| 1 | /* $NetBSD: x86_autoconf.c,v 1.75 2016/09/21 00:00:07 jmcneill Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1990 The Regents of the University of California. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to Berkeley by |
| 8 | * William Jolitz. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * 3. Neither the name of the University nor the names of its contributors |
| 19 | * may be used to endorse or promote products derived from this software |
| 20 | * without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 32 | * SUCH DAMAGE. |
| 33 | * |
| 34 | * @(#)autoconf.c 7.1 (Berkeley) 5/9/91 |
| 35 | */ |
| 36 | |
| 37 | #include <sys/cdefs.h> |
| 38 | __KERNEL_RCSID(0, "$NetBSD: x86_autoconf.c,v 1.75 2016/09/21 00:00:07 jmcneill Exp $" ); |
| 39 | |
| 40 | #include <sys/param.h> |
| 41 | #include <sys/systm.h> |
| 42 | #include <sys/device.h> |
| 43 | #include <sys/disklabel.h> |
| 44 | #include <sys/conf.h> |
| 45 | #include <sys/malloc.h> |
| 46 | #include <sys/vnode.h> |
| 47 | #include <sys/fcntl.h> |
| 48 | #include <sys/disk.h> |
| 49 | #include <sys/proc.h> |
| 50 | #include <sys/md5.h> |
| 51 | #include <sys/kauth.h> |
| 52 | |
| 53 | #include <machine/autoconf.h> |
| 54 | #include <machine/bootinfo.h> |
| 55 | #include <machine/pio.h> |
| 56 | |
| 57 | #include "acpica.h" |
| 58 | #include "wsdisplay.h" |
| 59 | |
| 60 | #if NACPICA > 0 |
| 61 | #include <dev/acpi/acpivar.h> |
| 62 | #endif |
| 63 | |
| 64 | struct disklist *x86_alldisks; |
| 65 | int x86_ndisks; |
| 66 | |
| 67 | #ifdef DEBUG_GEOM |
| 68 | #define DPRINTF(a) printf a |
| 69 | #else |
| 70 | #define DPRINTF(a) |
| 71 | #endif |
| 72 | |
| 73 | static void |
| 74 | dmatch(const char *func, device_t dv) |
| 75 | { |
| 76 | |
| 77 | printf("WARNING: %s: double match for boot device (%s, %s)\n" , |
| 78 | func, device_xname(booted_device), device_xname(dv)); |
| 79 | } |
| 80 | |
| 81 | static int |
| 82 | is_valid_disk(device_t dv) |
| 83 | { |
| 84 | |
| 85 | if (device_class(dv) != DV_DISK) |
| 86 | return (0); |
| 87 | |
| 88 | return (device_is_a(dv, "dk" ) || |
| 89 | device_is_a(dv, "sd" ) || |
| 90 | device_is_a(dv, "wd" ) || |
| 91 | device_is_a(dv, "ld" ) || |
| 92 | device_is_a(dv, "ed" )); |
| 93 | } |
| 94 | |
| 95 | /* |
| 96 | * XXX Ugly bit of code. But, this is the only safe time that the |
| 97 | * match between BIOS disks and native disks can be done. |
| 98 | */ |
| 99 | static void |
| 100 | matchbiosdisks(void) |
| 101 | { |
| 102 | struct btinfo_biosgeom *big; |
| 103 | struct bi_biosgeom_entry *be; |
| 104 | device_t dv; |
| 105 | deviter_t di; |
| 106 | int i, ck, error, m, n; |
| 107 | struct vnode *tv; |
| 108 | char mbr[DEV_BSIZE]; |
| 109 | int dklist_size; |
| 110 | int numbig; |
| 111 | |
| 112 | if (x86_ndisks) |
| 113 | return; |
| 114 | big = lookup_bootinfo(BTINFO_BIOSGEOM); |
| 115 | |
| 116 | numbig = big ? big->num : 0; |
| 117 | |
| 118 | /* First, count all native disks. */ |
| 119 | for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL; |
| 120 | dv = deviter_next(&di)) { |
| 121 | if (is_valid_disk(dv)) |
| 122 | x86_ndisks++; |
| 123 | } |
| 124 | deviter_release(&di); |
| 125 | |
| 126 | dklist_size = sizeof(struct disklist) + (x86_ndisks - 1) * |
| 127 | sizeof(struct nativedisk_info); |
| 128 | |
| 129 | /* XXX M_TEMP is wrong */ |
| 130 | x86_alldisks = malloc(dklist_size, M_TEMP, M_NOWAIT | M_ZERO); |
| 131 | if (x86_alldisks == NULL) |
| 132 | return; |
| 133 | |
| 134 | x86_alldisks->dl_nnativedisks = x86_ndisks; |
| 135 | x86_alldisks->dl_nbiosdisks = numbig; |
| 136 | for (i = 0; i < numbig; i++) { |
| 137 | x86_alldisks->dl_biosdisks[i].bi_dev = big->disk[i].dev; |
| 138 | x86_alldisks->dl_biosdisks[i].bi_sec = big->disk[i].sec; |
| 139 | x86_alldisks->dl_biosdisks[i].bi_head = big->disk[i].head; |
| 140 | x86_alldisks->dl_biosdisks[i].bi_cyl = big->disk[i].cyl; |
| 141 | x86_alldisks->dl_biosdisks[i].bi_lbasecs = big->disk[i].totsec; |
| 142 | x86_alldisks->dl_biosdisks[i].bi_flags = big->disk[i].flags; |
| 143 | DPRINTF(("%s: disk %x: flags %x" , |
| 144 | __func__, big->disk[i].dev, big->disk[i].flags)); |
| 145 | #ifdef BIOSDISK_EXTINFO_V3 |
| 146 | DPRINTF((", interface %x, device %llx" , |
| 147 | big->disk[i].interface_path, big->disk[i].device_path)); |
| 148 | #endif |
| 149 | DPRINTF(("\n" )); |
| 150 | } |
| 151 | |
| 152 | /* XXX Code duplication from findroot(). */ |
| 153 | n = -1; |
| 154 | for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL; |
| 155 | dv = deviter_next(&di)) { |
| 156 | if (!is_valid_disk(dv)) |
| 157 | continue; |
| 158 | DPRINTF(("%s: trying to match (%s) %s: " , __func__, |
| 159 | device_xname(dv), device_cfdata(dv)->cf_name)); |
| 160 | n++; |
| 161 | snprintf(x86_alldisks->dl_nativedisks[n].ni_devname, |
| 162 | sizeof(x86_alldisks->dl_nativedisks[n].ni_devname), |
| 163 | "%s" , device_xname(dv)); |
| 164 | |
| 165 | if ((tv = opendisk(dv)) == NULL) { |
| 166 | DPRINTF(("cannot open\n" )); |
| 167 | continue; |
| 168 | } |
| 169 | |
| 170 | error = vn_rdwr(UIO_READ, tv, mbr, DEV_BSIZE, 0, UIO_SYSSPACE, |
| 171 | 0, NOCRED, NULL, NULL); |
| 172 | VOP_CLOSE(tv, FREAD, NOCRED); |
| 173 | vput(tv); |
| 174 | if (error) { |
| 175 | DPRINTF(("MBR read failure %d\n" , error)); |
| 176 | continue; |
| 177 | } |
| 178 | |
| 179 | for (ck = i = 0; i < DEV_BSIZE; i++) |
| 180 | ck += mbr[i]; |
| 181 | for (m = i = 0; i < numbig; i++) { |
| 182 | be = &big->disk[i]; |
| 183 | if (be->flags & BI_GEOM_INVALID) |
| 184 | continue; |
| 185 | DPRINTF(("matched with %d dev ck %x bios ck %x\n" , |
| 186 | i, ck, be->cksum)); |
| 187 | if (be->cksum == ck && memcmp(&mbr[MBR_PART_OFFSET], |
| 188 | be->mbrparts, MBR_PART_COUNT |
| 189 | * sizeof(struct mbr_partition)) == 0) { |
| 190 | DPRINTF(("%s: matched BIOS disk %x with %s\n" , |
| 191 | __func__, be->dev, device_xname(dv))); |
| 192 | x86_alldisks->dl_nativedisks[n]. |
| 193 | ni_biosmatches[m++] = i; |
| 194 | } |
| 195 | } |
| 196 | x86_alldisks->dl_nativedisks[n].ni_nmatches = m; |
| 197 | } |
| 198 | deviter_release(&di); |
| 199 | } |
| 200 | |
| 201 | /* |
| 202 | * Helper function for findroot(): |
| 203 | * Return non-zero if wedge device matches bootinfo. |
| 204 | */ |
| 205 | static int |
| 206 | match_bootwedge(device_t dv, struct btinfo_bootwedge *biw) |
| 207 | { |
| 208 | MD5_CTX ctx; |
| 209 | struct vnode *tmpvn; |
| 210 | int error; |
| 211 | uint8_t bf[DEV_BSIZE]; |
| 212 | uint8_t hash[16]; |
| 213 | int found = 0; |
| 214 | daddr_t blk; |
| 215 | uint64_t nblks; |
| 216 | |
| 217 | /* |
| 218 | * If the boot loader didn't specify the sector, abort. |
| 219 | */ |
| 220 | if (biw->matchblk == -1) { |
| 221 | DPRINTF(("%s: no sector specified for %s\n" , __func__, |
| 222 | device_xname(dv))); |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | if ((tmpvn = opendisk(dv)) == NULL) { |
| 227 | DPRINTF(("%s: can't open %s\n" , __func__, device_xname(dv))); |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | MD5Init(&ctx); |
| 232 | for (blk = biw->matchblk, nblks = biw->matchnblks; |
| 233 | nblks != 0; nblks--, blk++) { |
| 234 | error = vn_rdwr(UIO_READ, tmpvn, (void *) bf, |
| 235 | sizeof(bf), blk * DEV_BSIZE, UIO_SYSSPACE, |
| 236 | 0, NOCRED, NULL, NULL); |
| 237 | if (error) { |
| 238 | if (error != EINVAL) { |
| 239 | aprint_error("%s: unable to read block %" |
| 240 | PRId64 " " "of dev %s (%d)\n" , __func__, |
| 241 | blk, device_xname(dv), error); |
| 242 | } |
| 243 | goto closeout; |
| 244 | } |
| 245 | MD5Update(&ctx, bf, sizeof(bf)); |
| 246 | } |
| 247 | MD5Final(hash, &ctx); |
| 248 | |
| 249 | /* Compare with the provided hash. */ |
| 250 | found = memcmp(biw->matchhash, hash, sizeof(hash)) == 0; |
| 251 | DPRINTF(("%s: %s found=%d\n" , __func__, device_xname(dv), found)); |
| 252 | |
| 253 | closeout: |
| 254 | VOP_CLOSE(tmpvn, FREAD, NOCRED); |
| 255 | vput(tmpvn); |
| 256 | return found; |
| 257 | } |
| 258 | |
| 259 | /* |
| 260 | * Helper function for findroot(): |
| 261 | * Return non-zero if disk device matches bootinfo. |
| 262 | */ |
| 263 | static int |
| 264 | match_bootdisk(device_t dv, struct btinfo_bootdisk *bid) |
| 265 | { |
| 266 | struct vnode *tmpvn; |
| 267 | int error; |
| 268 | struct disklabel label; |
| 269 | int found = 0; |
| 270 | |
| 271 | if (device_is_a(dv, "dk" )) { |
| 272 | DPRINTF(("%s: dk %s\n" , __func__, device_xname(dv))); |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | /* |
| 277 | * A disklabel is required here. The boot loader doesn't refuse |
| 278 | * to boot from a disk without a label, but this is normally not |
| 279 | * wanted. |
| 280 | */ |
| 281 | if (bid->labelsector == -1) { |
| 282 | DPRINTF(("%s: no label %s\n" , __func__, device_xname(dv))); |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | if ((tmpvn = opendisk(dv)) == NULL) { |
| 287 | DPRINTF(("%s: can't open %s\n" , __func__, device_xname(dv))); |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | error = VOP_IOCTL(tmpvn, DIOCGDINFO, &label, FREAD, NOCRED); |
| 292 | if (error) { |
| 293 | /* |
| 294 | * XXX Can't happen -- open() would have errored out |
| 295 | * or faked one up. |
| 296 | */ |
| 297 | printf("%s: can't get label for dev %s (%d)\n" , __func__, |
| 298 | device_xname(dv), error); |
| 299 | goto closeout; |
| 300 | } |
| 301 | |
| 302 | /* Compare with our data. */ |
| 303 | if (label.d_type == bid->label.type && |
| 304 | label.d_checksum == bid->label.checksum && |
| 305 | strncmp(label.d_packname, bid->label.packname, 16) == 0) |
| 306 | found = 1; |
| 307 | |
| 308 | DPRINTF(("%s: %s found=%d\n" , __func__, device_xname(dv), found)); |
| 309 | closeout: |
| 310 | VOP_CLOSE(tmpvn, FREAD, NOCRED); |
| 311 | vput(tmpvn); |
| 312 | return (found); |
| 313 | } |
| 314 | |
| 315 | /* |
| 316 | * Attempt to find the device from which we were booted. If we can do so, |
| 317 | * and not instructed not to do so, change rootdev to correspond to the |
| 318 | * load device. |
| 319 | */ |
| 320 | static void |
| 321 | findroot(void) |
| 322 | { |
| 323 | struct btinfo_rootdevice *biv; |
| 324 | struct btinfo_bootdisk *bid; |
| 325 | struct btinfo_bootwedge *biw; |
| 326 | struct btinfo_biosgeom *big; |
| 327 | device_t dv; |
| 328 | deviter_t di; |
| 329 | static char bootspecbuf[sizeof(biv->devname)+1]; |
| 330 | |
| 331 | if (booted_device) |
| 332 | return; |
| 333 | |
| 334 | if (lookup_bootinfo(BTINFO_NETIF) != NULL) { |
| 335 | /* |
| 336 | * We got netboot interface information, but device_register() |
| 337 | * failed to match it to a configured device. Boot disk |
| 338 | * information cannot be present at the same time, so give |
| 339 | * up. |
| 340 | */ |
| 341 | printf("%s: netboot interface not found.\n" , __func__); |
| 342 | return; |
| 343 | } |
| 344 | |
| 345 | if ((biv = lookup_bootinfo(BTINFO_ROOTDEVICE)) != NULL) { |
| 346 | for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); |
| 347 | dv != NULL; |
| 348 | dv = deviter_next(&di)) { |
| 349 | cfdata_t cd; |
| 350 | size_t len; |
| 351 | |
| 352 | if (device_class(dv) != DV_DISK) |
| 353 | continue; |
| 354 | |
| 355 | cd = device_cfdata(dv); |
| 356 | len = strlen(cd->cf_name); |
| 357 | |
| 358 | if (strncmp(cd->cf_name, biv->devname, len) == 0 && |
| 359 | biv->devname[len] - '0' == device_unit(dv)) { |
| 360 | booted_device = dv; |
| 361 | booted_partition = biv->devname[len + 1] - 'a'; |
| 362 | booted_nblks = 0; |
| 363 | break; |
| 364 | } |
| 365 | } |
| 366 | DPRINTF(("%s: BTINFO_ROOTDEVICE %s\n" , __func__, |
| 367 | booted_device ? device_xname(booted_device) : "not found" )); |
| 368 | deviter_release(&di); |
| 369 | if (dv != NULL) |
| 370 | return; |
| 371 | |
| 372 | if (biv->devname[0] != '\0') { |
| 373 | strlcpy(bootspecbuf, biv->devname, sizeof(bootspecbuf)); |
| 374 | bootspec = bootspecbuf; |
| 375 | return; |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | bid = lookup_bootinfo(BTINFO_BOOTDISK); |
| 380 | biw = lookup_bootinfo(BTINFO_BOOTWEDGE); |
| 381 | |
| 382 | if (biw != NULL) { |
| 383 | /* |
| 384 | * Scan all disk devices for ones that match the passed data. |
| 385 | * Don't break if one is found, to get possible multiple |
| 386 | * matches - for problem tracking. Use the first match anyway |
| 387 | * because lower devices numbers are more likely to be the |
| 388 | * boot device. |
| 389 | */ |
| 390 | for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); |
| 391 | dv != NULL; |
| 392 | dv = deviter_next(&di)) { |
| 393 | if (is_valid_disk(dv)) { |
| 394 | /* |
| 395 | * Don't trust BIOS device numbers, try |
| 396 | * to match the information passed by the |
| 397 | * boot loader instead. |
| 398 | */ |
| 399 | if ((biw->biosdev & 0x80) == 0 || |
| 400 | match_bootwedge(dv, biw) == 0) |
| 401 | continue; |
| 402 | goto bootwedge_found; |
| 403 | } |
| 404 | |
| 405 | continue; |
| 406 | bootwedge_found: |
| 407 | if (booted_device) { |
| 408 | dmatch(__func__, dv); |
| 409 | continue; |
| 410 | } |
| 411 | booted_device = dv; |
| 412 | booted_partition = bid != NULL ? bid->partition : 0; |
| 413 | booted_nblks = biw->nblks; |
| 414 | booted_startblk = biw->startblk; |
| 415 | } |
| 416 | deviter_release(&di); |
| 417 | |
| 418 | DPRINTF(("%s: BTINFO_BOOTWEDGE %s\n" , __func__, |
| 419 | booted_device ? device_xname(booted_device) : "not found" )); |
| 420 | if (booted_nblks) |
| 421 | return; |
| 422 | } |
| 423 | |
| 424 | if (bid != NULL) { |
| 425 | /* |
| 426 | * Scan all disk devices for ones that match the passed data. |
| 427 | * Don't break if one is found, to get possible multiple |
| 428 | * matches - for problem tracking. Use the first match anyway |
| 429 | * because lower device numbers are more likely to be the |
| 430 | * boot device. |
| 431 | */ |
| 432 | for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); |
| 433 | dv != NULL; |
| 434 | dv = deviter_next(&di)) { |
| 435 | |
| 436 | if (device_is_a(dv, "fd" ) && |
| 437 | device_class(dv) == DV_DISK) { |
| 438 | /* |
| 439 | * Assume the configured unit number matches |
| 440 | * the BIOS device number. (This is the old |
| 441 | * behavior.) Needs some ideas how to handle |
| 442 | * the BIOS's "swap floppy drive" options. |
| 443 | */ |
| 444 | /* XXX device_unit() abuse */ |
| 445 | if ((bid->biosdev & 0x80) != 0 || |
| 446 | device_unit(dv) != bid->biosdev) |
| 447 | continue; |
| 448 | goto bootdisk_found; |
| 449 | } |
| 450 | |
| 451 | if (is_valid_disk(dv)) { |
| 452 | /* |
| 453 | * Don't trust BIOS device numbers, try |
| 454 | * to match the information passed by the |
| 455 | * boot loader instead. |
| 456 | */ |
| 457 | if ((bid->biosdev & 0x80) == 0 || |
| 458 | match_bootdisk(dv, bid) == 0) |
| 459 | continue; |
| 460 | goto bootdisk_found; |
| 461 | } |
| 462 | |
| 463 | continue; |
| 464 | bootdisk_found: |
| 465 | if (booted_device) { |
| 466 | dmatch(__func__, dv); |
| 467 | continue; |
| 468 | } |
| 469 | booted_device = dv; |
| 470 | booted_partition = bid->partition; |
| 471 | booted_nblks = 0; |
| 472 | } |
| 473 | deviter_release(&di); |
| 474 | |
| 475 | DPRINTF(("%s: BTINFO_BOOTDISK %s\n" , __func__, |
| 476 | booted_device ? device_xname(booted_device) : "not found" )); |
| 477 | if (booted_device) |
| 478 | return; |
| 479 | |
| 480 | /* |
| 481 | * No booted device found; check CD-ROM boot at last. |
| 482 | * |
| 483 | * Our bootloader assumes CD-ROM boot if biosdev is larger |
| 484 | * or equal than the number of hard drives recognized by the |
| 485 | * BIOS. The number of drives can be found in BTINFO_BIOSGEOM |
| 486 | * here. For example, if we have wd0, wd1, and cd0: |
| 487 | * |
| 488 | * big->num = 2 (for wd0 and wd1) |
| 489 | * bid->biosdev = 0x80 (wd0) |
| 490 | * bid->biosdev = 0x81 (wd1) |
| 491 | * bid->biosdev = 0x82 (cd0) |
| 492 | * |
| 493 | * See src/sys/arch/i386/stand/boot/devopen.c and |
| 494 | * src/sys/arch/i386/stand/lib/bootinfo_biosgeom.c . |
| 495 | */ |
| 496 | if ((big = lookup_bootinfo(BTINFO_BIOSGEOM)) != NULL && |
| 497 | bid->biosdev >= 0x80 + big->num) { |
| 498 | /* |
| 499 | * XXX |
| 500 | * There is no proper way to detect which unit is |
| 501 | * recognized as a bootable CD-ROM drive by the BIOS. |
| 502 | * Assume the first unit is the one. |
| 503 | */ |
| 504 | for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); |
| 505 | dv != NULL; |
| 506 | dv = deviter_next(&di)) { |
| 507 | if (device_class(dv) == DV_DISK && |
| 508 | device_is_a(dv, "cd" )) { |
| 509 | booted_device = dv; |
| 510 | booted_partition = 0; |
| 511 | booted_nblks = 0; |
| 512 | break; |
| 513 | } |
| 514 | } |
| 515 | deviter_release(&di); |
| 516 | DPRINTF(("%s: BTINFO_BIOSGEOM %s\n" , __func__, |
| 517 | booted_device ? device_xname(booted_device) : |
| 518 | "not found" )); |
| 519 | } |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | void |
| 524 | cpu_bootconf(void) |
| 525 | { |
| 526 | findroot(); |
| 527 | matchbiosdisks(); |
| 528 | } |
| 529 | |
| 530 | void |
| 531 | cpu_rootconf(void) |
| 532 | { |
| 533 | cpu_bootconf(); |
| 534 | |
| 535 | aprint_normal("boot device: %s\n" , |
| 536 | booted_device ? device_xname(booted_device) : "<unknown>" ); |
| 537 | rootconf(); |
| 538 | } |
| 539 | |
| 540 | void |
| 541 | device_register(device_t dev, void *aux) |
| 542 | { |
| 543 | device_t isaboot, pciboot; |
| 544 | |
| 545 | device_acpi_register(dev, aux); |
| 546 | |
| 547 | isaboot = device_isa_register(dev, aux); |
| 548 | pciboot = device_pci_register(dev, aux); |
| 549 | |
| 550 | if (isaboot == NULL && pciboot == NULL) |
| 551 | return; |
| 552 | |
| 553 | if (booted_device != NULL) { |
| 554 | /* XXX should be a panic() */ |
| 555 | dmatch(__func__, dev); |
| 556 | } else |
| 557 | booted_device = (isaboot != NULL) ? isaboot : pciboot; |
| 558 | } |
| 559 | |