IntelFrameworkPkg/FrameworkSpecConformance.txt

   1 ##
   2 # This file is used to document mismatches between Intel Platform Innovation Framework specification
   3 # (http://www.intel.com/technology/framework/spec.htm) and data structures defind at IntelFrameworkPkg
   4 # package in EdkII Open Source Project (https://edk2.tianocore.org/source/browse/edk2/trunk/edk2/IntelFrameworkPkg)
   5 ##
   6
   7 ##
   8 # The general consideration about keeping the mismatches in EdkII:
   9 # 1. Some definitions defined in Framework specification may bring a little complexity on implementation. EdkII
  10 #    makes changes on them from the view of code development.
  11 # 2. Some definitions are NOT defined in Framework specification, but introduced in Edk. EdkII chooses to keep
  12 #    them for backward-compatibility.
  13 # 3. The name of some definitions are NOT consistent with Framework specification. If the name doesn't bring
  14 #    misunderstanding literally, EdkII chooses to keep them for backward-compatibility.
  15 # 4. Some defintitions don't exactly match Framework specification, some new field members are introduced in EdkII
  16 #    to reflect the latest industry standard.
  17 #
  18 # Note:
  19 #    The IntelFrameworkPkg contains Framework specification contents that were not adopted by UEFI/PI, and names may be
  20 #    changed (such as adding "FRAMEWORK_") to avoid name collisions with approved UEFI/PI specifications.
  21 ##
  22
  23 ##
  24 # Mismatch with Intel Platform Innovation Framework for DataHubSubclass Specification (Version 0.90)
  25 ##
  26   1. Guid/DataHubRecords.h
  27     #define EFI_STRING_TOKEN          UINT16
  28
  29     This macro named "EFI_STRING_TOKEN" is *NOT* defined in Framework specification. Keeping this inconsistency
  30     for backward compatibility.
  31
  32   2. Guid/DataHubRecords.h
  33     #pragma pack(1)
  34     typedef struct {
  35       UINT8                             LastPciBus;
  36     } EFI_MISC_LAST_PCI_BUS_DATA;
  37     ...
  38     typedef struct {
  39       EFI_SUBCLASS_TYPE1_HEADER         Header;
  40       EFI_MISC_SUBCLASS_RECORDS         Record;
  41     } EFI_MISC_SUBCLASS_DRIVER_DATA;
  42     #pragma pack()
  43
  44     Section "Alignment" in DataHubSubclass specification say "Fields in a data hub record should be aligned at their
  45     natural boundaries". But in EdkII, the data structures above are packed.
  46     Keeping this inconsistency for backward compatibility.
  47
  48   3. Guid/DataHubRecords.h
  49     #define EFI_SUBCLASS_INSTANCE_RESERVED       0
  50     #define EFI_SUBCLASS_INSTANCE_NON_APPLICABLE 0xFFFF
  51
  52     The symbols above are *NOT* defined in DataHubSubclass specification. But the values are defined and are meaningful.
  53     According to DataHubSubclass spec, value 0 means Reserved and -1 means Not Applicable. EdkII introduces these macros
  54     to faciliate user development.
  55
  56 ##
  57 # Mismatch with Intel Platform Innovation Framework for CacheSubclass Specification (Version 0.90)
  58 ##
  59   1. Guid/DataHubRecords.h
  60     typedef EFI_EXP_BASE2_DATA       EFI_MAXIMUM_CACHE_SIZE_DATA;
  61
  62     The definition named "EFI_MAXIMUM_CACHE_SIZE_DATA" is *NOT* consistent with CacheSubclass specification, in which
  63     the name should be EFI_CACHE_MAXIMUM_SIZE_DATA. Keeping this inconsistency for backward compatibility.
  64
  65   2. Guid/DataHubRecords.h
  66     typedef struct {
  67       UINT32                          Level           :3;
  68       UINT32                          Socketed        :1;
  69       UINT32                          Reserved2       :1;
  70       UINT32                          Location        :2;
  71       UINT32                          Enable          :1;
  72       UINT32                          OperationalMode :2;
  73       UINT32                          Reserved1       :22;
  74     } EFI_CACHE_CONFIGURATION_DATA;
  75
  76     The field type of the definition is *NOT* consistent with CacheSubclass specification. Specification defines
  77     them as UINT16, which is incorrect and should be UINT32 because the total width of bit-fields is 32bits width.
  78
  79   3. Guid/DataHubRecords.h
  80     typedef enum {
  81       CacheSizeRecordType              = 1,
  82       MaximumSizeCacheRecordType       = 2,
  83       CacheSpeedRecordType             = 3,
  84       CacheSocketRecordType            = 4,
  85       CacheSramTypeRecordType          = 5,
  86       CacheInstalledSramTypeRecordType = 6,
  87       CacheErrorTypeRecordType         = 7,
  88       CacheTypeRecordType              = 8,
  89       CacheAssociativityRecordType     = 9,
  90       CacheConfigRecordType            = 10
  91     } EFI_CACHE_VARIABLE_RECORD_TYPE;
  92
  93     The data structure and all enumeration fields are *NOT* defined in CacheSubclass specification, which only
  94     defines the following macros to specify the record number of the data record:
  95       #define EFI_CACHE_SIZE_RECORD_NUMBER                    0x00000001
  96       #define EFI_CACHE_MAXIMUM_SIZE_RECORD_NUMBER            0x00000002
  97       #define EFI_CACHE_SPEED_RECORD_NUMBER                   0x00000003
  98       #define EFI_CACHE_SOCKET_RECORD_NUMBER                  0x00000004
  99       #define EFI_CACHE_SRAM_SUPPORT_RECORD_NUMBER            0x00000005
 100       #define EFI_CACHE_SRAM_INSTALL_RECORD_NUMBER            0x00000006
 101       #define EFI_CACHE_ERROR_SUPPORT_RECORD_NUMBER           0x00000007
 102       #define EFI_CACHE_TYPE_RECORD_NUMBER                    0x00000008
 103       #define EFI_CACHE_ASSOCIATIVITY_RECORD_NUMBER           0x00000009
 104       #define EFI_CACHE_CONFIGURATION_RECORD_NUMBER           0x0000000A
 105     Keeping this inconsistency for backward compatibility.
 106
 107   4. Guid/DataHubRecords.h
 108     typedef union {
 109       EFI_CACHE_SIZE_DATA               CacheSize;
 110       ...
 111       EFI_CACHE_ASSOCIATION_DATA        CacheAssociation;
 112     } EFI_CACHE_VARIABLE_RECORD;
 113
 114     typedef struct {
 115        EFI_SUBCLASS_TYPE1_HEADER        DataRecordHeader;
 116        EFI_CACHE_VARIABLE_RECORD        VariableRecord;
 117     } EFI_CACHE_DATA_RECORD;
 118
 119     The definitions above are *NOT* defined in CacheSubclass specification. EdkII introduces them to simplify the
 120     code logic. Therefore developer doesn't need to allocate memory dynamically to construct variable length data record.
 121     Keeping this inconsistency for backward compatibility.
 122
 123 ##
 124 # Mismatch with Intel Platform Innovation Framework for ProcSubclass Specification (Version 0.90)
 125 ##
 126   1. Guid/DataHubRecords.h
 127     #define EFI_PROCESSOR_SUBCLASS_VERSION    0x00010000
 128
 129     The value of the definition is *NOT* consistent with ProcSubclass specification, in which the value is 0x0100.
 130     Keeping this inconsistency from the perspective of binary consistency.
 131
 132   2. Guid/DataHubRecords.h
 133     typedef struct {
 134       UINT32                            ProcessorBrandIndex    :8;
 135       UINT32                            ProcessorClflush       :8;
 136       UINT32                            ProcessorReserved      :8;
 137       UINT32                            ProcessorDfltApicId    :8;
 138     } EFI_PROCESSOR_MISC_INFO;
 139
 140     The definition is *NOT* consistent with ProcSubclass specification, in which the name of third field is defined
 141     as "LogicalProcessorCount" rather than "ProcessorReserved".
 142     Keeping this inconsistency for backward compatibility.
 143
 144   3. Guid/DataHubRecords.h
 145     typedef enum {
 146       ...
 147       EfiProcessorFamilyUltraSparcIIIi         = 0x58,
 148       ...
 149       EfiProcessorFamilyIntelPentiumM          = 0xB9,
 150       EfiProcessorFamilyIntelCeleronD          = 0xBA,
 151       EfiProcessorFamilyIntelPentiumD          = 0xBB,
 152       EfiProcessorFamilyIntelPentiumEx         = 0xBC,
 153       EfiProcessorFamilyIntelCoreSolo          = 0xBD,
 154       EfiProcessorFamilyReserved               = 0xBE,
 155       EfiProcessorFamilyIntelCore2             = 0xBF,
 156       ...
 157       EfiProcessorFamilyG6                     = 0xCB,
 158       EfiProcessorFamilyzArchitectur           = 0xCC,
 159       EfiProcessorFamilyViaC7M                 = 0xD2,
 160       EfiProcessorFamilyViaC7D                 = 0xD3,
 161       EfiProcessorFamilyViaC7                  = 0xD4,
 162       EfiProcessorFamilyViaEden                = 0xD5,
 163       ...
 164       EfiProcessorFamilyIndicatorFamily2       = 0xFE,
 165       EfiProcessorFamilyReserved1              = 0xFF
 166     } EFI_PROCESSOR_FAMILY_DATA;
 167
 168     a. In ProcSubclass specification 0.9, the field name whose value equals to 0x58 is "EfiProcessorFamilyUltraSparcIIi".
 169        Due to the name has been defined in previous field, changing it to "EfiProcessorFamilyUltraSparcIIIi" to avoid
 170        build break.
 171     b. The other fields listed here are *NOT* defined in ProcSubclass specification 0.9. They are introduced to
 172        support new processor family (type 4) defined in SmBios 2.6 specification.
 173        Keeping this inconsistency to reflect the latest industry standard.
 174
 175   4. Guid/DataHubRecords.h
 176     typedef enum {
 177       ...
 178       EfiProcessorSocket939              = 0x12,
 179       EfiProcessorSocketmPGA604          = 0x13,
 180       EfiProcessorSocketLGA771           = 0x14,
 181       EfiProcessorSocketLGA775           = 0x15
 182     } EFI_PROCESSOR_SOCKET_TYPE_DATA;
 183
 184     The fields listed here are *NOT* defined in ProcSubclass specification 0.9. They are introduced to support
 185     new processor upgrade (type 4 offset 19h) defined in SmBios 2.6 specification.
 186     Keeping this inconsistency to reflect the latest industry standard.
 187
 188   5. Guid/DataHubRecords.h
 189     typedef EFI_INTER_LINK_DATA         EFI_CACHE_ASSOCIATION_DATA;
 190
 191     The definition name "EFI_CACHE_ASSOCIATION_DATA" is *NOT* consistent with ProcSubclass specification 0.9, in which
 192     the name should be "EFI_PROCESSOR_CACHE_ASSOCIATION_DATA". Keeping this inconsistency for backward compatibility.
 193
 194   6. Guid/DataHubRecords.h
 195     typedef enum {
 196       EfiProcessorHealthy        = 1,
 197       EfiProcessorPerfRestricted = 2,
 198       EfiProcessorFuncRestricted = 3
 199     } EFI_PROCESSOR_HEALTH_STATUS;
 200
 201     The structure name "EFI_PROCESSOR_HEALTH_STATUS" is *NOT* consistent with ProcSubclass specification 0.9, in which
 202     the name should be "EFI_PROCESSOR_HEALTH_STATUS_DATA". Keeping this inconsistency for backward compatibility.
 203
 204   7. Guid/DataHubRecords.h
 205     typedef enum {
 206       ProcessorCoreFrequencyRecordType     = 1,
 207       ProcessorFsbFrequencyRecordType      = 2,
 208       ProcessorVersionRecordType           = 3,
 209       ProcessorManufacturerRecordType      = 4,
 210       ProcessorSerialNumberRecordType      = 5,
 211       ProcessorIdRecordType                = 6,
 212       ProcessorTypeRecordType              = 7,
 213       ProcessorFamilyRecordType            = 8,
 214       ProcessorVoltageRecordType           = 9,
 215       ProcessorApicBaseAddressRecordType   = 10,
 216       ProcessorApicIdRecordType            = 11,
 217       ProcessorApicVersionNumberRecordType = 12,
 218       CpuUcodeRevisionDataRecordType       = 13,
 219       ProcessorStatusRecordType            = 14,
 220       ProcessorSocketTypeRecordType        = 15,
 221       ProcessorSocketNameRecordType        = 16,
 222       CacheAssociationRecordType           = 17,
 223       ProcessorMaxCoreFrequencyRecordType  = 18,
 224       ProcessorAssetTagRecordType          = 19,
 225       ProcessorMaxFsbFrequencyRecordType   = 20,
 226       ProcessorPackageNumberRecordType     = 21,
 227       ProcessorCoreFrequencyListRecordType = 22,
 228       ProcessorFsbFrequencyListRecordType  = 23,
 229       ProcessorHealthStatusRecordType      = 24,
 230       ProcessorCoreCountRecordType         = 25,
 231       ProcessorEnabledCoreCountRecordType  = 26,
 232       ProcessorThreadCountRecordType       = 27,
 233       ProcessorCharacteristicsRecordType   = 28,
 234       ProcessorFamily2RecordType           = 29,
 235       ProcessorPartNumberRecordType        = 30,
 236     } EFI_CPU_VARIABLE_RECORD_TYPE;
 237
 238     The enumeration fields from ProcessorCoreFrequencyRecordType to ProcessorHealthStatusRecordType are *NOT* defined
 239     in ProcSubclass specification 0.9, which only defines the following macros to specify the record number of the data record:
 240       #define EFI_PROCESSOR_FREQUENCY_RECORD_NUMBER           0x00000001
 241       #define EFI_PROCESSOR_BUS_FREQUENCY_RECORD_NUMBER       0x00000002
 242       #define EFI_PROCESSOR_VERSION_RECORD_NUMBER             0x00000003
 243       #define EFI_PROCESSOR_MANUFACTURER_RECORD_NUMBER        0x00000004
 244       #define EFI_PROCESSOR_SERIAL_NUMBER_RECORD_NUMBER       0x00000005
 245       #define EFI_PROCESSOR_ID_RECORD_NUMBER                  0x00000006
 246       #define EFI_PROCESSOR_TYPE_RECORD_NUMBER                0x00000007
 247       #define EFI_PROCESSOR_FAMILY_RECORD_NUMBER              0x00000008
 248       #define EFI_PROCESSOR_VOLTAGE_RECORD_NUMBER             0x00000009
 249       #define EFI_PROCESSOR_APIC_BASE_ADDRESS_RECORD_NUMBER   0x0000000A
 250       #define EFI_PROCESSOR_APIC_ID_RECORD_NUMBER             0x0000000B
 251       #define EFI_PROCESSOR_APIC_VER_NUMBER_RECORD_NUMBER     0x0000000C
 252       #define EFI_PROCESSOR_MICROCODE_REVISION_RECORD_NUMBER  0x0000000D
 253       #define EFI_PROCESSOR_STATUS_RECORD_NUMBER              0x0000000E
 254       #define EFI_PROCESSOR_SOCKET_TYPE_RECORD_NUMBER         0x0000000F
 255       #define EFI_PROCESSOR_SOCKET_NAME_RECORD_NUMBER         0x00000010
 256       #define EFI_PROCESSOR_CACHE_ASSOCIATION_RECORD_NUMBER   0x00000011
 257       #define EFI_PROCESSOR_MAX_FREQUENCY_RECORD_NUMBER       0x00000012
 258       #define EFI_PROCESSOR_ASSET_TAG_RECORD_NUMBER           0x00000013
 259       #define EFI_PROCESSOR_MAX_FSB_FREQUENCY_RECORD_NUMBER   0x00000014
 260       #define EFI_PROCESSOR_PACKAGE_NUMBER_RECORD_NUMBER      0x00000015
 261       #define EFI_PROCESSOR_FREQUENCY_LIST_RECORD_NUMBER      0x00000016
 262       #define EFI_PROCESSOR_FSB_FREQUENCY_LIST_RECORD_NUMBER  0x00000017
 263       #define EFI_PROCESSOR_HEALTH_STATUS_RECORD_NUMBER       0x00000018
 264     Keeping this inconsistency for backward compatibility.
 265
 266     The enumeration fields from ProcessorCoreCountRecordType to ProcessorPartNumberRecordType are *NOT* defined
 267     in ProcSubclass specification 0.9.
 268     They are introduced to support new fields for type 4 defined in SmBios 2.6 specification.
 269     Keeping this inconsistency to reflect the latest industry standard.
 270
 271   8. Guid/DataHubRecords.h
 272     typedef union {
 273       EFI_PROCESSOR_CORE_FREQUENCY_LIST_DATA  ProcessorCoreFrequencyList;
 274       ...
 275       EFI_PROCESSOR_FAMILY2_DATA              ProcessorFamily2;
 276     } EFI_CPU_VARIABLE_RECORD;
 277
 278     typedef struct {
 279       EFI_SUBCLASS_TYPE1_HEADER         DataRecordHeader;
 280       EFI_CPU_VARIABLE_RECORD           VariableRecord;
 281     } EFI_CPU_DATA_RECORD;
 282
 283     The definitions above are *NOT* defined in ProcSubclass specification 0.9. EdkII introduces them to simplify the
 284     code logic. Therefore developer doesn't need to allocate memory dynamically to construct variable length data record.
 285     Keeping this inconsistency for backward compatibility.
 286
 287   9. Guid/DataHubRecords.h
 288     typedef STRING_REF                  EFI_PROCESSOR_PART_NUMBER_DATA;
 289
 290     typedef enum {
 291       EfiProcessorFamilySh3           = 0x104,
 292       EfiProcessorFamilySh4           = 0x105,
 293       EfiProcessorFamilyArm           = 0x118,
 294       EfiProcessorFamilyStrongArm     = 0x119,
 295       EfiProcessorFamily6x86          = 0x12C,
 296       EfiProcessorFamilyMediaGx       = 0x12D,
 297       EfiProcessorFamilyMii           = 0x12E,
 298       EfiProcessorFamilyWinChip       = 0x140,
 299       EfiProcessorFamilyDsp           = 0x15E,
 300       EfiProcessorFamilyVideo         = 0x1F4
 301     } EFI_PROCESSOR_FAMILY2_DATA;
 302
 303     typedef UINT8                       EFI_PROCESSOR_CORE_COUNT_DATA;
 304
 305     typedef UINT8                       EFI_PROCESSOR_ENABLED_CORE_COUNT_DATA;
 306
 307     typedef UINT8                       EFI_PROCESSOR_THREAD_COUNT_DATA;
 308
 309     typedef struct {
 310       UINT16  Reserved              :1;
 311       UINT16  Unknown               :1;
 312       UINT16  Capable64Bit          :1;
 313       UINT16  Reserved2             :13;
 314     } EFI_PROCESSOR_CHARACTERISTICS_DATA;
 315
 316     The fields listed here are *NOT* defined in ProcSubclass specification 0.9. They are introduced to support
 317     new fields for type 4 defined in SmBios 2.6 specification.
 318     Keeping this inconsistency to reflect the latest industry standard.
 319
 320 ##
 321 # Mismatch with Intel Platform Innovation Framework for MemSubclass Specification (Version 0.90)
 322 ##
 323   1. Guid/DataHubRecords.h
 324     typedef enum _EFI_MEMORY_FORM_FACTOR {
 325       ...
 326       EfiMemoryFormFactorFbDimm                   = 0x0F
 327     } EFI_MEMORY_FORM_FACTOR;
 328
 329     typedef enum _EFI_MEMORY_ARRAY_TYPE {
 330       ...
 331       EfiMemoryTypeDdr2                           = 0x13,
 332       EfiMemoryTypeDdr2FbDimm                     = 0x14
 333     } EFI_MEMORY_ARRAY_TYPE;
 334
 335     typedef enum {
 336       ...
 337       EfiMemoryStatePartial      = 6
 338     } EFI_MEMORY_STATE;
 339
 340     The fields listed above are *NOT* defined in MemSubclass specification 0.9. They are introduced to support
 341     new memory device (type 17) defined in SmBios 2.6 specification.
 342     Keeping this inconsistency to reflect the latest industry standard.
 343
 344   2. Guid/DataHubRecords.h
 345     typedef struct {
 346       ...
 347       EFI_EXP_BASE10_DATA      MemorySpeed;
 348       ...
 349     } EFI_MEMORY_ARRAY_LINK_DATA;
 350
 351     The field name "MemorySpeed" in the definition above is *NOT* consistent with MemSubclass specification 0.9,
 352     in which it is defined as MemoryTypeSpeed. Keeping this inconsistency for backward compatibility.
 353
 354   3. Guid/DataHubRecords.h
 355     #define EFI_MEMORY_CONTROLLER_INFORMATION_RECORD_NUMBER    0x00000008
 356
 357     typedef enum {
 358       EfiErrorDetectingMethodOther   = 1,
 359       EfiErrorDetectingMethodUnknown = 2,
 360       EfiErrorDetectingMethodNone    = 3,
 361       EfiErrorDetectingMethodParity  = 4,
 362       EfiErrorDetectingMethod32Ecc   = 5,
 363       EfiErrorDetectingMethod64Ecc   = 6,
 364       EfiErrorDetectingMethod128Ecc  = 7,
 365       EfiErrorDetectingMethodCrc     = 8
 366     } EFI_MEMORY_ERROR_DETECT_METHOD_TYPE;
 367
 368     typedef struct {
 369       UINT8                             Other                 :1;
 370       UINT8                             Unknown               :1;
 371       UINT8                             None                  :1;
 372       UINT8                             SingleBitErrorCorrect :1;
 373       UINT8                             DoubleBitErrorCorrect :1;
 374       UINT8                             ErrorScrubbing        :1;
 375       UINT8                             Reserved              :2;
 376     } EFI_MEMORY_ERROR_CORRECT_CAPABILITY;
 377
 378     typedef enum {
 379       EfiMemoryInterleaveOther      = 1,
 380       EfiMemoryInterleaveUnknown    = 2,
 381       EfiMemoryInterleaveOneWay     = 3,
 382       EfiMemoryInterleaveTwoWay     = 4,
 383       EfiMemoryInterleaveFourWay    = 5,
 384       EfiMemoryInterleaveEightWay   = 6,
 385       EfiMemoryInterleaveSixteenWay = 7
 386     } EFI_MEMORY_SUPPORT_INTERLEAVE_TYPE;
 387
 388     typedef struct {
 389       UINT16                            Other    :1;
 390       UINT16                            Unknown  :1;
 391       UINT16                            SeventyNs:1;
 392       UINT16                            SixtyNs  :1;
 393       UINT16                            FiftyNs  :1;
 394       UINT16                            Reserved :11;
 395     } EFI_MEMORY_SPEED_TYPE;
 396
 397     typedef struct {
 398       UINT16                            Other       :1;
 399       UINT16                            Unknown     :1;
 400       UINT16                            Standard    :1;
 401       UINT16                            FastPageMode:1;
 402       UINT16                            EDO         :1;
 403       UINT16                            Parity      :1;
 404       UINT16                            ECC         :1;
 405       UINT16                            SIMM        :1;
 406       UINT16                            DIMM        :1;
 407       UINT16                            BurstEdo    :1;
 408       UINT16                            SDRAM       :1;
 409       UINT16                            Reserved    :5;
 410     } EFI_MEMORY_SUPPORTED_TYPE;
 411
 412     typedef struct {
 413       UINT8                             Five    :1;
 414       UINT8                             Three   :1;
 415       UINT8                             Two     :1;
 416       UINT8                             Reserved:5;
 417     } EFI_MEMORY_MODULE_VOLTAGE_TYPE;
 418
 419     typedef struct {
 420       EFI_MEMORY_ERROR_DETECT_METHOD_TYPE ErrorDetectingMethod;
 421       EFI_MEMORY_ERROR_CORRECT_CAPABILITY ErrorCorrectingCapability;
 422       EFI_MEMORY_SUPPORT_INTERLEAVE_TYPE  MemorySupportedInterleave;
 423       EFI_MEMORY_SUPPORT_INTERLEAVE_TYPE  MemoryCurrentInterleave;
 424       UINT8                               MaxMemoryModuleSize;
 425       EFI_MEMORY_SPEED_TYPE               MemorySpeedType;
 426       EFI_MEMORY_SUPPORTED_TYPE           MemorySupportedType;
 427       EFI_MEMORY_MODULE_VOLTAGE_TYPE      MemoryModuleVoltage;
 428       UINT8                               NumberofMemorySlot;
 429       EFI_MEMORY_ERROR_CORRECT_CAPABILITY EnabledCorrectingCapability;
 430       UINT16                              *MemoryModuleConfigHandles;
 431     } EFI_MEMORY_CONTROLLER_INFORMATION;
 432
 433     typedef struct {
 434       EFI_MEMORY_ERROR_DETECT_METHOD_TYPE   ErrorDetectingMethod;
 435       EFI_MEMORY_ERROR_CORRECT_CAPABILITY   ErrorCorrectingCapability;
 436       EFI_MEMORY_SUPPORT_INTERLEAVE_TYPE    MemorySupportedInterleave;
 437       EFI_MEMORY_SUPPORT_INTERLEAVE_TYPE    MemoryCurrentInterleave;
 438       UINT8                                 MaxMemoryModuleSize;
 439       EFI_MEMORY_SPEED_TYPE                 MemorySpeedType;
 440       EFI_MEMORY_SUPPORTED_TYPE             MemorySupportedType;
 441       EFI_MEMORY_MODULE_VOLTAGE_TYPE        MemoryModuleVoltage;
 442       UINT8                                 NumberofMemorySlot;
 443       EFI_MEMORY_ERROR_CORRECT_CAPABILITY   EnabledCorrectingCapability;
 444       EFI_INTER_LINK_DATA                   MemoryModuleConfig[1];
 445     } EFI_MEMORY_CONTROLLER_INFORMATION_DATA;
 446
 447     The definitions above are *NOT* defined in MemSubclass specification 0.9. They are introduced to support
 448     new memory controller information (type 5) defined in SmBios 2.6 specification.
 449     Keeping this inconsistency to reflect the latest industry standard.
 450
 451   4. Guid/DataHubRecords.h
 452     #define EFI_MEMORY_32BIT_ERROR_INFORMATION_RECORD_NUMBER    0x00000009
 453
 454     typedef enum {
 455       EfiMemoryErrorOther             = 1,
 456       EfiMemoryErrorUnknown           = 2,
 457       EfiMemoryErrorOk                = 3,
 458       EfiMemoryErrorBadRead           = 4,
 459       EfiMemoryErrorParity            = 5,
 460       EfiMemoryErrorSigleBit          = 6,
 461       EfiMemoryErrorDoubleBit         = 7,
 462       EfiMemoryErrorMultiBit          = 8,
 463       EfiMemoryErrorNibble            = 9,
 464       EfiMemoryErrorChecksum          = 10,
 465       EfiMemoryErrorCrc               = 11,
 466       EfiMemoryErrorCorrectSingleBit  = 12,
 467       EfiMemoryErrorCorrected         = 13,
 468       EfiMemoryErrorUnCorrectable     = 14
 469     } EFI_MEMORY_ERROR_TYPE;
 470
 471     typedef enum {
 472       EfiMemoryGranularityOther               = 1,
 473       EfiMemoryGranularityOtherUnknown        = 2,
 474       EfiMemoryGranularityDeviceLevel         = 3,
 475       EfiMemoryGranularityMemPartitionLevel   = 4
 476     } EFI_MEMORY_ERROR_GRANULARITY_TYPE;
 477
 478     typedef enum {
 479       EfiMemoryErrorOperationOther            = 1,
 480       EfiMemoryErrorOperationUnknown          = 2,
 481       EfiMemoryErrorOperationRead             = 3,
 482       EfiMemoryErrorOperationWrite            = 4,
 483       EfiMemoryErrorOperationPartialWrite     = 5
 484     } EFI_MEMORY_ERROR_OPERATION_TYPE;
 485
 486     typedef struct {
 487       EFI_MEMORY_ERROR_TYPE               MemoryErrorType;
 488       EFI_MEMORY_ERROR_GRANULARITY_TYPE   MemoryErrorGranularity;
 489       EFI_MEMORY_ERROR_OPERATION_TYPE     MemoryErrorOperation;
 490       UINT32                              VendorSyndrome;
 491       UINT32                              MemoryArrayErrorAddress;
 492       UINT32                              DeviceErrorAddress;
 493       UINT32                              DeviceErrorResolution;
 494     } EFI_MEMORY_32BIT_ERROR_INFORMATION;
 495
 496     The definitions above are *NOT* defined in MemSubclass specification 0.9. They are introduced to support
 497     new 32-bit memory error information (type 18) defined in SmBios 2.6 specification.
 498     Keeping this inconsistency to reflect the latest industry standard.
 499
 500   5. Guid/DataHubRecords.h
 501     #define EFI_MEMORY_64BIT_ERROR_INFORMATION_RECORD_NUMBER    0x0000000A
 502
 503     typedef struct {
 504       EFI_MEMORY_ERROR_TYPE             MemoryErrorType;
 505       EFI_MEMORY_ERROR_GRANULARITY_TYPE MemoryErrorGranularity;
 506       EFI_MEMORY_ERROR_OPERATION_TYPE   MemoryErrorOperation;
 507       UINT32                            VendorSyndrome;
 508       UINT64                            MemoryArrayErrorAddress;
 509       UINT64                            DeviceErrorAddress;
 510       UINT32                            DeviceErrorResolution;
 511     } EFI_MEMORY_64BIT_ERROR_INFORMATION;
 512
 513     The definitions above are *NOT* defined in MemSubclass specification 0.9. They are introduced to support
 514     new 64-bit memory error information (type 33) defined in SmBios 2.6 specification.
 515     Keeping this inconsistency to reflect the latest industry standard.
 516
 517   6. Guid/DataHubRecords.h
 518     typedef union _EFI_MEMORY_SUBCLASS_RECORDS {
 519       EFI_MEMORY_SIZE_DATA                 SizeData;
 520       ...
 521       EFI_MEMORY_64BIT_ERROR_INFORMATION   Memory64bitErrorInfo;
 522     } EFI_MEMORY_SUBCLASS_RECORDS;
 523
 524     typedef struct {
 525       EFI_SUBCLASS_TYPE1_HEADER         Header;
 526       EFI_MEMORY_SUBCLASS_RECORDS       Record;
 527     } EFI_MEMORY_SUBCLASS_DRIVER_DATA;
 528
 529     The definitions above are *NOT* defined in MemSubclass specification 0.9. EdkII introduces them to simplify the
 530     code logic. Therefore developer doesn't need to allocate memory dynamically to construct variable length data record.
 531     Keeping this inconsistency for backward compatibility.
 532
 533 ##
 534 # Mismatch with Intel Platform Innovation Framework for MiscSubclass Specification (Version 0.90)
 535 ##
 536   1. Guid/DataHubRecords.h
 537     #pragma pack(1)
 538     typedef struct _USB_PORT_DEVICE_PATH {
 539       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 540       PCI_DEVICE_PATH                   PciBusDevicePath;
 541       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 542     } USB_PORT_DEVICE_PATH;
 543
 544     typedef struct _IDE_DEVICE_PATH {
 545       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 546       PCI_DEVICE_PATH                   PciBusDevicePath;
 547       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 548     } IDE_DEVICE_PATH;
 549
 550     typedef struct _RMC_CONN_DEVICE_PATH {
 551       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 552       PCI_DEVICE_PATH                   PciBridgeDevicePath;
 553       PCI_DEVICE_PATH                   PciBusDevicePath;
 554       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 555     } RMC_CONN_DEVICE_PATH;
 556
 557     typedef struct _RIDE_DEVICE_PATH {
 558       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 559       PCI_DEVICE_PATH                   PciBridgeDevicePath;
 560       PCI_DEVICE_PATH                   PciBusDevicePath;
 561       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 562     } RIDE_DEVICE_PATH;
 563
 564     typedef struct _GB_NIC_DEVICE_PATH {
 565       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 566       PCI_DEVICE_PATH                   PciBridgeDevicePath;
 567       PCI_DEVICE_PATH                   PciXBridgeDevicePath;
 568       PCI_DEVICE_PATH                   PciXBusDevicePath;
 569       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 570     } GB_NIC_DEVICE_PATH;
 571
 572     typedef struct _PS2_CONN_DEVICE_PATH {
 573       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 574       PCI_DEVICE_PATH                   LpcBridgeDevicePath;
 575       ACPI_HID_DEVICE_PATH              LpcBusDevicePath;
 576       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 577     } PS2_CONN_DEVICE_PATH;
 578
 579     typedef struct _SERIAL_CONN_DEVICE_PATH {
 580       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 581       PCI_DEVICE_PATH                   LpcBridgeDevicePath;
 582       ACPI_HID_DEVICE_PATH              LpcBusDevicePath;
 583       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 584     } SERIAL_CONN_DEVICE_PATH;
 585
 586     typedef struct _PARALLEL_CONN_DEVICE_PATH {
 587       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 588       PCI_DEVICE_PATH                   LpcBridgeDevicePath;
 589       ACPI_HID_DEVICE_PATH              LpcBusDevicePath;
 590       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 591     } PARALLEL_CONN_DEVICE_PATH;
 592
 593     typedef struct _FLOOPY_CONN_DEVICE_PATH {
 594       ACPI_HID_DEVICE_PATH              PciRootBridgeDevicePath;
 595       PCI_DEVICE_PATH                   LpcBridgeDevicePath;
 596       ACPI_HID_DEVICE_PATH              LpcBusDevicePath;
 597       EFI_DEVICE_PATH_PROTOCOL          EndDevicePath;
 598     } FLOOPY_CONN_DEVICE_PATH;
 599
 600     typedef union _EFI_MISC_PORT_DEVICE_PATH {
 601       USB_PORT_DEVICE_PATH              UsbDevicePath;
 602       IDE_DEVICE_PATH                   IdeDevicePath;
 603       RMC_CONN_DEVICE_PATH              RmcConnDevicePath;
 604       RIDE_DEVICE_PATH                  RideDevicePath;
 605       GB_NIC_DEVICE_PATH                GbNicDevicePath;
 606       PS2_CONN_DEVICE_PATH              Ps2ConnDevicePath;
 607       SERIAL_CONN_DEVICE_PATH           SerialConnDevicePath;
 608       PARALLEL_CONN_DEVICE_PATH         ParallelConnDevicePath;
 609       FLOOPY_CONN_DEVICE_PATH           FloppyConnDevicePath;
 610     } EFI_MISC_PORT_DEVICE_PATH;
 611     #pragma pack()
 612
 613     a. The definitions above are *NOT* defined in MiscSubclass specifications 0.9. EdkII introduces them to simplify the
 614        code logic. Therefore developer doesn't need to allocate memory dynamically to construct variable length device
 615        path for various device.
 616        Keeping this inconsistency for backward compatibility.
 617
 618     b. The definitions above are packed. This way violates the rule of alignment defined in DataHubSubclass specification.
 619        Section "Alignment" in DataHubSubclass specification say "Fields in a data hub record should be aligned at their
 620        natural boundaries". Keeping this inconsistency for backward compatibility.
 621
 622   2. Guid/DataHubRecords.h
 623     typedef struct {
 624       ...
 625       EFI_MISC_PORT_DEVICE_PATH         PortPath;
 626     } EFI_MISC_PORT_INTERNAL_CONNECTOR_DESIGNATOR_DATA;
 627
 628     The definition is *NOT* consistent with MiscSubclass specification, in which the type of last field is defined as
 629     "EFI_DEVICE_PATH_PROTOCOL". The definition in Specification may bring a little complexity on implementation. User
 630     have to allocate variable length memory to contain device path info and free them finially.
 631     EdkII introduced an union type named EFI_MISC_PORT_DEVICE_PATH to avoid the logic above.
 632
 633   3. Guid/DataHubRecords.h
 634     typedef struct {
 635       ...
 636       UINT8                                       BiosMajorRelease;
 637       UINT8                                       BiosMinorRelease;
 638       UINT8                                       BiosEmbeddedFirmwareMajorRelease;
 639       UINT8                                       BiosEmbeddedFirmwareMinorRelease;
 640     } EFI_MISC_BIOS_VENDOR_DATA;
 641
 642     The fields listed above are *NOT* defined in MiscSubclass specification 0.9. They are introduced to support
 643     new bios information (type 0) defined in SmBios 2.6 specification.
 644     Keeping this inconsistency to reflect the latest industry standard.
 645
 646   4. Guid/DataHubRecords.h
 647     typedef struct {
 648       ...
 649       STRING_REF                        SystemSKUNumber;
 650       STRING_REF                        SystemFamily;
 651     } EFI_MISC_SYSTEM_MANUFACTURER_DATA;
 652
 653     The fields listed above are *NOT* defined in MiscSubclass specification 0.9. They are introduced to support
 654     new system information (type 1) defined in SmBios 2.6 specification.
 655     Keeping this inconsistency to reflect the latest industry standard.
 656
 657   5. Guid/DataHubRecords.h
 658     typedef struct {
 659       ...
 660       EFI_INTER_LINK_DATA               ManagementDeviceThresholdLink;
 661     } EFI_MISC_MANAGEMENT_DEVICE_COMPONENT_DESCRIPTION_DATA;
 662
 663     The field listed above is *NOT* defined in MiscSubclass specification 0.9. It is introduced to support
 664     new management device component (type 35) defined in SmBios 2.6 specification.
 665     Keeping this inconsistency to reflect the latest industry standard.
 666
 667   6. Guid/DataHubRecords.h
 668     typedef struct {
 669       UINT32                            ChassisType       :16;
 670       UINT32                            ChassisLockPresent:1;
 671       UINT32                            Reserved          :15;
 672     } EFI_MISC_CHASSIS_STATUS;
 673
 674     The definition is *NOT* consistent with MiscSubclass specification 0.9, in which the first field is assigned a wrong field
 675     name "EFI_MISC_CHASSIS_TYPE". Due to EFI_MISC_CHASSIS_TYPE has been declared as a data type, it can not be used as a
 676     field name again. EdkII changes its name to "ChassisType" to pass build.
 677
 678   7. Guid/DataHubRecords.h
 679     typedef enum {
 680       ...
 681       EfiSlotTypeAgp2X                  = 0x10,
 682       ...
 683       EfiSlotTypePciExpress             = 0xA5
 684     } EFI_MISC_SLOT_TYPE;
 685
 686     a. The field name "EfiSlotTypeAgp2X" is *NOT* consistent with MiscSubclass specification 0.9, in which it is named
 687        "EfiSlotTypeApg2X".
 688        From its literal sense, this field represents a AGP type display card, so it should be named as "EfiSlotTypeAgp2X".
 689     b. The "EfiSlotTypePciExpress" field is *NOT* defined in MiscSubclass specification 0.9. It isintroduced to support
 690        new system slots (type 9) defined in SmBios 2.6 specification.
 691        Keeping this inconsistency to reflect the latest industry standard.
 692
 693   8. Guid/DataHubRecords.h
 694     typedef struct {
 695       ...
 696       EFI_MISC_ONBOARD_DEVICE_STATUS    OnBoardDeviceStatus;
 697       ...
 698     } EFI_MISC_ONBOARD_DEVICE_DATA;
 699
 700     The definition is *NOT* consistent with MiscSubclass specification 0.9, in which the field "OnBoardDeviceStatus" is
 701     named as "OnBoardDeviceType". Keeping this inconsistency for backward compatibility.
 702
 703   9. Guid/DataHubRecords.h
 704     #define EFI_MISC_PORTABLE_BATTERY_RECORD_NUMBER   0x00000010
 705
 706     The name of the definition is *NOT* consistent with MiscSubclass specification 0.9, in which it is defined as
 707     "EFI_MISC_BATTERY_LOCATION_RECORD_NUMBER". Keeping this inconsistency for backward compatibility.
 708
 709   10. Guid/DataHubRecords.h
 710     typedef enum {
 711       EfiPortableBatteryDeviceChemistryOther = 1,
 712       EfiPortableBatteryDeviceChemistryUnknown = 2,
 713       EfiPortableBatteryDeviceChemistryLeadAcid = 3,
 714       EfiPortableBatteryDeviceChemistryNickelCadmium = 4,
 715       EfiPortableBatteryDeviceChemistryNickelMetalHydride = 5,
 716       EfiPortableBatteryDeviceChemistryLithiumIon = 6,
 717       EfiPortableBatteryDeviceChemistryZincAir = 7,
 718       EfiPortableBatteryDeviceChemistryLithiumPolymer = 8
 719     } EFI_MISC_PORTABLE_BATTERY_DEVICE_CHEMISTRY;
 720
 721     The name of the definition is *NOT* consistent with MiscSubclass specification, in which it is defined as
 722     "EFI_MISC_BATTERY_DEVICE_CHEMISTRY". And all field names have a redundant "Portable" string compared with MisSubclass
 723     specification 0.9.
 724     Keeping this inconsistency for backward compatibility.
 725
 726   11. Guid/DataHubRecords.h
 727     typedef struct {
 728       STRING_REF                                 Location;
 729       STRING_REF                                 Manufacturer;
 730       STRING_REF                                 ManufactureDate;
 731       STRING_REF                                 SerialNumber;
 732       STRING_REF                                 DeviceName;
 733       EFI_MISC_PORTABLE_BATTERY_DEVICE_CHEMISTRY DeviceChemistry;
 734       UINT16                                     DesignCapacity;
 735       UINT16                                     DesignVoltage;
 736       STRING_REF                                 SBDSVersionNumber;
 737       UINT8                                      MaximumError;
 738       UINT16                                     SBDSSerialNumber;
 739       UINT16                                     SBDSManufactureDate;
 740       STRING_REF                                 SBDSDeviceChemistry;
 741       UINT8                                      DesignCapacityMultiplier;
 742       UINT32                                     OEMSpecific;
 743       UINT8                                      BatteryNumber;
 744       BOOLEAN                                    Valid;
 745     } EFI_MISC_PORTABLE_BATTERY;
 746
 747     The definition is *NOT* consistent with MiscSubclass specification 0.9, in which the structure name is defined as
 748     "EFI_MISC_BATTERY_LOCATION_DATA". Moreover, the name and the order of all fields are also different with MiscSubclass
 749     specification 0.9. Keeping this inconsistency for backward compatibility.
 750
 751   12. Guid/DataHubRecords.h
 752     typedef enum {
 753       ...
 754     } EFI_MISC_BOOT_INFORMATION_STATUS_DATA_TYPE;
 755
 756     The name of the definition is *NOT* consistent with MiscSubclass specification 0.9, in which it is defined as
 757     "EFI_MISC_BOOT_INFORMATION_STATUS_TYPE". Keeping this inconsistency for backward compatibility.
 758
 759   13. Guid/DataHubRecords.h
 760     typedef struct {
 761       EFI_MISC_BOOT_INFORMATION_STATUS_DATA_TYPE BootInformationStatus;
 762       ...
 763     } EFI_MISC_BOOT_INFORMATION_STATUS_DATA;
 764
 765     The definition is *NOT* consistent with MiscSubclass specification 0.9, in which the type of the first field is
 766     "EFI_MISC_BOOT_INFORMATION_STATUS_TYPE". Keeping this inconsistency for backward compatibility.
 767
 768   14. Guid/DataHubRecords.h
 769     typedef struct {
 770       ...
 771     } EFI_MISC_SYSTEM_POWER_SUPPLY_DATA;
 772
 773     The name of the definition is *NOT* consistent with MiscSubclass specification 0.9, in which it is defined as
 774     "EFI_MISC_POWER_SUPPLY_UNIT_GROUP_DATA". Keeping this inconsistency for backward compatibility.
 775
 776   15. Guid/DataHubRecords.h
 777     typedef struct {
 778       ...
 779     } SMBIOS_STRUCTURE_HDR;
 780
 781     The name of the definition is *NOT* consistent with MiscSubclass specification 0.9, in which the structure name
 782     is defined as "EFI_SMBIOS_STRUCTURE_HDR". Due to this structure is commonly used by vendor to construct SmBios
 783     type 0x80~0xFF table, Keeping this inconsistency for backward compatibility.
 784
 785   16. Guid/DataHubRecords.h
 786     typedef struct {
 787       SMBIOS_STRUCTURE_HDR              Header;
 788       ...
 789     } EFI_MISC_SMBIOS_STRUCT_ENCAPSULATION_DATA;
 790
 791     The definition is *NOT* consistent with MiscSubclass specification 0.9, in which the type of the first field is
 792     "EFI_SMBIOS_STRUCTURE_HDR". Keeping this inconsistency for backward compatibility.
 793
 794   17. Guid/DataHubRecords.h
 795     typedef struct {
 796       UINT16                            PowerSupplyHotReplaceable:1;
 797       UINT16                            PowerSupplyPresent       :1;
 798       UINT16                            PowerSupplyUnplugged     :1;
 799       UINT16                            InputVoltageRangeSwitch  :4;
 800       UINT16                            PowerSupplyStatus        :3;
 801       UINT16                            PowerSupplyType          :4;
 802       UINT16                            Reserved                 :2;
 803     } EFI_MISC_POWER_SUPPLY_CHARACTERISTICS;
 804
 805     all field type in the definition are *NOT* consistent with MiscSubclass specification 0.9, in which it is defined as
 806     "UINT32" and the total width of bit-fields is 32bits width.
 807     Keeping this inconsistency for backward compatibility.
 808
 809   18. Guid/DataHubRecords.h
 810     #define EFI_MISC_SYSTEM_EVENT_LOG_RECORD_NUMBER    0x00000020
 811
 812     typedef struct {
 813       UINT16                            LogAreaLength;
 814       UINT16                            LogHeaderStartOffset;
 815       UINT16                            LogDataStartOffset;
 816       UINT8                             AccessMethod;
 817       UINT8                             LogStatus;
 818       UINT32                            LogChangeToken;
 819       UINT32                            AccessMethodAddress;
 820       UINT8                             LogHeaderFormat;
 821       UINT8                             NumberOfSupportedLogType;
 822       UINT8                             LengthOfLogDescriptor;
 823     } EFI_MISC_SYSTEM_EVENT_LOG_DATA;
 824
 825     #define ACCESS_INDEXIO_1INDEX8BIT_DATA8BIT    0x00
 826     #define ACCESS_INDEXIO_2INDEX8BIT_DATA8BIT    0X01
 827     #define ACCESS_INDEXIO_1INDEX16BIT_DATA8BIT   0X02
 828     #define ACCESS_MEMORY_MAPPED                  0x03
 829     #define ACCESS_GPNV                           0x04
 830
 831     The definitions listed above are *NOT* defined in MiscSubclass specification 0.9. It is introduced to support
 832     new system event log (type 15) defined in SmBios 2.6 specification.
 833     Keeping this inconsistency to reflect the latest industry standard.
 834
 835   19. Guid/DataHubRecords.h
 836     #define EFI_MISC_MANAGEMENT_DEVICE_THRESHOLD_RECORD_NUMBER    0x00000021
 837
 838     typedef struct {
 839       UINT16                            LowerThresNonCritical;
 840       UINT16                            UpperThresNonCritical;
 841       UINT16                            LowerThresCritical;
 842       UINT16                            UpperThresCritical;
 843       UINT16                            LowerThresNonRecover;
 844       UINT16                            UpperThresNonRecover;
 845     } EFI_MISC_MANAGEMENT_DEVICE_THRESHOLD;
 846
 847     The definitions listed above are *NOT* defined in MiscSubclass specification 0.9. It is introduced to support
 848     new management device threshold data (type 36) defined in SmBios 2.6 specification.
 849     Keeping this inconsistency to reflect the latest industry standard.
 850
 851   20. Guid/DataHubRecords.h
 852     typedef union {
 853       EFI_MISC_LAST_PCI_BUS_DATA                         LastPciBus;
 854       ...
 855       EFI_MISC_MANAGEMENT_DEVICE_THRESHOLD               MiscManagementDeviceThreshold;
 856     } EFI_MISC_SUBCLASS_RECORDS;
 857
 858     typedef struct {
 859       EFI_SUBCLASS_TYPE1_HEADER         Header;
 860       EFI_MISC_SUBCLASS_RECORDS         Record;
 861     } EFI_MISC_SUBCLASS_DRIVER_DATA;
 862
 863     The definitions above are *NOT* defined in MemSubclass specification 0.9. EdkII introduces them to simplify the
 864     code logic. Therefore developer doesn't need to allocate memory dynamically to construct variable length data record.
 865     Keeping this inconsistency for backward compatibility.
 866
 867   21. Guid/DataHubRecords.h
 868     typedef struct {
 869       EFI_MISC_COOLING_DEVICE_TYPE      CoolingDeviceType;
 870       EFI_INTER_LINK_DATA               CoolingDeviceTemperatureLink;
 871       UINT8                             CoolingDeviceUnitGroup;
 872       UINT16                            CoolingDeviceNominalSpeed;
 873       UINT32                            CoolingDeviceOemDefined;
 874     } EFI_MISC_COOLING_DEVICE_TEMP_LINK_DATA;
 875
 876     The "CoolingDeviceUnitGroup" field and "CoolingDeviceNominalSpeed" field are *NOT* consistent with
 877     MiscSubclass specification 0.9. These fields are aligned with SMBIOS 2.6 specification. And user can easily
 878     assign any value to CoolingDeviceNominalSpeed.
 879
 880 ##
 881 # Mismatch with Intel Platform Innovation Framework for Status Codes Specification (Version 0.92)
 882 ##
 883   1. Include/Framework/StatusCode.h
 884     #define EFI_IOB_ATA_BUS_SMART_ENABLE               (EFI_SUBCLASS_SPECIFIC | 0x00000000)
 885     #define EFI_IOB_ATA_BUS_SMART_DISABLE              (EFI_SUBCLASS_SPECIFIC | 0x00000001)
 886     #define EFI_IOB_ATA_BUS_SMART_OVERTHRESHOLD        (EFI_SUBCLASS_SPECIFIC | 0x00000002)
 887     #define EFI_IOB_ATA_BUS_SMART_UNDERTHRESHOLD       (EFI_SUBCLASS_SPECIFIC | 0x00000003)
 888
 889     #define EFI_IOB_ATA_BUS_SMART_NOTSUPPORTED         (EFI_SUBCLASS_SPECIFIC | 0x00000000)
 890     #define EFI_IOB_ATA_BUS_SMART_DISABLED             (EFI_SUBCLASS_SPECIFIC | 0x00000001)
 891
 892     #define EFI_SW_DXE_BS_PC_BEGIN_CONNECTING_DRIVERS  (EFI_SUBCLASS_SPECIFIC | 0x00000005)
 893     #define EFI_SW_DXE_BS_PC_VERIFYING_PASSWORD        (EFI_SUBCLASS_SPECIFIC | 0x00000006)
 894
 895     #define EFI_SW_DXE_RT_PC_S0                        (EFI_SUBCLASS_SPECIFIC | 0x00000000)
 896     #define EFI_SW_DXE_RT_PC_S1                        (EFI_SUBCLASS_SPECIFIC | 0x00000001)
 897     #define EFI_SW_DXE_RT_PC_S2                        (EFI_SUBCLASS_SPECIFIC | 0x00000002)
 898     #define EFI_SW_DXE_RT_PC_S3                        (EFI_SUBCLASS_SPECIFIC | 0x00000003)
 899     #define EFI_SW_DXE_RT_PC_S4                        (EFI_SUBCLASS_SPECIFIC | 0x00000004)
 900     #define EFI_SW_DXE_RT_PC_S5                        (EFI_SUBCLASS_SPECIFIC | 0x00000005)
 901
 902     #define EFI_SW_CSM_LEGACY_ROM_INIT                 (EFI_SUBCLASS_SPECIFIC | 0x00000000)
 903
 904     The definitions above are *NOT* defined in Framework StatusCodes specification 0.92. But these subclass-specific error code
 905     operations are needed for EdkII implementation.
 906     Keeping this inconsistency for backward compatibility.
 907
 908   2. Include/Framework/StatusCode.h
 909     typedef union {
 910       CHAR8   *Ascii;
 911       CHAR16  *Unicode;
 912       ...
 913     } EFI_STATUS_CODE_STRING;
 914
 915     The definition is *NOT* consistent with Framework SatausCodes specification 0.92, in which the first field is defined as "CHAR8 Ascii[]"
 916     and the second field is defined as "CHAR16 Unicode[]". Keeping this inconsistency for backward compatibility.
 917
 918   3. Include/Framework/StatusCode.h
 919     #define EFI_SW_EC_X64_DIVIDE_ERROR      EXCEPT_X64_DIVIDE_ERROR
 920     #define EFI_SW_EC_X64_DEBUG             EXCEPT_X64_DEBUG
 921     #define EFI_SW_EC_X64_NMI               EXCEPT_X64_NMI
 922     #define EFI_SW_EC_X64_BREAKPOINT        EXCEPT_X64_BREAKPOINT
 923     #define EFI_SW_EC_X64_OVERFLOW          EXCEPT_X64_OVERFLOW
 924     #define EFI_SW_EC_X64_BOUND             EXCEPT_X64_BOUND
 925     #define EFI_SW_EC_X64_INVALID_OPCODE    EXCEPT_X64_INVALID_OPCODE
 926     #define EFI_SW_EC_X64_DOUBLE_FAULT      EXCEPT_X64_DOUBLE_FAULT
 927     #define EFI_SW_EC_X64_INVALID_TSS       EXCEPT_X64_INVALID_TSS
 928     #define EFI_SW_EC_X64_SEG_NOT_PRESENT   EXCEPT_X64_SEG_NOT_PRESENT
 929     #define EFI_SW_EC_X64_STACK_FAULT       EXCEPT_X64_STACK_FAULT
 930     #define EFI_SW_EC_X64_GP_FAULT          EXCEPT_X64_GP_FAULT
 931     #define EFI_SW_EC_X64_PAGE_FAULT        EXCEPT_X64_PAGE_FAULT
 932     #define EFI_SW_EC_X64_FP_ERROR          EXCEPT_X64_FP_ERROR
 933     #define EFI_SW_EC_X64_ALIGNMENT_CHECK   EXCEPT_X64_ALIGNMENT_CHECK
 934     #define EFI_SW_EC_X64_MACHINE_CHECK     EXCEPT_X64_MACHINE_CHECK
 935     #define EFI_SW_EC_X64_SIMD              EXCEPT_X64_SIMD
 936
 937     The definitions are *NOT* defined in Framework StatusCodes specification 0.92, in which IA32 and IPF exception subclass error code definitions
 938     are defined but omit the corresponding definitions for X64. EdkII introduce these definitions for implementation.
 939
 940 ##
 941 # Mismatch with Intel Platform Innovation Framework for EFI Boot Script Specification (Version 0.91)
 942 ##
 943   1. Include/Protocol/BootScriptSave.h
 944     #define EFI_BOOT_SCRIPT_SAVE_PROTOCOL_GUID \
 945     { \
 946       0x470e1529, 0xb79e, 0x4e32, {0xa0, 0xfe, 0x6a, 0x15, 0x6d, 0x29, 0xf9, 0xb2 } \
 947     }
 948
 949     The macro name "EFI_BOOT_SCRIPT_SAVE_PROTOCOL_GUID" is *NOT* consistent with Framework BootScript specification 0.91,
 950     in which it's defined as "EFI_BOOT_SCRIPT_SAVE_GUID". Keeping this inconsistency for backward compatibility.
 951
 952   2. Include/Protocol/BootScriptSave.h
 953     EFI_STATUS
 954     EFI_BOOTSERVICE
 955     (EFIAPI *EFI_BOOT_SCRIPT_WRITE) (
 956       IN EFI_BOOT_SCRIPT_SAVE_PROTOCOL            *This,
 957       ...
 958     );
 959
 960     The first parameter's type is *NOT* consistent with Framework BootScript specification 0.91, in which it's defined as
 961     "struct _EFI_BOOT_SCRIPT_SAVE_PROTOCOL". Keeping this inconsistency for backward compatibility.
 962
 963   3. Include/Framework/BootScript.h
 964     #define EFI_BOOT_SCRIPT_MEM_POLL_OPCODE               0x09
 965     #define EFI_BOOT_SCRIPT_INFORMATION_OPCODE            0x0A
 966     #define EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE_OPCODE      0x0B
 967     #define EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE_OPCODE 0x0C
 968     #define EFI_BOOT_SCRIPT_DISPATCH_2_OPCODE             0x0D
 969
 970     The OPCODEs above are not defined in Framework BootScript Specification 0.91, but adopted by PI 1.0 Spec. And they
 971     are needed for EdkII implementation.
 972
 973   4. Include/Framework/BootScript.h
 974     #define EFI_BOOT_SCRIPT_TABLE_OPCODE                  0xAA
 975     #define EFI_BOOT_SCRIPT_TERMINATE_OPCODE              0xFF
 976
 977     The two OPCODEs are *NOT* defined in Framework BootScript specification 0.91. EdkII introduces them to indicate the start
 978     or end of the boot script table.
 979     Keeping this inconsistency for backward compatibility.
 980
 981   5. Include/Protocol/BootScriptSave.h
 982     typedef
 983     EFI_STATUS
 984     (EFIAPI *EFI_BOOT_SCRIPT_CLOSE_TABLE) (
 985       IN  EFI_BOOT_SCRIPT_SAVE_PROTOCOL            *This,
 986       ...
 987       );
 988
 989     The first parameter's type is *NOT* consistent with BootScript specification, in which it's defined as
 990     "struct _EFI_BOOT_SCRIPT_SAVE_PROTOCOL". Keeping this inconsistency for backward compatibility.
 991
 992   6. Include/Include/BootScriptExecuter.h
 993     typedef
 994     EFI_STATUS
 995     (EFIAPI *EFI_PEI_BOOT_SCRIPT_EXECUTE)(
 996       IN     EFI_PEI_SERVICES                        **PeiServices,
 997       IN     EFI_PEI_BOOT_SCRIPT_EXECUTER_PPI        *This,
 998       ...
 999       );
1000
1001     The second parameter's type is *NOT* consistent with BootScript specification, in which it's defined as
1002     "struct _EFI_PEI_BOOT_SCRIPT_EXECUTER_PPI". Keeping this inconsistency for backward compatibility.
1003
1004 ##
1005 # Mismatch with Intel Platform Innovation Framework for EFI DXE CIS (Version 0.91)
1006 ##
1007   1. Include/Framework/DxeCis.h
1008     EFI_STATUS_CODE_ARCH_PROTOCOL is removed.
1009
1010     EdkII doesn't provide EFI_STATUS_CODE_ARCH_PROTOCOL definition due to ReportStatusCode() field has been
1011     removed from EFI Runtime Service Table of PI specification. EFI_STATUS_CODE_ARCH_PROTOCOL is *NOT* required,
1012     and is replaced with EFI_STATUS_CODE_RUNTIME_PROTOCOL.
1013
1014 ##
1015 # Mismatch with Intel Platform Innovation Framework for EFI Firmware Volume Specification (Version 0.9)
1016 ##
1017   1. Include/Framework/FirmwareVolumeImageFormat.h
1018     #define EFI_AGGREGATE_AUTH_STATUS_ALL               0x00000f
1019     #define EFI_LOCAL_AUTH_STATUS_ALL                   0x0f0000
1020
1021     The two macros are *NOT* defined in Framework FV specification 0.9. EdkII introduces them as a mask to calculate the
1022     value of authentication status.
1023
1024 ##
1025 # Mismatch with Intel Platform Innovation Framework for EFI Human Interface Infrastructure Specification (Version 0.92)
1026 ##
1027   1. Include/Protocol/FrameworkHii.h
1028     #define EFI_HII_PROTOCOL_GUID \
1029       { \
1030         0xd7ad636e, 0xb997, 0x459b, {0xbf, 0x3f, 0x88, 0x46, 0x89, 0x79, 0x80, 0xe1} \
1031       }
1032
1033     The Framework HII specification 0.92 changed part of HII interfaces but did not update the protocol GUID.
1034     This change should cause a change of GUID in both of code and HII spec. EdkII updates the GUID in code,
1035     but the Framework HII specification 0.92 is not updated. This is a known issue.
1036
1037   2. Include/Protocol/FrameworkHii.h
1038     typedef struct {
1039       ...
1040       EFI_HANDLE          COBExportHandle;
1041     } EFI_HII_HANDLE_PACK;
1042
1043     The last field "COBExportHandle" of EFI_HII_HANDLE_PACK is *NOT* defined in the Framework HII specification
1044     0.92. Keeping this inconsistency for backward compatibility.
1045
1046   3. Include/Protocol/FrameworkHii.h
1047     typedef struct {
1048       UINTN     NumberOfPackages;
1049       EFI_GUID  *GuidId;
1050     } EFI_HII_PACKAGES;
1051
1052     The definition is *NOT* consistent with Framework HII specification 0.92, in which a field "HandlePack" is defined.
1053     EdkII changes the EFI_HII_PACKAGES to contain various number of packages of different types just after the structure
1054     as inline data, which will bring the flexibility on development.
1055
1056   4. Include/Protocol/FrameworkHii.h
1057     struct _EFI_HII_PROTOCOL {
1058       ...
1059       EFI_HII_RESET_STRINGS                 ResetStrings;
1060       ...
1061     };
1062
1063     The field listed above is *NOT* defined in Framework HII specification 0.92. EdkII adds this field to provide
1064     an ability of removing any new strings that were added after the initial string export for this handle.
1065
1066   5. Include/Protocol/FrameworkHii.h
1067     typedef
1068     EFI_STATUS
1069     (EFIAPI *EFI_HII_GLYPH_TO_BLT)(
1070       ...
1071       IN     EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
1072       IN     EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
1073       ...
1074       IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer
1075       );
1076
1077     The type of the parameters listed above are *NOT* consistent with Framework HII specification 0.92, in which
1078     the type of these parameters is EFI_UGA_PIXEL. Here the definition uses the EFI_GRAPHICS_OUTPUT_BLT_PIXEL which
1079     defined in UEFI2.1 spec. Keeping this inconsistency for backward compatibility.
1080
1081   6. Include/Protocol/FrameworkHii.h
1082     typedef struct {
1083       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1084       UINT8                             Flags;
1085     } EFI_IFR_SUPPRESS;
1086
1087     typedef struct {
1088       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1089       UINT8                             Flags;
1090     } EFI_IFR_GRAY_OUT;
1091
1092     typedef struct {
1093       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1094       STRING_REF                        Popup;
1095       UINT8                             Flags;
1096     } EFI_IFR_INCONSISTENT;
1097
1098     typedef struct {
1099       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1100       UINT16                            QuestionId;
1101       UINT8                             Width;
1102       UINT16                            Value;
1103     } FRAMEWORK_EFI_IFR_EQ_ID_VAL;
1104
1105     typedef struct {
1106       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1107       UINT16                            QuestionId;
1108       UINT8                             Width;
1109       UINT16                            ListLength;
1110       UINT16                            ValueList[1];
1111     } FRAMEWORK_EFI_IFR_EQ_ID_LIST;
1112
1113     typedef struct {
1114       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1115       UINT16                            QuestionId1;
1116       UINT8                             Width;
1117       UINT16                            QuestionId2;
1118     } FRAMEWORK_EFI_IFR_EQ_ID_ID;
1119
1120     typedef struct {
1121       FRAMEWORK_EFI_IFR_OP_HEADER       Header;
1122       UINT16                            VariableId;
1123       UINT16                            Value;
1124     } EFI_IFR_EQ_VAR_VAL;
1125
1126     The defintions are not complied with Framework HII spec 0.92. Keeping the inconsistent for implementation needed.
1127
1128   7. Include/Protocol/FrameworkFormCallback.h
1129     #define RESET_REQUIRED  1
1130     #define EXIT_REQUIRED   2
1131     #define SAVE_REQUIRED   4
1132     #define NV_CHANGED      8
1133     #define NV_NOT_CHANGED  16
1134
1135     These macros are *NOT* defined in the Framework HII specification 0.92. These Flags are introduced to describe
1136     the standard behavior of the browser after the callback.
1137     Keeping this inconsistency for backward compatibility.
1138
1139   8. Include/Protocol/FrameworkFormCallback.h
1140     typedef
1141     EFI_STATUS
1142     (EFIAPI *EFI_NV_WRITE)(
1143       ...
1144       IN     UINT32                        Attributes,
1145       ...
1146       );
1147
1148     The definition is *NOT* consistent with Framework HII specification 0.92, in which the type of Attributes
1149     parameter is defined as "UINT32 *". EdkII changes the type of Attributes from UINT32 * to UINT32 because
1150     the input paramter is not necessary to use pointer date type.
1151
1152 ##
1153 # Mismatch with Intel Platform Innovation Framework for PEI CIS Specification (Version 0.91)
1154 ##
1155   1. Include/Ppi/ReadOnlyVariable.h
1156     #define EFI_VARIABLE_READ_ONLY          0x00000008
1157
1158     In Framework PeiCis specification 0.91, neither the macro or its value is defined.
1159     Keeping this inconsistency for backward compatibility.
1160
1161   2. Include/Ppi/FindFv.h
1162     typedef
1163     EFI_STATUS
1164     (EFIAPI *EFI_PEI_FIND_FV_FINDFV)(
1165       IN EFI_PEI_FIND_FV_PPI             *This,
1166       IN EFI_PEI_SERVICES                **PeiServices,
1167       IN UINT8                           *FvNumber,
1168       IN OUT EFI_FIRMWARE_VOLUME_HEADER  **FVAddress
1169       );
1170
1171     The definition is *NOT* consistent with Framework PeiCis specification 0.91. Compared with spec, the order
1172     of the first and second parameters is reversed. Keeping this inconsistency for backward compatibility.
1173
1174 ##
1175 # Mismatch with Intel Platform Innovation Framework for EFI SMM CIS (Version 0.91)
1176 ##
1177   1. Include/Guid/SmramMemoryReserve.h
1178     typedef struct {
1179       UINT32                NumberOfSmmReservedRegions;
1180       ...
1181     } EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;
1182
1183     1) The name of the definition is *NOT* consistent with Framework SmmCis specification 0.91, in which it's
1184     defined as "EFI_HOB_SMRAM_DESCRIPTOR_BLOCK" rather than "EFI_SMRAM_HOB_DESCRIPTOR_BLOCK".
1185     Keeping this inconsistency for backward compatibility.
1186
1187     2) The definition of NumberOfSmmReservedRegions is *NOT* consistent with Framework SmmCis specification 0.91,
1188     in which the type of this field is defined as UINTN. However, HOBs are supposed to be CPU neutral, so UINTN
1189     is incorrect and UINT32 should be used.
1190
1191   2. Include/Guid/SmramMemoryReserve.h
1192     typedef enum {
1193       ...
1194       IchnIoTrap3,
1195       IchnIoTrap2,
1196       IchnIoTrap1,
1197       IchnIoTrap0,
1198       IchnPciExpress,
1199       IchnMonitor,
1200       IchnSpi,
1201       IchnQRT,
1202       IchnGpioUnlock,
1203       ...
1204     } EFI_SMM_ICHN_SMI_TYPE;
1205
1206     The enumeration fields listed above are *NOT* defined in Framework SmmCis specification 0.91. EdkII introduces
1207     these fields to support new SMI types.
1208
1209   3. Include/Framework/SmmCis.h
1210     typedef union {
1211       ///
1212       /// The processor save-state information for IA-32 processors.
1213       ///
1214       EFI_SMI_CPU_SAVE_STATE     Ia32SaveState;
1215       ///
1216       /// Note: Inconsistency with the Framework SMM CIS spec - Itanium save state not included.
1217       ///
1218       /// The processor save-state information for Itanium processors.
1219       ///
1220       /// EFI_PMI_SYSTEM_CONTEXT ItaniumSaveState;
1221     } EFI_SMM_CPU_SAVE_STATE;
1222
1223 ##
1224 # Mismatch with Intel Platform Innovation Framework for EFI S3 Resume Boot Path Specification (Version 0.9)
1225 ##
1226   1. Include/Protocol/AcpiS3Save.h
1227     typedef
1228     EFI_STATUS
1229     EFI_BOOTSERVICE
1230     (EFIAPI *EFI_ACPI_GET_LEGACY_MEMORY_SIZE) (
1231       IN  EFI_ACPI_S3_SAVE_PROTOCOL *This,
1232       OUT UINTN *Size
1233       );
1234
1235     The first parameter's type is *NOT* consistent with Framework S3Resume specification, in which it's defined as
1236     "struct _EFI_ACPI_S3_SAVE_PROTOCOL". Keeping this inconsistency for backward compatibility.
1237
1238   2. Include/Protocol/AcpiS3Save.h
1239     typedef
1240     EFI_STATUS
1241     (EFIAPI *EFI_ACPI_S3_SAVE) (
1242       IN EFI_ACPI_S3_SAVE_PROTOCOL      *This,
1243       IN VOID                           *LegacyMemoryAddress
1244       );
1245
1246     The first parameter's type is *NOT* consistent with Framework S3Resume specification, in which it's defined as
1247     "struct _EFI_ACPI_S3_SAVE_PROTOCOL". Also the EFI_BOOTSERVICE modifier is removed from the function declaration.
1248
1249   3. Include/Protocol/AcpiS3Save.h
1250     typedef
1251     EFI_STATUS
1252     (EFIAPI *EFI_ACPI_GET_LEGACY_MEMORY_SIZE)(
1253       IN  EFI_ACPI_S3_SAVE_PROTOCOL     *This,
1254       OUT UINTN                         *Size
1255     );
1256
1257     The first parameter's type is *NOT* consistent with Framework S3Resume specification, in which it's defined as
1258     "struct _EFI_ACPI_S3_SAVE_PROTOCOL". Also the EFI_BOOTSERVICE modifier is removed from the function declaration.
1259
1260 ##
1261 # Mismatch with Intel Platform Innovation Framework for EFI ACPI Specification (Version 0.91)
1262 ##
1263   1. Include/Protocol/AcpiSupport.h
1264     typedef
1265     EFI_STATUS
1266     (EFIAPI *EFI_ACPI_GET_ACPI_TABLE)(
1267       ...
1268       );
1269
1270     The function modifier is *NOT* consistent with Framework Acpi specification. The EFI_BOOTSERVICE modifier
1271     is removed from the function declaration.
1272
1273   2. Include/Protocol/AcpiSupport.h
1274     typedef
1275     EFI_STATUS
1276     (EFIAPI *EFI_ACPI_SET_ACPI_TABLE)(
1277       ...
1278       );
1279
1280     The function modifier is *NOT* consistent with Framework Acpi specification. The EFI_BOOTSERVICE modifier
1281     is removed from the function declaration.
1282
1283   3. Include/Protocol/AcpiSupport.h
1284     typedef
1285     EFI_STATUS
1286     (EFIAPI *EFI_ACPI_PUBLISH_TABLES)(
1287       ...
1288       );
1289
1290     The function modifier is *NOT* consistent with Framework Acpi specification. The EFI_BOOTSERVICE modifier
1291     is removed from the function declaration.