Commit | Line | Data |
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b3548d32 | 1 | /** @file\r |
0c18794e | 2 | This module implements TCG EFI Protocol.\r |
b3548d32 | 3 | \r |
be02dcee | 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 | |
b3548d32 | 11 | Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>\r |
730f8071 | 12 | (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r |
289b714b | 13 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
0c18794e | 14 | \r |
15 | **/\r | |
16 | \r | |
17 | #include <PiDxe.h>\r | |
18 | #include <IndustryStandard/Tpm12.h>\r | |
19 | #include <IndustryStandard/Acpi.h>\r | |
20 | #include <IndustryStandard/PeImage.h>\r | |
c1d93242 | 21 | #include <IndustryStandard/TcpaAcpi.h>\r |
0c18794e | 22 | \r |
23 | #include <Guid/GlobalVariable.h>\r | |
0c18794e | 24 | #include <Guid/HobList.h>\r |
25 | #include <Guid/TcgEventHob.h>\r | |
26 | #include <Guid/EventGroup.h>\r | |
9e945f78 | 27 | #include <Guid/EventExitBootServiceFailed.h>\r |
c1d93242 JY |
28 | #include <Guid/TpmInstance.h>\r |
29 | \r | |
0c18794e | 30 | #include <Protocol/DevicePath.h>\r |
31 | #include <Protocol/TcgService.h>\r | |
32 | #include <Protocol/AcpiTable.h>\r | |
b25380e3 | 33 | #include <Protocol/MpService.h>\r |
0c18794e | 34 | \r |
35 | #include <Library/DebugLib.h>\r | |
36 | #include <Library/BaseMemoryLib.h>\r | |
37 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
38 | #include <Library/UefiDriverEntryPoint.h>\r | |
39 | #include <Library/HobLib.h>\r | |
40 | #include <Library/UefiBootServicesTableLib.h>\r | |
41 | #include <Library/BaseLib.h>\r | |
42 | #include <Library/MemoryAllocationLib.h>\r | |
43 | #include <Library/PrintLib.h>\r | |
7cb1b15b | 44 | #include <Library/Tpm12DeviceLib.h>\r |
0c18794e | 45 | #include <Library/PcdLib.h>\r |
46 | #include <Library/UefiLib.h>\r | |
6f785cfc | 47 | #include <Library/ReportStatusCodeLib.h>\r |
441a3678 MK |
48 | #include <Library/Tpm12CommandLib.h>\r |
49 | #include <Library/BaseCryptLib.h>\r | |
0c18794e | 50 | \r |
0c18794e | 51 | #define TCG_DXE_DATA_FROM_THIS(this) \\r |
52 | BASE_CR (this, TCG_DXE_DATA, TcgProtocol)\r | |
53 | \r | |
54 | typedef struct _TCG_DXE_DATA {\r | |
55 | EFI_TCG_PROTOCOL TcgProtocol;\r | |
56 | TCG_EFI_BOOT_SERVICE_CAPABILITY BsCap;\r | |
57 | EFI_TCG_CLIENT_ACPI_TABLE *TcgClientAcpiTable;\r | |
58 | EFI_TCG_SERVER_ACPI_TABLE *TcgServerAcpiTable;\r | |
59 | UINTN EventLogSize;\r | |
60 | UINT8 *LastEvent;\r | |
0c18794e | 61 | } TCG_DXE_DATA;\r |
62 | \r | |
63 | \r | |
64 | \r | |
65 | EFI_TCG_CLIENT_ACPI_TABLE mTcgClientAcpiTemplate = {\r | |
66 | {\r | |
67 | EFI_ACPI_3_0_TRUSTED_COMPUTING_PLATFORM_ALLIANCE_CAPABILITIES_TABLE_SIGNATURE,\r | |
68 | sizeof (mTcgClientAcpiTemplate),\r | |
69 | 0x02 //Revision\r | |
70 | //\r | |
71 | // Compiler initializes the remaining bytes to 0\r | |
72 | // These fields should be filled in in production\r | |
73 | //\r | |
74 | },\r | |
75 | 0, // 0 for PC Client Platform Class\r | |
76 | 0, // Log Area Max Length\r | |
77 | (EFI_PHYSICAL_ADDRESS) (SIZE_4GB - 1) // Log Area Start Address\r | |
78 | };\r | |
79 | \r | |
80 | //\r | |
81 | // The following EFI_TCG_SERVER_ACPI_TABLE default setting is just one example,\r | |
82 | // the TPM device connectes to LPC, and also defined the ACPI _UID as 0xFF,\r | |
b3548d32 LG |
83 | // this _UID can be changed and should match with the _UID setting of the TPM\r |
84 | // ACPI device object\r | |
0c18794e | 85 | //\r |
86 | EFI_TCG_SERVER_ACPI_TABLE mTcgServerAcpiTemplate = {\r | |
87 | {\r | |
88 | EFI_ACPI_3_0_TRUSTED_COMPUTING_PLATFORM_ALLIANCE_CAPABILITIES_TABLE_SIGNATURE,\r | |
89 | sizeof (mTcgServerAcpiTemplate),\r | |
90 | 0x02 //Revision\r | |
91 | //\r | |
92 | // Compiler initializes the remaining bytes to 0\r | |
93 | // These fields should be filled in in production\r | |
94 | //\r | |
95 | },\r | |
96 | 1, // 1 for Server Platform Class\r | |
97 | 0, // Reserved\r | |
98 | 0, // Log Area Max Length\r | |
99 | (EFI_PHYSICAL_ADDRESS) (SIZE_4GB - 1), // Log Area Start Address\r | |
730f8071 SEHM |
100 | 0x0120, // TCG Specification revision 1.2\r |
101 | 0, // Device Flags\r | |
0c18794e | 102 | 0, // Interrupt Flags\r |
103 | 0, // GPE\r | |
104 | {0}, // Reserved 3 bytes\r | |
105 | 0, // Global System Interrupt\r | |
106 | {\r | |
107 | EFI_ACPI_3_0_SYSTEM_MEMORY,\r | |
108 | 0,\r | |
109 | 0,\r | |
110 | EFI_ACPI_3_0_BYTE,\r | |
7cb1b15b | 111 | 0 // Base Address\r |
0c18794e | 112 | },\r |
113 | 0, // Reserved\r | |
114 | {0}, // Configuration Address\r | |
115 | 0xFF, // ACPI _UID value of the device, can be changed for different platforms\r | |
116 | 0, // ACPI _UID value of the device, can be changed for different platforms\r | |
117 | 0, // ACPI _UID value of the device, can be changed for different platforms\r | |
118 | 0 // ACPI _UID value of the device, can be changed for different platforms\r | |
119 | };\r | |
120 | \r | |
121 | UINTN mBootAttempts = 0;\r | |
122 | CHAR16 mBootVarName[] = L"BootOrder";\r | |
123 | \r | |
b25380e3 | 124 | /**\r |
125 | Get All processors EFI_CPU_LOCATION in system. LocationBuf is allocated inside the function\r | |
126 | Caller is responsible to free LocationBuf.\r | |
127 | \r | |
128 | @param[out] LocationBuf Returns Processor Location Buffer.\r | |
129 | @param[out] Num Returns processor number.\r | |
130 | \r | |
131 | @retval EFI_SUCCESS Operation completed successfully.\r | |
132 | @retval EFI_UNSUPPORTED MpService protocol not found.\r | |
133 | \r | |
134 | **/\r | |
135 | EFI_STATUS\r | |
136 | GetProcessorsCpuLocation (\r | |
137 | OUT EFI_CPU_PHYSICAL_LOCATION **LocationBuf,\r | |
138 | OUT UINTN *Num\r | |
139 | )\r | |
140 | {\r | |
141 | EFI_STATUS Status;\r | |
142 | EFI_MP_SERVICES_PROTOCOL *MpProtocol;\r | |
143 | UINTN ProcessorNum;\r | |
144 | UINTN EnabledProcessorNum;\r | |
145 | EFI_PROCESSOR_INFORMATION ProcessorInfo;\r | |
146 | EFI_CPU_PHYSICAL_LOCATION *ProcessorLocBuf;\r | |
147 | UINTN Index;\r | |
148 | \r | |
149 | Status = gBS->LocateProtocol (&gEfiMpServiceProtocolGuid, NULL, (VOID **) &MpProtocol);\r | |
150 | if (EFI_ERROR (Status)) {\r | |
151 | //\r | |
152 | // MP protocol is not installed\r | |
153 | //\r | |
154 | return EFI_UNSUPPORTED;\r | |
155 | }\r | |
156 | \r | |
157 | Status = MpProtocol->GetNumberOfProcessors(\r | |
158 | MpProtocol,\r | |
159 | &ProcessorNum,\r | |
160 | &EnabledProcessorNum\r | |
161 | );\r | |
162 | if (EFI_ERROR(Status)){\r | |
163 | return Status;\r | |
164 | }\r | |
165 | \r | |
166 | Status = gBS->AllocatePool(\r | |
167 | EfiBootServicesData,\r | |
168 | sizeof(EFI_CPU_PHYSICAL_LOCATION) * ProcessorNum,\r | |
bcb76672 | 169 | (VOID **) &ProcessorLocBuf\r |
b25380e3 | 170 | );\r |
171 | if (EFI_ERROR(Status)){\r | |
172 | return Status;\r | |
173 | }\r | |
174 | \r | |
175 | //\r | |
176 | // Get each processor Location info\r | |
177 | //\r | |
178 | for (Index = 0; Index < ProcessorNum; Index++) {\r | |
179 | Status = MpProtocol->GetProcessorInfo(\r | |
180 | MpProtocol,\r | |
181 | Index,\r | |
182 | &ProcessorInfo\r | |
183 | );\r | |
184 | if (EFI_ERROR(Status)){\r | |
185 | FreePool(ProcessorLocBuf);\r | |
186 | return Status;\r | |
187 | }\r | |
188 | \r | |
189 | //\r | |
190 | // Get all Processor Location info & measure\r | |
191 | //\r | |
192 | CopyMem(\r | |
193 | &ProcessorLocBuf[Index],\r | |
194 | &ProcessorInfo.Location,\r | |
195 | sizeof(EFI_CPU_PHYSICAL_LOCATION)\r | |
196 | );\r | |
197 | }\r | |
198 | \r | |
199 | *LocationBuf = ProcessorLocBuf;\r | |
200 | *Num = ProcessorNum;\r | |
201 | \r | |
202 | return Status;\r | |
203 | }\r | |
204 | \r | |
0c18794e | 205 | /**\r |
b3548d32 | 206 | This service provides EFI protocol capability information, state information\r |
0c18794e | 207 | about the TPM, and Event Log state information.\r |
208 | \r | |
209 | @param[in] This Indicates the calling context\r | |
b3548d32 LG |
210 | @param[out] ProtocolCapability The callee allocates memory for a TCG_BOOT_SERVICE_CAPABILITY\r |
211 | structure and fills in the fields with the EFI protocol\r | |
0c18794e | 212 | capability information and the current TPM state information.\r |
b3548d32 LG |
213 | @param[out] TCGFeatureFlags This is a pointer to the feature flags. No feature\r |
214 | flags are currently defined so this parameter\r | |
215 | MUST be set to 0. However, in the future,\r | |
216 | feature flags may be defined that, for example,\r | |
0c18794e | 217 | enable hash algorithm agility.\r |
218 | @param[out] EventLogLocation This is a pointer to the address of the event log in memory.\r | |
b3548d32 LG |
219 | @param[out] EventLogLastEntry If the Event Log contains more than one entry,\r |
220 | this is a pointer to the address of the start of\r | |
221 | the last entry in the event log in memory.\r | |
0c18794e | 222 | \r |
223 | @retval EFI_SUCCESS Operation completed successfully.\r | |
224 | @retval EFI_INVALID_PARAMETER ProtocolCapability does not match TCG capability.\r | |
b3548d32 | 225 | \r |
0c18794e | 226 | **/\r |
227 | EFI_STATUS\r | |
228 | EFIAPI\r | |
229 | TcgDxeStatusCheck (\r | |
230 | IN EFI_TCG_PROTOCOL *This,\r | |
231 | OUT TCG_EFI_BOOT_SERVICE_CAPABILITY *ProtocolCapability,\r | |
232 | OUT UINT32 *TCGFeatureFlags,\r | |
233 | OUT EFI_PHYSICAL_ADDRESS *EventLogLocation,\r | |
234 | OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry\r | |
235 | )\r | |
236 | {\r | |
237 | TCG_DXE_DATA *TcgData;\r | |
238 | \r | |
239 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r | |
240 | \r | |
241 | if (ProtocolCapability != NULL) {\r | |
242 | *ProtocolCapability = TcgData->BsCap;\r | |
243 | }\r | |
244 | \r | |
245 | if (TCGFeatureFlags != NULL) {\r | |
246 | *TCGFeatureFlags = 0;\r | |
247 | }\r | |
248 | \r | |
249 | if (EventLogLocation != NULL) {\r | |
250 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
251 | *EventLogLocation = TcgData->TcgClientAcpiTable->Lasa;\r | |
252 | } else {\r | |
253 | *EventLogLocation = TcgData->TcgServerAcpiTable->Lasa;\r | |
254 | }\r | |
255 | }\r | |
256 | \r | |
257 | if (EventLogLastEntry != NULL) {\r | |
5dbb6635 | 258 | if (TcgData->BsCap.TPMDeactivatedFlag || (!TcgData->BsCap.TPMPresentFlag)) {\r |
0c18794e | 259 | *EventLogLastEntry = (EFI_PHYSICAL_ADDRESS)(UINTN)0;\r |
260 | } else {\r | |
261 | *EventLogLastEntry = (EFI_PHYSICAL_ADDRESS)(UINTN)TcgData->LastEvent;\r | |
262 | }\r | |
263 | }\r | |
264 | \r | |
265 | return EFI_SUCCESS;\r | |
266 | }\r | |
267 | \r | |
441a3678 MK |
268 | /**\r |
269 | Single function calculates SHA1 digest value for all raw data. It\r | |
270 | combines Sha1Init(), Sha1Update() and Sha1Final().\r | |
271 | \r | |
272 | @param[in] Data Raw data to be digested.\r | |
273 | @param[in] DataLen Size of the raw data.\r | |
274 | @param[out] Digest Pointer to a buffer that stores the final digest.\r | |
275 | \r | |
276 | @retval EFI_SUCCESS Always successfully calculate the final digest.\r | |
277 | **/\r | |
278 | EFI_STATUS\r | |
279 | EFIAPI\r | |
280 | TpmCommHashAll (\r | |
281 | IN CONST UINT8 *Data,\r | |
282 | IN UINTN DataLen,\r | |
283 | OUT TPM_DIGEST *Digest\r | |
284 | )\r | |
285 | {\r | |
286 | VOID *Sha1Ctx;\r | |
287 | UINTN CtxSize;\r | |
288 | \r | |
289 | CtxSize = Sha1GetContextSize ();\r | |
290 | Sha1Ctx = AllocatePool (CtxSize);\r | |
291 | ASSERT (Sha1Ctx != NULL);\r | |
292 | \r | |
293 | Sha1Init (Sha1Ctx);\r | |
294 | Sha1Update (Sha1Ctx, Data, DataLen);\r | |
295 | Sha1Final (Sha1Ctx, (UINT8 *)Digest);\r | |
296 | \r | |
297 | FreePool (Sha1Ctx);\r | |
298 | \r | |
299 | return EFI_SUCCESS;\r | |
300 | }\r | |
301 | \r | |
0c18794e | 302 | /**\r |
303 | This service abstracts the capability to do a hash operation on a data buffer.\r | |
b3548d32 | 304 | \r |
0c18794e | 305 | @param[in] This Indicates the calling context\r |
306 | @param[in] HashData Pointer to the data buffer to be hashed\r | |
307 | @param[in] HashDataLen Length of the data buffer to be hashed\r | |
308 | @param[in] AlgorithmId Identification of the Algorithm to use for the hashing operation\r | |
309 | @param[in, out] HashedDataLen Resultant length of the hashed data\r | |
b3548d32 LG |
310 | @param[in, out] HashedDataResult Resultant buffer of the hashed data\r |
311 | \r | |
0c18794e | 312 | @retval EFI_SUCCESS Operation completed successfully.\r |
313 | @retval EFI_INVALID_PARAMETER HashDataLen is NULL.\r | |
314 | @retval EFI_INVALID_PARAMETER HashDataLenResult is NULL.\r | |
315 | @retval EFI_OUT_OF_RESOURCES Cannot allocate buffer of size *HashedDataLen.\r | |
316 | @retval EFI_UNSUPPORTED AlgorithmId not supported.\r | |
317 | @retval EFI_BUFFER_TOO_SMALL *HashedDataLen < sizeof (TCG_DIGEST).\r | |
b3548d32 | 318 | \r |
0c18794e | 319 | **/\r |
320 | EFI_STATUS\r | |
321 | EFIAPI\r | |
322 | TcgDxeHashAll (\r | |
323 | IN EFI_TCG_PROTOCOL *This,\r | |
324 | IN UINT8 *HashData,\r | |
325 | IN UINT64 HashDataLen,\r | |
326 | IN TCG_ALGORITHM_ID AlgorithmId,\r | |
327 | IN OUT UINT64 *HashedDataLen,\r | |
328 | IN OUT UINT8 **HashedDataResult\r | |
329 | )\r | |
330 | {\r | |
331 | if (HashedDataLen == NULL || HashedDataResult == NULL) {\r | |
332 | return EFI_INVALID_PARAMETER;\r | |
333 | }\r | |
334 | \r | |
335 | switch (AlgorithmId) {\r | |
336 | case TPM_ALG_SHA:\r | |
337 | if (*HashedDataLen == 0) {\r | |
338 | *HashedDataLen = sizeof (TPM_DIGEST);\r | |
339 | *HashedDataResult = AllocatePool ((UINTN) *HashedDataLen);\r | |
340 | if (*HashedDataResult == NULL) {\r | |
341 | return EFI_OUT_OF_RESOURCES;\r | |
342 | }\r | |
343 | }\r | |
344 | \r | |
345 | if (*HashedDataLen < sizeof (TPM_DIGEST)) {\r | |
346 | *HashedDataLen = sizeof (TPM_DIGEST);\r | |
347 | return EFI_BUFFER_TOO_SMALL;\r | |
348 | }\r | |
349 | *HashedDataLen = sizeof (TPM_DIGEST);\r | |
350 | \r | |
730f8071 SEHM |
351 | if (*HashedDataResult == NULL) {\r |
352 | *HashedDataResult = AllocatePool ((UINTN) *HashedDataLen);\r | |
b3548d32 | 353 | }\r |
f5af77a8 | 354 | \r |
0c18794e | 355 | return TpmCommHashAll (\r |
356 | HashData,\r | |
357 | (UINTN) HashDataLen,\r | |
358 | (TPM_DIGEST*)*HashedDataResult\r | |
359 | );\r | |
360 | default:\r | |
361 | return EFI_UNSUPPORTED;\r | |
362 | }\r | |
363 | }\r | |
364 | \r | |
441a3678 MK |
365 | /**\r |
366 | Add a new entry to the Event Log.\r | |
367 | \r | |
368 | @param[in, out] EventLogPtr Pointer to the Event Log data.\r | |
369 | @param[in, out] LogSize Size of the Event Log.\r | |
370 | @param[in] MaxSize Maximum size of the Event Log.\r | |
371 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.\r | |
372 | @param[in] NewEventData Pointer to the new event data.\r | |
373 | \r | |
374 | @retval EFI_SUCCESS The new event log entry was added.\r | |
375 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
376 | \r | |
377 | **/\r | |
378 | EFI_STATUS\r | |
379 | TpmCommLogEvent (\r | |
380 | IN OUT UINT8 **EventLogPtr,\r | |
381 | IN OUT UINTN *LogSize,\r | |
382 | IN UINTN MaxSize,\r | |
383 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
384 | IN UINT8 *NewEventData\r | |
385 | )\r | |
386 | {\r | |
387 | UINTN NewLogSize;\r | |
388 | \r | |
389 | //\r | |
390 | // Prevent Event Overflow\r | |
391 | //\r | |
b35ace17 | 392 | if ((UINTN) NewEventHdr->EventSize > MAX_UINTN - sizeof (*NewEventHdr)) {\r |
441a3678 MK |
393 | return EFI_OUT_OF_RESOURCES;\r |
394 | }\r | |
395 | \r | |
396 | NewLogSize = sizeof (*NewEventHdr) + NewEventHdr->EventSize;\r | |
397 | if (NewLogSize > MaxSize - *LogSize) {\r | |
398 | return EFI_OUT_OF_RESOURCES;\r | |
399 | }\r | |
400 | \r | |
401 | *EventLogPtr += *LogSize;\r | |
402 | *LogSize += NewLogSize;\r | |
403 | CopyMem (*EventLogPtr, NewEventHdr, sizeof (*NewEventHdr));\r | |
404 | CopyMem (\r | |
405 | *EventLogPtr + sizeof (*NewEventHdr),\r | |
406 | NewEventData,\r | |
407 | NewEventHdr->EventSize\r | |
408 | );\r | |
409 | return EFI_SUCCESS;\r | |
410 | }\r | |
411 | \r | |
0c18794e | 412 | /**\r |
413 | Add a new entry to the Event Log.\r | |
414 | \r | |
415 | @param[in] TcgData TCG_DXE_DATA structure.\r | |
b3548d32 LG |
416 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.\r |
417 | @param[in] NewEventData Pointer to the new event data.\r | |
418 | \r | |
0c18794e | 419 | @retval EFI_SUCCESS The new event log entry was added.\r |
420 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
421 | \r | |
422 | **/\r | |
423 | EFI_STATUS\r | |
424 | EFIAPI\r | |
425 | TcgDxeLogEventI (\r | |
426 | IN TCG_DXE_DATA *TcgData,\r | |
427 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
428 | IN UINT8 *NewEventData\r | |
429 | )\r | |
430 | {\r | |
431 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
432 | TcgData->LastEvent = (UINT8*)(UINTN)TcgData->TcgClientAcpiTable->Lasa;\r | |
433 | return TpmCommLogEvent (\r | |
434 | &TcgData->LastEvent,\r | |
435 | &TcgData->EventLogSize,\r | |
436 | (UINTN)TcgData->TcgClientAcpiTable->Laml,\r | |
437 | NewEventHdr,\r | |
438 | NewEventData\r | |
439 | );\r | |
440 | } else {\r | |
441 | TcgData->LastEvent = (UINT8*)(UINTN)TcgData->TcgServerAcpiTable->Lasa;\r | |
442 | return TpmCommLogEvent (\r | |
443 | &TcgData->LastEvent,\r | |
444 | &TcgData->EventLogSize,\r | |
445 | (UINTN)TcgData->TcgServerAcpiTable->Laml,\r | |
446 | NewEventHdr,\r | |
447 | NewEventData\r | |
448 | );\r | |
449 | }\r | |
450 | }\r | |
451 | \r | |
452 | /**\r | |
453 | This service abstracts the capability to add an entry to the Event Log.\r | |
454 | \r | |
455 | @param[in] This Indicates the calling context\r | |
b3548d32 LG |
456 | @param[in] TCGLogData Pointer to the start of the data buffer containing\r |
457 | the TCG_PCR_EVENT data structure. All fields in\r | |
0c18794e | 458 | this structure are properly filled by the caller.\r |
459 | @param[in, out] EventNumber The event number of the event just logged\r | |
b3548d32 LG |
460 | @param[in] Flags Indicate additional flags. Only one flag has been\r |
461 | defined at this time, which is 0x01 and means the\r | |
462 | extend operation should not be performed. All\r | |
463 | other bits are reserved.\r | |
464 | \r | |
0c18794e | 465 | @retval EFI_SUCCESS Operation completed successfully.\r |
466 | @retval EFI_OUT_OF_RESOURCES Insufficient memory in the event log to complete this action.\r | |
b3548d32 | 467 | \r |
0c18794e | 468 | **/\r |
469 | EFI_STATUS\r | |
470 | EFIAPI\r | |
471 | TcgDxeLogEvent (\r | |
472 | IN EFI_TCG_PROTOCOL *This,\r | |
473 | IN TCG_PCR_EVENT *TCGLogData,\r | |
474 | IN OUT UINT32 *EventNumber,\r | |
475 | IN UINT32 Flags\r | |
476 | )\r | |
477 | {\r | |
478 | TCG_DXE_DATA *TcgData;\r | |
479 | \r | |
677e5c0b | 480 | if (TCGLogData == NULL){\r |
481 | return EFI_INVALID_PARAMETER;\r | |
482 | }\r | |
483 | \r | |
0c18794e | 484 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r |
b3548d32 | 485 | \r |
5dbb6635 | 486 | if (TcgData->BsCap.TPMDeactivatedFlag || (!TcgData->BsCap.TPMPresentFlag)) {\r |
0c18794e | 487 | return EFI_DEVICE_ERROR;\r |
488 | }\r | |
489 | return TcgDxeLogEventI (\r | |
490 | TcgData,\r | |
491 | (TCG_PCR_EVENT_HDR*)TCGLogData,\r | |
492 | TCGLogData->Event\r | |
493 | );\r | |
494 | }\r | |
495 | \r | |
496 | /**\r | |
497 | This service is a proxy for commands to the TPM.\r | |
498 | \r | |
499 | @param[in] This Indicates the calling context\r | |
500 | @param[in] TpmInputParameterBlockSize Size of the TPM input parameter block\r | |
501 | @param[in] TpmInputParameterBlock Pointer to the TPM input parameter block\r | |
502 | @param[in] TpmOutputParameterBlockSize Size of the TPM output parameter block\r | |
503 | @param[in] TpmOutputParameterBlock Pointer to the TPM output parameter block\r | |
504 | \r | |
505 | @retval EFI_SUCCESS Operation completed successfully.\r | |
506 | @retval EFI_INVALID_PARAMETER Invalid ordinal.\r | |
507 | @retval EFI_UNSUPPORTED Current Task Priority Level >= EFI_TPL_CALLBACK.\r | |
508 | @retval EFI_TIMEOUT The TIS timed-out.\r | |
b3548d32 | 509 | \r |
0c18794e | 510 | **/\r |
511 | EFI_STATUS\r | |
512 | EFIAPI\r | |
513 | TcgDxePassThroughToTpm (\r | |
514 | IN EFI_TCG_PROTOCOL *This,\r | |
515 | IN UINT32 TpmInputParameterBlockSize,\r | |
516 | IN UINT8 *TpmInputParameterBlock,\r | |
517 | IN UINT32 TpmOutputParameterBlockSize,\r | |
518 | IN UINT8 *TpmOutputParameterBlock\r | |
519 | )\r | |
520 | {\r | |
b3548d32 LG |
521 | if (TpmInputParameterBlock == NULL ||\r |
522 | TpmOutputParameterBlock == NULL ||\r | |
be02dcee | 523 | TpmInputParameterBlockSize == 0 ||\r |
524 | TpmOutputParameterBlockSize == 0) {\r | |
525 | return EFI_INVALID_PARAMETER;\r | |
526 | }\r | |
527 | \r | |
441a3678 MK |
528 | return Tpm12SubmitCommand (\r |
529 | TpmInputParameterBlockSize,\r | |
0c18794e | 530 | TpmInputParameterBlock,\r |
441a3678 MK |
531 | &TpmOutputParameterBlockSize,\r |
532 | TpmOutputParameterBlock\r | |
0c18794e | 533 | );\r |
534 | }\r | |
535 | \r | |
536 | /**\r | |
537 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
538 | and add an entry to the Event Log.\r | |
539 | \r | |
540 | @param[in] TcgData TCG_DXE_DATA structure.\r | |
b3548d32 | 541 | @param[in] HashData Physical address of the start of the data buffer\r |
0c18794e | 542 | to be hashed, extended, and logged.\r |
543 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData\r | |
b3548d32 LG |
544 | @param[in, out] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.\r |
545 | @param[in] NewEventData Pointer to the new event data.\r | |
0c18794e | 546 | \r |
547 | @retval EFI_SUCCESS Operation completed successfully.\r | |
548 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
549 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
550 | \r | |
551 | **/\r | |
552 | EFI_STATUS\r | |
553 | EFIAPI\r | |
554 | TcgDxeHashLogExtendEventI (\r | |
555 | IN TCG_DXE_DATA *TcgData,\r | |
556 | IN UINT8 *HashData,\r | |
557 | IN UINT64 HashDataLen,\r | |
558 | IN OUT TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
559 | IN UINT8 *NewEventData\r | |
560 | )\r | |
561 | {\r | |
562 | EFI_STATUS Status;\r | |
563 | \r | |
6f785cfc JY |
564 | if (!TcgData->BsCap.TPMPresentFlag) {\r |
565 | return EFI_DEVICE_ERROR;\r | |
677e5c0b | 566 | }\r |
567 | \r | |
568 | if (HashDataLen > 0 || HashData != NULL) {\r | |
0c18794e | 569 | Status = TpmCommHashAll (\r |
570 | HashData,\r | |
571 | (UINTN) HashDataLen,\r | |
572 | &NewEventHdr->Digest\r | |
573 | );\r | |
f7fe68db CZ |
574 | if (EFI_ERROR(Status)) {\r |
575 | DEBUG ((DEBUG_ERROR, "TpmCommHashAll Failed. %x\n", Status));\r | |
6f785cfc | 576 | goto Done;\r |
f7fe68db | 577 | }\r |
0c18794e | 578 | }\r |
579 | \r | |
441a3678 | 580 | Status = Tpm12Extend (\r |
0c18794e | 581 | &NewEventHdr->Digest,\r |
582 | NewEventHdr->PCRIndex,\r | |
583 | NULL\r | |
584 | );\r | |
585 | if (!EFI_ERROR (Status)) {\r | |
586 | Status = TcgDxeLogEventI (TcgData, NewEventHdr, NewEventData);\r | |
587 | }\r | |
588 | \r | |
6f785cfc JY |
589 | Done:\r |
590 | if ((Status == EFI_DEVICE_ERROR) || (Status == EFI_TIMEOUT)) {\r | |
591 | DEBUG ((EFI_D_ERROR, "TcgDxeHashLogExtendEventI - %r. Disable TPM.\n", Status));\r | |
592 | TcgData->BsCap.TPMPresentFlag = FALSE;\r | |
593 | REPORT_STATUS_CODE (\r | |
594 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
595 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
596 | );\r | |
597 | Status = EFI_DEVICE_ERROR;\r | |
598 | }\r | |
599 | \r | |
0c18794e | 600 | return Status;\r |
601 | }\r | |
602 | \r | |
603 | /**\r | |
604 | This service abstracts the capability to do a hash operation on a data buffer,\r | |
605 | extend a specific TPM PCR with the hash result, and add an entry to the Event Log\r | |
606 | \r | |
607 | @param[in] This Indicates the calling context\r | |
b3548d32 | 608 | @param[in] HashData Physical address of the start of the data buffer\r |
0c18794e | 609 | to be hashed, extended, and logged.\r |
610 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData\r | |
611 | @param[in] AlgorithmId Identification of the Algorithm to use for the hashing operation\r | |
b3548d32 | 612 | @param[in, out] TCGLogData The physical address of the start of the data\r |
0c18794e | 613 | buffer containing the TCG_PCR_EVENT data structure.\r |
614 | @param[in, out] EventNumber The event number of the event just logged.\r | |
b3548d32 LG |
615 | @param[out] EventLogLastEntry Physical address of the first byte of the entry\r |
616 | just placed in the Event Log. If the Event Log was\r | |
617 | empty when this function was called then this physical\r | |
618 | address will be the same as the physical address of\r | |
0c18794e | 619 | the start of the Event Log.\r |
620 | \r | |
621 | @retval EFI_SUCCESS Operation completed successfully.\r | |
622 | @retval EFI_UNSUPPORTED AlgorithmId != TPM_ALG_SHA.\r | |
623 | @retval EFI_UNSUPPORTED Current TPL >= EFI_TPL_CALLBACK.\r | |
624 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
b3548d32 | 625 | \r |
0c18794e | 626 | **/\r |
627 | EFI_STATUS\r | |
628 | EFIAPI\r | |
629 | TcgDxeHashLogExtendEvent (\r | |
630 | IN EFI_TCG_PROTOCOL *This,\r | |
631 | IN EFI_PHYSICAL_ADDRESS HashData,\r | |
632 | IN UINT64 HashDataLen,\r | |
633 | IN TPM_ALGORITHM_ID AlgorithmId,\r | |
634 | IN OUT TCG_PCR_EVENT *TCGLogData,\r | |
635 | IN OUT UINT32 *EventNumber,\r | |
636 | OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry\r | |
637 | )\r | |
638 | {\r | |
639 | TCG_DXE_DATA *TcgData;\r | |
15f2d739 | 640 | EFI_STATUS Status;\r |
0c18794e | 641 | \r |
677e5c0b | 642 | if (TCGLogData == NULL || EventLogLastEntry == NULL){\r |
643 | return EFI_INVALID_PARAMETER;\r | |
644 | }\r | |
645 | \r | |
0c18794e | 646 | TcgData = TCG_DXE_DATA_FROM_THIS (This);\r |
b3548d32 | 647 | \r |
5dbb6635 | 648 | if (TcgData->BsCap.TPMDeactivatedFlag || (!TcgData->BsCap.TPMPresentFlag)) {\r |
0c18794e | 649 | return EFI_DEVICE_ERROR;\r |
650 | }\r | |
b3548d32 | 651 | \r |
0c18794e | 652 | if (AlgorithmId != TPM_ALG_SHA) {\r |
653 | return EFI_UNSUPPORTED;\r | |
654 | }\r | |
b3548d32 | 655 | \r |
5dbb6635 | 656 | if (HashData == 0 && HashDataLen > 0) {\r |
6f785cfc JY |
657 | return EFI_INVALID_PARAMETER;\r |
658 | }\r | |
0c18794e | 659 | \r |
15f2d739 | 660 | Status = TcgDxeHashLogExtendEventI (\r |
661 | TcgData,\r | |
662 | (UINT8 *) (UINTN) HashData,\r | |
663 | HashDataLen,\r | |
664 | (TCG_PCR_EVENT_HDR*)TCGLogData,\r | |
665 | TCGLogData->Event\r | |
666 | );\r | |
667 | \r | |
668 | if (!EFI_ERROR(Status)){\r | |
669 | *EventLogLastEntry = (EFI_PHYSICAL_ADDRESS)(UINTN) TcgData->LastEvent;\r | |
670 | }\r | |
671 | \r | |
672 | return Status;\r | |
0c18794e | 673 | }\r |
674 | \r | |
675 | TCG_DXE_DATA mTcgDxeData = {\r | |
676 | {\r | |
677 | TcgDxeStatusCheck,\r | |
678 | TcgDxeHashAll,\r | |
679 | TcgDxeLogEvent,\r | |
680 | TcgDxePassThroughToTpm,\r | |
681 | TcgDxeHashLogExtendEvent\r | |
682 | },\r | |
683 | {\r | |
684 | sizeof (mTcgDxeData.BsCap),\r | |
685 | { 1, 2, 0, 0 },\r | |
686 | { 1, 2, 0, 0 },\r | |
687 | 1,\r | |
688 | TRUE,\r | |
689 | FALSE\r | |
690 | },\r | |
691 | &mTcgClientAcpiTemplate,\r | |
692 | &mTcgServerAcpiTemplate,\r | |
693 | 0,\r | |
0c18794e | 694 | NULL\r |
695 | };\r | |
696 | \r | |
697 | /**\r | |
698 | Initialize the Event Log and log events passed from the PEI phase.\r | |
699 | \r | |
700 | @retval EFI_SUCCESS Operation completed successfully.\r | |
701 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
702 | \r | |
703 | **/\r | |
704 | EFI_STATUS\r | |
705 | EFIAPI\r | |
706 | SetupEventLog (\r | |
707 | VOID\r | |
708 | )\r | |
709 | {\r | |
710 | EFI_STATUS Status;\r | |
711 | TCG_PCR_EVENT *TcgEvent;\r | |
712 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
713 | EFI_PHYSICAL_ADDRESS Lasa;\r | |
b3548d32 | 714 | \r |
0c18794e | 715 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r |
716 | Lasa = mTcgClientAcpiTemplate.Lasa;\r | |
b3548d32 | 717 | \r |
0c18794e | 718 | Status = gBS->AllocatePages (\r |
719 | AllocateMaxAddress,\r | |
720 | EfiACPIMemoryNVS,\r | |
91e914f5 | 721 | EFI_SIZE_TO_PAGES (PcdGet32 (PcdTcgLogAreaMinLen)),\r |
0c18794e | 722 | &Lasa\r |
723 | );\r | |
724 | if (EFI_ERROR (Status)) {\r | |
725 | return Status;\r | |
726 | }\r | |
727 | mTcgClientAcpiTemplate.Lasa = Lasa;\r | |
728 | //\r | |
b3548d32 | 729 | // To initialize them as 0xFF is recommended\r |
0c18794e | 730 | // because the OS can know the last entry for that.\r |
731 | //\r | |
91e914f5 CZ |
732 | SetMem ((VOID *)(UINTN)mTcgClientAcpiTemplate.Lasa, PcdGet32 (PcdTcgLogAreaMinLen), 0xFF);\r |
733 | mTcgClientAcpiTemplate.Laml = PcdGet32 (PcdTcgLogAreaMinLen);\r | |
b3548d32 | 734 | \r |
0c18794e | 735 | } else {\r |
736 | Lasa = mTcgServerAcpiTemplate.Lasa;\r | |
b3548d32 | 737 | \r |
0c18794e | 738 | Status = gBS->AllocatePages (\r |
739 | AllocateMaxAddress,\r | |
740 | EfiACPIMemoryNVS,\r | |
91e914f5 | 741 | EFI_SIZE_TO_PAGES (PcdGet32 (PcdTcgLogAreaMinLen)),\r |
0c18794e | 742 | &Lasa\r |
743 | );\r | |
744 | if (EFI_ERROR (Status)) {\r | |
745 | return Status;\r | |
746 | }\r | |
747 | mTcgServerAcpiTemplate.Lasa = Lasa;\r | |
748 | //\r | |
b3548d32 | 749 | // To initialize them as 0xFF is recommended\r |
0c18794e | 750 | // because the OS can know the last entry for that.\r |
751 | //\r | |
91e914f5 CZ |
752 | SetMem ((VOID *)(UINTN)mTcgServerAcpiTemplate.Lasa, PcdGet32 (PcdTcgLogAreaMinLen), 0xFF);\r |
753 | mTcgServerAcpiTemplate.Laml = PcdGet32 (PcdTcgLogAreaMinLen);\r | |
0c18794e | 754 | }\r |
755 | \r | |
756 | GuidHob.Raw = GetHobList ();\r | |
b3548d32 | 757 | while (!EFI_ERROR (Status) &&\r |
0c18794e | 758 | (GuidHob.Raw = GetNextGuidHob (&gTcgEventEntryHobGuid, GuidHob.Raw)) != NULL) {\r |
759 | TcgEvent = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
760 | GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r | |
761 | Status = TcgDxeLogEventI (\r | |
762 | &mTcgDxeData,\r | |
763 | (TCG_PCR_EVENT_HDR*)TcgEvent,\r | |
764 | TcgEvent->Event\r | |
765 | );\r | |
766 | }\r | |
767 | \r | |
768 | return Status;\r | |
769 | }\r | |
770 | \r | |
771 | /**\r | |
772 | Measure and log an action string, and extend the measurement result into PCR[5].\r | |
773 | \r | |
b3548d32 LG |
774 | @param[in] String A specific string that indicates an Action event.\r |
775 | \r | |
0c18794e | 776 | @retval EFI_SUCCESS Operation completed successfully.\r |
777 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
778 | \r | |
779 | **/\r | |
780 | EFI_STATUS\r | |
781 | EFIAPI\r | |
782 | TcgMeasureAction (\r | |
783 | IN CHAR8 *String\r | |
784 | )\r | |
785 | {\r | |
786 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
787 | \r | |
788 | TcgEvent.PCRIndex = 5;\r | |
789 | TcgEvent.EventType = EV_EFI_ACTION;\r | |
790 | TcgEvent.EventSize = (UINT32)AsciiStrLen (String);\r | |
791 | return TcgDxeHashLogExtendEventI (\r | |
792 | &mTcgDxeData,\r | |
793 | (UINT8*)String,\r | |
794 | TcgEvent.EventSize,\r | |
795 | &TcgEvent,\r | |
796 | (UINT8 *) String\r | |
797 | );\r | |
798 | }\r | |
799 | \r | |
800 | /**\r | |
801 | Measure and log EFI handoff tables, and extend the measurement result into PCR[1].\r | |
802 | \r | |
803 | @retval EFI_SUCCESS Operation completed successfully.\r | |
804 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
805 | \r | |
806 | **/\r | |
807 | EFI_STATUS\r | |
808 | EFIAPI\r | |
809 | MeasureHandoffTables (\r | |
810 | VOID\r | |
811 | )\r | |
812 | {\r | |
813 | EFI_STATUS Status;\r | |
0c18794e | 814 | TCG_PCR_EVENT_HDR TcgEvent;\r |
815 | EFI_HANDOFF_TABLE_POINTERS HandoffTables;\r | |
b25380e3 | 816 | UINTN ProcessorNum;\r |
817 | EFI_CPU_PHYSICAL_LOCATION *ProcessorLocBuf;\r | |
0c18794e | 818 | \r |
d4193108 | 819 | ProcessorLocBuf = NULL;\r |
d2de4483 | 820 | Status = EFI_SUCCESS;\r |
0c18794e | 821 | \r |
b25380e3 | 822 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_SERVER) {\r |
823 | //\r | |
b3548d32 | 824 | // Tcg Server spec.\r |
b25380e3 | 825 | // Measure each processor EFI_CPU_PHYSICAL_LOCATION with EV_TABLE_OF_DEVICES to PCR[1]\r |
826 | //\r | |
827 | Status = GetProcessorsCpuLocation(&ProcessorLocBuf, &ProcessorNum);\r | |
828 | \r | |
829 | if (!EFI_ERROR(Status)){\r | |
830 | TcgEvent.PCRIndex = 1;\r | |
831 | TcgEvent.EventType = EV_TABLE_OF_DEVICES;\r | |
832 | TcgEvent.EventSize = sizeof (HandoffTables);\r | |
833 | \r | |
834 | HandoffTables.NumberOfTables = 1;\r | |
835 | HandoffTables.TableEntry[0].VendorGuid = gEfiMpServiceProtocolGuid;\r | |
836 | HandoffTables.TableEntry[0].VendorTable = ProcessorLocBuf;\r | |
837 | \r | |
838 | Status = TcgDxeHashLogExtendEventI (\r | |
839 | &mTcgDxeData,\r | |
840 | (UINT8*)(UINTN)ProcessorLocBuf,\r | |
841 | sizeof(EFI_CPU_PHYSICAL_LOCATION) * ProcessorNum,\r | |
842 | &TcgEvent,\r | |
843 | (UINT8*)&HandoffTables\r | |
844 | );\r | |
845 | \r | |
846 | FreePool(ProcessorLocBuf);\r | |
847 | }\r | |
848 | }\r | |
849 | \r | |
0c18794e | 850 | return Status;\r |
851 | }\r | |
852 | \r | |
853 | /**\r | |
854 | Measure and log Separator event, and extend the measurement result into a specific PCR.\r | |
855 | \r | |
b3548d32 | 856 | @param[in] PCRIndex PCR index.\r |
0c18794e | 857 | \r |
858 | @retval EFI_SUCCESS Operation completed successfully.\r | |
859 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
860 | \r | |
861 | **/\r | |
862 | EFI_STATUS\r | |
863 | EFIAPI\r | |
864 | MeasureSeparatorEvent (\r | |
865 | IN TPM_PCRINDEX PCRIndex\r | |
866 | )\r | |
867 | {\r | |
868 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
869 | UINT32 EventData;\r | |
870 | \r | |
871 | EventData = 0;\r | |
872 | TcgEvent.PCRIndex = PCRIndex;\r | |
873 | TcgEvent.EventType = EV_SEPARATOR;\r | |
874 | TcgEvent.EventSize = (UINT32)sizeof (EventData);\r | |
875 | return TcgDxeHashLogExtendEventI (\r | |
876 | &mTcgDxeData,\r | |
877 | (UINT8 *)&EventData,\r | |
878 | sizeof (EventData),\r | |
879 | &TcgEvent,\r | |
880 | (UINT8 *)&EventData\r | |
881 | );\r | |
882 | }\r | |
883 | \r | |
884 | /**\r | |
885 | Read an EFI Variable.\r | |
886 | \r | |
887 | This function allocates a buffer to return the contents of the variable. The caller is\r | |
888 | responsible for freeing the buffer.\r | |
889 | \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 | |
b3548d32 | 892 | @param[out] VarSize The size of the variable data.\r |
0c18794e | 893 | \r |
894 | @return A pointer to the buffer to return the contents of the variable.Otherwise NULL.\r | |
895 | \r | |
896 | **/\r | |
897 | VOID *\r | |
898 | EFIAPI\r | |
899 | ReadVariable (\r | |
900 | IN CHAR16 *VarName,\r | |
901 | IN EFI_GUID *VendorGuid,\r | |
902 | OUT UINTN *VarSize\r | |
903 | )\r | |
904 | {\r | |
905 | EFI_STATUS Status;\r | |
906 | VOID *VarData;\r | |
907 | \r | |
908 | *VarSize = 0;\r | |
909 | Status = gRT->GetVariable (\r | |
910 | VarName,\r | |
911 | VendorGuid,\r | |
912 | NULL,\r | |
913 | VarSize,\r | |
914 | NULL\r | |
915 | );\r | |
916 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
917 | return NULL;\r | |
918 | }\r | |
919 | \r | |
920 | VarData = AllocatePool (*VarSize);\r | |
921 | if (VarData != NULL) {\r | |
922 | Status = gRT->GetVariable (\r | |
923 | VarName,\r | |
924 | VendorGuid,\r | |
925 | NULL,\r | |
926 | VarSize,\r | |
927 | VarData\r | |
928 | );\r | |
929 | if (EFI_ERROR (Status)) {\r | |
930 | FreePool (VarData);\r | |
931 | VarData = NULL;\r | |
932 | *VarSize = 0;\r | |
933 | }\r | |
934 | }\r | |
935 | return VarData;\r | |
936 | }\r | |
937 | \r | |
938 | /**\r | |
939 | Measure and log an EFI variable, and extend the measurement result into a specific PCR.\r | |
940 | \r | |
b3548d32 LG |
941 | @param[in] PCRIndex PCR Index.\r |
942 | @param[in] EventType Event type.\r | |
0c18794e | 943 | @param[in] VarName A Null-terminated string that is the name of the vendor's variable.\r |
944 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
b3548d32 LG |
945 | @param[in] VarData The content of the variable data.\r |
946 | @param[in] VarSize The size of the variable data.\r | |
947 | \r | |
0c18794e | 948 | @retval EFI_SUCCESS Operation completed successfully.\r |
949 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
950 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
951 | \r | |
952 | **/\r | |
953 | EFI_STATUS\r | |
954 | EFIAPI\r | |
955 | MeasureVariable (\r | |
956 | IN TPM_PCRINDEX PCRIndex,\r | |
957 | IN TCG_EVENTTYPE EventType,\r | |
958 | IN CHAR16 *VarName,\r | |
959 | IN EFI_GUID *VendorGuid,\r | |
960 | IN VOID *VarData,\r | |
961 | IN UINTN VarSize\r | |
962 | )\r | |
963 | {\r | |
964 | EFI_STATUS Status;\r | |
965 | TCG_PCR_EVENT_HDR TcgEvent;\r | |
966 | UINTN VarNameLength;\r | |
967 | EFI_VARIABLE_DATA *VarLog;\r | |
968 | \r | |
969 | VarNameLength = StrLen (VarName);\r | |
970 | TcgEvent.PCRIndex = PCRIndex;\r | |
971 | TcgEvent.EventType = EventType;\r | |
972 | TcgEvent.EventSize = (UINT32)(sizeof (*VarLog) + VarNameLength * sizeof (*VarName) + VarSize\r | |
973 | - sizeof (VarLog->UnicodeName) - sizeof (VarLog->VariableData));\r | |
974 | \r | |
975 | VarLog = (EFI_VARIABLE_DATA*)AllocatePool (TcgEvent.EventSize);\r | |
976 | if (VarLog == NULL) {\r | |
977 | return EFI_OUT_OF_RESOURCES;\r | |
978 | }\r | |
979 | \r | |
980 | VarLog->VariableName = *VendorGuid;\r | |
981 | VarLog->UnicodeNameLength = VarNameLength;\r | |
982 | VarLog->VariableDataLength = VarSize;\r | |
983 | CopyMem (\r | |
984 | VarLog->UnicodeName,\r | |
985 | VarName,\r | |
986 | VarNameLength * sizeof (*VarName)\r | |
987 | );\r | |
988 | CopyMem (\r | |
989 | (CHAR16 *)VarLog->UnicodeName + VarNameLength,\r | |
990 | VarData,\r | |
991 | VarSize\r | |
992 | );\r | |
993 | \r | |
994 | Status = TcgDxeHashLogExtendEventI (\r | |
995 | &mTcgDxeData,\r | |
36811012 CZ |
996 | (UINT8*)VarLog,\r |
997 | TcgEvent.EventSize,\r | |
0c18794e | 998 | &TcgEvent,\r |
999 | (UINT8*)VarLog\r | |
1000 | );\r | |
1001 | FreePool (VarLog);\r | |
1002 | return Status;\r | |
1003 | }\r | |
1004 | \r | |
1005 | /**\r | |
1006 | Read then Measure and log an EFI boot variable, and extend the measurement result into PCR[5].\r | |
1007 | \r | |
1008 | @param[in] VarName A Null-terminated string that is the name of the vendor's variable.\r | |
1009 | @param[in] VendorGuid A unique identifier for the vendor.\r | |
b3548d32 LG |
1010 | @param[out] VarSize The size of the variable data.\r |
1011 | @param[out] VarData Pointer to the content of the variable.\r | |
1012 | \r | |
0c18794e | 1013 | @retval EFI_SUCCESS Operation completed successfully.\r |
1014 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
1015 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
1016 | \r | |
1017 | **/\r | |
1018 | EFI_STATUS\r | |
1019 | EFIAPI\r | |
1020 | ReadAndMeasureBootVariable (\r | |
1021 | IN CHAR16 *VarName,\r | |
1022 | IN EFI_GUID *VendorGuid,\r | |
1023 | OUT UINTN *VarSize,\r | |
1024 | OUT VOID **VarData\r | |
1025 | )\r | |
1026 | {\r | |
1027 | EFI_STATUS Status;\r | |
1028 | \r | |
1029 | *VarData = ReadVariable (VarName, VendorGuid, VarSize);\r | |
1030 | if (*VarData == NULL) {\r | |
1031 | return EFI_NOT_FOUND;\r | |
1032 | }\r | |
1033 | \r | |
1034 | Status = MeasureVariable (\r | |
1035 | 5,\r | |
1036 | EV_EFI_VARIABLE_BOOT,\r | |
1037 | VarName,\r | |
1038 | VendorGuid,\r | |
1039 | *VarData,\r | |
1040 | *VarSize\r | |
1041 | );\r | |
1042 | return Status;\r | |
1043 | }\r | |
1044 | \r | |
1045 | /**\r | |
1046 | Measure and log all EFI boot variables, and extend the measurement result into a specific PCR.\r | |
1047 | \r | |
1048 | The EFI boot variables are BootOrder and Boot#### variables.\r | |
1049 | \r | |
1050 | @retval EFI_SUCCESS Operation completed successfully.\r | |
1051 | @retval EFI_OUT_OF_RESOURCES Out of memory.\r | |
1052 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
1053 | \r | |
1054 | **/\r | |
1055 | EFI_STATUS\r | |
1056 | EFIAPI\r | |
1057 | MeasureAllBootVariables (\r | |
1058 | VOID\r | |
1059 | )\r | |
1060 | {\r | |
1061 | EFI_STATUS Status;\r | |
1062 | UINT16 *BootOrder;\r | |
1063 | UINTN BootCount;\r | |
1064 | UINTN Index;\r | |
1065 | VOID *BootVarData;\r | |
1066 | UINTN Size;\r | |
1067 | \r | |
1068 | Status = ReadAndMeasureBootVariable (\r | |
1069 | mBootVarName,\r | |
1070 | &gEfiGlobalVariableGuid,\r | |
1071 | &BootCount,\r | |
1072 | (VOID **) &BootOrder\r | |
1073 | );\r | |
61959fa9 | 1074 | if (Status == EFI_NOT_FOUND || BootOrder == NULL) {\r |
0c18794e | 1075 | return EFI_SUCCESS;\r |
1076 | }\r | |
0c18794e | 1077 | \r |
1078 | if (EFI_ERROR (Status)) {\r | |
f7fe68db CZ |
1079 | //\r |
1080 | // BootOrder can't be NULL if status is not EFI_NOT_FOUND\r | |
1081 | //\r | |
0c18794e | 1082 | FreePool (BootOrder);\r |
1083 | return Status;\r | |
1084 | }\r | |
1085 | \r | |
1086 | BootCount /= sizeof (*BootOrder);\r | |
1087 | for (Index = 0; Index < BootCount; Index++) {\r | |
1088 | UnicodeSPrint (mBootVarName, sizeof (mBootVarName), L"Boot%04x", BootOrder[Index]);\r | |
1089 | Status = ReadAndMeasureBootVariable (\r | |
1090 | mBootVarName,\r | |
1091 | &gEfiGlobalVariableGuid,\r | |
1092 | &Size,\r | |
1093 | &BootVarData\r | |
1094 | );\r | |
1095 | if (!EFI_ERROR (Status)) {\r | |
1096 | FreePool (BootVarData);\r | |
1097 | }\r | |
1098 | }\r | |
1099 | \r | |
1100 | FreePool (BootOrder);\r | |
1101 | return EFI_SUCCESS;\r | |
1102 | }\r | |
1103 | \r | |
1104 | /**\r | |
1105 | Ready to Boot Event notification handler.\r | |
1106 | \r | |
1107 | Sequence of OS boot events is measured in this event notification handler.\r | |
1108 | \r | |
1109 | @param[in] Event Event whose notification function is being invoked\r | |
1110 | @param[in] Context Pointer to the notification function's context\r | |
1111 | \r | |
1112 | **/\r | |
1113 | VOID\r | |
1114 | EFIAPI\r | |
1115 | OnReadyToBoot (\r | |
1116 | IN EFI_EVENT Event,\r | |
1117 | IN VOID *Context\r | |
1118 | )\r | |
1119 | {\r | |
1120 | EFI_STATUS Status;\r | |
1121 | TPM_PCRINDEX PcrIndex;\r | |
1122 | \r | |
1123 | if (mBootAttempts == 0) {\r | |
1124 | \r | |
1125 | //\r | |
1126 | // Measure handoff tables.\r | |
1127 | //\r | |
1128 | Status = MeasureHandoffTables ();\r | |
1129 | if (EFI_ERROR (Status)) {\r | |
1130 | DEBUG ((EFI_D_ERROR, "HOBs not Measured. Error!\n"));\r | |
1131 | }\r | |
1132 | \r | |
1133 | //\r | |
1134 | // Measure BootOrder & Boot#### variables.\r | |
1135 | //\r | |
1136 | Status = MeasureAllBootVariables ();\r | |
1137 | if (EFI_ERROR (Status)) {\r | |
1138 | DEBUG ((EFI_D_ERROR, "Boot Variables not Measured. Error!\n"));\r | |
1139 | }\r | |
1140 | \r | |
1141 | //\r | |
1142 | // 1. This is the first boot attempt.\r | |
1143 | //\r | |
1144 | Status = TcgMeasureAction (\r | |
1145 | EFI_CALLING_EFI_APPLICATION\r | |
1146 | );\r | |
f7fe68db | 1147 | if (EFI_ERROR (Status)) {\r |
655dabe3 | 1148 | DEBUG ((EFI_D_ERROR, "%a not Measured. Error!\n", EFI_CALLING_EFI_APPLICATION));\r |
f7fe68db | 1149 | }\r |
0c18794e | 1150 | \r |
1151 | //\r | |
1152 | // 2. Draw a line between pre-boot env and entering post-boot env.\r | |
1153 | //\r | |
1154 | for (PcrIndex = 0; PcrIndex < 8; PcrIndex++) {\r | |
1155 | Status = MeasureSeparatorEvent (PcrIndex);\r | |
f7fe68db | 1156 | if (EFI_ERROR (Status)) {\r |
0ab475c9 | 1157 | DEBUG ((DEBUG_ERROR, "Separator Event not Measured. Error!\n"));\r |
f7fe68db | 1158 | }\r |
0c18794e | 1159 | }\r |
1160 | \r | |
1161 | //\r | |
1162 | // 3. Measure GPT. It would be done in SAP driver.\r | |
1163 | //\r | |
1164 | \r | |
1165 | //\r | |
1166 | // 4. Measure PE/COFF OS loader. It would be done in SAP driver.\r | |
1167 | //\r | |
1168 | \r | |
1169 | //\r | |
1170 | // 5. Read & Measure variable. BootOrder already measured.\r | |
1171 | //\r | |
1172 | } else {\r | |
1173 | //\r | |
1174 | // 6. Not first attempt, meaning a return from last attempt\r | |
1175 | //\r | |
1176 | Status = TcgMeasureAction (\r | |
5f3b0250 | 1177 | EFI_RETURNING_FROM_EFI_APPLICATION\r |
0c18794e | 1178 | );\r |
f7fe68db | 1179 | if (EFI_ERROR (Status)) {\r |
5f3b0250 | 1180 | DEBUG ((EFI_D_ERROR, "%a not Measured. Error!\n", EFI_RETURNING_FROM_EFI_APPLICATION));\r |
f7fe68db | 1181 | }\r |
0c18794e | 1182 | }\r |
1183 | \r | |
1184 | DEBUG ((EFI_D_INFO, "TPM TcgDxe Measure Data when ReadyToBoot\n"));\r | |
1185 | //\r | |
1186 | // Increase boot attempt counter.\r | |
1187 | //\r | |
1188 | mBootAttempts++;\r | |
1189 | }\r | |
1190 | \r | |
1191 | /**\r | |
1192 | Install TCG ACPI Table when ACPI Table Protocol is available.\r | |
1193 | \r | |
b3548d32 LG |
1194 | A system's firmware uses an ACPI table to identify the system's TCG capabilities\r |
1195 | to the Post-Boot environment. The information in this ACPI table is not guaranteed\r | |
1196 | to be valid until the Host Platform transitions from pre-boot state to post-boot state.\r | |
0c18794e | 1197 | \r |
1198 | @param[in] Event Event whose notification function is being invoked\r | |
1199 | @param[in] Context Pointer to the notification function's context\r | |
1200 | **/\r | |
1201 | VOID\r | |
1202 | EFIAPI\r | |
1203 | InstallAcpiTable (\r | |
1204 | IN EFI_EVENT Event,\r | |
1205 | IN VOID* Context\r | |
1206 | )\r | |
1207 | {\r | |
1208 | UINTN TableKey;\r | |
1209 | EFI_STATUS Status;\r | |
1210 | EFI_ACPI_TABLE_PROTOCOL *AcpiTable;\r | |
1211 | UINT8 Checksum;\r | |
e84f07b5 | 1212 | UINT64 OemTableId;\r |
0c18794e | 1213 | \r |
1214 | Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID **)&AcpiTable);\r | |
1215 | if (EFI_ERROR (Status)) {\r | |
1216 | return;\r | |
1217 | }\r | |
1218 | \r | |
1219 | if (PcdGet8 (PcdTpmPlatformClass) == TCG_PLATFORM_TYPE_CLIENT) {\r | |
e84f07b5 SZ |
1220 | CopyMem (mTcgClientAcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTcgClientAcpiTemplate.Header.OemId));\r |
1221 | OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);\r | |
1222 | CopyMem (&mTcgClientAcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));\r | |
1223 | mTcgClientAcpiTemplate.Header.OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);\r | |
1224 | mTcgClientAcpiTemplate.Header.CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);\r | |
1225 | mTcgClientAcpiTemplate.Header.CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);\r | |
0c18794e | 1226 | //\r |
b3548d32 | 1227 | // The ACPI table must be checksumed before calling the InstallAcpiTable()\r |
0c18794e | 1228 | // service of the ACPI table protocol to install it.\r |
1229 | //\r | |
1230 | Checksum = CalculateCheckSum8 ((UINT8 *)&mTcgClientAcpiTemplate, sizeof (mTcgClientAcpiTemplate));\r | |
1231 | mTcgClientAcpiTemplate.Header.Checksum = Checksum;\r | |
1232 | \r | |
1233 | Status = AcpiTable->InstallAcpiTable (\r | |
1234 | AcpiTable,\r | |
1235 | &mTcgClientAcpiTemplate,\r | |
1236 | sizeof (mTcgClientAcpiTemplate),\r | |
1237 | &TableKey\r | |
1238 | );\r | |
1239 | } else {\r | |
e84f07b5 SZ |
1240 | CopyMem (mTcgServerAcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTcgServerAcpiTemplate.Header.OemId));\r |
1241 | OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);\r | |
1242 | CopyMem (&mTcgServerAcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));\r | |
1243 | mTcgServerAcpiTemplate.Header.OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);\r | |
1244 | mTcgServerAcpiTemplate.Header.CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);\r | |
1245 | mTcgServerAcpiTemplate.Header.CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);\r | |
0c18794e | 1246 | //\r |
b3548d32 | 1247 | // The ACPI table must be checksumed before calling the InstallAcpiTable()\r |
0c18794e | 1248 | // service of the ACPI table protocol to install it.\r |
1249 | //\r | |
1250 | Checksum = CalculateCheckSum8 ((UINT8 *)&mTcgServerAcpiTemplate, sizeof (mTcgServerAcpiTemplate));\r | |
1251 | mTcgServerAcpiTemplate.Header.Checksum = Checksum;\r | |
1252 | \r | |
7cb1b15b | 1253 | mTcgServerAcpiTemplate.BaseAddress.Address = PcdGet64 (PcdTpmBaseAddress);\r |
0c18794e | 1254 | Status = AcpiTable->InstallAcpiTable (\r |
1255 | AcpiTable,\r | |
1256 | &mTcgServerAcpiTemplate,\r | |
1257 | sizeof (mTcgServerAcpiTemplate),\r | |
1258 | &TableKey\r | |
1259 | );\r | |
1260 | }\r | |
f7fe68db CZ |
1261 | \r |
1262 | if (EFI_ERROR (Status)) {\r | |
1263 | DEBUG((EFI_D_ERROR, "Tcg Acpi Table installation failure"));\r | |
1264 | }\r | |
0c18794e | 1265 | }\r |
1266 | \r | |
1267 | /**\r | |
1268 | Exit Boot Services Event notification handler.\r | |
1269 | \r | |
1270 | Measure invocation and success of ExitBootServices.\r | |
1271 | \r | |
1272 | @param[in] Event Event whose notification function is being invoked\r | |
1273 | @param[in] Context Pointer to the notification function's context\r | |
1274 | \r | |
1275 | **/\r | |
1276 | VOID\r | |
1277 | EFIAPI\r | |
1278 | OnExitBootServices (\r | |
1279 | IN EFI_EVENT Event,\r | |
1280 | IN VOID *Context\r | |
1281 | )\r | |
1282 | {\r | |
1283 | EFI_STATUS Status;\r | |
1284 | \r | |
1285 | //\r | |
1286 | // Measure invocation of ExitBootServices,\r | |
1287 | //\r | |
1288 | Status = TcgMeasureAction (\r | |
1289 | EFI_EXIT_BOOT_SERVICES_INVOCATION\r | |
1290 | );\r | |
f7fe68db | 1291 | if (EFI_ERROR (Status)) {\r |
655dabe3 | 1292 | DEBUG ((EFI_D_ERROR, "%a not Measured. Error!\n", EFI_EXIT_BOOT_SERVICES_INVOCATION));\r |
f7fe68db | 1293 | }\r |
0c18794e | 1294 | \r |
1295 | //\r | |
1296 | // Measure success of ExitBootServices\r | |
1297 | //\r | |
1298 | Status = TcgMeasureAction (\r | |
1299 | EFI_EXIT_BOOT_SERVICES_SUCCEEDED\r | |
1300 | );\r | |
f7fe68db | 1301 | if (EFI_ERROR (Status)){\r |
655dabe3 | 1302 | DEBUG ((EFI_D_ERROR, "%a not Measured. Error!\n", EFI_EXIT_BOOT_SERVICES_SUCCEEDED));\r |
f7fe68db | 1303 | }\r |
0c18794e | 1304 | }\r |
1305 | \r | |
9e945f78 | 1306 | /**\r |
1307 | Exit Boot Services Failed Event notification handler.\r | |
1308 | \r | |
1309 | Measure Failure of ExitBootServices.\r | |
1310 | \r | |
1311 | @param[in] Event Event whose notification function is being invoked\r | |
1312 | @param[in] Context Pointer to the notification function's context\r | |
1313 | \r | |
1314 | **/\r | |
1315 | VOID\r | |
1316 | EFIAPI\r | |
1317 | OnExitBootServicesFailed (\r | |
1318 | IN EFI_EVENT Event,\r | |
1319 | IN VOID *Context\r | |
1320 | )\r | |
1321 | {\r | |
1322 | EFI_STATUS Status;\r | |
1323 | \r | |
1324 | //\r | |
1325 | // Measure Failure of ExitBootServices,\r | |
1326 | //\r | |
1327 | Status = TcgMeasureAction (\r | |
1328 | EFI_EXIT_BOOT_SERVICES_FAILED\r | |
1329 | );\r | |
f7fe68db | 1330 | if (EFI_ERROR (Status)){\r |
655dabe3 | 1331 | DEBUG ((EFI_D_ERROR, "%a not Measured. Error!\n", EFI_EXIT_BOOT_SERVICES_FAILED));\r |
f7fe68db | 1332 | }\r |
9e945f78 | 1333 | }\r |
1334 | \r | |
0c18794e | 1335 | /**\r |
1336 | Get TPM Deactivated state.\r | |
1337 | \r | |
b3548d32 | 1338 | @param[out] TPMDeactivatedFlag Returns TPM Deactivated state.\r |
0c18794e | 1339 | \r |
1340 | @retval EFI_SUCCESS Operation completed successfully.\r | |
1341 | @retval EFI_DEVICE_ERROR The operation was unsuccessful.\r | |
1342 | \r | |
1343 | **/\r | |
1344 | EFI_STATUS\r | |
1345 | GetTpmStatus (\r | |
441a3678 | 1346 | OUT BOOLEAN *TPMDeactivatedFlag\r |
0c18794e | 1347 | )\r |
1348 | {\r | |
441a3678 MK |
1349 | EFI_STATUS Status;\r |
1350 | TPM_STCLEAR_FLAGS VolatileFlags;\r | |
0c18794e | 1351 | \r |
441a3678 | 1352 | Status = Tpm12GetCapabilityFlagVolatile (&VolatileFlags);\r |
0c18794e | 1353 | if (!EFI_ERROR (Status)) {\r |
441a3678 | 1354 | *TPMDeactivatedFlag = VolatileFlags.deactivated;\r |
0c18794e | 1355 | }\r |
1356 | \r | |
1357 | return Status;\r | |
1358 | }\r | |
1359 | \r | |
1360 | /**\r | |
1361 | The driver's entry point.\r | |
1362 | \r | |
1363 | It publishes EFI TCG Protocol.\r | |
1364 | \r | |
b3548d32 | 1365 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r |
0c18794e | 1366 | @param[in] SystemTable A pointer to the EFI System Table.\r |
b3548d32 | 1367 | \r |
0c18794e | 1368 | @retval EFI_SUCCESS The entry point is executed successfully.\r |
1369 | @retval other Some error occurs when executing this entry point.\r | |
1370 | \r | |
1371 | **/\r | |
1372 | EFI_STATUS\r | |
1373 | EFIAPI\r | |
1374 | DriverEntry (\r | |
1375 | IN EFI_HANDLE ImageHandle,\r | |
1376 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1377 | )\r | |
1378 | {\r | |
1379 | EFI_STATUS Status;\r | |
1380 | EFI_EVENT Event;\r | |
1381 | VOID *Registration;\r | |
1382 | \r | |
c1d93242 JY |
1383 | if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)){\r |
1384 | DEBUG ((EFI_D_ERROR, "No TPM12 instance required!\n"));\r | |
1385 | return EFI_UNSUPPORTED;\r | |
1386 | }\r | |
1387 | \r | |
3dd05ac3 JY |
1388 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r |
1389 | DEBUG ((EFI_D_ERROR, "TPM error!\n"));\r | |
1390 | return EFI_DEVICE_ERROR;\r | |
1391 | }\r | |
1392 | \r | |
7cb1b15b | 1393 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 1394 | if (EFI_ERROR (Status)) {\r |
1395 | DEBUG ((EFI_D_ERROR, "TPM not detected!\n"));\r | |
1396 | return Status;\r | |
1397 | }\r | |
1398 | \r | |
1399 | Status = GetTpmStatus (&mTcgDxeData.BsCap.TPMDeactivatedFlag);\r | |
1400 | if (EFI_ERROR (Status)) {\r | |
1401 | DEBUG ((\r | |
1402 | EFI_D_ERROR,\r | |
ec4910cd | 1403 | "DriverEntry: TPM not working properly\n"\r |
0c18794e | 1404 | ));\r |
1405 | return Status;\r | |
1406 | }\r | |
1407 | \r | |
1408 | Status = gBS->InstallProtocolInterface (\r | |
1409 | &ImageHandle,\r | |
1410 | &gEfiTcgProtocolGuid,\r | |
1411 | EFI_NATIVE_INTERFACE,\r | |
1412 | &mTcgDxeData.TcgProtocol\r | |
1413 | );\r | |
5dbb6635 | 1414 | if (!EFI_ERROR (Status) && (!mTcgDxeData.BsCap.TPMDeactivatedFlag) && mTcgDxeData.BsCap.TPMPresentFlag) {\r |
0c18794e | 1415 | //\r |
1416 | // Setup the log area and copy event log from hob list to it\r | |
1417 | //\r | |
1418 | Status = SetupEventLog ();\r | |
1419 | ASSERT_EFI_ERROR (Status);\r | |
1420 | \r | |
1421 | //\r | |
1422 | // Measure handoff tables, Boot#### variables etc.\r | |
1423 | //\r | |
1424 | Status = EfiCreateEventReadyToBootEx (\r | |
1425 | TPL_CALLBACK,\r | |
1426 | OnReadyToBoot,\r | |
1427 | NULL,\r | |
1428 | &Event\r | |
1429 | );\r | |
1430 | \r | |
1431 | Status = gBS->CreateEventEx (\r | |
1432 | EVT_NOTIFY_SIGNAL,\r | |
1433 | TPL_NOTIFY,\r | |
1434 | OnExitBootServices,\r | |
1435 | NULL,\r | |
1436 | &gEfiEventExitBootServicesGuid,\r | |
1437 | &Event\r | |
1438 | );\r | |
9e945f78 | 1439 | \r |
1440 | //\r | |
b3548d32 | 1441 | // Measure Exit Boot Service failed\r |
9e945f78 | 1442 | //\r |
1443 | Status = gBS->CreateEventEx (\r | |
1444 | EVT_NOTIFY_SIGNAL,\r | |
1445 | TPL_NOTIFY,\r | |
1446 | OnExitBootServicesFailed,\r | |
1447 | NULL,\r | |
1448 | &gEventExitBootServicesFailedGuid,\r | |
1449 | &Event\r | |
1450 | );\r | |
0c18794e | 1451 | }\r |
1452 | \r | |
627c3961 | 1453 | //\r |
1454 | // Install ACPI Table\r | |
1455 | //\r | |
1456 | EfiCreateProtocolNotifyEvent (&gEfiAcpiTableProtocolGuid, TPL_CALLBACK, InstallAcpiTable, NULL, &Registration);\r | |
b3548d32 | 1457 | \r |
0c18794e | 1458 | return Status;\r |
1459 | }\r |