1 /* $NetBSD: exec.c,v 1.81 2024/09/11 20:15:36 andvar Exp $ */ 2 3 /* 4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. 5 * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Copyright (c) 1982, 1986, 1990, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. Neither the name of the University nor the names of its contributors 42 * may be used to endorse or promote products derived from this software 43 * without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 * 57 * @(#)boot.c 8.1 (Berkeley) 6/10/93 58 */ 59 60 /* 61 * Copyright (c) 1996 62 * Matthias Drochner. All rights reserved. 63 * Copyright (c) 1996 64 * Perry E. Metzger. All rights reserved. 65 * 66 * Redistribution and use in source and binary forms, with or without 67 * modification, are permitted provided that the following conditions 68 * are met: 69 * 1. Redistributions of source code must retain the above copyright 70 * notice, this list of conditions and the following disclaimer. 71 * 2. Redistributions in binary form must reproduce the above copyright 72 * notice, this list of conditions and the following disclaimer in the 73 * documentation and/or other materials provided with the distribution. 74 * 75 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 76 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 77 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 78 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 79 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 80 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 81 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 82 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 83 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 84 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 85 * SUCH DAMAGE. 86 * 87 * @(#)boot.c 8.1 (Berkeley) 6/10/93 88 */ 89 90 /* 91 * Starts a NetBSD ELF kernel. The low level startup is done in startprog.S. 92 */ 93 94 #include <sys/param.h> 95 #include <sys/reboot.h> 96 97 #include <lib/libsa/stand.h> 98 #include <lib/libkern/libkern.h> 99 100 #include "loadfile.h" 101 #include "libi386.h" 102 #include "bootinfo.h" 103 #include "bootmod.h" 104 #include "vbe.h" 105 #ifdef SUPPORT_PS2 106 #include "biosmca.h" 107 #endif 108 #ifdef EFIBOOT 109 #include "efiboot.h" 110 #include "biosdisk.h" 111 #include "efidisk.h" 112 #undef DEBUG /* XXX */ 113 #endif 114 115 #define BOOT_NARGS 6 116 117 #ifndef PAGE_SIZE 118 #define PAGE_SIZE 4096 119 #endif 120 121 #define MODULE_WARNING_SEC 5 122 123 #define MAXMODNAME 32 /* from <sys/module.h> */ 124 125 extern struct btinfo_console btinfo_console; 126 extern struct btinfo_rootdevice bi_root; 127 128 boot_module_t *boot_modules; 129 bool boot_modules_enabled = true; 130 bool kernel_loaded; 131 132 typedef struct userconf_command { 133 char *uc_text; 134 size_t uc_len; 135 struct userconf_command *uc_next; 136 } userconf_command_t; 137 userconf_command_t *userconf_commands = NULL; 138 139 struct btinfo_framebuffer btinfo_framebuffer; 140 141 struct btinfo_modulelist *btinfo_modulelist; 142 static size_t btinfo_modulelist_size; 143 static uint32_t image_end; 144 static char module_base[64] = "/"; 145 static int howto; 146 147 static struct btinfo_userconfcommands *btinfo_userconfcommands = NULL; 148 static size_t btinfo_userconfcommands_size = 0; 149 150 static void module_init(const char *); 151 static void module_add_common(const char *, uint8_t); 152 153 static void userconf_init(void); 154 155 static void extract_device(const char *, char *, size_t); 156 static void module_base_path(char *, size_t, const char *); 157 static int module_open(boot_module_t *, int, const char *, const char *, 158 bool); 159 160 void 161 framebuffer_configure(struct btinfo_framebuffer *fb) 162 { 163 if (fb) 164 btinfo_framebuffer = *fb; 165 else { 166 btinfo_framebuffer.physaddr = 0; 167 btinfo_framebuffer.flags = 0; 168 } 169 } 170 171 void 172 module_add(char *name) 173 { 174 return module_add_common(name, BM_TYPE_KMOD); 175 } 176 177 void 178 splash_add(char *name) 179 { 180 return module_add_common(name, BM_TYPE_IMAGE); 181 } 182 183 void 184 rnd_add(char *name) 185 { 186 return module_add_common(name, BM_TYPE_RND); 187 } 188 189 void 190 fs_add(char *name) 191 { 192 return module_add_common(name, BM_TYPE_FS); 193 } 194 195 /* 196 * Add a /-separated list of module names to the boot list 197 */ 198 void 199 module_add_split(const char *name, uint8_t type) 200 { 201 char mod_name[MAXMODNAME]; 202 int i; 203 const char *mp = name; 204 char *ep; 205 206 while (*mp) { /* scan list of module names */ 207 i = MAXMODNAME; 208 ep = mod_name; 209 while (--i) { /* scan for end of first name */ 210 *ep = *mp; 211 if (*ep == '/') /* NUL-terminate the name */ 212 *ep = '\0'; 213 214 if (*ep == 0 ) { /* add non-empty name */ 215 if (ep != mod_name) 216 module_add_common(mod_name, type); 217 break; 218 } 219 ep++; mp++; 220 } 221 if (*ep != 0) { 222 printf("module name too long\n"); 223 return; 224 } 225 if (*mp == '/') { /* skip separator if more */ 226 mp++; 227 } 228 } 229 } 230 231 static void 232 module_add_common(const char *name, uint8_t type) 233 { 234 boot_module_t *bm, *bmp; 235 size_t len; 236 char *str; 237 238 while (*name == ' ' || *name == '\t') 239 ++name; 240 241 for (bm = boot_modules; bm != NULL; bm = bm->bm_next) 242 if (bm->bm_type == type && strcmp(bm->bm_path, name) == 0) 243 return; 244 245 bm = alloc(sizeof(boot_module_t)); 246 len = strlen(name) + 1; 247 str = alloc(len); 248 if (bm == NULL || str == NULL) { 249 printf("couldn't allocate module\n"); 250 return; 251 } 252 memcpy(str, name, len); 253 bm->bm_path = str; 254 bm->bm_next = NULL; 255 bm->bm_type = type; 256 if (boot_modules == NULL) 257 boot_modules = bm; 258 else { 259 for (bmp = boot_modules; bmp->bm_next; 260 bmp = bmp->bm_next) 261 ; 262 bmp->bm_next = bm; 263 } 264 } 265 266 void 267 userconf_add(char *cmd) 268 { 269 userconf_command_t *uc; 270 size_t len; 271 char *text; 272 273 while (*cmd == ' ' || *cmd == '\t') 274 ++cmd; 275 276 uc = alloc(sizeof(*uc)); 277 if (uc == NULL) { 278 printf("couldn't allocate command\n"); 279 return; 280 } 281 282 len = strlen(cmd) + 1; 283 text = alloc(len); 284 if (text == NULL) { 285 dealloc(uc, sizeof(*uc)); 286 printf("couldn't allocate command\n"); 287 return; 288 } 289 memcpy(text, cmd, len); 290 291 uc->uc_text = text; 292 uc->uc_len = len; 293 uc->uc_next = NULL; 294 295 if (userconf_commands == NULL) 296 userconf_commands = uc; 297 else { 298 userconf_command_t *ucp; 299 for (ucp = userconf_commands; ucp->uc_next != NULL; 300 ucp = ucp->uc_next) 301 ; 302 ucp->uc_next = uc; 303 } 304 } 305 306 struct btinfo_prekern bi_prekern; 307 int has_prekern = 0; 308 309 static int 310 common_load_prekern(const char *file, u_long *basemem, u_long *extmem, 311 physaddr_t loadaddr, int floppy, u_long marks[MARK_MAX]) 312 { 313 paddr_t kernpa_start, kernpa_end; 314 char prekernpath[] = "/prekern"; 315 u_long prekern_start; 316 int fd, flags; 317 318 *extmem = getextmem(); 319 *basemem = getbasemem(); 320 321 marks[MARK_START] = loadaddr; 322 323 /* Load the prekern (static) */ 324 flags = LOAD_KERNEL & ~(LOAD_HDR|LOAD_SYM); 325 if ((fd = loadfile(prekernpath, marks, flags)) == -1) 326 return errno; 327 close(fd); 328 329 prekern_start = marks[MARK_START]; 330 331 /* The kernel starts at 2MB. */ 332 marks[MARK_START] = loadaddr; 333 marks[MARK_END] = loadaddr + (1UL << 21); 334 kernpa_start = (1UL << 21); 335 336 /* Load the kernel (dynamic) */ 337 flags = (LOAD_KERNEL | LOAD_DYN) & ~(floppy ? LOAD_BACKWARDS : 0); 338 if ((fd = loadfile(file, marks, flags)) == -1) 339 return errno; 340 close(fd); 341 342 kernpa_end = marks[MARK_END] - loadaddr; 343 344 /* If the root fs type is unusual, load its module. */ 345 if (fsmod != NULL) 346 module_add_split(fsmod, BM_TYPE_KMOD); 347 348 bi_prekern.kernpa_start = kernpa_start; 349 bi_prekern.kernpa_end = kernpa_end; 350 BI_ADD(&bi_prekern, BTINFO_PREKERN, sizeof(struct btinfo_prekern)); 351 352 /* 353 * Gather some information for the kernel. Do this after the 354 * "point of no return" to avoid memory leaks. 355 */ 356 #ifdef PASS_BIOSGEOM 357 bi_getbiosgeom(); 358 #endif 359 #ifdef PASS_MEMMAP 360 bi_getmemmap(); 361 #endif 362 363 marks[MARK_START] = prekern_start; 364 marks[MARK_END] = (((u_long)marks[MARK_END] + sizeof(int) - 1)) & 365 (-sizeof(int)); 366 image_end = marks[MARK_END]; 367 kernel_loaded = true; 368 369 return 0; 370 } 371 372 static int 373 common_load_kernel(const char *file, u_long *basemem, u_long *extmem, 374 physaddr_t loadaddr, int floppy, u_long marks[MARK_MAX]) 375 { 376 int fd; 377 378 *extmem = getextmem(); 379 *basemem = getbasemem(); 380 381 marks[MARK_START] = loadaddr; 382 if ((fd = loadfile(file, marks, 383 LOAD_KERNEL & ~(floppy ? LOAD_BACKWARDS : 0))) == -1) 384 return errno; 385 386 close(fd); 387 388 /* If the root fs type is unusual, load its module. */ 389 if (fsmod != NULL) 390 module_add_split(fsmod, BM_TYPE_KMOD); 391 392 /* 393 * Gather some information for the kernel. Do this after the 394 * "point of no return" to avoid memory leaks. 395 */ 396 #ifdef PASS_BIOSGEOM 397 bi_getbiosgeom(); 398 #endif 399 #ifdef PASS_MEMMAP 400 bi_getmemmap(); 401 #endif 402 403 marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) & 404 (-sizeof(int)); 405 image_end = marks[MARK_END]; 406 kernel_loaded = true; 407 408 return 0; 409 } 410 411 int 412 exec_netbsd(const char *file, physaddr_t loadaddr, int boothowto, int floppy, 413 void (*callback)(void)) 414 { 415 uint32_t boot_argv[BOOT_NARGS]; 416 u_long marks[MARK_MAX]; 417 struct btinfo_symtab btinfo_symtab; 418 u_long extmem; 419 u_long basemem; 420 u_long entry; 421 int error; 422 #ifdef EFIBOOT 423 int i; 424 #endif 425 426 #ifdef DEBUG 427 printf("exec: file=%s loadaddr=0x%lx\n", file ? file : "NULL", 428 loadaddr); 429 #endif 430 431 BI_ALLOC(BTINFO_MAX); 432 433 BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console)); 434 if (bi_root.devname[0]) 435 BI_ADD(&bi_root, BTINFO_ROOTDEVICE, sizeof(struct btinfo_rootdevice)); 436 437 howto = boothowto; 438 439 memset(marks, 0, sizeof(marks)); 440 441 if (has_prekern) { 442 error = common_load_prekern(file, &basemem, &extmem, loadaddr, 443 floppy, marks); 444 } else { 445 error = common_load_kernel(file, &basemem, &extmem, loadaddr, 446 floppy, marks); 447 } 448 if (error) { 449 errno = error; 450 goto out; 451 } 452 #ifdef EFIBOOT 453 BI_ADD(&bi_disk, BTINFO_BOOTDISK, sizeof(bi_disk)); 454 BI_ADD(&bi_wedge, BTINFO_BOOTWEDGE, sizeof(bi_wedge)); 455 efidisk_getbiosgeom(); 456 457 efi_load_start = marks[MARK_START]; 458 459 /* adjust to the real load address */ 460 marks[MARK_START] -= efi_loadaddr; 461 marks[MARK_ENTRY] -= efi_loadaddr; 462 marks[MARK_DATA] -= efi_loadaddr; 463 /* MARK_NSYM */ 464 marks[MARK_SYM] -= efi_loadaddr; 465 marks[MARK_END] -= efi_loadaddr; 466 #endif 467 468 boot_argv[0] = boothowto; 469 boot_argv[1] = 0; 470 boot_argv[2] = vtophys(bootinfo); /* old cyl offset */ 471 boot_argv[3] = marks[MARK_END]; 472 boot_argv[4] = extmem; 473 boot_argv[5] = basemem; 474 475 /* pull in any modules if necessary */ 476 if (boot_modules_enabled) { 477 module_init(file); 478 if (btinfo_modulelist) { 479 #ifdef EFIBOOT 480 /* convert module loaded address to paddr */ 481 struct bi_modulelist_entry *bim; 482 bim = (void *)(btinfo_modulelist + 1); 483 for (i = 0; i < btinfo_modulelist->num; i++, bim++) 484 bim->base -= efi_loadaddr; 485 btinfo_modulelist->endpa -= efi_loadaddr; 486 #endif 487 BI_ADD(btinfo_modulelist, BTINFO_MODULELIST, 488 btinfo_modulelist_size); 489 } 490 } 491 492 userconf_init(); 493 if (btinfo_userconfcommands != NULL) 494 BI_ADD(btinfo_userconfcommands, BTINFO_USERCONFCOMMANDS, 495 btinfo_userconfcommands_size); 496 497 #ifdef DEBUG 498 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 499 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 500 #endif 501 502 btinfo_symtab.nsym = marks[MARK_NSYM]; 503 btinfo_symtab.ssym = marks[MARK_SYM]; 504 btinfo_symtab.esym = marks[MARK_END]; 505 BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab)); 506 507 /* set new video mode if necessary */ 508 vbe_commit(); 509 BI_ADD(&btinfo_framebuffer, BTINFO_FRAMEBUFFER, 510 sizeof(struct btinfo_framebuffer)); 511 512 if (callback != NULL) 513 (*callback)(); 514 515 entry = marks[MARK_ENTRY]; 516 #ifdef EFIBOOT 517 /* Copy bootinfo to safe arena. */ 518 for (i = 0; i < bootinfo->nentries; i++) { 519 struct btinfo_common *bi = (void *)(u_long)bootinfo->entry[i]; 520 char *p = alloc(bi->len); 521 memcpy(p, bi, bi->len); 522 bootinfo->entry[i] = vtophys(p); 523 } 524 525 efi_kernel_start = marks[MARK_START]; 526 efi_kernel_size = image_end - (efi_loadaddr + efi_kernel_start); 527 528 switch (efi_reloc_type) { 529 case RELOC_NONE: 530 entry += (efi_load_start - efi_kernel_start); 531 efi_kernel_start = efi_load_start; 532 break; 533 case RELOC_ADDR: 534 entry += (efi_kernel_reloc - efi_kernel_start); 535 efi_kernel_start = efi_kernel_reloc; 536 break; 537 case RELOC_DEFAULT: 538 default: 539 break; 540 } 541 #endif 542 startprog(entry, BOOT_NARGS, boot_argv, 543 x86_trunc_page(basemem * 1024)); 544 panic("exec returned"); 545 546 out: 547 BI_FREE(); 548 bootinfo = NULL; 549 return -1; 550 } 551 552 static void 553 extract_device(const char *path, char *buf, size_t buflen) 554 { 555 size_t i; 556 557 if (strchr(path, ':') != NULL) { 558 for (i = 0; i < buflen - 2 && path[i] != ':'; i++) 559 buf[i] = path[i]; 560 buf[i++] = ':'; 561 buf[i] = '\0'; 562 } else 563 buf[0] = '\0'; 564 } 565 566 static const char * 567 module_path(boot_module_t *bm, const char *kdev, const char *base_path) 568 { 569 static char buf[256]; 570 char name_buf[256], dev_buf[64]; 571 const char *name, *name2, *p; 572 573 name = bm->bm_path; 574 for (name2 = name; *name2; ++name2) { 575 if (*name2 == ' ' || *name2 == '\t') { 576 strlcpy(name_buf, name, sizeof(name_buf)); 577 if ((uintptr_t)name2 - (uintptr_t)name < sizeof(name_buf)) 578 name_buf[name2 - name] = '\0'; 579 name = name_buf; 580 break; 581 } 582 } 583 if ((p = strchr(name, ':')) != NULL) { 584 /* device specified, use it */ 585 if (p[1] == '/') 586 snprintf(buf, sizeof(buf), "%s", name); 587 else { 588 p++; 589 extract_device(name, dev_buf, sizeof(dev_buf)); 590 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 591 dev_buf, base_path, p, p); 592 } 593 } else { 594 /* device not specified; load from kernel device if known */ 595 if (name[0] == '/') 596 snprintf(buf, sizeof(buf), "%s%s", kdev, name); 597 else 598 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 599 kdev, base_path, name, name); 600 } 601 602 return buf; 603 } 604 605 static int 606 module_open(boot_module_t *bm, int mode, const char *kdev, 607 const char *base_path, bool doload) 608 { 609 int fd; 610 const char *path; 611 612 /* check the expanded path first */ 613 path = module_path(bm, kdev, base_path); 614 fd = open(path, mode); 615 if (fd != -1) { 616 if ((howto & AB_SILENT) == 0 && doload) 617 printf("Loading %s ", path); 618 } else { 619 /* now attempt the raw path provided */ 620 fd = open(bm->bm_path, mode); 621 if (fd != -1 && (howto & AB_SILENT) == 0 && doload) 622 printf("Loading %s ", bm->bm_path); 623 } 624 if (!doload && fd == -1) { 625 printf("WARNING: couldn't open %s", bm->bm_path); 626 if (strcmp(bm->bm_path, path) != 0) 627 printf(" (%s)", path); 628 printf("\n"); 629 } 630 return fd; 631 } 632 633 static void 634 module_base_path(char *buf, size_t bufsize, const char *kernel_path) 635 { 636 #ifdef KERNEL_DIR 637 /* we cheat here, because %.* does not work with the mini printf */ 638 char *ptr = strrchr(kernel_path, '/'); 639 if (ptr) *ptr = '\0'; 640 snprintf(buf, bufsize, "%s/modules", kernel_path); 641 if (ptr) *ptr = '/'; 642 #else 643 const char *machine; 644 645 switch (netbsd_elf_class) { 646 case ELFCLASS32: 647 machine = "i386"; 648 break; 649 case ELFCLASS64: 650 machine = "amd64"; 651 break; 652 default: 653 machine = "generic"; 654 break; 655 } 656 if (netbsd_version / 1000000 % 100 == 99) { 657 /* -current */ 658 snprintf(buf, bufsize, 659 "/stand/%s/%d.%d.%d/modules", machine, 660 netbsd_version / 100000000, 661 netbsd_version / 1000000 % 100, 662 netbsd_version / 100 % 10000); 663 } else if (netbsd_version != 0) { 664 /* release */ 665 snprintf(buf, bufsize, 666 "/stand/%s/%d.%d/modules", machine, 667 netbsd_version / 100000000, 668 netbsd_version / 1000000 % 100); 669 } 670 #endif 671 } 672 673 static void 674 module_init(const char *kernel_path) 675 { 676 struct bi_modulelist_entry *bi; 677 struct stat st; 678 char kdev[64]; 679 char *buf; 680 boot_module_t *bm; 681 ssize_t len; 682 off_t off; 683 int err, fd, nfail = 0; 684 685 extract_device(kernel_path, kdev, sizeof(kdev)); 686 module_base_path(module_base, sizeof(module_base), kernel_path); 687 688 /* First, see which modules are valid and calculate btinfo size */ 689 len = sizeof(struct btinfo_modulelist); 690 for (bm = boot_modules; bm; bm = bm->bm_next) { 691 fd = module_open(bm, 0, kdev, module_base, false); 692 if (fd == -1) { 693 bm->bm_len = -1; 694 ++nfail; 695 continue; 696 } 697 err = fstat(fd, &st); 698 if (err == -1 || st.st_size == -1) { 699 printf("WARNING: couldn't stat %s\n", bm->bm_path); 700 close(fd); 701 bm->bm_len = -1; 702 ++nfail; 703 continue; 704 } 705 bm->bm_len = st.st_size; 706 close(fd); 707 len += sizeof(struct bi_modulelist_entry); 708 } 709 710 /* Allocate the module list */ 711 btinfo_modulelist = alloc(len); 712 if (btinfo_modulelist == NULL) { 713 printf("WARNING: couldn't allocate module list\n"); 714 wait_sec(MODULE_WARNING_SEC); 715 return; 716 } 717 memset(btinfo_modulelist, 0, len); 718 btinfo_modulelist_size = len; 719 720 /* Fill in btinfo structure */ 721 buf = (char *)btinfo_modulelist; 722 btinfo_modulelist->num = 0; 723 off = sizeof(struct btinfo_modulelist); 724 725 for (bm = boot_modules; bm; bm = bm->bm_next) { 726 if (bm->bm_len == -1) 727 continue; 728 fd = module_open(bm, 0, kdev, module_base, true); 729 if (fd == -1) 730 continue; 731 image_end = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); 732 len = pread(fd, (void *)(uintptr_t)image_end, SSIZE_MAX); 733 if (len < bm->bm_len) { 734 if ((howto & AB_SILENT) != 0) 735 printf("Loading %s ", bm->bm_path); 736 printf(" FAILED\n"); 737 } else { 738 btinfo_modulelist->num++; 739 bi = (struct bi_modulelist_entry *)(buf + off); 740 off += sizeof(struct bi_modulelist_entry); 741 strncpy(bi->path, bm->bm_path, sizeof(bi->path) - 1); 742 bi->base = image_end; 743 bi->len = len; 744 switch (bm->bm_type) { 745 case BM_TYPE_KMOD: 746 bi->type = BI_MODULE_ELF; 747 break; 748 case BM_TYPE_IMAGE: 749 bi->type = BI_MODULE_IMAGE; 750 break; 751 case BM_TYPE_FS: 752 bi->type = BI_MODULE_FS; 753 break; 754 case BM_TYPE_RND: 755 default: 756 /* safest -- rnd checks the sha1 */ 757 bi->type = BI_MODULE_RND; 758 break; 759 } 760 if ((howto & AB_SILENT) == 0) 761 printf(" \n"); 762 } 763 if (len > 0) 764 image_end += len; 765 close(fd); 766 } 767 btinfo_modulelist->endpa = image_end; 768 769 if (nfail > 0) { 770 printf("WARNING: %d module%s failed to load\n", 771 nfail, nfail == 1 ? "" : "s"); 772 #if notyet 773 wait_sec(MODULE_WARNING_SEC); 774 #endif 775 } 776 } 777 778 static void 779 userconf_init(void) 780 { 781 size_t count, len; 782 userconf_command_t *uc; 783 char *buf; 784 off_t off; 785 786 /* Calculate the userconf commands list size */ 787 count = 0; 788 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) 789 count++; 790 len = sizeof(*btinfo_userconfcommands) + 791 count * sizeof(struct bi_userconfcommand); 792 793 /* Allocate the userconf commands list */ 794 btinfo_userconfcommands = alloc(len); 795 if (btinfo_userconfcommands == NULL) { 796 printf("WARNING: couldn't allocate userconf commands list\n"); 797 return; 798 } 799 memset(btinfo_userconfcommands, 0, len); 800 btinfo_userconfcommands_size = len; 801 802 /* Fill in btinfo structure */ 803 buf = (char *)btinfo_userconfcommands; 804 off = sizeof(*btinfo_userconfcommands); 805 btinfo_userconfcommands->num = 0; 806 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) { 807 struct bi_userconfcommand *bi; 808 bi = (struct bi_userconfcommand *)(buf + off); 809 strncpy(bi->text, uc->uc_text, sizeof(bi->text) - 1); 810 811 off += sizeof(*bi); 812 btinfo_userconfcommands->num++; 813 } 814 } 815 816 int 817 exec_multiboot(const char *file, char *args) 818 { 819 physaddr_t loadaddr = 0; 820 u_long marks[MARK_MAX]; 821 u_long extmem; 822 u_long basemem; 823 struct multiboot_package *mbp = NULL; 824 825 #ifndef NO_MULTIBOOT2 826 if ((mbp = probe_multiboot2(file)) != NULL) 827 goto is_multiboot; 828 #endif 829 830 if ((mbp = probe_multiboot1(file)) != NULL) { 831 #ifdef EFIBOOT 832 printf("EFI boot requires multiboot 2 kernel\n"); 833 goto out; 834 #else 835 goto is_multiboot; 836 #endif 837 } 838 839 #ifndef NO_MULTIBOOT2 840 printf("%s is not a multiboot kernel\n", file); 841 #else 842 printf("%s is not a multiboot 1 kernel " 843 "(multiboot 2 support is not built in)\n", file); 844 #endif 845 goto out; 846 847 is_multiboot: 848 #ifdef EFIBOOT 849 loadaddr = efi_loadaddr; 850 #endif 851 if (common_load_kernel(file, &basemem, &extmem, loadaddr, 0, marks)) 852 goto out; 853 854 if (boot_modules_enabled) 855 module_init(file); 856 857 mbp->mbp_args = args; 858 mbp->mbp_basemem = basemem; 859 mbp->mbp_extmem = extmem; 860 mbp->mbp_loadaddr = loadaddr; 861 mbp->mbp_marks = marks; 862 863 /* Only returns on error */ 864 (void)mbp->mbp_exec(mbp); 865 866 out: 867 if (mbp != NULL) 868 mbp->mbp_cleanup(mbp); 869 870 return -1; 871 } 872 873 void 874 x86_progress(const char *fmt, ...) 875 { 876 va_list ap; 877 878 if ((howto & AB_SILENT) != 0) 879 return; 880 va_start(ap, fmt); 881 vprintf(fmt, ap); 882 va_end(ap); 883 } 884
Indexes created Sat Sep 20 22:09:52 GMT 2025