vmmapi.c revision 241178
190075Sobrien/*- 290075Sobrien * Copyright (c) 2011 NetApp, Inc. 390075Sobrien * All rights reserved. 490075Sobrien * 590075Sobrien * Redistribution and use in source and binary forms, with or without 690075Sobrien * modification, are permitted provided that the following conditions 790075Sobrien * are met: 890075Sobrien * 1. Redistributions of source code must retain the above copyright 990075Sobrien * notice, this list of conditions and the following disclaimer. 1090075Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1190075Sobrien * notice, this list of conditions and the following disclaimer in the 1290075Sobrien * documentation and/or other materials provided with the distribution. 1390075Sobrien * 1490075Sobrien * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 1590075Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1690075Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1790075Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 1890075Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1990075Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2090075Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2190075Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2290075Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2390075Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2490075Sobrien * SUCH DAMAGE. 2590075Sobrien * 2690075Sobrien * $FreeBSD$ 2790075Sobrien */ 2890075Sobrien 2990075Sobrien#include <sys/cdefs.h> 3090075Sobrien__FBSDID("$FreeBSD$"); 3190075Sobrien 3290075Sobrien#include <sys/types.h> 3390075Sobrien#include <sys/sysctl.h> 3490075Sobrien#include <sys/ioctl.h> 3590075Sobrien#include <sys/mman.h> 3690075Sobrien 3790075Sobrien#include <machine/specialreg.h> 3890075Sobrien 3990075Sobrien#include <stdio.h> 4090075Sobrien#include <stdlib.h> 4190075Sobrien#include <assert.h> 4290075Sobrien#include <string.h> 4390075Sobrien#include <fcntl.h> 4490075Sobrien#include <unistd.h> 4590075Sobrien 4690075Sobrien#include <machine/vmm.h> 4790075Sobrien#include <machine/vmm_dev.h> 4890075Sobrien 4990075Sobrien#include "vmmapi.h" 5090075Sobrien#include "mptable.h" 5190075Sobrien 5290075Sobrien#define BIOS_ROM_BASE (0xf0000) 5390075Sobrien#define BIOS_ROM_SIZE (0x10000) 5490075Sobrien 5590075Sobrienstruct vmctx { 5690075Sobrien int fd; 5790075Sobrien char *name; 5890075Sobrien}; 5990075Sobrien 6090075Sobrien#define CREATE(x) sysctlbyname("hw.vmm.create", NULL, NULL, (x), strlen((x))) 6190075Sobrien#define DESTROY(x) sysctlbyname("hw.vmm.destroy", NULL, NULL, (x), strlen((x))) 6290075Sobrien 6390075Sobrienstatic int 6490075Sobrienvm_device_open(const char *name) 6590075Sobrien{ 6690075Sobrien int fd, len; 6790075Sobrien char *vmfile; 6890075Sobrien 6990075Sobrien len = strlen("/dev/vmm/") + strlen(name) + 1; 7090075Sobrien vmfile = malloc(len); 7190075Sobrien assert(vmfile != NULL); 7290075Sobrien snprintf(vmfile, len, "/dev/vmm/%s", name); 7390075Sobrien 7490075Sobrien /* Open the device file */ 7590075Sobrien fd = open(vmfile, O_RDWR, 0); 7690075Sobrien 7790075Sobrien free(vmfile); 7890075Sobrien return (fd); 7990075Sobrien} 8090075Sobrien 8190075Sobrienint 8290075Sobrienvm_create(const char *name) 8390075Sobrien{ 8490075Sobrien 8590075Sobrien return (CREATE((char *)name)); 8690075Sobrien} 8790075Sobrien 8890075Sobrienstruct vmctx * 8990075Sobrienvm_open(const char *name) 9090075Sobrien{ 9190075Sobrien struct vmctx *vm; 9290075Sobrien 9390075Sobrien vm = malloc(sizeof(struct vmctx) + strlen(name) + 1); 9490075Sobrien assert(vm != NULL); 9590075Sobrien 9690075Sobrien vm->fd = -1; 9790075Sobrien vm->name = (char *)(vm + 1); 9890075Sobrien strcpy(vm->name, name); 9990075Sobrien 10090075Sobrien if ((vm->fd = vm_device_open(vm->name)) < 0) 10190075Sobrien goto err; 10290075Sobrien 10390075Sobrien return (vm); 10490075Sobrienerr: 10590075Sobrien vm_destroy(vm); 10690075Sobrien return (NULL); 10790075Sobrien} 10890075Sobrien 10990075Sobrienvoid 11090075Sobrienvm_destroy(struct vmctx *vm) 11190075Sobrien{ 11290075Sobrien assert(vm != NULL); 11390075Sobrien 11490075Sobrien if (vm->fd >= 0) 11590075Sobrien close(vm->fd); 11690075Sobrien DESTROY(vm->name); 11790075Sobrien 11890075Sobrien free(vm); 11990075Sobrien} 12090075Sobrien 12190075Sobriensize_t 12290075Sobrienvmm_get_mem_total(void) 12390075Sobrien{ 12490075Sobrien size_t mem_total = 0; 12590075Sobrien size_t oldlen = sizeof(mem_total); 12690075Sobrien int error; 12790075Sobrien error = sysctlbyname("hw.vmm.mem_total", &mem_total, &oldlen, NULL, 0); 12890075Sobrien if (error) 12990075Sobrien return -1; 13090075Sobrien return mem_total; 13190075Sobrien} 13290075Sobrien 13390075Sobriensize_t 13490075Sobrienvmm_get_mem_free(void) 13590075Sobrien{ 13690075Sobrien size_t mem_free = 0; 13790075Sobrien size_t oldlen = sizeof(mem_free); 13890075Sobrien int error; 13990075Sobrien error = sysctlbyname("hw.vmm.mem_free", &mem_free, &oldlen, NULL, 0); 14090075Sobrien if (error) 14190075Sobrien return -1; 14290075Sobrien return mem_free; 14390075Sobrien} 14490075Sobrien 14590075Sobrienint 14690075Sobrienvm_get_memory_seg(struct vmctx *ctx, vm_paddr_t gpa, 14790075Sobrien vm_paddr_t *ret_hpa, size_t *ret_len) 14890075Sobrien{ 14990075Sobrien int error; 15090075Sobrien struct vm_memory_segment seg; 15190075Sobrien 15290075Sobrien bzero(&seg, sizeof(seg)); 15390075Sobrien seg.gpa = gpa; 15490075Sobrien error = ioctl(ctx->fd, VM_GET_MEMORY_SEG, &seg); 15590075Sobrien *ret_len = seg.len; 15690075Sobrien return (error); 15790075Sobrien} 15890075Sobrien 15990075Sobrienint 16090075Sobrienvm_setup_memory(struct vmctx *ctx, vm_paddr_t gpa, size_t len, char **mapaddr) 16190075Sobrien{ 16290075Sobrien int error; 16390075Sobrien struct vm_memory_segment seg; 16490075Sobrien 16590075Sobrien /* 16690075Sobrien * Create and optionally map 'len' bytes of memory at guest 16790075Sobrien * physical address 'gpa' 16890075Sobrien */ 16990075Sobrien bzero(&seg, sizeof(seg)); 17090075Sobrien seg.gpa = gpa; 17190075Sobrien seg.len = len; 17290075Sobrien error = ioctl(ctx->fd, VM_MAP_MEMORY, &seg); 17390075Sobrien if (error == 0 && mapaddr != NULL) { 17490075Sobrien *mapaddr = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, 17590075Sobrien ctx->fd, gpa); 17690075Sobrien } 17790075Sobrien return (error); 17890075Sobrien} 17990075Sobrien 18090075Sobrienchar * 18190075Sobrienvm_map_memory(struct vmctx *ctx, vm_paddr_t gpa, size_t len) 18290075Sobrien{ 18390075Sobrien 18490075Sobrien /* Map 'len' bytes of memory at guest physical address 'gpa' */ 18590075Sobrien return ((char *)mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, 18690075Sobrien ctx->fd, gpa)); 18790075Sobrien} 18890075Sobrien 18990075Sobrienint 19090075Sobrienvm_set_desc(struct vmctx *ctx, int vcpu, int reg, 19190075Sobrien uint64_t base, uint32_t limit, uint32_t access) 19290075Sobrien{ 19390075Sobrien int error; 19490075Sobrien struct vm_seg_desc vmsegdesc; 19590075Sobrien 19690075Sobrien bzero(&vmsegdesc, sizeof(vmsegdesc)); 19790075Sobrien vmsegdesc.cpuid = vcpu; 19890075Sobrien vmsegdesc.regnum = reg; 19990075Sobrien vmsegdesc.desc.base = base; 20090075Sobrien vmsegdesc.desc.limit = limit; 20190075Sobrien vmsegdesc.desc.access = access; 20290075Sobrien 20390075Sobrien error = ioctl(ctx->fd, VM_SET_SEGMENT_DESCRIPTOR, &vmsegdesc); 20490075Sobrien return (error); 20590075Sobrien} 20690075Sobrien 20790075Sobrienint 20890075Sobrienvm_get_desc(struct vmctx *ctx, int vcpu, int reg, 20990075Sobrien uint64_t *base, uint32_t *limit, uint32_t *access) 21090075Sobrien{ 21190075Sobrien int error; 21290075Sobrien struct vm_seg_desc vmsegdesc; 21390075Sobrien 21490075Sobrien bzero(&vmsegdesc, sizeof(vmsegdesc)); 21590075Sobrien vmsegdesc.cpuid = vcpu; 21690075Sobrien vmsegdesc.regnum = reg; 21790075Sobrien 21890075Sobrien error = ioctl(ctx->fd, VM_GET_SEGMENT_DESCRIPTOR, &vmsegdesc); 21990075Sobrien if (error == 0) { 22090075Sobrien *base = vmsegdesc.desc.base; 22190075Sobrien *limit = vmsegdesc.desc.limit; 22290075Sobrien *access = vmsegdesc.desc.access; 22390075Sobrien } 22490075Sobrien return (error); 22590075Sobrien} 22690075Sobrien 22790075Sobrienint 22890075Sobrienvm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val) 22990075Sobrien{ 23090075Sobrien int error; 23190075Sobrien struct vm_register vmreg; 23290075Sobrien 23390075Sobrien bzero(&vmreg, sizeof(vmreg)); 23490075Sobrien vmreg.cpuid = vcpu; 23590075Sobrien vmreg.regnum = reg; 23690075Sobrien vmreg.regval = val; 237 238 error = ioctl(ctx->fd, VM_SET_REGISTER, &vmreg); 239 return (error); 240} 241 242int 243vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *ret_val) 244{ 245 int error; 246 struct vm_register vmreg; 247 248 bzero(&vmreg, sizeof(vmreg)); 249 vmreg.cpuid = vcpu; 250 vmreg.regnum = reg; 251 252 error = ioctl(ctx->fd, VM_GET_REGISTER, &vmreg); 253 *ret_val = vmreg.regval; 254 return (error); 255} 256 257int 258vm_get_pinning(struct vmctx *ctx, int vcpu, int *host_cpuid) 259{ 260 int error; 261 struct vm_pin vmpin; 262 263 bzero(&vmpin, sizeof(vmpin)); 264 vmpin.vm_cpuid = vcpu; 265 266 error = ioctl(ctx->fd, VM_GET_PINNING, &vmpin); 267 *host_cpuid = vmpin.host_cpuid; 268 return (error); 269} 270 271int 272vm_set_pinning(struct vmctx *ctx, int vcpu, int host_cpuid) 273{ 274 int error; 275 struct vm_pin vmpin; 276 277 bzero(&vmpin, sizeof(vmpin)); 278 vmpin.vm_cpuid = vcpu; 279 vmpin.host_cpuid = host_cpuid; 280 281 error = ioctl(ctx->fd, VM_SET_PINNING, &vmpin); 282 return (error); 283} 284 285int 286vm_run(struct vmctx *ctx, int vcpu, uint64_t rip, struct vm_exit *vmexit) 287{ 288 int error; 289 struct vm_run vmrun; 290 291 bzero(&vmrun, sizeof(vmrun)); 292 vmrun.cpuid = vcpu; 293 vmrun.rip = rip; 294 295 error = ioctl(ctx->fd, VM_RUN, &vmrun); 296 bcopy(&vmrun.vm_exit, vmexit, sizeof(struct vm_exit)); 297 return (error); 298} 299 300static int 301vm_inject_event_real(struct vmctx *ctx, int vcpu, enum vm_event_type type, 302 int vector, int error_code, int error_code_valid) 303{ 304 struct vm_event ev; 305 306 bzero(&ev, sizeof(ev)); 307 ev.cpuid = vcpu; 308 ev.type = type; 309 ev.vector = vector; 310 ev.error_code = error_code; 311 ev.error_code_valid = error_code_valid; 312 313 return (ioctl(ctx->fd, VM_INJECT_EVENT, &ev)); 314} 315 316int 317vm_inject_event(struct vmctx *ctx, int vcpu, enum vm_event_type type, 318 int vector) 319{ 320 321 return (vm_inject_event_real(ctx, vcpu, type, vector, 0, 0)); 322} 323 324int 325vm_inject_event2(struct vmctx *ctx, int vcpu, enum vm_event_type type, 326 int vector, int error_code) 327{ 328 329 return (vm_inject_event_real(ctx, vcpu, type, vector, error_code, 1)); 330} 331 332int 333vm_build_tables(struct vmctx *ctxt, int ncpu, int ioapic, 334 void *oemtbl, int oemtblsz) 335{ 336 337 return (vm_build_mptable(ctxt, BIOS_ROM_BASE, BIOS_ROM_SIZE, ncpu, 338 ioapic, oemtbl, oemtblsz)); 339} 340 341int 342vm_apicid2vcpu(struct vmctx *ctx, int apicid) 343{ 344 /* 345 * The apic id associated with the 'vcpu' has the same numerical value 346 * as the 'vcpu' itself. 347 */ 348 return (apicid); 349} 350 351int 352vm_lapic_irq(struct vmctx *ctx, int vcpu, int vector) 353{ 354 struct vm_lapic_irq vmirq; 355 356 bzero(&vmirq, sizeof(vmirq)); 357 vmirq.cpuid = vcpu; 358 vmirq.vector = vector; 359 360 return (ioctl(ctx->fd, VM_LAPIC_IRQ, &vmirq)); 361} 362 363int 364vm_inject_nmi(struct vmctx *ctx, int vcpu) 365{ 366 struct vm_nmi vmnmi; 367 368 bzero(&vmnmi, sizeof(vmnmi)); 369 vmnmi.cpuid = vcpu; 370 371 return (ioctl(ctx->fd, VM_INJECT_NMI, &vmnmi)); 372} 373 374int 375vm_capability_name2type(const char *capname) 376{ 377 int i; 378 379 static struct { 380 const char *name; 381 int type; 382 } capstrmap[] = { 383 { "hlt_exit", VM_CAP_HALT_EXIT }, 384 { "mtrap_exit", VM_CAP_MTRAP_EXIT }, 385 { "pause_exit", VM_CAP_PAUSE_EXIT }, 386 { "unrestricted_guest", VM_CAP_UNRESTRICTED_GUEST }, 387 { 0 } 388 }; 389 390 for (i = 0; capstrmap[i].name != NULL && capname != NULL; i++) { 391 if (strcmp(capstrmap[i].name, capname) == 0) 392 return (capstrmap[i].type); 393 } 394 395 return (-1); 396} 397 398int 399vm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap, 400 int *retval) 401{ 402 int error; 403 struct vm_capability vmcap; 404 405 bzero(&vmcap, sizeof(vmcap)); 406 vmcap.cpuid = vcpu; 407 vmcap.captype = cap; 408 409 error = ioctl(ctx->fd, VM_GET_CAPABILITY, &vmcap); 410 *retval = vmcap.capval; 411 return (error); 412} 413 414int 415vm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap, int val) 416{ 417 struct vm_capability vmcap; 418 419 bzero(&vmcap, sizeof(vmcap)); 420 vmcap.cpuid = vcpu; 421 vmcap.captype = cap; 422 vmcap.capval = val; 423 424 return (ioctl(ctx->fd, VM_SET_CAPABILITY, &vmcap)); 425} 426 427int 428vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func) 429{ 430 struct vm_pptdev pptdev; 431 432 bzero(&pptdev, sizeof(pptdev)); 433 pptdev.bus = bus; 434 pptdev.slot = slot; 435 pptdev.func = func; 436 437 return (ioctl(ctx->fd, VM_BIND_PPTDEV, &pptdev)); 438} 439 440int 441vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func) 442{ 443 struct vm_pptdev pptdev; 444 445 bzero(&pptdev, sizeof(pptdev)); 446 pptdev.bus = bus; 447 pptdev.slot = slot; 448 pptdev.func = func; 449 450 return (ioctl(ctx->fd, VM_UNBIND_PPTDEV, &pptdev)); 451} 452 453int 454vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func, 455 vm_paddr_t gpa, size_t len, vm_paddr_t hpa) 456{ 457 struct vm_pptdev_mmio pptmmio; 458 459 bzero(&pptmmio, sizeof(pptmmio)); 460 pptmmio.bus = bus; 461 pptmmio.slot = slot; 462 pptmmio.func = func; 463 pptmmio.gpa = gpa; 464 pptmmio.len = len; 465 pptmmio.hpa = hpa; 466 467 return (ioctl(ctx->fd, VM_MAP_PPTDEV_MMIO, &pptmmio)); 468} 469 470int 471vm_setup_msi(struct vmctx *ctx, int vcpu, int bus, int slot, int func, 472 int destcpu, int vector, int numvec) 473{ 474 struct vm_pptdev_msi pptmsi; 475 476 bzero(&pptmsi, sizeof(pptmsi)); 477 pptmsi.vcpu = vcpu; 478 pptmsi.bus = bus; 479 pptmsi.slot = slot; 480 pptmsi.func = func; 481 pptmsi.destcpu = destcpu; 482 pptmsi.vector = vector; 483 pptmsi.numvec = numvec; 484 485 return (ioctl(ctx->fd, VM_PPTDEV_MSI, &pptmsi)); 486} 487 488int 489vm_setup_msix(struct vmctx *ctx, int vcpu, int bus, int slot, int func, 490 int idx, uint32_t msg, uint32_t vector_control, uint64_t addr) 491{ 492 struct vm_pptdev_msix pptmsix; 493 494 bzero(&pptmsix, sizeof(pptmsix)); 495 pptmsix.vcpu = vcpu; 496 pptmsix.bus = bus; 497 pptmsix.slot = slot; 498 pptmsix.func = func; 499 pptmsix.idx = idx; 500 pptmsix.msg = msg; 501 pptmsix.addr = addr; 502 pptmsix.vector_control = vector_control; 503 504 return ioctl(ctx->fd, VM_PPTDEV_MSIX, &pptmsix); 505} 506 507uint64_t * 508vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv, 509 int *ret_entries) 510{ 511 int error; 512 513 static struct vm_stats vmstats; 514 515 vmstats.cpuid = vcpu; 516 517 error = ioctl(ctx->fd, VM_STATS, &vmstats); 518 if (error == 0) { 519 if (ret_entries) 520 *ret_entries = vmstats.num_entries; 521 if (ret_tv) 522 *ret_tv = vmstats.tv; 523 return (vmstats.statbuf); 524 } else 525 return (NULL); 526} 527 528const char * 529vm_get_stat_desc(struct vmctx *ctx, int index) 530{ 531 static struct vm_stat_desc statdesc; 532 533 statdesc.index = index; 534 if (ioctl(ctx->fd, VM_STAT_DESC, &statdesc) == 0) 535 return (statdesc.desc); 536 else 537 return (NULL); 538} 539 540int 541vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *state) 542{ 543 int error; 544 struct vm_x2apic x2apic; 545 546 bzero(&x2apic, sizeof(x2apic)); 547 x2apic.cpuid = vcpu; 548 549 error = ioctl(ctx->fd, VM_GET_X2APIC_STATE, &x2apic); 550 *state = x2apic.state; 551 return (error); 552} 553 554int 555vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state state) 556{ 557 int error; 558 struct vm_x2apic x2apic; 559 560 bzero(&x2apic, sizeof(x2apic)); 561 x2apic.cpuid = vcpu; 562 x2apic.state = state; 563 564 error = ioctl(ctx->fd, VM_SET_X2APIC_STATE, &x2apic); 565 566 return (error); 567} 568 569/* 570 * From Intel Vol 3a: 571 * Table 9-1. IA-32 Processor States Following Power-up, Reset or INIT 572 */ 573int 574vcpu_reset(struct vmctx *vmctx, int vcpu) 575{ 576 int error; 577 uint64_t rflags, rip, cr0, cr4, zero, desc_base, rdx; 578 uint32_t desc_access, desc_limit; 579 uint16_t sel; 580 581 zero = 0; 582 583 rflags = 0x2; 584 error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RFLAGS, rflags); 585 if (error) 586 goto done; 587 588 rip = 0xfff0; 589 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RIP, rip)) != 0) 590 goto done; 591 592 cr0 = CR0_NE; 593 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CR0, cr0)) != 0) 594 goto done; 595 596 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CR3, zero)) != 0) 597 goto done; 598 599 cr4 = 0; 600 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CR4, cr4)) != 0) 601 goto done; 602 603 /* 604 * CS: present, r/w, accessed, 16-bit, byte granularity, usable 605 */ 606 desc_base = 0xffff0000; 607 desc_limit = 0xffff; 608 desc_access = 0x0093; 609 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_CS, 610 desc_base, desc_limit, desc_access); 611 if (error) 612 goto done; 613 614 sel = 0xf000; 615 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CS, sel)) != 0) 616 goto done; 617 618 /* 619 * SS,DS,ES,FS,GS: present, r/w, accessed, 16-bit, byte granularity 620 */ 621 desc_base = 0; 622 desc_limit = 0xffff; 623 desc_access = 0x0093; 624 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_SS, 625 desc_base, desc_limit, desc_access); 626 if (error) 627 goto done; 628 629 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_DS, 630 desc_base, desc_limit, desc_access); 631 if (error) 632 goto done; 633 634 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_ES, 635 desc_base, desc_limit, desc_access); 636 if (error) 637 goto done; 638 639 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_FS, 640 desc_base, desc_limit, desc_access); 641 if (error) 642 goto done; 643 644 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_GS, 645 desc_base, desc_limit, desc_access); 646 if (error) 647 goto done; 648 649 sel = 0; 650 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_SS, sel)) != 0) 651 goto done; 652 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_DS, sel)) != 0) 653 goto done; 654 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_ES, sel)) != 0) 655 goto done; 656 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_FS, sel)) != 0) 657 goto done; 658 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_GS, sel)) != 0) 659 goto done; 660 661 /* General purpose registers */ 662 rdx = 0xf00; 663 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RAX, zero)) != 0) 664 goto done; 665 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RBX, zero)) != 0) 666 goto done; 667 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RCX, zero)) != 0) 668 goto done; 669 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RDX, rdx)) != 0) 670 goto done; 671 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RSI, zero)) != 0) 672 goto done; 673 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RDI, zero)) != 0) 674 goto done; 675 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RBP, zero)) != 0) 676 goto done; 677 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RSP, zero)) != 0) 678 goto done; 679 680 /* GDTR, IDTR */ 681 desc_base = 0; 682 desc_limit = 0xffff; 683 desc_access = 0; 684 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_GDTR, 685 desc_base, desc_limit, desc_access); 686 if (error != 0) 687 goto done; 688 689 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_IDTR, 690 desc_base, desc_limit, desc_access); 691 if (error != 0) 692 goto done; 693 694 /* TR */ 695 desc_base = 0; 696 desc_limit = 0xffff; 697 desc_access = 0x0000008b; 698 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_TR, 0, 0, desc_access); 699 if (error) 700 goto done; 701 702 sel = 0; 703 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_TR, sel)) != 0) 704 goto done; 705 706 /* LDTR */ 707 desc_base = 0; 708 desc_limit = 0xffff; 709 desc_access = 0x00000082; 710 error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_LDTR, desc_base, 711 desc_limit, desc_access); 712 if (error) 713 goto done; 714 715 sel = 0; 716 if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_LDTR, 0)) != 0) 717 goto done; 718 719 /* XXX cr2, debug registers */ 720 721 error = 0; 722done: 723 return (error); 724} 725