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_irq.h" 64 #include "pci_lpc.h" 65 #include "smbiostbl.h" 66 #include "xmsr.h" 67 #include "spinup_ap.h" 68 #include "rtc.h" 69 70 #define GUEST_NIO_PORT 0x488 /* guest upcalls via i/o port */ 71 72 #define MB (1024UL * 1024) 73 #define GB (1024UL * MB) 74 75 typedef int (*vmexit_handler_t)(struct vmctx *, struct vm_exit *, int *vcpu); 76 extern int vmexit_task_switch(struct vmctx *, struct vm_exit *, int *vcpu); 77 78 char *vmname; 79 80 int guest_ncpus; 81 char *guest_uuid_str; 82 83 static int guest_vmexit_on_hlt, guest_vmexit_on_pause; 84 static int virtio_msix = 1; 85 static int x2apic_mode = 0; /* default is xAPIC */ 86 87 static int strictio; 88 static int strictmsr = 1; 89 90 static int acpi; 91 92 static char *progname; 93 static const int BSP = 0; 94 95 static cpuset_t cpumask; 96 97 static void vm_loop(struct vmctx *ctx, int vcpu, uint64_t rip); 98 99 static struct vm_exit vmexit[VM_MAXCPU]; 100 101 struct bhyvestats { 102 uint64_t vmexit_bogus; 103 uint64_t vmexit_bogus_switch; 104 uint64_t vmexit_hlt; 105 uint64_t vmexit_pause; 106 uint64_t vmexit_mtrap; 107 uint64_t vmexit_inst_emul; 108 uint64_t cpu_switch_rotate; 109 uint64_t cpu_switch_direct; 110 } stats; 111 112 struct mt_vmm_info { 113 pthread_t mt_thr; 114 struct vmctx *mt_ctx; 115 int mt_vcpu; 116 } mt_vmm_info[VM_MAXCPU]; 117 118 static cpuset_t *vcpumap[VM_MAXCPU] = { NULL }; 119 120 static void 121 usage(int code) 122 { 123 124 fprintf(stderr, 125 "Usage: %s [-abehwxACHPWY] [-c vcpus] [-g <gdb port>] [-l <lpc>]\n" 126 " %*s [-m mem] [-p vcpu:hostcpu] [-s <pci>] [-U uuid] <vm>\n" 127 " -a: local apic is in xAPIC mode (deprecated)\n" 128 " -A: create ACPI tables\n" 129 " -c: # cpus (default 1)\n" 130 " -C: include guest memory in core file\n" 131 " -e: exit on unhandled I/O access\n" 132 " -g: gdb port\n" 133 " -h: help\n" 134 " -H: vmexit from the guest on hlt\n" 135 " -l: LPC device configuration\n" 136 " -m: memory size in MB\n" 137 " -p: pin 'vcpu' to 'hostcpu'\n" 138 " -P: vmexit from the guest on pause\n" 139 " -s: <slot,driver,configinfo> PCI slot config\n" 140 " -U: uuid\n" 141 " -w: ignore unimplemented MSRs\n" 142 " -W: force virtio to use single-vector MSI\n" 143 " -x: local apic is in x2APIC mode\n" 144 " -Y: disable MPtable generation\n", 145 progname, (int)strlen(progname), ""); 146 147 exit(code); 148 } 149 150 static int 151 pincpu_parse(const char *opt) 152 { 153 int vcpu, pcpu; 154 155 if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) { 156 fprintf(stderr, "invalid format: %s\n", opt); 157 return (-1); 158 } 159 160 if (vcpu < 0 || vcpu >= VM_MAXCPU) { 161 fprintf(stderr, "vcpu '%d' outside valid range from 0 to %d\n", 162 vcpu, VM_MAXCPU - 1); 163 return (-1); 164 } 165 166 if (pcpu < 0 || pcpu >= CPU_SETSIZE) { 167 fprintf(stderr, "hostcpu '%d' outside valid range from " 168 "0 to %d\n", pcpu, CPU_SETSIZE - 1); 169 return (-1); 170 } 171 172 if (vcpumap[vcpu] == NULL) { 173 if ((vcpumap[vcpu] = malloc(sizeof(cpuset_t))) == NULL) { 174 perror("malloc"); 175 return (-1); 176 } 177 CPU_ZERO(vcpumap[vcpu]); 178 } 179 CPU_SET(pcpu, vcpumap[vcpu]); 180 return (0); 181 } 182 183 void 184 vm_inject_fault(void *arg, int vcpu, int vector, int errcode_valid, 185 int errcode) 186 { 187 struct vmctx *ctx; 188 int error, restart_instruction; 189 190 ctx = arg; 191 restart_instruction = 1; 192 193 error = vm_inject_exception(ctx, vcpu, vector, errcode_valid, errcode, 194 restart_instruction); 195 assert(error == 0); 196 } 197 198 void * 199 paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len) 200 { 201 202 return (vm_map_gpa(ctx, gaddr, len)); 203 } 204 205 int 206 fbsdrun_vmexit_on_pause(void) 207 { 208 209 return (guest_vmexit_on_pause); 210 } 211 212 int 213 fbsdrun_vmexit_on_hlt(void) 214 { 215 216 return (guest_vmexit_on_hlt); 217 } 218 219 int 220 fbsdrun_virtio_msix(void) 221 { 222 223 return (virtio_msix); 224 } 225 226 static void * 227 fbsdrun_start_thread(void *param) 228 { 229 char tname[MAXCOMLEN + 1]; 230 struct mt_vmm_info *mtp; 231 int vcpu; 232 233 mtp = param; 234 vcpu = mtp->mt_vcpu; 235 236 snprintf(tname, sizeof(tname), "vcpu %d", vcpu); 237 pthread_set_name_np(mtp->mt_thr, tname); 238 239 vm_loop(mtp->mt_ctx, vcpu, vmexit[vcpu].rip); 240 241 /* not reached */ 242 exit(1); 243 return (NULL); 244 } 245 246 void 247 fbsdrun_addcpu(struct vmctx *ctx, int fromcpu, int newcpu, uint64_t rip) 248 { 249 int error; 250 251 assert(fromcpu == BSP); 252 253 /* 254 * The 'newcpu' must be activated in the context of 'fromcpu'. If 255 * vm_activate_cpu() is delayed until newcpu's pthread starts running 256 * then vmm.ko is out-of-sync with bhyve and this can create a race 257 * with vm_suspend(). 258 */ 259 error = vm_activate_cpu(ctx, newcpu); 260 assert(error == 0); 261 262 CPU_SET_ATOMIC(newcpu, &cpumask); 263 264 /* 265 * Set up the vmexit struct to allow execution to start 266 * at the given RIP 267 */ 268 vmexit[newcpu].rip = rip; 269 vmexit[newcpu].inst_length = 0; 270 271 mt_vmm_info[newcpu].mt_ctx = ctx; 272 mt_vmm_info[newcpu].mt_vcpu = newcpu; 273 274 error = pthread_create(&mt_vmm_info[newcpu].mt_thr, NULL, 275 fbsdrun_start_thread, &mt_vmm_info[newcpu]); 276 assert(error == 0); 277 } 278 279 static int 280 fbsdrun_deletecpu(struct vmctx *ctx, int vcpu) 281 { 282 283 if (!CPU_ISSET(vcpu, &cpumask)) { 284 fprintf(stderr, "Attempting to delete unknown cpu %d\n", vcpu); 285 exit(1); 286 } 287 288 CPU_CLR_ATOMIC(vcpu, &cpumask); 289 return (CPU_EMPTY(&cpumask)); 290 } 291 292 static int 293 vmexit_handle_notify(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu, 294 uint32_t eax) 295 { 296 #if BHYVE_DEBUG 297 /* 298 * put guest-driven debug here 299 */ 300 #endif 301 return (VMEXIT_CONTINUE); 302 } 303 304 static int 305 vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 306 { 307 int error; 308 int bytes, port, in, out, string; 309 int vcpu; 310 311 vcpu = *pvcpu; 312 313 port = vme->u.inout.port; 314 bytes = vme->u.inout.bytes; 315 string = vme->u.inout.string; 316 in = vme->u.inout.in; 317 out = !in; 318 319 /* Extra-special case of host notifications */ 320 if (out && port == GUEST_NIO_PORT) { 321 error = vmexit_handle_notify(ctx, vme, pvcpu, vme->u.inout.eax); 322 return (error); 323 } 324 325 error = emulate_inout(ctx, vcpu, vme, strictio); 326 if (error) { 327 fprintf(stderr, "Unhandled %s%c 0x%04x\n", in ? "in" : "out", 328 bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), port); 329 return (VMEXIT_ABORT); 330 } else { 331 return (VMEXIT_CONTINUE); 332 } 333 } 334 335 static int 336 vmexit_rdmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 337 { 338 uint64_t val; 339 uint32_t eax, edx; 340 int error; 341 342 val = 0; 343 error = emulate_rdmsr(ctx, *pvcpu, vme->u.msr.code, &val); 344 if (error != 0) { 345 fprintf(stderr, "rdmsr to register %#x on vcpu %d\n", 346 vme->u.msr.code, *pvcpu); 347 if (strictmsr) { 348 vm_inject_gp(ctx, *pvcpu); 349 return (VMEXIT_CONTINUE); 350 } 351 } 352 353 eax = val; 354 error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RAX, eax); 355 assert(error == 0); 356 357 edx = val >> 32; 358 error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RDX, edx); 359 assert(error == 0); 360 361 return (VMEXIT_CONTINUE); 362 } 363 364 static int 365 vmexit_wrmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 366 { 367 int error; 368 369 error = emulate_wrmsr(ctx, *pvcpu, vme->u.msr.code, vme->u.msr.wval); 370 if (error != 0) { 371 fprintf(stderr, "wrmsr to register %#x(%#lx) on vcpu %d\n", 372 vme->u.msr.code, vme->u.msr.wval, *pvcpu); 373 if (strictmsr) { 374 vm_inject_gp(ctx, *pvcpu); 375 return (VMEXIT_CONTINUE); 376 } 377 } 378 return (VMEXIT_CONTINUE); 379 } 380 381 static int 382 vmexit_spinup_ap(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 383 { 384 int newcpu; 385 int retval = VMEXIT_CONTINUE; 386 387 newcpu = spinup_ap(ctx, *pvcpu, 388 vme->u.spinup_ap.vcpu, vme->u.spinup_ap.rip); 389 390 return (retval); 391 } 392 393 #define DEBUG_EPT_MISCONFIG 394 #ifdef DEBUG_EPT_MISCONFIG 395 #define EXIT_REASON_EPT_MISCONFIG 49 396 #define VMCS_GUEST_PHYSICAL_ADDRESS 0x00002400 397 #define VMCS_IDENT(x) ((x) | 0x80000000) 398 399 static uint64_t ept_misconfig_gpa, ept_misconfig_pte[4]; 400 static int ept_misconfig_ptenum; 401 #endif 402 403 static int 404 vmexit_vmx(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 405 { 406 407 fprintf(stderr, "vm exit[%d]\n", *pvcpu); 408 fprintf(stderr, "\treason\t\tVMX\n"); 409 fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip); 410 fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length); 411 fprintf(stderr, "\tstatus\t\t%d\n", vmexit->u.vmx.status); 412 fprintf(stderr, "\texit_reason\t%u\n", vmexit->u.vmx.exit_reason); 413 fprintf(stderr, "\tqualification\t0x%016lx\n", 414 vmexit->u.vmx.exit_qualification); 415 fprintf(stderr, "\tinst_type\t\t%d\n", vmexit->u.vmx.inst_type); 416 fprintf(stderr, "\tinst_error\t\t%d\n", vmexit->u.vmx.inst_error); 417 #ifdef DEBUG_EPT_MISCONFIG 418 if (vmexit->u.vmx.exit_reason == EXIT_REASON_EPT_MISCONFIG) { 419 vm_get_register(ctx, *pvcpu, 420 VMCS_IDENT(VMCS_GUEST_PHYSICAL_ADDRESS), 421 &ept_misconfig_gpa); 422 vm_get_gpa_pmap(ctx, ept_misconfig_gpa, ept_misconfig_pte, 423 &ept_misconfig_ptenum); 424 fprintf(stderr, "\tEPT misconfiguration:\n"); 425 fprintf(stderr, "\t\tGPA: %#lx\n", ept_misconfig_gpa); 426 fprintf(stderr, "\t\tPTE(%d): %#lx %#lx %#lx %#lx\n", 427 ept_misconfig_ptenum, ept_misconfig_pte[0], 428 ept_misconfig_pte[1], ept_misconfig_pte[2], 429 ept_misconfig_pte[3]); 430 } 431 #endif /* DEBUG_EPT_MISCONFIG */ 432 return (VMEXIT_ABORT); 433 } 434 435 static int 436 vmexit_svm(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 437 { 438 439 fprintf(stderr, "vm exit[%d]\n", *pvcpu); 440 fprintf(stderr, "\treason\t\tSVM\n"); 441 fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip); 442 fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length); 443 fprintf(stderr, "\texitcode\t%#lx\n", vmexit->u.svm.exitcode); 444 fprintf(stderr, "\texitinfo1\t%#lx\n", vmexit->u.svm.exitinfo1); 445 fprintf(stderr, "\texitinfo2\t%#lx\n", vmexit->u.svm.exitinfo2); 446 return (VMEXIT_ABORT); 447 } 448 449 static int 450 vmexit_bogus(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 451 { 452 453 assert(vmexit->inst_length == 0); 454 455 stats.vmexit_bogus++; 456 457 return (VMEXIT_CONTINUE); 458 } 459 460 static int 461 vmexit_hlt(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 462 { 463 464 stats.vmexit_hlt++; 465 466 /* 467 * Just continue execution with the next instruction. We use 468 * the HLT VM exit as a way to be friendly with the host 469 * scheduler. 470 */ 471 return (VMEXIT_CONTINUE); 472 } 473 474 static int 475 vmexit_pause(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 476 { 477 478 stats.vmexit_pause++; 479 480 return (VMEXIT_CONTINUE); 481 } 482 483 static int 484 vmexit_mtrap(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 485 { 486 487 assert(vmexit->inst_length == 0); 488 489 stats.vmexit_mtrap++; 490 491 return (VMEXIT_CONTINUE); 492 } 493 494 static int 495 vmexit_inst_emul(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 496 { 497 int err; 498 stats.vmexit_inst_emul++; 499 500 err = emulate_mem(ctx, *pvcpu, vmexit->u.inst_emul.gpa, 501 &vmexit->u.inst_emul.vie, &vmexit->u.inst_emul.paging); 502 503 if (err) { 504 if (err == EINVAL) { 505 fprintf(stderr, 506 "Failed to emulate instruction at 0x%lx\n", 507 vmexit->rip); 508 } else if (err == ESRCH) { 509 fprintf(stderr, "Unhandled memory access to 0x%lx\n", 510 vmexit->u.inst_emul.gpa); 511 } 512 513 return (VMEXIT_ABORT); 514 } 515 516 return (VMEXIT_CONTINUE); 517 } 518 519 static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER; 520 static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER; 521 522 static int 523 vmexit_suspend(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 524 { 525 enum vm_suspend_how how; 526 527 how = vmexit->u.suspended.how; 528 529 fbsdrun_deletecpu(ctx, *pvcpu); 530 531 if (*pvcpu != BSP) { 532 pthread_mutex_lock(&resetcpu_mtx); 533 pthread_cond_signal(&resetcpu_cond); 534 pthread_mutex_unlock(&resetcpu_mtx); 535 pthread_exit(NULL); 536 } 537 538 pthread_mutex_lock(&resetcpu_mtx); 539 while (!CPU_EMPTY(&cpumask)) { 540 pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx); 541 } 542 pthread_mutex_unlock(&resetcpu_mtx); 543 544 switch (how) { 545 case VM_SUSPEND_RESET: 546 exit(0); 547 case VM_SUSPEND_POWEROFF: 548 exit(1); 549 case VM_SUSPEND_HALT: 550 exit(2); 551 case VM_SUSPEND_TRIPLEFAULT: 552 exit(3); 553 default: 554 fprintf(stderr, "vmexit_suspend: invalid reason %d\n", how); 555 exit(100); 556 } 557 return (0); /* NOTREACHED */ 558 } 559 560 static vmexit_handler_t handler[VM_EXITCODE_MAX] = { 561 [VM_EXITCODE_INOUT] = vmexit_inout, 562 [VM_EXITCODE_INOUT_STR] = vmexit_inout, 563 [VM_EXITCODE_VMX] = vmexit_vmx, 564 [VM_EXITCODE_SVM] = vmexit_svm, 565 [VM_EXITCODE_BOGUS] = vmexit_bogus, 566 [VM_EXITCODE_RDMSR] = vmexit_rdmsr, 567 [VM_EXITCODE_WRMSR] = vmexit_wrmsr, 568 [VM_EXITCODE_MTRAP] = vmexit_mtrap, 569 [VM_EXITCODE_INST_EMUL] = vmexit_inst_emul, 570 [VM_EXITCODE_SPINUP_AP] = vmexit_spinup_ap, 571 [VM_EXITCODE_SUSPENDED] = vmexit_suspend, 572 [VM_EXITCODE_TASK_SWITCH] = vmexit_task_switch, 573 }; 574 575 static void 576 vm_loop(struct vmctx *ctx, int vcpu, uint64_t startrip) 577 { 578 int error, rc, prevcpu; 579 enum vm_exitcode exitcode; 580 cpuset_t active_cpus; 581 582 if (vcpumap[vcpu] != NULL) { 583 error = pthread_setaffinity_np(pthread_self(), 584 sizeof(cpuset_t), vcpumap[vcpu]); 585 assert(error == 0); 586 } 587 588 error = vm_active_cpus(ctx, &active_cpus); 589 assert(CPU_ISSET(vcpu, &active_cpus)); 590 591 error = vm_set_register(ctx, vcpu, VM_REG_GUEST_RIP, startrip); 592 assert(error == 0); 593 594 while (1) { 595 error = vm_run(ctx, vcpu, &vmexit[vcpu]); 596 if (error != 0) 597 break; 598 599 prevcpu = vcpu; 600 601 exitcode = vmexit[vcpu].exitcode; 602 if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) { 603 fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n", 604 exitcode); 605 exit(1); 606 } 607 608 rc = (*handler[exitcode])(ctx, &vmexit[vcpu], &vcpu); 609 610 switch (rc) { 611 case VMEXIT_CONTINUE: 612 break; 613 case VMEXIT_ABORT: 614 abort(); 615 default: 616 exit(1); 617 } 618 } 619 fprintf(stderr, "vm_run error %d, errno %d\n", error, errno); 620 } 621 622 static int 623 num_vcpus_allowed(struct vmctx *ctx) 624 { 625 int tmp, error; 626 627 error = vm_get_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, &tmp); 628 629 /* 630 * The guest is allowed to spinup more than one processor only if the 631 * UNRESTRICTED_GUEST capability is available. 632 */ 633 if (error == 0) 634 return (VM_MAXCPU); 635 else 636 return (1); 637 } 638 639 void 640 fbsdrun_set_capabilities(struct vmctx *ctx, int cpu) 641 { 642 int err, tmp; 643 644 if (fbsdrun_vmexit_on_hlt()) { 645 err = vm_get_capability(ctx, cpu, VM_CAP_HALT_EXIT, &tmp); 646 if (err < 0) { 647 fprintf(stderr, "VM exit on HLT not supported\n"); 648 exit(1); 649 } 650 vm_set_capability(ctx, cpu, VM_CAP_HALT_EXIT, 1); 651 if (cpu == BSP) 652 handler[VM_EXITCODE_HLT] = vmexit_hlt; 653 } 654 655 if (fbsdrun_vmexit_on_pause()) { 656 /* 657 * pause exit support required for this mode 658 */ 659 err = vm_get_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, &tmp); 660 if (err < 0) { 661 fprintf(stderr, 662 "SMP mux requested, no pause support\n"); 663 exit(1); 664 } 665 vm_set_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, 1); 666 if (cpu == BSP) 667 handler[VM_EXITCODE_PAUSE] = vmexit_pause; 668 } 669 670 if (x2apic_mode) 671 err = vm_set_x2apic_state(ctx, cpu, X2APIC_ENABLED); 672 else 673 err = vm_set_x2apic_state(ctx, cpu, X2APIC_DISABLED); 674 675 if (err) { 676 fprintf(stderr, "Unable to set x2apic state (%d)\n", err); 677 exit(1); 678 } 679 680 vm_set_capability(ctx, cpu, VM_CAP_ENABLE_INVPCID, 1); 681 } 682 683 int 684 main(int argc, char *argv[]) 685 { 686 int c, error, gdb_port, err, bvmcons; 687 int dump_guest_memory, max_vcpus, mptgen; 688 struct vmctx *ctx; 689 uint64_t rip; 690 size_t memsize; 691 692 bvmcons = 0; 693 dump_guest_memory = 0; 694 progname = basename(argv[0]); 695 gdb_port = 0; 696 guest_ncpus = 1; 697 memsize = 256 * MB; 698 mptgen = 1; 699 700 while ((c = getopt(argc, argv, "abehwxACHIPWYp:g:c:s:m:l:U:")) != -1) { 701 switch (c) { 702 case 'a': 703 x2apic_mode = 0; 704 break; 705 case 'A': 706 acpi = 1; 707 break; 708 case 'b': 709 bvmcons = 1; 710 break; 711 case 'p': 712 if (pincpu_parse(optarg) != 0) { 713 errx(EX_USAGE, "invalid vcpu pinning " 714 "configuration '%s'", optarg); 715 } 716 break; 717 case 'c': 718 guest_ncpus = atoi(optarg); 719 break; 720 case 'C': 721 dump_guest_memory = 1; 722 break; 723 case 'g': 724 gdb_port = atoi(optarg); 725 break; 726 case 'l': 727 if (lpc_device_parse(optarg) != 0) { 728 errx(EX_USAGE, "invalid lpc device " 729 "configuration '%s'", optarg); 730 } 731 break; 732 case 's': 733 if (pci_parse_slot(optarg) != 0) 734 exit(1); 735 else 736 break; 737 case 'm': 738 error = vm_parse_memsize(optarg, &memsize); 739 if (error) 740 errx(EX_USAGE, "invalid memsize '%s'", optarg); 741 break; 742 case 'H': 743 guest_vmexit_on_hlt = 1; 744 break; 745 case 'I': 746 /* 747 * The "-I" option was used to add an ioapic to the 748 * virtual machine. 749 * 750 * An ioapic is now provided unconditionally for each 751 * virtual machine and this option is now deprecated. 752 */ 753 break; 754 case 'P': 755 guest_vmexit_on_pause = 1; 756 break; 757 case 'e': 758 strictio = 1; 759 break; 760 case 'U': 761 guest_uuid_str = optarg; 762 break; 763 case 'w': 764 strictmsr = 0; 765 break; 766 case 'W': 767 virtio_msix = 0; 768 break; 769 case 'x': 770 x2apic_mode = 1; 771 break; 772 case 'Y': 773 mptgen = 0; 774 break; 775 case 'h': 776 usage(0); 777 default: 778 usage(1); 779 } 780 } 781 argc -= optind; 782 argv += optind; 783 784 if (argc != 1) 785 usage(1); 786 787 vmname = argv[0]; 788 789 ctx = vm_open(vmname); 790 if (ctx == NULL) { 791 perror("vm_open"); 792 exit(1); 793 } 794 795 max_vcpus = num_vcpus_allowed(ctx); 796 if (guest_ncpus > max_vcpus) { 797 fprintf(stderr, "%d vCPUs requested but only %d available\n", 798 guest_ncpus, max_vcpus); 799 exit(1); 800 } 801 802 fbsdrun_set_capabilities(ctx, BSP); 803 804 if (dump_guest_memory) 805 vm_set_memflags(ctx, VM_MEM_F_INCORE); 806 err = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 807 if (err) { 808 fprintf(stderr, "Unable to setup memory (%d)\n", err); 809 exit(1); 810 } 811 812 error = init_msr(); 813 if (error) { 814 fprintf(stderr, "init_msr error %d", error); 815 exit(1); 816 } 817 818 init_mem(); 819 init_inout(); 820 pci_irq_init(ctx); 821 ioapic_init(ctx); 822 823 rtc_init(ctx); 824 sci_init(ctx); 825 826 /* 827 * Exit if a device emulation finds an error in it's initilization 828 */ 829 if (init_pci(ctx) != 0) 830 exit(1); 831 832 if (gdb_port != 0) 833 init_dbgport(gdb_port); 834 835 if (bvmcons) 836 init_bvmcons(); 837 838 error = vm_get_register(ctx, BSP, VM_REG_GUEST_RIP, &rip); 839 assert(error == 0); 840 841 /* 842 * build the guest tables, MP etc. 843 */ 844 if (mptgen) { 845 error = mptable_build(ctx, guest_ncpus); 846 if (error) 847 exit(1); 848 } 849 850 error = smbios_build(ctx); 851 assert(error == 0); 852 853 if (acpi) { 854 error = acpi_build(ctx, guest_ncpus); 855 assert(error == 0); 856 } 857 858 /* 859 * Change the proc title to include the VM name. 860 */ 861 setproctitle("%s", vmname); 862 863 /* 864 * Add CPU 0 865 */ 866 fbsdrun_addcpu(ctx, BSP, BSP, rip); 867 868 /* 869 * Head off to the main event dispatch loop 870 */ 871 mevent_dispatch(); 872 873 exit(1); 874 } 875