1 /*- 2 * Copyright (c) 1992 Terrence R. Lambert. 3 * Copyright (c) 1982, 1987, 1990 The Regents of the University of California. 4 * Copyright (c) 1997 KATO Takenori. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: Id: machdep.c,v 1.193 1996/06/18 01:22:04 bde Exp 39 */ 40 41 #include <sys/cdefs.h> 42 __FBSDID("$FreeBSD$"); 43 44 #include "opt_cpu.h" 45 46 #include <sys/param.h> 47 #include <sys/bus.h> 48 #include <sys/cpu.h> 49 #include <sys/eventhandler.h> 50 #include <sys/limits.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/sysctl.h> 54 #include <sys/power.h> 55 56 #include <machine/asmacros.h> 57 #include <machine/clock.h> 58 #include <machine/cputypes.h> 59 #include <machine/frame.h> 60 #include <machine/intr_machdep.h> 61 #include <machine/md_var.h> 62 #include <machine/segments.h> 63 #include <machine/specialreg.h> 64 65 #include <amd64/vmm/intel/vmx_controls.h> 66 #include <x86/isa/icu.h> 67 #include <x86/vmware.h> 68 69 #ifdef __i386__ 70 #define IDENTBLUE_CYRIX486 0 71 #define IDENTBLUE_IBMCPU 1 72 #define IDENTBLUE_CYRIXM2 2 73 74 static void identifycyrix(void); 75 static void print_transmeta_info(void); 76 #endif 77 static u_int find_cpu_vendor_id(void); 78 static void print_AMD_info(void); 79 static void print_INTEL_info(void); 80 static void print_INTEL_TLB(u_int data); 81 static void print_hypervisor_info(void); 82 static void print_svm_info(void); 83 static void print_via_padlock_info(void); 84 static void print_vmx_info(void); 85 86 int cpu_class; 87 char machine[] = MACHINE; 88 89 #ifdef __amd64__ 90 #ifdef SCTL_MASK32 91 extern int adaptive_machine_arch; 92 #endif 93 94 static int 95 sysctl_hw_machine(SYSCTL_HANDLER_ARGS) 96 { 97 #ifdef SCTL_MASK32 98 static const char machine32[] = "i386"; 99 #endif 100 int error; 101 102 #ifdef SCTL_MASK32 103 if ((req->flags & SCTL_MASK32) != 0 && adaptive_machine_arch) 104 error = SYSCTL_OUT(req, machine32, sizeof(machine32)); 105 else 106 #endif 107 error = SYSCTL_OUT(req, machine, sizeof(machine)); 108 return (error); 109 110 } 111 SYSCTL_PROC(_hw, HW_MACHINE, machine, CTLTYPE_STRING | CTLFLAG_RD, 112 NULL, 0, sysctl_hw_machine, "A", "Machine class"); 113 #else 114 SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, 115 machine, 0, "Machine class"); 116 #endif 117 118 static char cpu_model[128]; 119 SYSCTL_STRING(_hw, HW_MODEL, model, CTLFLAG_RD, 120 cpu_model, 0, "Machine model"); 121 122 static int hw_clockrate; 123 SYSCTL_INT(_hw, OID_AUTO, clockrate, CTLFLAG_RD, 124 &hw_clockrate, 0, "CPU instruction clock rate"); 125 126 u_int hv_high; 127 char hv_vendor[16]; 128 SYSCTL_STRING(_hw, OID_AUTO, hv_vendor, CTLFLAG_RD, hv_vendor, 0, 129 "Hypervisor vendor"); 130 131 static eventhandler_tag tsc_post_tag; 132 133 static char cpu_brand[48]; 134 135 #ifdef __i386__ 136 #define MAX_BRAND_INDEX 8 137 138 static const char *cpu_brandtable[MAX_BRAND_INDEX + 1] = { 139 NULL, /* No brand */ 140 "Intel Celeron", 141 "Intel Pentium III", 142 "Intel Pentium III Xeon", 143 NULL, 144 NULL, 145 NULL, 146 NULL, 147 "Intel Pentium 4" 148 }; 149 #endif 150 151 static struct { 152 char *cpu_name; 153 int cpu_class; 154 } cpus[] = { 155 #ifdef __i386__ 156 { "Intel 80286", CPUCLASS_286 }, /* CPU_286 */ 157 { "i386SX", CPUCLASS_386 }, /* CPU_386SX */ 158 { "i386DX", CPUCLASS_386 }, /* CPU_386 */ 159 { "i486SX", CPUCLASS_486 }, /* CPU_486SX */ 160 { "i486DX", CPUCLASS_486 }, /* CPU_486 */ 161 { "Pentium", CPUCLASS_586 }, /* CPU_586 */ 162 { "Cyrix 486", CPUCLASS_486 }, /* CPU_486DLC */ 163 { "Pentium Pro", CPUCLASS_686 }, /* CPU_686 */ 164 { "Cyrix 5x86", CPUCLASS_486 }, /* CPU_M1SC */ 165 { "Cyrix 6x86", CPUCLASS_486 }, /* CPU_M1 */ 166 { "Blue Lightning", CPUCLASS_486 }, /* CPU_BLUE */ 167 { "Cyrix 6x86MX", CPUCLASS_686 }, /* CPU_M2 */ 168 { "NexGen 586", CPUCLASS_386 }, /* CPU_NX586 (XXX) */ 169 { "Cyrix 486S/DX", CPUCLASS_486 }, /* CPU_CY486DX */ 170 { "Pentium II", CPUCLASS_686 }, /* CPU_PII */ 171 { "Pentium III", CPUCLASS_686 }, /* CPU_PIII */ 172 { "Pentium 4", CPUCLASS_686 }, /* CPU_P4 */ 173 #else 174 { "Clawhammer", CPUCLASS_K8 }, /* CPU_CLAWHAMMER */ 175 { "Sledgehammer", CPUCLASS_K8 }, /* CPU_SLEDGEHAMMER */ 176 #endif 177 }; 178 179 static struct { 180 char *vendor; 181 u_int vendor_id; 182 } cpu_vendors[] = { 183 { INTEL_VENDOR_ID, CPU_VENDOR_INTEL }, /* GenuineIntel */ 184 { AMD_VENDOR_ID, CPU_VENDOR_AMD }, /* AuthenticAMD */ 185 { CENTAUR_VENDOR_ID, CPU_VENDOR_CENTAUR }, /* CentaurHauls */ 186 #ifdef __i386__ 187 { NSC_VENDOR_ID, CPU_VENDOR_NSC }, /* Geode by NSC */ 188 { CYRIX_VENDOR_ID, CPU_VENDOR_CYRIX }, /* CyrixInstead */ 189 { TRANSMETA_VENDOR_ID, CPU_VENDOR_TRANSMETA }, /* GenuineTMx86 */ 190 { SIS_VENDOR_ID, CPU_VENDOR_SIS }, /* SiS SiS SiS */ 191 { UMC_VENDOR_ID, CPU_VENDOR_UMC }, /* UMC UMC UMC */ 192 { NEXGEN_VENDOR_ID, CPU_VENDOR_NEXGEN }, /* NexGenDriven */ 193 { RISE_VENDOR_ID, CPU_VENDOR_RISE }, /* RiseRiseRise */ 194 #if 0 195 /* XXX CPUID 8000_0000h and 8086_0000h, not 0000_0000h */ 196 { "TransmetaCPU", CPU_VENDOR_TRANSMETA }, 197 #endif 198 #endif 199 }; 200 201 void 202 printcpuinfo(void) 203 { 204 u_int regs[4], i; 205 char *brand; 206 207 cpu_class = cpus[cpu].cpu_class; 208 printf("CPU: "); 209 strncpy(cpu_model, cpus[cpu].cpu_name, sizeof (cpu_model)); 210 211 /* Check for extended CPUID information and a processor name. */ 212 if (cpu_exthigh >= 0x80000004) { 213 brand = cpu_brand; 214 for (i = 0x80000002; i < 0x80000005; i++) { 215 do_cpuid(i, regs); 216 memcpy(brand, regs, sizeof(regs)); 217 brand += sizeof(regs); 218 } 219 } 220 221 switch (cpu_vendor_id) { 222 case CPU_VENDOR_INTEL: 223 #ifdef __i386__ 224 if ((cpu_id & 0xf00) > 0x300) { 225 u_int brand_index; 226 227 cpu_model[0] = '\0'; 228 229 switch (cpu_id & 0x3000) { 230 case 0x1000: 231 strcpy(cpu_model, "Overdrive "); 232 break; 233 case 0x2000: 234 strcpy(cpu_model, "Dual "); 235 break; 236 } 237 238 switch (cpu_id & 0xf00) { 239 case 0x400: 240 strcat(cpu_model, "i486 "); 241 /* Check the particular flavor of 486 */ 242 switch (cpu_id & 0xf0) { 243 case 0x00: 244 case 0x10: 245 strcat(cpu_model, "DX"); 246 break; 247 case 0x20: 248 strcat(cpu_model, "SX"); 249 break; 250 case 0x30: 251 strcat(cpu_model, "DX2"); 252 break; 253 case 0x40: 254 strcat(cpu_model, "SL"); 255 break; 256 case 0x50: 257 strcat(cpu_model, "SX2"); 258 break; 259 case 0x70: 260 strcat(cpu_model, 261 "DX2 Write-Back Enhanced"); 262 break; 263 case 0x80: 264 strcat(cpu_model, "DX4"); 265 break; 266 } 267 break; 268 case 0x500: 269 /* Check the particular flavor of 586 */ 270 strcat(cpu_model, "Pentium"); 271 switch (cpu_id & 0xf0) { 272 case 0x00: 273 strcat(cpu_model, " A-step"); 274 break; 275 case 0x10: 276 strcat(cpu_model, "/P5"); 277 break; 278 case 0x20: 279 strcat(cpu_model, "/P54C"); 280 break; 281 case 0x30: 282 strcat(cpu_model, "/P24T"); 283 break; 284 case 0x40: 285 strcat(cpu_model, "/P55C"); 286 break; 287 case 0x70: 288 strcat(cpu_model, "/P54C"); 289 break; 290 case 0x80: 291 strcat(cpu_model, "/P55C (quarter-micron)"); 292 break; 293 default: 294 /* nothing */ 295 break; 296 } 297 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 298 /* 299 * XXX - If/when Intel fixes the bug, this 300 * should also check the version of the 301 * CPU, not just that it's a Pentium. 302 */ 303 has_f00f_bug = 1; 304 #endif 305 break; 306 case 0x600: 307 /* Check the particular flavor of 686 */ 308 switch (cpu_id & 0xf0) { 309 case 0x00: 310 strcat(cpu_model, "Pentium Pro A-step"); 311 break; 312 case 0x10: 313 strcat(cpu_model, "Pentium Pro"); 314 break; 315 case 0x30: 316 case 0x50: 317 case 0x60: 318 strcat(cpu_model, 319 "Pentium II/Pentium II Xeon/Celeron"); 320 cpu = CPU_PII; 321 break; 322 case 0x70: 323 case 0x80: 324 case 0xa0: 325 case 0xb0: 326 strcat(cpu_model, 327 "Pentium III/Pentium III Xeon/Celeron"); 328 cpu = CPU_PIII; 329 break; 330 default: 331 strcat(cpu_model, "Unknown 80686"); 332 break; 333 } 334 break; 335 case 0xf00: 336 strcat(cpu_model, "Pentium 4"); 337 cpu = CPU_P4; 338 break; 339 default: 340 strcat(cpu_model, "unknown"); 341 break; 342 } 343 344 /* 345 * If we didn't get a brand name from the extended 346 * CPUID, try to look it up in the brand table. 347 */ 348 if (cpu_high > 0 && *cpu_brand == '\0') { 349 brand_index = cpu_procinfo & CPUID_BRAND_INDEX; 350 if (brand_index <= MAX_BRAND_INDEX && 351 cpu_brandtable[brand_index] != NULL) 352 strcpy(cpu_brand, 353 cpu_brandtable[brand_index]); 354 } 355 } 356 #else 357 /* Please make up your mind folks! */ 358 strcat(cpu_model, "EM64T"); 359 #endif 360 break; 361 case CPU_VENDOR_AMD: 362 /* 363 * Values taken from AMD Processor Recognition 364 * http://www.amd.com/K6/k6docs/pdf/20734g.pdf 365 * (also describes ``Features'' encodings. 366 */ 367 strcpy(cpu_model, "AMD "); 368 #ifdef __i386__ 369 switch (cpu_id & 0xFF0) { 370 case 0x410: 371 strcat(cpu_model, "Standard Am486DX"); 372 break; 373 case 0x430: 374 strcat(cpu_model, "Enhanced Am486DX2 Write-Through"); 375 break; 376 case 0x470: 377 strcat(cpu_model, "Enhanced Am486DX2 Write-Back"); 378 break; 379 case 0x480: 380 strcat(cpu_model, "Enhanced Am486DX4/Am5x86 Write-Through"); 381 break; 382 case 0x490: 383 strcat(cpu_model, "Enhanced Am486DX4/Am5x86 Write-Back"); 384 break; 385 case 0x4E0: 386 strcat(cpu_model, "Am5x86 Write-Through"); 387 break; 388 case 0x4F0: 389 strcat(cpu_model, "Am5x86 Write-Back"); 390 break; 391 case 0x500: 392 strcat(cpu_model, "K5 model 0"); 393 break; 394 case 0x510: 395 strcat(cpu_model, "K5 model 1"); 396 break; 397 case 0x520: 398 strcat(cpu_model, "K5 PR166 (model 2)"); 399 break; 400 case 0x530: 401 strcat(cpu_model, "K5 PR200 (model 3)"); 402 break; 403 case 0x560: 404 strcat(cpu_model, "K6"); 405 break; 406 case 0x570: 407 strcat(cpu_model, "K6 266 (model 1)"); 408 break; 409 case 0x580: 410 strcat(cpu_model, "K6-2"); 411 break; 412 case 0x590: 413 strcat(cpu_model, "K6-III"); 414 break; 415 case 0x5a0: 416 strcat(cpu_model, "Geode LX"); 417 break; 418 default: 419 strcat(cpu_model, "Unknown"); 420 break; 421 } 422 #else 423 if ((cpu_id & 0xf00) == 0xf00) 424 strcat(cpu_model, "AMD64 Processor"); 425 else 426 strcat(cpu_model, "Unknown"); 427 #endif 428 break; 429 #ifdef __i386__ 430 case CPU_VENDOR_CYRIX: 431 strcpy(cpu_model, "Cyrix "); 432 switch (cpu_id & 0xff0) { 433 case 0x440: 434 strcat(cpu_model, "MediaGX"); 435 break; 436 case 0x520: 437 strcat(cpu_model, "6x86"); 438 break; 439 case 0x540: 440 cpu_class = CPUCLASS_586; 441 strcat(cpu_model, "GXm"); 442 break; 443 case 0x600: 444 strcat(cpu_model, "6x86MX"); 445 break; 446 default: 447 /* 448 * Even though CPU supports the cpuid 449 * instruction, it can be disabled. 450 * Therefore, this routine supports all Cyrix 451 * CPUs. 452 */ 453 switch (cyrix_did & 0xf0) { 454 case 0x00: 455 switch (cyrix_did & 0x0f) { 456 case 0x00: 457 strcat(cpu_model, "486SLC"); 458 break; 459 case 0x01: 460 strcat(cpu_model, "486DLC"); 461 break; 462 case 0x02: 463 strcat(cpu_model, "486SLC2"); 464 break; 465 case 0x03: 466 strcat(cpu_model, "486DLC2"); 467 break; 468 case 0x04: 469 strcat(cpu_model, "486SRx"); 470 break; 471 case 0x05: 472 strcat(cpu_model, "486DRx"); 473 break; 474 case 0x06: 475 strcat(cpu_model, "486SRx2"); 476 break; 477 case 0x07: 478 strcat(cpu_model, "486DRx2"); 479 break; 480 case 0x08: 481 strcat(cpu_model, "486SRu"); 482 break; 483 case 0x09: 484 strcat(cpu_model, "486DRu"); 485 break; 486 case 0x0a: 487 strcat(cpu_model, "486SRu2"); 488 break; 489 case 0x0b: 490 strcat(cpu_model, "486DRu2"); 491 break; 492 default: 493 strcat(cpu_model, "Unknown"); 494 break; 495 } 496 break; 497 case 0x10: 498 switch (cyrix_did & 0x0f) { 499 case 0x00: 500 strcat(cpu_model, "486S"); 501 break; 502 case 0x01: 503 strcat(cpu_model, "486S2"); 504 break; 505 case 0x02: 506 strcat(cpu_model, "486Se"); 507 break; 508 case 0x03: 509 strcat(cpu_model, "486S2e"); 510 break; 511 case 0x0a: 512 strcat(cpu_model, "486DX"); 513 break; 514 case 0x0b: 515 strcat(cpu_model, "486DX2"); 516 break; 517 case 0x0f: 518 strcat(cpu_model, "486DX4"); 519 break; 520 default: 521 strcat(cpu_model, "Unknown"); 522 break; 523 } 524 break; 525 case 0x20: 526 if ((cyrix_did & 0x0f) < 8) 527 strcat(cpu_model, "6x86"); /* Where did you get it? */ 528 else 529 strcat(cpu_model, "5x86"); 530 break; 531 case 0x30: 532 strcat(cpu_model, "6x86"); 533 break; 534 case 0x40: 535 if ((cyrix_did & 0xf000) == 0x3000) { 536 cpu_class = CPUCLASS_586; 537 strcat(cpu_model, "GXm"); 538 } else 539 strcat(cpu_model, "MediaGX"); 540 break; 541 case 0x50: 542 strcat(cpu_model, "6x86MX"); 543 break; 544 case 0xf0: 545 switch (cyrix_did & 0x0f) { 546 case 0x0d: 547 strcat(cpu_model, "Overdrive CPU"); 548 break; 549 case 0x0e: 550 strcpy(cpu_model, "Texas Instruments 486SXL"); 551 break; 552 case 0x0f: 553 strcat(cpu_model, "486SLC/DLC"); 554 break; 555 default: 556 strcat(cpu_model, "Unknown"); 557 break; 558 } 559 break; 560 default: 561 strcat(cpu_model, "Unknown"); 562 break; 563 } 564 break; 565 } 566 break; 567 case CPU_VENDOR_RISE: 568 strcpy(cpu_model, "Rise "); 569 switch (cpu_id & 0xff0) { 570 case 0x500: /* 6401 and 6441 (Kirin) */ 571 case 0x520: /* 6510 (Lynx) */ 572 strcat(cpu_model, "mP6"); 573 break; 574 default: 575 strcat(cpu_model, "Unknown"); 576 } 577 break; 578 #endif 579 case CPU_VENDOR_CENTAUR: 580 #ifdef __i386__ 581 switch (cpu_id & 0xff0) { 582 case 0x540: 583 strcpy(cpu_model, "IDT WinChip C6"); 584 break; 585 case 0x580: 586 strcpy(cpu_model, "IDT WinChip 2"); 587 break; 588 case 0x590: 589 strcpy(cpu_model, "IDT WinChip 3"); 590 break; 591 case 0x660: 592 strcpy(cpu_model, "VIA C3 Samuel"); 593 break; 594 case 0x670: 595 if (cpu_id & 0x8) 596 strcpy(cpu_model, "VIA C3 Ezra"); 597 else 598 strcpy(cpu_model, "VIA C3 Samuel 2"); 599 break; 600 case 0x680: 601 strcpy(cpu_model, "VIA C3 Ezra-T"); 602 break; 603 case 0x690: 604 strcpy(cpu_model, "VIA C3 Nehemiah"); 605 break; 606 case 0x6a0: 607 case 0x6d0: 608 strcpy(cpu_model, "VIA C7 Esther"); 609 break; 610 case 0x6f0: 611 strcpy(cpu_model, "VIA Nano"); 612 break; 613 default: 614 strcpy(cpu_model, "VIA/IDT Unknown"); 615 } 616 #else 617 strcpy(cpu_model, "VIA "); 618 if ((cpu_id & 0xff0) == 0x6f0) 619 strcat(cpu_model, "Nano Processor"); 620 else 621 strcat(cpu_model, "Unknown"); 622 #endif 623 break; 624 #ifdef __i386__ 625 case CPU_VENDOR_IBM: 626 strcpy(cpu_model, "Blue Lightning CPU"); 627 break; 628 case CPU_VENDOR_NSC: 629 switch (cpu_id & 0xff0) { 630 case 0x540: 631 strcpy(cpu_model, "Geode SC1100"); 632 cpu = CPU_GEODE1100; 633 break; 634 default: 635 strcpy(cpu_model, "Geode/NSC unknown"); 636 break; 637 } 638 break; 639 #endif 640 default: 641 strcat(cpu_model, "Unknown"); 642 break; 643 } 644 645 /* 646 * Replace cpu_model with cpu_brand minus leading spaces if 647 * we have one. 648 */ 649 brand = cpu_brand; 650 while (*brand == ' ') 651 ++brand; 652 if (*brand != '\0') 653 strcpy(cpu_model, brand); 654 655 printf("%s (", cpu_model); 656 if (tsc_freq != 0) { 657 hw_clockrate = (tsc_freq + 5000) / 1000000; 658 printf("%jd.%02d-MHz ", 659 (intmax_t)(tsc_freq + 4999) / 1000000, 660 (u_int)((tsc_freq + 4999) / 10000) % 100); 661 } 662 switch(cpu_class) { 663 #ifdef __i386__ 664 case CPUCLASS_286: 665 printf("286"); 666 break; 667 case CPUCLASS_386: 668 printf("386"); 669 break; 670 #if defined(I486_CPU) 671 case CPUCLASS_486: 672 printf("486"); 673 break; 674 #endif 675 #if defined(I586_CPU) 676 case CPUCLASS_586: 677 printf("586"); 678 break; 679 #endif 680 #if defined(I686_CPU) 681 case CPUCLASS_686: 682 printf("686"); 683 break; 684 #endif 685 #else 686 case CPUCLASS_K8: 687 printf("K8"); 688 break; 689 #endif 690 default: 691 printf("Unknown"); /* will panic below... */ 692 } 693 printf("-class CPU)\n"); 694 if (*cpu_vendor) 695 printf(" Origin=\"%s\"", cpu_vendor); 696 if (cpu_id) 697 printf(" Id=0x%x", cpu_id); 698 699 if (cpu_vendor_id == CPU_VENDOR_INTEL || 700 cpu_vendor_id == CPU_VENDOR_AMD || 701 cpu_vendor_id == CPU_VENDOR_CENTAUR || 702 #ifdef __i386__ 703 cpu_vendor_id == CPU_VENDOR_TRANSMETA || 704 cpu_vendor_id == CPU_VENDOR_RISE || 705 cpu_vendor_id == CPU_VENDOR_NSC || 706 (cpu_vendor_id == CPU_VENDOR_CYRIX && ((cpu_id & 0xf00) > 0x500)) || 707 #endif 708 0) { 709 printf(" Family=0x%x", CPUID_TO_FAMILY(cpu_id)); 710 printf(" Model=0x%x", CPUID_TO_MODEL(cpu_id)); 711 printf(" Stepping=%u", cpu_id & CPUID_STEPPING); 712 #ifdef __i386__ 713 if (cpu_vendor_id == CPU_VENDOR_CYRIX) 714 printf("\n DIR=0x%04x", cyrix_did); 715 #endif 716 717 /* 718 * AMD CPUID Specification 719 * http://support.amd.com/us/Embedded_TechDocs/25481.pdf 720 * 721 * Intel Processor Identification and CPUID Instruction 722 * http://www.intel.com/assets/pdf/appnote/241618.pdf 723 */ 724 if (cpu_high > 0) { 725 726 /* 727 * Here we should probably set up flags indicating 728 * whether or not various features are available. 729 * The interesting ones are probably VME, PSE, PAE, 730 * and PGE. The code already assumes without bothering 731 * to check that all CPUs >= Pentium have a TSC and 732 * MSRs. 733 */ 734 printf("\n Features=0x%b", cpu_feature, 735 "\020" 736 "\001FPU" /* Integral FPU */ 737 "\002VME" /* Extended VM86 mode support */ 738 "\003DE" /* Debugging Extensions (CR4.DE) */ 739 "\004PSE" /* 4MByte page tables */ 740 "\005TSC" /* Timestamp counter */ 741 "\006MSR" /* Machine specific registers */ 742 "\007PAE" /* Physical address extension */ 743 "\010MCE" /* Machine Check support */ 744 "\011CX8" /* CMPEXCH8 instruction */ 745 "\012APIC" /* SMP local APIC */ 746 "\013oldMTRR" /* Previous implementation of MTRR */ 747 "\014SEP" /* Fast System Call */ 748 "\015MTRR" /* Memory Type Range Registers */ 749 "\016PGE" /* PG_G (global bit) support */ 750 "\017MCA" /* Machine Check Architecture */ 751 "\020CMOV" /* CMOV instruction */ 752 "\021PAT" /* Page attributes table */ 753 "\022PSE36" /* 36 bit address space support */ 754 "\023PN" /* Processor Serial number */ 755 "\024CLFLUSH" /* Has the CLFLUSH instruction */ 756 "\025<b20>" 757 "\026DTS" /* Debug Trace Store */ 758 "\027ACPI" /* ACPI support */ 759 "\030MMX" /* MMX instructions */ 760 "\031FXSR" /* FXSAVE/FXRSTOR */ 761 "\032SSE" /* Streaming SIMD Extensions */ 762 "\033SSE2" /* Streaming SIMD Extensions #2 */ 763 "\034SS" /* Self snoop */ 764 "\035HTT" /* Hyperthreading (see EBX bit 16-23) */ 765 "\036TM" /* Thermal Monitor clock slowdown */ 766 "\037IA64" /* CPU can execute IA64 instructions */ 767 "\040PBE" /* Pending Break Enable */ 768 ); 769 770 if (cpu_feature2 != 0) { 771 printf("\n Features2=0x%b", cpu_feature2, 772 "\020" 773 "\001SSE3" /* SSE3 */ 774 "\002PCLMULQDQ" /* Carry-Less Mul Quadword */ 775 "\003DTES64" /* 64-bit Debug Trace */ 776 "\004MON" /* MONITOR/MWAIT Instructions */ 777 "\005DS_CPL" /* CPL Qualified Debug Store */ 778 "\006VMX" /* Virtual Machine Extensions */ 779 "\007SMX" /* Safer Mode Extensions */ 780 "\010EST" /* Enhanced SpeedStep */ 781 "\011TM2" /* Thermal Monitor 2 */ 782 "\012SSSE3" /* SSSE3 */ 783 "\013CNXT-ID" /* L1 context ID available */ 784 "\014SDBG" /* IA32 silicon debug */ 785 "\015FMA" /* Fused Multiply Add */ 786 "\016CX16" /* CMPXCHG16B Instruction */ 787 "\017xTPR" /* Send Task Priority Messages*/ 788 "\020PDCM" /* Perf/Debug Capability MSR */ 789 "\021<b16>" 790 "\022PCID" /* Process-context Identifiers*/ 791 "\023DCA" /* Direct Cache Access */ 792 "\024SSE4.1" /* SSE 4.1 */ 793 "\025SSE4.2" /* SSE 4.2 */ 794 "\026x2APIC" /* xAPIC Extensions */ 795 "\027MOVBE" /* MOVBE Instruction */ 796 "\030POPCNT" /* POPCNT Instruction */ 797 "\031TSCDLT" /* TSC-Deadline Timer */ 798 "\032AESNI" /* AES Crypto */ 799 "\033XSAVE" /* XSAVE/XRSTOR States */ 800 "\034OSXSAVE" /* OS-Enabled State Management*/ 801 "\035AVX" /* Advanced Vector Extensions */ 802 "\036F16C" /* Half-precision conversions */ 803 "\037RDRAND" /* RDRAND Instruction */ 804 "\040HV" /* Hypervisor */ 805 ); 806 } 807 808 if (amd_feature != 0) { 809 printf("\n AMD Features=0x%b", amd_feature, 810 "\020" /* in hex */ 811 "\001<s0>" /* Same */ 812 "\002<s1>" /* Same */ 813 "\003<s2>" /* Same */ 814 "\004<s3>" /* Same */ 815 "\005<s4>" /* Same */ 816 "\006<s5>" /* Same */ 817 "\007<s6>" /* Same */ 818 "\010<s7>" /* Same */ 819 "\011<s8>" /* Same */ 820 "\012<s9>" /* Same */ 821 "\013<b10>" /* Undefined */ 822 "\014SYSCALL" /* Have SYSCALL/SYSRET */ 823 "\015<s12>" /* Same */ 824 "\016<s13>" /* Same */ 825 "\017<s14>" /* Same */ 826 "\020<s15>" /* Same */ 827 "\021<s16>" /* Same */ 828 "\022<s17>" /* Same */ 829 "\023<b18>" /* Reserved, unknown */ 830 "\024MP" /* Multiprocessor Capable */ 831 "\025NX" /* Has EFER.NXE, NX */ 832 "\026<b21>" /* Undefined */ 833 "\027MMX+" /* AMD MMX Extensions */ 834 "\030<s23>" /* Same */ 835 "\031<s24>" /* Same */ 836 "\032FFXSR" /* Fast FXSAVE/FXRSTOR */ 837 "\033Page1GB" /* 1-GB large page support */ 838 "\034RDTSCP" /* RDTSCP */ 839 "\035<b28>" /* Undefined */ 840 "\036LM" /* 64 bit long mode */ 841 "\0373DNow!+" /* AMD 3DNow! Extensions */ 842 "\0403DNow!" /* AMD 3DNow! */ 843 ); 844 } 845 846 if (amd_feature2 != 0) { 847 printf("\n AMD Features2=0x%b", amd_feature2, 848 "\020" 849 "\001LAHF" /* LAHF/SAHF in long mode */ 850 "\002CMP" /* CMP legacy */ 851 "\003SVM" /* Secure Virtual Mode */ 852 "\004ExtAPIC" /* Extended APIC register */ 853 "\005CR8" /* CR8 in legacy mode */ 854 "\006ABM" /* LZCNT instruction */ 855 "\007SSE4A" /* SSE4A */ 856 "\010MAS" /* Misaligned SSE mode */ 857 "\011Prefetch" /* 3DNow! Prefetch/PrefetchW */ 858 "\012OSVW" /* OS visible workaround */ 859 "\013IBS" /* Instruction based sampling */ 860 "\014XOP" /* XOP extended instructions */ 861 "\015SKINIT" /* SKINIT/STGI */ 862 "\016WDT" /* Watchdog timer */ 863 "\017<b14>" 864 "\020LWP" /* Lightweight Profiling */ 865 "\021FMA4" /* 4-operand FMA instructions */ 866 "\022TCE" /* Translation Cache Extension */ 867 "\023<b18>" 868 "\024NodeId" /* NodeId MSR support */ 869 "\025<b20>" 870 "\026TBM" /* Trailing Bit Manipulation */ 871 "\027Topology" /* Topology Extensions */ 872 "\030PCXC" /* Core perf count */ 873 "\031PNXC" /* NB perf count */ 874 "\032<b25>" 875 "\033DBE" /* Data Breakpoint extension */ 876 "\034PTSC" /* Performance TSC */ 877 "\035PL2I" /* L2I perf count */ 878 "\036<b29>" 879 "\037<b30>" 880 "\040<b31>" 881 ); 882 } 883 884 if (cpu_stdext_feature != 0) { 885 printf("\n Structured Extended Features=0x%b", 886 cpu_stdext_feature, 887 "\020" 888 /* RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE */ 889 "\001FSGSBASE" 890 "\002TSCADJ" 891 /* Bit Manipulation Instructions */ 892 "\004BMI1" 893 /* Hardware Lock Elision */ 894 "\005HLE" 895 /* Advanced Vector Instructions 2 */ 896 "\006AVX2" 897 /* Supervisor Mode Execution Prot. */ 898 "\010SMEP" 899 /* Bit Manipulation Instructions */ 900 "\011BMI2" 901 "\012ERMS" 902 /* Invalidate Processor Context ID */ 903 "\013INVPCID" 904 /* Restricted Transactional Memory */ 905 "\014RTM" 906 /* Intel Memory Protection Extensions */ 907 "\017MPX" 908 /* AVX512 Foundation */ 909 "\021AVX512F" 910 /* Enhanced NRBG */ 911 "\023RDSEED" 912 /* ADCX + ADOX */ 913 "\024ADX" 914 /* Supervisor Mode Access Prevention */ 915 "\025SMAP" 916 "\030CLFLUSHOPT" 917 "\032PROCTRACE" 918 "\033AVX512PF" 919 "\034AVX512ER" 920 "\035AVX512CD" 921 "\036SHA" 922 ); 923 } 924 925 if ((cpu_feature2 & CPUID2_XSAVE) != 0) { 926 cpuid_count(0xd, 0x1, regs); 927 if (regs[0] != 0) { 928 printf("\n XSAVE Features=0x%b", 929 regs[0], 930 "\020" 931 "\001XSAVEOPT" 932 "\002XSAVEC" 933 "\003XINUSE" 934 "\004XSAVES"); 935 } 936 } 937 938 if (via_feature_rng != 0 || via_feature_xcrypt != 0) 939 print_via_padlock_info(); 940 941 if (cpu_feature2 & CPUID2_VMX) 942 print_vmx_info(); 943 944 if (amd_feature2 & AMDID2_SVM) 945 print_svm_info(); 946 947 if ((cpu_feature & CPUID_HTT) && 948 cpu_vendor_id == CPU_VENDOR_AMD) 949 cpu_feature &= ~CPUID_HTT; 950 951 /* 952 * If this CPU supports P-state invariant TSC then 953 * mention the capability. 954 */ 955 if (tsc_is_invariant) { 956 printf("\n TSC: P-state invariant"); 957 if (tsc_perf_stat) 958 printf(", performance statistics"); 959 } 960 } 961 #ifdef __i386__ 962 } else if (cpu_vendor_id == CPU_VENDOR_CYRIX) { 963 printf(" DIR=0x%04x", cyrix_did); 964 printf(" Stepping=%u", (cyrix_did & 0xf000) >> 12); 965 printf(" Revision=%u", (cyrix_did & 0x0f00) >> 8); 966 #ifndef CYRIX_CACHE_REALLY_WORKS 967 if (cpu == CPU_M1 && (cyrix_did & 0xff00) < 0x1700) 968 printf("\n CPU cache: write-through mode"); 969 #endif 970 #endif 971 } 972 973 /* Avoid ugly blank lines: only print newline when we have to. */ 974 if (*cpu_vendor || cpu_id) 975 printf("\n"); 976 977 if (bootverbose) { 978 if (cpu_vendor_id == CPU_VENDOR_AMD) 979 print_AMD_info(); 980 else if (cpu_vendor_id == CPU_VENDOR_INTEL) 981 print_INTEL_info(); 982 #ifdef __i386__ 983 else if (cpu_vendor_id == CPU_VENDOR_TRANSMETA) 984 print_transmeta_info(); 985 #endif 986 } 987 988 print_hypervisor_info(); 989 } 990 991 void 992 panicifcpuunsupported(void) 993 { 994 995 #ifdef __i386__ 996 #if !defined(lint) 997 #if !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU) 998 #error This kernel is not configured for one of the supported CPUs 999 #endif 1000 #else /* lint */ 1001 #endif /* lint */ 1002 #else /* __amd64__ */ 1003 #ifndef HAMMER 1004 #error "You need to specify a cpu type" 1005 #endif 1006 #endif 1007 /* 1008 * Now that we have told the user what they have, 1009 * let them know if that machine type isn't configured. 1010 */ 1011 switch (cpu_class) { 1012 #ifdef __i386__ 1013 case CPUCLASS_286: /* a 286 should not make it this far, anyway */ 1014 case CPUCLASS_386: 1015 #if !defined(I486_CPU) 1016 case CPUCLASS_486: 1017 #endif 1018 #if !defined(I586_CPU) 1019 case CPUCLASS_586: 1020 #endif 1021 #if !defined(I686_CPU) 1022 case CPUCLASS_686: 1023 #endif 1024 #else /* __amd64__ */ 1025 case CPUCLASS_X86: 1026 #ifndef HAMMER 1027 case CPUCLASS_K8: 1028 #endif 1029 #endif 1030 panic("CPU class not configured"); 1031 default: 1032 break; 1033 } 1034 } 1035 1036 #ifdef __i386__ 1037 static volatile u_int trap_by_rdmsr; 1038 1039 /* 1040 * Special exception 6 handler. 1041 * The rdmsr instruction generates invalid opcodes fault on 486-class 1042 * Cyrix CPU. Stacked eip register points the rdmsr instruction in the 1043 * function identblue() when this handler is called. Stacked eip should 1044 * be advanced. 1045 */ 1046 inthand_t bluetrap6; 1047 #ifdef __GNUCLIKE_ASM 1048 __asm 1049 (" \n\ 1050 .text \n\ 1051 .p2align 2,0x90 \n\ 1052 .type " __XSTRING(CNAME(bluetrap6)) ",@function \n\ 1053 " __XSTRING(CNAME(bluetrap6)) ": \n\ 1054 ss \n\ 1055 movl $0xa8c1d," __XSTRING(CNAME(trap_by_rdmsr)) " \n\ 1056 addl $2, (%esp) /* rdmsr is a 2-byte instruction */ \n\ 1057 iret \n\ 1058 "); 1059 #endif 1060 1061 /* 1062 * Special exception 13 handler. 1063 * Accessing non-existent MSR generates general protection fault. 1064 */ 1065 inthand_t bluetrap13; 1066 #ifdef __GNUCLIKE_ASM 1067 __asm 1068 (" \n\ 1069 .text \n\ 1070 .p2align 2,0x90 \n\ 1071 .type " __XSTRING(CNAME(bluetrap13)) ",@function \n\ 1072 " __XSTRING(CNAME(bluetrap13)) ": \n\ 1073 ss \n\ 1074 movl $0xa89c4," __XSTRING(CNAME(trap_by_rdmsr)) " \n\ 1075 popl %eax /* discard error code */ \n\ 1076 addl $2, (%esp) /* rdmsr is a 2-byte instruction */ \n\ 1077 iret \n\ 1078 "); 1079 #endif 1080 1081 /* 1082 * Distinguish IBM Blue Lightning CPU from Cyrix CPUs that does not 1083 * support cpuid instruction. This function should be called after 1084 * loading interrupt descriptor table register. 1085 * 1086 * I don't like this method that handles fault, but I couldn't get 1087 * information for any other methods. Does blue giant know? 1088 */ 1089 static int 1090 identblue(void) 1091 { 1092 1093 trap_by_rdmsr = 0; 1094 1095 /* 1096 * Cyrix 486-class CPU does not support rdmsr instruction. 1097 * The rdmsr instruction generates invalid opcode fault, and exception 1098 * will be trapped by bluetrap6() on Cyrix 486-class CPU. The 1099 * bluetrap6() set the magic number to trap_by_rdmsr. 1100 */ 1101 setidt(IDT_UD, bluetrap6, SDT_SYS386TGT, SEL_KPL, 1102 GSEL(GCODE_SEL, SEL_KPL)); 1103 1104 /* 1105 * Certain BIOS disables cpuid instruction of Cyrix 6x86MX CPU. 1106 * In this case, rdmsr generates general protection fault, and 1107 * exception will be trapped by bluetrap13(). 1108 */ 1109 setidt(IDT_GP, bluetrap13, SDT_SYS386TGT, SEL_KPL, 1110 GSEL(GCODE_SEL, SEL_KPL)); 1111 1112 rdmsr(0x1002); /* Cyrix CPU generates fault. */ 1113 1114 if (trap_by_rdmsr == 0xa8c1d) 1115 return IDENTBLUE_CYRIX486; 1116 else if (trap_by_rdmsr == 0xa89c4) 1117 return IDENTBLUE_CYRIXM2; 1118 return IDENTBLUE_IBMCPU; 1119 } 1120 1121 1122 /* 1123 * identifycyrix() set lower 16 bits of cyrix_did as follows: 1124 * 1125 * F E D C B A 9 8 7 6 5 4 3 2 1 0 1126 * +-------+-------+---------------+ 1127 * | SID | RID | Device ID | 1128 * | (DIR 1) | (DIR 0) | 1129 * +-------+-------+---------------+ 1130 */ 1131 static void 1132 identifycyrix(void) 1133 { 1134 register_t saveintr; 1135 int ccr2_test = 0, dir_test = 0; 1136 u_char ccr2, ccr3; 1137 1138 saveintr = intr_disable(); 1139 1140 ccr2 = read_cyrix_reg(CCR2); 1141 write_cyrix_reg(CCR2, ccr2 ^ CCR2_LOCK_NW); 1142 read_cyrix_reg(CCR2); 1143 if (read_cyrix_reg(CCR2) != ccr2) 1144 ccr2_test = 1; 1145 write_cyrix_reg(CCR2, ccr2); 1146 1147 ccr3 = read_cyrix_reg(CCR3); 1148 write_cyrix_reg(CCR3, ccr3 ^ CCR3_MAPEN3); 1149 read_cyrix_reg(CCR3); 1150 if (read_cyrix_reg(CCR3) != ccr3) 1151 dir_test = 1; /* CPU supports DIRs. */ 1152 write_cyrix_reg(CCR3, ccr3); 1153 1154 if (dir_test) { 1155 /* Device ID registers are available. */ 1156 cyrix_did = read_cyrix_reg(DIR1) << 8; 1157 cyrix_did += read_cyrix_reg(DIR0); 1158 } else if (ccr2_test) 1159 cyrix_did = 0x0010; /* 486S A-step */ 1160 else 1161 cyrix_did = 0x00ff; /* Old 486SLC/DLC and TI486SXLC/SXL */ 1162 1163 intr_restore(saveintr); 1164 } 1165 #endif 1166 1167 /* Update TSC freq with the value indicated by the caller. */ 1168 static void 1169 tsc_freq_changed(void *arg __unused, const struct cf_level *level, int status) 1170 { 1171 1172 /* If there was an error during the transition, don't do anything. */ 1173 if (status != 0) 1174 return; 1175 1176 /* Total setting for this level gives the new frequency in MHz. */ 1177 hw_clockrate = level->total_set.freq; 1178 } 1179 1180 static void 1181 hook_tsc_freq(void *arg __unused) 1182 { 1183 1184 if (tsc_is_invariant) 1185 return; 1186 1187 tsc_post_tag = EVENTHANDLER_REGISTER(cpufreq_post_change, 1188 tsc_freq_changed, NULL, EVENTHANDLER_PRI_ANY); 1189 } 1190 1191 SYSINIT(hook_tsc_freq, SI_SUB_CONFIGURE, SI_ORDER_ANY, hook_tsc_freq, NULL); 1192 1193 #ifndef XEN 1194 static const char *const vm_bnames[] = { 1195 "QEMU", /* QEMU */ 1196 "Plex86", /* Plex86 */ 1197 "Bochs", /* Bochs */ 1198 "Xen", /* Xen */ 1199 "BHYVE", /* bhyve */ 1200 "Seabios", /* KVM */ 1201 NULL 1202 }; 1203 1204 static const char *const vm_pnames[] = { 1205 "VMware Virtual Platform", /* VMWare VM */ 1206 "Virtual Machine", /* Microsoft VirtualPC */ 1207 "VirtualBox", /* Sun xVM VirtualBox */ 1208 "Parallels Virtual Platform", /* Parallels VM */ 1209 "KVM", /* KVM */ 1210 NULL 1211 }; 1212 1213 static void 1214 identify_hypervisor(void) 1215 { 1216 u_int regs[4]; 1217 char *p; 1218 int i; 1219 1220 /* 1221 * [RFC] CPUID usage for interaction between Hypervisors and Linux. 1222 * http://lkml.org/lkml/2008/10/1/246 1223 * 1224 * KB1009458: Mechanisms to determine if software is running in 1225 * a VMware virtual machine 1226 * http://kb.vmware.com/kb/1009458 1227 */ 1228 if (cpu_feature2 & CPUID2_HV) { 1229 vm_guest = VM_GUEST_VM; 1230 do_cpuid(0x40000000, regs); 1231 if (regs[0] >= 0x40000000) { 1232 hv_high = regs[0]; 1233 ((u_int *)&hv_vendor)[0] = regs[1]; 1234 ((u_int *)&hv_vendor)[1] = regs[2]; 1235 ((u_int *)&hv_vendor)[2] = regs[3]; 1236 hv_vendor[12] = '\0'; 1237 if (strcmp(hv_vendor, "VMwareVMware") == 0) 1238 vm_guest = VM_GUEST_VMWARE; 1239 } 1240 return; 1241 } 1242 1243 /* 1244 * Examine SMBIOS strings for older hypervisors. 1245 */ 1246 p = kern_getenv("smbios.system.serial"); 1247 if (p != NULL) { 1248 if (strncmp(p, "VMware-", 7) == 0 || strncmp(p, "VMW", 3) == 0) { 1249 vmware_hvcall(VMW_HVCMD_GETVERSION, regs); 1250 if (regs[1] == VMW_HVMAGIC) { 1251 vm_guest = VM_GUEST_VMWARE; 1252 freeenv(p); 1253 return; 1254 } 1255 } 1256 freeenv(p); 1257 } 1258 1259 /* 1260 * XXX: Some of these entries may not be needed since they were 1261 * added to FreeBSD before the checks above. 1262 */ 1263 p = kern_getenv("smbios.bios.vendor"); 1264 if (p != NULL) { 1265 for (i = 0; vm_bnames[i] != NULL; i++) 1266 if (strcmp(p, vm_bnames[i]) == 0) { 1267 vm_guest = VM_GUEST_VM; 1268 freeenv(p); 1269 return; 1270 } 1271 freeenv(p); 1272 } 1273 p = kern_getenv("smbios.system.product"); 1274 if (p != NULL) { 1275 for (i = 0; vm_pnames[i] != NULL; i++) 1276 if (strcmp(p, vm_pnames[i]) == 0) { 1277 vm_guest = VM_GUEST_VM; 1278 freeenv(p); 1279 return; 1280 } 1281 freeenv(p); 1282 } 1283 } 1284 #endif 1285 1286 /* 1287 * Final stage of CPU identification. 1288 */ 1289 #ifdef __i386__ 1290 void 1291 finishidentcpu(void) 1292 #else 1293 void 1294 identify_cpu(void) 1295 #endif 1296 { 1297 u_int regs[4], cpu_stdext_disable; 1298 #ifdef __i386__ 1299 u_char ccr3; 1300 #endif 1301 1302 #ifdef __amd64__ 1303 do_cpuid(0, regs); 1304 cpu_high = regs[0]; 1305 ((u_int *)&cpu_vendor)[0] = regs[1]; 1306 ((u_int *)&cpu_vendor)[1] = regs[3]; 1307 ((u_int *)&cpu_vendor)[2] = regs[2]; 1308 cpu_vendor[12] = '\0'; 1309 1310 do_cpuid(1, regs); 1311 cpu_id = regs[0]; 1312 cpu_procinfo = regs[1]; 1313 cpu_feature = regs[3]; 1314 cpu_feature2 = regs[2]; 1315 #endif 1316 1317 #ifndef XEN 1318 identify_hypervisor(); 1319 #endif 1320 cpu_vendor_id = find_cpu_vendor_id(); 1321 1322 /* 1323 * Clear "Limit CPUID Maxval" bit and get the largest standard CPUID 1324 * function number again if it is set from BIOS. It is necessary 1325 * for probing correct CPU topology later. 1326 * XXX This is only done on the BSP package. 1327 */ 1328 if (cpu_vendor_id == CPU_VENDOR_INTEL && cpu_high > 0 && cpu_high < 4 && 1329 ((CPUID_TO_FAMILY(cpu_id) == 0xf && CPUID_TO_MODEL(cpu_id) >= 0x3) || 1330 (CPUID_TO_FAMILY(cpu_id) == 0x6 && CPUID_TO_MODEL(cpu_id) >= 0xe))) { 1331 uint64_t msr; 1332 msr = rdmsr(MSR_IA32_MISC_ENABLE); 1333 if ((msr & 0x400000ULL) != 0) { 1334 wrmsr(MSR_IA32_MISC_ENABLE, msr & ~0x400000ULL); 1335 do_cpuid(0, regs); 1336 cpu_high = regs[0]; 1337 } 1338 } 1339 1340 if (cpu_high >= 5 && (cpu_feature2 & CPUID2_MON) != 0) { 1341 do_cpuid(5, regs); 1342 cpu_mon_mwait_flags = regs[2]; 1343 cpu_mon_min_size = regs[0] & CPUID5_MON_MIN_SIZE; 1344 cpu_mon_max_size = regs[1] & CPUID5_MON_MAX_SIZE; 1345 } 1346 1347 if (cpu_high >= 7) { 1348 cpuid_count(7, 0, regs); 1349 cpu_stdext_feature = regs[1]; 1350 1351 /* 1352 * Some hypervisors fail to filter out unsupported 1353 * extended features. For now, disable the 1354 * extensions, activation of which requires setting a 1355 * bit in CR4, and which VM monitors do not support. 1356 */ 1357 if (cpu_feature2 & CPUID2_HV) { 1358 cpu_stdext_disable = CPUID_STDEXT_FSGSBASE | 1359 CPUID_STDEXT_SMEP; 1360 } else 1361 cpu_stdext_disable = 0; 1362 TUNABLE_INT_FETCH("hw.cpu_stdext_disable", &cpu_stdext_disable); 1363 cpu_stdext_feature &= ~cpu_stdext_disable; 1364 } 1365 1366 #ifdef __i386__ 1367 if (cpu_high > 0 && 1368 (cpu_vendor_id == CPU_VENDOR_INTEL || 1369 cpu_vendor_id == CPU_VENDOR_AMD || 1370 cpu_vendor_id == CPU_VENDOR_TRANSMETA || 1371 cpu_vendor_id == CPU_VENDOR_CENTAUR || 1372 cpu_vendor_id == CPU_VENDOR_NSC)) { 1373 do_cpuid(0x80000000, regs); 1374 if (regs[0] >= 0x80000000) 1375 cpu_exthigh = regs[0]; 1376 } 1377 #else 1378 if (cpu_vendor_id == CPU_VENDOR_INTEL || 1379 cpu_vendor_id == CPU_VENDOR_AMD || 1380 cpu_vendor_id == CPU_VENDOR_CENTAUR) { 1381 do_cpuid(0x80000000, regs); 1382 cpu_exthigh = regs[0]; 1383 } 1384 #endif 1385 if (cpu_exthigh >= 0x80000001) { 1386 do_cpuid(0x80000001, regs); 1387 amd_feature = regs[3] & ~(cpu_feature & 0x0183f3ff); 1388 amd_feature2 = regs[2]; 1389 } 1390 if (cpu_exthigh >= 0x80000007) { 1391 do_cpuid(0x80000007, regs); 1392 amd_pminfo = regs[3]; 1393 } 1394 if (cpu_exthigh >= 0x80000008) { 1395 do_cpuid(0x80000008, regs); 1396 cpu_maxphyaddr = regs[0] & 0xff; 1397 cpu_procinfo2 = regs[2]; 1398 } else { 1399 cpu_maxphyaddr = (cpu_feature & CPUID_PAE) != 0 ? 36 : 32; 1400 } 1401 1402 #ifdef __i386__ 1403 if (cpu_vendor_id == CPU_VENDOR_CYRIX) { 1404 if (cpu == CPU_486) { 1405 /* 1406 * These conditions are equivalent to: 1407 * - CPU does not support cpuid instruction. 1408 * - Cyrix/IBM CPU is detected. 1409 */ 1410 if (identblue() == IDENTBLUE_IBMCPU) { 1411 strcpy(cpu_vendor, "IBM"); 1412 cpu_vendor_id = CPU_VENDOR_IBM; 1413 cpu = CPU_BLUE; 1414 return; 1415 } 1416 } 1417 switch (cpu_id & 0xf00) { 1418 case 0x600: 1419 /* 1420 * Cyrix's datasheet does not describe DIRs. 1421 * Therefor, I assume it does not have them 1422 * and use the result of the cpuid instruction. 1423 * XXX they seem to have it for now at least. -Peter 1424 */ 1425 identifycyrix(); 1426 cpu = CPU_M2; 1427 break; 1428 default: 1429 identifycyrix(); 1430 /* 1431 * This routine contains a trick. 1432 * Don't check (cpu_id & 0x00f0) == 0x50 to detect M2, now. 1433 */ 1434 switch (cyrix_did & 0x00f0) { 1435 case 0x00: 1436 case 0xf0: 1437 cpu = CPU_486DLC; 1438 break; 1439 case 0x10: 1440 cpu = CPU_CY486DX; 1441 break; 1442 case 0x20: 1443 if ((cyrix_did & 0x000f) < 8) 1444 cpu = CPU_M1; 1445 else 1446 cpu = CPU_M1SC; 1447 break; 1448 case 0x30: 1449 cpu = CPU_M1; 1450 break; 1451 case 0x40: 1452 /* MediaGX CPU */ 1453 cpu = CPU_M1SC; 1454 break; 1455 default: 1456 /* M2 and later CPUs are treated as M2. */ 1457 cpu = CPU_M2; 1458 1459 /* 1460 * enable cpuid instruction. 1461 */ 1462 ccr3 = read_cyrix_reg(CCR3); 1463 write_cyrix_reg(CCR3, CCR3_MAPEN0); 1464 write_cyrix_reg(CCR4, read_cyrix_reg(CCR4) | CCR4_CPUID); 1465 write_cyrix_reg(CCR3, ccr3); 1466 1467 do_cpuid(0, regs); 1468 cpu_high = regs[0]; /* eax */ 1469 do_cpuid(1, regs); 1470 cpu_id = regs[0]; /* eax */ 1471 cpu_feature = regs[3]; /* edx */ 1472 break; 1473 } 1474 } 1475 } else if (cpu == CPU_486 && *cpu_vendor == '\0') { 1476 /* 1477 * There are BlueLightning CPUs that do not change 1478 * undefined flags by dividing 5 by 2. In this case, 1479 * the CPU identification routine in locore.s leaves 1480 * cpu_vendor null string and puts CPU_486 into the 1481 * cpu. 1482 */ 1483 if (identblue() == IDENTBLUE_IBMCPU) { 1484 strcpy(cpu_vendor, "IBM"); 1485 cpu_vendor_id = CPU_VENDOR_IBM; 1486 cpu = CPU_BLUE; 1487 return; 1488 } 1489 } 1490 #else 1491 /* XXX */ 1492 cpu = CPU_CLAWHAMMER; 1493 #endif 1494 } 1495 1496 static u_int 1497 find_cpu_vendor_id(void) 1498 { 1499 int i; 1500 1501 for (i = 0; i < sizeof(cpu_vendors) / sizeof(cpu_vendors[0]); i++) 1502 if (strcmp(cpu_vendor, cpu_vendors[i].vendor) == 0) 1503 return (cpu_vendors[i].vendor_id); 1504 return (0); 1505 } 1506 1507 static void 1508 print_AMD_assoc(int i) 1509 { 1510 if (i == 255) 1511 printf(", fully associative\n"); 1512 else 1513 printf(", %d-way associative\n", i); 1514 } 1515 1516 static void 1517 print_AMD_l2_assoc(int i) 1518 { 1519 switch (i & 0x0f) { 1520 case 0: printf(", disabled/not present\n"); break; 1521 case 1: printf(", direct mapped\n"); break; 1522 case 2: printf(", 2-way associative\n"); break; 1523 case 4: printf(", 4-way associative\n"); break; 1524 case 6: printf(", 8-way associative\n"); break; 1525 case 8: printf(", 16-way associative\n"); break; 1526 case 15: printf(", fully associative\n"); break; 1527 default: printf(", reserved configuration\n"); break; 1528 } 1529 } 1530 1531 static void 1532 print_AMD_info(void) 1533 { 1534 #ifdef __i386__ 1535 uint64_t amd_whcr; 1536 #endif 1537 u_int regs[4]; 1538 1539 if (cpu_exthigh >= 0x80000005) { 1540 do_cpuid(0x80000005, regs); 1541 printf("L1 2MB data TLB: %d entries", (regs[0] >> 16) & 0xff); 1542 print_AMD_assoc(regs[0] >> 24); 1543 1544 printf("L1 2MB instruction TLB: %d entries", regs[0] & 0xff); 1545 print_AMD_assoc((regs[0] >> 8) & 0xff); 1546 1547 printf("L1 4KB data TLB: %d entries", (regs[1] >> 16) & 0xff); 1548 print_AMD_assoc(regs[1] >> 24); 1549 1550 printf("L1 4KB instruction TLB: %d entries", regs[1] & 0xff); 1551 print_AMD_assoc((regs[1] >> 8) & 0xff); 1552 1553 printf("L1 data cache: %d kbytes", regs[2] >> 24); 1554 printf(", %d bytes/line", regs[2] & 0xff); 1555 printf(", %d lines/tag", (regs[2] >> 8) & 0xff); 1556 print_AMD_assoc((regs[2] >> 16) & 0xff); 1557 1558 printf("L1 instruction cache: %d kbytes", regs[3] >> 24); 1559 printf(", %d bytes/line", regs[3] & 0xff); 1560 printf(", %d lines/tag", (regs[3] >> 8) & 0xff); 1561 print_AMD_assoc((regs[3] >> 16) & 0xff); 1562 } 1563 1564 if (cpu_exthigh >= 0x80000006) { 1565 do_cpuid(0x80000006, regs); 1566 if ((regs[0] >> 16) != 0) { 1567 printf("L2 2MB data TLB: %d entries", 1568 (regs[0] >> 16) & 0xfff); 1569 print_AMD_l2_assoc(regs[0] >> 28); 1570 printf("L2 2MB instruction TLB: %d entries", 1571 regs[0] & 0xfff); 1572 print_AMD_l2_assoc((regs[0] >> 28) & 0xf); 1573 } else { 1574 printf("L2 2MB unified TLB: %d entries", 1575 regs[0] & 0xfff); 1576 print_AMD_l2_assoc((regs[0] >> 28) & 0xf); 1577 } 1578 if ((regs[1] >> 16) != 0) { 1579 printf("L2 4KB data TLB: %d entries", 1580 (regs[1] >> 16) & 0xfff); 1581 print_AMD_l2_assoc(regs[1] >> 28); 1582 1583 printf("L2 4KB instruction TLB: %d entries", 1584 (regs[1] >> 16) & 0xfff); 1585 print_AMD_l2_assoc((regs[1] >> 28) & 0xf); 1586 } else { 1587 printf("L2 4KB unified TLB: %d entries", 1588 (regs[1] >> 16) & 0xfff); 1589 print_AMD_l2_assoc((regs[1] >> 28) & 0xf); 1590 } 1591 printf("L2 unified cache: %d kbytes", regs[2] >> 16); 1592 printf(", %d bytes/line", regs[2] & 0xff); 1593 printf(", %d lines/tag", (regs[2] >> 8) & 0x0f); 1594 print_AMD_l2_assoc((regs[2] >> 12) & 0x0f); 1595 } 1596 1597 #ifdef __i386__ 1598 if (((cpu_id & 0xf00) == 0x500) 1599 && (((cpu_id & 0x0f0) > 0x80) 1600 || (((cpu_id & 0x0f0) == 0x80) 1601 && (cpu_id & 0x00f) > 0x07))) { 1602 /* K6-2(new core [Stepping 8-F]), K6-III or later */ 1603 amd_whcr = rdmsr(0xc0000082); 1604 if (!(amd_whcr & (0x3ff << 22))) { 1605 printf("Write Allocate Disable\n"); 1606 } else { 1607 printf("Write Allocate Enable Limit: %dM bytes\n", 1608 (u_int32_t)((amd_whcr & (0x3ff << 22)) >> 22) * 4); 1609 printf("Write Allocate 15-16M bytes: %s\n", 1610 (amd_whcr & (1 << 16)) ? "Enable" : "Disable"); 1611 } 1612 } else if (((cpu_id & 0xf00) == 0x500) 1613 && ((cpu_id & 0x0f0) > 0x50)) { 1614 /* K6, K6-2(old core) */ 1615 amd_whcr = rdmsr(0xc0000082); 1616 if (!(amd_whcr & (0x7f << 1))) { 1617 printf("Write Allocate Disable\n"); 1618 } else { 1619 printf("Write Allocate Enable Limit: %dM bytes\n", 1620 (u_int32_t)((amd_whcr & (0x7f << 1)) >> 1) * 4); 1621 printf("Write Allocate 15-16M bytes: %s\n", 1622 (amd_whcr & 0x0001) ? "Enable" : "Disable"); 1623 printf("Hardware Write Allocate Control: %s\n", 1624 (amd_whcr & 0x0100) ? "Enable" : "Disable"); 1625 } 1626 } 1627 #endif 1628 /* 1629 * Opteron Rev E shows a bug as in very rare occasions a read memory 1630 * barrier is not performed as expected if it is followed by a 1631 * non-atomic read-modify-write instruction. 1632 * As long as that bug pops up very rarely (intensive machine usage 1633 * on other operating systems generally generates one unexplainable 1634 * crash any 2 months) and as long as a model specific fix would be 1635 * impratical at this stage, print out a warning string if the broken 1636 * model and family are identified. 1637 */ 1638 if (CPUID_TO_FAMILY(cpu_id) == 0xf && CPUID_TO_MODEL(cpu_id) >= 0x20 && 1639 CPUID_TO_MODEL(cpu_id) <= 0x3f) 1640 printf("WARNING: This architecture revision has known SMP " 1641 "hardware bugs which may cause random instability\n"); 1642 } 1643 1644 static void 1645 print_INTEL_info(void) 1646 { 1647 u_int regs[4]; 1648 u_int rounds, regnum; 1649 u_int nwaycode, nway; 1650 1651 if (cpu_high >= 2) { 1652 rounds = 0; 1653 do { 1654 do_cpuid(0x2, regs); 1655 if (rounds == 0 && (rounds = (regs[0] & 0xff)) == 0) 1656 break; /* we have a buggy CPU */ 1657 1658 for (regnum = 0; regnum <= 3; ++regnum) { 1659 if (regs[regnum] & (1<<31)) 1660 continue; 1661 if (regnum != 0) 1662 print_INTEL_TLB(regs[regnum] & 0xff); 1663 print_INTEL_TLB((regs[regnum] >> 8) & 0xff); 1664 print_INTEL_TLB((regs[regnum] >> 16) & 0xff); 1665 print_INTEL_TLB((regs[regnum] >> 24) & 0xff); 1666 } 1667 } while (--rounds > 0); 1668 } 1669 1670 if (cpu_exthigh >= 0x80000006) { 1671 do_cpuid(0x80000006, regs); 1672 nwaycode = (regs[2] >> 12) & 0x0f; 1673 if (nwaycode >= 0x02 && nwaycode <= 0x08) 1674 nway = 1 << (nwaycode / 2); 1675 else 1676 nway = 0; 1677 printf("L2 cache: %u kbytes, %u-way associative, %u bytes/line\n", 1678 (regs[2] >> 16) & 0xffff, nway, regs[2] & 0xff); 1679 } 1680 } 1681 1682 static void 1683 print_INTEL_TLB(u_int data) 1684 { 1685 switch (data) { 1686 case 0x0: 1687 case 0x40: 1688 default: 1689 break; 1690 case 0x1: 1691 printf("Instruction TLB: 4 KB pages, 4-way set associative, 32 entries\n"); 1692 break; 1693 case 0x2: 1694 printf("Instruction TLB: 4 MB pages, fully associative, 2 entries\n"); 1695 break; 1696 case 0x3: 1697 printf("Data TLB: 4 KB pages, 4-way set associative, 64 entries\n"); 1698 break; 1699 case 0x4: 1700 printf("Data TLB: 4 MB Pages, 4-way set associative, 8 entries\n"); 1701 break; 1702 case 0x6: 1703 printf("1st-level instruction cache: 8 KB, 4-way set associative, 32 byte line size\n"); 1704 break; 1705 case 0x8: 1706 printf("1st-level instruction cache: 16 KB, 4-way set associative, 32 byte line size\n"); 1707 break; 1708 case 0xa: 1709 printf("1st-level data cache: 8 KB, 2-way set associative, 32 byte line size\n"); 1710 break; 1711 case 0xc: 1712 printf("1st-level data cache: 16 KB, 4-way set associative, 32 byte line size\n"); 1713 break; 1714 case 0x22: 1715 printf("3rd-level cache: 512 KB, 4-way set associative, sectored cache, 64 byte line size\n"); 1716 break; 1717 case 0x23: 1718 printf("3rd-level cache: 1 MB, 8-way set associative, sectored cache, 64 byte line size\n"); 1719 break; 1720 case 0x25: 1721 printf("3rd-level cache: 2 MB, 8-way set associative, sectored cache, 64 byte line size\n"); 1722 break; 1723 case 0x29: 1724 printf("3rd-level cache: 4 MB, 8-way set associative, sectored cache, 64 byte line size\n"); 1725 break; 1726 case 0x2c: 1727 printf("1st-level data cache: 32 KB, 8-way set associative, 64 byte line size\n"); 1728 break; 1729 case 0x30: 1730 printf("1st-level instruction cache: 32 KB, 8-way set associative, 64 byte line size\n"); 1731 break; 1732 case 0x39: 1733 printf("2nd-level cache: 128 KB, 4-way set associative, sectored cache, 64 byte line size\n"); 1734 break; 1735 case 0x3b: 1736 printf("2nd-level cache: 128 KB, 2-way set associative, sectored cache, 64 byte line size\n"); 1737 break; 1738 case 0x3c: 1739 printf("2nd-level cache: 256 KB, 4-way set associative, sectored cache, 64 byte line size\n"); 1740 break; 1741 case 0x41: 1742 printf("2nd-level cache: 128 KB, 4-way set associative, 32 byte line size\n"); 1743 break; 1744 case 0x42: 1745 printf("2nd-level cache: 256 KB, 4-way set associative, 32 byte line size\n"); 1746 break; 1747 case 0x43: 1748 printf("2nd-level cache: 512 KB, 4-way set associative, 32 byte line size\n"); 1749 break; 1750 case 0x44: 1751 printf("2nd-level cache: 1 MB, 4-way set associative, 32 byte line size\n"); 1752 break; 1753 case 0x45: 1754 printf("2nd-level cache: 2 MB, 4-way set associative, 32 byte line size\n"); 1755 break; 1756 case 0x46: 1757 printf("3rd-level cache: 4 MB, 4-way set associative, 64 byte line size\n"); 1758 break; 1759 case 0x47: 1760 printf("3rd-level cache: 8 MB, 8-way set associative, 64 byte line size\n"); 1761 break; 1762 case 0x50: 1763 printf("Instruction TLB: 4 KB, 2 MB or 4 MB pages, fully associative, 64 entries\n"); 1764 break; 1765 case 0x51: 1766 printf("Instruction TLB: 4 KB, 2 MB or 4 MB pages, fully associative, 128 entries\n"); 1767 break; 1768 case 0x52: 1769 printf("Instruction TLB: 4 KB, 2 MB or 4 MB pages, fully associative, 256 entries\n"); 1770 break; 1771 case 0x5b: 1772 printf("Data TLB: 4 KB or 4 MB pages, fully associative, 64 entries\n"); 1773 break; 1774 case 0x5c: 1775 printf("Data TLB: 4 KB or 4 MB pages, fully associative, 128 entries\n"); 1776 break; 1777 case 0x5d: 1778 printf("Data TLB: 4 KB or 4 MB pages, fully associative, 256 entries\n"); 1779 break; 1780 case 0x60: 1781 printf("1st-level data cache: 16 KB, 8-way set associative, sectored cache, 64 byte line size\n"); 1782 break; 1783 case 0x66: 1784 printf("1st-level data cache: 8 KB, 4-way set associative, sectored cache, 64 byte line size\n"); 1785 break; 1786 case 0x67: 1787 printf("1st-level data cache: 16 KB, 4-way set associative, sectored cache, 64 byte line size\n"); 1788 break; 1789 case 0x68: 1790 printf("1st-level data cache: 32 KB, 4 way set associative, sectored cache, 64 byte line size\n"); 1791 break; 1792 case 0x70: 1793 printf("Trace cache: 12K-uops, 8-way set associative\n"); 1794 break; 1795 case 0x71: 1796 printf("Trace cache: 16K-uops, 8-way set associative\n"); 1797 break; 1798 case 0x72: 1799 printf("Trace cache: 32K-uops, 8-way set associative\n"); 1800 break; 1801 case 0x78: 1802 printf("2nd-level cache: 1 MB, 4-way set associative, 64-byte line size\n"); 1803 break; 1804 case 0x79: 1805 printf("2nd-level cache: 128 KB, 8-way set associative, sectored cache, 64 byte line size\n"); 1806 break; 1807 case 0x7a: 1808 printf("2nd-level cache: 256 KB, 8-way set associative, sectored cache, 64 byte line size\n"); 1809 break; 1810 case 0x7b: 1811 printf("2nd-level cache: 512 KB, 8-way set associative, sectored cache, 64 byte line size\n"); 1812 break; 1813 case 0x7c: 1814 printf("2nd-level cache: 1 MB, 8-way set associative, sectored cache, 64 byte line size\n"); 1815 break; 1816 case 0x7d: 1817 printf("2nd-level cache: 2-MB, 8-way set associative, 64-byte line size\n"); 1818 break; 1819 case 0x7f: 1820 printf("2nd-level cache: 512-KB, 2-way set associative, 64-byte line size\n"); 1821 break; 1822 case 0x82: 1823 printf("2nd-level cache: 256 KB, 8-way set associative, 32 byte line size\n"); 1824 break; 1825 case 0x83: 1826 printf("2nd-level cache: 512 KB, 8-way set associative, 32 byte line size\n"); 1827 break; 1828 case 0x84: 1829 printf("2nd-level cache: 1 MB, 8-way set associative, 32 byte line size\n"); 1830 break; 1831 case 0x85: 1832 printf("2nd-level cache: 2 MB, 8-way set associative, 32 byte line size\n"); 1833 break; 1834 case 0x86: 1835 printf("2nd-level cache: 512 KB, 4-way set associative, 64 byte line size\n"); 1836 break; 1837 case 0x87: 1838 printf("2nd-level cache: 1 MB, 8-way set associative, 64 byte line size\n"); 1839 break; 1840 case 0xb0: 1841 printf("Instruction TLB: 4 KB Pages, 4-way set associative, 128 entries\n"); 1842 break; 1843 case 0xb3: 1844 printf("Data TLB: 4 KB Pages, 4-way set associative, 128 entries\n"); 1845 break; 1846 } 1847 } 1848 1849 static void 1850 print_svm_info(void) 1851 { 1852 u_int features, regs[4]; 1853 uint64_t msr; 1854 int comma; 1855 1856 printf("\n SVM: "); 1857 do_cpuid(0x8000000A, regs); 1858 features = regs[3]; 1859 1860 msr = rdmsr(MSR_VM_CR); 1861 if ((msr & VM_CR_SVMDIS) == VM_CR_SVMDIS) 1862 printf("(disabled in BIOS) "); 1863 1864 if (!bootverbose) { 1865 comma = 0; 1866 if (features & (1 << 0)) { 1867 printf("%sNP", comma ? "," : ""); 1868 comma = 1; 1869 } 1870 if (features & (1 << 3)) { 1871 printf("%sNRIP", comma ? "," : ""); 1872 comma = 1; 1873 } 1874 if (features & (1 << 5)) { 1875 printf("%sVClean", comma ? "," : ""); 1876 comma = 1; 1877 } 1878 if (features & (1 << 6)) { 1879 printf("%sAFlush", comma ? "," : ""); 1880 comma = 1; 1881 } 1882 if (features & (1 << 7)) { 1883 printf("%sDAssist", comma ? "," : ""); 1884 comma = 1; 1885 } 1886 printf("%sNAsids=%d", comma ? "," : "", regs[1]); 1887 return; 1888 } 1889 1890 printf("Features=0x%b", features, 1891 "\020" 1892 "\001NP" /* Nested paging */ 1893 "\002LbrVirt" /* LBR virtualization */ 1894 "\003SVML" /* SVM lock */ 1895 "\004NRIPS" /* NRIP save */ 1896 "\005TscRateMsr" /* MSR based TSC rate control */ 1897 "\006VmcbClean" /* VMCB clean bits */ 1898 "\007FlushByAsid" /* Flush by ASID */ 1899 "\010DecodeAssist" /* Decode assist */ 1900 "\011<b8>" 1901 "\012<b9>" 1902 "\013PauseFilter" /* PAUSE intercept filter */ 1903 "\014<b11>" 1904 "\015PauseFilterThreshold" /* PAUSE filter threshold */ 1905 "\016AVIC" /* virtual interrupt controller */ 1906 ); 1907 printf("\nRevision=%d, ASIDs=%d", regs[0] & 0xff, regs[1]); 1908 } 1909 1910 #ifdef __i386__ 1911 static void 1912 print_transmeta_info(void) 1913 { 1914 u_int regs[4], nreg = 0; 1915 1916 do_cpuid(0x80860000, regs); 1917 nreg = regs[0]; 1918 if (nreg >= 0x80860001) { 1919 do_cpuid(0x80860001, regs); 1920 printf(" Processor revision %u.%u.%u.%u\n", 1921 (regs[1] >> 24) & 0xff, 1922 (regs[1] >> 16) & 0xff, 1923 (regs[1] >> 8) & 0xff, 1924 regs[1] & 0xff); 1925 } 1926 if (nreg >= 0x80860002) { 1927 do_cpuid(0x80860002, regs); 1928 printf(" Code Morphing Software revision %u.%u.%u-%u-%u\n", 1929 (regs[1] >> 24) & 0xff, 1930 (regs[1] >> 16) & 0xff, 1931 (regs[1] >> 8) & 0xff, 1932 regs[1] & 0xff, 1933 regs[2]); 1934 } 1935 if (nreg >= 0x80860006) { 1936 char info[65]; 1937 do_cpuid(0x80860003, (u_int*) &info[0]); 1938 do_cpuid(0x80860004, (u_int*) &info[16]); 1939 do_cpuid(0x80860005, (u_int*) &info[32]); 1940 do_cpuid(0x80860006, (u_int*) &info[48]); 1941 info[64] = 0; 1942 printf(" %s\n", info); 1943 } 1944 } 1945 #endif 1946 1947 static void 1948 print_via_padlock_info(void) 1949 { 1950 u_int regs[4]; 1951 1952 do_cpuid(0xc0000001, regs); 1953 printf("\n VIA Padlock Features=0x%b", regs[3], 1954 "\020" 1955 "\003RNG" /* RNG */ 1956 "\007AES" /* ACE */ 1957 "\011AES-CTR" /* ACE2 */ 1958 "\013SHA1,SHA256" /* PHE */ 1959 "\015RSA" /* PMM */ 1960 ); 1961 } 1962 1963 static uint32_t 1964 vmx_settable(uint64_t basic, int msr, int true_msr) 1965 { 1966 uint64_t val; 1967 1968 if (basic & (1ULL << 55)) 1969 val = rdmsr(true_msr); 1970 else 1971 val = rdmsr(msr); 1972 1973 /* Just report the controls that can be set to 1. */ 1974 return (val >> 32); 1975 } 1976 1977 static void 1978 print_vmx_info(void) 1979 { 1980 uint64_t basic, msr; 1981 uint32_t entry, exit, mask, pin, proc, proc2; 1982 int comma; 1983 1984 printf("\n VT-x: "); 1985 msr = rdmsr(MSR_IA32_FEATURE_CONTROL); 1986 if (!(msr & IA32_FEATURE_CONTROL_VMX_EN)) 1987 printf("(disabled in BIOS) "); 1988 basic = rdmsr(MSR_VMX_BASIC); 1989 pin = vmx_settable(basic, MSR_VMX_PINBASED_CTLS, 1990 MSR_VMX_TRUE_PINBASED_CTLS); 1991 proc = vmx_settable(basic, MSR_VMX_PROCBASED_CTLS, 1992 MSR_VMX_TRUE_PROCBASED_CTLS); 1993 if (proc & PROCBASED_SECONDARY_CONTROLS) 1994 proc2 = vmx_settable(basic, MSR_VMX_PROCBASED_CTLS2, 1995 MSR_VMX_PROCBASED_CTLS2); 1996 else 1997 proc2 = 0; 1998 exit = vmx_settable(basic, MSR_VMX_EXIT_CTLS, MSR_VMX_TRUE_EXIT_CTLS); 1999 entry = vmx_settable(basic, MSR_VMX_ENTRY_CTLS, MSR_VMX_TRUE_ENTRY_CTLS); 2000 2001 if (!bootverbose) { 2002 comma = 0; 2003 if (exit & VM_EXIT_SAVE_PAT && exit & VM_EXIT_LOAD_PAT && 2004 entry & VM_ENTRY_LOAD_PAT) { 2005 printf("%sPAT", comma ? "," : ""); 2006 comma = 1; 2007 } 2008 if (proc & PROCBASED_HLT_EXITING) { 2009 printf("%sHLT", comma ? "," : ""); 2010 comma = 1; 2011 } 2012 if (proc & PROCBASED_MTF) { 2013 printf("%sMTF", comma ? "," : ""); 2014 comma = 1; 2015 } 2016 if (proc & PROCBASED_PAUSE_EXITING) { 2017 printf("%sPAUSE", comma ? "," : ""); 2018 comma = 1; 2019 } 2020 if (proc2 & PROCBASED2_ENABLE_EPT) { 2021 printf("%sEPT", comma ? "," : ""); 2022 comma = 1; 2023 } 2024 if (proc2 & PROCBASED2_UNRESTRICTED_GUEST) { 2025 printf("%sUG", comma ? "," : ""); 2026 comma = 1; 2027 } 2028 if (proc2 & PROCBASED2_ENABLE_VPID) { 2029 printf("%sVPID", comma ? "," : ""); 2030 comma = 1; 2031 } 2032 if (proc & PROCBASED_USE_TPR_SHADOW && 2033 proc2 & PROCBASED2_VIRTUALIZE_APIC_ACCESSES && 2034 proc2 & PROCBASED2_VIRTUALIZE_X2APIC_MODE && 2035 proc2 & PROCBASED2_APIC_REGISTER_VIRTUALIZATION && 2036 proc2 & PROCBASED2_VIRTUAL_INTERRUPT_DELIVERY) { 2037 printf("%sVID", comma ? "," : ""); 2038 comma = 1; 2039 if (pin & PINBASED_POSTED_INTERRUPT) 2040 printf(",PostIntr"); 2041 } 2042 return; 2043 } 2044 2045 mask = basic >> 32; 2046 printf("Basic Features=0x%b", mask, 2047 "\020" 2048 "\02132PA" /* 32-bit physical addresses */ 2049 "\022SMM" /* SMM dual-monitor */ 2050 "\027INS/OUTS" /* VM-exit info for INS and OUTS */ 2051 "\030TRUE" /* TRUE_CTLS MSRs */ 2052 ); 2053 printf("\n Pin-Based Controls=0x%b", pin, 2054 "\020" 2055 "\001ExtINT" /* External-interrupt exiting */ 2056 "\004NMI" /* NMI exiting */ 2057 "\006VNMI" /* Virtual NMIs */ 2058 "\007PreTmr" /* Activate VMX-preemption timer */ 2059 "\010PostIntr" /* Process posted interrupts */ 2060 ); 2061 printf("\n Primary Processor Controls=0x%b", proc, 2062 "\020" 2063 "\003INTWIN" /* Interrupt-window exiting */ 2064 "\004TSCOff" /* Use TSC offsetting */ 2065 "\010HLT" /* HLT exiting */ 2066 "\012INVLPG" /* INVLPG exiting */ 2067 "\013MWAIT" /* MWAIT exiting */ 2068 "\014RDPMC" /* RDPMC exiting */ 2069 "\015RDTSC" /* RDTSC exiting */ 2070 "\020CR3-LD" /* CR3-load exiting */ 2071 "\021CR3-ST" /* CR3-store exiting */ 2072 "\024CR8-LD" /* CR8-load exiting */ 2073 "\025CR8-ST" /* CR8-store exiting */ 2074 "\026TPR" /* Use TPR shadow */ 2075 "\027NMIWIN" /* NMI-window exiting */ 2076 "\030MOV-DR" /* MOV-DR exiting */ 2077 "\031IO" /* Unconditional I/O exiting */ 2078 "\032IOmap" /* Use I/O bitmaps */ 2079 "\034MTF" /* Monitor trap flag */ 2080 "\035MSRmap" /* Use MSR bitmaps */ 2081 "\036MONITOR" /* MONITOR exiting */ 2082 "\037PAUSE" /* PAUSE exiting */ 2083 ); 2084 if (proc & PROCBASED_SECONDARY_CONTROLS) 2085 printf("\n Secondary Processor Controls=0x%b", proc2, 2086 "\020" 2087 "\001APIC" /* Virtualize APIC accesses */ 2088 "\002EPT" /* Enable EPT */ 2089 "\003DT" /* Descriptor-table exiting */ 2090 "\004RDTSCP" /* Enable RDTSCP */ 2091 "\005x2APIC" /* Virtualize x2APIC mode */ 2092 "\006VPID" /* Enable VPID */ 2093 "\007WBINVD" /* WBINVD exiting */ 2094 "\010UG" /* Unrestricted guest */ 2095 "\011APIC-reg" /* APIC-register virtualization */ 2096 "\012VID" /* Virtual-interrupt delivery */ 2097 "\013PAUSE-loop" /* PAUSE-loop exiting */ 2098 "\014RDRAND" /* RDRAND exiting */ 2099 "\015INVPCID" /* Enable INVPCID */ 2100 "\016VMFUNC" /* Enable VM functions */ 2101 "\017VMCS" /* VMCS shadowing */ 2102 "\020EPT#VE" /* EPT-violation #VE */ 2103 "\021XSAVES" /* Enable XSAVES/XRSTORS */ 2104 ); 2105 printf("\n Exit Controls=0x%b", mask, 2106 "\020" 2107 "\003DR" /* Save debug controls */ 2108 /* Ignore Host address-space size */ 2109 "\015PERF" /* Load MSR_PERF_GLOBAL_CTRL */ 2110 "\020AckInt" /* Acknowledge interrupt on exit */ 2111 "\023PAT-SV" /* Save MSR_PAT */ 2112 "\024PAT-LD" /* Load MSR_PAT */ 2113 "\025EFER-SV" /* Save MSR_EFER */ 2114 "\026EFER-LD" /* Load MSR_EFER */ 2115 "\027PTMR-SV" /* Save VMX-preemption timer value */ 2116 ); 2117 printf("\n Entry Controls=0x%b", mask, 2118 "\020" 2119 "\003DR" /* Save debug controls */ 2120 /* Ignore IA-32e mode guest */ 2121 /* Ignore Entry to SMM */ 2122 /* Ignore Deactivate dual-monitor treatment */ 2123 "\016PERF" /* Load MSR_PERF_GLOBAL_CTRL */ 2124 "\017PAT" /* Load MSR_PAT */ 2125 "\020EFER" /* Load MSR_EFER */ 2126 ); 2127 if (proc & PROCBASED_SECONDARY_CONTROLS && 2128 (proc2 & (PROCBASED2_ENABLE_EPT | PROCBASED2_ENABLE_VPID)) != 0) { 2129 msr = rdmsr(MSR_VMX_EPT_VPID_CAP); 2130 mask = msr; 2131 printf("\n EPT Features=0x%b", mask, 2132 "\020" 2133 "\001XO" /* Execute-only translations */ 2134 "\007PW4" /* Page-walk length of 4 */ 2135 "\011UC" /* EPT paging-structure mem can be UC */ 2136 "\017WB" /* EPT paging-structure mem can be WB */ 2137 "\0212M" /* EPT PDE can map a 2-Mbyte page */ 2138 "\0221G" /* EPT PDPTE can map a 1-Gbyte page */ 2139 "\025INVEPT" /* INVEPT is supported */ 2140 "\026AD" /* Accessed and dirty flags for EPT */ 2141 "\032single" /* INVEPT single-context type */ 2142 "\033all" /* INVEPT all-context type */ 2143 ); 2144 mask = msr >> 32; 2145 printf("\n VPID Features=0x%b", mask, 2146 "\020" 2147 "\001INVVPID" /* INVVPID is supported */ 2148 "\011individual" /* INVVPID individual-address type */ 2149 "\012single" /* INVVPID single-context type */ 2150 "\013all" /* INVVPID all-context type */ 2151 /* INVVPID single-context-retaining-globals type */ 2152 "\014single-globals" 2153 ); 2154 } 2155 } 2156 2157 static void 2158 print_hypervisor_info(void) 2159 { 2160 2161 if (*hv_vendor) 2162 printf("Hypervisor: Origin = \"%s\"\n", hv_vendor); 2163 } 2164