bhyverun.c revision 268935
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: stable/10/usr.sbin/bhyve/bhyverun.c 268935 2014-07-21 02:39:17Z jhb $ 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: stable/10/usr.sbin/bhyve/bhyverun.c 268935 2014-07-21 02:39:17Z jhb $"); 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 81typedef int (*vmexit_handler_t)(struct vmctx *, struct vm_exit *, int *vcpu); 82 83char *vmname; 84 85int guest_ncpus; 86char *guest_uuid_str; 87 88static int guest_vmexit_on_hlt, guest_vmexit_on_pause; 89static int virtio_msix = 1; 90static int x2apic_mode = 0; /* default is xAPIC */ 91 92static int strictio; 93static int strictmsr = 1; 94 95static int acpi; 96 97static char *progname; 98static const int BSP = 0; 99 100static cpuset_t cpumask; 101 102static void vm_loop(struct vmctx *ctx, int vcpu, uint64_t rip); 103 104struct vm_exit vmexit[VM_MAXCPU]; 105 106struct bhyvestats { 107 uint64_t vmexit_bogus; 108 uint64_t vmexit_bogus_switch; 109 uint64_t vmexit_hlt; 110 uint64_t vmexit_pause; 111 uint64_t vmexit_mtrap; 112 uint64_t vmexit_inst_emul; 113 uint64_t cpu_switch_rotate; 114 uint64_t cpu_switch_direct; 115 int io_reset; 116 int io_poweroff; 117} stats; 118 119struct mt_vmm_info { 120 pthread_t mt_thr; 121 struct vmctx *mt_ctx; 122 int mt_vcpu; 123} mt_vmm_info[VM_MAXCPU]; 124 125static cpuset_t *vcpumap[VM_MAXCPU] = { NULL }; 126 127static void 128usage(int code) 129{ 130 131 fprintf(stderr, 132 "Usage: %s [-aehwAHIPW] [-g <gdb port>] [-s <pci>] [-c vcpus]\n" 133 " %*s [-p vcpu:hostcpu] [-m mem] [-l <lpc>] <vm>\n" 134 " -a: local apic is in xAPIC mode (deprecated)\n" 135 " -A: create an ACPI table\n" 136 " -g: gdb port\n" 137 " -c: # cpus (default 1)\n" 138 " -p: pin 'vcpu' to 'hostcpu'\n" 139 " -H: vmexit from the guest on hlt\n" 140 " -P: vmexit from the guest on pause\n" 141 " -W: force virtio to use single-vector MSI\n" 142 " -e: exit on unhandled I/O access\n" 143 " -h: help\n" 144 " -s: <slot,driver,configinfo> PCI slot config\n" 145 " -l: LPC device configuration\n" 146 " -m: memory size in MB\n" 147 " -w: ignore unimplemented MSRs\n" 148 " -x: local apic is in x2APIC mode\n" 149 " -Y: disable MPtable generation\n" 150 " -U: uuid\n", 151 progname, (int)strlen(progname), ""); 152 153 exit(code); 154} 155 156static int 157pincpu_parse(const char *opt) 158{ 159 int vcpu, pcpu; 160 161 if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) { 162 fprintf(stderr, "invalid format: %s\n", opt); 163 return (-1); 164 } 165 166 if (vcpu < 0 || vcpu >= VM_MAXCPU) { 167 fprintf(stderr, "vcpu '%d' outside valid range from 0 to %d\n", 168 vcpu, VM_MAXCPU - 1); 169 return (-1); 170 } 171 172 if (pcpu < 0 || pcpu >= CPU_SETSIZE) { 173 fprintf(stderr, "hostcpu '%d' outside valid range from " 174 "0 to %d\n", pcpu, CPU_SETSIZE - 1); 175 return (-1); 176 } 177 178 if (vcpumap[vcpu] == NULL) { 179 if ((vcpumap[vcpu] = malloc(sizeof(cpuset_t))) == NULL) { 180 perror("malloc"); 181 return (-1); 182 } 183 CPU_ZERO(vcpumap[vcpu]); 184 } 185 CPU_SET(pcpu, vcpumap[vcpu]); 186 return (0); 187} 188 189void * 190paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len) 191{ 192 193 return (vm_map_gpa(ctx, gaddr, len)); 194} 195 196int 197fbsdrun_vmexit_on_pause(void) 198{ 199 200 return (guest_vmexit_on_pause); 201} 202 203int 204fbsdrun_vmexit_on_hlt(void) 205{ 206 207 return (guest_vmexit_on_hlt); 208} 209 210int 211fbsdrun_virtio_msix(void) 212{ 213 214 return (virtio_msix); 215} 216 217static void * 218fbsdrun_start_thread(void *param) 219{ 220 char tname[MAXCOMLEN + 1]; 221 struct mt_vmm_info *mtp; 222 int vcpu; 223 224 mtp = param; 225 vcpu = mtp->mt_vcpu; 226 227 snprintf(tname, sizeof(tname), "vcpu %d", vcpu); 228 pthread_set_name_np(mtp->mt_thr, tname); 229 230 vm_loop(mtp->mt_ctx, vcpu, vmexit[vcpu].rip); 231 232 /* not reached */ 233 exit(1); 234 return (NULL); 235} 236 237void 238fbsdrun_addcpu(struct vmctx *ctx, int fromcpu, int newcpu, uint64_t rip) 239{ 240 int error; 241 242 assert(fromcpu == BSP); 243 244 CPU_SET_ATOMIC(newcpu, &cpumask); 245 246 /* 247 * Set up the vmexit struct to allow execution to start 248 * at the given RIP 249 */ 250 vmexit[newcpu].rip = rip; 251 vmexit[newcpu].inst_length = 0; 252 253 mt_vmm_info[newcpu].mt_ctx = ctx; 254 mt_vmm_info[newcpu].mt_vcpu = newcpu; 255 256 error = pthread_create(&mt_vmm_info[newcpu].mt_thr, NULL, 257 fbsdrun_start_thread, &mt_vmm_info[newcpu]); 258 assert(error == 0); 259} 260 261static int 262fbsdrun_deletecpu(struct vmctx *ctx, int vcpu) 263{ 264 265 if (!CPU_ISSET(vcpu, &cpumask)) { 266 fprintf(stderr, "Attempting to delete unknown cpu %d\n", vcpu); 267 exit(1); 268 } 269 270 CPU_CLR_ATOMIC(vcpu, &cpumask); 271 return (CPU_EMPTY(&cpumask)); 272} 273 274static int 275vmexit_catch_inout(void) 276{ 277 return (VMEXIT_ABORT); 278} 279 280static int 281vmexit_handle_notify(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu, 282 uint32_t eax) 283{ 284#if BHYVE_DEBUG 285 /* 286 * put guest-driven debug here 287 */ 288#endif 289 return (VMEXIT_CONTINUE); 290} 291 292static int 293vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 294{ 295 int error; 296 int bytes, port, in, out; 297 uint32_t eax; 298 int vcpu; 299 300 vcpu = *pvcpu; 301 302 port = vme->u.inout.port; 303 bytes = vme->u.inout.bytes; 304 eax = vme->u.inout.eax; 305 in = vme->u.inout.in; 306 out = !in; 307 308 /* We don't deal with these */ 309 if (vme->u.inout.string || vme->u.inout.rep) 310 return (VMEXIT_ABORT); 311 312 /* Extra-special case of host notifications */ 313 if (out && port == GUEST_NIO_PORT) 314 return (vmexit_handle_notify(ctx, vme, pvcpu, eax)); 315 316 error = emulate_inout(ctx, vcpu, in, port, bytes, &eax, strictio); 317 if (error == INOUT_OK && in) 318 error = vm_set_register(ctx, vcpu, VM_REG_GUEST_RAX, eax); 319 320 switch (error) { 321 case INOUT_OK: 322 return (VMEXIT_CONTINUE); 323 case INOUT_RESET: 324 stats.io_reset++; 325 return (VMEXIT_RESET); 326 case INOUT_POWEROFF: 327 stats.io_poweroff++; 328 return (VMEXIT_POWEROFF); 329 default: 330 fprintf(stderr, "Unhandled %s%c 0x%04x\n", 331 in ? "in" : "out", 332 bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), port); 333 return (vmexit_catch_inout()); 334 } 335} 336 337static int 338vmexit_rdmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 339{ 340 uint64_t val; 341 uint32_t eax, edx; 342 int error; 343 344 val = 0; 345 error = emulate_rdmsr(ctx, *pvcpu, vme->u.msr.code, &val); 346 if (error != 0) { 347 fprintf(stderr, "rdmsr to register %#x on vcpu %d\n", 348 vme->u.msr.code, *pvcpu); 349 if (strictmsr) { 350 error = vm_inject_exception2(ctx, *pvcpu, IDT_GP, 0); 351 assert(error == 0); 352 return (VMEXIT_RESTART); 353 } 354 } 355 356 eax = val; 357 error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RAX, eax); 358 assert(error == 0); 359 360 edx = val >> 32; 361 error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RDX, edx); 362 assert(error == 0); 363 364 return (VMEXIT_CONTINUE); 365} 366 367static int 368vmexit_wrmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 369{ 370 int error; 371 372 error = emulate_wrmsr(ctx, *pvcpu, vme->u.msr.code, vme->u.msr.wval); 373 if (error != 0) { 374 fprintf(stderr, "wrmsr to register %#x(%#lx) on vcpu %d\n", 375 vme->u.msr.code, vme->u.msr.wval, *pvcpu); 376 if (strictmsr) { 377 error = vm_inject_exception2(ctx, *pvcpu, IDT_GP, 0); 378 assert(error == 0); 379 return (VMEXIT_RESTART); 380 } 381 } 382 return (VMEXIT_CONTINUE); 383} 384 385static int 386vmexit_spinup_ap(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 387{ 388 int newcpu; 389 int retval = VMEXIT_CONTINUE; 390 391 newcpu = spinup_ap(ctx, *pvcpu, 392 vme->u.spinup_ap.vcpu, vme->u.spinup_ap.rip); 393 394 return (retval); 395} 396 397static int 398vmexit_vmx(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 399{ 400 401 fprintf(stderr, "vm exit[%d]\n", *pvcpu); 402 fprintf(stderr, "\treason\t\tVMX\n"); 403 fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip); 404 fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length); 405 fprintf(stderr, "\tstatus\t\t%d\n", vmexit->u.vmx.status); 406 fprintf(stderr, "\texit_reason\t%u\n", vmexit->u.vmx.exit_reason); 407 fprintf(stderr, "\tqualification\t0x%016lx\n", 408 vmexit->u.vmx.exit_qualification); 409 fprintf(stderr, "\tinst_type\t\t%d\n", vmexit->u.vmx.inst_type); 410 fprintf(stderr, "\tinst_error\t\t%d\n", vmexit->u.vmx.inst_error); 411 412 return (VMEXIT_ABORT); 413} 414 415static int 416vmexit_bogus(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 417{ 418 419 stats.vmexit_bogus++; 420 421 return (VMEXIT_RESTART); 422} 423 424static int 425vmexit_hlt(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 426{ 427 428 stats.vmexit_hlt++; 429 430 /* 431 * Just continue execution with the next instruction. We use 432 * the HLT VM exit as a way to be friendly with the host 433 * scheduler. 434 */ 435 return (VMEXIT_CONTINUE); 436} 437 438static int 439vmexit_pause(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 440{ 441 442 stats.vmexit_pause++; 443 444 return (VMEXIT_CONTINUE); 445} 446 447static int 448vmexit_mtrap(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 449{ 450 451 stats.vmexit_mtrap++; 452 453 return (VMEXIT_RESTART); 454} 455 456static int 457vmexit_inst_emul(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 458{ 459 int err; 460 stats.vmexit_inst_emul++; 461 462 err = emulate_mem(ctx, *pvcpu, vmexit->u.inst_emul.gpa, 463 &vmexit->u.inst_emul.vie); 464 465 if (err) { 466 if (err == EINVAL) { 467 fprintf(stderr, 468 "Failed to emulate instruction at 0x%lx\n", 469 vmexit->rip); 470 } else if (err == ESRCH) { 471 fprintf(stderr, "Unhandled memory access to 0x%lx\n", 472 vmexit->u.inst_emul.gpa); 473 } 474 475 return (VMEXIT_ABORT); 476 } 477 478 return (VMEXIT_CONTINUE); 479} 480 481static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER; 482static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER; 483 484static int 485vmexit_suspend(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 486{ 487 enum vm_suspend_how how; 488 489 how = vmexit->u.suspended.how; 490 491 fbsdrun_deletecpu(ctx, *pvcpu); 492 493 if (*pvcpu != BSP) { 494 pthread_mutex_lock(&resetcpu_mtx); 495 pthread_cond_signal(&resetcpu_cond); 496 pthread_mutex_unlock(&resetcpu_mtx); 497 pthread_exit(NULL); 498 } 499 500 pthread_mutex_lock(&resetcpu_mtx); 501 while (!CPU_EMPTY(&cpumask)) { 502 pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx); 503 } 504 pthread_mutex_unlock(&resetcpu_mtx); 505 506 switch (how) { 507 case VM_SUSPEND_RESET: 508 exit(0); 509 case VM_SUSPEND_POWEROFF: 510 exit(1); 511 case VM_SUSPEND_HALT: 512 exit(2); 513 default: 514 fprintf(stderr, "vmexit_suspend: invalid reason %d\n", how); 515 exit(100); 516 } 517 return (0); /* NOTREACHED */ 518} 519 520static vmexit_handler_t handler[VM_EXITCODE_MAX] = { 521 [VM_EXITCODE_INOUT] = vmexit_inout, 522 [VM_EXITCODE_VMX] = vmexit_vmx, 523 [VM_EXITCODE_BOGUS] = vmexit_bogus, 524 [VM_EXITCODE_RDMSR] = vmexit_rdmsr, 525 [VM_EXITCODE_WRMSR] = vmexit_wrmsr, 526 [VM_EXITCODE_MTRAP] = vmexit_mtrap, 527 [VM_EXITCODE_INST_EMUL] = vmexit_inst_emul, 528 [VM_EXITCODE_SPINUP_AP] = vmexit_spinup_ap, 529 [VM_EXITCODE_SUSPENDED] = vmexit_suspend 530}; 531 532static void 533vm_loop(struct vmctx *ctx, int vcpu, uint64_t rip) 534{ 535 int error, rc, prevcpu; 536 enum vm_exitcode exitcode; 537 enum vm_suspend_how how; 538 539 if (vcpumap[vcpu] != NULL) { 540 error = pthread_setaffinity_np(pthread_self(), 541 sizeof(cpuset_t), vcpumap[vcpu]); 542 assert(error == 0); 543 } 544 545 while (1) { 546 error = vm_run(ctx, vcpu, rip, &vmexit[vcpu]); 547 if (error != 0) 548 break; 549 550 prevcpu = vcpu; 551 552 exitcode = vmexit[vcpu].exitcode; 553 if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) { 554 fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n", 555 exitcode); 556 exit(1); 557 } 558 559 rc = (*handler[exitcode])(ctx, &vmexit[vcpu], &vcpu); 560 561 switch (rc) { 562 case VMEXIT_CONTINUE: 563 rip = vmexit[vcpu].rip + vmexit[vcpu].inst_length; 564 break; 565 case VMEXIT_RESTART: 566 rip = vmexit[vcpu].rip; 567 break; 568 case VMEXIT_RESET: 569 case VMEXIT_POWEROFF: 570 if (rc == VMEXIT_RESET) 571 how = VM_SUSPEND_RESET; 572 else 573 how = VM_SUSPEND_POWEROFF; 574 error = vm_suspend(ctx, how); 575 assert(error == 0 || errno == EALREADY); 576 rip = vmexit[vcpu].rip + vmexit[vcpu].inst_length; 577 break; 578 default: 579 exit(1); 580 } 581 } 582 fprintf(stderr, "vm_run error %d, errno %d\n", error, errno); 583} 584 585static int 586num_vcpus_allowed(struct vmctx *ctx) 587{ 588 int tmp, error; 589 590 error = vm_get_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, &tmp); 591 592 /* 593 * The guest is allowed to spinup more than one processor only if the 594 * UNRESTRICTED_GUEST capability is available. 595 */ 596 if (error == 0) 597 return (VM_MAXCPU); 598 else 599 return (1); 600} 601 602void 603fbsdrun_set_capabilities(struct vmctx *ctx, int cpu) 604{ 605 int err, tmp; 606 607 if (fbsdrun_vmexit_on_hlt()) { 608 err = vm_get_capability(ctx, cpu, VM_CAP_HALT_EXIT, &tmp); 609 if (err < 0) { 610 fprintf(stderr, "VM exit on HLT not supported\n"); 611 exit(1); 612 } 613 vm_set_capability(ctx, cpu, VM_CAP_HALT_EXIT, 1); 614 if (cpu == BSP) 615 handler[VM_EXITCODE_HLT] = vmexit_hlt; 616 } 617 618 if (fbsdrun_vmexit_on_pause()) { 619 /* 620 * pause exit support required for this mode 621 */ 622 err = vm_get_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, &tmp); 623 if (err < 0) { 624 fprintf(stderr, 625 "SMP mux requested, no pause support\n"); 626 exit(1); 627 } 628 vm_set_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, 1); 629 if (cpu == BSP) 630 handler[VM_EXITCODE_PAUSE] = vmexit_pause; 631 } 632 633 if (x2apic_mode) 634 err = vm_set_x2apic_state(ctx, cpu, X2APIC_ENABLED); 635 else 636 err = vm_set_x2apic_state(ctx, cpu, X2APIC_DISABLED); 637 638 if (err) { 639 fprintf(stderr, "Unable to set x2apic state (%d)\n", err); 640 exit(1); 641 } 642 643 vm_set_capability(ctx, cpu, VM_CAP_ENABLE_INVPCID, 1); 644} 645 646int 647main(int argc, char *argv[]) 648{ 649 int c, error, gdb_port, err, bvmcons; 650 int max_vcpus, mptgen; 651 struct vmctx *ctx; 652 uint64_t rip; 653 size_t memsize; 654 655 bvmcons = 0; 656 progname = basename(argv[0]); 657 gdb_port = 0; 658 guest_ncpus = 1; 659 memsize = 256 * MB; 660 mptgen = 1; 661 662 while ((c = getopt(argc, argv, "abehwxAHIPWYp:g:c:s:m:l:U:")) != -1) { 663 switch (c) { 664 case 'a': 665 x2apic_mode = 0; 666 break; 667 case 'A': 668 acpi = 1; 669 break; 670 case 'b': 671 bvmcons = 1; 672 break; 673 case 'p': 674 if (pincpu_parse(optarg) != 0) { 675 errx(EX_USAGE, "invalid vcpu pinning " 676 "configuration '%s'", optarg); 677 } 678 break; 679 case 'c': 680 guest_ncpus = atoi(optarg); 681 break; 682 case 'g': 683 gdb_port = atoi(optarg); 684 break; 685 case 'l': 686 if (lpc_device_parse(optarg) != 0) { 687 errx(EX_USAGE, "invalid lpc device " 688 "configuration '%s'", optarg); 689 } 690 break; 691 case 's': 692 if (pci_parse_slot(optarg) != 0) 693 exit(1); 694 else 695 break; 696 case 'm': 697 error = vm_parse_memsize(optarg, &memsize); 698 if (error) 699 errx(EX_USAGE, "invalid memsize '%s'", optarg); 700 break; 701 case 'H': 702 guest_vmexit_on_hlt = 1; 703 break; 704 case 'I': 705 /* 706 * The "-I" option was used to add an ioapic to the 707 * virtual machine. 708 * 709 * An ioapic is now provided unconditionally for each 710 * virtual machine and this option is now deprecated. 711 */ 712 break; 713 case 'P': 714 guest_vmexit_on_pause = 1; 715 break; 716 case 'e': 717 strictio = 1; 718 break; 719 case 'U': 720 guest_uuid_str = optarg; 721 break; 722 case 'w': 723 strictmsr = 0; 724 break; 725 case 'W': 726 virtio_msix = 0; 727 break; 728 case 'x': 729 x2apic_mode = 1; 730 break; 731 case 'Y': 732 mptgen = 0; 733 break; 734 case 'h': 735 usage(0); 736 default: 737 usage(1); 738 } 739 } 740 argc -= optind; 741 argv += optind; 742 743 if (argc != 1) 744 usage(1); 745 746 vmname = argv[0]; 747 748 ctx = vm_open(vmname); 749 if (ctx == NULL) { 750 perror("vm_open"); 751 exit(1); 752 } 753 754 max_vcpus = num_vcpus_allowed(ctx); 755 if (guest_ncpus > max_vcpus) { 756 fprintf(stderr, "%d vCPUs requested but only %d available\n", 757 guest_ncpus, max_vcpus); 758 exit(1); 759 } 760 761 fbsdrun_set_capabilities(ctx, BSP); 762 763 err = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 764 if (err) { 765 fprintf(stderr, "Unable to setup memory (%d)\n", err); 766 exit(1); 767 } 768 769 init_mem(); 770 init_inout(); 771 ioapic_init(ctx); 772 773 rtc_init(ctx); 774 775 /* 776 * Exit if a device emulation finds an error in it's initilization 777 */ 778 if (init_pci(ctx) != 0) 779 exit(1); 780 781 if (gdb_port != 0) 782 init_dbgport(gdb_port); 783 784 if (bvmcons) 785 init_bvmcons(); 786 787 error = vm_get_register(ctx, BSP, VM_REG_GUEST_RIP, &rip); 788 assert(error == 0); 789 790 /* 791 * build the guest tables, MP etc. 792 */ 793 if (mptgen) { 794 error = mptable_build(ctx, guest_ncpus); 795 if (error) 796 exit(1); 797 } 798 799 error = smbios_build(ctx); 800 assert(error == 0); 801 802 if (acpi) { 803 error = acpi_build(ctx, guest_ncpus); 804 assert(error == 0); 805 } 806 807 /* 808 * Change the proc title to include the VM name. 809 */ 810 setproctitle("%s", vmname); 811 812 /* 813 * Add CPU 0 814 */ 815 fbsdrun_addcpu(ctx, BSP, BSP, rip); 816 817 /* 818 * Head off to the main event dispatch loop 819 */ 820 mevent_dispatch(); 821 822 exit(1); 823} 824