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 vm_suspend_cpu(vi->vcpu); 417 418 error = pthread_create(&thr, NULL, fbsdrun_start_thread, vi); 419 assert(error == 0); 420 } 421 422 void 423 fbsdrun_deletecpu(int vcpu) 424 { 425 static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER; 426 static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER; 427 428 pthread_mutex_lock(&resetcpu_mtx); 429 if (!CPU_ISSET(vcpu, &cpumask)) { 430 EPRINTLN("Attempting to delete unknown cpu %d", vcpu); 431 exit(4); 432 } 433 434 CPU_CLR(vcpu, &cpumask); 435 436 if (vcpu != BSP) { 437 pthread_cond_signal(&resetcpu_cond); 438 pthread_mutex_unlock(&resetcpu_mtx); 439 pthread_exit(NULL); 440 /* NOTREACHED */ 441 } 442 443 while (!CPU_EMPTY(&cpumask)) { 444 pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx); 445 } 446 pthread_mutex_unlock(&resetcpu_mtx); 447 } 448 449 int 450 fbsdrun_suspendcpu(int vcpuid) 451 { 452 return (vm_suspend_cpu(vcpu_info[vcpuid].vcpu)); 453 } 454 455 static void 456 vm_loop(struct vmctx *ctx, struct vcpu *vcpu) 457 { 458 struct vm_exit vme; 459 struct vm_run vmrun; 460 int error, rc; 461 enum vm_exitcode exitcode; 462 cpuset_t active_cpus, dmask; 463 464 error = vm_active_cpus(ctx, &active_cpus); 465 assert(CPU_ISSET(vcpu_id(vcpu), &active_cpus)); 466 467 vmrun.vm_exit = &vme; 468 vmrun.cpuset = &dmask; 469 vmrun.cpusetsize = sizeof(dmask); 470 471 while (1) { 472 error = vm_run(vcpu, &vmrun); 473 if (error != 0) 474 break; 475 476 exitcode = vme.exitcode; 477 if (exitcode >= VM_EXITCODE_MAX || 478 vmexit_handlers[exitcode] == NULL) { 479 warnx("vm_loop: unexpected exitcode 0x%x", exitcode); 480 exit(4); 481 } 482 483 rc = (*vmexit_handlers[exitcode])(ctx, vcpu, &vmrun); 484 485 switch (rc) { 486 case VMEXIT_CONTINUE: 487 break; 488 case VMEXIT_ABORT: 489 abort(); 490 default: 491 exit(4); 492 } 493 } 494 EPRINTLN("vm_run error %d, errno %d", error, errno); 495 } 496 497 static int 498 num_vcpus_allowed(struct vmctx *ctx, struct vcpu *vcpu) 499 { 500 uint16_t sockets, cores, threads, maxcpus; 501 int tmp, error; 502 503 /* 504 * The guest is allowed to spinup more than one processor only if the 505 * UNRESTRICTED_GUEST capability is available. 506 */ 507 error = vm_get_capability(vcpu, VM_CAP_UNRESTRICTED_GUEST, &tmp); 508 if (error != 0) 509 return (1); 510 511 error = vm_get_topology(ctx, &sockets, &cores, &threads, &maxcpus); 512 if (error == 0) 513 return (maxcpus); 514 else 515 return (1); 516 } 517 518 static struct vmctx * 519 do_open(const char *vmname) 520 { 521 struct vmctx *ctx; 522 int error; 523 bool reinit, romboot; 524 525 reinit = false; 526 527 #ifdef __amd64__ 528 romboot = lpc_bootrom() != NULL; 529 #else 530 romboot = true; 531 #endif 532 533 error = vm_create(vmname); 534 if (error) { 535 if (errno == EEXIST) { 536 if (romboot) { 537 reinit = true; 538 } else { 539 /* 540 * The virtual machine has been setup by the 541 * userspace bootloader. 542 */ 543 } 544 } else { 545 perror("vm_create"); 546 exit(4); 547 } 548 } else { 549 if (!romboot) { 550 /* 551 * If the virtual machine was just created then a 552 * bootrom must be configured to boot it. 553 */ 554 fprintf(stderr, "virtual machine cannot be booted\n"); 555 exit(4); 556 } 557 } 558 559 ctx = vm_open(vmname); 560 if (ctx == NULL) { 561 perror("vm_open"); 562 exit(4); 563 } 564 565 #ifndef WITHOUT_CAPSICUM 566 if (vm_limit_rights(ctx) != 0) 567 err(EX_OSERR, "vm_limit_rights"); 568 #endif 569 570 if (reinit) { 571 error = vm_reinit(ctx); 572 if (error) { 573 perror("vm_reinit"); 574 exit(4); 575 } 576 } 577 error = vm_set_topology(ctx, cpu_sockets, cpu_cores, cpu_threads, 0); 578 if (error) 579 errx(EX_OSERR, "vm_set_topology"); 580 return (ctx); 581 } 582 583 bool 584 bhyve_parse_config_option(const char *option) 585 { 586 const char *value; 587 char *path; 588 589 value = strchr(option, '='); 590 if (value == NULL || value[1] == '\0') 591 return (false); 592 path = strndup(option, value - option); 593 if (path == NULL) 594 err(4, "Failed to allocate memory"); 595 set_config_value(path, value + 1); 596 free(path); 597 return (true); 598 } 599 600 void 601 bhyve_parse_simple_config_file(const char *path) 602 { 603 FILE *fp; 604 char *line, *cp; 605 size_t linecap; 606 unsigned int lineno; 607 608 fp = fopen(path, "r"); 609 if (fp == NULL) 610 err(4, "Failed to open configuration file %s", path); 611 line = NULL; 612 linecap = 0; 613 lineno = 1; 614 for (lineno = 1; getline(&line, &linecap, fp) > 0; lineno++) { 615 if (*line == '#' || *line == '\n') 616 continue; 617 cp = strchr(line, '\n'); 618 if (cp != NULL) 619 *cp = '\0'; 620 if (!bhyve_parse_config_option(line)) 621 errx(4, "%s line %u: invalid config option '%s'", path, 622 lineno, line); 623 } 624 free(line); 625 fclose(fp); 626 } 627 628 #ifdef BHYVE_GDB 629 void 630 bhyve_parse_gdb_options(const char *opt) 631 { 632 const char *sport; 633 char *colon; 634 635 if (opt[0] == 'w') { 636 set_config_bool("gdb.wait", true); 637 opt++; 638 } 639 640 colon = strrchr(opt, ':'); 641 if (colon == NULL) { 642 sport = opt; 643 } else { 644 *colon = '\0'; 645 colon++; 646 sport = colon; 647 set_config_value("gdb.address", opt); 648 } 649 650 set_config_value("gdb.port", sport); 651 } 652 #endif 653 654 int 655 main(int argc, char *argv[]) 656 { 657 int error; 658 int max_vcpus, memflags; 659 struct vcpu *bsp; 660 struct vmctx *ctx; 661 size_t memsize; 662 const char *value, *vmname; 663 #ifdef BHYVE_SNAPSHOT 664 struct restore_state rstate; 665 #endif 666 667 bhyve_init_config(); 668 bhyve_optparse(argc, argv); 669 argc -= optind; 670 argv += optind; 671 672 if (argc > 1) 673 bhyve_usage(1); 674 675 #ifdef BHYVE_SNAPSHOT 676 if (restore_file != NULL) { 677 error = load_restore_file(restore_file, &rstate); 678 if (error) { 679 fprintf(stderr, "Failed to read checkpoint info from " 680 "file: '%s'.\n", restore_file); 681 exit(1); 682 } 683 vmname = lookup_vmname(&rstate); 684 if (vmname != NULL) 685 set_config_value("name", vmname); 686 } 687 #endif 688 689 if (argc == 1) 690 set_config_value("name", argv[0]); 691 692 vmname = get_config_value("name"); 693 if (vmname == NULL) 694 bhyve_usage(1); 695 696 if (get_config_bool_default("config.dump", false)) { 697 dump_config(); 698 exit(1); 699 } 700 701 calc_topology(); 702 build_vcpumaps(); 703 704 value = get_config_value("memory.size"); 705 error = vm_parse_memsize(value, &memsize); 706 if (error) 707 errx(EX_USAGE, "invalid memsize '%s'", value); 708 709 ctx = do_open(vmname); 710 711 #ifdef BHYVE_SNAPSHOT 712 if (restore_file != NULL) { 713 guest_ncpus = lookup_guest_ncpus(&rstate); 714 memflags = lookup_memflags(&rstate); 715 memsize = lookup_memsize(&rstate); 716 } 717 718 if (guest_ncpus < 1) { 719 fprintf(stderr, "Invalid guest vCPUs (%d)\n", guest_ncpus); 720 exit(1); 721 } 722 #endif 723 724 bsp = vm_vcpu_open(ctx, BSP); 725 max_vcpus = num_vcpus_allowed(ctx, bsp); 726 if (guest_ncpus > max_vcpus) { 727 fprintf(stderr, "%d vCPUs requested but only %d available\n", 728 guest_ncpus, max_vcpus); 729 exit(4); 730 } 731 732 bhyve_init_vcpu(bsp); 733 734 /* Allocate per-VCPU resources. */ 735 vcpu_info = calloc(guest_ncpus, sizeof(*vcpu_info)); 736 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) { 737 vcpu_info[vcpuid].ctx = ctx; 738 vcpu_info[vcpuid].vcpuid = vcpuid; 739 if (vcpuid == BSP) 740 vcpu_info[vcpuid].vcpu = bsp; 741 else 742 vcpu_info[vcpuid].vcpu = vm_vcpu_open(ctx, vcpuid); 743 } 744 745 memflags = 0; 746 if (get_config_bool_default("memory.wired", false)) 747 memflags |= VM_MEM_F_WIRED; 748 if (get_config_bool_default("memory.guest_in_core", false)) 749 memflags |= VM_MEM_F_INCORE; 750 vm_set_memflags(ctx, memflags); 751 error = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 752 if (error) { 753 fprintf(stderr, "Unable to setup memory (%d)\n", errno); 754 exit(4); 755 } 756 757 init_mem(guest_ncpus); 758 init_bootrom(ctx); 759 if (bhyve_init_platform(ctx, bsp) != 0) 760 exit(4); 761 762 if (qemu_fwcfg_init(ctx) != 0) { 763 fprintf(stderr, "qemu fwcfg initialization error\n"); 764 exit(4); 765 } 766 767 if (qemu_fwcfg_add_file("opt/bhyve/hw.ncpu", sizeof(guest_ncpus), 768 &guest_ncpus) != 0) { 769 fprintf(stderr, "Could not add qemu fwcfg opt/bhyve/hw.ncpu\n"); 770 exit(4); 771 } 772 773 /* 774 * Exit if a device emulation finds an error in its initialization 775 */ 776 if (init_pci(ctx) != 0) { 777 EPRINTLN("Device emulation initialization error: %s", 778 strerror(errno)); 779 exit(4); 780 } 781 if (init_tpm(ctx) != 0) { 782 EPRINTLN("Failed to init TPM device"); 783 exit(4); 784 } 785 786 /* 787 * Initialize after PCI, to allow a bootrom file to reserve the high 788 * region. 789 */ 790 if (get_config_bool("acpi_tables")) 791 vmgenc_init(ctx); 792 793 #ifdef BHYVE_GDB 794 init_gdb(ctx); 795 #endif 796 797 /* 798 * Add all vCPUs. 799 */ 800 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) 801 bhyve_start_vcpu(vcpu_info[vcpuid].vcpu, vcpuid == BSP); 802 803 #ifdef BHYVE_SNAPSHOT 804 if (restore_file != NULL) { 805 FPRINTLN(stdout, "Pausing pci devs..."); 806 if (vm_pause_devices() != 0) { 807 EPRINTLN("Failed to pause PCI device state."); 808 exit(1); 809 } 810 811 FPRINTLN(stdout, "Restoring vm mem..."); 812 if (restore_vm_mem(ctx, &rstate) != 0) { 813 EPRINTLN("Failed to restore VM memory."); 814 exit(1); 815 } 816 817 FPRINTLN(stdout, "Restoring pci devs..."); 818 if (vm_restore_devices(&rstate) != 0) { 819 EPRINTLN("Failed to restore PCI device state."); 820 exit(1); 821 } 822 823 FPRINTLN(stdout, "Restoring kernel structs..."); 824 if (vm_restore_kern_structs(ctx, &rstate) != 0) { 825 EPRINTLN("Failed to restore kernel structs."); 826 exit(1); 827 } 828 829 FPRINTLN(stdout, "Resuming pci devs..."); 830 if (vm_resume_devices() != 0) { 831 EPRINTLN("Failed to resume PCI device state."); 832 exit(1); 833 } 834 } 835 #endif 836 837 if (bhyve_init_platform_late(ctx, bsp) != 0) 838 exit(4); 839 840 /* 841 * Change the proc title to include the VM name. 842 */ 843 setproctitle("%s", vmname); 844 845 #ifdef BHYVE_SNAPSHOT 846 /* 847 * checkpointing thread for communication with bhyvectl 848 */ 849 if (init_checkpoint_thread(ctx) != 0) 850 errx(EX_OSERR, "Failed to start checkpoint thread"); 851 #endif 852 853 #ifndef WITHOUT_CAPSICUM 854 caph_cache_catpages(); 855 856 if (caph_limit_stdout() == -1 || caph_limit_stderr() == -1) 857 errx(EX_OSERR, "Unable to apply rights for sandbox"); 858 859 if (caph_enter() == -1) 860 errx(EX_OSERR, "cap_enter() failed"); 861 #endif 862 863 #ifdef BHYVE_SNAPSHOT 864 if (restore_file != NULL) { 865 destroy_restore_state(&rstate); 866 if (vm_restore_time(ctx) < 0) 867 err(EX_OSERR, "Unable to restore time"); 868 869 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) 870 vm_resume_cpu(vcpu_info[vcpuid].vcpu); 871 } else 872 #endif 873 vm_resume_cpu(bsp); 874 875 /* 876 * Head off to the main event dispatch loop 877 */ 878 mevent_dispatch(); 879 880 exit(4); 881 } 882