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 [-abehuwxACHPWY] [-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: RTC keeps UTC time\n" 141 " -U: uuid\n" 142 " -w: ignore unimplemented MSRs\n" 143 " -W: force virtio to use single-vector MSI\n" 144 " -x: local apic is in x2APIC mode\n" 145 " -Y: disable MPtable generation\n", 146 progname, (int)strlen(progname), ""); 147 148 exit(code); 149 } 150 151 static int 152 pincpu_parse(const char *opt) 153 { 154 int vcpu, pcpu; 155 156 if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) { 157 fprintf(stderr, "invalid format: %s\n", opt); 158 return (-1); 159 } 160 161 if (vcpu < 0 || vcpu >= VM_MAXCPU) { 162 fprintf(stderr, "vcpu '%d' outside valid range from 0 to %d\n", 163 vcpu, VM_MAXCPU - 1); 164 return (-1); 165 } 166 167 if (pcpu < 0 || pcpu >= CPU_SETSIZE) { 168 fprintf(stderr, "hostcpu '%d' outside valid range from " 169 "0 to %d\n", pcpu, CPU_SETSIZE - 1); 170 return (-1); 171 } 172 173 if (vcpumap[vcpu] == NULL) { 174 if ((vcpumap[vcpu] = malloc(sizeof(cpuset_t))) == NULL) { 175 perror("malloc"); 176 return (-1); 177 } 178 CPU_ZERO(vcpumap[vcpu]); 179 } 180 CPU_SET(pcpu, vcpumap[vcpu]); 181 return (0); 182 } 183 184 void 185 vm_inject_fault(void *arg, int vcpu, int vector, int errcode_valid, 186 int errcode) 187 { 188 struct vmctx *ctx; 189 int error, restart_instruction; 190 191 ctx = arg; 192 restart_instruction = 1; 193 194 error = vm_inject_exception(ctx, vcpu, vector, errcode_valid, errcode, 195 restart_instruction); 196 assert(error == 0); 197 } 198 199 void * 200 paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len) 201 { 202 203 return (vm_map_gpa(ctx, gaddr, len)); 204 } 205 206 int 207 fbsdrun_vmexit_on_pause(void) 208 { 209 210 return (guest_vmexit_on_pause); 211 } 212 213 int 214 fbsdrun_vmexit_on_hlt(void) 215 { 216 217 return (guest_vmexit_on_hlt); 218 } 219 220 int 221 fbsdrun_virtio_msix(void) 222 { 223 224 return (virtio_msix); 225 } 226 227 static void * 228 fbsdrun_start_thread(void *param) 229 { 230 char tname[MAXCOMLEN + 1]; 231 struct mt_vmm_info *mtp; 232 int vcpu; 233 234 mtp = param; 235 vcpu = mtp->mt_vcpu; 236 237 snprintf(tname, sizeof(tname), "vcpu %d", vcpu); 238 pthread_set_name_np(mtp->mt_thr, tname); 239 240 vm_loop(mtp->mt_ctx, vcpu, vmexit[vcpu].rip); 241 242 /* not reached */ 243 exit(1); 244 return (NULL); 245 } 246 247 void 248 fbsdrun_addcpu(struct vmctx *ctx, int fromcpu, int newcpu, uint64_t rip) 249 { 250 int error; 251 252 assert(fromcpu == BSP); 253 254 /* 255 * The 'newcpu' must be activated in the context of 'fromcpu'. If 256 * vm_activate_cpu() is delayed until newcpu's pthread starts running 257 * then vmm.ko is out-of-sync with bhyve and this can create a race 258 * with vm_suspend(). 259 */ 260 error = vm_activate_cpu(ctx, newcpu); 261 assert(error == 0); 262 263 CPU_SET_ATOMIC(newcpu, &cpumask); 264 265 /* 266 * Set up the vmexit struct to allow execution to start 267 * at the given RIP 268 */ 269 vmexit[newcpu].rip = rip; 270 vmexit[newcpu].inst_length = 0; 271 272 mt_vmm_info[newcpu].mt_ctx = ctx; 273 mt_vmm_info[newcpu].mt_vcpu = newcpu; 274 275 error = pthread_create(&mt_vmm_info[newcpu].mt_thr, NULL, 276 fbsdrun_start_thread, &mt_vmm_info[newcpu]); 277 assert(error == 0); 278 } 279 280 static int 281 fbsdrun_deletecpu(struct vmctx *ctx, int vcpu) 282 { 283 284 if (!CPU_ISSET(vcpu, &cpumask)) { 285 fprintf(stderr, "Attempting to delete unknown cpu %d\n", vcpu); 286 exit(1); 287 } 288 289 CPU_CLR_ATOMIC(vcpu, &cpumask); 290 return (CPU_EMPTY(&cpumask)); 291 } 292 293 static int 294 vmexit_handle_notify(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu, 295 uint32_t eax) 296 { 297 #if BHYVE_DEBUG 298 /* 299 * put guest-driven debug here 300 */ 301 #endif 302 return (VMEXIT_CONTINUE); 303 } 304 305 static int 306 vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 307 { 308 int error; 309 int bytes, port, in, out, string; 310 int vcpu; 311 312 vcpu = *pvcpu; 313 314 port = vme->u.inout.port; 315 bytes = vme->u.inout.bytes; 316 string = vme->u.inout.string; 317 in = vme->u.inout.in; 318 out = !in; 319 320 /* Extra-special case of host notifications */ 321 if (out && port == GUEST_NIO_PORT) { 322 error = vmexit_handle_notify(ctx, vme, pvcpu, vme->u.inout.eax); 323 return (error); 324 } 325 326 error = emulate_inout(ctx, vcpu, vme, strictio); 327 if (error) { 328 fprintf(stderr, "Unhandled %s%c 0x%04x at 0x%lx\n", 329 in ? "in" : "out", 330 bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), 331 port, vmexit->rip); 332 return (VMEXIT_ABORT); 333 } else { 334 return (VMEXIT_CONTINUE); 335 } 336 } 337 338 static int 339 vmexit_rdmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 340 { 341 uint64_t val; 342 uint32_t eax, edx; 343 int error; 344 345 val = 0; 346 error = emulate_rdmsr(ctx, *pvcpu, vme->u.msr.code, &val); 347 if (error != 0) { 348 fprintf(stderr, "rdmsr to register %#x on vcpu %d\n", 349 vme->u.msr.code, *pvcpu); 350 if (strictmsr) { 351 vm_inject_gp(ctx, *pvcpu); 352 return (VMEXIT_CONTINUE); 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 } 366 367 static int 368 vmexit_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 vm_inject_gp(ctx, *pvcpu); 378 return (VMEXIT_CONTINUE); 379 } 380 } 381 return (VMEXIT_CONTINUE); 382 } 383 384 static int 385 vmexit_spinup_ap(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) 386 { 387 int newcpu; 388 int retval = VMEXIT_CONTINUE; 389 390 newcpu = spinup_ap(ctx, *pvcpu, 391 vme->u.spinup_ap.vcpu, vme->u.spinup_ap.rip); 392 393 return (retval); 394 } 395 396 #define DEBUG_EPT_MISCONFIG 397 #ifdef DEBUG_EPT_MISCONFIG 398 #define EXIT_REASON_EPT_MISCONFIG 49 399 #define VMCS_GUEST_PHYSICAL_ADDRESS 0x00002400 400 #define VMCS_IDENT(x) ((x) | 0x80000000) 401 402 static uint64_t ept_misconfig_gpa, ept_misconfig_pte[4]; 403 static int ept_misconfig_ptenum; 404 #endif 405 406 static int 407 vmexit_vmx(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 408 { 409 410 fprintf(stderr, "vm exit[%d]\n", *pvcpu); 411 fprintf(stderr, "\treason\t\tVMX\n"); 412 fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip); 413 fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length); 414 fprintf(stderr, "\tstatus\t\t%d\n", vmexit->u.vmx.status); 415 fprintf(stderr, "\texit_reason\t%u\n", vmexit->u.vmx.exit_reason); 416 fprintf(stderr, "\tqualification\t0x%016lx\n", 417 vmexit->u.vmx.exit_qualification); 418 fprintf(stderr, "\tinst_type\t\t%d\n", vmexit->u.vmx.inst_type); 419 fprintf(stderr, "\tinst_error\t\t%d\n", vmexit->u.vmx.inst_error); 420 #ifdef DEBUG_EPT_MISCONFIG 421 if (vmexit->u.vmx.exit_reason == EXIT_REASON_EPT_MISCONFIG) { 422 vm_get_register(ctx, *pvcpu, 423 VMCS_IDENT(VMCS_GUEST_PHYSICAL_ADDRESS), 424 &ept_misconfig_gpa); 425 vm_get_gpa_pmap(ctx, ept_misconfig_gpa, ept_misconfig_pte, 426 &ept_misconfig_ptenum); 427 fprintf(stderr, "\tEPT misconfiguration:\n"); 428 fprintf(stderr, "\t\tGPA: %#lx\n", ept_misconfig_gpa); 429 fprintf(stderr, "\t\tPTE(%d): %#lx %#lx %#lx %#lx\n", 430 ept_misconfig_ptenum, ept_misconfig_pte[0], 431 ept_misconfig_pte[1], ept_misconfig_pte[2], 432 ept_misconfig_pte[3]); 433 } 434 #endif /* DEBUG_EPT_MISCONFIG */ 435 return (VMEXIT_ABORT); 436 } 437 438 static int 439 vmexit_svm(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 440 { 441 442 fprintf(stderr, "vm exit[%d]\n", *pvcpu); 443 fprintf(stderr, "\treason\t\tSVM\n"); 444 fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip); 445 fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length); 446 fprintf(stderr, "\texitcode\t%#lx\n", vmexit->u.svm.exitcode); 447 fprintf(stderr, "\texitinfo1\t%#lx\n", vmexit->u.svm.exitinfo1); 448 fprintf(stderr, "\texitinfo2\t%#lx\n", vmexit->u.svm.exitinfo2); 449 return (VMEXIT_ABORT); 450 } 451 452 static int 453 vmexit_bogus(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 454 { 455 456 assert(vmexit->inst_length == 0); 457 458 stats.vmexit_bogus++; 459 460 return (VMEXIT_CONTINUE); 461 } 462 463 static int 464 vmexit_hlt(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 465 { 466 467 stats.vmexit_hlt++; 468 469 /* 470 * Just continue execution with the next instruction. We use 471 * the HLT VM exit as a way to be friendly with the host 472 * scheduler. 473 */ 474 return (VMEXIT_CONTINUE); 475 } 476 477 static int 478 vmexit_pause(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 479 { 480 481 stats.vmexit_pause++; 482 483 return (VMEXIT_CONTINUE); 484 } 485 486 static int 487 vmexit_mtrap(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 488 { 489 490 assert(vmexit->inst_length == 0); 491 492 stats.vmexit_mtrap++; 493 494 return (VMEXIT_CONTINUE); 495 } 496 497 static int 498 vmexit_inst_emul(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 499 { 500 int err, i; 501 struct vie *vie; 502 503 stats.vmexit_inst_emul++; 504 505 vie = &vmexit->u.inst_emul.vie; 506 err = emulate_mem(ctx, *pvcpu, vmexit->u.inst_emul.gpa, 507 vie, &vmexit->u.inst_emul.paging); 508 509 if (err) { 510 if (err == ESRCH) { 511 fprintf(stderr, "Unhandled memory access to 0x%lx\n", 512 vmexit->u.inst_emul.gpa); 513 } 514 515 fprintf(stderr, "Failed to emulate instruction ["); 516 for (i = 0; i < vie->num_valid; i++) { 517 fprintf(stderr, "0x%02x%s", vie->inst[i], 518 i != (vie->num_valid - 1) ? " " : ""); 519 } 520 fprintf(stderr, "] at 0x%lx\n", vmexit->rip); 521 return (VMEXIT_ABORT); 522 } 523 524 return (VMEXIT_CONTINUE); 525 } 526 527 static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER; 528 static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER; 529 530 static int 531 vmexit_suspend(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu) 532 { 533 enum vm_suspend_how how; 534 535 how = vmexit->u.suspended.how; 536 537 fbsdrun_deletecpu(ctx, *pvcpu); 538 539 if (*pvcpu != BSP) { 540 pthread_mutex_lock(&resetcpu_mtx); 541 pthread_cond_signal(&resetcpu_cond); 542 pthread_mutex_unlock(&resetcpu_mtx); 543 pthread_exit(NULL); 544 } 545 546 pthread_mutex_lock(&resetcpu_mtx); 547 while (!CPU_EMPTY(&cpumask)) { 548 pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx); 549 } 550 pthread_mutex_unlock(&resetcpu_mtx); 551 552 switch (how) { 553 case VM_SUSPEND_RESET: 554 exit(0); 555 case VM_SUSPEND_POWEROFF: 556 exit(1); 557 case VM_SUSPEND_HALT: 558 exit(2); 559 case VM_SUSPEND_TRIPLEFAULT: 560 exit(3); 561 default: 562 fprintf(stderr, "vmexit_suspend: invalid reason %d\n", how); 563 exit(100); 564 } 565 return (0); /* NOTREACHED */ 566 } 567 568 static vmexit_handler_t handler[VM_EXITCODE_MAX] = { 569 [VM_EXITCODE_INOUT] = vmexit_inout, 570 [VM_EXITCODE_INOUT_STR] = vmexit_inout, 571 [VM_EXITCODE_VMX] = vmexit_vmx, 572 [VM_EXITCODE_SVM] = vmexit_svm, 573 [VM_EXITCODE_BOGUS] = vmexit_bogus, 574 [VM_EXITCODE_RDMSR] = vmexit_rdmsr, 575 [VM_EXITCODE_WRMSR] = vmexit_wrmsr, 576 [VM_EXITCODE_MTRAP] = vmexit_mtrap, 577 [VM_EXITCODE_INST_EMUL] = vmexit_inst_emul, 578 [VM_EXITCODE_SPINUP_AP] = vmexit_spinup_ap, 579 [VM_EXITCODE_SUSPENDED] = vmexit_suspend, 580 [VM_EXITCODE_TASK_SWITCH] = vmexit_task_switch, 581 }; 582 583 static void 584 vm_loop(struct vmctx *ctx, int vcpu, uint64_t startrip) 585 { 586 int error, rc, prevcpu; 587 enum vm_exitcode exitcode; 588 cpuset_t active_cpus; 589 590 if (vcpumap[vcpu] != NULL) { 591 error = pthread_setaffinity_np(pthread_self(), 592 sizeof(cpuset_t), vcpumap[vcpu]); 593 assert(error == 0); 594 } 595 596 error = vm_active_cpus(ctx, &active_cpus); 597 assert(CPU_ISSET(vcpu, &active_cpus)); 598 599 error = vm_set_register(ctx, vcpu, VM_REG_GUEST_RIP, startrip); 600 assert(error == 0); 601 602 while (1) { 603 error = vm_run(ctx, vcpu, &vmexit[vcpu]); 604 if (error != 0) 605 break; 606 607 prevcpu = vcpu; 608 609 exitcode = vmexit[vcpu].exitcode; 610 if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) { 611 fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n", 612 exitcode); 613 exit(1); 614 } 615 616 rc = (*handler[exitcode])(ctx, &vmexit[vcpu], &vcpu); 617 618 switch (rc) { 619 case VMEXIT_CONTINUE: 620 break; 621 case VMEXIT_ABORT: 622 abort(); 623 default: 624 exit(1); 625 } 626 } 627 fprintf(stderr, "vm_run error %d, errno %d\n", error, errno); 628 } 629 630 static int 631 num_vcpus_allowed(struct vmctx *ctx) 632 { 633 int tmp, error; 634 635 error = vm_get_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, &tmp); 636 637 /* 638 * The guest is allowed to spinup more than one processor only if the 639 * UNRESTRICTED_GUEST capability is available. 640 */ 641 if (error == 0) 642 return (VM_MAXCPU); 643 else 644 return (1); 645 } 646 647 void 648 fbsdrun_set_capabilities(struct vmctx *ctx, int cpu) 649 { 650 int err, tmp; 651 652 if (fbsdrun_vmexit_on_hlt()) { 653 err = vm_get_capability(ctx, cpu, VM_CAP_HALT_EXIT, &tmp); 654 if (err < 0) { 655 fprintf(stderr, "VM exit on HLT not supported\n"); 656 exit(1); 657 } 658 vm_set_capability(ctx, cpu, VM_CAP_HALT_EXIT, 1); 659 if (cpu == BSP) 660 handler[VM_EXITCODE_HLT] = vmexit_hlt; 661 } 662 663 if (fbsdrun_vmexit_on_pause()) { 664 /* 665 * pause exit support required for this mode 666 */ 667 err = vm_get_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, &tmp); 668 if (err < 0) { 669 fprintf(stderr, 670 "SMP mux requested, no pause support\n"); 671 exit(1); 672 } 673 vm_set_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, 1); 674 if (cpu == BSP) 675 handler[VM_EXITCODE_PAUSE] = vmexit_pause; 676 } 677 678 if (x2apic_mode) 679 err = vm_set_x2apic_state(ctx, cpu, X2APIC_ENABLED); 680 else 681 err = vm_set_x2apic_state(ctx, cpu, X2APIC_DISABLED); 682 683 if (err) { 684 fprintf(stderr, "Unable to set x2apic state (%d)\n", err); 685 exit(1); 686 } 687 688 vm_set_capability(ctx, cpu, VM_CAP_ENABLE_INVPCID, 1); 689 } 690 691 int 692 main(int argc, char *argv[]) 693 { 694 int c, error, gdb_port, err, bvmcons; 695 int dump_guest_memory, max_vcpus, mptgen; 696 int rtc_localtime; 697 struct vmctx *ctx; 698 uint64_t rip; 699 size_t memsize; 700 701 bvmcons = 0; 702 dump_guest_memory = 0; 703 progname = basename(argv[0]); 704 gdb_port = 0; 705 guest_ncpus = 1; 706 memsize = 256 * MB; 707 mptgen = 1; 708 rtc_localtime = 1; 709 710 while ((c = getopt(argc, argv, "abehuwxACHIPWYp:g:c:s:m:l:U:")) != -1) { 711 switch (c) { 712 case 'a': 713 x2apic_mode = 0; 714 break; 715 case 'A': 716 acpi = 1; 717 break; 718 case 'b': 719 bvmcons = 1; 720 break; 721 case 'p': 722 if (pincpu_parse(optarg) != 0) { 723 errx(EX_USAGE, "invalid vcpu pinning " 724 "configuration '%s'", optarg); 725 } 726 break; 727 case 'c': 728 guest_ncpus = atoi(optarg); 729 break; 730 case 'C': 731 dump_guest_memory = 1; 732 break; 733 case 'g': 734 gdb_port = atoi(optarg); 735 break; 736 case 'l': 737 if (lpc_device_parse(optarg) != 0) { 738 errx(EX_USAGE, "invalid lpc device " 739 "configuration '%s'", optarg); 740 } 741 break; 742 case 's': 743 if (pci_parse_slot(optarg) != 0) 744 exit(1); 745 else 746 break; 747 case 'm': 748 error = vm_parse_memsize(optarg, &memsize); 749 if (error) 750 errx(EX_USAGE, "invalid memsize '%s'", optarg); 751 break; 752 case 'H': 753 guest_vmexit_on_hlt = 1; 754 break; 755 case 'I': 756 /* 757 * The "-I" option was used to add an ioapic to the 758 * virtual machine. 759 * 760 * An ioapic is now provided unconditionally for each 761 * virtual machine and this option is now deprecated. 762 */ 763 break; 764 case 'P': 765 guest_vmexit_on_pause = 1; 766 break; 767 case 'e': 768 strictio = 1; 769 break; 770 case 'u': 771 rtc_localtime = 0; 772 break; 773 case 'U': 774 guest_uuid_str = optarg; 775 break; 776 case 'w': 777 strictmsr = 0; 778 break; 779 case 'W': 780 virtio_msix = 0; 781 break; 782 case 'x': 783 x2apic_mode = 1; 784 break; 785 case 'Y': 786 mptgen = 0; 787 break; 788 case 'h': 789 usage(0); 790 default: 791 usage(1); 792 } 793 } 794 argc -= optind; 795 argv += optind; 796 797 if (argc != 1) 798 usage(1); 799 800 vmname = argv[0]; 801 802 ctx = vm_open(vmname); 803 if (ctx == NULL) { 804 perror("vm_open"); 805 exit(1); 806 } 807 808 if (guest_ncpus < 1) { 809 fprintf(stderr, "Invalid guest vCPUs (%d)\n", guest_ncpus); 810 exit(1); 811 } 812 813 max_vcpus = num_vcpus_allowed(ctx); 814 if (guest_ncpus > max_vcpus) { 815 fprintf(stderr, "%d vCPUs requested but only %d available\n", 816 guest_ncpus, max_vcpus); 817 exit(1); 818 } 819 820 fbsdrun_set_capabilities(ctx, BSP); 821 822 if (dump_guest_memory) 823 vm_set_memflags(ctx, VM_MEM_F_INCORE); 824 err = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 825 if (err) { 826 fprintf(stderr, "Unable to setup memory (%d)\n", err); 827 exit(1); 828 } 829 830 error = init_msr(); 831 if (error) { 832 fprintf(stderr, "init_msr error %d", error); 833 exit(1); 834 } 835 836 init_mem(); 837 init_inout(); 838 pci_irq_init(ctx); 839 ioapic_init(ctx); 840 841 rtc_init(ctx, rtc_localtime); 842 sci_init(ctx); 843 844 /* 845 * Exit if a device emulation finds an error in it's initilization 846 */ 847 if (init_pci(ctx) != 0) 848 exit(1); 849 850 if (gdb_port != 0) 851 init_dbgport(gdb_port); 852 853 if (bvmcons) 854 init_bvmcons(); 855 856 error = vm_get_register(ctx, BSP, VM_REG_GUEST_RIP, &rip); 857 assert(error == 0); 858 859 /* 860 * build the guest tables, MP etc. 861 */ 862 if (mptgen) { 863 error = mptable_build(ctx, guest_ncpus); 864 if (error) 865 exit(1); 866 } 867 868 error = smbios_build(ctx); 869 assert(error == 0); 870 871 if (acpi) { 872 error = acpi_build(ctx, guest_ncpus); 873 assert(error == 0); 874 } 875 876 /* 877 * Change the proc title to include the VM name. 878 */ 879 setproctitle("%s", vmname); 880 881 /* 882 * Add CPU 0 883 */ 884 fbsdrun_addcpu(ctx, BSP, BSP, rip); 885 886 /* 887 * Head off to the main event dispatch loop 888 */ 889 mevent_dispatch(); 890 891 exit(1); 892 } 893