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 #include <palacios/vmm_profiler.h>
  34 #include <palacios/vmm_hypercall.h>
  35 #include <palacios/vmm_direct_paging.h>
  36
  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     // Update the high level state
  48     info->rip = guest_state->rip;
  49     info->vm_regs.rsp = guest_state->rsp;
  50     info->vm_regs.rax = guest_state->rax;
  51
  52     info->cpl = guest_state->cpl;
  53
  54     info->ctrl_regs.cr0 = guest_state->cr0;
  55     info->ctrl_regs.cr2 = guest_state->cr2;
  56     info->ctrl_regs.cr3 = guest_state->cr3;
  57     info->ctrl_regs.cr4 = guest_state->cr4;
  58     info->dbg_regs.dr6 = guest_state->dr6;
  59     info->dbg_regs.dr7 = guest_state->dr7;
  60     info->ctrl_regs.cr8 = guest_ctrl->guest_ctrl.V_TPR;
  61     info->ctrl_regs.rflags = guest_state->rflags;
  62     info->ctrl_regs.efer = guest_state->efer;
  63
  64     v3_get_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
  65     info->cpu_mode = v3_get_vm_cpu_mode(info);
  66     info->mem_mode = v3_get_vm_mem_mode(info);
  67
  68     exit_code = guest_ctrl->exit_code;
  69
  70     //    PrintDebug("SVM Exit: %s (rip=%p) (info1=%p)\n", vmexit_code_to_str(exit_code),
  71     //         (void *)(addr_t)info->rip, (void *)(addr_t)guest_ctrl->exit_info1);
  72
  73     if ((info->intr_state.irq_pending == 1) && (guest_ctrl->guest_ctrl.V_IRQ == 0)) {
  74
  75 #ifdef DEBUG_INTERRUPTS
  76         PrintDebug("INTAK cycle completed for irq %d\n", info->intr_state.irq_vector);
  77 #endif
  78
  79         info->intr_state.irq_started = 1;
  80         info->intr_state.irq_pending = 0;
  81
  82         v3_injecting_intr(info, info->intr_state.irq_vector, EXTERNAL_IRQ);
  83     }
  84
  85     if ((info->intr_state.irq_started == 1) && (guest_ctrl->exit_int_info.valid == 0)) {
  86 #ifdef DEBUG_INTERRUPTS
  87         PrintDebug("Interrupt %d taken by guest\n", info->intr_state.irq_vector);
  88 #endif
  89
  90         // Interrupt was taken fully vectored
  91         info->intr_state.irq_started = 0;
  92
  93     } else {
  94 #ifdef DEBUG_INTERRUPTS
  95         PrintDebug("EXIT INT INFO is set (vec=%d)\n", guest_ctrl->exit_int_info.vector);
  96 #endif
  97     }
  98
  99
 100     // Disable printing io exits due to bochs debug messages
 101     //if (!((exit_code == VMEXIT_IOIO) && ((ushort_t)(guest_ctrl->exit_info1 >> 16) == 0x402))) {
 102
 103     if ((0) && (exit_code <= VMEXIT_EXCP14)) {
 104         uchar_t instr[32];
 105         int ret;
 106         // Dump out the instr stream
 107
 108         //PrintDebug("RIP: %x\n", guest_state->rip);
 109         PrintDebug("\n\n\nRIP Linear: %p\n", (void *)get_addr_linear(info, info->rip, &(info->segments.cs)));
 110
 111         v3_print_GPRs(info);
 112         v3_print_ctrl_regs(info);
 113
 114
 115         // OK, now we will read the instruction
 116         // The only difference between PROTECTED and PROTECTED_PG is whether we read
 117         // from guest_pa or guest_va
 118         if (info->mem_mode == PHYSICAL_MEM) {
 119             // The real rip address is actually a combination of the rip + CS base
 120             ret = read_guest_pa_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 32, instr);
 121         } else {
 122             ret = read_guest_va_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 32, instr);
 123         }
 124
 125
 126         if (ret != 32) {
 127             // I think we should inject a GPF into the guest
 128             PrintDebug("Could not read instruction (ret=%d)\n", ret);
 129         } else {
 130             PrintDebug("Instr Stream:\n");
 131             PrintTraceMemDump(instr, 32);
 132         }
 133     }
 134
 135
 136
 137     if (info->enable_profiler) {
 138         rdtscll(info->profiler.start_time);
 139     }
 140
 141
 142     //PrintDebug("SVM Returned: Exit Code: %x\n",exit_code);
 143
 144     switch (exit_code) {
 145         case VMEXIT_IOIO: {
 146             struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
 147
 148             if (io_info->type == 0) {
 149                 if (io_info->str) {
 150
 151                     if (v3_handle_svm_io_outs(info) == -1 ) {
 152                         return -1;
 153                     }
 154                 } else {
 155                     if (v3_handle_svm_io_out(info) == -1) {
 156                         return -1;
 157                     }
 158                 }
 159
 160             } else {
 161
 162                 if (io_info->str) {
 163                     if (v3_handle_svm_io_ins(info) == -1) {
 164                         return -1;
 165                     }
 166                 } else {
 167                     if (v3_handle_svm_io_in(info) == -1) {
 168                         return -1;
 169                     }
 170                 }
 171             }
 172             break;
 173         }
 174         case VMEXIT_MSR:
 175             if (guest_ctrl->exit_info1 == 0) {
 176                 if (v3_handle_msr_read(info) == -1) {
 177                     return -1;
 178                 }
 179             } else if (guest_ctrl->exit_info1 == 1) {
 180                 if (v3_handle_msr_write(info) == -1) {
 181                     return -1;
 182                 }
 183             } else {
 184                 PrintError("Invalid MSR Operation\n");
 185                 return -1;
 186             }
 187
 188             break;
 189         case VMEXIT_CR0_WRITE:
 190 #ifdef DEBUG_CTRL_REGS
 191             PrintDebug("CR0 Write\n");
 192 #endif
 193             if (v3_handle_cr0_write(info) == -1) {
 194                 return -1;
 195             }
 196             break;
 197         case VMEXIT_CR0_READ:
 198 #ifdef DEBUG_CTRL_REGS
 199             PrintDebug("CR0 Read\n");
 200 #endif
 201             if (v3_handle_cr0_read(info) == -1) {
 202                 return -1;
 203             }
 204             break;
 205         case VMEXIT_CR3_WRITE:
 206 #ifdef DEBUG_CTRL_REGS
 207             PrintDebug("CR3 Write\n");
 208 #endif
 209             if (v3_handle_cr3_write(info) == -1) {
 210                 return -1;
 211             }
 212             break;
 213         case  VMEXIT_CR3_READ:
 214 #ifdef DEBUG_CTRL_REGS
 215             PrintDebug("CR3 Read\n");
 216 #endif
 217             if (v3_handle_cr3_read(info) == -1) {
 218                 return -1;
 219             }
 220             break;
 221         case VMEXIT_CR4_WRITE:
 222 #ifdef DEBUG_CTRL_REGS
 223             PrintDebug("CR4 Write\n");
 224 #endif
 225             if (v3_handle_cr4_write(info) == -1) {
 226                 return -1;
 227             }
 228             break;
 229         case  VMEXIT_CR4_READ:
 230 #ifdef DEBUG_CTRL_REGS
 231             PrintDebug("CR4 Read\n");
 232 #endif
 233             if (v3_handle_cr4_read(info) == -1) {
 234                 return -1;
 235             }
 236             break;
 237         case VMEXIT_EXCP14: {
 238             addr_t fault_addr = guest_ctrl->exit_info2;
 239             pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1);
 240 #ifdef DEBUG_SHADOW_PAGING
 241             PrintDebug("PageFault at %p (error=%d)\n",
 242                        (void *)fault_addr, *(uint_t *)error_code);
 243 #endif
 244             if (info->shdw_pg_mode == SHADOW_PAGING) {
 245                 if (v3_handle_shadow_pagefault(info, fault_addr, *error_code) == -1) {
 246                     return -1;
 247                 }
 248             } else {
 249                 PrintError("Page fault in un implemented paging mode\n");
 250                 return -1;
 251             }
 252             break;
 253         }
 254         case VMEXIT_NPF: {
 255             addr_t fault_addr = guest_ctrl->exit_info2;
 256             pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1);
 257
 258             if (info->shdw_pg_mode == NESTED_PAGING) {
 259                 if (v3_handle_nested_pagefault(info, fault_addr, *error_code) == -1) {
 260                     return -1;
 261                 }
 262             } else {
 263                 PrintError("Currently unhandled Nested Page Fault\n");
 264                 return -1;
 265                     }
 266             break;
 267             }
 268         case VMEXIT_INVLPG:
 269             if (info->shdw_pg_mode == SHADOW_PAGING) {
 270 #ifdef DEBUG_SHADOW_PAGING
 271                 PrintDebug("Invlpg\n");
 272 #endif
 273                 if (v3_handle_shadow_invlpg(info) == -1) {
 274                     return -1;
 275                 }
 276             }
 277             break;
 278         case VMEXIT_VMMCALL:
 279             /*
 280              * Hypercall
 281              */
 282
 283             if (v3_handle_hypercall(info) == -1) {
 284                 return -1;
 285             }
 286
 287             // VMMCALL is a 3 byte op
 288             info->rip += 3;
 289             break;
 290         case VMEXIT_INTR:
 291             // handled by interrupt dispatch earlier
 292             break;
 293         case VMEXIT_SMI:
 294             //   handle_svm_smi(info); // ignored for now
 295             break;
 296         case VMEXIT_HLT:
 297 #ifdef DEBUG_HALT
 298             PrintDebug("Guest halted\n");
 299 #endif
 300             if (v3_handle_svm_halt(info) == -1) {
 301                 return -1;
 302             }
 303             break;
 304         case VMEXIT_PAUSE:
 305             //PrintDebug("Guest paused\n");
 306             if (v3_handle_svm_pause(info) == -1) {
 307                 return -1;
 308             }
 309             break;
 310         case VMEXIT_WBINVD:
 311 #ifdef DEBUG_EMULATOR
 312             PrintDebug("WBINVD\n");
 313 #endif
 314             if (v3_handle_svm_wbinvd(info) == -1) {
 315                 return -1;
 316             }
 317             break;
 318
 319
 320
 321
 322
 323             /* Exits Following this line are NOT HANDLED */
 324             /*=======================================================================*/
 325
 326         default: {
 327
 328             addr_t rip_addr;
 329
 330             PrintDebug("Unhandled SVM Exit: %s\n", vmexit_code_to_str(exit_code));
 331
 332             rip_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
 333
 334
 335             PrintError("SVM Returned:(VMCB=%p)\n", (void *)(info->vmm_data));
 336             PrintError("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
 337             PrintError("RIP Linear: %p\n", (void *)(addr_t)(rip_addr));
 338
 339             PrintError("SVM Returned: Exit Code: %p\n", (void *)(addr_t)exit_code);
 340
 341             PrintError("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
 342             PrintError("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
 343
 344             PrintError("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
 345             PrintError("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
 346
 347
 348             if (info->shdw_pg_mode == SHADOW_PAGING) {
 349                 //      PrintHostPageTables(info, info->ctrl_regs.cr3);
 350                 //PrintGuestPageTables(info, info->shdw_pg_state.guest_cr3);
 351             }
 352
 353             return -1;
 354         }
 355     }
 356     // END OF SWITCH (EXIT_CODE)
 357
 358
 359     if (info->enable_profiler) {
 360         rdtscll(info->profiler.end_time);
 361         v3_profile_exit(info, exit_code);
 362     }
 363
 364
 365
 366     if (v3_excp_pending(info)) {
 367         uint_t excp = v3_get_excp_number(info);
 368
 369         guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION;
 370
 371         if (info->excp_state.excp_error_code_valid) {
 372             guest_ctrl->EVENTINJ.error_code = info->excp_state.excp_error_code;
 373             guest_ctrl->EVENTINJ.ev = 1;
 374 #ifdef DEBUG_INTERRUPTS
 375             PrintDebug("Injecting exception %d with error code %x\n", excp, guest_ctrl->EVENTINJ.error_code);
 376 #endif
 377         }
 378
 379         guest_ctrl->EVENTINJ.vector = excp;
 380
 381         guest_ctrl->EVENTINJ.valid = 1;
 382 #ifdef DEBUG_INTERRUPTS
 383         PrintDebug("Injecting Exception %d (EIP=%p)\n",
 384                    guest_ctrl->EVENTINJ.vector,
 385                    (void *)(addr_t)info->rip);
 386 #endif
 387         v3_injecting_excp(info, excp);
 388     } else if (info->intr_state.irq_started == 1) {
 389 #ifdef DEBUG_INTERRUPTS
 390         PrintDebug("IRQ pending from previous injection\n");
 391 #endif
 392         guest_ctrl->guest_ctrl.V_IRQ = 1;
 393         guest_ctrl->guest_ctrl.V_INTR_VECTOR = info->intr_state.irq_vector;
 394         guest_ctrl->guest_ctrl.V_IGN_TPR = 1;
 395         guest_ctrl->guest_ctrl.V_INTR_PRIO = 0xf;
 396
 397     } else if (v3_intr_pending(info)) {
 398
 399         switch (v3_get_intr_type(info)) {
 400             case EXTERNAL_IRQ: {
 401                 uint_t irq = v3_get_intr_number(info);
 402
 403                 // check to see if ==-1 (non exists)
 404
 405
 406                 guest_ctrl->guest_ctrl.V_IRQ = 1;
 407                 guest_ctrl->guest_ctrl.V_INTR_VECTOR = irq;
 408                 guest_ctrl->guest_ctrl.V_IGN_TPR = 1;
 409                 guest_ctrl->guest_ctrl.V_INTR_PRIO = 0xf;
 410
 411 #ifdef DEBUG_INTERRUPTS
 412                 PrintDebug("Injecting Interrupt %d (EIP=%p)\n",
 413                            guest_ctrl->guest_ctrl.V_INTR_VECTOR,
 414                            (void *)(addr_t)info->rip);
 415 #endif
 416
 417                 info->intr_state.irq_pending = 1;
 418                 info->intr_state.irq_vector = irq;
 419
 420                 break;
 421             }
 422             case NMI:
 423                 guest_ctrl->EVENTINJ.type = SVM_INJECTION_NMI;
 424                 break;
 425             case SOFTWARE_INTR:
 426                 guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
 427                 break;
 428             case VIRTUAL_INTR:
 429                 guest_ctrl->EVENTINJ.type = SVM_INJECTION_VIRTUAL_INTR;
 430                 break;
 431
 432             case INVALID_INTR:
 433             default:
 434                 PrintError("Attempted to issue an invalid interrupt\n");
 435                 return -1;
 436         }
 437
 438     } else {
 439         //PrintDebug("Not interrupts or exceptions pending\n");
 440     }
 441
 442
 443     guest_state->cr0 = info->ctrl_regs.cr0;
 444     guest_state->cr2 = info->ctrl_regs.cr2;
 445     guest_state->cr3 = info->ctrl_regs.cr3;
 446     guest_state->cr4 = info->ctrl_regs.cr4;
 447     guest_state->dr6 = info->dbg_regs.dr6;
 448     guest_state->dr7 = info->dbg_regs.dr7;
 449     guest_ctrl->guest_ctrl.V_TPR = info->ctrl_regs.cr8 & 0xff;
 450     guest_state->rflags = info->ctrl_regs.rflags;
 451     guest_state->efer = info->ctrl_regs.efer;
 452
 453     guest_state->cpl = info->cpl;
 454
 455     guest_state->rax = info->vm_regs.rax;
 456     guest_state->rip = info->rip;
 457     guest_state->rsp = info->vm_regs.rsp;
 458
 459
 460     v3_set_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
 461
 462     if (exit_code == VMEXIT_INTR) {
 463         //PrintDebug("INTR ret IP = %x\n", guest_state->rip);
 464     }
 465
 466     return 0;
 467 }
 468
 469
 470 static const char VMEXIT_CR0_READ_STR[] = "VMEXIT_CR0_READ";
 471 static const char VMEXIT_CR1_READ_STR[] = "VMEXIT_CR1_READ";
 472 static const char VMEXIT_CR2_READ_STR[] = "VMEXIT_CR2_READ";
 473 static const char VMEXIT_CR3_READ_STR[] = "VMEXIT_CR3_READ";
 474 static const char VMEXIT_CR4_READ_STR[] = "VMEXIT_CR4_READ";
 475 static const char VMEXIT_CR5_READ_STR[] = "VMEXIT_CR5_READ";
 476 static const char VMEXIT_CR6_READ_STR[] = "VMEXIT_CR6_READ";
 477 static const char VMEXIT_CR7_READ_STR[] = "VMEXIT_CR7_READ";
 478 static const char VMEXIT_CR8_READ_STR[] = "VMEXIT_CR8_READ";
 479 static const char VMEXIT_CR9_READ_STR[] = "VMEXIT_CR9_READ";
 480 static const char VMEXIT_CR10_READ_STR[] = "VMEXIT_CR10_READ";
 481 static const char VMEXIT_CR11_READ_STR[] = "VMEXIT_CR11_READ";
 482 static const char VMEXIT_CR12_READ_STR[] = "VMEXIT_CR12_READ";
 483 static const char VMEXIT_CR13_READ_STR[] = "VMEXIT_CR13_READ";
 484 static const char VMEXIT_CR14_READ_STR[] = "VMEXIT_CR14_READ";
 485 static const char VMEXIT_CR15_READ_STR[] = "VMEXIT_CR15_READ";
 486 static const char VMEXIT_CR0_WRITE_STR[] = "VMEXIT_CR0_WRITE";
 487 static const char VMEXIT_CR1_WRITE_STR[] = "VMEXIT_CR1_WRITE";
 488 static const char VMEXIT_CR2_WRITE_STR[] = "VMEXIT_CR2_WRITE";
 489 static const char VMEXIT_CR3_WRITE_STR[] = "VMEXIT_CR3_WRITE";
 490 static const char VMEXIT_CR4_WRITE_STR[] = "VMEXIT_CR4_WRITE";
 491 static const char VMEXIT_CR5_WRITE_STR[] = "VMEXIT_CR5_WRITE";
 492 static const char VMEXIT_CR6_WRITE_STR[] = "VMEXIT_CR6_WRITE";
 493 static const char VMEXIT_CR7_WRITE_STR[] = "VMEXIT_CR7_WRITE";
 494 static const char VMEXIT_CR8_WRITE_STR[] = "VMEXIT_CR8_WRITE";
 495 static const char VMEXIT_CR9_WRITE_STR[] = "VMEXIT_CR9_WRITE";
 496 static const char VMEXIT_CR10_WRITE_STR[] = "VMEXIT_CR10_WRITE";
 497 static const char VMEXIT_CR11_WRITE_STR[] = "VMEXIT_CR11_WRITE";
 498 static const char VMEXIT_CR12_WRITE_STR[] = "VMEXIT_CR12_WRITE";
 499 static const char VMEXIT_CR13_WRITE_STR[] = "VMEXIT_CR13_WRITE";
 500 static const char VMEXIT_CR14_WRITE_STR[] = "VMEXIT_CR14_WRITE";
 501 static const char VMEXIT_CR15_WRITE_STR[] = "VMEXIT_CR15_WRITE";
 502 static const char VMEXIT_DR0_READ_STR[] = "VMEXIT_DR0_READ";
 503 static const char VMEXIT_DR1_READ_STR[] = "VMEXIT_DR1_READ";
 504 static const char VMEXIT_DR2_READ_STR[] = "VMEXIT_DR2_READ";
 505 static const char VMEXIT_DR3_READ_STR[] = "VMEXIT_DR3_READ";
 506 static const char VMEXIT_DR4_READ_STR[] = "VMEXIT_DR4_READ";
 507 static const char VMEXIT_DR5_READ_STR[] = "VMEXIT_DR5_READ";
 508 static const char VMEXIT_DR6_READ_STR[] = "VMEXIT_DR6_READ";
 509 static const char VMEXIT_DR7_READ_STR[] = "VMEXIT_DR7_READ";
 510 static const char VMEXIT_DR8_READ_STR[] = "VMEXIT_DR8_READ";
 511 static const char VMEXIT_DR9_READ_STR[] = "VMEXIT_DR9_READ";
 512 static const char VMEXIT_DR10_READ_STR[] = "VMEXIT_DR10_READ";
 513 static const char VMEXIT_DR11_READ_STR[] = "VMEXIT_DR11_READ";
 514 static const char VMEXIT_DR12_READ_STR[] = "VMEXIT_DR12_READ";
 515 static const char VMEXIT_DR13_READ_STR[] = "VMEXIT_DR13_READ";
 516 static const char VMEXIT_DR14_READ_STR[] = "VMEXIT_DR14_READ";
 517 static const char VMEXIT_DR15_READ_STR[] = "VMEXIT_DR15_READ";
 518 static const char VMEXIT_DR0_WRITE_STR[] = "VMEXIT_DR0_WRITE";
 519 static const char VMEXIT_DR1_WRITE_STR[] = "VMEXIT_DR1_WRITE";
 520 static const char VMEXIT_DR2_WRITE_STR[] = "VMEXIT_DR2_WRITE";
 521 static const char VMEXIT_DR3_WRITE_STR[] = "VMEXIT_DR3_WRITE";
 522 static const char VMEXIT_DR4_WRITE_STR[] = "VMEXIT_DR4_WRITE";
 523 static const char VMEXIT_DR5_WRITE_STR[] = "VMEXIT_DR5_WRITE";
 524 static const char VMEXIT_DR6_WRITE_STR[] = "VMEXIT_DR6_WRITE";
 525 static const char VMEXIT_DR7_WRITE_STR[] = "VMEXIT_DR7_WRITE";
 526 static const char VMEXIT_DR8_WRITE_STR[] = "VMEXIT_DR8_WRITE";
 527 static const char VMEXIT_DR9_WRITE_STR[] = "VMEXIT_DR9_WRITE";
 528 static const char VMEXIT_DR10_WRITE_STR[] = "VMEXIT_DR10_WRITE";
 529 static const char VMEXIT_DR11_WRITE_STR[] = "VMEXIT_DR11_WRITE";
 530 static const char VMEXIT_DR12_WRITE_STR[] = "VMEXIT_DR12_WRITE";
 531 static const char VMEXIT_DR13_WRITE_STR[] = "VMEXIT_DR13_WRITE";
 532 static const char VMEXIT_DR14_WRITE_STR[] = "VMEXIT_DR14_WRITE";
 533 static const char VMEXIT_DR15_WRITE_STR[] = "VMEXIT_DR15_WRITE";
 534 static const char VMEXIT_EXCP0_STR[] = "VMEXIT_EXCP0";
 535 static const char VMEXIT_EXCP1_STR[] = "VMEXIT_EXCP1";
 536 static const char VMEXIT_EXCP2_STR[] = "VMEXIT_EXCP2";
 537 static const char VMEXIT_EXCP3_STR[] = "VMEXIT_EXCP3";
 538 static const char VMEXIT_EXCP4_STR[] = "VMEXIT_EXCP4";
 539 static const char VMEXIT_EXCP5_STR[] = "VMEXIT_EXCP5";
 540 static const char VMEXIT_EXCP6_STR[] = "VMEXIT_EXCP6";
 541 static const char VMEXIT_EXCP7_STR[] = "VMEXIT_EXCP7";
 542 static const char VMEXIT_EXCP8_STR[] = "VMEXIT_EXCP8";
 543 static const char VMEXIT_EXCP9_STR[] = "VMEXIT_EXCP9";
 544 static const char VMEXIT_EXCP10_STR[] = "VMEXIT_EXCP10";
 545 static const char VMEXIT_EXCP11_STR[] = "VMEXIT_EXCP11";
 546 static const char VMEXIT_EXCP12_STR[] = "VMEXIT_EXCP12";
 547 static const char VMEXIT_EXCP13_STR[] = "VMEXIT_EXCP13";
 548 static const char VMEXIT_EXCP14_STR[] = "VMEXIT_EXCP14";
 549 static const char VMEXIT_EXCP15_STR[] = "VMEXIT_EXCP15";
 550 static const char VMEXIT_EXCP16_STR[] = "VMEXIT_EXCP16";
 551 static const char VMEXIT_EXCP17_STR[] = "VMEXIT_EXCP17";
 552 static const char VMEXIT_EXCP18_STR[] = "VMEXIT_EXCP18";
 553 static const char VMEXIT_EXCP19_STR[] = "VMEXIT_EXCP19";
 554 static const char VMEXIT_EXCP20_STR[] = "VMEXIT_EXCP20";
 555 static const char VMEXIT_EXCP21_STR[] = "VMEXIT_EXCP21";
 556 static const char VMEXIT_EXCP22_STR[] = "VMEXIT_EXCP22";
 557 static const char VMEXIT_EXCP23_STR[] = "VMEXIT_EXCP23";
 558 static const char VMEXIT_EXCP24_STR[] = "VMEXIT_EXCP24";
 559 static const char VMEXIT_EXCP25_STR[] = "VMEXIT_EXCP25";
 560 static const char VMEXIT_EXCP26_STR[] = "VMEXIT_EXCP26";
 561 static const char VMEXIT_EXCP27_STR[] = "VMEXIT_EXCP27";
 562 static const char VMEXIT_EXCP28_STR[] = "VMEXIT_EXCP28";
 563 static const char VMEXIT_EXCP29_STR[] = "VMEXIT_EXCP29";
 564 static const char VMEXIT_EXCP30_STR[] = "VMEXIT_EXCP30";
 565 static const char VMEXIT_EXCP31_STR[] = "VMEXIT_EXCP31";
 566 static const char VMEXIT_INTR_STR[] = "VMEXIT_INTR";
 567 static const char VMEXIT_NMI_STR[] = "VMEXIT_NMI";
 568 static const char VMEXIT_SMI_STR[] = "VMEXIT_SMI";
 569 static const char VMEXIT_INIT_STR[] = "VMEXIT_INIT";
 570 static const char VMEXIT_VINITR_STR[] = "VMEXIT_VINITR";
 571 static const char VMEXIT_CR0_SEL_WRITE_STR[] = "VMEXIT_CR0_SEL_WRITE";
 572 static const char VMEXIT_IDTR_READ_STR[] = "VMEXIT_IDTR_READ";
 573 static const char VMEXIT_GDTR_READ_STR[] = "VMEXIT_GDTR_READ";
 574 static const char VMEXIT_LDTR_READ_STR[] = "VMEXIT_LDTR_READ";
 575 static const char VMEXIT_TR_READ_STR[] = "VMEXIT_TR_READ";
 576 static const char VMEXIT_IDTR_WRITE_STR[] = "VMEXIT_IDTR_WRITE";
 577 static const char VMEXIT_GDTR_WRITE_STR[] = "VMEXIT_GDTR_WRITE";
 578 static const char VMEXIT_LDTR_WRITE_STR[] = "VMEXIT_LDTR_WRITE";
 579 static const char VMEXIT_TR_WRITE_STR[] = "VMEXIT_TR_WRITE";
 580 static const char VMEXIT_RDTSC_STR[] = "VMEXIT_RDTSC";
 581 static const char VMEXIT_RDPMC_STR[] = "VMEXIT_RDPMC";
 582 static const char VMEXIT_PUSHF_STR[] = "VMEXIT_PUSHF";
 583 static const char VMEXIT_POPF_STR[] = "VMEXIT_POPF";
 584 static const char VMEXIT_CPUID_STR[] = "VMEXIT_CPUID";
 585 static const char VMEXIT_RSM_STR[] = "VMEXIT_RSM";
 586 static const char VMEXIT_IRET_STR[] = "VMEXIT_IRET";
 587 static const char VMEXIT_SWINT_STR[] = "VMEXIT_SWINT";
 588 static const char VMEXIT_INVD_STR[] = "VMEXIT_INVD";
 589 static const char VMEXIT_PAUSE_STR[] = "VMEXIT_PAUSE";
 590 static const char VMEXIT_HLT_STR[] = "VMEXIT_HLT";
 591 static const char VMEXIT_INVLPG_STR[] = "VMEXIT_INVLPG";
 592 static const char VMEXIT_INVLPGA_STR[] = "VMEXIT_INVLPGA";
 593 static const char VMEXIT_IOIO_STR[] = "VMEXIT_IOIO";
 594 static const char VMEXIT_MSR_STR[] = "VMEXIT_MSR";
 595 static const char VMEXIT_TASK_SWITCH_STR[] = "VMEXIT_TASK_SWITCH";
 596 static const char VMEXIT_FERR_FREEZE_STR[] = "VMEXIT_FERR_FREEZE";
 597 static const char VMEXIT_SHUTDOWN_STR[] = "VMEXIT_SHUTDOWN";
 598 static const char VMEXIT_VMRUN_STR[] = "VMEXIT_VMRUN";
 599 static const char VMEXIT_VMMCALL_STR[] = "VMEXIT_VMMCALL";
 600 static const char VMEXIT_VMLOAD_STR[] = "VMEXIT_VMLOAD";
 601 static const char VMEXIT_VMSAVE_STR[] = "VMEXIT_VMSAVE";
 602 static const char VMEXIT_STGI_STR[] = "VMEXIT_STGI";
 603 static const char VMEXIT_CLGI_STR[] = "VMEXIT_CLGI";
 604 static const char VMEXIT_SKINIT_STR[] = "VMEXIT_SKINIT";
 605 static const char VMEXIT_RDTSCP_STR[] = "VMEXIT_RDTSCP";
 606 static const char VMEXIT_ICEBP_STR[] = "VMEXIT_ICEBP";
 607 static const char VMEXIT_WBINVD_STR[] = "VMEXIT_WBINVD";
 608 static const char VMEXIT_MONITOR_STR[] = "VMEXIT_MONITOR";
 609 static const char VMEXIT_MWAIT_STR[] = "VMEXIT_MWAIT";
 610 static const char VMEXIT_MWAIT_CONDITIONAL_STR[] = "VMEXIT_MWAIT_CONDITIONAL";
 611 static const char VMEXIT_NPF_STR[] = "VMEXIT_NPF";
 612 static const char VMEXIT_INVALID_VMCB_STR[] = "VMEXIT_INVALID_VMCB";
 613
 614
 615
 616 const char * vmexit_code_to_str(uint_t exit_code) {
 617     switch(exit_code) {
 618         case VMEXIT_CR0_READ:
 619             return VMEXIT_CR0_READ_STR;
 620         case VMEXIT_CR1_READ:
 621             return VMEXIT_CR1_READ_STR;
 622         case VMEXIT_CR2_READ:
 623             return VMEXIT_CR2_READ_STR;
 624         case VMEXIT_CR3_READ:
 625             return VMEXIT_CR3_READ_STR;
 626         case VMEXIT_CR4_READ:
 627             return VMEXIT_CR4_READ_STR;
 628         case VMEXIT_CR5_READ:
 629             return VMEXIT_CR5_READ_STR;
 630         case VMEXIT_CR6_READ:
 631             return VMEXIT_CR6_READ_STR;
 632         case VMEXIT_CR7_READ:
 633             return VMEXIT_CR7_READ_STR;
 634         case VMEXIT_CR8_READ:
 635             return VMEXIT_CR8_READ_STR;
 636         case VMEXIT_CR9_READ:
 637             return VMEXIT_CR9_READ_STR;
 638         case VMEXIT_CR10_READ:
 639             return VMEXIT_CR10_READ_STR;
 640         case VMEXIT_CR11_READ:
 641             return VMEXIT_CR11_READ_STR;
 642         case VMEXIT_CR12_READ:
 643             return VMEXIT_CR12_READ_STR;
 644         case VMEXIT_CR13_READ:
 645             return VMEXIT_CR13_READ_STR;
 646         case VMEXIT_CR14_READ:
 647             return VMEXIT_CR14_READ_STR;
 648         case VMEXIT_CR15_READ:
 649             return VMEXIT_CR15_READ_STR;
 650         case VMEXIT_CR0_WRITE:
 651             return VMEXIT_CR0_WRITE_STR;
 652         case VMEXIT_CR1_WRITE:
 653             return VMEXIT_CR1_WRITE_STR;
 654         case VMEXIT_CR2_WRITE:
 655             return VMEXIT_CR2_WRITE_STR;
 656         case VMEXIT_CR3_WRITE:
 657             return VMEXIT_CR3_WRITE_STR;
 658         case VMEXIT_CR4_WRITE:
 659             return VMEXIT_CR4_WRITE_STR;
 660         case VMEXIT_CR5_WRITE:
 661             return VMEXIT_CR5_WRITE_STR;
 662         case VMEXIT_CR6_WRITE:
 663             return VMEXIT_CR6_WRITE_STR;
 664         case VMEXIT_CR7_WRITE:
 665             return VMEXIT_CR7_WRITE_STR;
 666         case VMEXIT_CR8_WRITE:
 667             return VMEXIT_CR8_WRITE_STR;
 668         case VMEXIT_CR9_WRITE:
 669             return VMEXIT_CR9_WRITE_STR;
 670         case VMEXIT_CR10_WRITE:
 671             return VMEXIT_CR10_WRITE_STR;
 672         case VMEXIT_CR11_WRITE:
 673             return VMEXIT_CR11_WRITE_STR;
 674         case VMEXIT_CR12_WRITE:
 675             return VMEXIT_CR12_WRITE_STR;
 676         case VMEXIT_CR13_WRITE:
 677             return VMEXIT_CR13_WRITE_STR;
 678         case VMEXIT_CR14_WRITE:
 679             return VMEXIT_CR14_WRITE_STR;
 680         case VMEXIT_CR15_WRITE:
 681             return VMEXIT_CR15_WRITE_STR;
 682         case VMEXIT_DR0_READ:
 683             return VMEXIT_DR0_READ_STR;
 684         case VMEXIT_DR1_READ:
 685             return VMEXIT_DR1_READ_STR;
 686         case VMEXIT_DR2_READ:
 687             return VMEXIT_DR2_READ_STR;
 688         case VMEXIT_DR3_READ:
 689             return VMEXIT_DR3_READ_STR;
 690         case VMEXIT_DR4_READ:
 691             return VMEXIT_DR4_READ_STR;
 692         case VMEXIT_DR5_READ:
 693             return VMEXIT_DR5_READ_STR;
 694         case VMEXIT_DR6_READ:
 695             return VMEXIT_DR6_READ_STR;
 696         case VMEXIT_DR7_READ:
 697             return VMEXIT_DR7_READ_STR;
 698         case VMEXIT_DR8_READ:
 699             return VMEXIT_DR8_READ_STR;
 700         case VMEXIT_DR9_READ:
 701             return VMEXIT_DR9_READ_STR;
 702         case VMEXIT_DR10_READ:
 703             return VMEXIT_DR10_READ_STR;
 704         case VMEXIT_DR11_READ:
 705             return VMEXIT_DR11_READ_STR;
 706         case VMEXIT_DR12_READ:
 707             return VMEXIT_DR12_READ_STR;
 708         case VMEXIT_DR13_READ:
 709             return VMEXIT_DR13_READ_STR;
 710         case VMEXIT_DR14_READ:
 711             return VMEXIT_DR14_READ_STR;
 712         case VMEXIT_DR15_READ:
 713             return VMEXIT_DR15_READ_STR;
 714         case VMEXIT_DR0_WRITE:
 715             return VMEXIT_DR0_WRITE_STR;
 716         case VMEXIT_DR1_WRITE:
 717             return VMEXIT_DR1_WRITE_STR;
 718         case VMEXIT_DR2_WRITE:
 719             return VMEXIT_DR2_WRITE_STR;
 720         case VMEXIT_DR3_WRITE:
 721             return VMEXIT_DR3_WRITE_STR;
 722         case VMEXIT_DR4_WRITE:
 723             return VMEXIT_DR4_WRITE_STR;
 724         case VMEXIT_DR5_WRITE:
 725             return VMEXIT_DR5_WRITE_STR;
 726         case VMEXIT_DR6_WRITE:
 727             return VMEXIT_DR6_WRITE_STR;
 728         case VMEXIT_DR7_WRITE:
 729             return VMEXIT_DR7_WRITE_STR;
 730         case VMEXIT_DR8_WRITE:
 731             return VMEXIT_DR8_WRITE_STR;
 732         case VMEXIT_DR9_WRITE:
 733             return VMEXIT_DR9_WRITE_STR;
 734         case VMEXIT_DR10_WRITE:
 735             return VMEXIT_DR10_WRITE_STR;
 736         case VMEXIT_DR11_WRITE:
 737             return VMEXIT_DR11_WRITE_STR;
 738         case VMEXIT_DR12_WRITE:
 739             return VMEXIT_DR12_WRITE_STR;
 740         case VMEXIT_DR13_WRITE:
 741             return VMEXIT_DR13_WRITE_STR;
 742         case VMEXIT_DR14_WRITE:
 743             return VMEXIT_DR14_WRITE_STR;
 744         case VMEXIT_DR15_WRITE:
 745             return VMEXIT_DR15_WRITE_STR;
 746         case VMEXIT_EXCP0:
 747             return VMEXIT_EXCP0_STR;
 748         case VMEXIT_EXCP1:
 749             return VMEXIT_EXCP1_STR;
 750         case VMEXIT_EXCP2:
 751             return VMEXIT_EXCP2_STR;
 752         case VMEXIT_EXCP3:
 753             return VMEXIT_EXCP3_STR;
 754         case VMEXIT_EXCP4:
 755             return VMEXIT_EXCP4_STR;
 756         case VMEXIT_EXCP5:
 757             return VMEXIT_EXCP5_STR;
 758         case VMEXIT_EXCP6:
 759             return VMEXIT_EXCP6_STR;
 760         case VMEXIT_EXCP7:
 761             return VMEXIT_EXCP7_STR;
 762         case VMEXIT_EXCP8:
 763             return VMEXIT_EXCP8_STR;
 764         case VMEXIT_EXCP9:
 765             return VMEXIT_EXCP9_STR;
 766         case VMEXIT_EXCP10:
 767             return VMEXIT_EXCP10_STR;
 768         case VMEXIT_EXCP11:
 769             return VMEXIT_EXCP11_STR;
 770         case VMEXIT_EXCP12:
 771             return VMEXIT_EXCP12_STR;
 772         case VMEXIT_EXCP13:
 773             return VMEXIT_EXCP13_STR;
 774         case VMEXIT_EXCP14:
 775             return VMEXIT_EXCP14_STR;
 776         case VMEXIT_EXCP15:
 777             return VMEXIT_EXCP15_STR;
 778         case VMEXIT_EXCP16:
 779             return VMEXIT_EXCP16_STR;
 780         case VMEXIT_EXCP17:
 781             return VMEXIT_EXCP17_STR;
 782         case VMEXIT_EXCP18:
 783             return VMEXIT_EXCP18_STR;
 784         case VMEXIT_EXCP19:
 785             return VMEXIT_EXCP19_STR;
 786         case VMEXIT_EXCP20:
 787             return VMEXIT_EXCP20_STR;
 788         case VMEXIT_EXCP21:
 789             return VMEXIT_EXCP21_STR;
 790         case VMEXIT_EXCP22:
 791             return VMEXIT_EXCP22_STR;
 792         case VMEXIT_EXCP23:
 793             return VMEXIT_EXCP23_STR;
 794         case VMEXIT_EXCP24:
 795             return VMEXIT_EXCP24_STR;
 796         case VMEXIT_EXCP25:
 797             return VMEXIT_EXCP25_STR;
 798         case VMEXIT_EXCP26:
 799             return VMEXIT_EXCP26_STR;
 800         case VMEXIT_EXCP27:
 801             return VMEXIT_EXCP27_STR;
 802         case VMEXIT_EXCP28:
 803             return VMEXIT_EXCP28_STR;
 804         case VMEXIT_EXCP29:
 805             return VMEXIT_EXCP29_STR;
 806         case VMEXIT_EXCP30:
 807             return VMEXIT_EXCP30_STR;
 808         case VMEXIT_EXCP31:
 809             return VMEXIT_EXCP31_STR;
 810         case VMEXIT_INTR:
 811             return VMEXIT_INTR_STR;
 812         case VMEXIT_NMI:
 813             return VMEXIT_NMI_STR;
 814         case VMEXIT_SMI:
 815             return VMEXIT_SMI_STR;
 816         case VMEXIT_INIT:
 817             return VMEXIT_INIT_STR;
 818         case VMEXIT_VINITR:
 819             return VMEXIT_VINITR_STR;
 820         case VMEXIT_CR0_SEL_WRITE:
 821             return VMEXIT_CR0_SEL_WRITE_STR;
 822         case VMEXIT_IDTR_READ:
 823             return VMEXIT_IDTR_READ_STR;
 824         case VMEXIT_GDTR_READ:
 825             return VMEXIT_GDTR_READ_STR;
 826         case VMEXIT_LDTR_READ:
 827             return VMEXIT_LDTR_READ_STR;
 828         case VMEXIT_TR_READ:
 829             return VMEXIT_TR_READ_STR;
 830         case VMEXIT_IDTR_WRITE:
 831             return VMEXIT_IDTR_WRITE_STR;
 832         case VMEXIT_GDTR_WRITE:
 833             return VMEXIT_GDTR_WRITE_STR;
 834         case VMEXIT_LDTR_WRITE:
 835             return VMEXIT_LDTR_WRITE_STR;
 836         case VMEXIT_TR_WRITE:
 837             return VMEXIT_TR_WRITE_STR;
 838         case VMEXIT_RDTSC:
 839             return VMEXIT_RDTSC_STR;
 840         case VMEXIT_RDPMC:
 841             return VMEXIT_RDPMC_STR;
 842         case VMEXIT_PUSHF:
 843             return VMEXIT_PUSHF_STR;
 844         case VMEXIT_POPF:
 845             return VMEXIT_POPF_STR;
 846         case VMEXIT_CPUID:
 847             return VMEXIT_CPUID_STR;
 848         case VMEXIT_RSM:
 849             return VMEXIT_RSM_STR;
 850         case VMEXIT_IRET:
 851             return VMEXIT_IRET_STR;
 852         case VMEXIT_SWINT:
 853             return VMEXIT_SWINT_STR;
 854         case VMEXIT_INVD:
 855             return VMEXIT_INVD_STR;
 856         case VMEXIT_PAUSE:
 857             return VMEXIT_PAUSE_STR;
 858         case VMEXIT_HLT:
 859             return VMEXIT_HLT_STR;
 860         case VMEXIT_INVLPG:
 861             return VMEXIT_INVLPG_STR;
 862         case VMEXIT_INVLPGA:
 863             return VMEXIT_INVLPGA_STR;
 864         case VMEXIT_IOIO:
 865             return VMEXIT_IOIO_STR;
 866         case VMEXIT_MSR:
 867             return VMEXIT_MSR_STR;
 868         case VMEXIT_TASK_SWITCH:
 869             return VMEXIT_TASK_SWITCH_STR;
 870         case VMEXIT_FERR_FREEZE:
 871             return VMEXIT_FERR_FREEZE_STR;
 872         case VMEXIT_SHUTDOWN:
 873             return VMEXIT_SHUTDOWN_STR;
 874         case VMEXIT_VMRUN:
 875             return VMEXIT_VMRUN_STR;
 876         case VMEXIT_VMMCALL:
 877             return VMEXIT_VMMCALL_STR;
 878         case VMEXIT_VMLOAD:
 879             return VMEXIT_VMLOAD_STR;
 880         case VMEXIT_VMSAVE:
 881             return VMEXIT_VMSAVE_STR;
 882         case VMEXIT_STGI:
 883             return VMEXIT_STGI_STR;
 884         case VMEXIT_CLGI:
 885             return VMEXIT_CLGI_STR;
 886         case VMEXIT_SKINIT:
 887             return VMEXIT_SKINIT_STR;
 888         case VMEXIT_RDTSCP:
 889             return VMEXIT_RDTSCP_STR;
 890         case VMEXIT_ICEBP:
 891             return VMEXIT_ICEBP_STR;
 892         case VMEXIT_WBINVD:
 893             return VMEXIT_WBINVD_STR;
 894         case VMEXIT_MONITOR:
 895             return VMEXIT_MONITOR_STR;
 896         case VMEXIT_MWAIT:
 897             return VMEXIT_MWAIT_STR;
 898         case VMEXIT_MWAIT_CONDITIONAL:
 899             return VMEXIT_MWAIT_CONDITIONAL_STR;
 900         case VMEXIT_NPF:
 901             return VMEXIT_NPF_STR;
 902         case VMEXIT_INVALID_VMCB:
 903             return VMEXIT_INVALID_VMCB_STR;
 904     }
 905     return NULL;
 906 }