1 /*- 2 * Copyright (c) 2011 NetApp, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/types.h> 33 #include <sys/mman.h> 34 #include <sys/time.h> 35 36 #include <machine/atomic.h> 37 #include <machine/segments.h> 38 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <err.h> 43 #include <libgen.h> 44 #include <unistd.h> 45 #include <assert.h> 46 #include <errno.h> 47 #include <pthread.h> 48 #include <pthread_np.h> 49 #include <sysexits.h> 50 51 #include <machine/vmm.h> 52 #include <vmmapi.h> 53 54 #include "bhyverun.h" 55 #include "acpi.h" 56 #include "inout.h" 57 #include "dbgport.h" 58 #include "ioapic.h" 59 #include "mem.h" 60 #include "mevent.h" 61 #include "mptbl.h" 62 #include "pci_emul.h" 63 #include "pci_lpc.h" 64 #include "smbiostbl.h" 65 #include "xmsr.h" 66 #include "spinup_ap.h" 67 #include "rtc.h" 68 69 #define GUEST_NIO_PORT 0x488 /* guest upcalls via i/o port */ 70 71 #define VMEXIT_SWITCH 0 /* force vcpu switch in mux mode */ 72 #define VMEXIT_CONTINUE 1 /* continue from next instruction */ 73 #define VMEXIT_RESTART 2 /* restart current instruction */ 74 #define VMEXIT_ABORT 3 /* abort the vm run loop */ 75 #define VMEXIT_RESET 4 /* guest machine has reset */ 76 #define VMEXIT_POWEROFF 5 /* guest machine has powered off */ 77 78 #define MB (1024UL * 1024) 79 #define GB (1024UL * MB) 80 81 typedef int (*vmexit_handler_t)(struct vmctx *, struct vm_exit *, int *vcpu); 82 83 char *vmname; 84 85 int guest_ncpus; 86 char *guest_uuid_str; 87 88 static int pincpu = -1; 89 static int guest_vmexit_on_hlt, guest_vmexit_on_pause; 90 static int virtio_msix = 1; 91 static int x2apic_mode = 0; /* default is xAPIC */ 92 93 static int strictio; 94 static int strictmsr = 1; 95 96 static int acpi; 97 98 static char *progname; 99 static const int BSP = 0; 100 101 static int cpumask; 102 103 static void vm_loop(struct vmctx *ctx, int vcpu, uint64_t rip); 104 105 struct vm_exit vmexit[VM_MAXCPU]; 106 107 struct bhyvestats { 108 uint64_t vmexit_bogus; 109 uint64_t vmexit_bogus_switch; 110 uint64_t vmexit_hlt; 111 uint64_t vmexit_pause; 112 uint64_t vmexit_mtrap; 113 uint64_t vmexit_inst_emul; 114 uint64_t cpu_switch_rotate; 115 uint64_t cpu_switch_direct; 116 int io_reset; 117 } stats; 118 119 struct mt_vmm_info { 120 pthread_t mt_thr; 121 struct vmctx *mt_ctx; 122 int mt_vcpu; 123 } mt_vmm_info[VM_MAXCPU]; 124 125 static void 126 usage(int code) 127 { 128 129 fprintf(stderr, 130 "Usage: %s [-aehwAHIPW] [-g <gdb port>] [-s <pci>]\n" 131 " %*s [-c vcpus] [-p pincpu] [-m mem] [-l <lpc>] <vm>\n" 132 " -a: local apic is in xAPIC mode (deprecated)\n" 133 " -A: create an ACPI table\n" 134 " -g: gdb port\n" 135 " -c: # cpus (default 1)\n" 136 " -p: pin vcpu 'n' to host cpu 'pincpu + n'\n" 137 " -H: vmexit from the guest on hlt\n" 138 " -P: vmexit from the guest on pause\n" 139 " -W: force virtio to use single-vector MSI\n" 140 " -e: exit on unhandled I/O access\n" 141 " -h: help\n" 142 " -s: <slot,driver,configinfo> PCI slot config\n" 143 " -l: LPC device configuration\n" 144 " -m: memory size in MB\n" 145 " -w: ignore unimplemented MSRs\n" 146 " -x: local apic is in x2APIC mode\n" 147 " -U: uuid\n", 148 progname, (int)strlen(progname), ""); 149 150 exit(code); 151 } 152 153 void * 154 paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len) 155 { 156 157 return (vm_map_gpa(ctx, gaddr, len)); 158 } 159 160 int 161 fbsdrun_vmexit_on_pause(void) 162 { 163 164 return (guest_vmexit_on_pause); 165 } 166 167 int 168 fbsdrun_vmexit_on_hlt(void) 169 { 170 171 return (guest_vmexit_on_hlt); 172 } 173 174 int 175 fbsdrun_virtio_msix(void) 176 { 177 178 return (virtio_msix); 179 } 180 181 static void * 182 fbsdrun_start_thread(void *param) 183 { 184 char tname[MAXCOMLEN + 1]; 185 struct mt_vmm_info *mtp; 186 int vcpu; 187 188 mtp = param; 189 vcpu = mtp->mt_vcpu; 190 191 snprintf(tname, sizeof(tname), "vcpu %d", vcpu); 192 pthread_set_name_np(mtp->mt_thr, tname); 193 194 vm_loop(mtp->mt_ctx, vcpu, vmexit[vcpu].rip); 195 196 /* not reached */ 197 exit(1); 198 return (NULL); 199 } 200 201 void 202 fbsdrun_addcpu(struct vmctx *ctx, int vcpu, uint64_t rip) 203 { 204 int error; 205 206 if (cpumask & (1 << vcpu)) { 207 fprintf(stderr, "addcpu: attempting to add existing cpu %d\n", 208 vcpu); 209 exit(1); 210 } 211 212 atomic_set_int(&cpumask, 1 << vcpu); 213 214 /* 215 * Set up the vmexit struct to allow execution to start 216 * at the given RIP 217 */ 218 vmexit[vcpu].rip = rip; 219 vmexit[vcpu].inst_length = 0; 220 221 mt_vmm_info[vcpu].mt_ctx = ctx; 222 mt_vmm_info[vcpu].mt_vcpu = vcpu; 223 224 error = pthread_create(&mt_vmm_info[vcpu].mt_thr, NULL, 225 fbsdrun_start_thread, &mt_vmm_info[vcpu]); 226 assert(error == 0); 227 } 228 229 static int 230 fbsdrun_deletecpu(struct vmctx *ctx, int vcpu) 231 { 232 233 if ((cpumask & (1 << vcpu)) == 0) { 234 fprintf(stderr, "addcpu: attempting to delete unknown cpu %d\n", 235 vcpu); 236 exit(1); 237 } 238 239 atomic_clear_int(&cpumask, 1 << vcpu); 240 return (cpumask == 0); 241 } 242 243 static int 244 vmexit_catch_reset(void) 245 { 246 stats.io_reset++; 247 return (VMEXIT_RESET); 248 } 249 250 static int 251 vmexit_catch_inout(void) 252 { 253 return (VMEXIT_ABORT); 254 } 255 256 static int 257 vmexit_handle_notify(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu, 258 uint32_t eax) 259 { 260 #if BHYVE_DEBUG 261 /* 262 * put guest-driven debug here 263 */ 264 #endif 265 return (VMEXIT_CONTINUE); 266 } 267 268 static int 269 vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 270 { 271 int error; 272 int bytes, port, in, out; 273 uint32_t eax; 274 int vcpu; 275 276 vcpu = *pvcpu; 277 278 port = vme->u.inout.port; 279 bytes = vme->u.inout.bytes; 280 eax = vme->u.inout.eax; 281 in = vme->u.inout.in; 282 out = !in; 283 284 /* We don't deal with these */ 285 if (vme->u.inout.string || vme->u.inout.rep) 286 return (VMEXIT_ABORT); 287 288 /* Special case of guest reset */ 289 if (out && port == 0x64 && (uint8_t)eax == 0xFE) 290 return (vmexit_catch_reset()); 291 292 /* Extra-special case of host notifications */ 293 if (out && port == GUEST_NIO_PORT) 294 return (vmexit_handle_notify(ctx, vme, pvcpu, eax)); 295 296 error = emulate_inout(ctx, vcpu, in, port, bytes, &eax, strictio); 297 if (error == INOUT_OK && in) 298 error = vm_set_register(ctx, vcpu, VM_REG_GUEST_RAX, eax); 299 300 switch (error) { 301 case INOUT_OK: 302 return (VMEXIT_CONTINUE); 303 case INOUT_RESET: 304 return (VMEXIT_RESET); 305 case INOUT_POWEROFF: 306 return (VMEXIT_POWEROFF); 307 default: 308 fprintf(stderr, "Unhandled %s%c 0x%04x\n", 309 in ? "in" : "out", 310 bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), port); 311 return (vmexit_catch_inout()); 312 } 313 } 314 315 static int 316 vmexit_rdmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 317 { 318 uint64_t val; 319 uint32_t eax, edx; 320 int error; 321 322 val = 0; 323 error = emulate_rdmsr(ctx, *pvcpu, vme->u.msr.code, &val); 324 if (error != 0) { 325 fprintf(stderr, "rdmsr to register %#x on vcpu %d\n", 326 vme->u.msr.code, *pvcpu); 327 if (strictmsr) { 328 error = vm_inject_exception2(ctx, *pvcpu, IDT_GP, 0); 329 assert(error == 0); 330 return (VMEXIT_RESTART); 331 } 332 } 333 334 eax = val; 335 error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RAX, eax); 336 assert(error == 0); 337 338 edx = val >> 32; 339 error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RDX, edx); 340 assert(error == 0); 341 342 return (VMEXIT_CONTINUE); 343 } 344 345 static int 346 vmexit_wrmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 347 { 348 int error; 349 350 error = emulate_wrmsr(ctx, *pvcpu, vme->u.msr.code, vme->u.msr.wval); 351 if (error != 0) { 352 fprintf(stderr, "wrmsr to register %#x(%#lx) on vcpu %d\n", 353 vme->u.msr.code, vme->u.msr.wval, *pvcpu); 354 if (strictmsr) { 355 error = vm_inject_exception2(ctx, *pvcpu, IDT_GP, 0); 356 assert(error == 0); 357 return (VMEXIT_RESTART); 358 } 359 } 360 return (VMEXIT_CONTINUE); 361 } 362 363 static int 364 vmexit_spinup_ap(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 365 { 366 int newcpu; 367 int retval = VMEXIT_CONTINUE; 368 369 newcpu = spinup_ap(ctx, *pvcpu, 370 vme->u.spinup_ap.vcpu, vme->u.spinup_ap.rip); 371 372 return (retval); 373 } 374 375 static int 376 vmexit_spindown_cpu(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 377 { 378 int lastcpu; 379 380 lastcpu = fbsdrun_deletecpu(ctx, *pvcpu); 381 if (!lastcpu) 382 pthread_exit(NULL); 383 return (vmexit_catch_reset()); 384 } 385 386 static int 387 vmexit_vmx(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 388 { 389 390 fprintf(stderr, "vm exit[%d]\n", *pvcpu); 391 fprintf(stderr, "\treason\t\tVMX\n"); 392 fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip); 393 fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length); 394 fprintf(stderr, "\tstatus\t\t%d\n", vmexit->u.vmx.status); 395 fprintf(stderr, "\texit_reason\t%u\n", vmexit->u.vmx.exit_reason); 396 fprintf(stderr, "\tqualification\t0x%016lx\n", 397 vmexit->u.vmx.exit_qualification); 398 fprintf(stderr, "\tinst_type\t\t%d\n", vmexit->u.vmx.inst_type); 399 fprintf(stderr, "\tinst_error\t\t%d\n", vmexit->u.vmx.inst_error); 400 401 return (VMEXIT_ABORT); 402 } 403 404 static int 405 vmexit_bogus(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 406 { 407 408 stats.vmexit_bogus++; 409 410 return (VMEXIT_RESTART); 411 } 412 413 static int 414 vmexit_hlt(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 415 { 416 417 stats.vmexit_hlt++; 418 419 /* 420 * Just continue execution with the next instruction. We use 421 * the HLT VM exit as a way to be friendly with the host 422 * scheduler. 423 */ 424 return (VMEXIT_CONTINUE); 425 } 426 427 static int 428 vmexit_pause(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 429 { 430 431 stats.vmexit_pause++; 432 433 return (VMEXIT_CONTINUE); 434 } 435 436 static int 437 vmexit_mtrap(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 438 { 439 440 stats.vmexit_mtrap++; 441 442 return (VMEXIT_RESTART); 443 } 444 445 static int 446 vmexit_inst_emul(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 447 { 448 int err; 449 stats.vmexit_inst_emul++; 450 451 err = emulate_mem(ctx, *pvcpu, vmexit->u.inst_emul.gpa, 452 &vmexit->u.inst_emul.vie); 453 454 if (err) { 455 if (err == EINVAL) { 456 fprintf(stderr, 457 "Failed to emulate instruction at 0x%lx\n", 458 vmexit->rip); 459 } else if (err == ESRCH) { 460 fprintf(stderr, "Unhandled memory access to 0x%lx\n", 461 vmexit->u.inst_emul.gpa); 462 } 463 464 return (VMEXIT_ABORT); 465 } 466 467 return (VMEXIT_CONTINUE); 468 } 469 470 static vmexit_handler_t handler[VM_EXITCODE_MAX] = { 471 [VM_EXITCODE_INOUT] = vmexit_inout, 472 [VM_EXITCODE_VMX] = vmexit_vmx, 473 [VM_EXITCODE_BOGUS] = vmexit_bogus, 474 [VM_EXITCODE_RDMSR] = vmexit_rdmsr, 475 [VM_EXITCODE_WRMSR] = vmexit_wrmsr, 476 [VM_EXITCODE_MTRAP] = vmexit_mtrap, 477 [VM_EXITCODE_INST_EMUL] = vmexit_inst_emul, 478 [VM_EXITCODE_SPINUP_AP] = vmexit_spinup_ap, 479 [VM_EXITCODE_SPINDOWN_CPU] = vmexit_spindown_cpu, 480 }; 481 482 static void 483 vm_loop(struct vmctx *ctx, int vcpu, uint64_t rip) 484 { 485 cpuset_t mask; 486 int error, rc, prevcpu; 487 enum vm_exitcode exitcode; 488 489 if (pincpu >= 0) { 490 CPU_ZERO(&mask); 491 CPU_SET(pincpu + vcpu, &mask); 492 error = pthread_setaffinity_np(pthread_self(), 493 sizeof(mask), &mask); 494 assert(error == 0); 495 } 496 497 while (1) { 498 error = vm_run(ctx, vcpu, rip, &vmexit[vcpu]); 499 if (error != 0) 500 break; 501 502 prevcpu = vcpu; 503 504 exitcode = vmexit[vcpu].exitcode; 505 if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) { 506 fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n", 507 exitcode); 508 exit(1); 509 } 510 511 rc = (*handler[exitcode])(ctx, &vmexit[vcpu], &vcpu); 512 513 switch (rc) { 514 case VMEXIT_CONTINUE: 515 rip = vmexit[vcpu].rip + vmexit[vcpu].inst_length; 516 break; 517 case VMEXIT_RESTART: 518 rip = vmexit[vcpu].rip; 519 break; 520 case VMEXIT_RESET: 521 exit(0); 522 default: 523 exit(1); 524 } 525 } 526 fprintf(stderr, "vm_run error %d, errno %d\n", error, errno); 527 } 528 529 static int 530 num_vcpus_allowed(struct vmctx *ctx) 531 { 532 int tmp, error; 533 534 error = vm_get_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, &tmp); 535 536 /* 537 * The guest is allowed to spinup more than one processor only if the 538 * UNRESTRICTED_GUEST capability is available. 539 */ 540 if (error == 0) 541 return (VM_MAXCPU); 542 else 543 return (1); 544 } 545 546 void 547 fbsdrun_set_capabilities(struct vmctx *ctx, int cpu) 548 { 549 int err, tmp; 550 551 if (fbsdrun_vmexit_on_hlt()) { 552 err = vm_get_capability(ctx, cpu, VM_CAP_HALT_EXIT, &tmp); 553 if (err < 0) { 554 fprintf(stderr, "VM exit on HLT not supported\n"); 555 exit(1); 556 } 557 vm_set_capability(ctx, cpu, VM_CAP_HALT_EXIT, 1); 558 if (cpu == BSP) 559 handler[VM_EXITCODE_HLT] = vmexit_hlt; 560 } 561 562 if (fbsdrun_vmexit_on_pause()) { 563 /* 564 * pause exit support required for this mode 565 */ 566 err = vm_get_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, &tmp); 567 if (err < 0) { 568 fprintf(stderr, 569 "SMP mux requested, no pause support\n"); 570 exit(1); 571 } 572 vm_set_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, 1); 573 if (cpu == BSP) 574 handler[VM_EXITCODE_PAUSE] = vmexit_pause; 575 } 576 577 if (x2apic_mode) 578 err = vm_set_x2apic_state(ctx, cpu, X2APIC_ENABLED); 579 else 580 err = vm_set_x2apic_state(ctx, cpu, X2APIC_DISABLED); 581 582 if (err) { 583 fprintf(stderr, "Unable to set x2apic state (%d)\n", err); 584 exit(1); 585 } 586 587 vm_set_capability(ctx, cpu, VM_CAP_ENABLE_INVPCID, 1); 588 } 589 590 int 591 main(int argc, char *argv[]) 592 { 593 int c, error, gdb_port, err, bvmcons; 594 int max_vcpus; 595 struct vmctx *ctx; 596 uint64_t rip; 597 size_t memsize; 598 599 bvmcons = 0; 600 progname = basename(argv[0]); 601 gdb_port = 0; 602 guest_ncpus = 1; 603 memsize = 256 * MB; 604 605 while ((c = getopt(argc, argv, "abehwxAHIPWp:g:c:s:m:l:U:")) != -1) { 606 switch (c) { 607 case 'a': 608 x2apic_mode = 0; 609 break; 610 case 'A': 611 acpi = 1; 612 break; 613 case 'b': 614 bvmcons = 1; 615 break; 616 case 'p': 617 pincpu = atoi(optarg); 618 break; 619 case 'c': 620 guest_ncpus = atoi(optarg); 621 break; 622 case 'g': 623 gdb_port = atoi(optarg); 624 break; 625 case 'l': 626 if (lpc_device_parse(optarg) != 0) { 627 errx(EX_USAGE, "invalid lpc device " 628 "configuration '%s'", optarg); 629 } 630 break; 631 case 's': 632 if (pci_parse_slot(optarg) != 0) 633 exit(1); 634 else 635 break; 636 case 'm': 637 error = vm_parse_memsize(optarg, &memsize); 638 if (error) 639 errx(EX_USAGE, "invalid memsize '%s'", optarg); 640 break; 641 case 'H': 642 guest_vmexit_on_hlt = 1; 643 break; 644 case 'I': 645 /* 646 * The "-I" option was used to add an ioapic to the 647 * virtual machine. 648 * 649 * An ioapic is now provided unconditionally for each 650 * virtual machine and this option is now deprecated. 651 */ 652 break; 653 case 'P': 654 guest_vmexit_on_pause = 1; 655 break; 656 case 'e': 657 strictio = 1; 658 break; 659 case 'U': 660 guest_uuid_str = optarg; 661 break; 662 case 'w': 663 strictmsr = 0; 664 break; 665 case 'W': 666 virtio_msix = 0; 667 break; 668 case 'x': 669 x2apic_mode = 1; 670 break; 671 case 'h': 672 usage(0); 673 default: 674 usage(1); 675 } 676 } 677 argc -= optind; 678 argv += optind; 679 680 if (argc != 1) 681 usage(1); 682 683 vmname = argv[0]; 684 685 ctx = vm_open(vmname); 686 if (ctx == NULL) { 687 perror("vm_open"); 688 exit(1); 689 } 690 691 max_vcpus = num_vcpus_allowed(ctx); 692 if (guest_ncpus > max_vcpus) { 693 fprintf(stderr, "%d vCPUs requested but only %d available\n", 694 guest_ncpus, max_vcpus); 695 exit(1); 696 } 697 698 fbsdrun_set_capabilities(ctx, BSP); 699 700 err = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 701 if (err) { 702 fprintf(stderr, "Unable to setup memory (%d)\n", err); 703 exit(1); 704 } 705 706 init_mem(); 707 init_inout(); 708 ioapic_init(ctx); 709 710 rtc_init(ctx); 711 712 /* 713 * Exit if a device emulation finds an error in it's initilization 714 */ 715 if (init_pci(ctx) != 0) 716 exit(1); 717 718 if (gdb_port != 0) 719 init_dbgport(gdb_port); 720 721 if (bvmcons) 722 init_bvmcons(); 723 724 error = vm_get_register(ctx, BSP, VM_REG_GUEST_RIP, &rip); 725 assert(error == 0); 726 727 /* 728 * build the guest tables, MP etc. 729 */ 730 mptable_build(ctx, guest_ncpus); 731 732 error = smbios_build(ctx); 733 assert(error == 0); 734 735 if (acpi) { 736 error = acpi_build(ctx, guest_ncpus); 737 assert(error == 0); 738 } 739 740 /* 741 * Change the proc title to include the VM name. 742 */ 743 setproctitle("%s", vmname); 744 745 /* 746 * Add CPU 0 747 */ 748 fbsdrun_addcpu(ctx, BSP, rip); 749 750 /* 751 * Head off to the main event dispatch loop 752 */ 753 mevent_dispatch(); 754 755 exit(1); 756 } 757