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