 int res0; /* future expansion; 0 now */ 166 #else 167 unsigned int cksum; /* MBR checksum */ 168 int res0, res1, res2, res3; /* future expansion; 0 now */ 169 #endif 170 struct mbr_partition mbrparts[MBR_PART_COUNT]; /* MBR itself */ 171 } __packed; 172 173 struct btinfo_biosgeom { 174 struct btinfo_common common; 175 int num; 176 struct bi_biosgeom_entry disk[1]; /* var len */ 177 }; 178 179 struct bi_modulelist_entry { 180 char path[80]; 181 int type; 182 int len; 183 uint32_t base; 184 }; 185 #define BI_MODULE_NONE 0x00 186 #define BI_MODULE_ELF 0x01 187 #define BI_MODULE_IMAGE 0x02 188 #define BI_MODULE_RND 0x03 189 #define BI_MODULE_FS 0x04 190 191 struct btinfo_modulelist { 192 struct btinfo_common common; 193 int num; 194 uint32_t endpa; 195 /* bi_modulelist_entry list follows */ 196 }; 197 198 struct btinfo_framebuffer { 199 struct btinfo_common common; 200 uint64_t physaddr; 201 uint32_t flags; 202 uint32_t width; 203 uint32_t height; 204 uint16_t stride; 205 uint8_t depth; 206 uint8_t rnum; 207 uint8_t gnum; 208 uint8_t bnum; 209 uint8_t rpos; 210 uint8_t gpos; 211 uint8_t bpos; 212 uint16_t vbemode; 213 uint8_t reserved[14]; 214 }; 215 216 struct bi_userconfcommand { 217 char text[80]; 218 }; 219 220 struct btinfo_userconfcommands { 221 struct btinfo_common common; 222 int num; 223 /* bi_userconfcommand list follows */ 224 }; 225 226 /* EFI Information */ 227 struct btinfo_efi { 228 struct btinfo_common common; 229 uint64_t systblpa; /* Physical address of the EFI System Table */ 230 uint32_t flags; 231 #define BI_EFI_32BIT __BIT(0) /* 32bit UEFI */ 232 uint8_t reserved[12]; 233 }; 234 235 struct btinfo_efimemmap { 236 struct btinfo_common common; 237 uint32_t num; /* number of memory descriptor */ 238 uint32_t version; /* version of memory descriptor */ 239 uint32_t size; /* size of memory descriptor */ 240 uint8_t memmap[1]; /* whole memory descriptors */ 241 }; 242 243 #endif /* _LOCORE */ 244 245 #ifdef _KERNEL 246 247 #define BOOTINFO_MAXSIZE 4096 248 249 #ifndef _LOCORE 250 /* 251 * Structure that holds the information passed by the boot loader. 252 */ 253 struct bootinfo { 254 /* Number of bootinfo_* entries in bi_data. */ 255 uint32_t bi_nentries; 256 257 /* Raw data of bootinfo entries. The first one (if any) is 258 * found at bi_data[0] and can be casted to (bootinfo_common *). 259 * Once this is done, the following entry is found at 'len' 260 * offset as specified by the previous entry. */ 261 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; 262 }; 263 264 extern struct bootinfo bootinfo; 265 266 void *lookup_bootinfo(int); 267 void aprint_bootinfo(void); 268 #endif /* _LOCORE */ 269 270 #endif /* _KERNEL */ 271
Indexes created Sun Oct 19 02:09:48 GMT 2025