projects / mirror_edk2.git / blame
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| 0c18794e | 1 | /** @file \r |
| 2 | This module implements TCG EFI Protocol.\r | |
| be02dcee | 3 | \r |
| 4 | Caution: This module requires additional review when modified.\r | |
| 5 | This driver will have external input - TcgDxePassThroughToTpm\r | |
| 6 | This external input must be validated carefully to avoid security issue like\r | |
| 7 | buffer overflow, integer overflow.\r | |
| 8 | \r | |
| 9 | TcgDxePassThroughToTpm() will receive untrusted input and do basic validation.\r | |
| 10 | \r | |
| e84f07b5 | 11 | Copyright (c) 2005 - 2013, Intel Corporation. All rights reserved.<BR>\r |
| 0c18794e | 12 | This program and the accompanying materials \r |
| 13 | are licensed and made available under the terms and conditions of the BSD License \r | |
| 14 | which accompanies this distribution. The full text of the license may be found at \r | |
| 15 | http://opensource.org/licenses/bsd-license.php\r | |
| 16 | \r | |
| 17 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 18 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 19 | \r | |
| 20 | **/\r | |
| 21 | \r | |
| 22 | #include <PiDxe.h>\r | |
| 23 | #include <IndustryStandard/Tpm12.h>\r | |
| 24 | #include <IndustryStandard/Acpi.h>\r | |
| 25 | #include <IndustryStandard/PeImage.h>\r | |
| 26 | #include <IndustryStandard/SmBios.h>\r | |
| c1d93242 | 27 | #include <IndustryStandard/TcpaAcpi.h>\r |
| 0c18794e | 28 | \r |
| 29 | #include <Guid/GlobalVariable.h>\r | |
| 30 | #include <Guid/SmBios.h>\r | |
| 31 | #include <Guid/HobList.h>\r | |
| 32 | #include <Guid/TcgEventHob.h>\r | |
| 33 | #include <Guid/EventGroup.h>\r | |
| 9e945f78 | 34 | #include <Guid/EventExitBootServiceFailed.h>\r |
| c1d93242 JY |
35 | #include <Guid/TpmInstance.h>\r |
| 36 | \r | |
| 0c18794e | 37 | #include <Protocol/DevicePath.h>\r |
| 38 | #include <Protocol/TcgService.h>\r | |
| 39 | #include <Protocol/AcpiTable.h>\r | |
| b25380e3 | 40 | #include <Protocol/MpService.h>\r |
| 0c18794e | 41 | \r |
| 42 | #include <Library/DebugLib.h>\r | |
| 43 | #include <Library/BaseMemoryLib.h>\r | |
| 44 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
| 45 | #include <Library/UefiDriverEntryPoint.h>\r | |
| 46 | #include <Library/HobLib.h>\r | |
| 47 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 48 | #include <Library/BaseLib.h>\r | |
| 49 | #include <Library/MemoryAllocationLib.h>\r | |
| 50 | #include <Library/PrintLib.h>\r | |
| 51 | #include <Library/TpmCommLib.h>\r | |
| 52 | #include <Library/PcdLib.h>\r | |
| 53 | #include <Library/UefiLib.h>\r | |
| 54 | \r | |
| 55 | #include "TpmComm.h"\r | |
| 56 | \r | |
| 57 | #define EFI_TCG_LOG_AREA_SIZE 0x10000\r | |
| 58 | \r | |
| 0c18794e | 59 | #define TCG_DXE_DATA_FROM_THIS(this) \\r |
| 60 | BASE_CR (this, TCG_DXE_DATA, TcgProtocol)\r | |
| 61 | \r | |
| 62 | typedef struct _TCG_DXE_DATA {\r | |
| 63 | EFI_TCG_PROTOCOL TcgProtocol;\r | |
| 64 | TCG_EFI_BOOT_SERVICE_CAPABILITY BsCap;\r | |
| 65 | EFI_TCG_CLIENT_ACPI_TABLE *TcgClientAcpiTable;\r | |
| 66 | EFI_TCG_SERVER_ACPI_TABLE *TcgServerAcpiTable;\r | |
| 67 | UINTN EventLogSize;\r | |
| 68 | UINT8 *LastEvent;\r | |
| 69 | TIS_TPM_HANDLE TpmHandle;\r | |
| 70 | } TCG_DXE_DATA;\r | |
| 71 | \r | |
| 72 | \r | |
| 73 | \r | |
| 74 | EFI_TCG_CLIENT_ACPI_TABLE mTcgClientAcpiTemplate = {\r | |
| 75 | {\r | |
| 76 | EFI_ACPI_3_0_TRUSTED_COMPUTING_PLATFORM_ALLIANCE_CAPABILITIES_TABLE_SIGNATURE,\r | |
| 77 | sizeof (mTcgClientAcpiTemplate),\r | |
| 78 | 0x02 //Revision\r | |
| 79 | //\r | |
| 80 | // Compiler initializes the remaining bytes to 0\r | |
| 81 | // These fields should be filled in in production\r | |
| 82 | //\r | |
| 83 | },\r | |
| 84 | 0, // 0 for PC Client Platform Class\r | |
| 85 | 0, // Log Area Max Length\r | |
| 86 | (EFI_PHYSICAL_ADDRESS) (SIZE_4GB - 1) // Log Area Start Address\r | |
| 87 | };\r | |
| 88 | \r | |
| 89 | //\r | |
| 90 | // The following EFI_TCG_SERVER_ACPI_TABLE default setting is just one example,\r | |
| 91 | // the TPM device connectes to LPC, and also defined the ACPI _UID as 0xFF,\r | |
| 92 | // this _UID can be changed and should match with the _UID setting of the TPM \r | |
| 93 | // ACPI device object \r | |
| 94 | //\r | |
| 95 | EFI_TCG_SERVER_ACPI_TABLE mTcgServerAcpiTemplate = {\r | |
| 96 | {\r | |
| 97 | EFI_ACPI_3_0_TRUSTED_COMPUTING_PLATFORM_ALLIANCE_CAPABILITIES_TABLE_SIGNATURE,\r | |
| 98 | sizeof (mTcgServerAcpiTemplate),\r | |
| 99 | 0x02 //Revision\r | |
| 100 | //\r | |
| 101 | // Compiler initializes the remaining bytes to 0\r | |
| 102 | // These fields should be filled in in production\r | |
| 103 | //\r | |
| 104 | },\r | |
| 105 | 1, // 1 for Server Platform Class\r | |
| 106 | 0, // Reserved\r | |
| 107 | 0, // Log Area Max Length\r | |
| 108 | (EFI_PHYSICAL_ADDRESS) (SIZE_4GB - 1), // Log Area Start Address\r | |
| 109 | 0x0100, // TCG Specification revision 1.0\r | |
| 110 | 2, // Device Flags\r | |
| 111 | 0, // Interrupt Flags\r | |
| 112 | 0, // GPE\r | |
| 113 | {0}, // Reserved 3 bytes\r | |
| 114 | 0, // Global System Interrupt\r | |
| 115 | {\r | |
| 116 | EFI_ACPI_3_0_SYSTEM_MEMORY,\r | |
| 117 | 0,\r | |
| 118 | 0,\r | |
| 119 | EFI_ACPI_3_0_BYTE,\r | |
| 120 | TPM_BASE_ADDRESS // Base Address\r | |
| 121 | },\r | |
| 122 | 0, // Reserved\r | |
| 123 | {0}, // Configuration Address\r | |
| 124 | 0xFF, // ACPI _UID value of the device, can be changed for different platforms\r | |
| 125 | 0, // ACPI _UID value of the device, can be changed for different platforms\r | |
| 126 | 0, // ACPI _UID value of the device, can be changed for different platforms\r | |
| 127 | 0 // ACPI _UID value of the device, can be changed for different platforms\r | |
| 128 | };\r | |
| 129 | \r | |
| 130 | UINTN mBootAttempts = 0;\r | |
| 131 | CHAR16 mBootVarName[] = L"BootOrder";\r | |
| 132 | \r | |
| b25380e3 | 133 | /**\r |
| 134 | Get All processors EFI_CPU_LOCATION in system. LocationBuf is allocated inside the function\r | |
| 135 | Caller is responsible to free LocationBuf.\r | |
| 136 | \r | |
| 137 | @param[out] LocationBuf Returns Processor Location Buffer.\r | |
| 138 | @param[out] Num Returns processor number.\r | |
| 139 | \r | |
| 140 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 141 | @retval EFI_UNSUPPORTED MpService protocol not found.\r | |
| 142 | \r | |
| 143 | **/\r | |
| 144 | EFI_STATUS\r | |
| 145 | GetProcessorsCpuLocation (\r | |
| 146 | OUT EFI_CPU_PHYSICAL_LOCATION **LocationBuf,\r | |
| 147 | OUT UINTN *Num\r | |
| 148 | )\r | |
| 149 | {\r | |
| 150 | EFI_STATUS Status;\r | |
| 151 | EFI_MP_SERVICES_PROTOCOL *MpProtocol;\r | |
| 152 | UINTN ProcessorNum;\r | |
| 153 | UINTN EnabledProcessorNum;\r | |
| 154 | EFI_PROCESSOR_INFORMATION ProcessorInfo;\r | |
| 155 | EFI_CPU_PHYSICAL_LOCATION *ProcessorLocBuf;\r | |
| 156 | UINTN Index;\r | |
| 157 | \r | |
| 158 | Status = gBS->LocateProtocol (&gEfiMpServiceProtocolGuid, NULL, (VOID **) &MpProtocol);\r | |
| 159 | if (EFI_ERROR (Status)) {\r | |
| 160 | //\r | |
| 161 | // MP protocol is not installed\r | |
| 162 | //\r | |
| 163 | return EFI_UNSUPPORTED;\r | |
| 164 | }\r | |
| 165 | \r | |
| 166 | Status = MpProtocol->GetNumberOfProcessors(\r | |
| 167 | MpProtocol,\r | |
| 168 | &ProcessorNum,\r | |
| 169 | &EnabledProcessorNum\r | |
| 170 | );\r | |
| 171 | if (EFI_ERROR(Status)){\r | |
| 172 | return Status;\r | |
| 173 | }\r | |
| 174 | \r | |
| 175 | Status = gBS->AllocatePool(\r | |
| 176 | EfiBootServicesData,\r | |
| 177 | sizeof(EFI_CPU_PHYSICAL_LOCATION) * ProcessorNum,\r | |
| bcb76672 | 178 | (VOID **) &ProcessorLocBuf\r |
| b25380e3 | 179 | );\r |
| 180 | if (EFI_ERROR(Status)){\r | |
| 181 | return Status;\r | |
| 182 | }\r | |
| 183 | \r | |
| 184 | //\r | |
| 185 | // Get each processor Location info\r | |
| 186 | //\r | |
| 187 | for (Index = 0; Index < ProcessorNum; Index++) {\r | |
| 188 | Status = MpProtocol->GetProcessorInfo(\r | |
| 189 | MpProtocol,\r | |
| 190 | Index,\r | |
| 191 | &ProcessorInfo\r | |
| 192 | );\r | |
| 193 | if (EFI_ERROR(Status)){\r | |
| 194 | FreePool(ProcessorLocBuf);\r | |
| 195 | return Status;\r | |
| 196 | }\r | |
| 197 | \r | |
| 198 | //\r | |
| 199 | // Get all Processor Location info & measure\r | |
| 200 | //\r | |
| 201 | CopyMem(\r | |
| 202 | &ProcessorLocBuf[Index],\r | |
| 203 | &ProcessorInfo.Location,\r | |
| 204 | sizeof(EFI_CPU_PHYSICAL_LOCATION)\r | |
| 205 | );\r | |
| 206 | }\r | |
| 207 | \r | |
| 208 | *LocationBuf = ProcessorLocBuf;\r | |
| 209 | *Num = ProcessorNum;\r | |
| 210 | \r | |
| 211 | return Status;\r | |
| 212 | }\r | |
| 213 | \r | |
| 0c18794e | 214 | /**\r |
| 215 | This service provides EFI protocol capability information, state information \r | |
| 216 | about the TPM, and Event Log state information.\r | |
| 217 | \r | |
| 218 | @param[in] This Indicates the calling context\r | |
| 219 | @param[out] ProtocolCapability The callee allocates memory for a TCG_BOOT_SERVICE_CAPABILITY \r | |
| 220 | structure and fills in the fields with the EFI protocol \r | |
| 221 | capability information and the current TPM state information.\r | |
| 222 | @param[out] TCGFeatureFlags This is a pointer to the feature flags. No feature \r | |
| 223 | flags are currently defined so this parameter \r | |
| 224 | MUST be set to 0. However, in the future, \r | |
| 225 | feature flags may be defined that, for example, \r | |
| 226 | enable hash algorithm agility.\r | |
| 227 | @param[out] EventLogLocation This is a pointer to the address of the event log in memory.\r | |
| 228 | @param[out] EventLogLastEntry If the Event Log contains more than one entry, \r | |
| 229 | this is a pointer to the address of the start of \r | |
| 230 | the last entry in the event log in memory. \r | |
| 231 | \r | |
| 232 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 233 | @retval EFI_INVALID_PARAMETER ProtocolCapability does not match TCG capability.\r | |
| 234 | \r | |
| 235 | **/\r | |
| 236 | EFI_STATUS\r | |
| 237 | EFIAPI\r | |
| 238 | TcgDxeStatusCheck (\r | |
| 239 | IN EFI_TCG_PROTOCOL *This,\r | |
| 240 | OUT TCG_EFI_BOOT_SERVICE_CAPABILITY *ProtocolCapability,\r | |
| 241 | OUT UINT32 *TCGFeatureFlags,\r | |
| 242 | OUT EFI_PHYSICAL_ADDRESS *EventLogLocation,\r | |
| 243 | OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry\r | |
| 244 | )\r | |
| 245 | {\r | |
| 246 | TCG_DXE_DATA *TcgData;\r | |
| 247 | \r | |
| 248 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r | |
| 249 | \r | |
| 250 | if (ProtocolCapability != NULL) {\r | |
| 251 | *ProtocolCapability = TcgData->BsCap;\r | |
| 252 | }\r | |
| 253 | \r | |
| 254 | if (TCGFeatureFlags != NULL) {\r | |
| 255 | *TCGFeatureFlags = 0;\r | |
| 256 | }\r | |
| 257 | \r | |
| 258 | if (EventLogLocation != NULL) {\r | |
| 259 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
| 260 | *EventLogLocation = TcgData->TcgClientAcpiTable->Lasa;\r | |
| 261 | } else {\r | |
| 262 | *EventLogLocation = TcgData->TcgServerAcpiTable->Lasa;\r | |
| 263 | }\r | |
| 264 | }\r | |
| 265 | \r | |
| 266 | if (EventLogLastEntry != NULL) {\r | |
| 267 | if (TcgData->BsCap.TPMDeactivatedFlag) {\r | |
| 268 | *EventLogLastEntry = (EFI_PHYSICAL_ADDRESS)(UINTN)0;\r | |
| 269 | } else {\r | |
| 270 | *EventLogLastEntry = (EFI_PHYSICAL_ADDRESS)(UINTN)TcgData->LastEvent;\r | |
| 271 | }\r | |
| 272 | }\r | |
| 273 | \r | |
| 274 | return EFI_SUCCESS;\r | |
| 275 | }\r | |
| 276 | \r | |
| 277 | /**\r | |
| 278 | This service abstracts the capability to do a hash operation on a data buffer.\r | |
| 279 | \r | |
| 280 | @param[in] This Indicates the calling context\r | |
| 281 | @param[in] HashData Pointer to the data buffer to be hashed\r | |
| 282 | @param[in] HashDataLen Length of the data buffer to be hashed\r | |
| 283 | @param[in] AlgorithmId Identification of the Algorithm to use for the hashing operation\r | |
| 284 | @param[in, out] HashedDataLen Resultant length of the hashed data\r | |
| 285 | @param[in, out] HashedDataResult Resultant buffer of the hashed data \r | |
| 286 | \r | |
| 287 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 288 | @retval EFI_INVALID_PARAMETER HashDataLen is NULL.\r | |
| 289 | @retval EFI_INVALID_PARAMETER HashDataLenResult is NULL.\r | |
| 290 | @retval EFI_OUT_OF_RESOURCES Cannot allocate buffer of size *HashedDataLen.\r | |
| 291 | @retval EFI_UNSUPPORTED AlgorithmId not supported.\r | |
| 292 | @retval EFI_BUFFER_TOO_SMALL *HashedDataLen < sizeof (TCG_DIGEST).\r | |
| 293 | \r | |
| 294 | **/\r | |
| 295 | EFI_STATUS\r | |
| 296 | EFIAPI\r | |
| 297 | TcgDxeHashAll (\r | |
| 298 | IN EFI_TCG_PROTOCOL *This,\r | |
| 299 | IN UINT8 *HashData,\r | |
| 300 | IN UINT64 HashDataLen,\r | |
| 301 | IN TCG_ALGORITHM_ID AlgorithmId,\r | |
| 302 | IN OUT UINT64 *HashedDataLen,\r | |
| 303 | IN OUT UINT8 **HashedDataResult\r | |
| 304 | )\r | |
| 305 | {\r | |
| 306 | if (HashedDataLen == NULL || HashedDataResult == NULL) {\r | |
| 307 | return EFI_INVALID_PARAMETER;\r | |
| 308 | }\r | |
| 309 | \r | |
| 310 | switch (AlgorithmId) {\r | |
| 311 | case TPM_ALG_SHA:\r | |
| 312 | if (*HashedDataLen == 0) {\r | |
| 313 | *HashedDataLen = sizeof (TPM_DIGEST);\r | |
| 314 | *HashedDataResult = AllocatePool ((UINTN) *HashedDataLen);\r | |
| 315 | if (*HashedDataResult == NULL) {\r | |
| 316 | return EFI_OUT_OF_RESOURCES;\r | |
| 317 | }\r | |
| 318 | }\r | |
| 319 | \r | |
| 320 | if (*HashedDataLen < sizeof (TPM_DIGEST)) {\r | |
| 321 | *HashedDataLen = sizeof (TPM_DIGEST);\r | |
| 322 | return EFI_BUFFER_TOO_SMALL;\r | |
| 323 | }\r | |
| 324 | *HashedDataLen = sizeof (TPM_DIGEST);\r | |
| 325 | \r | |
| f5af77a8 | 326 | if (*HashedDataResult == NULL) {\r |
| 327 | *HashedDataResult = AllocatePool ((UINTN) *HashedDataLen);\r | |
| 328 | } \r | |
| 329 | \r | |
| 0c18794e | 330 | return TpmCommHashAll (\r |
| 331 | HashData,\r | |
| 332 | (UINTN) HashDataLen,\r | |
| 333 | (TPM_DIGEST*)*HashedDataResult\r | |
| 334 | );\r | |
| 335 | default:\r | |
| 336 | return EFI_UNSUPPORTED;\r | |
| 337 | }\r | |
| 338 | }\r | |
| 339 | \r | |
| 340 | /**\r | |
| 341 | Add a new entry to the Event Log.\r | |
| 342 | \r | |
| 343 | @param[in] TcgData TCG_DXE_DATA structure.\r | |
| 344 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure. \r | |
| 345 | @param[in] NewEventData Pointer to the new event data. \r | |
| 346 | \r | |
| 347 | @retval EFI_SUCCESS The new event log entry was added.\r | |
| 348 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
| 349 | \r | |
| 350 | **/\r | |
| 351 | EFI_STATUS\r | |
| 352 | EFIAPI\r | |
| 353 | TcgDxeLogEventI (\r | |
| 354 | IN TCG_DXE_DATA *TcgData,\r | |
| 355 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
| 356 | IN UINT8 *NewEventData\r | |
| 357 | )\r | |
| 358 | {\r | |
| 359 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
| 360 | TcgData->LastEvent = (UINT8*)(UINTN)TcgData->TcgClientAcpiTable->Lasa;\r | |
| 361 | return TpmCommLogEvent (\r | |
| 362 | &TcgData->LastEvent,\r | |
| 363 | &TcgData->EventLogSize,\r | |
| 364 | (UINTN)TcgData->TcgClientAcpiTable->Laml,\r | |
| 365 | NewEventHdr,\r | |
| 366 | NewEventData\r | |
| 367 | );\r | |
| 368 | } else {\r | |
| 369 | TcgData->LastEvent = (UINT8*)(UINTN)TcgData->TcgServerAcpiTable->Lasa;\r | |
| 370 | return TpmCommLogEvent (\r | |
| 371 | &TcgData->LastEvent,\r | |
| 372 | &TcgData->EventLogSize,\r | |
| 373 | (UINTN)TcgData->TcgServerAcpiTable->Laml,\r | |
| 374 | NewEventHdr,\r | |
| 375 | NewEventData\r | |
| 376 | );\r | |
| 377 | }\r | |
| 378 | }\r | |
| 379 | \r | |
| 380 | /**\r | |
| 381 | This service abstracts the capability to add an entry to the Event Log.\r | |
| 382 | \r | |
| 383 | @param[in] This Indicates the calling context\r | |
| 384 | @param[in] TCGLogData Pointer to the start of the data buffer containing \r | |
| 385 | the TCG_PCR_EVENT data structure. All fields in \r | |
| 386 | this structure are properly filled by the caller.\r | |
| 387 | @param[in, out] EventNumber The event number of the event just logged\r | |
| 388 | @param[in] Flags Indicate additional flags. Only one flag has been \r | |
| 389 | defined at this time, which is 0x01 and means the \r | |
| 390 | extend operation should not be performed. All \r | |
| 391 | other bits are reserved. \r | |
| 392 | \r | |
| 393 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 394 | @retval EFI_OUT_OF_RESOURCES Insufficient memory in the event log to complete this action.\r | |
| 395 | \r | |
| 396 | **/\r | |
| 397 | EFI_STATUS\r | |
| 398 | EFIAPI\r | |
| 399 | TcgDxeLogEvent (\r | |
| 400 | IN EFI_TCG_PROTOCOL *This,\r | |
| 401 | IN TCG_PCR_EVENT *TCGLogData,\r | |
| 402 | IN OUT UINT32 *EventNumber,\r | |
| 403 | IN UINT32 Flags\r | |
| 404 | )\r | |
| 405 | {\r | |
| 406 | TCG_DXE_DATA *TcgData;\r | |
| 407 | \r | |
| 677e5c0b | 408 | if (TCGLogData == NULL){\r |
| 409 | return EFI_INVALID_PARAMETER;\r | |
| 410 | }\r | |
| 411 | \r | |
| 0c18794e | 412 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r |
| 413 | \r | |
| 414 | if (TcgData->BsCap.TPMDeactivatedFlag) {\r | |
| 415 | return EFI_DEVICE_ERROR;\r | |
| 416 | }\r | |
| 417 | return TcgDxeLogEventI (\r | |
| 418 | TcgData,\r | |
| 419 | (TCG_PCR_EVENT_HDR*)TCGLogData,\r | |
| 420 | TCGLogData->Event\r | |
| 421 | );\r | |
| 422 | }\r | |
| 423 | \r | |
| 424 | /**\r | |
| 425 | This service is a proxy for commands to the TPM.\r | |
| 426 | \r | |
| 427 | @param[in] This Indicates the calling context\r | |
| 428 | @param[in] TpmInputParameterBlockSize Size of the TPM input parameter block\r | |
| 429 | @param[in] TpmInputParameterBlock Pointer to the TPM input parameter block\r | |
| 430 | @param[in] TpmOutputParameterBlockSize Size of the TPM output parameter block\r | |
| 431 | @param[in] TpmOutputParameterBlock Pointer to the TPM output parameter block\r | |
| 432 | \r | |
| 433 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 434 | @retval EFI_INVALID_PARAMETER Invalid ordinal.\r | |
| 435 | @retval EFI_UNSUPPORTED Current Task Priority Level >= EFI_TPL_CALLBACK.\r | |
| 436 | @retval EFI_TIMEOUT The TIS timed-out.\r | |
| 437 | \r | |
| 438 | **/\r | |
| 439 | EFI_STATUS\r | |
| 440 | EFIAPI\r | |
| 441 | TcgDxePassThroughToTpm (\r | |
| 442 | IN EFI_TCG_PROTOCOL *This,\r | |
| 443 | IN UINT32 TpmInputParameterBlockSize,\r | |
| 444 | IN UINT8 *TpmInputParameterBlock,\r | |
| 445 | IN UINT32 TpmOutputParameterBlockSize,\r | |
| 446 | IN UINT8 *TpmOutputParameterBlock\r | |
| 447 | )\r | |
| 448 | {\r | |
| 449 | TCG_DXE_DATA *TcgData;\r | |
| 450 | \r | |
| be02dcee | 451 | if (TpmInputParameterBlock == NULL || \r |
| 452 | TpmOutputParameterBlock == NULL || \r | |
| 453 | TpmInputParameterBlockSize == 0 ||\r | |
| 454 | TpmOutputParameterBlockSize == 0) {\r | |
| 455 | return EFI_INVALID_PARAMETER;\r | |
| 456 | }\r | |
| 457 | \r | |
| 0c18794e | 458 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r |
| 459 | \r | |
| 460 | return TisPcExecute (\r | |
| 461 | TcgData->TpmHandle,\r | |
| 462 | "%r%/%r",\r | |
| 463 | TpmInputParameterBlock,\r | |
| 464 | (UINTN) TpmInputParameterBlockSize,\r | |
| 465 | TpmOutputParameterBlock,\r | |
| 466 | (UINTN) TpmOutputParameterBlockSize\r | |
| 467 | );\r | |
| 468 | }\r | |
| 469 | \r | |
| 470 | /**\r | |
| 471 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
| 472 | and add an entry to the Event Log.\r | |
| 473 | \r | |
| 474 | @param[in] TcgData TCG_DXE_DATA structure.\r | |
| 475 | @param[in] HashData Physical address of the start of the data buffer \r | |
| 476 | to be hashed, extended, and logged.\r | |
| 477 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData\r | |
| 478 | @param[in, out] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure. \r | |
| 479 | @param[in] NewEventData Pointer to the new event data. \r | |
| 480 | \r | |
| 481 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 482 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
| 483 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
| 484 | \r | |
| 485 | **/\r | |
| 486 | EFI_STATUS\r | |
| 487 | EFIAPI\r | |
| 488 | TcgDxeHashLogExtendEventI (\r | |
| 489 | IN TCG_DXE_DATA *TcgData,\r | |
| 490 | IN UINT8 *HashData,\r | |
| 491 | IN UINT64 HashDataLen,\r | |
| 492 | IN OUT TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
| 493 | IN UINT8 *NewEventData\r | |
| 494 | )\r | |
| 495 | {\r | |
| 496 | EFI_STATUS Status;\r | |
| 497 | \r | |
| 677e5c0b | 498 | if (HashData == NULL && HashDataLen > 0) {\r |
| 499 | return EFI_INVALID_PARAMETER;\r | |
| 500 | }\r | |
| 501 | \r | |
| 502 | if (HashDataLen > 0 || HashData != NULL) {\r | |
| 0c18794e | 503 | Status = TpmCommHashAll (\r |
| 504 | HashData,\r | |
| 505 | (UINTN) HashDataLen,\r | |
| 506 | &NewEventHdr->Digest\r | |
| 507 | );\r | |
| 508 | ASSERT_EFI_ERROR (Status);\r | |
| 509 | }\r | |
| 510 | \r | |
| 511 | Status = TpmCommExtend (\r | |
| 512 | TcgData->TpmHandle,\r | |
| 513 | &NewEventHdr->Digest,\r | |
| 514 | NewEventHdr->PCRIndex,\r | |
| 515 | NULL\r | |
| 516 | );\r | |
| 517 | if (!EFI_ERROR (Status)) {\r | |
| 518 | Status = TcgDxeLogEventI (TcgData, NewEventHdr, NewEventData);\r | |
| 519 | }\r | |
| 520 | \r | |
| 521 | return Status;\r | |
| 522 | }\r | |
| 523 | \r | |
| 524 | /**\r | |
| 525 | This service abstracts the capability to do a hash operation on a data buffer,\r | |
| 526 | extend a specific TPM PCR with the hash result, and add an entry to the Event Log\r | |
| 527 | \r | |
| 528 | @param[in] This Indicates the calling context\r | |
| 529 | @param[in] HashData Physical address of the start of the data buffer \r | |
| 530 | to be hashed, extended, and logged.\r | |
| 531 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData\r | |
| 532 | @param[in] AlgorithmId Identification of the Algorithm to use for the hashing operation\r | |
| 533 | @param[in, out] TCGLogData The physical address of the start of the data \r | |
| 534 | buffer containing the TCG_PCR_EVENT data structure.\r | |
| 535 | @param[in, out] EventNumber The event number of the event just logged.\r | |
| 536 | @param[out] EventLogLastEntry Physical address of the first byte of the entry \r | |
| 537 | just placed in the Event Log. If the Event Log was \r | |
| 538 | empty when this function was called then this physical \r | |
| 539 | address will be the same as the physical address of \r | |
| 540 | the start of the Event Log.\r | |
| 541 | \r | |
| 542 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 543 | @retval EFI_UNSUPPORTED AlgorithmId != TPM_ALG_SHA.\r | |
| 544 | @retval EFI_UNSUPPORTED Current TPL >= EFI_TPL_CALLBACK.\r | |
| 545 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
| 546 | \r | |
| 547 | **/\r | |
| 548 | EFI_STATUS\r | |
| 549 | EFIAPI\r | |
| 550 | TcgDxeHashLogExtendEvent (\r | |
| 551 | IN EFI_TCG_PROTOCOL *This,\r | |
| 552 | IN EFI_PHYSICAL_ADDRESS HashData,\r | |
| 553 | IN UINT64 HashDataLen,\r | |
| 554 | IN TPM_ALGORITHM_ID AlgorithmId,\r | |
| 555 | IN OUT TCG_PCR_EVENT *TCGLogData,\r | |
| 556 | IN OUT UINT32 *EventNumber,\r | |
| 557 | OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry\r | |
| 558 | )\r | |
| 559 | {\r | |
| 560 | TCG_DXE_DATA *TcgData;\r | |
| 15f2d739 | 561 | EFI_STATUS Status;\r |
| 0c18794e | 562 | \r |
| 677e5c0b | 563 | if (TCGLogData == NULL || EventLogLastEntry == NULL){\r |
| 564 | return EFI_INVALID_PARAMETER;\r | |
| 565 | }\r | |
| 566 | \r | |
| 0c18794e | 567 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r |
| 568 | \r | |
| 569 | if (TcgData->BsCap.TPMDeactivatedFlag) {\r | |
| 570 | return EFI_DEVICE_ERROR;\r | |
| 571 | }\r | |
| 572 | \r | |
| 573 | if (AlgorithmId != TPM_ALG_SHA) {\r | |
| 574 | return EFI_UNSUPPORTED;\r | |
| 575 | }\r | |
| 576 | \r | |
| 15f2d739 | 577 | Status = TcgDxeHashLogExtendEventI (\r |
| 578 | TcgData,\r | |
| 579 | (UINT8 *) (UINTN) HashData,\r | |
| 580 | HashDataLen,\r | |
| 581 | (TCG_PCR_EVENT_HDR*)TCGLogData,\r | |
| 582 | TCGLogData->Event\r | |
| 583 | );\r | |
| 584 | \r | |
| 585 | if (!EFI_ERROR(Status)){\r | |
| 586 | *EventLogLastEntry = (EFI_PHYSICAL_ADDRESS)(UINTN) TcgData->LastEvent;\r | |
| 587 | }\r | |
| 588 | \r | |
| 589 | return Status;\r | |
| 0c18794e | 590 | }\r |
| 591 | \r | |
| 592 | TCG_DXE_DATA mTcgDxeData = {\r | |
| 593 | {\r | |
| 594 | TcgDxeStatusCheck,\r | |
| 595 | TcgDxeHashAll,\r | |
| 596 | TcgDxeLogEvent,\r | |
| 597 | TcgDxePassThroughToTpm,\r | |
| 598 | TcgDxeHashLogExtendEvent\r | |
| 599 | },\r | |
| 600 | {\r | |
| 601 | sizeof (mTcgDxeData.BsCap),\r | |
| 602 | { 1, 2, 0, 0 },\r | |
| 603 | { 1, 2, 0, 0 },\r | |
| 604 | 1,\r | |
| 605 | TRUE,\r | |
| 606 | FALSE\r | |
| 607 | },\r | |
| 608 | &mTcgClientAcpiTemplate,\r | |
| 609 | &mTcgServerAcpiTemplate,\r | |
| 610 | 0,\r | |
| 611 | NULL,\r | |
| 612 | NULL\r | |
| 613 | };\r | |
| 614 | \r | |
| 615 | /**\r | |
| 616 | Initialize the Event Log and log events passed from the PEI phase.\r | |
| 617 | \r | |
| 618 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 619 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
| 620 | \r | |
| 621 | **/\r | |
| 622 | EFI_STATUS\r | |
| 623 | EFIAPI\r | |
| 624 | SetupEventLog (\r | |
| 625 | VOID\r | |
| 626 | )\r | |
| 627 | {\r | |
| 628 | EFI_STATUS Status;\r | |
| 629 | TCG_PCR_EVENT *TcgEvent;\r | |
| 630 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
| 631 | EFI_PHYSICAL_ADDRESS Lasa;\r | |
| 632 | \r | |
| 633 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
| 634 | Lasa = mTcgClientAcpiTemplate.Lasa;\r | |
| 635 | \r | |
| 636 | Status = gBS->AllocatePages (\r | |
| 637 | AllocateMaxAddress,\r | |
| 638 | EfiACPIMemoryNVS,\r | |
| 639 | EFI_SIZE_TO_PAGES (EFI_TCG_LOG_AREA_SIZE),\r | |
| 640 | &Lasa\r | |
| 641 | );\r | |
| 642 | if (EFI_ERROR (Status)) {\r | |
| 643 | return Status;\r | |
| 644 | }\r | |
| 645 | mTcgClientAcpiTemplate.Lasa = Lasa;\r | |
| 646 | //\r | |
| 647 | // To initialize them as 0xFF is recommended \r | |
| 648 | // because the OS can know the last entry for that.\r | |
| 649 | //\r | |
| 650 | SetMem ((VOID *)(UINTN)mTcgClientAcpiTemplate.Lasa, EFI_TCG_LOG_AREA_SIZE, 0xFF);\r | |
| 651 | mTcgClientAcpiTemplate.Laml = EFI_TCG_LOG_AREA_SIZE;\r | |
| 652 | \r | |
| 653 | } else {\r | |
| 654 | Lasa = mTcgServerAcpiTemplate.Lasa;\r | |
| 655 | \r | |
| 656 | Status = gBS->AllocatePages (\r | |
| 657 | AllocateMaxAddress,\r | |
| 658 | EfiACPIMemoryNVS,\r | |
| 659 | EFI_SIZE_TO_PAGES (EFI_TCG_LOG_AREA_SIZE),\r | |
| 660 | &Lasa\r | |
| 661 | );\r | |
| 662 | if (EFI_ERROR (Status)) {\r | |
| 663 | return Status;\r | |
| 664 | }\r | |
| 665 | mTcgServerAcpiTemplate.Lasa = Lasa;\r | |
| 666 | //\r | |
| 667 | // To initialize them as 0xFF is recommended \r | |
| 668 | // because the OS can know the last entry for that.\r | |
| 669 | //\r | |
| 670 | SetMem ((VOID *)(UINTN)mTcgServerAcpiTemplate.Lasa, EFI_TCG_LOG_AREA_SIZE, 0xFF);\r | |
| 671 | mTcgServerAcpiTemplate.Laml = EFI_TCG_LOG_AREA_SIZE;\r | |
| 672 | }\r | |
| 673 | \r | |
| 674 | GuidHob.Raw = GetHobList ();\r | |
| 675 | while (!EFI_ERROR (Status) && \r | |
| 676 | (GuidHob.Raw = GetNextGuidHob (&gTcgEventEntryHobGuid, GuidHob.Raw)) != NULL) {\r | |
| 677 | TcgEvent = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
| 678 | GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r | |
| 679 | Status = TcgDxeLogEventI (\r | |
| 680 | &mTcgDxeData,\r | |
| 681 | (TCG_PCR_EVENT_HDR*)TcgEvent,\r | |
| 682 | TcgEvent->Event\r | |
| 683 | );\r | |
| 684 | }\r | |
| 685 | \r | |
| 686 | return Status;\r | |
| 687 | }\r | |
| 688 | \r | |
| 689 | /**\r | |
| 690 | Measure and log an action string, and extend the measurement result into PCR[5].\r | |
| 691 | \r | |
| 692 | @param[in] String A specific string that indicates an Action event. \r | |
| 693 | \r | |
| 694 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 695 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 696 | \r | |
| 697 | **/\r | |
| 698 | EFI_STATUS\r | |
| 699 | EFIAPI\r | |
| 700 | TcgMeasureAction (\r | |
| 701 | IN CHAR8 *String\r | |
| 702 | )\r | |
| 703 | {\r | |
| 704 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
| 705 | \r | |
| 706 | TcgEvent.PCRIndex = 5;\r | |
| 707 | TcgEvent.EventType = EV_EFI_ACTION;\r | |
| 708 | TcgEvent.EventSize = (UINT32)AsciiStrLen (String);\r | |
| 709 | return TcgDxeHashLogExtendEventI (\r | |
| 710 | &mTcgDxeData,\r | |
| 711 | (UINT8*)String,\r | |
| 712 | TcgEvent.EventSize,\r | |
| 713 | &TcgEvent,\r | |
| 714 | (UINT8 *) String\r | |
| 715 | );\r | |
| 716 | }\r | |
| 717 | \r | |
| 718 | /**\r | |
| 719 | Measure and log EFI handoff tables, and extend the measurement result into PCR[1].\r | |
| 720 | \r | |
| 721 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 722 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 723 | \r | |
| 724 | **/\r | |
| 725 | EFI_STATUS\r | |
| 726 | EFIAPI\r | |
| 727 | MeasureHandoffTables (\r | |
| 728 | VOID\r | |
| 729 | )\r | |
| 730 | {\r | |
| 731 | EFI_STATUS Status;\r | |
| 732 | SMBIOS_TABLE_ENTRY_POINT *SmbiosTable;\r | |
| 733 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
| 734 | EFI_HANDOFF_TABLE_POINTERS HandoffTables;\r | |
| b25380e3 | 735 | UINTN ProcessorNum;\r |
| 736 | EFI_CPU_PHYSICAL_LOCATION *ProcessorLocBuf;\r | |
| 0c18794e | 737 | \r |
| b25380e3 | 738 | //\r |
| 739 | // Measure SMBIOS with EV_EFI_HANDOFF_TABLES to PCR[1]\r | |
| 740 | //\r | |
| 0c18794e | 741 | Status = EfiGetSystemConfigurationTable (\r |
| 742 | &gEfiSmbiosTableGuid,\r | |
| 743 | (VOID **) &SmbiosTable\r | |
| 744 | );\r | |
| 745 | \r | |
| 746 | if (!EFI_ERROR (Status)) {\r | |
| 747 | ASSERT (SmbiosTable != NULL);\r | |
| 748 | \r | |
| 749 | TcgEvent.PCRIndex = 1;\r | |
| 750 | TcgEvent.EventType = EV_EFI_HANDOFF_TABLES;\r | |
| 751 | TcgEvent.EventSize = sizeof (HandoffTables);\r | |
| 752 | \r | |
| 753 | HandoffTables.NumberOfTables = 1;\r | |
| 754 | HandoffTables.TableEntry[0].VendorGuid = gEfiSmbiosTableGuid;\r | |
| 755 | HandoffTables.TableEntry[0].VendorTable = SmbiosTable;\r | |
| 756 | \r | |
| 757 | DEBUG ((DEBUG_INFO, "The Smbios Table starts at: 0x%x\n", SmbiosTable->TableAddress));\r | |
| 758 | DEBUG ((DEBUG_INFO, "The Smbios Table size: 0x%x\n", SmbiosTable->TableLength));\r | |
| 759 | \r | |
| 760 | Status = TcgDxeHashLogExtendEventI (\r | |
| 761 | &mTcgDxeData,\r | |
| 762 | (UINT8*)(UINTN)SmbiosTable->TableAddress,\r | |
| 763 | SmbiosTable->TableLength,\r | |
| 764 | &TcgEvent,\r | |
| 765 | (UINT8*)&HandoffTables\r | |
| 766 | );\r | |
| 767 | }\r | |
| 768 | \r | |
| b25380e3 | 769 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_SERVER) {\r |
| 770 | //\r | |
| 771 | // Tcg Server spec. \r | |
| 772 | // Measure each processor EFI_CPU_PHYSICAL_LOCATION with EV_TABLE_OF_DEVICES to PCR[1]\r | |
| 773 | //\r | |
| 774 | Status = GetProcessorsCpuLocation(&ProcessorLocBuf, &ProcessorNum);\r | |
| 775 | \r | |
| 776 | if (!EFI_ERROR(Status)){\r | |
| 777 | TcgEvent.PCRIndex = 1;\r | |
| 778 | TcgEvent.EventType = EV_TABLE_OF_DEVICES;\r | |
| 779 | TcgEvent.EventSize = sizeof (HandoffTables);\r | |
| 780 | \r | |
| 781 | HandoffTables.NumberOfTables = 1;\r | |
| 782 | HandoffTables.TableEntry[0].VendorGuid = gEfiMpServiceProtocolGuid;\r | |
| 783 | HandoffTables.TableEntry[0].VendorTable = ProcessorLocBuf;\r | |
| 784 | \r | |
| 785 | Status = TcgDxeHashLogExtendEventI (\r | |
| 786 | &mTcgDxeData,\r | |
| 787 | (UINT8*)(UINTN)ProcessorLocBuf,\r | |
| 788 | sizeof(EFI_CPU_PHYSICAL_LOCATION) * ProcessorNum,\r | |
| 789 | &TcgEvent,\r | |
| 790 | (UINT8*)&HandoffTables\r | |
| 791 | );\r | |
| 792 | \r | |
| 793 | FreePool(ProcessorLocBuf);\r | |
| 794 | }\r | |
| 795 | }\r | |
| 796 | \r | |
| 0c18794e | 797 | return Status;\r |
| 798 | }\r | |
| 799 | \r | |
| 800 | /**\r | |
| 801 | Measure and log Separator event, and extend the measurement result into a specific PCR.\r | |
| 802 | \r | |
| 803 | @param[in] PCRIndex PCR index. \r | |
| 804 | \r | |
| 805 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 806 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 807 | \r | |
| 808 | **/\r | |
| 809 | EFI_STATUS\r | |
| 810 | EFIAPI\r | |
| 811 | MeasureSeparatorEvent (\r | |
| 812 | IN TPM_PCRINDEX PCRIndex\r | |
| 813 | )\r | |
| 814 | {\r | |
| 815 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
| 816 | UINT32 EventData;\r | |
| 817 | \r | |
| 818 | EventData = 0;\r | |
| 819 | TcgEvent.PCRIndex = PCRIndex;\r | |
| 820 | TcgEvent.EventType = EV_SEPARATOR;\r | |
| 821 | TcgEvent.EventSize = (UINT32)sizeof (EventData);\r | |
| 822 | return TcgDxeHashLogExtendEventI (\r | |
| 823 | &mTcgDxeData,\r | |
| 824 | (UINT8 *)&EventData,\r | |
| 825 | sizeof (EventData),\r | |
| 826 | &TcgEvent,\r | |
| 827 | (UINT8 *)&EventData\r | |
| 828 | );\r | |
| 829 | }\r | |
| 830 | \r | |
| 831 | /**\r | |
| 832 | Read an EFI Variable.\r | |
| 833 | \r | |
| 834 | This function allocates a buffer to return the contents of the variable. The caller is\r | |
| 835 | responsible for freeing the buffer.\r | |
| 836 | \r | |
| 837 | @param[in] VarName A Null-terminated string that is the name of the vendor's variable.\r | |
| 838 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
| 839 | @param[out] VarSize The size of the variable data. \r | |
| 840 | \r | |
| 841 | @return A pointer to the buffer to return the contents of the variable.Otherwise NULL.\r | |
| 842 | \r | |
| 843 | **/\r | |
| 844 | VOID *\r | |
| 845 | EFIAPI\r | |
| 846 | ReadVariable (\r | |
| 847 | IN CHAR16 *VarName,\r | |
| 848 | IN EFI_GUID *VendorGuid,\r | |
| 849 | OUT UINTN *VarSize\r | |
| 850 | )\r | |
| 851 | {\r | |
| 852 | EFI_STATUS Status;\r | |
| 853 | VOID *VarData;\r | |
| 854 | \r | |
| 855 | *VarSize = 0;\r | |
| 856 | Status = gRT->GetVariable (\r | |
| 857 | VarName,\r | |
| 858 | VendorGuid,\r | |
| 859 | NULL,\r | |
| 860 | VarSize,\r | |
| 861 | NULL\r | |
| 862 | );\r | |
| 863 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
| 864 | return NULL;\r | |
| 865 | }\r | |
| 866 | \r | |
| 867 | VarData = AllocatePool (*VarSize);\r | |
| 868 | if (VarData != NULL) {\r | |
| 869 | Status = gRT->GetVariable (\r | |
| 870 | VarName,\r | |
| 871 | VendorGuid,\r | |
| 872 | NULL,\r | |
| 873 | VarSize,\r | |
| 874 | VarData\r | |
| 875 | );\r | |
| 876 | if (EFI_ERROR (Status)) {\r | |
| 877 | FreePool (VarData);\r | |
| 878 | VarData = NULL;\r | |
| 879 | *VarSize = 0;\r | |
| 880 | }\r | |
| 881 | }\r | |
| 882 | return VarData;\r | |
| 883 | }\r | |
| 884 | \r | |
| 885 | /**\r | |
| 886 | Measure and log an EFI variable, and extend the measurement result into a specific PCR.\r | |
| 887 | \r | |
| 888 | @param[in] PCRIndex PCR Index. \r | |
| 889 | @param[in] EventType Event type. \r | |
| 890 | @param[in] VarName A Null-terminated string that is the name of the vendor's variable.\r | |
| 891 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
| 892 | @param[in] VarData The content of the variable data. \r | |
| 893 | @param[in] VarSize The size of the variable data. \r | |
| 894 | \r | |
| 895 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 896 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
| 897 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 898 | \r | |
| 899 | **/\r | |
| 900 | EFI_STATUS\r | |
| 901 | EFIAPI\r | |
| 902 | MeasureVariable (\r | |
| 903 | IN TPM_PCRINDEX PCRIndex,\r | |
| 904 | IN TCG_EVENTTYPE EventType,\r | |
| 905 | IN CHAR16 *VarName,\r | |
| 906 | IN EFI_GUID *VendorGuid,\r | |
| 907 | IN VOID *VarData,\r | |
| 908 | IN UINTN VarSize\r | |
| 909 | )\r | |
| 910 | {\r | |
| 911 | EFI_STATUS Status;\r | |
| 912 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
| 913 | UINTN VarNameLength;\r | |
| 914 | EFI_VARIABLE_DATA *VarLog;\r | |
| 915 | \r | |
| 916 | VarNameLength = StrLen (VarName);\r | |
| 917 | TcgEvent.PCRIndex = PCRIndex;\r | |
| 918 | TcgEvent.EventType = EventType;\r | |
| 919 | TcgEvent.EventSize = (UINT32)(sizeof (*VarLog) + VarNameLength * sizeof (*VarName) + VarSize\r | |
| 920 | - sizeof (VarLog->UnicodeName) - sizeof (VarLog->VariableData));\r | |
| 921 | \r | |
| 922 | VarLog = (EFI_VARIABLE_DATA*)AllocatePool (TcgEvent.EventSize);\r | |
| 923 | if (VarLog == NULL) {\r | |
| 924 | return EFI_OUT_OF_RESOURCES;\r | |
| 925 | }\r | |
| 926 | \r | |
| 927 | VarLog->VariableName = *VendorGuid;\r | |
| 928 | VarLog->UnicodeNameLength = VarNameLength;\r | |
| 929 | VarLog->VariableDataLength = VarSize;\r | |
| 930 | CopyMem (\r | |
| 931 | VarLog->UnicodeName,\r | |
| 932 | VarName,\r | |
| 933 | VarNameLength * sizeof (*VarName)\r | |
| 934 | );\r | |
| 935 | CopyMem (\r | |
| 936 | (CHAR16 *)VarLog->UnicodeName + VarNameLength,\r | |
| 937 | VarData,\r | |
| 938 | VarSize\r | |
| 939 | );\r | |
| 940 | \r | |
| 941 | Status = TcgDxeHashLogExtendEventI (\r | |
| 942 | &mTcgDxeData,\r | |
| 943 | (UINT8*)VarData,\r | |
| 944 | VarSize,\r | |
| 945 | &TcgEvent,\r | |
| 946 | (UINT8*)VarLog\r | |
| 947 | );\r | |
| 948 | FreePool (VarLog);\r | |
| 949 | return Status;\r | |
| 950 | }\r | |
| 951 | \r | |
| 952 | /**\r | |
| 953 | Read then Measure and log an EFI boot variable, and extend the measurement result into PCR[5].\r | |
| 954 | \r | |
| 955 | @param[in] VarName A Null-terminated string that is the name of the vendor's variable.\r | |
| 956 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
| 957 | @param[out] VarSize The size of the variable data. \r | |
| 958 | @param[out] VarData Pointer to the content of the variable. \r | |
| 959 | \r | |
| 960 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 961 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
| 962 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 963 | \r | |
| 964 | **/\r | |
| 965 | EFI_STATUS\r | |
| 966 | EFIAPI\r | |
| 967 | ReadAndMeasureBootVariable (\r | |
| 968 | IN CHAR16 *VarName,\r | |
| 969 | IN EFI_GUID *VendorGuid,\r | |
| 970 | OUT UINTN *VarSize,\r | |
| 971 | OUT VOID **VarData\r | |
| 972 | )\r | |
| 973 | {\r | |
| 974 | EFI_STATUS Status;\r | |
| 975 | \r | |
| 976 | *VarData = ReadVariable (VarName, VendorGuid, VarSize);\r | |
| 977 | if (*VarData == NULL) {\r | |
| 978 | return EFI_NOT_FOUND;\r | |
| 979 | }\r | |
| 980 | \r | |
| 981 | Status = MeasureVariable (\r | |
| 982 | 5,\r | |
| 983 | EV_EFI_VARIABLE_BOOT,\r | |
| 984 | VarName,\r | |
| 985 | VendorGuid,\r | |
| 986 | *VarData,\r | |
| 987 | *VarSize\r | |
| 988 | );\r | |
| 989 | return Status;\r | |
| 990 | }\r | |
| 991 | \r | |
| 992 | /**\r | |
| 993 | Measure and log all EFI boot variables, and extend the measurement result into a specific PCR.\r | |
| 994 | \r | |
| 995 | The EFI boot variables are BootOrder and Boot#### variables.\r | |
| 996 | \r | |
| 997 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 998 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
| 999 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 1000 | \r | |
| 1001 | **/\r | |
| 1002 | EFI_STATUS\r | |
| 1003 | EFIAPI\r | |
| 1004 | MeasureAllBootVariables (\r | |
| 1005 | VOID\r | |
| 1006 | )\r | |
| 1007 | {\r | |
| 1008 | EFI_STATUS Status;\r | |
| 1009 | UINT16 *BootOrder;\r | |
| 1010 | UINTN BootCount;\r | |
| 1011 | UINTN Index;\r | |
| 1012 | VOID *BootVarData;\r | |
| 1013 | UINTN Size;\r | |
| 1014 | \r | |
| 1015 | Status = ReadAndMeasureBootVariable (\r | |
| 1016 | mBootVarName,\r | |
| 1017 | &gEfiGlobalVariableGuid,\r | |
| 1018 | &BootCount,\r | |
| 1019 | (VOID **) &BootOrder\r | |
| 1020 | );\r | |
| 1021 | if (Status == EFI_NOT_FOUND) {\r | |
| 1022 | return EFI_SUCCESS;\r | |
| 1023 | }\r | |
| 1024 | ASSERT (BootOrder != NULL);\r | |
| 1025 | \r | |
| 1026 | if (EFI_ERROR (Status)) {\r | |
| 1027 | FreePool (BootOrder);\r | |
| 1028 | return Status;\r | |
| 1029 | }\r | |
| 1030 | \r | |
| 1031 | BootCount /= sizeof (*BootOrder);\r | |
| 1032 | for (Index = 0; Index < BootCount; Index++) {\r | |
| 1033 | UnicodeSPrint (mBootVarName, sizeof (mBootVarName), L"Boot%04x", BootOrder[Index]);\r | |
| 1034 | Status = ReadAndMeasureBootVariable (\r | |
| 1035 | mBootVarName,\r | |
| 1036 | &gEfiGlobalVariableGuid,\r | |
| 1037 | &Size,\r | |
| 1038 | &BootVarData\r | |
| 1039 | );\r | |
| 1040 | if (!EFI_ERROR (Status)) {\r | |
| 1041 | FreePool (BootVarData);\r | |
| 1042 | }\r | |
| 1043 | }\r | |
| 1044 | \r | |
| 1045 | FreePool (BootOrder);\r | |
| 1046 | return EFI_SUCCESS;\r | |
| 1047 | }\r | |
| 1048 | \r | |
| 1049 | /**\r | |
| 1050 | Ready to Boot Event notification handler.\r | |
| 1051 | \r | |
| 1052 | Sequence of OS boot events is measured in this event notification handler.\r | |
| 1053 | \r | |
| 1054 | @param[in] Event Event whose notification function is being invoked\r | |
| 1055 | @param[in] Context Pointer to the notification function's context\r | |
| 1056 | \r | |
| 1057 | **/\r | |
| 1058 | VOID\r | |
| 1059 | EFIAPI\r | |
| 1060 | OnReadyToBoot (\r | |
| 1061 | IN EFI_EVENT Event,\r | |
| 1062 | IN VOID *Context\r | |
| 1063 | )\r | |
| 1064 | {\r | |
| 1065 | EFI_STATUS Status;\r | |
| 1066 | TPM_PCRINDEX PcrIndex;\r | |
| 1067 | \r | |
| 1068 | if (mBootAttempts == 0) {\r | |
| 1069 | \r | |
| 1070 | //\r | |
| 1071 | // Measure handoff tables.\r | |
| 1072 | //\r | |
| 1073 | Status = MeasureHandoffTables ();\r | |
| 1074 | if (EFI_ERROR (Status)) {\r | |
| 1075 | DEBUG ((EFI_D_ERROR, "HOBs not Measured. Error!\n"));\r | |
| 1076 | }\r | |
| 1077 | \r | |
| 1078 | //\r | |
| 1079 | // Measure BootOrder & Boot#### variables.\r | |
| 1080 | //\r | |
| 1081 | Status = MeasureAllBootVariables ();\r | |
| 1082 | if (EFI_ERROR (Status)) {\r | |
| 1083 | DEBUG ((EFI_D_ERROR, "Boot Variables not Measured. Error!\n"));\r | |
| 1084 | }\r | |
| 1085 | \r | |
| 1086 | //\r | |
| 1087 | // 1. This is the first boot attempt.\r | |
| 1088 | //\r | |
| 1089 | Status = TcgMeasureAction (\r | |
| 1090 | EFI_CALLING_EFI_APPLICATION\r | |
| 1091 | );\r | |
| 1092 | ASSERT_EFI_ERROR (Status);\r | |
| 1093 | \r | |
| 1094 | //\r | |
| 1095 | // 2. Draw a line between pre-boot env and entering post-boot env.\r | |
| 1096 | //\r | |
| 1097 | for (PcrIndex = 0; PcrIndex < 8; PcrIndex++) {\r | |
| 1098 | Status = MeasureSeparatorEvent (PcrIndex);\r | |
| 1099 | ASSERT_EFI_ERROR (Status);\r | |
| 1100 | }\r | |
| 1101 | \r | |
| 1102 | //\r | |
| 1103 | // 3. Measure GPT. It would be done in SAP driver.\r | |
| 1104 | //\r | |
| 1105 | \r | |
| 1106 | //\r | |
| 1107 | // 4. Measure PE/COFF OS loader. It would be done in SAP driver.\r | |
| 1108 | //\r | |
| 1109 | \r | |
| 1110 | //\r | |
| 1111 | // 5. Read & Measure variable. BootOrder already measured.\r | |
| 1112 | //\r | |
| 1113 | } else {\r | |
| 1114 | //\r | |
| 1115 | // 6. Not first attempt, meaning a return from last attempt\r | |
| 1116 | //\r | |
| 1117 | Status = TcgMeasureAction (\r | |
| 1118 | EFI_RETURNING_FROM_EFI_APPLICATOIN\r | |
| 1119 | );\r | |
| 1120 | ASSERT_EFI_ERROR (Status);\r | |
| 1121 | }\r | |
| 1122 | \r | |
| 1123 | DEBUG ((EFI_D_INFO, "TPM TcgDxe Measure Data when ReadyToBoot\n"));\r | |
| 1124 | //\r | |
| 1125 | // Increase boot attempt counter.\r | |
| 1126 | //\r | |
| 1127 | mBootAttempts++;\r | |
| 1128 | }\r | |
| 1129 | \r | |
| 1130 | /**\r | |
| 1131 | Install TCG ACPI Table when ACPI Table Protocol is available.\r | |
| 1132 | \r | |
| 0f7f6d23 | 1133 | A system's firmware uses an ACPI table to identify the system's TCG capabilities \r |
| 0c18794e | 1134 | to the Post-Boot environment. The information in this ACPI table is not guaranteed \r |
| 1135 | to be valid until the Host Platform transitions from pre-boot state to post-boot state. \r | |
| 1136 | \r | |
| 1137 | @param[in] Event Event whose notification function is being invoked\r | |
| 1138 | @param[in] Context Pointer to the notification function's context\r | |
| 1139 | **/\r | |
| 1140 | VOID\r | |
| 1141 | EFIAPI\r | |
| 1142 | InstallAcpiTable (\r | |
| 1143 | IN EFI_EVENT Event,\r | |
| 1144 | IN VOID* Context\r | |
| 1145 | )\r | |
| 1146 | {\r | |
| 1147 | UINTN TableKey;\r | |
| 1148 | EFI_STATUS Status;\r | |
| 1149 | EFI_ACPI_TABLE_PROTOCOL *AcpiTable;\r | |
| 1150 | UINT8 Checksum;\r | |
| e84f07b5 | 1151 | UINT64 OemTableId;\r |
| 0c18794e | 1152 | \r |
| 1153 | Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID **)&AcpiTable);\r | |
| 1154 | if (EFI_ERROR (Status)) {\r | |
| 1155 | return;\r | |
| 1156 | }\r | |
| 1157 | \r | |
| 1158 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
| e84f07b5 SZ |
1159 | CopyMem (mTcgClientAcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTcgClientAcpiTemplate.Header.OemId));\r |
| 1160 | OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);\r | |
| 1161 | CopyMem (&mTcgClientAcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));\r | |
| 1162 | mTcgClientAcpiTemplate.Header.OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);\r | |
| 1163 | mTcgClientAcpiTemplate.Header.CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);\r | |
| 1164 | mTcgClientAcpiTemplate.Header.CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);\r | |
| 0c18794e | 1165 | //\r |
| 1166 | // The ACPI table must be checksumed before calling the InstallAcpiTable() \r | |
| 1167 | // service of the ACPI table protocol to install it.\r | |
| 1168 | //\r | |
| 1169 | Checksum = CalculateCheckSum8 ((UINT8 *)&mTcgClientAcpiTemplate, sizeof (mTcgClientAcpiTemplate));\r | |
| 1170 | mTcgClientAcpiTemplate.Header.Checksum = Checksum;\r | |
| 1171 | \r | |
| 1172 | Status = AcpiTable->InstallAcpiTable (\r | |
| 1173 | AcpiTable,\r | |
| 1174 | &mTcgClientAcpiTemplate,\r | |
| 1175 | sizeof (mTcgClientAcpiTemplate),\r | |
| 1176 | &TableKey\r | |
| 1177 | );\r | |
| 1178 | } else {\r | |
| e84f07b5 SZ |
1179 | CopyMem (mTcgServerAcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTcgServerAcpiTemplate.Header.OemId));\r |
| 1180 | OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);\r | |
| 1181 | CopyMem (&mTcgServerAcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));\r | |
| 1182 | mTcgServerAcpiTemplate.Header.OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);\r | |
| 1183 | mTcgServerAcpiTemplate.Header.CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);\r | |
| 1184 | mTcgServerAcpiTemplate.Header.CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);\r | |
| 0c18794e | 1185 | //\r |
| 1186 | // The ACPI table must be checksumed before calling the InstallAcpiTable() \r | |
| 1187 | // service of the ACPI table protocol to install it.\r | |
| 1188 | //\r | |
| 1189 | Checksum = CalculateCheckSum8 ((UINT8 *)&mTcgServerAcpiTemplate, sizeof (mTcgServerAcpiTemplate));\r | |
| 1190 | mTcgServerAcpiTemplate.Header.Checksum = Checksum;\r | |
| 1191 | \r | |
| 1192 | Status = AcpiTable->InstallAcpiTable (\r | |
| 1193 | AcpiTable,\r | |
| 1194 | &mTcgServerAcpiTemplate,\r | |
| 1195 | sizeof (mTcgServerAcpiTemplate),\r | |
| 1196 | &TableKey\r | |
| 1197 | );\r | |
| 1198 | }\r | |
| 1199 | ASSERT_EFI_ERROR (Status);\r | |
| 1200 | }\r | |
| 1201 | \r | |
| 1202 | /**\r | |
| 1203 | Exit Boot Services Event notification handler.\r | |
| 1204 | \r | |
| 1205 | Measure invocation and success of ExitBootServices.\r | |
| 1206 | \r | |
| 1207 | @param[in] Event Event whose notification function is being invoked\r | |
| 1208 | @param[in] Context Pointer to the notification function's context\r | |
| 1209 | \r | |
| 1210 | **/\r | |
| 1211 | VOID\r | |
| 1212 | EFIAPI\r | |
| 1213 | OnExitBootServices (\r | |
| 1214 | IN EFI_EVENT Event,\r | |
| 1215 | IN VOID *Context\r | |
| 1216 | )\r | |
| 1217 | {\r | |
| 1218 | EFI_STATUS Status;\r | |
| 1219 | \r | |
| 1220 | //\r | |
| 1221 | // Measure invocation of ExitBootServices,\r | |
| 1222 | //\r | |
| 1223 | Status = TcgMeasureAction (\r | |
| 1224 | EFI_EXIT_BOOT_SERVICES_INVOCATION\r | |
| 1225 | );\r | |
| 1226 | ASSERT_EFI_ERROR (Status);\r | |
| 1227 | \r | |
| 1228 | //\r | |
| 1229 | // Measure success of ExitBootServices\r | |
| 1230 | //\r | |
| 1231 | Status = TcgMeasureAction (\r | |
| 1232 | EFI_EXIT_BOOT_SERVICES_SUCCEEDED\r | |
| 1233 | );\r | |
| 1234 | ASSERT_EFI_ERROR (Status);\r | |
| 1235 | }\r | |
| 1236 | \r | |
| 9e945f78 | 1237 | /**\r |
| 1238 | Exit Boot Services Failed Event notification handler.\r | |
| 1239 | \r | |
| 1240 | Measure Failure of ExitBootServices.\r | |
| 1241 | \r | |
| 1242 | @param[in] Event Event whose notification function is being invoked\r | |
| 1243 | @param[in] Context Pointer to the notification function's context\r | |
| 1244 | \r | |
| 1245 | **/\r | |
| 1246 | VOID\r | |
| 1247 | EFIAPI\r | |
| 1248 | OnExitBootServicesFailed (\r | |
| 1249 | IN EFI_EVENT Event,\r | |
| 1250 | IN VOID *Context\r | |
| 1251 | )\r | |
| 1252 | {\r | |
| 1253 | EFI_STATUS Status;\r | |
| 1254 | \r | |
| 1255 | //\r | |
| 1256 | // Measure Failure of ExitBootServices,\r | |
| 1257 | //\r | |
| 1258 | Status = TcgMeasureAction (\r | |
| 1259 | EFI_EXIT_BOOT_SERVICES_FAILED\r | |
| 1260 | );\r | |
| 1261 | ASSERT_EFI_ERROR (Status);\r | |
| 1262 | \r | |
| 1263 | }\r | |
| 1264 | \r | |
| 0c18794e | 1265 | /**\r |
| 1266 | Get TPM Deactivated state.\r | |
| 1267 | \r | |
| 1268 | @param[out] TPMDeactivatedFlag Returns TPM Deactivated state. \r | |
| 1269 | \r | |
| 1270 | @retval EFI_SUCCESS Operation completed successfully.\r | |
| 1271 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
| 1272 | \r | |
| 1273 | **/\r | |
| 1274 | EFI_STATUS\r | |
| 1275 | GetTpmStatus (\r | |
| 1276 | OUT BOOLEAN *TPMDeactivatedFlag\r | |
| 1277 | )\r | |
| 1278 | {\r | |
| 1279 | EFI_STATUS Status;\r | |
| 1280 | TPM_STCLEAR_FLAGS VFlags;\r | |
| 1281 | \r | |
| 1282 | Status = TpmCommGetFlags (\r | |
| 1283 | mTcgDxeData.TpmHandle,\r | |
| 1284 | TPM_CAP_FLAG_VOLATILE,\r | |
| 1285 | &VFlags,\r | |
| 1286 | sizeof (VFlags)\r | |
| 1287 | );\r | |
| 1288 | if (!EFI_ERROR (Status)) {\r | |
| 1289 | *TPMDeactivatedFlag = VFlags.deactivated;\r | |
| 1290 | }\r | |
| 1291 | \r | |
| 1292 | return Status;\r | |
| 1293 | }\r | |
| 1294 | \r | |
| 1295 | /**\r | |
| 1296 | The driver's entry point.\r | |
| 1297 | \r | |
| 1298 | It publishes EFI TCG Protocol.\r | |
| 1299 | \r | |
| 1300 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
| 1301 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
| 1302 | \r | |
| 1303 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
| 1304 | @retval other Some error occurs when executing this entry point.\r | |
| 1305 | \r | |
| 1306 | **/\r | |
| 1307 | EFI_STATUS\r | |
| 1308 | EFIAPI\r | |
| 1309 | DriverEntry (\r | |
| 1310 | IN EFI_HANDLE ImageHandle,\r | |
| 1311 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
| 1312 | )\r | |
| 1313 | {\r | |
| 1314 | EFI_STATUS Status;\r | |
| 1315 | EFI_EVENT Event;\r | |
| 1316 | VOID *Registration;\r | |
| 1317 | \r | |
| c1d93242 JY |
1318 | if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)){\r |
| 1319 | DEBUG ((EFI_D_ERROR, "No TPM12 instance required!\n"));\r | |
| 1320 | return EFI_UNSUPPORTED;\r | |
| 1321 | }\r | |
| 1322 | \r | |
| 0c18794e | 1323 | mTcgDxeData.TpmHandle = (TIS_TPM_HANDLE)(UINTN)TPM_BASE_ADDRESS;\r |
| 1324 | Status = TisPcRequestUseTpm (mTcgDxeData.TpmHandle);\r | |
| 1325 | if (EFI_ERROR (Status)) {\r | |
| 1326 | DEBUG ((EFI_D_ERROR, "TPM not detected!\n"));\r | |
| 1327 | return Status;\r | |
| 1328 | }\r | |
| 1329 | \r | |
| 1330 | Status = GetTpmStatus (&mTcgDxeData.BsCap.TPMDeactivatedFlag);\r | |
| 1331 | if (EFI_ERROR (Status)) {\r | |
| 1332 | DEBUG ((\r | |
| 1333 | EFI_D_ERROR,\r | |
| 1334 | "Line %d in file " __FILE__ ":\n "\r | |
| 1335 | "DriverEntry: TPM not working properly\n",\r | |
| 1336 | __LINE__\r | |
| 1337 | ));\r | |
| 1338 | return Status;\r | |
| 1339 | }\r | |
| 1340 | \r | |
| 1341 | Status = gBS->InstallProtocolInterface (\r | |
| 1342 | &ImageHandle,\r | |
| 1343 | &gEfiTcgProtocolGuid,\r | |
| 1344 | EFI_NATIVE_INTERFACE,\r | |
| 1345 | &mTcgDxeData.TcgProtocol\r | |
| 1346 | );\r | |
| 0c18794e | 1347 | if (!EFI_ERROR (Status) && !mTcgDxeData.BsCap.TPMDeactivatedFlag) {\r |
| 1348 | //\r | |
| 1349 | // Setup the log area and copy event log from hob list to it\r | |
| 1350 | //\r | |
| 1351 | Status = SetupEventLog ();\r | |
| 1352 | ASSERT_EFI_ERROR (Status);\r | |
| 1353 | \r | |
| 1354 | //\r | |
| 1355 | // Measure handoff tables, Boot#### variables etc.\r | |
| 1356 | //\r | |
| 1357 | Status = EfiCreateEventReadyToBootEx (\r | |
| 1358 | TPL_CALLBACK,\r | |
| 1359 | OnReadyToBoot,\r | |
| 1360 | NULL,\r | |
| 1361 | &Event\r | |
| 1362 | );\r | |
| 1363 | \r | |
| 1364 | Status = gBS->CreateEventEx (\r | |
| 1365 | EVT_NOTIFY_SIGNAL,\r | |
| 1366 | TPL_NOTIFY,\r | |
| 1367 | OnExitBootServices,\r | |
| 1368 | NULL,\r | |
| 1369 | &gEfiEventExitBootServicesGuid,\r | |
| 1370 | &Event\r | |
| 1371 | );\r | |
| 9e945f78 | 1372 | \r |
| 1373 | //\r | |
| 1374 | // Measure Exit Boot Service failed \r | |
| 1375 | //\r | |
| 1376 | Status = gBS->CreateEventEx (\r | |
| 1377 | EVT_NOTIFY_SIGNAL,\r | |
| 1378 | TPL_NOTIFY,\r | |
| 1379 | OnExitBootServicesFailed,\r | |
| 1380 | NULL,\r | |
| 1381 | &gEventExitBootServicesFailedGuid,\r | |
| 1382 | &Event\r | |
| 1383 | );\r | |
| 0c18794e | 1384 | }\r |
| 1385 | \r | |
| 627c3961 | 1386 | //\r |
| 1387 | // Install ACPI Table\r | |
| 1388 | //\r | |
| 1389 | EfiCreateProtocolNotifyEvent (&gEfiAcpiTableProtocolGuid, TPL_CALLBACK, InstallAcpiTable, NULL, &Registration);\r | |
| 1390 | \r | |
| 0c18794e | 1391 | return Status;\r |
| 1392 | }\r |