Subrata Banik | 20fe24b | 2021-12-09 02:46:38 +0530 | [diff] [blame] | 1 | /** @file |
| 2 | CPUID leaf definitions. |
| 3 | |
| 4 | Provides defines for CPUID leaf indexes. Data structures are provided for |
| 5 | registers returned by a CPUID leaf that contain one or more bit fields. |
| 6 | If a register returned is a single 32-bit value, then a data structure is |
| 7 | not provided for that register. |
| 8 | |
| 9 | Copyright (c) 2017, Advanced Micro Devices. All rights reserved.<BR> |
| 10 | |
| 11 | SPDX-License-Identifier: BSD-2-Clause-Patent |
| 12 | |
| 13 | @par Specification Reference: |
| 14 | AMD64 Architecture Programming Manual volume 2, March 2017, Sections 15.34 |
| 15 | |
| 16 | **/ |
| 17 | |
| 18 | #ifndef __AMD_CPUID_H__ |
| 19 | #define __AMD_CPUID_H__ |
| 20 | |
| 21 | /** |
| 22 | CPUID Signature Information |
| 23 | |
| 24 | @param EAX CPUID_SIGNATURE (0x00) |
| 25 | |
| 26 | @retval EAX Returns the highest value the CPUID instruction recognizes for |
| 27 | returning basic processor information. The value is returned is |
| 28 | processor specific. |
| 29 | @retval EBX First 4 characters of a vendor identification string. |
| 30 | @retval ECX Last 4 characters of a vendor identification string. |
| 31 | @retval EDX Middle 4 characters of a vendor identification string. |
| 32 | |
| 33 | **/ |
| 34 | |
| 35 | /// |
| 36 | /// @{ CPUID signature values returned by AMD processors |
| 37 | /// |
| 38 | #define CPUID_SIGNATURE_AUTHENTIC_AMD_EBX SIGNATURE_32 ('A', 'u', 't', 'h') |
| 39 | #define CPUID_SIGNATURE_AUTHENTIC_AMD_EDX SIGNATURE_32 ('e', 'n', 't', 'i') |
| 40 | #define CPUID_SIGNATURE_AUTHENTIC_AMD_ECX SIGNATURE_32 ('c', 'A', 'M', 'D') |
| 41 | /// |
| 42 | /// @} |
| 43 | /// |
| 44 | |
| 45 | |
| 46 | /** |
| 47 | CPUID Extended Processor Signature and Features |
| 48 | |
| 49 | @param EAX CPUID_EXTENDED_CPU_SIG (0x80000001) |
| 50 | |
| 51 | @retval EAX Extended Family, Model, Stepping Identifiers |
| 52 | described by the type CPUID_AMD_EXTENDED_CPU_SIG_EAX. |
| 53 | @retval EBX Brand Identifier |
| 54 | described by the type CPUID_AMD_EXTENDED_CPU_SIG_EBX. |
| 55 | @retval ECX Extended Feature Identifiers |
| 56 | described by the type CPUID_AMD_EXTENDED_CPU_SIG_ECX. |
| 57 | @retval EDX Extended Feature Identifiers |
| 58 | described by the type CPUID_AMD_EXTENDED_CPU_SIG_EDX. |
| 59 | **/ |
| 60 | |
| 61 | /** |
| 62 | CPUID Extended Processor Signature and Features EAX for CPUID leaf |
| 63 | #CPUID_EXTENDED_CPU_SIG. |
| 64 | **/ |
| 65 | typedef union { |
| 66 | /// |
| 67 | /// Individual bit fields |
| 68 | /// |
| 69 | struct { |
| 70 | /// |
| 71 | /// [Bits 3:0] Stepping. |
| 72 | /// |
| 73 | UINT32 Stepping:4; |
| 74 | /// |
| 75 | /// [Bits 7:4] Base Model. |
| 76 | /// |
| 77 | UINT32 BaseModel:4; |
| 78 | /// |
| 79 | /// [Bits 11:8] Base Family. |
| 80 | /// |
| 81 | UINT32 BaseFamily:4; |
| 82 | /// |
| 83 | /// [Bit 15:12] Reserved. |
| 84 | /// |
| 85 | UINT32 Reserved1:4; |
| 86 | /// |
| 87 | /// [Bits 19:16] Extended Model. |
| 88 | /// |
| 89 | UINT32 ExtModel:4; |
| 90 | /// |
| 91 | /// [Bits 27:20] Extended Family. |
| 92 | /// |
| 93 | UINT32 ExtFamily:8; |
| 94 | /// |
| 95 | /// [Bit 31:28] Reserved. |
| 96 | /// |
| 97 | UINT32 Reserved2:4; |
| 98 | } Bits; |
| 99 | /// |
| 100 | /// All bit fields as a 32-bit value |
| 101 | /// |
| 102 | UINT32 Uint32; |
| 103 | } CPUID_AMD_EXTENDED_CPU_SIG_EAX; |
| 104 | |
| 105 | /** |
| 106 | CPUID Extended Processor Signature and Features EBX for CPUID leaf |
| 107 | #CPUID_EXTENDED_CPU_SIG. |
| 108 | **/ |
| 109 | typedef union { |
| 110 | /// |
| 111 | /// Individual bit fields |
| 112 | /// |
| 113 | struct { |
| 114 | /// |
| 115 | /// [Bits 27:0] Reserved. |
| 116 | /// |
| 117 | UINT32 Reserved:28; |
| 118 | /// |
| 119 | /// [Bit 31:28] Package Type. |
| 120 | /// |
| 121 | UINT32 PkgType:4; |
| 122 | } Bits; |
| 123 | /// |
| 124 | /// All bit fields as a 32-bit value |
| 125 | /// |
| 126 | UINT32 Uint32; |
| 127 | } CPUID_AMD_EXTENDED_CPU_SIG_EBX; |
| 128 | |
| 129 | /** |
| 130 | CPUID Extended Processor Signature and Features ECX for CPUID leaf |
| 131 | #CPUID_EXTENDED_CPU_SIG. |
| 132 | **/ |
| 133 | typedef union { |
| 134 | /// |
| 135 | /// Individual bit fields |
| 136 | /// |
| 137 | struct { |
| 138 | /// |
| 139 | /// [Bit 0] LAHF/SAHF available in 64-bit mode. |
| 140 | /// |
| 141 | UINT32 LAHF_SAHF:1; |
| 142 | /// |
| 143 | /// [Bit 1] Core multi-processing legacy mode. |
| 144 | /// |
| 145 | UINT32 CmpLegacy:1; |
| 146 | /// |
| 147 | /// [Bit 2] Secure Virtual Mode feature. |
| 148 | /// |
| 149 | UINT32 SVM:1; |
| 150 | /// |
| 151 | /// [Bit 3] Extended APIC register space. |
| 152 | /// |
| 153 | UINT32 ExtApicSpace:1; |
| 154 | /// |
| 155 | /// [Bit 4] LOCK MOV CR0 means MOV CR8. |
| 156 | /// |
| 157 | UINT32 AltMovCr8:1; |
| 158 | /// |
| 159 | /// [Bit 5] LZCNT instruction support. |
| 160 | /// |
| 161 | UINT32 LZCNT:1; |
| 162 | /// |
| 163 | /// [Bit 6] SSE4A instruction support. |
| 164 | /// |
| 165 | UINT32 SSE4A:1; |
| 166 | /// |
| 167 | /// [Bit 7] Misaligned SSE Mode. |
| 168 | /// |
| 169 | UINT32 MisAlignSse:1; |
| 170 | /// |
| 171 | /// [Bit 8] ThreeDNow Prefetch instructions. |
| 172 | /// |
| 173 | UINT32 PREFETCHW:1; |
| 174 | /// |
| 175 | /// [Bit 9] OS Visible Work-around support. |
| 176 | /// |
| 177 | UINT32 OSVW:1; |
| 178 | /// |
| 179 | /// [Bit 10] Instruction Based Sampling. |
| 180 | /// |
| 181 | UINT32 IBS:1; |
| 182 | /// |
| 183 | /// [Bit 11] Extended Operation Support. |
| 184 | /// |
| 185 | UINT32 XOP:1; |
| 186 | /// |
| 187 | /// [Bit 12] SKINIT and STGI support. |
| 188 | /// |
| 189 | UINT32 SKINIT:1; |
| 190 | /// |
| 191 | /// [Bit 13] Watchdog Timer support. |
| 192 | /// |
| 193 | UINT32 WDT:1; |
| 194 | /// |
| 195 | /// [Bit 14] Reserved. |
| 196 | /// |
| 197 | UINT32 Reserved1:1; |
| 198 | /// |
| 199 | /// [Bit 15] Lightweight Profiling support. |
| 200 | /// |
| 201 | UINT32 LWP:1; |
| 202 | /// |
| 203 | /// [Bit 16] 4-Operand FMA instruction support. |
| 204 | /// |
| 205 | UINT32 FMA4:1; |
| 206 | /// |
| 207 | /// [Bit 17] Translation Cache Extension. |
| 208 | /// |
| 209 | UINT32 TCE:1; |
| 210 | /// |
| 211 | /// [Bit 21:18] Reserved. |
| 212 | /// |
| 213 | UINT32 Reserved2:4; |
| 214 | /// |
| 215 | /// [Bit 22] Topology Extensions support. |
| 216 | /// |
| 217 | UINT32 TopologyExtensions:1; |
| 218 | /// |
| 219 | /// [Bit 23] Core Performance Counter Extensions. |
| 220 | /// |
| 221 | UINT32 PerfCtrExtCore:1; |
| 222 | /// |
| 223 | /// [Bit 25:24] Reserved. |
| 224 | /// |
| 225 | UINT32 Reserved3:2; |
| 226 | /// |
| 227 | /// [Bit 26] Data Breakpoint Extension. |
| 228 | /// |
| 229 | UINT32 DataBreakpointExtension:1; |
| 230 | /// |
| 231 | /// [Bit 27] Performance Time-Stamp Counter. |
| 232 | /// |
| 233 | UINT32 PerfTsc:1; |
| 234 | /// |
| 235 | /// [Bit 28] L3 Performance Counter Extensions. |
| 236 | /// |
| 237 | UINT32 PerfCtrExtL3:1; |
| 238 | /// |
| 239 | /// [Bit 29] MWAITX and MONITORX capability. |
| 240 | /// |
| 241 | UINT32 MwaitExtended:1; |
| 242 | /// |
| 243 | /// [Bit 31:30] Reserved. |
| 244 | /// |
| 245 | UINT32 Reserved4:2; |
| 246 | } Bits; |
| 247 | /// |
| 248 | /// All bit fields as a 32-bit value |
| 249 | /// |
| 250 | UINT32 Uint32; |
| 251 | } CPUID_AMD_EXTENDED_CPU_SIG_ECX; |
| 252 | |
| 253 | /** |
| 254 | CPUID Extended Processor Signature and Features EDX for CPUID leaf |
| 255 | #CPUID_EXTENDED_CPU_SIG. |
| 256 | **/ |
| 257 | typedef union { |
| 258 | /// |
| 259 | /// Individual bit fields |
| 260 | /// |
| 261 | struct { |
| 262 | /// |
| 263 | /// [Bit 0] x87 floating point unit on-chip. |
| 264 | /// |
| 265 | UINT32 FPU:1; |
| 266 | /// |
| 267 | /// [Bit 1] Virtual-mode enhancements. |
| 268 | /// |
| 269 | UINT32 VME:1; |
| 270 | /// |
| 271 | /// [Bit 2] Debugging extensions, IO breakpoints, CR4.DE. |
| 272 | /// |
| 273 | UINT32 DE:1; |
| 274 | /// |
| 275 | /// [Bit 3] Page-size extensions (4 MB pages). |
| 276 | /// |
| 277 | UINT32 PSE:1; |
| 278 | /// |
| 279 | /// [Bit 4] Time stamp counter, RDTSC/RDTSCP instructions, CR4.TSD. |
| 280 | /// |
| 281 | UINT32 TSC:1; |
| 282 | /// |
| 283 | /// [Bit 5] MSRs, with RDMSR and WRMSR instructions. |
| 284 | /// |
| 285 | UINT32 MSR:1; |
| 286 | /// |
| 287 | /// [Bit 6] Physical-address extensions (PAE). |
| 288 | /// |
| 289 | UINT32 PAE:1; |
| 290 | /// |
| 291 | /// [Bit 7] Machine check exception, CR4.MCE. |
| 292 | /// |
| 293 | UINT32 MCE:1; |
| 294 | /// |
| 295 | /// [Bit 8] CMPXCHG8B instruction. |
| 296 | /// |
| 297 | UINT32 CMPXCHG8B:1; |
| 298 | /// |
| 299 | /// [Bit 9] APIC exists and is enabled. |
| 300 | /// |
| 301 | UINT32 APIC:1; |
| 302 | /// |
| 303 | /// [Bit 10] Reserved. |
| 304 | /// |
| 305 | UINT32 Reserved1:1; |
| 306 | /// |
| 307 | /// [Bit 11] SYSCALL and SYSRET instructions. |
| 308 | /// |
| 309 | UINT32 SYSCALL_SYSRET:1; |
| 310 | /// |
| 311 | /// [Bit 12] Memory-type range registers. |
| 312 | /// |
| 313 | UINT32 MTRR:1; |
| 314 | /// |
| 315 | /// [Bit 13] Page global extension, CR4.PGE. |
| 316 | /// |
| 317 | UINT32 PGE:1; |
| 318 | /// |
| 319 | /// [Bit 14] Machine check architecture, MCG_CAP. |
| 320 | /// |
| 321 | UINT32 MCA:1; |
| 322 | /// |
| 323 | /// [Bit 15] Conditional move instructions, CMOV, FCOMI, FCMOV. |
| 324 | /// |
| 325 | UINT32 CMOV:1; |
| 326 | /// |
| 327 | /// [Bit 16] Page attribute table. |
| 328 | /// |
| 329 | UINT32 PAT:1; |
| 330 | /// |
| 331 | /// [Bit 17] Page-size extensions. |
| 332 | /// |
| 333 | UINT32 PSE36 : 1; |
| 334 | /// |
| 335 | /// [Bit 19:18] Reserved. |
| 336 | /// |
| 337 | UINT32 Reserved2:2; |
| 338 | /// |
| 339 | /// [Bit 20] No-execute page protection. |
| 340 | /// |
| 341 | UINT32 NX:1; |
| 342 | /// |
| 343 | /// [Bit 21] Reserved. |
| 344 | /// |
| 345 | UINT32 Reserved3:1; |
| 346 | /// |
| 347 | /// [Bit 22] AMD Extensions to MMX instructions. |
| 348 | /// |
| 349 | UINT32 MmxExt:1; |
| 350 | /// |
| 351 | /// [Bit 23] MMX instructions. |
| 352 | /// |
| 353 | UINT32 MMX:1; |
| 354 | /// |
| 355 | /// [Bit 24] FXSAVE and FXRSTOR instructions. |
| 356 | /// |
| 357 | UINT32 FFSR:1; |
| 358 | /// |
| 359 | /// [Bit 25] FXSAVE and FXRSTOR instruction optimizations. |
| 360 | /// |
| 361 | UINT32 FFXSR:1; |
| 362 | /// |
| 363 | /// [Bit 26] 1-GByte large page support. |
| 364 | /// |
| 365 | UINT32 Page1GB:1; |
| 366 | /// |
| 367 | /// [Bit 27] RDTSCP instructions. |
| 368 | /// |
| 369 | UINT32 RDTSCP:1; |
| 370 | /// |
| 371 | /// [Bit 28] Reserved. |
| 372 | /// |
| 373 | UINT32 Reserved4:1; |
| 374 | /// |
| 375 | /// [Bit 29] Long Mode. |
| 376 | /// |
| 377 | UINT32 LM:1; |
| 378 | /// |
| 379 | /// [Bit 30] 3DNow! instructions. |
| 380 | /// |
| 381 | UINT32 ThreeDNow:1; |
| 382 | /// |
| 383 | /// [Bit 31] AMD Extensions to 3DNow! instructions. |
| 384 | /// |
| 385 | UINT32 ThreeDNowExt:1; |
| 386 | } Bits; |
| 387 | /// |
| 388 | /// All bit fields as a 32-bit value |
| 389 | /// |
| 390 | UINT32 Uint32; |
| 391 | } CPUID_AMD_EXTENDED_CPU_SIG_EDX; |
| 392 | |
| 393 | |
| 394 | /** |
| 395 | CPUID Linear Physical Address Size |
| 396 | |
| 397 | @param EAX CPUID_VIR_PHY_ADDRESS_SIZE (0x80000008) |
| 398 | |
| 399 | @retval EAX Linear/Physical Address Size described by the type |
| 400 | CPUID_AMD_VIR_PHY_ADDRESS_SIZE_EAX. |
| 401 | @retval EBX Linear/Physical Address Size described by the type |
| 402 | CPUID_AMD_VIR_PHY_ADDRESS_SIZE_EBX. |
| 403 | @retval ECX Linear/Physical Address Size described by the type |
| 404 | CPUID_AMD_VIR_PHY_ADDRESS_SIZE_ECX. |
| 405 | @retval EDX Reserved. |
| 406 | **/ |
| 407 | |
| 408 | /** |
| 409 | CPUID Linear Physical Address Size EAX for CPUID leaf |
| 410 | #CPUID_VIR_PHY_ADDRESS_SIZE. |
| 411 | **/ |
| 412 | typedef union { |
| 413 | /// |
| 414 | /// Individual bit fields |
| 415 | /// |
| 416 | struct { |
| 417 | /// |
| 418 | /// [Bits 7:0] Maximum physical byte address size in bits. |
| 419 | /// |
| 420 | UINT32 PhysicalAddressBits:8; |
| 421 | /// |
| 422 | /// [Bits 15:8] Maximum linear byte address size in bits. |
| 423 | /// |
| 424 | UINT32 LinearAddressBits:8; |
| 425 | /// |
| 426 | /// [Bits 23:16] Maximum guest physical byte address size in bits. |
| 427 | /// |
| 428 | UINT32 GuestPhysAddrSize:8; |
| 429 | /// |
| 430 | /// [Bit 31:24] Reserved. |
| 431 | /// |
| 432 | UINT32 Reserved:8; |
| 433 | } Bits; |
| 434 | /// |
| 435 | /// All bit fields as a 32-bit value |
| 436 | /// |
| 437 | UINT32 Uint32; |
| 438 | } CPUID_AMD_VIR_PHY_ADDRESS_SIZE_EAX; |
| 439 | |
| 440 | /** |
| 441 | CPUID Linear Physical Address Size EBX for CPUID leaf |
| 442 | #CPUID_VIR_PHY_ADDRESS_SIZE. |
| 443 | **/ |
| 444 | typedef union { |
| 445 | /// |
| 446 | /// Individual bit fields |
| 447 | /// |
| 448 | struct { |
| 449 | /// |
| 450 | /// [Bits 0] Clear Zero Instruction. |
| 451 | /// |
| 452 | UINT32 CLZERO:1; |
| 453 | /// |
| 454 | /// [Bits 1] Instructions retired count support. |
| 455 | /// |
| 456 | UINT32 IRPerf:1; |
| 457 | /// |
| 458 | /// [Bits 2] Restore error pointers for XSave instructions. |
| 459 | /// |
| 460 | UINT32 XSaveErPtr:1; |
| 461 | /// |
| 462 | /// [Bit 31:3] Reserved. |
| 463 | /// |
| 464 | UINT32 Reserved:29; |
| 465 | } Bits; |
| 466 | /// |
| 467 | /// All bit fields as a 32-bit value |
| 468 | /// |
| 469 | UINT32 Uint32; |
| 470 | } CPUID_AMD_VIR_PHY_ADDRESS_SIZE_EBX; |
| 471 | |
| 472 | /** |
| 473 | CPUID Linear Physical Address Size ECX for CPUID leaf |
| 474 | #CPUID_VIR_PHY_ADDRESS_SIZE. |
| 475 | **/ |
| 476 | typedef union { |
| 477 | /// |
| 478 | /// Individual bit fields |
| 479 | /// |
| 480 | struct { |
| 481 | /// |
| 482 | /// [Bits 7:0] Number of threads - 1. |
| 483 | /// |
| 484 | UINT32 NC:8; |
| 485 | /// |
| 486 | /// [Bit 11:8] Reserved. |
| 487 | /// |
| 488 | UINT32 Reserved1:4; |
| 489 | /// |
| 490 | /// [Bits 15:12] APIC ID size. |
| 491 | /// |
| 492 | UINT32 ApicIdCoreIdSize:4; |
| 493 | /// |
| 494 | /// [Bits 17:16] Performance time-stamp counter size. |
| 495 | /// |
| 496 | UINT32 PerfTscSize:2; |
| 497 | /// |
| 498 | /// [Bit 31:18] Reserved. |
| 499 | /// |
| 500 | UINT32 Reserved2:14; |
| 501 | } Bits; |
| 502 | /// |
| 503 | /// All bit fields as a 32-bit value |
| 504 | /// |
| 505 | UINT32 Uint32; |
| 506 | } CPUID_AMD_VIR_PHY_ADDRESS_SIZE_ECX; |
| 507 | |
| 508 | |
| 509 | /** |
| 510 | CPUID AMD Processor Topology |
| 511 | |
| 512 | @param EAX CPUID_AMD_PROCESSOR_TOPOLOGY (0x8000001E) |
| 513 | |
| 514 | @retval EAX Extended APIC ID described by the type |
| 515 | CPUID_AMD_PROCESSOR_TOPOLOGY_EAX. |
| 516 | @retval EBX Core Identifiers described by the type |
| 517 | CPUID_AMD_PROCESSOR_TOPOLOGY_EBX. |
| 518 | @retval ECX Node Identifiers described by the type |
| 519 | CPUID_AMD_PROCESSOR_TOPOLOGY_ECX. |
| 520 | @retval EDX Reserved. |
| 521 | **/ |
| 522 | #define CPUID_AMD_PROCESSOR_TOPOLOGY 0x8000001E |
| 523 | |
| 524 | /** |
| 525 | CPUID AMD Processor Topology EAX for CPUID leaf |
| 526 | #CPUID_AMD_PROCESSOR_TOPOLOGY. |
| 527 | **/ |
| 528 | typedef union { |
| 529 | /// |
| 530 | /// Individual bit fields |
| 531 | /// |
| 532 | struct { |
| 533 | /// |
| 534 | /// [Bit 31:0] Extended APIC Id. |
| 535 | /// |
| 536 | UINT32 ExtendedApicId; |
| 537 | } Bits; |
| 538 | /// |
| 539 | /// All bit fields as a 32-bit value |
| 540 | /// |
| 541 | UINT32 Uint32; |
| 542 | } CPUID_AMD_PROCESSOR_TOPOLOGY_EAX; |
| 543 | |
| 544 | /** |
| 545 | CPUID AMD Processor Topology EBX for CPUID leaf |
| 546 | #CPUID_AMD_PROCESSOR_TOPOLOGY. |
| 547 | **/ |
| 548 | typedef union { |
| 549 | /// |
| 550 | /// Individual bit fields |
| 551 | /// |
| 552 | struct { |
| 553 | /// |
| 554 | /// [Bits 7:0] Core Id. |
| 555 | /// |
| 556 | UINT32 CoreId:8; |
| 557 | /// |
| 558 | /// [Bits 15:8] Threads per core. |
| 559 | /// |
| 560 | UINT32 ThreadsPerCore:8; |
| 561 | /// |
| 562 | /// [Bit 31:16] Reserved. |
| 563 | /// |
| 564 | UINT32 Reserved:16; |
| 565 | } Bits; |
| 566 | /// |
| 567 | /// All bit fields as a 32-bit value |
| 568 | /// |
| 569 | UINT32 Uint32; |
| 570 | } CPUID_AMD_PROCESSOR_TOPOLOGY_EBX; |
| 571 | |
| 572 | /** |
| 573 | CPUID AMD Processor Topology ECX for CPUID leaf |
| 574 | #CPUID_AMD_PROCESSOR_TOPOLOGY. |
| 575 | **/ |
| 576 | typedef union { |
| 577 | /// |
| 578 | /// Individual bit fields |
| 579 | /// |
| 580 | struct { |
| 581 | /// |
| 582 | /// [Bits 7:0] Node Id. |
| 583 | /// |
| 584 | UINT32 NodeId:8; |
| 585 | /// |
| 586 | /// [Bits 10:8] Nodes per processor. |
| 587 | /// |
| 588 | UINT32 NodesPerProcessor:3; |
| 589 | /// |
| 590 | /// [Bit 31:11] Reserved. |
| 591 | /// |
| 592 | UINT32 Reserved:21; |
| 593 | } Bits; |
| 594 | /// |
| 595 | /// All bit fields as a 32-bit value |
| 596 | /// |
| 597 | UINT32 Uint32; |
| 598 | } CPUID_AMD_PROCESSOR_TOPOLOGY_ECX; |
| 599 | |
| 600 | |
| 601 | /** |
| 602 | CPUID Memory Encryption Information |
| 603 | |
| 604 | @param EAX CPUID_MEMORY_ENCRYPTION_INFO (0x8000001F) |
| 605 | |
| 606 | @retval EAX Returns the memory encryption feature support status. |
| 607 | @retval EBX If memory encryption feature is present then return |
| 608 | the page table bit number used to enable memory encryption support |
| 609 | and reducing of physical address space in bits. |
| 610 | @retval ECX Returns number of encrypted guest supported simultaneously. |
| 611 | @retval EDX Returns minimum SEV enabled and SEV disabled ASID. |
| 612 | |
| 613 | <b>Example usage</b> |
| 614 | @code |
| 615 | UINT32 Eax; |
| 616 | UINT32 Ebx; |
| 617 | UINT32 Ecx; |
| 618 | UINT32 Edx; |
| 619 | |
| 620 | AsmCpuid (CPUID_MEMORY_ENCRYPTION_INFO, &Eax, &Ebx, &Ecx, &Edx); |
| 621 | @endcode |
| 622 | **/ |
| 623 | |
| 624 | #define CPUID_MEMORY_ENCRYPTION_INFO 0x8000001F |
| 625 | |
| 626 | /** |
| 627 | CPUID Memory Encryption support information EAX for CPUID leaf |
| 628 | #CPUID_MEMORY_ENCRYPTION_INFO. |
| 629 | **/ |
| 630 | typedef union { |
| 631 | /// |
| 632 | /// Individual bit fields |
| 633 | /// |
| 634 | struct { |
| 635 | /// |
| 636 | /// [Bit 0] Secure Memory Encryption (Sme) Support |
| 637 | /// |
| 638 | UINT32 SmeBit:1; |
| 639 | |
| 640 | /// |
| 641 | /// [Bit 1] Secure Encrypted Virtualization (Sev) Support |
| 642 | /// |
| 643 | UINT32 SevBit:1; |
| 644 | |
| 645 | /// |
| 646 | /// [Bit 2] Page flush MSR support |
| 647 | /// |
| 648 | UINT32 PageFlushMsrBit:1; |
| 649 | |
| 650 | /// |
| 651 | /// [Bit 3] Encrypted state support |
| 652 | /// |
| 653 | UINT32 SevEsBit:1; |
| 654 | |
| 655 | /// |
| 656 | /// [Bit 31:4] Reserved |
| 657 | /// |
| 658 | UINT32 ReservedBits:28; |
| 659 | } Bits; |
| 660 | /// |
| 661 | /// All bit fields as a 32-bit value |
| 662 | /// |
| 663 | UINT32 Uint32; |
| 664 | } CPUID_MEMORY_ENCRYPTION_INFO_EAX; |
| 665 | |
| 666 | /** |
| 667 | CPUID Memory Encryption support information EBX for CPUID leaf |
| 668 | #CPUID_MEMORY_ENCRYPTION_INFO. |
| 669 | **/ |
| 670 | typedef union { |
| 671 | /// |
| 672 | /// Individual bit fields |
| 673 | /// |
| 674 | struct { |
| 675 | /// |
| 676 | /// [Bit 5:0] Page table bit number used to enable memory encryption |
| 677 | /// |
| 678 | UINT32 PtePosBits:6; |
| 679 | |
| 680 | /// |
| 681 | /// [Bit 11:6] Reduction of system physical address space bits when |
| 682 | /// memory encryption is enabled |
| 683 | /// |
| 684 | UINT32 ReducedPhysBits:5; |
| 685 | |
| 686 | /// |
| 687 | /// [Bit 31:12] Reserved |
| 688 | /// |
| 689 | UINT32 ReservedBits:21; |
| 690 | } Bits; |
| 691 | /// |
| 692 | /// All bit fields as a 32-bit value |
| 693 | /// |
| 694 | UINT32 Uint32; |
| 695 | } CPUID_MEMORY_ENCRYPTION_INFO_EBX; |
| 696 | |
| 697 | /** |
| 698 | CPUID Memory Encryption support information ECX for CPUID leaf |
| 699 | #CPUID_MEMORY_ENCRYPTION_INFO. |
| 700 | **/ |
| 701 | typedef union { |
| 702 | /// |
| 703 | /// Individual bit fields |
| 704 | /// |
| 705 | struct { |
| 706 | /// |
| 707 | /// [Bit 31:0] Number of encrypted guest supported simultaneously |
| 708 | /// |
| 709 | UINT32 NumGuests; |
| 710 | } Bits; |
| 711 | /// |
| 712 | /// All bit fields as a 32-bit value |
| 713 | /// |
| 714 | UINT32 Uint32; |
| 715 | } CPUID_MEMORY_ENCRYPTION_INFO_ECX; |
| 716 | |
| 717 | /** |
| 718 | CPUID Memory Encryption support information EDX for CPUID leaf |
| 719 | #CPUID_MEMORY_ENCRYPTION_INFO. |
| 720 | **/ |
| 721 | typedef union { |
| 722 | /// |
| 723 | /// Individual bit fields |
| 724 | /// |
| 725 | struct { |
| 726 | /// |
| 727 | /// [Bit 31:0] Minimum SEV enabled, SEV-ES disabled ASID |
| 728 | /// |
| 729 | UINT32 MinAsid; |
| 730 | } Bits; |
| 731 | /// |
| 732 | /// All bit fields as a 32-bit value |
| 733 | /// |
| 734 | UINT32 Uint32; |
| 735 | } CPUID_MEMORY_ENCRYPTION_INFO_EDX; |
| 736 | |
| 737 | #endif |