palacios/src/palacios/svm_handler.c

   1 /*
   2  * This file is part of the Palacios Virtual Machine Monitor developed
   3  * by the V3VEE Project with funding from the United States National
   4  * Science Foundation and the Department of Energy.
   5  *
   6  * The V3VEE Project is a joint project between Northwestern University
   7  * and the University of New Mexico.  You can find out more at
   8  * http://www.v3vee.org
   9  *
  10  * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
  11  * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
  12  * All rights reserved.
  13  *
  14  * Author: Jack Lange <jarusl@cs.northwestern.edu>
  15  *
  16  * This is free software.  You are permitted to use,
  17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
  18  */
  19
  20
  21 #include <palacios/svm_handler.h>
  22 #include <palacios/vmm.h>
  23 #include <palacios/vm_guest_mem.h>
  24 #include <palacios/vmm_decoder.h>
  25 #include <palacios/vmm_ctrl_regs.h>
  26 #include <palacios/svm_io.h>
  27 #include <palacios/svm_halt.h>
  28 #include <palacios/svm_pause.h>
  29 #include <palacios/svm_wbinvd.h>
  30 #include <palacios/vmm_intr.h>
  31 #include <palacios/vmm_emulator.h>
  32 #include <palacios/svm_msr.h>
  33
  34
  35
  36 static const uchar_t * vmexit_code_to_str(uint_t exit_code);
  37
  38
  39 int v3_handle_svm_exit(struct guest_info * info) {
  40   vmcb_ctrl_t * guest_ctrl = 0;
  41   vmcb_saved_state_t * guest_state = 0;
  42   ulong_t exit_code = 0;
  43
  44   guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
  45   guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
  46
  47
  48   // Update the high level state
  49   info->rip = guest_state->rip;
  50   info->vm_regs.rsp = guest_state->rsp;
  51   info->vm_regs.rax = guest_state->rax;
  52
  53   info->cpl = guest_state->cpl;
  54
  55
  56   info->ctrl_regs.cr0 = guest_state->cr0;
  57   info->ctrl_regs.cr2 = guest_state->cr2;
  58   info->ctrl_regs.cr3 = guest_state->cr3;
  59   info->ctrl_regs.cr4 = guest_state->cr4;
  60   info->dbg_regs.dr6 = guest_state->dr6;
  61   info->dbg_regs.dr7 = guest_state->dr7;
  62   info->ctrl_regs.cr8 = guest_ctrl->guest_ctrl.V_TPR;
  63   info->ctrl_regs.rflags = guest_state->rflags;
  64   info->ctrl_regs.efer = guest_state->efer;
  65
  66   get_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
  67   info->cpu_mode = v3_get_cpu_mode(info);
  68   info->mem_mode = v3_get_mem_mode(info);
  69
  70
  71   exit_code = guest_ctrl->exit_code;
  72
  73
  74   // Disable printing io exits due to bochs debug messages
  75   //if (!((exit_code == VMEXIT_IOIO) && ((ushort_t)(guest_ctrl->exit_info1 >> 16) == 0x402))) {
  76
  77
  78   //  PrintDebug("SVM Returned: Exit Code: 0x%x \t\t(tsc=%ul)\n",exit_code, (uint_t)info->time_state.guest_tsc);
  79
  80   if ((0) && (exit_code < 0x4f)) {
  81     uchar_t instr[32];
  82     int ret;
  83     // Dump out the instr stream
  84
  85     //PrintDebug("RIP: %x\n", guest_state->rip);
  86     PrintDebug("RIP Linear: %p\n", (void *)get_addr_linear(info, info->rip, &(info->segments.cs)));
  87
  88     // OK, now we will read the instruction
  89     // The only difference between PROTECTED and PROTECTED_PG is whether we read
  90     // from guest_pa or guest_va
  91     if (info->mem_mode == PHYSICAL_MEM) {
  92       // The real rip address is actually a combination of the rip + CS base
  93       ret = read_guest_pa_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 32, instr);
  94     } else {
  95       ret = read_guest_va_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 32, instr);
  96     }
  97
  98     if (ret != 32) {
  99       // I think we should inject a GPF into the guest
 100       PrintDebug("Could not read instruction (ret=%d)\n", ret);
 101     } else {
 102
 103       PrintDebug("Instr Stream:\n");
 104       PrintTraceMemDump(instr, 32);
 105     }
 106   }
 107
 108
 109     //  }
 110   // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
 111
 112
 113   // PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data);
 114   //PrintDebug("RIP: %x\n", guest_state->rip);
 115
 116
 117   //PrintDebug("SVM Returned: Exit Code: %x\n",exit_code);
 118
 119   switch (exit_code) {
 120
 121   case VMEXIT_IOIO:
 122     {
 123       struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
 124
 125       if (io_info->type == 0) {
 126         if (io_info->str) {
 127           if (v3_handle_svm_io_outs(info) == -1 ) {
 128             return -1;
 129           }
 130         } else {
 131           if (v3_handle_svm_io_out(info) == -1) {
 132             return -1;
 133           }
 134         }
 135       } else {
 136         if (io_info->str) {
 137           if (v3_handle_svm_io_ins(info) == -1) {
 138             return -1;
 139           }
 140         } else {
 141           if (v3_handle_svm_io_in(info) == -1) {
 142             return -1;
 143           }
 144         }
 145       }
 146       break;
 147     }
 148   case VMEXIT_MSR:
 149     {
 150
 151       if (guest_ctrl->exit_info1 == 0) {
 152         if (v3_handle_msr_read(info) == -1) {
 153           return -1;
 154         }
 155       } else if (guest_ctrl->exit_info1 == 1) {
 156         if (v3_handle_msr_write(info) == -1) {
 157           return -1;
 158         }
 159       } else {
 160         PrintError("Invalid MSR Operation\n");
 161         return -1;
 162       }
 163
 164       break;
 165     }
 166   case VMEXIT_CR0_WRITE:
 167     {
 168 #ifdef DEBUG_CTRL_REGS
 169       PrintDebug("CR0 Write\n");
 170 #endif
 171       if (v3_handle_cr0_write(info) == -1) {
 172         return -1;
 173       }
 174       break;
 175     }
 176   case VMEXIT_CR0_READ:
 177     {
 178 #ifdef DEBUG_CTRL_REGS
 179       PrintDebug("CR0 Read\n");
 180 #endif
 181       if (v3_handle_cr0_read(info) == -1) {
 182         return -1;
 183       }
 184       break;
 185     }
 186   case VMEXIT_CR3_WRITE:
 187     {
 188 #ifdef DEBUG_CTRL_REGS
 189       PrintDebug("CR3 Write\n");
 190 #endif
 191       if (v3_handle_cr3_write(info) == -1) {
 192         return -1;
 193       }
 194       break;
 195     }
 196   case  VMEXIT_CR3_READ:
 197     {
 198 #ifdef DEBUG_CTRL_REGS
 199       PrintDebug("CR3 Read\n");
 200 #endif
 201       if (v3_handle_cr3_read(info) == -1) {
 202         return -1;
 203       }
 204       break;
 205     }
 206   case VMEXIT_CR4_WRITE:
 207     {
 208 #ifdef DEBUG_CTRL_REGS
 209       PrintDebug("CR4 Write\n");
 210 #endif
 211       if (v3_handle_cr4_write(info) == -1) {
 212         return -1;
 213       }
 214       break;
 215     }
 216   case  VMEXIT_CR4_READ:
 217     {
 218 #ifdef DEBUG_CTRL_REGS
 219       PrintDebug("CR4 Read\n");
 220 #endif
 221       if (v3_handle_cr4_read(info) == -1) {
 222         return -1;
 223       }
 224       break;
 225     }
 226
 227   case VMEXIT_EXCP14:
 228     {
 229       addr_t fault_addr = guest_ctrl->exit_info2;
 230       pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1);
 231 #ifdef DEBUG_SHADOW_PAGING
 232       PrintDebug("PageFault at %p (error=%d)\n",
 233                  (void *)fault_addr, *(uint_t *)error_code);
 234 #endif
 235       if (info->shdw_pg_mode == SHADOW_PAGING) {
 236         if (v3_handle_shadow_pagefault(info, fault_addr, *error_code) == -1) {
 237           return -1;
 238         }
 239       } else {
 240         PrintError("Page fault in un implemented paging mode\n");
 241         return -1;
 242       }
 243       break;
 244     }
 245   case VMEXIT_NPF:
 246     {
 247       PrintError("Currently unhandled Nested Page Fault\n");
 248       return -1;
 249
 250       break;
 251     }
 252   case VMEXIT_INVLPG:
 253     {
 254       if (info->shdw_pg_mode == SHADOW_PAGING) {
 255 #ifdef DEBUG_SHADOW_PAGING
 256         PrintDebug("Invlpg\n");
 257 #endif
 258         if (v3_handle_shadow_invlpg(info) == -1) {
 259           return -1;
 260         }
 261       }
 262
 263       /*
 264         (exit_code == VMEXIT_INVLPGA)   ||
 265       */
 266       break;
 267     }
 268   case VMEXIT_INTR:
 269     {
 270       // handled by interrupt dispatch earlier
 271       break;
 272     }
 273   case VMEXIT_SMI:
 274     {
 275       //   handle_svm_smi(info); // ignored for now
 276       break;
 277     }
 278   case VMEXIT_HLT:
 279     {
 280 #ifdef DEBUG_HALT
 281       PrintDebug("Guest halted\n");
 282 #endif
 283       if (v3_handle_svm_halt(info) == -1) {
 284         return -1;
 285       }
 286       break;
 287     }
 288   case VMEXIT_PAUSE: {
 289     //PrintDebug("Guest paused\n");
 290     if (v3_handle_svm_pause(info) == -1) {
 291       return -1;
 292     }
 293   }
 294     break;
 295
 296
 297 #if 0
 298     // Emulation handlers currently not used
 299   case VMEXIT_EXCP1:
 300     {
 301 #ifdef DEBUG_EMULATOR
 302       PrintDebug("DEBUG EXCEPTION\n");
 303 #endif
 304       if (info->run_state == VM_EMULATING) {
 305         if (v3_emulation_exit_handler(info) == -1) {
 306           return -1;
 307         }
 308       } else {
 309         PrintError("VMMCALL with not emulator...\n");
 310         return -1;
 311       }
 312       break;
 313     }
 314
 315
 316   case VMEXIT_VMMCALL:
 317     {
 318 #ifdef DEBUG_EMULATOR
 319       PrintDebug("VMMCALL\n");
 320 #endif
 321       if (info->run_state == VM_EMULATING) {
 322         if (v3_emulation_exit_handler(info) == -1) {
 323           return -1;
 324         }
 325       } else {
 326         /*
 327         ulong_t tsc_spread = 0;
 328         ullong_t exit_tsc = 0;
 329
 330         ulong_t rax = (ulong_t)info->vm_regs.rbx;
 331         ulong_t rdx = (ulong_t)info->vm_regs.rcx;
 332
 333         *(ulong_t *)(&exit_tsc) = rax;
 334         *(((ulong_t *)(&exit_tsc)) + 1) = rdx;
 335
 336         tsc_spread = info->exit_tsc - exit_tsc;
 337
 338         PrintError("VMMCALL tsc diff = %lu\n",tsc_spread);
 339         info->rip += 3;
 340         */
 341         PrintError("VMMCALL with not emulator...\n");
 342         return -1;
 343       }
 344       break;
 345     }
 346 #endif
 347
 348
 349   case VMEXIT_WBINVD:
 350     {
 351 #ifdef DEBUG_EMULATOR
 352       PrintDebug("WBINVD\n");
 353 #endif
 354       if (!v3_handle_svm_wbinvd(info)) {
 355         return -1;
 356       }
 357       break;
 358     }
 359
 360
 361
 362
 363     /* Exits Following this line are NOT HANDLED */
 364     /*=======================================================================*/
 365
 366   default: {
 367
 368     addr_t rip_addr;
 369     uchar_t buf[15];
 370     addr_t host_addr;
 371
 372     PrintDebug("Unhandled SVM Exit: %s\n", vmexit_code_to_str(exit_code));
 373
 374     rip_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
 375
 376
 377     PrintError("SVM Returned:(VMCB=%p)\n", (void *)(info->vmm_data));
 378     PrintError("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
 379     PrintError("RIP Linear: %p\n", (void *)(addr_t)(rip_addr));
 380
 381     PrintError("SVM Returned: Exit Code: %p\n", (void *)(addr_t)exit_code);
 382
 383     PrintError("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
 384     PrintError("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
 385
 386     PrintError("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
 387     PrintError("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
 388
 389
 390
 391     if (info->mem_mode == PHYSICAL_MEM) {
 392       if (guest_pa_to_host_va(info, guest_state->rip, &host_addr) == -1) {
 393         PrintError("Could not translate guest_state->rip to host address\n");
 394         return -1;
 395       }
 396     } else if (info->mem_mode == VIRTUAL_MEM) {
 397       if (guest_va_to_host_va(info, guest_state->rip, &host_addr) == -1) {
 398         PrintError("Could not translate guest_state->rip to host address\n");
 399         return -1;
 400       }
 401     } else {
 402       PrintError("Invalid memory mode\n");
 403       return -1;
 404     }
 405
 406     PrintError("Host Address of rip = 0x%p\n", (void *)host_addr);
 407
 408     memset(buf, 0, 32);
 409
 410     PrintError("Reading instruction stream in guest (addr=%p)\n", (void *)rip_addr);
 411
 412     if (info->mem_mode == PHYSICAL_MEM) {
 413       read_guest_pa_memory(info, rip_addr - 16, 32, buf);
 414     } else {
 415       read_guest_va_memory(info, rip_addr - 16, 32, buf);
 416     }
 417
 418     PrintDebug("16 bytes before Rip\n");
 419     PrintTraceMemDump(buf, 16);
 420     PrintDebug("Rip onward\n");
 421     PrintTraceMemDump(buf+16, 16);
 422
 423     return -1;
 424
 425   }
 426     break;
 427
 428   }
 429   // END OF SWITCH (EXIT_CODE)
 430
 431
 432   // Update the low level state
 433
 434   if (v3_intr_pending(info)) {
 435
 436     switch (v3_get_intr_type(info)) {
 437     case EXTERNAL_IRQ:
 438       {
 439         uint_t irq = v3_get_intr_number(info);
 440
 441         // check to see if ==-1 (non exists)
 442
 443         /*
 444           guest_ctrl->EVENTINJ.vector = irq;
 445           guest_ctrl->EVENTINJ.valid = 1;
 446           guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXTERNAL_INTR;
 447         */
 448
 449         guest_ctrl->guest_ctrl.V_IRQ = 1;
 450         guest_ctrl->guest_ctrl.V_INTR_VECTOR = irq;
 451         guest_ctrl->guest_ctrl.V_IGN_TPR = 1;
 452         guest_ctrl->guest_ctrl.V_INTR_PRIO = 0xf;
 453 #ifdef DEBUG_INTERRUPTS
 454         PrintDebug("Injecting Interrupt %d (EIP=%p)\n",
 455                    guest_ctrl->guest_ctrl.V_INTR_VECTOR,
 456                    (void *)(addr_t)info->rip);
 457 #endif
 458         v3_injecting_intr(info, irq, EXTERNAL_IRQ);
 459
 460         break;
 461       }
 462     case NMI:
 463       guest_ctrl->EVENTINJ.type = SVM_INJECTION_NMI;
 464       break;
 465     case EXCEPTION:
 466       {
 467         uint_t excp = v3_get_intr_number(info);
 468
 469         guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION;
 470
 471         if (info->intr_state.excp_error_code_valid) {  //PAD
 472           guest_ctrl->EVENTINJ.error_code = info->intr_state.excp_error_code;
 473           guest_ctrl->EVENTINJ.ev = 1;
 474 #ifdef DEBUG_INTERRUPTS
 475           PrintDebug("Injecting error code %x\n", guest_ctrl->EVENTINJ.error_code);
 476 #endif
 477         }
 478
 479         guest_ctrl->EVENTINJ.vector = excp;
 480
 481         guest_ctrl->EVENTINJ.valid = 1;
 482 #ifdef DEBUG_INTERRUPTS
 483         PrintDebug("Injecting Interrupt %d (EIP=%p)\n",
 484                    guest_ctrl->EVENTINJ.vector,
 485                    (void *)(addr_t)info->rip);
 486 #endif
 487         v3_injecting_intr(info, excp, EXCEPTION);
 488         break;
 489       }
 490     case SOFTWARE_INTR:
 491       guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
 492       break;
 493     case VIRTUAL_INTR:
 494       guest_ctrl->EVENTINJ.type = SVM_INJECTION_VIRTUAL_INTR;
 495       break;
 496
 497     case INVALID_INTR:
 498     default:
 499       PrintError("Attempted to issue an invalid interrupt\n");
 500       return -1;
 501     }
 502
 503   } else {
 504 #ifdef DEBUG_INTERRUPTS
 505     PrintDebug("No interrupts/exceptions pending\n");
 506 #endif
 507   }
 508
 509   guest_state->cr0 = info->ctrl_regs.cr0;
 510   guest_state->cr2 = info->ctrl_regs.cr2;
 511   guest_state->cr3 = info->ctrl_regs.cr3;
 512   guest_state->cr4 = info->ctrl_regs.cr4;
 513   guest_state->dr6 = info->dbg_regs.dr6;
 514   guest_state->dr7 = info->dbg_regs.dr7;
 515   guest_ctrl->guest_ctrl.V_TPR = info->ctrl_regs.cr8 & 0xff;
 516   guest_state->rflags = info->ctrl_regs.rflags;
 517   guest_state->efer = info->ctrl_regs.efer;
 518
 519   guest_state->cpl = info->cpl;
 520
 521   guest_state->rax = info->vm_regs.rax;
 522   guest_state->rip = info->rip;
 523   guest_state->rsp = info->vm_regs.rsp;
 524
 525
 526   set_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
 527
 528   if (exit_code == VMEXIT_INTR) {
 529     //PrintDebug("INTR ret IP = %x\n", guest_state->rip);
 530   }
 531
 532   return 0;
 533 }
 534
 535
 536 static const uchar_t VMEXIT_CR0_READ_STR[] = "VMEXIT_CR0_READ";
 537 static const uchar_t VMEXIT_CR1_READ_STR[] = "VMEXIT_CR1_READ";
 538 static const uchar_t VMEXIT_CR2_READ_STR[] = "VMEXIT_CR2_READ";
 539 static const uchar_t VMEXIT_CR3_READ_STR[] = "VMEXIT_CR3_READ";
 540 static const uchar_t VMEXIT_CR4_READ_STR[] = "VMEXIT_CR4_READ";
 541 static const uchar_t VMEXIT_CR5_READ_STR[] = "VMEXIT_CR5_READ";
 542 static const uchar_t VMEXIT_CR6_READ_STR[] = "VMEXIT_CR6_READ";
 543 static const uchar_t VMEXIT_CR7_READ_STR[] = "VMEXIT_CR7_READ";
 544 static const uchar_t VMEXIT_CR8_READ_STR[] = "VMEXIT_CR8_READ";
 545 static const uchar_t VMEXIT_CR9_READ_STR[] = "VMEXIT_CR9_READ";
 546 static const uchar_t VMEXIT_CR10_READ_STR[] = "VMEXIT_CR10_READ";
 547 static const uchar_t VMEXIT_CR11_READ_STR[] = "VMEXIT_CR11_READ";
 548 static const uchar_t VMEXIT_CR12_READ_STR[] = "VMEXIT_CR12_READ";
 549 static const uchar_t VMEXIT_CR13_READ_STR[] = "VMEXIT_CR13_READ";
 550 static const uchar_t VMEXIT_CR14_READ_STR[] = "VMEXIT_CR14_READ";
 551 static const uchar_t VMEXIT_CR15_READ_STR[] = "VMEXIT_CR15_READ";
 552 static const uchar_t VMEXIT_CR0_WRITE_STR[] = "VMEXIT_CR0_WRITE";
 553 static const uchar_t VMEXIT_CR1_WRITE_STR[] = "VMEXIT_CR1_WRITE";
 554 static const uchar_t VMEXIT_CR2_WRITE_STR[] = "VMEXIT_CR2_WRITE";
 555 static const uchar_t VMEXIT_CR3_WRITE_STR[] = "VMEXIT_CR3_WRITE";
 556 static const uchar_t VMEXIT_CR4_WRITE_STR[] = "VMEXIT_CR4_WRITE";
 557 static const uchar_t VMEXIT_CR5_WRITE_STR[] = "VMEXIT_CR5_WRITE";
 558 static const uchar_t VMEXIT_CR6_WRITE_STR[] = "VMEXIT_CR6_WRITE";
 559 static const uchar_t VMEXIT_CR7_WRITE_STR[] = "VMEXIT_CR7_WRITE";
 560 static const uchar_t VMEXIT_CR8_WRITE_STR[] = "VMEXIT_CR8_WRITE";
 561 static const uchar_t VMEXIT_CR9_WRITE_STR[] = "VMEXIT_CR9_WRITE";
 562 static const uchar_t VMEXIT_CR10_WRITE_STR[] = "VMEXIT_CR10_WRITE";
 563 static const uchar_t VMEXIT_CR11_WRITE_STR[] = "VMEXIT_CR11_WRITE";
 564 static const uchar_t VMEXIT_CR12_WRITE_STR[] = "VMEXIT_CR12_WRITE";
 565 static const uchar_t VMEXIT_CR13_WRITE_STR[] = "VMEXIT_CR13_WRITE";
 566 static const uchar_t VMEXIT_CR14_WRITE_STR[] = "VMEXIT_CR14_WRITE";
 567 static const uchar_t VMEXIT_CR15_WRITE_STR[] = "VMEXIT_CR15_WRITE";
 568 static const uchar_t VMEXIT_DR0_READ_STR[] = "VMEXIT_DR0_READ";
 569 static const uchar_t VMEXIT_DR1_READ_STR[] = "VMEXIT_DR1_READ";
 570 static const uchar_t VMEXIT_DR2_READ_STR[] = "VMEXIT_DR2_READ";
 571 static const uchar_t VMEXIT_DR3_READ_STR[] = "VMEXIT_DR3_READ";
 572 static const uchar_t VMEXIT_DR4_READ_STR[] = "VMEXIT_DR4_READ";
 573 static const uchar_t VMEXIT_DR5_READ_STR[] = "VMEXIT_DR5_READ";
 574 static const uchar_t VMEXIT_DR6_READ_STR[] = "VMEXIT_DR6_READ";
 575 static const uchar_t VMEXIT_DR7_READ_STR[] = "VMEXIT_DR7_READ";
 576 static const uchar_t VMEXIT_DR8_READ_STR[] = "VMEXIT_DR8_READ";
 577 static const uchar_t VMEXIT_DR9_READ_STR[] = "VMEXIT_DR9_READ";
 578 static const uchar_t VMEXIT_DR10_READ_STR[] = "VMEXIT_DR10_READ";
 579 static const uchar_t VMEXIT_DR11_READ_STR[] = "VMEXIT_DR11_READ";
 580 static const uchar_t VMEXIT_DR12_READ_STR[] = "VMEXIT_DR12_READ";
 581 static const uchar_t VMEXIT_DR13_READ_STR[] = "VMEXIT_DR13_READ";
 582 static const uchar_t VMEXIT_DR14_READ_STR[] = "VMEXIT_DR14_READ";
 583 static const uchar_t VMEXIT_DR15_READ_STR[] = "VMEXIT_DR15_READ";
 584 static const uchar_t VMEXIT_DR0_WRITE_STR[] = "VMEXIT_DR0_WRITE";
 585 static const uchar_t VMEXIT_DR1_WRITE_STR[] = "VMEXIT_DR1_WRITE";
 586 static const uchar_t VMEXIT_DR2_WRITE_STR[] = "VMEXIT_DR2_WRITE";
 587 static const uchar_t VMEXIT_DR3_WRITE_STR[] = "VMEXIT_DR3_WRITE";
 588 static const uchar_t VMEXIT_DR4_WRITE_STR[] = "VMEXIT_DR4_WRITE";
 589 static const uchar_t VMEXIT_DR5_WRITE_STR[] = "VMEXIT_DR5_WRITE";
 590 static const uchar_t VMEXIT_DR6_WRITE_STR[] = "VMEXIT_DR6_WRITE";
 591 static const uchar_t VMEXIT_DR7_WRITE_STR[] = "VMEXIT_DR7_WRITE";
 592 static const uchar_t VMEXIT_DR8_WRITE_STR[] = "VMEXIT_DR8_WRITE";
 593 static const uchar_t VMEXIT_DR9_WRITE_STR[] = "VMEXIT_DR9_WRITE";
 594 static const uchar_t VMEXIT_DR10_WRITE_STR[] = "VMEXIT_DR10_WRITE";
 595 static const uchar_t VMEXIT_DR11_WRITE_STR[] = "VMEXIT_DR11_WRITE";
 596 static const uchar_t VMEXIT_DR12_WRITE_STR[] = "VMEXIT_DR12_WRITE";
 597 static const uchar_t VMEXIT_DR13_WRITE_STR[] = "VMEXIT_DR13_WRITE";
 598 static const uchar_t VMEXIT_DR14_WRITE_STR[] = "VMEXIT_DR14_WRITE";
 599 static const uchar_t VMEXIT_DR15_WRITE_STR[] = "VMEXIT_DR15_WRITE";
 600 static const uchar_t VMEXIT_EXCP0_STR[] = "VMEXIT_EXCP0";
 601 static const uchar_t VMEXIT_EXCP1_STR[] = "VMEXIT_EXCP1";
 602 static const uchar_t VMEXIT_EXCP2_STR[] = "VMEXIT_EXCP2";
 603 static const uchar_t VMEXIT_EXCP3_STR[] = "VMEXIT_EXCP3";
 604 static const uchar_t VMEXIT_EXCP4_STR[] = "VMEXIT_EXCP4";
 605 static const uchar_t VMEXIT_EXCP5_STR[] = "VMEXIT_EXCP5";
 606 static const uchar_t VMEXIT_EXCP6_STR[] = "VMEXIT_EXCP6";
 607 static const uchar_t VMEXIT_EXCP7_STR[] = "VMEXIT_EXCP7";
 608 static const uchar_t VMEXIT_EXCP8_STR[] = "VMEXIT_EXCP8";
 609 static const uchar_t VMEXIT_EXCP9_STR[] = "VMEXIT_EXCP9";
 610 static const uchar_t VMEXIT_EXCP10_STR[] = "VMEXIT_EXCP10";
 611 static const uchar_t VMEXIT_EXCP11_STR[] = "VMEXIT_EXCP11";
 612 static const uchar_t VMEXIT_EXCP12_STR[] = "VMEXIT_EXCP12";
 613 static const uchar_t VMEXIT_EXCP13_STR[] = "VMEXIT_EXCP13";
 614 static const uchar_t VMEXIT_EXCP14_STR[] = "VMEXIT_EXCP14";
 615 static const uchar_t VMEXIT_EXCP15_STR[] = "VMEXIT_EXCP15";
 616 static const uchar_t VMEXIT_EXCP16_STR[] = "VMEXIT_EXCP16";
 617 static const uchar_t VMEXIT_EXCP17_STR[] = "VMEXIT_EXCP17";
 618 static const uchar_t VMEXIT_EXCP18_STR[] = "VMEXIT_EXCP18";
 619 static const uchar_t VMEXIT_EXCP19_STR[] = "VMEXIT_EXCP19";
 620 static const uchar_t VMEXIT_EXCP20_STR[] = "VMEXIT_EXCP20";
 621 static const uchar_t VMEXIT_EXCP21_STR[] = "VMEXIT_EXCP21";
 622 static const uchar_t VMEXIT_EXCP22_STR[] = "VMEXIT_EXCP22";
 623 static const uchar_t VMEXIT_EXCP23_STR[] = "VMEXIT_EXCP23";
 624 static const uchar_t VMEXIT_EXCP24_STR[] = "VMEXIT_EXCP24";
 625 static const uchar_t VMEXIT_EXCP25_STR[] = "VMEXIT_EXCP25";
 626 static const uchar_t VMEXIT_EXCP26_STR[] = "VMEXIT_EXCP26";
 627 static const uchar_t VMEXIT_EXCP27_STR[] = "VMEXIT_EXCP27";
 628 static const uchar_t VMEXIT_EXCP28_STR[] = "VMEXIT_EXCP28";
 629 static const uchar_t VMEXIT_EXCP29_STR[] = "VMEXIT_EXCP29";
 630 static const uchar_t VMEXIT_EXCP30_STR[] = "VMEXIT_EXCP30";
 631 static const uchar_t VMEXIT_EXCP31_STR[] = "VMEXIT_EXCP31";
 632 static const uchar_t VMEXIT_INTR_STR[] = "VMEXIT_INTR";
 633 static const uchar_t VMEXIT_NMI_STR[] = "VMEXIT_NMI";
 634 static const uchar_t VMEXIT_SMI_STR[] = "VMEXIT_SMI";
 635 static const uchar_t VMEXIT_INIT_STR[] = "VMEXIT_INIT";
 636 static const uchar_t VMEXIT_VINITR_STR[] = "VMEXIT_VINITR";
 637 static const uchar_t VMEXIT_CR0_SEL_WRITE_STR[] = "VMEXIT_CR0_SEL_WRITE";
 638 static const uchar_t VMEXIT_IDTR_READ_STR[] = "VMEXIT_IDTR_READ";
 639 static const uchar_t VMEXIT_GDTR_READ_STR[] = "VMEXIT_GDTR_READ";
 640 static const uchar_t VMEXIT_LDTR_READ_STR[] = "VMEXIT_LDTR_READ";
 641 static const uchar_t VMEXIT_TR_READ_STR[] = "VMEXIT_TR_READ";
 642 static const uchar_t VMEXIT_IDTR_WRITE_STR[] = "VMEXIT_IDTR_WRITE";
 643 static const uchar_t VMEXIT_GDTR_WRITE_STR[] = "VMEXIT_GDTR_WRITE";
 644 static const uchar_t VMEXIT_LDTR_WRITE_STR[] = "VMEXIT_LDTR_WRITE";
 645 static const uchar_t VMEXIT_TR_WRITE_STR[] = "VMEXIT_TR_WRITE";
 646 static const uchar_t VMEXIT_RDTSC_STR[] = "VMEXIT_RDTSC";
 647 static const uchar_t VMEXIT_RDPMC_STR[] = "VMEXIT_RDPMC";
 648 static const uchar_t VMEXIT_PUSHF_STR[] = "VMEXIT_PUSHF";
 649 static const uchar_t VMEXIT_POPF_STR[] = "VMEXIT_POPF";
 650 static const uchar_t VMEXIT_CPUID_STR[] = "VMEXIT_CPUID";
 651 static const uchar_t VMEXIT_RSM_STR[] = "VMEXIT_RSM";
 652 static const uchar_t VMEXIT_IRET_STR[] = "VMEXIT_IRET";
 653 static const uchar_t VMEXIT_SWINT_STR[] = "VMEXIT_SWINT";
 654 static const uchar_t VMEXIT_INVD_STR[] = "VMEXIT_INVD";
 655 static const uchar_t VMEXIT_PAUSE_STR[] = "VMEXIT_PAUSE";
 656 static const uchar_t VMEXIT_HLT_STR[] = "VMEXIT_HLT";
 657 static const uchar_t VMEXIT_INVLPG_STR[] = "VMEXIT_INVLPG";
 658 static const uchar_t VMEXIT_INVLPGA_STR[] = "VMEXIT_INVLPGA";
 659 static const uchar_t VMEXIT_IOIO_STR[] = "VMEXIT_IOIO";
 660 static const uchar_t VMEXIT_MSR_STR[] = "VMEXIT_MSR";
 661 static const uchar_t VMEXIT_TASK_SWITCH_STR[] = "VMEXIT_TASK_SWITCH";
 662 static const uchar_t VMEXIT_FERR_FREEZE_STR[] = "VMEXIT_FERR_FREEZE";
 663 static const uchar_t VMEXIT_SHUTDOWN_STR[] = "VMEXIT_SHUTDOWN";
 664 static const uchar_t VMEXIT_VMRUN_STR[] = "VMEXIT_VMRUN";
 665 static const uchar_t VMEXIT_VMMCALL_STR[] = "VMEXIT_VMMCALL";
 666 static const uchar_t VMEXIT_VMLOAD_STR[] = "VMEXIT_VMLOAD";
 667 static const uchar_t VMEXIT_VMSAVE_STR[] = "VMEXIT_VMSAVE";
 668 static const uchar_t VMEXIT_STGI_STR[] = "VMEXIT_STGI";
 669 static const uchar_t VMEXIT_CLGI_STR[] = "VMEXIT_CLGI";
 670 static const uchar_t VMEXIT_SKINIT_STR[] = "VMEXIT_SKINIT";
 671 static const uchar_t VMEXIT_RDTSCP_STR[] = "VMEXIT_RDTSCP";
 672 static const uchar_t VMEXIT_ICEBP_STR[] = "VMEXIT_ICEBP";
 673 static const uchar_t VMEXIT_WBINVD_STR[] = "VMEXIT_WBINVD";
 674 static const uchar_t VMEXIT_MONITOR_STR[] = "VMEXIT_MONITOR";
 675 static const uchar_t VMEXIT_MWAIT_STR[] = "VMEXIT_MWAIT";
 676 static const uchar_t VMEXIT_MWAIT_CONDITIONAL_STR[] = "VMEXIT_MWAIT_CONDITIONAL";
 677 static const uchar_t VMEXIT_NPF_STR[] = "VMEXIT_NPF";
 678 static const uchar_t VMEXIT_INVALID_VMCB_STR[] = "VMEXIT_INVALID_VMCB";
 679
 680
 681
 682 const uchar_t * vmexit_code_to_str(uint_t exit_code) {
 683   switch(exit_code) {
 684   case VMEXIT_CR0_READ:
 685     return VMEXIT_CR0_READ_STR;
 686   case VMEXIT_CR1_READ:
 687     return VMEXIT_CR1_READ_STR;
 688   case VMEXIT_CR2_READ:
 689     return VMEXIT_CR2_READ_STR;
 690   case VMEXIT_CR3_READ:
 691     return VMEXIT_CR3_READ_STR;
 692   case VMEXIT_CR4_READ:
 693     return VMEXIT_CR4_READ_STR;
 694   case VMEXIT_CR5_READ:
 695     return VMEXIT_CR5_READ_STR;
 696   case VMEXIT_CR6_READ:
 697     return VMEXIT_CR6_READ_STR;
 698   case VMEXIT_CR7_READ:
 699     return VMEXIT_CR7_READ_STR;
 700   case VMEXIT_CR8_READ:
 701     return VMEXIT_CR8_READ_STR;
 702   case VMEXIT_CR9_READ:
 703     return VMEXIT_CR9_READ_STR;
 704   case VMEXIT_CR10_READ:
 705     return VMEXIT_CR10_READ_STR;
 706   case VMEXIT_CR11_READ:
 707     return VMEXIT_CR11_READ_STR;
 708   case VMEXIT_CR12_READ:
 709     return VMEXIT_CR12_READ_STR;
 710   case VMEXIT_CR13_READ:
 711     return VMEXIT_CR13_READ_STR;
 712   case VMEXIT_CR14_READ:
 713     return VMEXIT_CR14_READ_STR;
 714   case VMEXIT_CR15_READ:
 715     return VMEXIT_CR15_READ_STR;
 716   case VMEXIT_CR0_WRITE:
 717     return VMEXIT_CR0_WRITE_STR;
 718   case VMEXIT_CR1_WRITE:
 719     return VMEXIT_CR1_WRITE_STR;
 720   case VMEXIT_CR2_WRITE:
 721     return VMEXIT_CR2_WRITE_STR;
 722   case VMEXIT_CR3_WRITE:
 723     return VMEXIT_CR3_WRITE_STR;
 724   case VMEXIT_CR4_WRITE:
 725     return VMEXIT_CR4_WRITE_STR;
 726   case VMEXIT_CR5_WRITE:
 727     return VMEXIT_CR5_WRITE_STR;
 728   case VMEXIT_CR6_WRITE:
 729     return VMEXIT_CR6_WRITE_STR;
 730   case VMEXIT_CR7_WRITE:
 731     return VMEXIT_CR7_WRITE_STR;
 732   case VMEXIT_CR8_WRITE:
 733     return VMEXIT_CR8_WRITE_STR;
 734   case VMEXIT_CR9_WRITE:
 735     return VMEXIT_CR9_WRITE_STR;
 736   case VMEXIT_CR10_WRITE:
 737     return VMEXIT_CR10_WRITE_STR;
 738   case VMEXIT_CR11_WRITE:
 739     return VMEXIT_CR11_WRITE_STR;
 740   case VMEXIT_CR12_WRITE:
 741     return VMEXIT_CR12_WRITE_STR;
 742   case VMEXIT_CR13_WRITE:
 743     return VMEXIT_CR13_WRITE_STR;
 744   case VMEXIT_CR14_WRITE:
 745     return VMEXIT_CR14_WRITE_STR;
 746   case VMEXIT_CR15_WRITE:
 747     return VMEXIT_CR15_WRITE_STR;
 748   case VMEXIT_DR0_READ:
 749     return VMEXIT_DR0_READ_STR;
 750   case VMEXIT_DR1_READ:
 751     return VMEXIT_DR1_READ_STR;
 752   case VMEXIT_DR2_READ:
 753     return VMEXIT_DR2_READ_STR;
 754   case VMEXIT_DR3_READ:
 755     return VMEXIT_DR3_READ_STR;
 756   case VMEXIT_DR4_READ:
 757     return VMEXIT_DR4_READ_STR;
 758   case VMEXIT_DR5_READ:
 759     return VMEXIT_DR5_READ_STR;
 760   case VMEXIT_DR6_READ:
 761     return VMEXIT_DR6_READ_STR;
 762   case VMEXIT_DR7_READ:
 763     return VMEXIT_DR7_READ_STR;
 764   case VMEXIT_DR8_READ:
 765     return VMEXIT_DR8_READ_STR;
 766   case VMEXIT_DR9_READ:
 767     return VMEXIT_DR9_READ_STR;
 768   case VMEXIT_DR10_READ:
 769     return VMEXIT_DR10_READ_STR;
 770   case VMEXIT_DR11_READ:
 771     return VMEXIT_DR11_READ_STR;
 772   case VMEXIT_DR12_READ:
 773     return VMEXIT_DR12_READ_STR;
 774   case VMEXIT_DR13_READ:
 775     return VMEXIT_DR13_READ_STR;
 776   case VMEXIT_DR14_READ:
 777     return VMEXIT_DR14_READ_STR;
 778   case VMEXIT_DR15_READ:
 779     return VMEXIT_DR15_READ_STR;
 780   case VMEXIT_DR0_WRITE:
 781     return VMEXIT_DR0_WRITE_STR;
 782   case VMEXIT_DR1_WRITE:
 783     return VMEXIT_DR1_WRITE_STR;
 784   case VMEXIT_DR2_WRITE:
 785     return VMEXIT_DR2_WRITE_STR;
 786   case VMEXIT_DR3_WRITE:
 787     return VMEXIT_DR3_WRITE_STR;
 788   case VMEXIT_DR4_WRITE:
 789     return VMEXIT_DR4_WRITE_STR;
 790   case VMEXIT_DR5_WRITE:
 791     return VMEXIT_DR5_WRITE_STR;
 792   case VMEXIT_DR6_WRITE:
 793     return VMEXIT_DR6_WRITE_STR;
 794   case VMEXIT_DR7_WRITE:
 795     return VMEXIT_DR7_WRITE_STR;
 796   case VMEXIT_DR8_WRITE:
 797     return VMEXIT_DR8_WRITE_STR;
 798   case VMEXIT_DR9_WRITE:
 799     return VMEXIT_DR9_WRITE_STR;
 800   case VMEXIT_DR10_WRITE:
 801     return VMEXIT_DR10_WRITE_STR;
 802   case VMEXIT_DR11_WRITE:
 803     return VMEXIT_DR11_WRITE_STR;
 804   case VMEXIT_DR12_WRITE:
 805     return VMEXIT_DR12_WRITE_STR;
 806   case VMEXIT_DR13_WRITE:
 807     return VMEXIT_DR13_WRITE_STR;
 808   case VMEXIT_DR14_WRITE:
 809     return VMEXIT_DR14_WRITE_STR;
 810   case VMEXIT_DR15_WRITE:
 811     return VMEXIT_DR15_WRITE_STR;
 812   case VMEXIT_EXCP0:
 813     return VMEXIT_EXCP0_STR;
 814   case VMEXIT_EXCP1:
 815     return VMEXIT_EXCP1_STR;
 816   case VMEXIT_EXCP2:
 817     return VMEXIT_EXCP2_STR;
 818   case VMEXIT_EXCP3:
 819     return VMEXIT_EXCP3_STR;
 820   case VMEXIT_EXCP4:
 821     return VMEXIT_EXCP4_STR;
 822   case VMEXIT_EXCP5:
 823     return VMEXIT_EXCP5_STR;
 824   case VMEXIT_EXCP6:
 825     return VMEXIT_EXCP6_STR;
 826   case VMEXIT_EXCP7:
 827     return VMEXIT_EXCP7_STR;
 828   case VMEXIT_EXCP8:
 829     return VMEXIT_EXCP8_STR;
 830   case VMEXIT_EXCP9:
 831     return VMEXIT_EXCP9_STR;
 832   case VMEXIT_EXCP10:
 833     return VMEXIT_EXCP10_STR;
 834   case VMEXIT_EXCP11:
 835     return VMEXIT_EXCP11_STR;
 836   case VMEXIT_EXCP12:
 837     return VMEXIT_EXCP12_STR;
 838   case VMEXIT_EXCP13:
 839     return VMEXIT_EXCP13_STR;
 840   case VMEXIT_EXCP14:
 841     return VMEXIT_EXCP14_STR;
 842   case VMEXIT_EXCP15:
 843     return VMEXIT_EXCP15_STR;
 844   case VMEXIT_EXCP16:
 845     return VMEXIT_EXCP16_STR;
 846   case VMEXIT_EXCP17:
 847     return VMEXIT_EXCP17_STR;
 848   case VMEXIT_EXCP18:
 849     return VMEXIT_EXCP18_STR;
 850   case VMEXIT_EXCP19:
 851     return VMEXIT_EXCP19_STR;
 852   case VMEXIT_EXCP20:
 853     return VMEXIT_EXCP20_STR;
 854   case VMEXIT_EXCP21:
 855     return VMEXIT_EXCP21_STR;
 856   case VMEXIT_EXCP22:
 857     return VMEXIT_EXCP22_STR;
 858   case VMEXIT_EXCP23:
 859     return VMEXIT_EXCP23_STR;
 860   case VMEXIT_EXCP24:
 861     return VMEXIT_EXCP24_STR;
 862   case VMEXIT_EXCP25:
 863     return VMEXIT_EXCP25_STR;
 864   case VMEXIT_EXCP26:
 865     return VMEXIT_EXCP26_STR;
 866   case VMEXIT_EXCP27:
 867     return VMEXIT_EXCP27_STR;
 868   case VMEXIT_EXCP28:
 869     return VMEXIT_EXCP28_STR;
 870   case VMEXIT_EXCP29:
 871     return VMEXIT_EXCP29_STR;
 872   case VMEXIT_EXCP30:
 873     return VMEXIT_EXCP30_STR;
 874   case VMEXIT_EXCP31:
 875     return VMEXIT_EXCP31_STR;
 876   case VMEXIT_INTR:
 877     return VMEXIT_INTR_STR;
 878   case VMEXIT_NMI:
 879     return VMEXIT_NMI_STR;
 880   case VMEXIT_SMI:
 881     return VMEXIT_SMI_STR;
 882   case VMEXIT_INIT:
 883     return VMEXIT_INIT_STR;
 884   case VMEXIT_VINITR:
 885     return VMEXIT_VINITR_STR;
 886   case VMEXIT_CR0_SEL_WRITE:
 887     return VMEXIT_CR0_SEL_WRITE_STR;
 888   case VMEXIT_IDTR_READ:
 889     return VMEXIT_IDTR_READ_STR;
 890   case VMEXIT_GDTR_READ:
 891     return VMEXIT_GDTR_READ_STR;
 892   case VMEXIT_LDTR_READ:
 893     return VMEXIT_LDTR_READ_STR;
 894   case VMEXIT_TR_READ:
 895     return VMEXIT_TR_READ_STR;
 896   case VMEXIT_IDTR_WRITE:
 897     return VMEXIT_IDTR_WRITE_STR;
 898   case VMEXIT_GDTR_WRITE:
 899     return VMEXIT_GDTR_WRITE_STR;
 900   case VMEXIT_LDTR_WRITE:
 901     return VMEXIT_LDTR_WRITE_STR;
 902   case VMEXIT_TR_WRITE:
 903     return VMEXIT_TR_WRITE_STR;
 904   case VMEXIT_RDTSC:
 905     return VMEXIT_RDTSC_STR;
 906   case VMEXIT_RDPMC:
 907     return VMEXIT_RDPMC_STR;
 908   case VMEXIT_PUSHF:
 909     return VMEXIT_PUSHF_STR;
 910   case VMEXIT_POPF:
 911     return VMEXIT_POPF_STR;
 912   case VMEXIT_CPUID:
 913     return VMEXIT_CPUID_STR;
 914   case VMEXIT_RSM:
 915     return VMEXIT_RSM_STR;
 916   case VMEXIT_IRET:
 917     return VMEXIT_IRET_STR;
 918   case VMEXIT_SWINT:
 919     return VMEXIT_SWINT_STR;
 920   case VMEXIT_INVD:
 921     return VMEXIT_INVD_STR;
 922   case VMEXIT_PAUSE:
 923     return VMEXIT_PAUSE_STR;
 924   case VMEXIT_HLT:
 925     return VMEXIT_HLT_STR;
 926   case VMEXIT_INVLPG:
 927     return VMEXIT_INVLPG_STR;
 928   case VMEXIT_INVLPGA:
 929     return VMEXIT_INVLPGA_STR;
 930   case VMEXIT_IOIO:
 931     return VMEXIT_IOIO_STR;
 932   case VMEXIT_MSR:
 933     return VMEXIT_MSR_STR;
 934   case VMEXIT_TASK_SWITCH:
 935     return VMEXIT_TASK_SWITCH_STR;
 936   case VMEXIT_FERR_FREEZE:
 937     return VMEXIT_FERR_FREEZE_STR;
 938   case VMEXIT_SHUTDOWN:
 939     return VMEXIT_SHUTDOWN_STR;
 940   case VMEXIT_VMRUN:
 941     return VMEXIT_VMRUN_STR;
 942   case VMEXIT_VMMCALL:
 943     return VMEXIT_VMMCALL_STR;
 944   case VMEXIT_VMLOAD:
 945     return VMEXIT_VMLOAD_STR;
 946   case VMEXIT_VMSAVE:
 947     return VMEXIT_VMSAVE_STR;
 948   case VMEXIT_STGI:
 949     return VMEXIT_STGI_STR;
 950   case VMEXIT_CLGI:
 951     return VMEXIT_CLGI_STR;
 952   case VMEXIT_SKINIT:
 953     return VMEXIT_SKINIT_STR;
 954   case VMEXIT_RDTSCP:
 955     return VMEXIT_RDTSCP_STR;
 956   case VMEXIT_ICEBP:
 957     return VMEXIT_ICEBP_STR;
 958   case VMEXIT_WBINVD:
 959     return VMEXIT_WBINVD_STR;
 960   case VMEXIT_MONITOR:
 961     return VMEXIT_MONITOR_STR;
 962   case VMEXIT_MWAIT:
 963     return VMEXIT_MWAIT_STR;
 964   case VMEXIT_MWAIT_CONDITIONAL:
 965     return VMEXIT_MWAIT_CONDITIONAL_STR;
 966   case VMEXIT_NPF:
 967     return VMEXIT_NPF_STR;
 968   case VMEXIT_INVALID_VMCB:
 969     return VMEXIT_INVALID_VMCB_STR;
 970   }
 971   return NULL;
 972 }