main.c revision 344404
1/*- 2 * Copyright (c) 2008-2010 Rui Paulo 3 * Copyright (c) 2006 Marcel Moolenaar 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 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#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: stable/11/stand/efi/loader/main.c 344404 2019-02-21 02:31:14Z kevans $"); 30 31#include <stand.h> 32 33#include <sys/disk.h> 34#include <sys/param.h> 35#include <sys/reboot.h> 36#include <sys/boot.h> 37#include <stdint.h> 38#include <string.h> 39#include <setjmp.h> 40#include <disk.h> 41 42#include <efi.h> 43#include <efilib.h> 44 45#include <uuid.h> 46 47#include <bootstrap.h> 48#include <smbios.h> 49 50#ifdef EFI_ZFS_BOOT 51#include <libzfs.h> 52#include "efizfs.h" 53#endif 54 55#include "loader_efi.h" 56 57struct arch_switch archsw; /* MI/MD interface boundary */ 58 59EFI_GUID acpi = ACPI_TABLE_GUID; 60EFI_GUID acpi20 = ACPI_20_TABLE_GUID; 61EFI_GUID devid = DEVICE_PATH_PROTOCOL; 62EFI_GUID imgid = LOADED_IMAGE_PROTOCOL; 63EFI_GUID mps = MPS_TABLE_GUID; 64EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL; 65EFI_GUID smbios = SMBIOS_TABLE_GUID; 66EFI_GUID smbios3 = SMBIOS3_TABLE_GUID; 67EFI_GUID dxe = DXE_SERVICES_TABLE_GUID; 68EFI_GUID hoblist = HOB_LIST_TABLE_GUID; 69EFI_GUID lzmadecomp = LZMA_DECOMPRESSION_GUID; 70EFI_GUID mpcore = ARM_MP_CORE_INFO_TABLE_GUID; 71EFI_GUID esrt = ESRT_TABLE_GUID; 72EFI_GUID memtype = MEMORY_TYPE_INFORMATION_TABLE_GUID; 73EFI_GUID debugimg = DEBUG_IMAGE_INFO_TABLE_GUID; 74EFI_GUID fdtdtb = FDT_TABLE_GUID; 75EFI_GUID inputid = SIMPLE_TEXT_INPUT_PROTOCOL; 76 77/* 78 * Number of seconds to wait for a keystroke before exiting with failure 79 * in the event no currdev is found. -2 means always break, -1 means 80 * never break, 0 means poll once and then reboot, > 0 means wait for 81 * that many seconds. "fail_timeout" can be set in the environment as 82 * well. 83 */ 84static int fail_timeout = 5; 85 86static bool 87has_keyboard(void) 88{ 89 EFI_STATUS status; 90 EFI_DEVICE_PATH *path; 91 EFI_HANDLE *hin, *hin_end, *walker; 92 UINTN sz; 93 bool retval = false; 94 95 /* 96 * Find all the handles that support the SIMPLE_TEXT_INPUT_PROTOCOL and 97 * do the typical dance to get the right sized buffer. 98 */ 99 sz = 0; 100 hin = NULL; 101 status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz, 0); 102 if (status == EFI_BUFFER_TOO_SMALL) { 103 hin = (EFI_HANDLE *)malloc(sz); 104 status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz, 105 hin); 106 if (EFI_ERROR(status)) 107 free(hin); 108 } 109 if (EFI_ERROR(status)) 110 return retval; 111 112 /* 113 * Look at each of the handles. If it supports the device path protocol, 114 * use it to get the device path for this handle. Then see if that 115 * device path matches either the USB device path for keyboards or the 116 * legacy device path for keyboards. 117 */ 118 hin_end = &hin[sz / sizeof(*hin)]; 119 for (walker = hin; walker < hin_end; walker++) { 120 status = BS->HandleProtocol(*walker, &devid, (VOID **)&path); 121 if (EFI_ERROR(status)) 122 continue; 123 124 while (!IsDevicePathEnd(path)) { 125 /* 126 * Check for the ACPI keyboard node. All PNP3xx nodes 127 * are keyboards of different flavors. Note: It is 128 * unclear of there's always a keyboard node when 129 * there's a keyboard controller, or if there's only one 130 * when a keyboard is detected at boot. 131 */ 132 if (DevicePathType(path) == ACPI_DEVICE_PATH && 133 (DevicePathSubType(path) == ACPI_DP || 134 DevicePathSubType(path) == ACPI_EXTENDED_DP)) { 135 ACPI_HID_DEVICE_PATH *acpi; 136 137 acpi = (ACPI_HID_DEVICE_PATH *)(void *)path; 138 if ((EISA_ID_TO_NUM(acpi->HID) & 0xff00) == 0x300 && 139 (acpi->HID & 0xffff) == PNP_EISA_ID_CONST) { 140 retval = true; 141 goto out; 142 } 143 /* 144 * Check for USB keyboard node, if present. Unlike a 145 * PS/2 keyboard, these definitely only appear when 146 * connected to the system. 147 */ 148 } else if (DevicePathType(path) == MESSAGING_DEVICE_PATH && 149 DevicePathSubType(path) == MSG_USB_CLASS_DP) { 150 USB_CLASS_DEVICE_PATH *usb; 151 152 usb = (USB_CLASS_DEVICE_PATH *)(void *)path; 153 if (usb->DeviceClass == 3 && /* HID */ 154 usb->DeviceSubClass == 1 && /* Boot devices */ 155 usb->DeviceProtocol == 1) { /* Boot keyboards */ 156 retval = true; 157 goto out; 158 } 159 } 160 path = NextDevicePathNode(path); 161 } 162 } 163out: 164 free(hin); 165 return retval; 166} 167 168static void 169set_currdev(const char *devname) 170{ 171 172 env_setenv("currdev", EV_VOLATILE, devname, efi_setcurrdev, env_nounset); 173 env_setenv("loaddev", EV_VOLATILE, devname, env_noset, env_nounset); 174} 175 176static void 177set_currdev_devdesc(struct devdesc *currdev) 178{ 179 const char *devname; 180 181 devname = efi_fmtdev(currdev); 182 printf("Setting currdev to %s\n", devname); 183 set_currdev(devname); 184} 185 186static void 187set_currdev_devsw(struct devsw *dev, int unit) 188{ 189 struct devdesc currdev; 190 191 currdev.d_dev = dev; 192 currdev.d_unit = unit; 193 194 set_currdev_devdesc(&currdev); 195} 196 197static void 198set_currdev_pdinfo(pdinfo_t *dp) 199{ 200 201 /* 202 * Disks are special: they have partitions. if the parent 203 * pointer is non-null, we're a partition not a full disk 204 * and we need to adjust currdev appropriately. 205 */ 206 if (dp->pd_devsw->dv_type == DEVT_DISK) { 207 struct disk_devdesc currdev; 208 209 currdev.dd.d_dev = dp->pd_devsw; 210 if (dp->pd_parent == NULL) { 211 currdev.dd.d_unit = dp->pd_unit; 212 currdev.d_slice = -1; 213 currdev.d_partition = -1; 214 } else { 215 currdev.dd.d_unit = dp->pd_parent->pd_unit; 216 currdev.d_slice = dp->pd_unit; 217 currdev.d_partition = 255; /* Assumes GPT */ 218 } 219 set_currdev_devdesc((struct devdesc *)&currdev); 220 } else { 221 set_currdev_devsw(dp->pd_devsw, dp->pd_unit); 222 } 223} 224 225static bool 226sanity_check_currdev(void) 227{ 228 struct stat st; 229 230 return (stat("/boot/defaults/loader.conf", &st) == 0 || 231 stat("/boot/kernel/kernel", &st) == 0); 232} 233 234#ifdef EFI_ZFS_BOOT 235static bool 236probe_zfs_currdev(uint64_t guid) 237{ 238 char *devname; 239 struct zfs_devdesc currdev; 240 241 currdev.dd.d_dev = &zfs_dev; 242 currdev.dd.d_unit = 0; 243 currdev.pool_guid = guid; 244 currdev.root_guid = 0; 245 set_currdev_devdesc((struct devdesc *)&currdev); 246 devname = efi_fmtdev(&currdev); 247 init_zfs_bootenv(devname); 248 249 return (sanity_check_currdev()); 250} 251#endif 252 253static bool 254try_as_currdev(pdinfo_t *hd, pdinfo_t *pp) 255{ 256 uint64_t guid; 257 258#ifdef EFI_ZFS_BOOT 259 /* 260 * If there's a zpool on this device, try it as a ZFS 261 * filesystem, which has somewhat different setup than all 262 * other types of fs due to imperfect loader integration. 263 * This all stems from ZFS being both a device (zpool) and 264 * a filesystem, plus the boot env feature. 265 */ 266 if (efizfs_get_guid_by_handle(pp->pd_handle, &guid)) 267 return (probe_zfs_currdev(guid)); 268#endif 269 /* 270 * All other filesystems just need the pdinfo 271 * initialized in the standard way. 272 */ 273 set_currdev_pdinfo(pp); 274 return (sanity_check_currdev()); 275} 276 277static int 278find_currdev(EFI_LOADED_IMAGE *img) 279{ 280 pdinfo_t *dp, *pp; 281 EFI_DEVICE_PATH *devpath, *copy; 282 EFI_HANDLE h; 283 CHAR16 *text; 284 struct devsw *dev; 285 int unit; 286 uint64_t extra; 287 char *rootdev; 288 289 rootdev = getenv("rootdev"); 290 if (rootdev != NULL) { 291 printf("Setting currdev to configured rootdev %s\n", rootdev); 292 set_currdev(rootdev); 293 return (0); 294 } 295 296#ifdef EFI_ZFS_BOOT 297 /* 298 * Did efi_zfs_probe() detect the boot pool? If so, use the zpool 299 * it found, if it's sane. ZFS is the only thing that looks for 300 * disks and pools to boot. This may change in the future, however, 301 * if we allow specifying which pool to boot from via UEFI variables 302 * rather than the bootenv stuff that FreeBSD uses today. 303 */ 304 if (pool_guid != 0) { 305 printf("Trying ZFS pool\n"); 306 if (probe_zfs_currdev(pool_guid)) 307 return (0); 308 } 309#endif /* EFI_ZFS_BOOT */ 310 311 /* 312 * Try to find the block device by its handle based on the 313 * image we're booting. If we can't find a sane partition, 314 * search all the other partitions of the disk. We do not 315 * search other disks because it's a violation of the UEFI 316 * boot protocol to do so. We fail and let UEFI go on to 317 * the next candidate. 318 */ 319 dp = efiblk_get_pdinfo_by_handle(img->DeviceHandle); 320 if (dp != NULL) { 321 text = efi_devpath_name(dp->pd_devpath); 322 if (text != NULL) { 323 printf("Trying ESP: %S\n", text); 324 efi_free_devpath_name(text); 325 } 326 set_currdev_pdinfo(dp); 327 if (sanity_check_currdev()) 328 return (0); 329 if (dp->pd_parent != NULL) { 330 dp = dp->pd_parent; 331 STAILQ_FOREACH(pp, &dp->pd_part, pd_link) { 332 /* 333 * Roll up the ZFS special case 334 * for those partitions that have 335 * zpools on them 336 */ 337 if (try_as_currdev(dp, pp)) 338 return (0); 339 } 340 } 341 } else { 342 printf("Can't find device by handle\n"); 343 } 344 345 /* 346 * Try the device handle from our loaded image first. If that 347 * fails, use the device path from the loaded image and see if 348 * any of the nodes in that path match one of the enumerated 349 * handles. Currently, this handle list is only for netboot. 350 */ 351 if (efi_handle_lookup(img->DeviceHandle, &dev, &unit, &extra) == 0) { 352 set_currdev_devsw(dev, unit); 353 if (sanity_check_currdev()) 354 return (0); 355 } 356 357 copy = NULL; 358 devpath = efi_lookup_image_devpath(IH); 359 while (devpath != NULL) { 360 h = efi_devpath_handle(devpath); 361 if (h == NULL) 362 break; 363 364 free(copy); 365 copy = NULL; 366 367 if (efi_handle_lookup(h, &dev, &unit, &extra) == 0) { 368 set_currdev_devsw(dev, unit); 369 if (sanity_check_currdev()) 370 return (0); 371 } 372 373 devpath = efi_lookup_devpath(h); 374 if (devpath != NULL) { 375 copy = efi_devpath_trim(devpath); 376 devpath = copy; 377 } 378 } 379 free(copy); 380 381 return (ENOENT); 382} 383 384static bool 385interactive_interrupt(const char *msg) 386{ 387 time_t now, then, last; 388 389 last = 0; 390 now = then = getsecs(); 391 printf("%s\n", msg); 392 if (fail_timeout == -2) /* Always break to OK */ 393 return (true); 394 if (fail_timeout == -1) /* Never break to OK */ 395 return (false); 396 do { 397 if (last != now) { 398 printf("press any key to interrupt reboot in %d seconds\r", 399 fail_timeout - (int)(now - then)); 400 last = now; 401 } 402 403 /* XXX no pause or timeout wait for char */ 404 if (ischar()) 405 return (true); 406 now = getsecs(); 407 } while (now - then < fail_timeout); 408 return (false); 409} 410 411static int 412parse_args(int argc, CHAR16 *argv[]) 413{ 414 int i, j, howto; 415 bool vargood; 416 char var[128]; 417 418 /* 419 * Parse the args to set the console settings, etc 420 * boot1.efi passes these in, if it can read /boot.config or /boot/config 421 * or iPXE may be setup to pass these in. Or the optional argument in the 422 * boot environment was used to pass these arguments in (in which case 423 * neither /boot.config nor /boot/config are consulted). 424 * 425 * Loop through the args, and for each one that contains an '=' that is 426 * not the first character, add it to the environment. This allows 427 * loader and kernel env vars to be passed on the command line. Convert 428 * args from UCS-2 to ASCII (16 to 8 bit) as they are copied (though this 429 * method is flawed for non-ASCII characters). 430 */ 431 howto = 0; 432 for (i = 1; i < argc; i++) { 433 cpy16to8(argv[i], var, sizeof(var)); 434 howto |= boot_parse_arg(var); 435 } 436 437 return (howto); 438} 439 440/* 441 * Parse ConOut (the list of consoles active) and see if we can find a 442 * serial port and/or a video port. It would be nice to also walk the 443 * ACPI name space to map the UID for the serial port to a port. The 444 * latter is especially hard. 445 */ 446static int 447parse_uefi_con_out(void) 448{ 449 int how, rv; 450 int vid_seen = 0, com_seen = 0, seen = 0; 451 size_t sz; 452 char buf[4096], *ep; 453 EFI_DEVICE_PATH *node; 454 ACPI_HID_DEVICE_PATH *acpi; 455 UART_DEVICE_PATH *uart; 456 bool pci_pending; 457 458 how = 0; 459 sz = sizeof(buf); 460 rv = efi_global_getenv("ConOut", buf, &sz); 461 if (rv != EFI_SUCCESS) 462 goto out; 463 ep = buf + sz; 464 node = (EFI_DEVICE_PATH *)buf; 465 while ((char *)node < ep) { 466 pci_pending = false; 467 if (DevicePathType(node) == ACPI_DEVICE_PATH && 468 DevicePathSubType(node) == ACPI_DP) { 469 /* Check for Serial node */ 470 acpi = (void *)node; 471 if (EISA_ID_TO_NUM(acpi->HID) == 0x501) 472 com_seen = ++seen; 473 } else if (DevicePathType(node) == MESSAGING_DEVICE_PATH && 474 DevicePathSubType(node) == MSG_UART_DP) { 475 char bd[16]; 476 477 uart = (void *)node; 478 snprintf(bd, sizeof(bd), "%d", uart->BaudRate); 479 setenv("efi_com_speed", bd, 1); 480 } else if (DevicePathType(node) == ACPI_DEVICE_PATH && 481 DevicePathSubType(node) == ACPI_ADR_DP) { 482 /* Check for AcpiAdr() Node for video */ 483 vid_seen = ++seen; 484 } else if (DevicePathType(node) == HARDWARE_DEVICE_PATH && 485 DevicePathSubType(node) == HW_PCI_DP) { 486 /* 487 * Note, vmware fusion has a funky console device 488 * PciRoot(0x0)/Pci(0xf,0x0) 489 * which we can only detect at the end since we also 490 * have to cope with: 491 * PciRoot(0x0)/Pci(0x1f,0x0)/Serial(0x1) 492 * so only match it if it's last. 493 */ 494 pci_pending = true; 495 } 496 node = NextDevicePathNode(node); /* Skip the end node */ 497 } 498 if (pci_pending && vid_seen == 0) 499 vid_seen = ++seen; 500 501 /* 502 * Truth table for RB_MULTIPLE | RB_SERIAL 503 * Value Result 504 * 0 Use only video console 505 * RB_SERIAL Use only serial console 506 * RB_MULTIPLE Use both video and serial console 507 * (but video is primary so gets rc messages) 508 * both Use both video and serial console 509 * (but serial is primary so gets rc messages) 510 * 511 * Try to honor this as best we can. If only one of serial / video 512 * found, then use that. Otherwise, use the first one we found. 513 * This also implies if we found nothing, default to video. 514 */ 515 how = 0; 516 if (vid_seen && com_seen) { 517 how |= RB_MULTIPLE; 518 if (com_seen < vid_seen) 519 how |= RB_SERIAL; 520 } else if (com_seen) 521 how |= RB_SERIAL; 522out: 523 return (how); 524} 525 526EFI_STATUS 527main(int argc, CHAR16 *argv[]) 528{ 529 EFI_GUID *guid; 530 int howto, i, uhowto; 531 UINTN k; 532 bool has_kbd; 533 char *s; 534 EFI_DEVICE_PATH *imgpath; 535 CHAR16 *text; 536 EFI_STATUS status; 537 UINT16 boot_current; 538 size_t sz; 539 UINT16 boot_order[100]; 540 EFI_LOADED_IMAGE *img; 541 542 archsw.arch_autoload = efi_autoload; 543 archsw.arch_getdev = efi_getdev; 544 archsw.arch_copyin = efi_copyin; 545 archsw.arch_copyout = efi_copyout; 546 archsw.arch_readin = efi_readin; 547#ifdef EFI_ZFS_BOOT 548 /* Note this needs to be set before ZFS init. */ 549 archsw.arch_zfs_probe = efi_zfs_probe; 550#endif 551 552 /* Get our loaded image protocol interface structure. */ 553 BS->HandleProtocol(IH, &imgid, (VOID**)&img); 554 555#ifdef EFI_ZFS_BOOT 556 /* Tell ZFS probe code where we booted from */ 557 efizfs_set_preferred(img->DeviceHandle); 558#endif 559 /* Init the time source */ 560 efi_time_init(); 561 562 has_kbd = has_keyboard(); 563 564 /* 565 * XXX Chicken-and-egg problem; we want to have console output 566 * early, but some console attributes may depend on reading from 567 * eg. the boot device, which we can't do yet. We can use 568 * printf() etc. once this is done. 569 */ 570 setenv("console", "efi", 1); 571 cons_probe(); 572 573 /* 574 * Initialise the block cache. Set the upper limit. 575 */ 576 bcache_init(32768, 512); 577 578 howto = parse_args(argc, argv); 579 if (!has_kbd && (howto & RB_PROBE)) 580 howto |= RB_SERIAL | RB_MULTIPLE; 581 howto &= ~RB_PROBE; 582 uhowto = parse_uefi_con_out(); 583 584 /* 585 * We now have two notions of console. howto should be viewed as 586 * overrides. If console is already set, don't set it again. 587 */ 588#define VIDEO_ONLY 0 589#define SERIAL_ONLY RB_SERIAL 590#define VID_SER_BOTH RB_MULTIPLE 591#define SER_VID_BOTH (RB_SERIAL | RB_MULTIPLE) 592#define CON_MASK (RB_SERIAL | RB_MULTIPLE) 593 if (strcmp(getenv("console"), "efi") == 0) { 594 if ((howto & CON_MASK) == 0) { 595 /* No override, uhowto is controlling and efi cons is perfect */ 596 howto = howto | (uhowto & CON_MASK); 597 setenv("console", "efi", 1); 598 } else if ((howto & CON_MASK) == (uhowto & CON_MASK)) { 599 /* override matches what UEFI told us, efi console is perfect */ 600 setenv("console", "efi", 1); 601 } else if ((uhowto & (CON_MASK)) != 0) { 602 /* 603 * We detected a serial console on ConOut. All possible 604 * overrides include serial. We can't really override what efi 605 * gives us, so we use it knowing it's the best choice. 606 */ 607 setenv("console", "efi", 1); 608 } else { 609 /* 610 * We detected some kind of serial in the override, but ConOut 611 * has no serial, so we have to sort out which case it really is. 612 */ 613 switch (howto & CON_MASK) { 614 case SERIAL_ONLY: 615 setenv("console", "comconsole", 1); 616 break; 617 case VID_SER_BOTH: 618 setenv("console", "efi comconsole", 1); 619 break; 620 case SER_VID_BOTH: 621 setenv("console", "comconsole efi", 1); 622 break; 623 /* case VIDEO_ONLY can't happen -- it's the first if above */ 624 } 625 } 626 } 627 /* 628 * howto is set now how we want to export the flags to the kernel, so 629 * set the env based on it. 630 */ 631 boot_howto_to_env(howto); 632 633 if (efi_copy_init()) { 634 printf("failed to allocate staging area\n"); 635 return (EFI_BUFFER_TOO_SMALL); 636 } 637 638 if ((s = getenv("fail_timeout")) != NULL) 639 fail_timeout = strtol(s, NULL, 10); 640 641 /* 642 * Scan the BLOCK IO MEDIA handles then 643 * march through the device switch probing for things. 644 */ 645 if ((i = efipart_inithandles()) == 0) { 646 for (i = 0; devsw[i] != NULL; i++) 647 if (devsw[i]->dv_init != NULL) 648 (devsw[i]->dv_init)(); 649 } else 650 printf("efipart_inithandles failed %d, expect failures", i); 651 652 printf("%s\n", bootprog_info); 653 printf(" Command line arguments:"); 654 for (i = 0; i < argc; i++) 655 printf(" %S", argv[i]); 656 printf("\n"); 657 658 printf(" EFI version: %d.%02d\n", ST->Hdr.Revision >> 16, 659 ST->Hdr.Revision & 0xffff); 660 printf(" EFI Firmware: %S (rev %d.%02d)\n", ST->FirmwareVendor, 661 ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); 662 663 664 /* Determine the devpath of our image so we can prefer it. */ 665 text = efi_devpath_name(img->FilePath); 666 if (text != NULL) { 667 printf(" Load Path: %S\n", text); 668 efi_setenv_freebsd_wcs("LoaderPath", text); 669 efi_free_devpath_name(text); 670 } 671 672 status = BS->HandleProtocol(img->DeviceHandle, &devid, (void **)&imgpath); 673 if (status == EFI_SUCCESS) { 674 text = efi_devpath_name(imgpath); 675 if (text != NULL) { 676 printf(" Load Device: %S\n", text); 677 efi_setenv_freebsd_wcs("LoaderDev", text); 678 efi_free_devpath_name(text); 679 } 680 } 681 682 boot_current = 0; 683 sz = sizeof(boot_current); 684 efi_global_getenv("BootCurrent", &boot_current, &sz); 685 printf(" BootCurrent: %04x\n", boot_current); 686 687 sz = sizeof(boot_order); 688 efi_global_getenv("BootOrder", &boot_order, &sz); 689 printf(" BootOrder:"); 690 for (i = 0; i < sz / sizeof(boot_order[0]); i++) 691 printf(" %04x%s", boot_order[i], 692 boot_order[i] == boot_current ? "[*]" : ""); 693 printf("\n"); 694 695 /* 696 * Disable the watchdog timer. By default the boot manager sets 697 * the timer to 5 minutes before invoking a boot option. If we 698 * want to return to the boot manager, we have to disable the 699 * watchdog timer and since we're an interactive program, we don't 700 * want to wait until the user types "quit". The timer may have 701 * fired by then. We don't care if this fails. It does not prevent 702 * normal functioning in any way... 703 */ 704 BS->SetWatchdogTimer(0, 0, 0, NULL); 705 706 /* 707 * Try and find a good currdev based on the image that was booted. 708 * It might be desirable here to have a short pause to allow falling 709 * through to the boot loader instead of returning instantly to follow 710 * the boot protocol and also allow an escape hatch for users wishing 711 * to try something different. 712 */ 713 if (find_currdev(img) != 0) 714 if (!interactive_interrupt("Failed to find bootable partition")) 715 return (EFI_NOT_FOUND); 716 717 efi_init_environment(); 718 719#if !defined(__arm__) 720 for (k = 0; k < ST->NumberOfTableEntries; k++) { 721 guid = &ST->ConfigurationTable[k].VendorGuid; 722 if (!memcmp(guid, &smbios, sizeof(EFI_GUID))) { 723 char buf[40]; 724 725 snprintf(buf, sizeof(buf), "%p", 726 ST->ConfigurationTable[k].VendorTable); 727 setenv("hint.smbios.0.mem", buf, 1); 728 smbios_detect(ST->ConfigurationTable[k].VendorTable); 729 break; 730 } 731 } 732#endif 733 734 interact(); /* doesn't return */ 735 736 return (EFI_SUCCESS); /* keep compiler happy */ 737} 738 739COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot); 740 741static int 742command_reboot(int argc, char *argv[]) 743{ 744 int i; 745 746 for (i = 0; devsw[i] != NULL; ++i) 747 if (devsw[i]->dv_cleanup != NULL) 748 (devsw[i]->dv_cleanup)(); 749 750 RS->ResetSystem(EfiResetCold, EFI_SUCCESS, 0, NULL); 751 752 /* NOTREACHED */ 753 return (CMD_ERROR); 754} 755 756COMMAND_SET(quit, "quit", "exit the loader", command_quit); 757 758static int 759command_quit(int argc, char *argv[]) 760{ 761 exit(0); 762 return (CMD_OK); 763} 764 765COMMAND_SET(memmap, "memmap", "print memory map", command_memmap); 766 767static int 768command_memmap(int argc, char *argv[]) 769{ 770 UINTN sz; 771 EFI_MEMORY_DESCRIPTOR *map, *p; 772 UINTN key, dsz; 773 UINT32 dver; 774 EFI_STATUS status; 775 int i, ndesc; 776 char line[80]; 777 static char *types[] = { 778 "Reserved", 779 "LoaderCode", 780 "LoaderData", 781 "BootServicesCode", 782 "BootServicesData", 783 "RuntimeServicesCode", 784 "RuntimeServicesData", 785 "ConventionalMemory", 786 "UnusableMemory", 787 "ACPIReclaimMemory", 788 "ACPIMemoryNVS", 789 "MemoryMappedIO", 790 "MemoryMappedIOPortSpace", 791 "PalCode" 792 }; 793 794 sz = 0; 795 status = BS->GetMemoryMap(&sz, 0, &key, &dsz, &dver); 796 if (status != EFI_BUFFER_TOO_SMALL) { 797 printf("Can't determine memory map size\n"); 798 return (CMD_ERROR); 799 } 800 map = malloc(sz); 801 status = BS->GetMemoryMap(&sz, map, &key, &dsz, &dver); 802 if (EFI_ERROR(status)) { 803 printf("Can't read memory map\n"); 804 return (CMD_ERROR); 805 } 806 807 ndesc = sz / dsz; 808 snprintf(line, sizeof(line), "%23s %12s %12s %8s %4s\n", 809 "Type", "Physical", "Virtual", "#Pages", "Attr"); 810 pager_open(); 811 if (pager_output(line)) { 812 pager_close(); 813 return (CMD_OK); 814 } 815 816 for (i = 0, p = map; i < ndesc; 817 i++, p = NextMemoryDescriptor(p, dsz)) { 818 printf("%23s %012jx %012jx %08jx ", types[p->Type], 819 (uintmax_t)p->PhysicalStart, (uintmax_t)p->VirtualStart, 820 (uintmax_t)p->NumberOfPages); 821 if (p->Attribute & EFI_MEMORY_UC) 822 printf("UC "); 823 if (p->Attribute & EFI_MEMORY_WC) 824 printf("WC "); 825 if (p->Attribute & EFI_MEMORY_WT) 826 printf("WT "); 827 if (p->Attribute & EFI_MEMORY_WB) 828 printf("WB "); 829 if (p->Attribute & EFI_MEMORY_UCE) 830 printf("UCE "); 831 if (p->Attribute & EFI_MEMORY_WP) 832 printf("WP "); 833 if (p->Attribute & EFI_MEMORY_RP) 834 printf("RP "); 835 if (p->Attribute & EFI_MEMORY_XP) 836 printf("XP "); 837 if (pager_output("\n")) 838 break; 839 } 840 841 pager_close(); 842 return (CMD_OK); 843} 844 845COMMAND_SET(configuration, "configuration", "print configuration tables", 846 command_configuration); 847 848static const char * 849guid_to_string(EFI_GUID *guid) 850{ 851 static char buf[40]; 852 853 sprintf(buf, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x", 854 guid->Data1, guid->Data2, guid->Data3, guid->Data4[0], 855 guid->Data4[1], guid->Data4[2], guid->Data4[3], guid->Data4[4], 856 guid->Data4[5], guid->Data4[6], guid->Data4[7]); 857 return (buf); 858} 859 860static int 861command_configuration(int argc, char *argv[]) 862{ 863 char line[80]; 864 UINTN i; 865 866 snprintf(line, sizeof(line), "NumberOfTableEntries=%lu\n", 867 (unsigned long)ST->NumberOfTableEntries); 868 pager_open(); 869 if (pager_output(line)) { 870 pager_close(); 871 return (CMD_OK); 872 } 873 874 for (i = 0; i < ST->NumberOfTableEntries; i++) { 875 EFI_GUID *guid; 876 877 printf(" "); 878 guid = &ST->ConfigurationTable[i].VendorGuid; 879 if (!memcmp(guid, &mps, sizeof(EFI_GUID))) 880 printf("MPS Table"); 881 else if (!memcmp(guid, &acpi, sizeof(EFI_GUID))) 882 printf("ACPI Table"); 883 else if (!memcmp(guid, &acpi20, sizeof(EFI_GUID))) 884 printf("ACPI 2.0 Table"); 885 else if (!memcmp(guid, &smbios, sizeof(EFI_GUID))) 886 printf("SMBIOS Table %p", 887 ST->ConfigurationTable[i].VendorTable); 888 else if (!memcmp(guid, &smbios3, sizeof(EFI_GUID))) 889 printf("SMBIOS3 Table"); 890 else if (!memcmp(guid, &dxe, sizeof(EFI_GUID))) 891 printf("DXE Table"); 892 else if (!memcmp(guid, &hoblist, sizeof(EFI_GUID))) 893 printf("HOB List Table"); 894 else if (!memcmp(guid, &lzmadecomp, sizeof(EFI_GUID))) 895 printf("LZMA Compression"); 896 else if (!memcmp(guid, &mpcore, sizeof(EFI_GUID))) 897 printf("ARM MpCore Information Table"); 898 else if (!memcmp(guid, &esrt, sizeof(EFI_GUID))) 899 printf("ESRT Table"); 900 else if (!memcmp(guid, &memtype, sizeof(EFI_GUID))) 901 printf("Memory Type Information Table"); 902 else if (!memcmp(guid, &debugimg, sizeof(EFI_GUID))) 903 printf("Debug Image Info Table"); 904 else if (!memcmp(guid, &fdtdtb, sizeof(EFI_GUID))) 905 printf("FDT Table"); 906 else 907 printf("Unknown Table (%s)", guid_to_string(guid)); 908 snprintf(line, sizeof(line), " at %p\n", 909 ST->ConfigurationTable[i].VendorTable); 910 if (pager_output(line)) 911 break; 912 } 913 914 pager_close(); 915 return (CMD_OK); 916} 917 918 919COMMAND_SET(mode, "mode", "change or display EFI text modes", command_mode); 920 921static int 922command_mode(int argc, char *argv[]) 923{ 924 UINTN cols, rows; 925 unsigned int mode; 926 int i; 927 char *cp; 928 char rowenv[8]; 929 EFI_STATUS status; 930 SIMPLE_TEXT_OUTPUT_INTERFACE *conout; 931 extern void HO(void); 932 933 conout = ST->ConOut; 934 935 if (argc > 1) { 936 mode = strtol(argv[1], &cp, 0); 937 if (cp[0] != '\0') { 938 printf("Invalid mode\n"); 939 return (CMD_ERROR); 940 } 941 status = conout->QueryMode(conout, mode, &cols, &rows); 942 if (EFI_ERROR(status)) { 943 printf("invalid mode %d\n", mode); 944 return (CMD_ERROR); 945 } 946 status = conout->SetMode(conout, mode); 947 if (EFI_ERROR(status)) { 948 printf("couldn't set mode %d\n", mode); 949 return (CMD_ERROR); 950 } 951 sprintf(rowenv, "%u", (unsigned)rows); 952 setenv("LINES", rowenv, 1); 953 HO(); /* set cursor */ 954 return (CMD_OK); 955 } 956 957 printf("Current mode: %d\n", conout->Mode->Mode); 958 for (i = 0; i <= conout->Mode->MaxMode; i++) { 959 status = conout->QueryMode(conout, i, &cols, &rows); 960 if (EFI_ERROR(status)) 961 continue; 962 printf("Mode %d: %u columns, %u rows\n", i, (unsigned)cols, 963 (unsigned)rows); 964 } 965 966 if (i != 0) 967 printf("Select a mode with the command \"mode <number>\"\n"); 968 969 return (CMD_OK); 970} 971 972#ifdef LOADER_FDT_SUPPORT 973extern int command_fdt_internal(int argc, char *argv[]); 974 975/* 976 * Since proper fdt command handling function is defined in fdt_loader_cmd.c, 977 * and declaring it as extern is in contradiction with COMMAND_SET() macro 978 * (which uses static pointer), we're defining wrapper function, which 979 * calls the proper fdt handling routine. 980 */ 981static int 982command_fdt(int argc, char *argv[]) 983{ 984 985 return (command_fdt_internal(argc, argv)); 986} 987 988COMMAND_SET(fdt, "fdt", "flattened device tree handling", command_fdt); 989#endif 990 991/* 992 * Chain load another efi loader. 993 */ 994static int 995command_chain(int argc, char *argv[]) 996{ 997 EFI_GUID LoadedImageGUID = LOADED_IMAGE_PROTOCOL; 998 EFI_HANDLE loaderhandle; 999 EFI_LOADED_IMAGE *loaded_image; 1000 EFI_STATUS status; 1001 struct stat st; 1002 struct devdesc *dev; 1003 char *name, *path; 1004 void *buf; 1005 int fd; 1006 1007 if (argc < 2) { 1008 command_errmsg = "wrong number of arguments"; 1009 return (CMD_ERROR); 1010 } 1011 1012 name = argv[1]; 1013 1014 if ((fd = open(name, O_RDONLY)) < 0) { 1015 command_errmsg = "no such file"; 1016 return (CMD_ERROR); 1017 } 1018 1019 if (fstat(fd, &st) < -1) { 1020 command_errmsg = "stat failed"; 1021 close(fd); 1022 return (CMD_ERROR); 1023 } 1024 1025 status = BS->AllocatePool(EfiLoaderCode, (UINTN)st.st_size, &buf); 1026 if (status != EFI_SUCCESS) { 1027 command_errmsg = "failed to allocate buffer"; 1028 close(fd); 1029 return (CMD_ERROR); 1030 } 1031 if (read(fd, buf, st.st_size) != st.st_size) { 1032 command_errmsg = "error while reading the file"; 1033 (void)BS->FreePool(buf); 1034 close(fd); 1035 return (CMD_ERROR); 1036 } 1037 close(fd); 1038 status = BS->LoadImage(FALSE, IH, NULL, buf, st.st_size, &loaderhandle); 1039 (void)BS->FreePool(buf); 1040 if (status != EFI_SUCCESS) { 1041 command_errmsg = "LoadImage failed"; 1042 return (CMD_ERROR); 1043 } 1044 status = BS->HandleProtocol(loaderhandle, &LoadedImageGUID, 1045 (void **)&loaded_image); 1046 1047 if (argc > 2) { 1048 int i, len = 0; 1049 CHAR16 *argp; 1050 1051 for (i = 2; i < argc; i++) 1052 len += strlen(argv[i]) + 1; 1053 1054 len *= sizeof (*argp); 1055 loaded_image->LoadOptions = argp = malloc (len); 1056 loaded_image->LoadOptionsSize = len; 1057 for (i = 2; i < argc; i++) { 1058 char *ptr = argv[i]; 1059 while (*ptr) 1060 *(argp++) = *(ptr++); 1061 *(argp++) = ' '; 1062 } 1063 *(--argv) = 0; 1064 } 1065 1066 if (efi_getdev((void **)&dev, name, (const char **)&path) == 0) { 1067#ifdef EFI_ZFS_BOOT 1068 struct zfs_devdesc *z_dev; 1069#endif 1070 struct disk_devdesc *d_dev; 1071 pdinfo_t *hd, *pd; 1072 1073 switch (dev->d_dev->dv_type) { 1074#ifdef EFI_ZFS_BOOT 1075 case DEVT_ZFS: 1076 z_dev = (struct zfs_devdesc *)dev; 1077 loaded_image->DeviceHandle = 1078 efizfs_get_handle_by_guid(z_dev->pool_guid); 1079 break; 1080#endif 1081 case DEVT_NET: 1082 loaded_image->DeviceHandle = 1083 efi_find_handle(dev->d_dev, dev->d_unit); 1084 break; 1085 default: 1086 hd = efiblk_get_pdinfo(dev); 1087 if (STAILQ_EMPTY(&hd->pd_part)) { 1088 loaded_image->DeviceHandle = hd->pd_handle; 1089 break; 1090 } 1091 d_dev = (struct disk_devdesc *)dev; 1092 STAILQ_FOREACH(pd, &hd->pd_part, pd_link) { 1093 /* 1094 * d_partition should be 255 1095 */ 1096 if (pd->pd_unit == (uint32_t)d_dev->d_slice) { 1097 loaded_image->DeviceHandle = 1098 pd->pd_handle; 1099 break; 1100 } 1101 } 1102 break; 1103 } 1104 } 1105 1106 dev_cleanup(); 1107 status = BS->StartImage(loaderhandle, NULL, NULL); 1108 if (status != EFI_SUCCESS) { 1109 command_errmsg = "StartImage failed"; 1110 free(loaded_image->LoadOptions); 1111 loaded_image->LoadOptions = NULL; 1112 status = BS->UnloadImage(loaded_image); 1113 return (CMD_ERROR); 1114 } 1115 1116 return (CMD_ERROR); /* not reached */ 1117} 1118 1119COMMAND_SET(chain, "chain", "chain load file", command_chain); 1120