1 /* $NetBSD: bootinfo.h,v 1.30 2019/06/21 02:08:55 nonaka 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 #define BTINFO_PREKERN 16 44 45 #define BTINFO_STR "bootpath", "rootdevice", "bootdisk", "netif", \ 46 "console", "biosgeom", "symtab", "memmap", "bootwedge", "modulelist", \ 47 "framebuffer", "userconfcommands", "efi", "efimemmap", "prekern", 48 49 #ifndef _LOCORE 50 51 struct btinfo_common { 52 int len; 53 int type; 54 }; 55 56 struct btinfo_bootpath { 57 struct btinfo_common common; 58 char bootpath[80]; 59 }; 60 61 struct btinfo_rootdevice { 62 struct btinfo_common common; 63 char devname[16]; 64 }; 65 66 struct btinfo_bootdisk { 67 struct btinfo_common common; 68 int labelsector; /* label valid if != -1 */ 69 struct { 70 uint16_t type, checksum; 71 char packname[16]; 72 } label; 73 int biosdev; 74 int partition; 75 }; 76 77 struct btinfo_bootwedge { 78 struct btinfo_common common; 79 int biosdev; 80 daddr_t startblk; 81 uint64_t nblks; 82 daddr_t matchblk; 83 uint64_t matchnblks; 84 uint8_t matchhash[16]; /* MD5 hash */ 85 } __packed; 86 87 struct btinfo_netif { 88 struct btinfo_common common; 89 char ifname[16]; 90 int bus; 91 #define BI_BUS_ISA 0 92 #define BI_BUS_PCI 1 93 union { 94 unsigned int iobase; /* ISA */ 95 unsigned int tag; /* PCI, BIOS format */ 96 } addr; 97 }; 98 99 struct btinfo_console { 100 struct btinfo_common common; 101 char devname[16]; 102 int addr; 103 int speed; 104 }; 105 106 struct btinfo_symtab { 107 struct btinfo_common common; 108 int nsym; 109 int ssym; 110 int esym; 111 }; 112 113 struct bi_memmap_entry { 114 uint64_t addr; /* beginning of block */ /* 8 */ 115 uint64_t size; /* size of block */ /* 8 */ 116 uint32_t type; /* type of block */ /* 4 */ 117 } __packed; /* == 20 */ 118 119 #define BIM_Memory 1 /* available RAM usable by OS */ 120 #define BIM_Reserved 2 /* in use or reserved by the system */ 121 #define BIM_ACPI 3 /* ACPI Reclaim memory */ 122 #define BIM_NVS 4 /* ACPI NVS memory */ 123 #define BIM_Unusable 5 /* errors have been detected */ 124 #define BIM_Disabled 6 /* not enabled */ 125 #define BIM_PMEM 7 /* Persistent memory */ 126 #define BIM_PRAM 12 /* legacy NVDIMM (OEM defined) */ 127 128 struct btinfo_memmap { 129 struct btinfo_common common; 130 int num; 131 struct bi_memmap_entry entry[1]; /* var len */ 132 }; 133 134 #if HAVE_NBTOOL_CONFIG_H 135 #include <nbinclude/sys/bootblock.h> 136 #else 137 #include <sys/bootblock.h> 138 #endif /* HAVE_NBTOOL_CONFIG_H */ 139 140 /* 141 * Structure describing disk info as seen by the BIOS. 142 */ 143 struct bi_biosgeom_entry { 144 int sec, head, cyl; /* geometry */ 145 uint64_t totsec; /* LBA sectors from ext int13 */ 146 int flags, dev; /* flags, BIOS device # */ 147 #define BI_GEOM_INVALID 0x000001 148 #define BI_GEOM_EXTINT13 0x000002 149 #ifdef BIOSDISK_EXTINFO_V3 150 #define BI_GEOM_BADCKSUM 0x000004 /* v3.x checksum invalid */ 151 #define BI_GEOM_BUS_MASK 0x00ff00 /* connecting bus type */ 152 #define BI_GEOM_BUS_ISA 0x000100 153 #define BI_GEOM_BUS_PCI 0x000200 154 #define BI_GEOM_BUS_OTHER 0x00ff00 155 #define BI_GEOM_IFACE_MASK 0xff0000 /* interface type */ 156 #define BI_GEOM_IFACE_ATA 0x010000 157 #define BI_GEOM_IFACE_ATAPI 0x020000 158 #define BI_GEOM_IFACE_SCSI 0x030000 159 #define BI_GEOM_IFACE_USB 0x040000 160 #define BI_GEOM_IFACE_1394 0x050000 /* Firewire */ 161 #define BI_GEOM_IFACE_FIBRE 0x060000 /* Fibre channel */ 162 #define BI_GEOM_IFACE_OTHER 0xff0000 163 unsigned int cksum; /* MBR checksum */ 164 unsigned int interface_path; /* ISA iobase PCI bus/dev/fun */ 165 uint64_t device_path; 166 int res0; /* future expansion; 0 now */ 167 #else 168 unsigned int cksum; /* MBR checksum */ 169 int res0, res1, res2, res3; /* future expansion; 0 now */ 170 #endif 171 struct mbr_partition mbrparts[MBR_PART_COUNT]; /* MBR itself */ 172 } __packed; 173 174 struct btinfo_biosgeom { 175 struct btinfo_common common; 176 int num; 177 struct bi_biosgeom_entry disk[1]; /* var len */ 178 }; 179 180 struct bi_modulelist_entry { 181 char path[80]; 182 int type; 183 int len; 184 uint32_t base; 185 }; 186 #define BI_MODULE_NONE 0x00 187 #define BI_MODULE_ELF 0x01 188 #define BI_MODULE_IMAGE 0x02 189 #define BI_MODULE_RND 0x03 190 #define BI_MODULE_FS 0x04 191 192 struct btinfo_modulelist { 193 struct btinfo_common common; 194 int num; 195 uint32_t endpa; 196 /* bi_modulelist_entry list follows */ 197 }; 198 199 struct btinfo_framebuffer { 200 struct btinfo_common common; 201 uint64_t physaddr; 202 uint32_t flags; 203 uint32_t width; 204 uint32_t height; 205 uint16_t stride; 206 uint8_t depth; 207 uint8_t rnum; 208 uint8_t gnum; 209 uint8_t bnum; 210 uint8_t rpos; 211 uint8_t gpos; 212 uint8_t bpos; 213 uint16_t vbemode; 214 uint8_t reserved[14]; 215 }; 216 217 struct bi_userconfcommand { 218 char text[80]; 219 }; 220 221 struct btinfo_userconfcommands { 222 struct btinfo_common common; 223 int num; 224 /* bi_userconfcommand list follows */ 225 }; 226 227 /* EFI Information */ 228 struct btinfo_efi { 229 struct btinfo_common common; 230 uint64_t systblpa; /* Physical address of the EFI System Table */ 231 uint32_t flags; 232 #define BI_EFI_32BIT __BIT(0) /* 32bit UEFI */ 233 uint8_t reserved[12]; 234 }; 235 236 struct btinfo_prekern { 237 struct btinfo_common common; 238 uint32_t kernpa_start; 239 uint32_t kernpa_end; 240 }; 241 242 struct btinfo_efimemmap { 243 struct btinfo_common common; 244 uint32_t num; /* number of memory descriptor */ 245 uint32_t version; /* version of memory descriptor */ 246 uint32_t size; /* size of memory descriptor */ 247 uint8_t memmap[1]; /* whole memory descriptors */ 248 }; 249 250 #endif /* _LOCORE */ 251 252 #ifdef _KERNEL 253 254 #define BOOTINFO_MAXSIZE 16384 255 256 #ifndef _LOCORE 257 /* 258 * Structure that holds the information passed by the boot loader. 259 */ 260 struct bootinfo { 261 /* Number of bootinfo_* entries in bi_data. */ 262 uint32_t bi_nentries; 263 264 /* Raw data of bootinfo entries. The first one (if any) is 265 * found at bi_data[0] and can be casted to (bootinfo_common *). 266 * Once this is done, the following entry is found at 'len' 267 * offset as specified by the previous entry. */ 268 uint8_t bi_data[BOOTINFO_MAXSIZE - sizeof(uint32_t)]; 269 }; 270 271 extern struct bootinfo bootinfo; 272 273 void *lookup_bootinfo(int); 274 void aprint_bootinfo(void); 275 #endif /* _LOCORE */ 276 277 #endif /* _KERNEL */ 278