palacios/src/palacios/vmm_debug.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/vmm_debug.h>
  22 #include <palacios/vmm.h>
  23 #include <palacios/vmm_host_events.h>
  24 #include <palacios/vm_guest.h>
  25 #include <palacios/vmm_decoder.h>
  26 #include <palacios/vm_guest_mem.h>
  27 #include <palacios/vmm_config.h>
  28
  29 #define PRINT_TELEMETRY  1
  30 #define PRINT_CORE_STATE 2
  31 #define PRINT_ARCH_STATE 3
  32 #define PRINT_STACK      4
  33 #define PRINT_BACKTRACE  5
  34
  35
  36 #define PRINT_ALL        100 // Absolutely everything
  37 #define PRINT_STATE      101 // telemetry, core state, arch state
  38
  39
  40
  41
  42 static int core_handler(struct guest_info * core, uint32_t cmd) {
  43
  44
  45     switch (cmd) {
  46 #ifdef V3_CONFIG_TELEMETRY
  47         case PRINT_TELEMETRY:
  48             v3_print_core_telemetry(core);
  49             break;
  50 #endif
  51
  52         case PRINT_CORE_STATE:
  53             v3_raise_barrier(core->vm_info, NULL);
  54
  55             v3_print_guest_state(core);
  56
  57             v3_lower_barrier(core->vm_info);
  58             break;
  59         case PRINT_ARCH_STATE:
  60             v3_raise_barrier(core->vm_info, NULL);
  61
  62             v3_print_arch_state(core);
  63
  64             v3_lower_barrier(core->vm_info);
  65             break;
  66         case PRINT_STACK:
  67             v3_raise_barrier(core->vm_info, NULL);
  68
  69             v3_print_stack(core);
  70
  71             v3_lower_barrier(core->vm_info);
  72             break;
  73         case PRINT_BACKTRACE:
  74             v3_raise_barrier(core->vm_info, NULL);
  75
  76             v3_print_backtrace(core);
  77
  78             v3_lower_barrier(core->vm_info);
  79             break;
  80
  81         case PRINT_STATE:
  82             v3_raise_barrier(core->vm_info, NULL);
  83
  84 #ifdef V3_CONFIG_TELEMETRY
  85             v3_print_core_telemetry(core);
  86 #endif
  87             v3_print_guest_state(core);
  88             v3_print_arch_state(core);
  89
  90             v3_lower_barrier(core->vm_info);
  91             break;
  92
  93         case PRINT_ALL:
  94             v3_raise_barrier(core->vm_info, NULL);
  95
  96 #ifdef V3_CONFIG_TELEMETRY
  97             v3_print_core_telemetry(core);
  98 #endif
  99             v3_print_guest_state(core);
 100             v3_print_arch_state(core);
 101         v3_print_stack(core);
 102         v3_print_backtrace(core);
 103
 104             v3_lower_barrier(core->vm_info);
 105             break;
 106
 107     }
 108
 109     return 0;
 110 }
 111
 112
 113 static int evt_handler(struct v3_vm_info * vm, struct v3_debug_event * evt, void * priv_data) {
 114
 115     V3_Print(vm, VCORE_NONE,"Debug Event Handler for core %d cmd=%x\n", evt->core_id, evt->cmd);
 116
 117     if (evt->core_id == -1) {
 118         int i = 0;
 119         for (i = 0; i < vm->num_cores; i++) {
 120             core_handler(&(vm->cores[i]), evt->cmd);
 121         }
 122     } else {
 123         return core_handler(&vm->cores[evt->core_id], evt->cmd);
 124     }
 125
 126
 127     return 0;
 128 }
 129
 130
 131 int v3_init_vm_debugging(struct v3_vm_info * vm) {
 132     v3_hook_host_event(vm, HOST_DEBUG_EVT,
 133                        V3_HOST_EVENT_HANDLER(evt_handler),
 134                        NULL);
 135
 136
 137     return 0;
 138 }
 139
 140
 141
 142
 143
 144 void v3_print_segments(struct v3_segments * segs) {
 145     int i = 0;
 146     struct v3_segment * seg_ptr;
 147
 148     seg_ptr=(struct v3_segment *)segs;
 149
 150     char *seg_names[] = {"CS", "DS" , "ES", "FS", "GS", "SS" , "LDTR", "GDTR", "IDTR", "TR", NULL};
 151     V3_Print(VM_NONE, VCORE_NONE, "Segments\n");
 152
 153     for (i = 0; seg_names[i] != NULL; i++) {
 154
 155         V3_Print(VM_NONE, VCORE_NONE, "\t%s: selector=0x%x, base=%p, limit=0x%x type=0x%x system=0x%x dpl=0x%x present=0x%x avail=0x%x long_mode=0x%x db=0x%x granularity=0x%x unusable=0x%x\n",
 156                  seg_names[i],
 157                  seg_ptr[i].selector,
 158                  (void *)(addr_t)seg_ptr[i].base,
 159                  seg_ptr[i].limit,
 160                  seg_ptr[i].type,
 161                  seg_ptr[i].system,
 162                  seg_ptr[i].dpl,
 163                  seg_ptr[i].present,
 164                  seg_ptr[i].avail,
 165                  seg_ptr[i].long_mode,
 166                  seg_ptr[i].db,
 167                  seg_ptr[i].granularity,
 168                  seg_ptr[i].unusable);
 169     }
 170 }
 171
 172
 173
 174 void v3_print_ctrl_regs(struct guest_info * core) {
 175     struct v3_ctrl_regs * regs = &(core->ctrl_regs);
 176     int i = 0;
 177     v3_reg_t * reg_ptr;
 178     char * reg_names[] = {"CR0", "CR2", "CR3", "CR4", "CR8", "FLAGS", "EFER", NULL};
 179
 180
 181     reg_ptr = (v3_reg_t *)regs;
 182
 183     V3_Print(core->vm_info, core,"Ctrl Regs:\n");
 184
 185     for (i = 0; reg_names[i] != NULL; i++) {
 186         V3_Print(core->vm_info, core, "\t%s=0x%p (at %p)\n", reg_names[i], (void *)(addr_t)reg_ptr[i], &(reg_ptr[i]));
 187     }
 188
 189
 190 }
 191
 192 #if 0
 193 static int safe_gva_to_hva(struct guest_info * core, addr_t linear_addr, addr_t * host_addr) {
 194     /* select the proper translation based on guest mode */
 195     if (core->mem_mode == PHYSICAL_MEM) {
 196         if (v3_gpa_to_hva(core, linear_addr, host_addr) == -1) return -1;
 197     } else if (core->mem_mode == VIRTUAL_MEM) {
 198         if (v3_gva_to_hva(core, linear_addr, host_addr) == -1) return -1;
 199     }
 200     return 0;
 201 }
 202
 203 static int v3_print_disassembly(struct guest_info * core) {
 204     int passed_rip = 0;
 205     addr_t rip, rip_linear, rip_host;
 206
 207     /* we don't know where the instructions preceding RIP start, so we just take
 208      * a guess and hope the instruction stream synced up with our disassembly
 209      * some time before RIP; if it has not we correct RIP at that point
 210      */
 211
 212     /* start disassembly 64 bytes before current RIP, continue 32 bytes after */
 213     rip = (addr_t) core->rip - 64;
 214     while ((int) (rip - core->rip) < 32) {
 215         V3_Print(info->vm_info, info, "disassembly step\n");
 216
 217         /* always print RIP, even if the instructions before were bad */
 218         if (!passed_rip && rip >= core->rip) {
 219             if (rip != core->rip) {
 220                 V3_Print(info->vm_info, info, "***** bad disassembly up to this point *****\n");
 221                 rip = core->rip;
 222             }
 223             passed_rip = 1;
 224         }
 225
 226         /* look up host virtual address for this instruction */
 227         rip_linear = get_addr_linear(core, rip, &(core->segments.cs));
 228         if (safe_gva_to_hva(core, rip_linear, &rip_host) < 0) {
 229             rip++;
 230             continue;
 231         }
 232
 233         /* print disassembled instrcution (updates rip) */
 234         if (v3_disasm(core, (void *) rip_host, &rip, rip == core->rip) < 0) {
 235             rip++;
 236             continue;
 237         }
 238
 239     }
 240
 241     return 0;
 242 }
 243
 244 #endif
 245
 246 void v3_print_guest_state(struct guest_info * core) {
 247     addr_t linear_addr = 0;
 248
 249     V3_Print(core->vm_info, core, "RIP: %p\n", (void *)(addr_t)(core->rip));
 250     linear_addr = get_addr_linear(core, core->rip, &(core->segments.cs));
 251     V3_Print(core->vm_info, core, "RIP Linear: %p\n", (void *)linear_addr);
 252
 253     V3_Print(core->vm_info, core, "NumExits: %u\n", (uint32_t)core->num_exits);
 254
 255     V3_Print(core->vm_info, core, "IRQ STATE: started=%d, pending=%d\n",
 256              core->intr_core_state.irq_started,
 257              core->intr_core_state.irq_pending);
 258     V3_Print(core->vm_info, core, "EXCP STATE: err_code_valid=%d, err_code=%x\n",
 259              core->excp_state.excp_error_code_valid,
 260              core->excp_state.excp_error_code);
 261
 262
 263     v3_print_segments(&(core->segments));
 264     v3_print_ctrl_regs(core);
 265
 266     if (core->shdw_pg_mode == SHADOW_PAGING) {
 267         V3_Print(core->vm_info, core, "Shadow Paging Guest Registers:\n");
 268         V3_Print(core->vm_info, core, "\tGuest CR0=%p\n", (void *)(addr_t)(core->shdw_pg_state.guest_cr0));
 269         V3_Print(core->vm_info, core, "\tGuest CR3=%p\n", (void *)(addr_t)(core->shdw_pg_state.guest_cr3));
 270         V3_Print(core->vm_info, core, "\tGuest EFER=%p\n", (void *)(addr_t)(core->shdw_pg_state.guest_efer.value));
 271         // CR4
 272     }
 273     v3_print_GPRs(core);
 274
 275     v3_print_idt(core,core->segments.idtr.base);
 276     v3_print_gdt(core,core->segments.gdtr.base);
 277     v3_print_ldt(core,core->segments.ldtr.base);
 278     v3_print_tss(core,core->segments.tr.base);
 279
 280     v3_print_mem_map(core->vm_info);
 281
 282     v3_print_stack(core);
 283
 284     //  v3_print_disassembly(core);
 285 }
 286
 287
 288 void v3_print_arch_state(struct guest_info * core) {
 289
 290
 291 }
 292
 293
 294 void v3_print_guest_state_all(struct v3_vm_info * vm) {
 295     int i = 0;
 296
 297     V3_Print(vm, VCORE_NONE,"VM Core states for %s\n", vm->name);
 298
 299     for (i = 0; i < 80; i++) {
 300       V3_Print(vm, VCORE_NONE, "-");
 301     }
 302
 303     for (i = 0; i < vm->num_cores; i++) {
 304         v3_print_guest_state(&vm->cores[i]);
 305     }
 306
 307     for (i = 0; i < 80; i++) {
 308         V3_Print(vm, VCORE_NONE, "-");
 309     }
 310
 311     V3_Print(vm, VCORE_NONE, "\n");
 312 }
 313
 314
 315
 316 void v3_print_stack(struct guest_info * core) {
 317     addr_t linear_addr = 0;
 318     addr_t host_addr = 0;
 319     int i = 0;
 320     v3_cpu_mode_t cpu_mode = v3_get_vm_cpu_mode(core);
 321
 322     linear_addr = get_addr_linear(core, core->vm_regs.rsp, &(core->segments.ss));
 323
 324     V3_Print(core->vm_info, core, "Stack at %p:\n", (void *)linear_addr);
 325
 326     if (core->mem_mode == PHYSICAL_MEM) {
 327         if (v3_gpa_to_hva(core, linear_addr, &host_addr) == -1) {
 328             PrintError(core->vm_info, core, "Could not translate Stack address\n");
 329             return;
 330         }
 331     } else if (core->mem_mode == VIRTUAL_MEM) {
 332         if (v3_gva_to_hva(core, linear_addr, &host_addr) == -1) {
 333             PrintError(core->vm_info, core, "Could not translate Virtual Stack address\n");
 334             return;
 335         }
 336     }
 337
 338     V3_Print(core->vm_info, core, "Host Address of rsp = 0x%p\n", (void *)host_addr);
 339
 340     // We start i at one because the current stack pointer points to an unused stack element
 341     for (i = 0; i <= 24; i++) {
 342
 343         if (cpu_mode == REAL) {
 344             V3_Print(core->vm_info, core, "\t0x%.4x\n", *((uint16_t *)host_addr + (i * 2)));
 345         } else if (cpu_mode == LONG) {
 346             V3_Print(core->vm_info, core, "\t%p\n", (void *)*(addr_t *)(host_addr + (i * 8)));
 347         } else {
 348             // 32 bit stacks...
 349             V3_Print(core->vm_info, core, "\t0x%.8x\n", *(uint32_t *)(host_addr + (i * 4)));
 350         }
 351     }
 352
 353 }
 354
 355
 356 void v3_print_backtrace(struct guest_info * core) {
 357     addr_t gla_rbp = 0;
 358     int i = 0;
 359     v3_cpu_mode_t cpu_mode = v3_get_vm_cpu_mode(core);
 360     struct v3_cfg_file * system_map = v3_cfg_get_file(core->vm_info, "System.map");
 361
 362     V3_Print(core->vm_info, core, "Performing Backtrace for Core %d\n", core->vcpu_id);
 363     V3_Print(core->vm_info, core, "\tRSP=%p, RBP=%p\n", (void *)core->vm_regs.rsp, (void *)core->vm_regs.rbp);
 364
 365     gla_rbp = get_addr_linear(core, core->vm_regs.rbp, &(core->segments.ss));
 366
 367
 368     for (i = 0; i < 30; i++) {
 369         addr_t hva_rbp = 0;
 370         addr_t hva_rip = 0;
 371         char * sym_name = NULL;
 372         addr_t rip_val = 0;
 373
 374         if (core->mem_mode == PHYSICAL_MEM) {
 375             if (v3_gpa_to_hva(core, gla_rbp, &hva_rbp) == -1) {
 376                 PrintError(core->vm_info, core, "Could not translate Stack address\n");
 377                 return;
 378             }
 379         } else if (core->mem_mode == VIRTUAL_MEM) {
 380             if (v3_gva_to_hva(core, gla_rbp, &hva_rbp) == -1) {
 381                 PrintError(core->vm_info, core, "Could not translate Virtual Stack address\n");
 382                 return;
 383             }
 384         }
 385
 386
 387         hva_rip = hva_rbp + v3_get_addr_width(core);
 388
 389         if (cpu_mode == REAL) {
 390             rip_val = (addr_t)*(uint16_t *)hva_rip;
 391         } else if (cpu_mode == LONG) {
 392             rip_val = (addr_t)*(uint64_t *)hva_rip;
 393         } else {
 394             rip_val = (addr_t)*(uint32_t *)hva_rip;
 395         }
 396
 397         if (system_map) {
 398             char * tmp_ptr = system_map->data;
 399             char * sym_ptr = NULL;
 400             uint64_t file_offset = 0;
 401             uint64_t sym_offset = 0;
 402
 403             while (file_offset < system_map->size) {
 404                 sym_offset = strtox(tmp_ptr, &tmp_ptr);
 405
 406                 tmp_ptr += 3; // pass over symbol type
 407
 408                 if (sym_offset > rip_val) {
 409                     if (sym_ptr) {
 410                         char * end_ptr = strchr(sym_ptr, '\n');
 411
 412                         if (end_ptr) {
 413                             *end_ptr = 0; // null terminate symbol...
 414                         }
 415                         sym_name = sym_ptr;
 416                     } else {
 417                         sym_name = NULL;
 418                     }
 419                     break;
 420                 }
 421
 422                 sym_ptr = tmp_ptr;
 423
 424                 {
 425                     char * end_ptr2 = strchr(tmp_ptr, '\n');
 426
 427                     if (!end_ptr2) {
 428                         tmp_ptr += strlen(tmp_ptr) + 1;
 429                     } else {
 430                         tmp_ptr = end_ptr2 + 1;
 431                     }
 432                 }
 433             }
 434         }
 435
 436         if (!sym_name) {
 437             sym_name = "?";
 438         }
 439
 440         if (cpu_mode == REAL) {
 441             V3_Print(core->vm_info, core, "Next RBP=0x%.4x, RIP=0x%.4x (%s)\n",
 442                      *(uint16_t *)hva_rbp,*(uint16_t *)hva_rip,
 443                      sym_name);
 444
 445             gla_rbp = *(uint16_t *)hva_rbp;
 446         } else if (cpu_mode == LONG) {
 447             V3_Print(core->vm_info, core, "Next RBP=%p, RIP=%p (%s)\n",
 448                      (void *)*(uint64_t *)hva_rbp, (void *)*(uint64_t *)hva_rip,
 449                      sym_name);
 450             gla_rbp = *(uint64_t *)hva_rbp;
 451         } else {
 452             V3_Print(core->vm_info, core, "Next RBP=0x%.8x, RIP=0x%.8x (%s)\n",
 453                      *(uint32_t *)hva_rbp, *(uint32_t *)hva_rip,
 454                      sym_name);
 455             gla_rbp = *(uint32_t *)hva_rbp;
 456         }
 457
 458     }
 459 }
 460
 461
 462 #ifdef __V3_32BIT__
 463
 464 void v3_print_GPRs(struct guest_info * core) {
 465     struct v3_gprs * regs = &(core->vm_regs);
 466     int i = 0;
 467     v3_reg_t * reg_ptr;
 468     char * reg_names[] = { "RDI", "RSI", "RBP", "RSP", "RBX", "RDX", "RCX", "RAX", NULL};
 469
 470     reg_ptr = (v3_reg_t *)regs;
 471
 472     V3_Print(info->vm_info, info, "32 bit GPRs:\n");
 473
 474     for (i = 0; reg_names[i] != NULL; i++) {
 475         V3_Print(info->vm_info, info, "\t%s=0x%p (at %p)\n", reg_names[i], (void *)(addr_t)reg_ptr[i], &(reg_ptr[i]));
 476     }
 477 }
 478
 479 void v3_print_idt(struct guest_info * core, addr_t idtr_base) {
 480     addr_t base_hva;
 481
 482     if (v3_get_vm_cpu_mode(core)!=LONG) {
 483         V3_Print(core->vm_info, core, "= IDT ========\n");
 484         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 485         return;
 486     }
 487
 488
 489     if (core->mem_mode == PHYSICAL_MEM) {
 490         v3_gpa_to_hva(core,
 491                       get_addr_linear(core, idtr_base, &(core->segments.cs)),
 492                       &base_hva);
 493         PrintError(core->vm_info, core, "Kind of weird that we got here.... physical mem?\n");
 494     } else if (core->mem_mode == VIRTUAL_MEM) {
 495         v3_gva_to_hva(core,
 496                       get_addr_linear(core, idtr_base, &(core->segments.cs)),
 497                       &base_hva);
 498     }
 499
 500     // SANITY CHECK
 501     if (idtr_base != get_addr_linear(core, idtr_base, &(core->segments.cs))) {
 502         PrintError(core->vm_info, core, "idtr base address != linear translation, might be something funky with cs\n");
 503     }
 504
 505     if (!base_hva) {
 506         PrintError(core->vm_info, core "idtr address does not translate!  skipping.\n");
 507         return ;
 508     }
 509
 510     int i;
 511     char *types[16] = {"  ILGL","aTSS16","   LDT","bTSS16","call16","  task","intr16","trap16",
 512         "  ILGL","aTSS32","  ILGL","bTSS32","call32","  ILGL","intr32","trap32"};
 513
 514     struct int_trap_gate_lgcy * entry;
 515     entry = (struct int_trap_gate_lgcy *)base_hva;
 516     V3_Print(core->vm_info, core, "= IDT ========\n");
 517     V3_Print(core->vm_info, core, "  # | hex | selector | si:ti:rpl |   offset | type | dpl | s | p\n");
 518     for (i = 0; i < NUM_IDT_ENTRIES; i++) {
 519         uint32_t tmp = entry->selector;
 520         struct segment_selector * seg = (struct segment_selector *)(&tmp);
 521         V3_Print(core->vm_info, core, "%3d | %3x |     %04x |   %03x:%x:%x | %04x%04x | %s |   %x | %x | %x | %x\n", i, i,
 522                 entry->selector,
 523                 seg->index, seg->ti, seg->rpl,
 524                 entry->offset_hi, entry->offset_lo,
 525                 types[entry->type], entry->dpl, entry->s, entry->p);
 526         entry++;
 527     }
 528 }
 529
 530 void v3_print_gdt(struct guest_info * core, addr_t gdtr_base) {
 531     addr_t base_hva;
 532
 533     if (v3_get_vm_cpu_mode(core)!=LONG) {
 534         V3_Print(core->vm_info, core, "= GDT ========\n");
 535         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 536         return;
 537     }
 538
 539     if (core->mem_mode == PHYSICAL_MEM) {
 540         v3_gpa_to_hva(core,
 541                       get_addr_linear(core, gdtr_base, &(core->segments.cs)),
 542                       &base_hva);
 543         PrintError(core->vm_info, core, "Kind of weird that we got here.... physical mem?\n");
 544     } else if (core->mem_mode == VIRTUAL_MEM) {
 545         v3_gva_to_hva(core,
 546                       get_addr_linear(core, gdtr_base, &(core->segments.cs)),
 547                       &base_hva);
 548     }
 549
 550     // SANITY CHECK
 551     if (gdtr_base != get_addr_linear(core, gdtr_base, &(core->segments.cs))) {
 552         PrintError(core->vm_info, core, "gdtr base address != linear translation, might be something funky with cs\n");
 553     }
 554
 555     if (!base_hva) {
 556         PrintError(core->vm_info, core "gdtr address does not translate!  skipping.\n");
 557         return ;
 558     }
 559
 560     int i;
 561     char* cd[2] = {"data","code"};
 562     // TODO: handle possibility of gate/segment descriptor
 563
 564     struct code_desc_lgcy * entry;
 565     entry = (struct code_desc_long *)base_hva;
 566     V3_Print(core->vm_info, core, "= GDT ========\n");
 567     V3_Print(core->vm_info, core, "  # | hex | limit |     base |  c/d | dpl | p\n");
 568     for (i = 0; i < NUM_GDT_ENTRIES; i++) {
 569         V3_Print(core->vm_info, core, "%3d | %3x | %x%04x | %02x%02x%04x | %s |   %x | %x\n", i, i,
 570                 entry->limit_hi, entry->limit_lo,
 571                 entry->base_hi, entry->base_mid, entry->base_lo,
 572                 cd[entry->one1], entry->dpl, entry->p);
 573         entry++;
 574     }
 575 }
 576
 577 void v3_print_gp_error(struct guest_info * core, addr_t exit_info1) {
 578     struct selector_error_code * error = (struct selector_error_code *)(&exit_info1);
 579
 580     V3_Print(core->vm_info, core, "      selector index: %x, TI: %x, IDT: %x, EXT: %x (error=%llx)\n",
 581             error->index, error->ti, error->idt, error->ext,
 582             (unsigned long long)exit_info1);
 583 }
 584
 585 #elif __V3_64BIT__
 586
 587 void v3_print_GPRs(struct guest_info * core) {
 588     struct v3_gprs * regs = &(core->vm_regs);
 589     int i = 0;
 590     v3_reg_t * reg_ptr;
 591     char * reg_names[] = { "RDI", "RSI", "RBP", "RSP", "RBX", "RDX", "RCX", "RAX", \
 592                            "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15", NULL};
 593
 594     reg_ptr = (v3_reg_t *)regs;
 595
 596     V3_Print(core->vm_info, core, "64 bit GPRs:\n");
 597
 598     for (i = 0; reg_names[i] != NULL; i++) {
 599         V3_Print(core->vm_info, core, "\t%s=0x%p (at %p)\n", reg_names[i], (void *)(addr_t)reg_ptr[i], &(reg_ptr[i]));
 600     }
 601 }
 602
 603 void v3_print_idt(struct guest_info * core, addr_t idtr_base) {
 604     addr_t base_hva;
 605
 606     if (v3_get_vm_cpu_mode(core)!=LONG) {
 607         V3_Print(core->vm_info, core, "= IDT ========\n");
 608         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 609         return;
 610     }
 611
 612     if (core->mem_mode == PHYSICAL_MEM) {
 613         v3_gpa_to_hva(core,
 614                       get_addr_linear(core, idtr_base, &(core->segments.cs)),
 615                       &base_hva);
 616     } else if (core->mem_mode == VIRTUAL_MEM) {
 617         v3_gva_to_hva(core,
 618                       get_addr_linear(core, idtr_base, &(core->segments.cs)),
 619                       &base_hva);
 620     }
 621
 622     // SANITY CHECK
 623     if (idtr_base != get_addr_linear(core, idtr_base, &(core->segments.cs))) {
 624         PrintError(core->vm_info, core, "idtr base address != linear translation, might be something funky with cs\n");
 625     }
 626
 627     if (!base_hva) {
 628         PrintError(core->vm_info, core, "idtr address does not translate!  skipping.\n");
 629         return ;
 630     }
 631
 632     int i;
 633     char *types[16] = {"ILGL","ILGL"," LDT","ILGL","ILGL","ILGL","ILGL","ILGL","ILGL",
 634         "aTSS","ILGL","bTSS","call","ILGL","intr","trap"};
 635
 636     struct int_trap_gate_long * entry;
 637     entry = (struct int_trap_gate_long *)base_hva;
 638     V3_Print(core->vm_info, core, "= IDT ========\n");
 639     V3_Print(core->vm_info, core, "  # | hex | selector | si:ti:rpl |           offset | type | dpl | s | r | p\n");
 640     for (i = 0; i < NUM_IDT_ENTRIES; i++) {
 641         uint32_t tmp = entry->selector;
 642         struct segment_selector * seg = (struct segment_selector *)(&tmp);
 643         V3_Print(core->vm_info, core, "%3d | %3x |     %04x |   %03x:%x:%x | %08x%04x%04x | %s |   %x | %x | %x | %x\n", i, i,
 644                 entry->selector,
 645                 seg->index, seg->ti, seg->rpl,
 646                 entry->offset_hi, entry->offset_mid, entry->offset_lo,
 647                 types[entry->type], entry->dpl, entry->s,
 648                 entry->s, entry->p);
 649         entry++;
 650     }
 651 }
 652
 653 void v3_print_gdt(struct guest_info * core, addr_t gdtr_base) {
 654     addr_t base_hva;
 655
 656     if (v3_get_vm_cpu_mode(core)!=LONG) {
 657         V3_Print(core->vm_info, core, "= GDT ========\n");
 658         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 659         return;
 660     }
 661
 662     if (core->mem_mode == PHYSICAL_MEM) {
 663         v3_gpa_to_hva(core,
 664                       get_addr_linear(core, gdtr_base, &(core->segments.cs)),
 665                       &base_hva);
 666     } else if (core->mem_mode == VIRTUAL_MEM) {
 667         v3_gva_to_hva(core,
 668                       get_addr_linear(core, gdtr_base, &(core->segments.cs)),
 669                       &base_hva);
 670     }
 671
 672     // SANITY CHECK
 673     if (gdtr_base != get_addr_linear(core, gdtr_base, &(core->segments.cs))) {
 674         PrintError(core->vm_info, core, "gdtr base address != linear translation, might be something funky with cs\n");
 675     }
 676
 677     if (!base_hva) {
 678         PrintError(core->vm_info, core, "gdtr address does not translate!  skipping.\n");
 679         return ;
 680     }
 681
 682     int i;
 683     char* cd[2] = {"data","code"};
 684     // TODO: handle possibility of gate/segment descriptor
 685
 686     struct code_desc_long * entry;
 687     entry = (struct code_desc_long *)base_hva;
 688     V3_Print(core->vm_info, core, "= GDT ========\n");
 689     V3_Print(core->vm_info, core, "  # | hex | limit |     base |  c/d | dpl | p\n");
 690     for (i = 0; i < NUM_GDT_ENTRIES; i++) {
 691         V3_Print(core->vm_info, core, "%3d | %3x | %x%04x | %02x%02x%04x | %s |   %x | %x\n", i, i,
 692                 entry->limit_hi, entry->limit_lo,
 693                 entry->base_hi, entry->base_mid, entry->base_lo,
 694                 cd[entry->one1], entry->dpl, entry->p);
 695         entry++;
 696     }
 697 }
 698
 699 void v3_print_ldt(struct guest_info * core, addr_t ldtr_base) {
 700     addr_t base_hva;
 701
 702     if (v3_get_vm_cpu_mode(core)!=LONG) {
 703         V3_Print(core->vm_info, core, "= LDT ========\n");
 704         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 705         return;
 706     }
 707
 708     V3_Print(core->vm_info, core, "= LDT ========\n");
 709
 710     if (ldtr_base == 0) {
 711         V3_Print(core->vm_info, core, "        (no LDT is installed)\n");
 712         return;
 713     }
 714
 715     if (core->mem_mode == PHYSICAL_MEM) {
 716         v3_gpa_to_hva(core,
 717                       get_addr_linear(core, ldtr_base, &(core->segments.cs)),
 718                       &base_hva);
 719     } else if (core->mem_mode == VIRTUAL_MEM) {
 720         v3_gva_to_hva(core,
 721                       get_addr_linear(core, ldtr_base, &(core->segments.cs)),
 722                       &base_hva);
 723     }
 724
 725     // SANITY CHECK
 726     if (ldtr_base != get_addr_linear(core, ldtr_base, &(core->segments.cs))) {
 727         PrintError(core->vm_info, core, "ldtr base address != linear translation, might be something funky with cs\n");
 728     }
 729
 730     if (!base_hva) {
 731         PrintError(core->vm_info, core, "ldtr address does not translate!  skipping.\n");
 732         return ;
 733     }
 734
 735     int i;
 736     char* cd[2] = {"data","code"};
 737     // TODO: handle possibility of gate/segment descriptor
 738
 739     struct code_desc_long * entry;
 740     entry = (struct code_desc_long *)base_hva;
 741     V3_Print(core->vm_info, core, "  # | hex | limit |     base |  c/d | dpl | p\n");
 742     for (i = 0; i < NUM_LDT_ENTRIES; i++) {
 743         V3_Print(core->vm_info, core, "%3d | %3x | %x%04x | %02x%02x%04x | %s |   %x | %x\n", i, i,
 744                 entry->limit_hi, entry->limit_lo,
 745                 entry->base_hi, entry->base_mid, entry->base_lo,
 746                 cd[entry->one1], entry->dpl, entry->p);
 747         entry++;
 748     }
 749 }
 750
 751 void v3_print_tss(struct guest_info * core, addr_t tr_base) {
 752     addr_t base_hva;
 753     struct tss_long *t;
 754
 755     if (v3_get_vm_cpu_mode(core)!=LONG) {
 756         V3_Print(core->vm_info, core, "= TSS ========\n");
 757         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 758         return;
 759     }
 760
 761     V3_Print(core->vm_info, core, "= TSS ========\n");
 762
 763     if (tr_base == 0) {
 764         V3_Print(core->vm_info, core, "        (no TSS is installed)\n");
 765         return;
 766     }
 767
 768     if (core->mem_mode == PHYSICAL_MEM) {
 769         v3_gpa_to_hva(core,
 770                       get_addr_linear(core, tr_base, &(core->segments.cs)),
 771                       &base_hva);
 772     } else if (core->mem_mode == VIRTUAL_MEM) {
 773         v3_gva_to_hva(core,
 774                       get_addr_linear(core, tr_base, &(core->segments.cs)),
 775                       &base_hva);
 776     }
 777
 778     // SANITY CHECK
 779     if (tr_base != get_addr_linear(core, tr_base, &(core->segments.cs))) {
 780         PrintError(core->vm_info, core, "tr base address != linear translation, might be something funky with cs\n");
 781     }
 782
 783     if (!base_hva) {
 784         PrintError(core->vm_info, core, "tr address does not translate!  skipping.\n");
 785         return ;
 786     }
 787
 788     t=(struct tss_long*)base_hva;
 789
 790     V3_Print(core->vm_info, core," res1 : 0x%llx\n", (uint64_t) t->res1);
 791     V3_Print(core->vm_info, core," rsp0 : 0x%llx\n", t->rsp0);
 792     V3_Print(core->vm_info, core," rsp1 : 0x%llx\n", t->rsp1);
 793     V3_Print(core->vm_info, core," rsp2 : 0x%llx\n", t->rsp2);
 794     V3_Print(core->vm_info, core," res2 : 0x%llx\n", t->res2);
 795     V3_Print(core->vm_info, core," ist1 : 0x%llx\n", t->ist1);
 796     V3_Print(core->vm_info, core," ist2 : 0x%llx\n", t->ist2);
 797     V3_Print(core->vm_info, core," ist3 : 0x%llx\n", t->ist3);
 798     V3_Print(core->vm_info, core," ist4 : 0x%llx\n", t->ist4);
 799     V3_Print(core->vm_info, core," ist5 : 0x%llx\n", t->ist5);
 800     V3_Print(core->vm_info, core," ist6 : 0x%llx\n", t->ist6);
 801     V3_Print(core->vm_info, core," ist7 : 0x%llx\n", t->ist7);
 802     V3_Print(core->vm_info, core," res3 : 0x%llx\n", t->res3);
 803     V3_Print(core->vm_info, core," res4 : 0x%llx\n", (uint64_t) t->res4);
 804     V3_Print(core->vm_info, core," iomap_base : 0x%llx\n", (uint64_t) t->iomap_base);
 805     V3_Print(core->vm_info, core," (following io permission bitmap not currently printed)\n");
 806
 807 }
 808
 809 void v3_print_gp_error(struct guest_info * core, addr_t exit_info1) {
 810     struct selector_error_code * error = (struct selector_error_code *)(&exit_info1);
 811
 812     if (v3_get_vm_cpu_mode(core)!=LONG) {
 813         V3_Print(core->vm_info, core, "= IDT ========\n");
 814         V3_Print(core->vm_info, core, "(currently only supported in long mode)\n");
 815         return;
 816     }
 817
 818     V3_Print(core->vm_info, core, "      selector index: %x, TI: %x, IDT: %x, EXT: %x (error=%llx)\n",
 819             error->index, error->ti, error->idt, error->ext,
 820             (unsigned long long)exit_info1);
 821 }
 822
 823 #endif