1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2011 NetApp, 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 NETAPP, INC ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/types.h> 30 #ifndef WITHOUT_CAPSICUM 31 #include <sys/capsicum.h> 32 #endif 33 #include <sys/mman.h> 34 #ifdef BHYVE_SNAPSHOT 35 #include <sys/socket.h> 36 #include <sys/stat.h> 37 #endif 38 #include <sys/time.h> 39 #ifdef BHYVE_SNAPSHOT 40 #include <sys/un.h> 41 #endif 42 43 #include <machine/atomic.h> 44 45 #ifndef WITHOUT_CAPSICUM 46 #include <capsicum_helpers.h> 47 #endif 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <err.h> 52 #include <errno.h> 53 #ifdef BHYVE_SNAPSHOT 54 #include <fcntl.h> 55 #endif 56 #include <libgen.h> 57 #include <unistd.h> 58 #include <assert.h> 59 #include <pthread.h> 60 #include <pthread_np.h> 61 #include <sysexits.h> 62 #include <stdbool.h> 63 #include <stdint.h> 64 #ifdef BHYVE_SNAPSHOT 65 #include <ucl.h> 66 #include <unistd.h> 67 68 #include <libxo/xo.h> 69 #endif 70 71 #include <vmmapi.h> 72 73 #include "acpi.h" 74 #include "bhyverun.h" 75 #include "bootrom.h" 76 #include "config.h" 77 #include "debug.h" 78 #ifdef BHYVE_GDB 79 #include "gdb.h" 80 #endif 81 #include "mem.h" 82 #include "mevent.h" 83 #include "pci_emul.h" 84 #ifdef __amd64__ 85 #include "amd64/pci_lpc.h" 86 #endif 87 #include "qemu_fwcfg.h" 88 #ifdef BHYVE_SNAPSHOT 89 #include "snapshot.h" 90 #endif 91 #include "tpm_device.h" 92 #include "vmgenc.h" 93 #include "vmexit.h" 94 95 #define MB (1024UL * 1024) 96 #define GB (1024UL * MB) 97 98 int guest_ncpus; 99 uint16_t cpu_cores, cpu_sockets, cpu_threads; 100 101 int raw_stdio = 0; 102 103 #ifdef BHYVE_SNAPSHOT 104 char *restore_file; 105 #endif 106 107 static const int BSP = 0; 108 109 static cpuset_t cpumask; 110 111 static void vm_loop(struct vmctx *ctx, struct vcpu *vcpu); 112 113 static struct vcpu_info { 114 struct vmctx *ctx; 115 struct vcpu *vcpu; 116 int vcpuid; 117 } *vcpu_info; 118 119 static cpuset_t **vcpumap; 120 121 /* 122 * XXX This parser is known to have the following issues: 123 * 1. It accepts null key=value tokens ",," as setting "cpus" to an 124 * empty string. 125 * 126 * The acceptance of a null specification ('-c ""') is by design to match the 127 * manual page syntax specification, this results in a topology of 1 vCPU. 128 */ 129 int 130 bhyve_topology_parse(const char *opt) 131 { 132 char *cp, *str, *tofree; 133 134 if (*opt == '\0') { 135 set_config_value("sockets", "1"); 136 set_config_value("cores", "1"); 137 set_config_value("threads", "1"); 138 set_config_value("cpus", "1"); 139 return (0); 140 } 141 142 tofree = str = strdup(opt); 143 if (str == NULL) 144 errx(4, "Failed to allocate memory"); 145 146 while ((cp = strsep(&str, ",")) != NULL) { 147 if (strncmp(cp, "cpus=", strlen("cpus=")) == 0) 148 set_config_value("cpus", cp + strlen("cpus=")); 149 else if (strncmp(cp, "sockets=", strlen("sockets=")) == 0) 150 set_config_value("sockets", cp + strlen("sockets=")); 151 else if (strncmp(cp, "cores=", strlen("cores=")) == 0) 152 set_config_value("cores", cp + strlen("cores=")); 153 else if (strncmp(cp, "threads=", strlen("threads=")) == 0) 154 set_config_value("threads", cp + strlen("threads=")); 155 else if (strchr(cp, '=') != NULL) 156 goto out; 157 else 158 set_config_value("cpus", cp); 159 } 160 free(tofree); 161 return (0); 162 163 out: 164 free(tofree); 165 return (-1); 166 } 167 168 static int 169 parse_int_value(const char *key, const char *value, int minval, int maxval) 170 { 171 char *cp; 172 long lval; 173 174 errno = 0; 175 lval = strtol(value, &cp, 0); 176 if (errno != 0 || *cp != '\0' || cp == value || lval < minval || 177 lval > maxval) 178 errx(4, "Invalid value for %s: '%s'", key, value); 179 return (lval); 180 } 181 182 /* 183 * Set the sockets, cores, threads, and guest_cpus variables based on 184 * the configured topology. 185 * 186 * The limits of UINT16_MAX are due to the types passed to 187 * vm_set_topology(). vmm.ko may enforce tighter limits. 188 */ 189 static void 190 calc_topology(void) 191 { 192 const char *value; 193 bool explicit_cpus; 194 uint64_t ncpus; 195 196 value = get_config_value("cpus"); 197 if (value != NULL) { 198 guest_ncpus = parse_int_value("cpus", value, 1, UINT16_MAX); 199 explicit_cpus = true; 200 } else { 201 guest_ncpus = 1; 202 explicit_cpus = false; 203 } 204 value = get_config_value("cores"); 205 if (value != NULL) 206 cpu_cores = parse_int_value("cores", value, 1, UINT16_MAX); 207 else 208 cpu_cores = 1; 209 value = get_config_value("threads"); 210 if (value != NULL) 211 cpu_threads = parse_int_value("threads", value, 1, UINT16_MAX); 212 else 213 cpu_threads = 1; 214 value = get_config_value("sockets"); 215 if (value != NULL) 216 cpu_sockets = parse_int_value("sockets", value, 1, UINT16_MAX); 217 else 218 cpu_sockets = guest_ncpus; 219 220 /* 221 * Compute sockets * cores * threads avoiding overflow. The 222 * range check above insures these are 16 bit values. 223 */ 224 ncpus = (uint64_t)cpu_sockets * cpu_cores * cpu_threads; 225 if (ncpus > UINT16_MAX) 226 errx(4, "Computed number of vCPUs too high: %ju", 227 (uintmax_t)ncpus); 228 229 if (explicit_cpus) { 230 if (guest_ncpus != (int)ncpus) 231 errx(4, "Topology (%d sockets, %d cores, %d threads) " 232 "does not match %d vCPUs", 233 cpu_sockets, cpu_cores, cpu_threads, 234 guest_ncpus); 235 } else 236 guest_ncpus = ncpus; 237 } 238 239 int 240 bhyve_pincpu_parse(const char *opt) 241 { 242 const char *value; 243 char *newval; 244 char key[16]; 245 int vcpu, pcpu; 246 247 if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) { 248 fprintf(stderr, "invalid format: %s\n", opt); 249 return (-1); 250 } 251 252 if (vcpu < 0) { 253 fprintf(stderr, "invalid vcpu '%d'\n", vcpu); 254 return (-1); 255 } 256 257 if (pcpu < 0 || pcpu >= CPU_SETSIZE) { 258 fprintf(stderr, "hostcpu '%d' outside valid range from " 259 "0 to %d\n", pcpu, CPU_SETSIZE - 1); 260 return (-1); 261 } 262 263 snprintf(key, sizeof(key), "vcpu.%d.cpuset", vcpu); 264 value = get_config_value(key); 265 266 if (asprintf(&newval, "%s%s%d", value != NULL ? value : "", 267 value != NULL ? "," : "", pcpu) == -1) { 268 perror("failed to build new cpuset string"); 269 return (-1); 270 } 271 272 set_config_value(key, newval); 273 free(newval); 274 return (0); 275 } 276 277 static void 278 parse_cpuset(int vcpu, const char *list, cpuset_t *set) 279 { 280 char *cp, *token; 281 int pcpu, start; 282 283 CPU_ZERO(set); 284 start = -1; 285 token = __DECONST(char *, list); 286 for (;;) { 287 pcpu = strtoul(token, &cp, 0); 288 if (cp == token) 289 errx(4, "invalid cpuset for vcpu %d: '%s'", vcpu, list); 290 if (pcpu < 0 || pcpu >= CPU_SETSIZE) 291 errx(4, "hostcpu '%d' outside valid range from 0 to %d", 292 pcpu, CPU_SETSIZE - 1); 293 switch (*cp) { 294 case ',': 295 case '\0': 296 if (start >= 0) { 297 if (start > pcpu) 298 errx(4, "Invalid hostcpu range %d-%d", 299 start, pcpu); 300 while (start < pcpu) { 301 CPU_SET(start, set); 302 start++; 303 } 304 start = -1; 305 } 306 CPU_SET(pcpu, set); 307 break; 308 case '-': 309 if (start >= 0) 310 errx(4, "invalid cpuset for vcpu %d: '%s'", 311 vcpu, list); 312 start = pcpu; 313 break; 314 default: 315 errx(4, "invalid cpuset for vcpu %d: '%s'", vcpu, list); 316 } 317 if (*cp == '\0') 318 break; 319 token = cp + 1; 320 } 321 } 322 323 static void 324 build_vcpumaps(void) 325 { 326 char key[16]; 327 const char *value; 328 int vcpu; 329 330 vcpumap = calloc(guest_ncpus, sizeof(*vcpumap)); 331 for (vcpu = 0; vcpu < guest_ncpus; vcpu++) { 332 snprintf(key, sizeof(key), "vcpu.%d.cpuset", vcpu); 333 value = get_config_value(key); 334 if (value == NULL) 335 continue; 336 vcpumap[vcpu] = malloc(sizeof(cpuset_t)); 337 if (vcpumap[vcpu] == NULL) 338 err(4, "Failed to allocate cpuset for vcpu %d", vcpu); 339 parse_cpuset(vcpu, value, vcpumap[vcpu]); 340 } 341 } 342 343 void * 344 paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len) 345 { 346 347 return (vm_map_gpa(ctx, gaddr, len)); 348 } 349 350 #ifdef BHYVE_SNAPSHOT 351 uintptr_t 352 paddr_host2guest(struct vmctx *ctx, void *addr) 353 { 354 return (vm_rev_map_gpa(ctx, addr)); 355 } 356 #endif 357 358 int 359 fbsdrun_virtio_msix(void) 360 { 361 362 return (get_config_bool_default("virtio_msix", true)); 363 } 364 365 struct vcpu * 366 fbsdrun_vcpu(int vcpuid) 367 { 368 return (vcpu_info[vcpuid].vcpu); 369 } 370 371 static void * 372 fbsdrun_start_thread(void *param) 373 { 374 char tname[MAXCOMLEN + 1]; 375 struct vcpu_info *vi = param; 376 int error; 377 378 snprintf(tname, sizeof(tname), "vcpu %d", vi->vcpuid); 379 pthread_set_name_np(pthread_self(), tname); 380 381 if (vcpumap[vi->vcpuid] != NULL) { 382 error = pthread_setaffinity_np(pthread_self(), 383 sizeof(cpuset_t), vcpumap[vi->vcpuid]); 384 assert(error == 0); 385 } 386 387 #ifdef BHYVE_SNAPSHOT 388 checkpoint_cpu_add(vi->vcpuid); 389 #endif 390 #ifdef BHYVE_GDB 391 gdb_cpu_add(vi->vcpu); 392 #endif 393 394 vm_loop(vi->ctx, vi->vcpu); 395 396 /* not reached */ 397 exit(1); 398 return (NULL); 399 } 400 401 void 402 fbsdrun_addcpu(int vcpuid) 403 { 404 struct vcpu_info *vi; 405 pthread_t thr; 406 int error; 407 408 vi = &vcpu_info[vcpuid]; 409 410 error = vm_activate_cpu(vi->vcpu); 411 if (error != 0) 412 err(EX_OSERR, "could not activate CPU %d", vi->vcpuid); 413 414 CPU_SET_ATOMIC(vcpuid, &cpumask); 415 416 error = vm_suspend_cpu(vi->vcpu); 417 assert(error == 0); 418 419 error = pthread_create(&thr, NULL, fbsdrun_start_thread, vi); 420 assert(error == 0); 421 } 422 423 void 424 fbsdrun_deletecpu(int vcpu) 425 { 426 static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER; 427 static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER; 428 429 pthread_mutex_lock(&resetcpu_mtx); 430 if (!CPU_ISSET(vcpu, &cpumask)) { 431 EPRINTLN("Attempting to delete unknown cpu %d", vcpu); 432 exit(4); 433 } 434 435 CPU_CLR(vcpu, &cpumask); 436 437 if (vcpu != BSP) { 438 pthread_cond_signal(&resetcpu_cond); 439 pthread_mutex_unlock(&resetcpu_mtx); 440 pthread_exit(NULL); 441 /* NOTREACHED */ 442 } 443 444 while (!CPU_EMPTY(&cpumask)) { 445 pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx); 446 } 447 pthread_mutex_unlock(&resetcpu_mtx); 448 } 449 450 int 451 fbsdrun_suspendcpu(int vcpuid) 452 { 453 return (vm_suspend_cpu(vcpu_info[vcpuid].vcpu)); 454 } 455 456 static void 457 vm_loop(struct vmctx *ctx, struct vcpu *vcpu) 458 { 459 struct vm_exit vme; 460 struct vm_run vmrun; 461 int error, rc; 462 enum vm_exitcode exitcode; 463 cpuset_t active_cpus, dmask; 464 465 error = vm_active_cpus(ctx, &active_cpus); 466 assert(CPU_ISSET(vcpu_id(vcpu), &active_cpus)); 467 468 vmrun.vm_exit = &vme; 469 vmrun.cpuset = &dmask; 470 vmrun.cpusetsize = sizeof(dmask); 471 472 while (1) { 473 error = vm_run(vcpu, &vmrun); 474 if (error != 0) 475 break; 476 477 exitcode = vme.exitcode; 478 if (exitcode >= VM_EXITCODE_MAX || 479 vmexit_handlers[exitcode] == NULL) { 480 warnx("vm_loop: unexpected exitcode 0x%x", exitcode); 481 exit(4); 482 } 483 484 rc = (*vmexit_handlers[exitcode])(ctx, vcpu, &vmrun); 485 486 switch (rc) { 487 case VMEXIT_CONTINUE: 488 break; 489 case VMEXIT_ABORT: 490 abort(); 491 default: 492 exit(4); 493 } 494 } 495 EPRINTLN("vm_run error %d, errno %d", error, errno); 496 } 497 498 static int 499 num_vcpus_allowed(struct vmctx *ctx, struct vcpu *vcpu) 500 { 501 uint16_t sockets, cores, threads, maxcpus; 502 int tmp, error; 503 504 /* 505 * The guest is allowed to spinup more than one processor only if the 506 * UNRESTRICTED_GUEST capability is available. 507 */ 508 error = vm_get_capability(vcpu, VM_CAP_UNRESTRICTED_GUEST, &tmp); 509 if (error != 0) 510 return (1); 511 512 error = vm_get_topology(ctx, &sockets, &cores, &threads, &maxcpus); 513 if (error == 0) 514 return (maxcpus); 515 else 516 return (1); 517 } 518 519 static struct vmctx * 520 do_open(const char *vmname) 521 { 522 struct vmctx *ctx; 523 int error; 524 bool reinit, romboot; 525 526 reinit = false; 527 528 romboot = bootrom_boot(); 529 error = vm_create(vmname); 530 if (error) { 531 if (errno == EEXIST) { 532 if (romboot) { 533 reinit = true; 534 } else { 535 /* 536 * The virtual machine has been setup by the 537 * userspace bootloader. 538 */ 539 } 540 } else { 541 perror("vm_create"); 542 exit(4); 543 } 544 } else { 545 if (!romboot) { 546 /* 547 * If the virtual machine was just created then a 548 * bootrom must be configured to boot it. 549 */ 550 fprintf(stderr, "virtual machine cannot be booted\n"); 551 exit(4); 552 } 553 } 554 555 ctx = vm_open(vmname); 556 if (ctx == NULL) { 557 perror("vm_open"); 558 exit(4); 559 } 560 561 #ifndef WITHOUT_CAPSICUM 562 if (vm_limit_rights(ctx) != 0) 563 err(EX_OSERR, "vm_limit_rights"); 564 #endif 565 566 if (reinit) { 567 error = vm_reinit(ctx); 568 if (error) { 569 perror("vm_reinit"); 570 exit(4); 571 } 572 } 573 error = vm_set_topology(ctx, cpu_sockets, cpu_cores, cpu_threads, 0); 574 if (error) 575 errx(EX_OSERR, "vm_set_topology"); 576 return (ctx); 577 } 578 579 bool 580 bhyve_parse_config_option(const char *option) 581 { 582 const char *value; 583 char *path; 584 585 value = strchr(option, '='); 586 if (value == NULL || value[1] == '\0') 587 return (false); 588 path = strndup(option, value - option); 589 if (path == NULL) 590 err(4, "Failed to allocate memory"); 591 set_config_value(path, value + 1); 592 free(path); 593 return (true); 594 } 595 596 void 597 bhyve_parse_simple_config_file(const char *path) 598 { 599 FILE *fp; 600 char *line, *cp; 601 size_t linecap; 602 unsigned int lineno; 603 604 fp = fopen(path, "r"); 605 if (fp == NULL) 606 err(4, "Failed to open configuration file %s", path); 607 line = NULL; 608 linecap = 0; 609 lineno = 1; 610 for (lineno = 1; getline(&line, &linecap, fp) > 0; lineno++) { 611 if (*line == '#' || *line == '\n') 612 continue; 613 cp = strchr(line, '\n'); 614 if (cp != NULL) 615 *cp = '\0'; 616 if (!bhyve_parse_config_option(line)) 617 errx(4, "%s line %u: invalid config option '%s'", path, 618 lineno, line); 619 } 620 free(line); 621 fclose(fp); 622 } 623 624 #ifdef BHYVE_GDB 625 void 626 bhyve_parse_gdb_options(const char *opt) 627 { 628 const char *sport; 629 char *colon; 630 631 if (opt[0] == 'w') { 632 set_config_bool("gdb.wait", true); 633 opt++; 634 } 635 636 colon = strrchr(opt, ':'); 637 if (colon == NULL) { 638 sport = opt; 639 } else { 640 *colon = '\0'; 641 colon++; 642 sport = colon; 643 set_config_value("gdb.address", opt); 644 } 645 646 set_config_value("gdb.port", sport); 647 } 648 #endif 649 650 int 651 main(int argc, char *argv[]) 652 { 653 int error; 654 int max_vcpus, memflags; 655 struct vcpu *bsp; 656 struct vmctx *ctx; 657 size_t memsize; 658 const char *value, *vmname; 659 #ifdef BHYVE_SNAPSHOT 660 struct restore_state rstate; 661 #endif 662 663 bhyve_init_config(); 664 bhyve_optparse(argc, argv); 665 argc -= optind; 666 argv += optind; 667 668 if (argc > 1) 669 bhyve_usage(1); 670 671 #ifdef BHYVE_SNAPSHOT 672 if (restore_file != NULL) { 673 error = load_restore_file(restore_file, &rstate); 674 if (error) { 675 fprintf(stderr, "Failed to read checkpoint info from " 676 "file: '%s'.\n", restore_file); 677 exit(1); 678 } 679 vmname = lookup_vmname(&rstate); 680 if (vmname != NULL) 681 set_config_value("name", vmname); 682 } 683 #endif 684 685 if (argc == 1) 686 set_config_value("name", argv[0]); 687 688 vmname = get_config_value("name"); 689 if (vmname == NULL) 690 bhyve_usage(1); 691 692 if (get_config_bool_default("config.dump", false)) { 693 dump_config(); 694 exit(1); 695 } 696 697 calc_topology(); 698 build_vcpumaps(); 699 700 value = get_config_value("memory.size"); 701 error = vm_parse_memsize(value, &memsize); 702 if (error) 703 errx(EX_USAGE, "invalid memsize '%s'", value); 704 705 ctx = do_open(vmname); 706 707 #ifdef BHYVE_SNAPSHOT 708 if (restore_file != NULL) { 709 guest_ncpus = lookup_guest_ncpus(&rstate); 710 memflags = lookup_memflags(&rstate); 711 memsize = lookup_memsize(&rstate); 712 } 713 714 if (guest_ncpus < 1) { 715 fprintf(stderr, "Invalid guest vCPUs (%d)\n", guest_ncpus); 716 exit(1); 717 } 718 #endif 719 720 bsp = vm_vcpu_open(ctx, BSP); 721 max_vcpus = num_vcpus_allowed(ctx, bsp); 722 if (guest_ncpus > max_vcpus) { 723 fprintf(stderr, "%d vCPUs requested but only %d available\n", 724 guest_ncpus, max_vcpus); 725 exit(4); 726 } 727 728 bhyve_init_vcpu(bsp); 729 730 /* Allocate per-VCPU resources. */ 731 vcpu_info = calloc(guest_ncpus, sizeof(*vcpu_info)); 732 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) { 733 vcpu_info[vcpuid].ctx = ctx; 734 vcpu_info[vcpuid].vcpuid = vcpuid; 735 if (vcpuid == BSP) 736 vcpu_info[vcpuid].vcpu = bsp; 737 else 738 vcpu_info[vcpuid].vcpu = vm_vcpu_open(ctx, vcpuid); 739 } 740 741 memflags = 0; 742 if (get_config_bool_default("memory.wired", false)) 743 memflags |= VM_MEM_F_WIRED; 744 if (get_config_bool_default("memory.guest_in_core", false)) 745 memflags |= VM_MEM_F_INCORE; 746 vm_set_memflags(ctx, memflags); 747 error = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 748 if (error) { 749 fprintf(stderr, "Unable to setup memory (%d)\n", errno); 750 exit(4); 751 } 752 753 init_mem(guest_ncpus); 754 init_bootrom(ctx); 755 if (bhyve_init_platform(ctx, bsp) != 0) 756 exit(4); 757 758 if (qemu_fwcfg_init(ctx) != 0) { 759 fprintf(stderr, "qemu fwcfg initialization error\n"); 760 exit(4); 761 } 762 763 if (qemu_fwcfg_add_file("opt/bhyve/hw.ncpu", sizeof(guest_ncpus), 764 &guest_ncpus) != 0) { 765 fprintf(stderr, "Could not add qemu fwcfg opt/bhyve/hw.ncpu\n"); 766 exit(4); 767 } 768 769 /* 770 * Exit if a device emulation finds an error in its initialization 771 */ 772 if (init_pci(ctx) != 0) { 773 EPRINTLN("Device emulation initialization error: %s", 774 strerror(errno)); 775 exit(4); 776 } 777 if (init_tpm(ctx) != 0) { 778 EPRINTLN("Failed to init TPM device"); 779 exit(4); 780 } 781 782 /* 783 * Initialize after PCI, to allow a bootrom file to reserve the high 784 * region. 785 */ 786 if (get_config_bool("acpi_tables")) 787 vmgenc_init(ctx); 788 789 #ifdef BHYVE_GDB 790 init_gdb(ctx); 791 #endif 792 793 /* 794 * Add all vCPUs. 795 */ 796 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) 797 bhyve_start_vcpu(vcpu_info[vcpuid].vcpu, vcpuid == BSP); 798 799 #ifdef BHYVE_SNAPSHOT 800 if (restore_file != NULL) { 801 FPRINTLN(stdout, "Pausing pci devs..."); 802 if (vm_pause_devices() != 0) { 803 EPRINTLN("Failed to pause PCI device state."); 804 exit(1); 805 } 806 807 FPRINTLN(stdout, "Restoring vm mem..."); 808 if (restore_vm_mem(ctx, &rstate) != 0) { 809 EPRINTLN("Failed to restore VM memory."); 810 exit(1); 811 } 812 813 FPRINTLN(stdout, "Restoring pci devs..."); 814 if (vm_restore_devices(&rstate) != 0) { 815 EPRINTLN("Failed to restore PCI device state."); 816 exit(1); 817 } 818 819 FPRINTLN(stdout, "Restoring kernel structs..."); 820 if (vm_restore_kern_structs(ctx, &rstate) != 0) { 821 EPRINTLN("Failed to restore kernel structs."); 822 exit(1); 823 } 824 825 FPRINTLN(stdout, "Resuming pci devs..."); 826 if (vm_resume_devices() != 0) { 827 EPRINTLN("Failed to resume PCI device state."); 828 exit(1); 829 } 830 } 831 #endif 832 833 if (bhyve_init_platform_late(ctx, bsp) != 0) 834 exit(4); 835 836 /* 837 * Change the proc title to include the VM name. 838 */ 839 setproctitle("%s", vmname); 840 841 #ifdef BHYVE_SNAPSHOT 842 /* 843 * checkpointing thread for communication with bhyvectl 844 */ 845 if (init_checkpoint_thread(ctx) != 0) 846 errx(EX_OSERR, "Failed to start checkpoint thread"); 847 #endif 848 849 #ifndef WITHOUT_CAPSICUM 850 caph_cache_catpages(); 851 852 if (caph_limit_stdout() == -1 || caph_limit_stderr() == -1) 853 errx(EX_OSERR, "Unable to apply rights for sandbox"); 854 855 if (caph_enter() == -1) 856 errx(EX_OSERR, "cap_enter() failed"); 857 #endif 858 859 #ifdef BHYVE_SNAPSHOT 860 if (restore_file != NULL) { 861 destroy_restore_state(&rstate); 862 if (vm_restore_time(ctx) < 0) 863 err(EX_OSERR, "Unable to restore time"); 864 865 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) 866 vm_resume_cpu(vcpu_info[vcpuid].vcpu); 867 } else 868 #endif 869 vm_resume_cpu(bsp); 870 871 /* 872 * Head off to the main event dispatch loop 873 */ 874 mevent_dispatch(); 875 876 exit(4); 877 } 878