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0c18794e | 1 | /** @file\r |
2 | Initialize TPM device and measure FVs before handing off control to DXE.\r | |
3 | \r | |
3e07c656 | 4 | Copyright (c) 2005 - 2020, Intel Corporation. All rights reserved.<BR>\r |
289b714b | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
0c18794e | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include <PiPei.h>\r | |
10 | \r | |
11 | #include <IndustryStandard/Tpm12.h>\r | |
12 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
13 | #include <Ppi/FirmwareVolumeInfo.h>\r | |
c7935105 | 14 | #include <Ppi/FirmwareVolumeInfo2.h>\r |
0c18794e | 15 | #include <Ppi/LockPhysicalPresence.h>\r |
16 | #include <Ppi/TpmInitialized.h>\r | |
17 | #include <Ppi/FirmwareVolume.h>\r | |
2aadc920 | 18 | #include <Ppi/EndOfPeiPhase.h>\r |
c1d93242 | 19 | #include <Ppi/FirmwareVolumeInfoMeasurementExcluded.h>\r |
3e07c656 | 20 | #include <Ppi/Tcg.h>\r |
2aadc920 | 21 | \r |
0c18794e | 22 | #include <Guid/TcgEventHob.h>\r |
0758c830 | 23 | #include <Guid/MeasuredFvHob.h>\r |
c1d93242 | 24 | #include <Guid/TpmInstance.h>\r |
ffde2246 | 25 | #include <Guid/MigratedFvInfo.h>\r |
2aadc920 | 26 | \r |
0c18794e | 27 | #include <Library/DebugLib.h>\r |
28 | #include <Library/BaseMemoryLib.h>\r | |
29 | #include <Library/PeiServicesLib.h>\r | |
30 | #include <Library/PeimEntryPoint.h>\r | |
0c18794e | 31 | #include <Library/HobLib.h>\r |
32 | #include <Library/PcdLib.h>\r | |
33 | #include <Library/PeiServicesTablePointerLib.h>\r | |
333a53ee | 34 | #include <Library/BaseLib.h>\r |
b5412eac | 35 | #include <Library/MemoryAllocationLib.h>\r |
6f785cfc | 36 | #include <Library/ReportStatusCodeLib.h>\r |
45500265 MK |
37 | #include <Library/Tpm12DeviceLib.h>\r |
38 | #include <Library/Tpm12CommandLib.h>\r | |
39 | #include <Library/BaseCryptLib.h>\r | |
d9c5beb1 | 40 | #include <Library/PerformanceLib.h>\r |
0c18794e | 41 | \r |
42 | BOOLEAN mImageInMemory = FALSE;\r | |
43 | \r | |
44 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializedPpiList = {\r | |
45 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
46 | &gPeiTpmInitializedPpiGuid,\r | |
47 | NULL\r | |
48 | };\r | |
49 | \r | |
83a276f6 JY |
50 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializationDonePpiList = {\r |
51 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
52 | &gPeiTpmInitializationDonePpiGuid,\r | |
53 | NULL\r | |
54 | };\r | |
55 | \r | |
3e07c656 JY |
56 | /**\r |
57 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
58 | and build a GUIDed HOB recording the event which will be passed to the DXE phase and\r | |
59 | added into the Event Log.\r | |
60 | \r | |
61 | @param[in] This Indicates the calling context\r | |
62 | @param[in] Flags Bitmap providing additional information.\r | |
63 | @param[in] HashData Physical address of the start of the data buffer\r | |
64 | to be hashed, extended, and logged.\r | |
65 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData.\r | |
66 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.\r | |
67 | @param[in] NewEventData Pointer to the new event data.\r | |
68 | \r | |
69 | @retval EFI_SUCCESS Operation completed successfully.\r | |
70 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
71 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
72 | \r | |
73 | **/\r | |
74 | EFI_STATUS\r | |
75 | EFIAPI\r | |
76 | HashLogExtendEvent (\r | |
77 | IN EDKII_TCG_PPI *This,\r | |
78 | IN UINT64 Flags,\r | |
79 | IN UINT8 *HashData,\r | |
80 | IN UINTN HashDataLen,\r | |
81 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
82 | IN UINT8 *NewEventData\r | |
83 | );\r | |
84 | \r | |
85 | EDKII_TCG_PPI mEdkiiTcgPpi = {\r | |
86 | HashLogExtendEvent\r | |
87 | };\r | |
88 | \r | |
89 | EFI_PEI_PPI_DESCRIPTOR mTcgPpiList = {\r | |
90 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
91 | &gEdkiiTcgPpiGuid,\r | |
92 | &mEdkiiTcgPpi\r | |
93 | };\r | |
94 | \r | |
aa8c6e2a SZ |
95 | //\r |
96 | // Number of firmware blobs to grow by each time we run out of room\r | |
97 | //\r | |
98 | #define FIRMWARE_BLOB_GROWTH_STEP 4\r | |
99 | \r | |
b5412eac | 100 | EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredBaseFvInfo;\r |
aa8c6e2a | 101 | UINT32 mMeasuredMaxBaseFvIndex = 0;\r |
2aadc920 | 102 | UINT32 mMeasuredBaseFvIndex = 0;\r |
103 | \r | |
b5412eac | 104 | EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredChildFvInfo;\r |
aa8c6e2a | 105 | UINT32 mMeasuredMaxChildFvIndex = 0;\r |
2aadc920 | 106 | UINT32 mMeasuredChildFvIndex = 0;\r |
107 | \r | |
c1d93242 JY |
108 | EFI_PEI_FIRMWARE_VOLUME_INFO_MEASUREMENT_EXCLUDED_PPI *mMeasurementExcludedFvPpi;\r |
109 | \r | |
0c18794e | 110 | /**\r |
111 | Lock physical presence if needed.\r | |
112 | \r | |
113 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
114 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
115 | @param[in] Ppi Address of the PPI that was installed.\r | |
116 | \r | |
117 | @retval EFI_SUCCESS Operation completed successfully.\r | |
118 | \r | |
119 | **/\r | |
120 | EFI_STATUS\r | |
121 | EFIAPI\r | |
122 | PhysicalPresencePpiNotifyCallback (\r | |
123 | IN EFI_PEI_SERVICES **PeiServices,\r | |
124 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
125 | IN VOID *Ppi\r | |
126 | );\r | |
127 | \r | |
128 | /**\r | |
d6b926e7 | 129 | Measure and record the Firmware Volume Information once FvInfoPPI install.\r |
0c18794e | 130 | \r |
131 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
132 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
133 | @param[in] Ppi Address of the PPI that was installed.\r | |
134 | \r | |
135 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
136 | @return Others Fail to measure FV.\r | |
137 | \r | |
138 | **/\r | |
139 | EFI_STATUS\r | |
140 | EFIAPI\r | |
d6b926e7 | 141 | FirmwareVolumeInfoPpiNotifyCallback (\r |
0c18794e | 142 | IN EFI_PEI_SERVICES **PeiServices,\r |
143 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
144 | IN VOID *Ppi\r | |
145 | );\r | |
146 | \r | |
2aadc920 | 147 | /**\r |
d6b926e7 | 148 | Record all measured Firmware Volume Information into a Guid Hob\r |
2aadc920 | 149 | \r |
150 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
151 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
152 | @param[in] Ppi Address of the PPI that was installed.\r | |
153 | \r | |
154 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
155 | @return Others Fail to measure FV.\r | |
156 | \r | |
157 | **/\r | |
158 | EFI_STATUS\r | |
159 | EFIAPI\r | |
160 | EndofPeiSignalNotifyCallBack (\r | |
161 | IN EFI_PEI_SERVICES **PeiServices,\r | |
162 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
163 | IN VOID *Ppi\r | |
164 | );\r | |
165 | \r | |
0c18794e | 166 | EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList[] = {\r |
167 | {\r | |
168 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
169 | &gPeiLockPhysicalPresencePpiGuid,\r | |
170 | PhysicalPresencePpiNotifyCallback\r | |
171 | },\r | |
172 | {\r | |
2aadc920 | 173 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
0c18794e | 174 | &gEfiPeiFirmwareVolumeInfoPpiGuid,\r |
d6b926e7 | 175 | FirmwareVolumeInfoPpiNotifyCallback\r |
2aadc920 | 176 | },\r |
c7935105 SZ |
177 | {\r |
178 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
179 | &gEfiPeiFirmwareVolumeInfo2PpiGuid,\r | |
d6b926e7 | 180 | FirmwareVolumeInfoPpiNotifyCallback\r |
c7935105 | 181 | },\r |
2aadc920 | 182 | {\r |
183 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
184 | &gEfiEndOfPeiSignalPpiGuid,\r | |
185 | EndofPeiSignalNotifyCallBack\r | |
0c18794e | 186 | }\r |
187 | };\r | |
188 | \r | |
2aadc920 | 189 | /**\r |
dd40a1f8 | 190 | Record all measured Firmware Volume Information into a Guid Hob\r |
b3548d32 | 191 | Guid Hob payload layout is\r |
2aadc920 | 192 | \r |
193 | UINT32 *************************** FIRMWARE_BLOB number\r | |
194 | EFI_PLATFORM_FIRMWARE_BLOB******** BLOB Array\r | |
195 | \r | |
196 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
197 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
198 | @param[in] Ppi Address of the PPI that was installed.\r | |
199 | \r | |
200 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
201 | @return Others Fail to measure FV.\r | |
202 | \r | |
203 | **/\r | |
204 | EFI_STATUS\r | |
205 | EFIAPI\r | |
206 | EndofPeiSignalNotifyCallBack (\r | |
207 | IN EFI_PEI_SERVICES **PeiServices,\r | |
208 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
209 | IN VOID *Ppi\r | |
210 | )\r | |
b3548d32 | 211 | {\r |
0758c830 | 212 | MEASURED_HOB_DATA *MeasuredHobData;\r |
2aadc920 | 213 | \r |
0758c830 | 214 | MeasuredHobData = NULL;\r |
2aadc920 | 215 | \r |
d9c5beb1 DB |
216 | PERF_CALLBACK_BEGIN (&gEfiEndOfPeiSignalPpiGuid);\r |
217 | \r | |
2aadc920 | 218 | //\r |
b3548d32 | 219 | // Create a Guid hob to save all measured Fv\r |
2aadc920 | 220 | //\r |
0758c830 | 221 | MeasuredHobData = BuildGuidHob(\r |
222 | &gMeasuredFvHobGuid,\r | |
223 | sizeof(UINTN) + sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex + mMeasuredChildFvIndex)\r | |
224 | );\r | |
2aadc920 | 225 | \r |
0758c830 | 226 | if (MeasuredHobData != NULL){\r |
2aadc920 | 227 | //\r |
228 | // Save measured FV info enty number\r | |
229 | //\r | |
0758c830 | 230 | MeasuredHobData->Num = mMeasuredBaseFvIndex + mMeasuredChildFvIndex;\r |
2aadc920 | 231 | \r |
2aadc920 | 232 | //\r |
233 | // Save measured base Fv info\r | |
234 | //\r | |
0758c830 | 235 | CopyMem (MeasuredHobData->MeasuredFvBuf, mMeasuredBaseFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex));\r |
2aadc920 | 236 | \r |
2aadc920 | 237 | //\r |
238 | // Save measured child Fv info\r | |
239 | //\r | |
0758c830 | 240 | CopyMem (&MeasuredHobData->MeasuredFvBuf[mMeasuredBaseFvIndex] , mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));\r |
2aadc920 | 241 | }\r |
242 | \r | |
d9c5beb1 DB |
243 | PERF_CALLBACK_END (&gEfiEndOfPeiSignalPpiGuid);\r |
244 | \r | |
2aadc920 | 245 | return EFI_SUCCESS;\r |
246 | }\r | |
0c18794e | 247 | \r |
45500265 MK |
248 | /**\r |
249 | Single function calculates SHA1 digest value for all raw data. It\r | |
250 | combines Sha1Init(), Sha1Update() and Sha1Final().\r | |
251 | \r | |
252 | @param[in] Data Raw data to be digested.\r | |
253 | @param[in] DataLen Size of the raw data.\r | |
254 | @param[out] Digest Pointer to a buffer that stores the final digest.\r | |
255 | \r | |
256 | @retval EFI_SUCCESS Always successfully calculate the final digest.\r | |
257 | **/\r | |
258 | EFI_STATUS\r | |
259 | EFIAPI\r | |
260 | TpmCommHashAll (\r | |
261 | IN CONST UINT8 *Data,\r | |
262 | IN UINTN DataLen,\r | |
263 | OUT TPM_DIGEST *Digest\r | |
264 | )\r | |
265 | {\r | |
266 | VOID *Sha1Ctx;\r | |
267 | UINTN CtxSize;\r | |
268 | \r | |
269 | CtxSize = Sha1GetContextSize ();\r | |
270 | Sha1Ctx = AllocatePool (CtxSize);\r | |
271 | ASSERT (Sha1Ctx != NULL);\r | |
272 | \r | |
273 | Sha1Init (Sha1Ctx);\r | |
274 | Sha1Update (Sha1Ctx, Data, DataLen);\r | |
275 | Sha1Final (Sha1Ctx, (UINT8 *)Digest);\r | |
276 | \r | |
277 | FreePool (Sha1Ctx);\r | |
278 | \r | |
279 | return EFI_SUCCESS;\r | |
280 | }\r | |
281 | \r | |
0c18794e | 282 | /**\r |
283 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
284 | and build a GUIDed HOB recording the event which will be passed to the DXE phase and\r | |
285 | added into the Event Log.\r | |
286 | \r | |
3e07c656 JY |
287 | @param[in] This Indicates the calling context.\r |
288 | @param[in] Flags Bitmap providing additional information.\r | |
b3548d32 | 289 | @param[in] HashData Physical address of the start of the data buffer\r |
0c18794e | 290 | to be hashed, extended, and logged.\r |
291 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData.\r | |
b3548d32 LG |
292 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.\r |
293 | @param[in] NewEventData Pointer to the new event data.\r | |
0c18794e | 294 | \r |
295 | @retval EFI_SUCCESS Operation completed successfully.\r | |
296 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
297 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
298 | \r | |
299 | **/\r | |
300 | EFI_STATUS\r | |
3e07c656 | 301 | EFIAPI\r |
0c18794e | 302 | HashLogExtendEvent (\r |
3e07c656 JY |
303 | IN EDKII_TCG_PPI *This,\r |
304 | IN UINT64 Flags,\r | |
0c18794e | 305 | IN UINT8 *HashData,\r |
306 | IN UINTN HashDataLen,\r | |
0c18794e | 307 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r |
308 | IN UINT8 *NewEventData\r | |
309 | )\r | |
310 | {\r | |
311 | EFI_STATUS Status;\r | |
312 | VOID *HobData;\r | |
b3548d32 | 313 | \r |
6f785cfc JY |
314 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r |
315 | return EFI_DEVICE_ERROR;\r | |
316 | }\r | |
0c18794e | 317 | \r |
318 | HobData = NULL;\r | |
319 | if (HashDataLen != 0) {\r | |
320 | Status = TpmCommHashAll (\r | |
321 | HashData,\r | |
322 | HashDataLen,\r | |
323 | &NewEventHdr->Digest\r | |
324 | );\r | |
6f785cfc JY |
325 | if (EFI_ERROR (Status)) {\r |
326 | goto Done;\r | |
327 | }\r | |
0c18794e | 328 | }\r |
329 | \r | |
45500265 | 330 | Status = Tpm12Extend (\r |
0c18794e | 331 | &NewEventHdr->Digest,\r |
332 | NewEventHdr->PCRIndex,\r | |
333 | NULL\r | |
334 | );\r | |
6f785cfc JY |
335 | if (EFI_ERROR (Status)) {\r |
336 | goto Done;\r | |
337 | }\r | |
0c18794e | 338 | \r |
339 | HobData = BuildGuidHob (\r | |
340 | &gTcgEventEntryHobGuid,\r | |
341 | sizeof (*NewEventHdr) + NewEventHdr->EventSize\r | |
342 | );\r | |
343 | if (HobData == NULL) {\r | |
6f785cfc JY |
344 | Status = EFI_OUT_OF_RESOURCES;\r |
345 | goto Done;\r | |
0c18794e | 346 | }\r |
347 | \r | |
348 | CopyMem (HobData, NewEventHdr, sizeof (*NewEventHdr));\r | |
349 | HobData = (VOID *) ((UINT8*)HobData + sizeof (*NewEventHdr));\r | |
350 | CopyMem (HobData, NewEventData, NewEventHdr->EventSize);\r | |
6f785cfc JY |
351 | \r |
352 | Done:\r | |
353 | if ((Status == EFI_DEVICE_ERROR) || (Status == EFI_TIMEOUT)) {\r | |
e905fbb0 | 354 | DEBUG ((DEBUG_ERROR, "HashLogExtendEvent - %r. Disable TPM.\n", Status));\r |
6f785cfc JY |
355 | BuildGuidHob (&gTpmErrorHobGuid,0);\r |
356 | REPORT_STATUS_CODE (\r | |
357 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
358 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
359 | );\r | |
360 | Status = EFI_DEVICE_ERROR;\r | |
361 | }\r | |
362 | return Status;\r | |
0c18794e | 363 | }\r |
364 | \r | |
365 | /**\r | |
366 | Measure CRTM version.\r | |
367 | \r | |
368 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 369 | \r |
370 | @retval EFI_SUCCESS Operation completed successfully.\r | |
371 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
372 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
373 | \r | |
374 | **/\r | |
375 | EFI_STATUS\r | |
376 | EFIAPI\r | |
377 | MeasureCRTMVersion (\r | |
b558f8bc | 378 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 379 | )\r |
380 | {\r | |
381 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
382 | \r | |
383 | //\r | |
333a53ee | 384 | // Use FirmwareVersion string to represent CRTM version.\r |
0c18794e | 385 | // OEMs should get real CRTM version string and measure it.\r |
386 | //\r | |
387 | \r | |
388 | TcgEventHdr.PCRIndex = 0;\r | |
389 | TcgEventHdr.EventType = EV_S_CRTM_VERSION;\r | |
8cc06814 | 390 | TcgEventHdr.EventSize = (UINT32) StrSize((CHAR16*)PcdGetPtr (PcdFirmwareVersionString));\r |
333a53ee | 391 | \r |
0c18794e | 392 | return HashLogExtendEvent (\r |
3e07c656 JY |
393 | &mEdkiiTcgPpi,\r |
394 | 0,\r | |
333a53ee | 395 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString),\r |
0c18794e | 396 | TcgEventHdr.EventSize,\r |
0c18794e | 397 | &TcgEventHdr,\r |
333a53ee | 398 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString)\r |
0c18794e | 399 | );\r |
400 | }\r | |
401 | \r | |
402 | /**\r | |
b3548d32 LG |
403 | Measure FV image.\r |
404 | Add it into the measured FV list after the FV is measured successfully.\r | |
0c18794e | 405 | \r |
406 | @param[in] FvBase Base address of FV image.\r | |
407 | @param[in] FvLength Length of FV image.\r | |
408 | \r | |
b3548d32 | 409 | @retval EFI_SUCCESS Fv image is measured successfully\r |
0c18794e | 410 | or it has been already measured.\r |
411 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
412 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
413 | \r | |
414 | **/\r | |
415 | EFI_STATUS\r | |
416 | EFIAPI\r | |
417 | MeasureFvImage (\r | |
418 | IN EFI_PHYSICAL_ADDRESS FvBase,\r | |
419 | IN UINT64 FvLength\r | |
420 | )\r | |
421 | {\r | |
422 | UINT32 Index;\r | |
423 | EFI_STATUS Status;\r | |
424 | EFI_PLATFORM_FIRMWARE_BLOB FvBlob;\r | |
425 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
ffde2246 GJ |
426 | EFI_PHYSICAL_ADDRESS FvOrgBase;\r |
427 | EFI_PHYSICAL_ADDRESS FvDataBase;\r | |
428 | EFI_PEI_HOB_POINTERS Hob;\r | |
429 | EDKII_MIGRATED_FV_INFO *MigratedFvInfo;\r | |
0c18794e | 430 | \r |
c1d93242 JY |
431 | //\r |
432 | // Check if it is in Excluded FV list\r | |
433 | //\r | |
434 | if (mMeasurementExcludedFvPpi != NULL) {\r | |
435 | for (Index = 0; Index < mMeasurementExcludedFvPpi->Count; Index ++) {\r | |
436 | if (mMeasurementExcludedFvPpi->Fv[Index].FvBase == FvBase) {\r | |
437 | DEBUG ((DEBUG_INFO, "The FV which is excluded by TcgPei starts at: 0x%x\n", FvBase));\r | |
438 | DEBUG ((DEBUG_INFO, "The FV which is excluded by TcgPei has the size: 0x%x\n", FvLength));\r | |
439 | return EFI_SUCCESS;\r | |
440 | }\r | |
441 | }\r | |
442 | }\r | |
443 | \r | |
0c18794e | 444 | //\r |
445 | // Check whether FV is in the measured FV list.\r | |
446 | //\r | |
2aadc920 | 447 | for (Index = 0; Index < mMeasuredBaseFvIndex; Index ++) {\r |
448 | if (mMeasuredBaseFvInfo[Index].BlobBase == FvBase) {\r | |
0c18794e | 449 | return EFI_SUCCESS;\r |
450 | }\r | |
451 | }\r | |
b3548d32 | 452 | \r |
ffde2246 GJ |
453 | //\r |
454 | // Search the matched migration FV info\r | |
455 | //\r | |
456 | FvOrgBase = FvBase;\r | |
457 | FvDataBase = FvBase;\r | |
458 | Hob.Raw = GetFirstGuidHob (&gEdkiiMigratedFvInfoGuid);\r | |
459 | while (Hob.Raw != NULL) {\r | |
460 | MigratedFvInfo = GET_GUID_HOB_DATA (Hob);\r | |
461 | if ((MigratedFvInfo->FvNewBase == (UINT32) FvBase) && (MigratedFvInfo->FvLength == (UINT32) FvLength)) {\r | |
462 | //\r | |
463 | // Found the migrated FV info\r | |
464 | //\r | |
465 | FvOrgBase = (EFI_PHYSICAL_ADDRESS) (UINTN) MigratedFvInfo->FvOrgBase;\r | |
466 | FvDataBase = (EFI_PHYSICAL_ADDRESS) (UINTN) MigratedFvInfo->FvDataBase;\r | |
467 | break;\r | |
468 | }\r | |
469 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
470 | Hob.Raw = GetNextGuidHob (&gEdkiiMigratedFvInfoGuid, Hob.Raw);\r | |
471 | }\r | |
472 | \r | |
0c18794e | 473 | //\r |
474 | // Measure and record the FV to the TPM\r | |
475 | //\r | |
ffde2246 | 476 | FvBlob.BlobBase = FvOrgBase;\r |
0c18794e | 477 | FvBlob.BlobLength = FvLength;\r |
478 | \r | |
479 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei starts at: 0x%x\n", FvBlob.BlobBase));\r | |
480 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei has the size: 0x%x\n", FvBlob.BlobLength));\r | |
481 | \r | |
482 | TcgEventHdr.PCRIndex = 0;\r | |
483 | TcgEventHdr.EventType = EV_EFI_PLATFORM_FIRMWARE_BLOB;\r | |
484 | TcgEventHdr.EventSize = sizeof (FvBlob);\r | |
485 | \r | |
486 | Status = HashLogExtendEvent (\r | |
3e07c656 JY |
487 | &mEdkiiTcgPpi,\r |
488 | 0,\r | |
ffde2246 | 489 | (UINT8*) (UINTN) FvDataBase,\r |
0c18794e | 490 | (UINTN) FvBlob.BlobLength,\r |
0c18794e | 491 | &TcgEventHdr,\r |
492 | (UINT8*) &FvBlob\r | |
493 | );\r | |
0c18794e | 494 | \r |
495 | //\r | |
496 | // Add new FV into the measured FV list.\r | |
497 | //\r | |
aa8c6e2a SZ |
498 | if (mMeasuredBaseFvIndex >= mMeasuredMaxBaseFvIndex) {\r |
499 | mMeasuredBaseFvInfo = ReallocatePool (\r | |
500 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxBaseFvIndex,\r | |
501 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP),\r | |
502 | mMeasuredBaseFvInfo\r | |
503 | );\r | |
504 | ASSERT (mMeasuredBaseFvInfo != NULL);\r | |
505 | mMeasuredMaxBaseFvIndex = mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP;\r | |
0c18794e | 506 | }\r |
507 | \r | |
aa8c6e2a SZ |
508 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase;\r |
509 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength;\r | |
510 | mMeasuredBaseFvIndex++;\r | |
511 | \r | |
0c18794e | 512 | return Status;\r |
513 | }\r | |
514 | \r | |
515 | /**\r | |
516 | Measure main BIOS.\r | |
517 | \r | |
518 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 519 | \r |
520 | @retval EFI_SUCCESS Operation completed successfully.\r | |
521 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
522 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
523 | \r | |
524 | **/\r | |
525 | EFI_STATUS\r | |
526 | EFIAPI\r | |
527 | MeasureMainBios (\r | |
b558f8bc | 528 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 529 | )\r |
530 | {\r | |
531 | EFI_STATUS Status;\r | |
532 | UINT32 FvInstances;\r | |
533 | EFI_PEI_FV_HANDLE VolumeHandle;\r | |
534 | EFI_FV_INFO VolumeInfo;\r | |
535 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
b3548d32 | 536 | \r |
0c18794e | 537 | FvInstances = 0;\r |
538 | while (TRUE) {\r | |
539 | //\r | |
540 | // Traverse all firmware volume instances of Static Core Root of Trust for Measurement\r | |
541 | // (S-CRTM), this firmware volume measure policy can be modified/enhanced by special\r | |
542 | // platform for special CRTM TPM measuring.\r | |
543 | //\r | |
544 | Status = PeiServicesFfsFindNextVolume (FvInstances, &VolumeHandle);\r | |
545 | if (EFI_ERROR (Status)) {\r | |
546 | break;\r | |
547 | }\r | |
b3548d32 | 548 | \r |
0c18794e | 549 | //\r |
550 | // Measure and record the firmware volume that is dispatched by PeiCore\r | |
551 | //\r | |
552 | Status = PeiServicesFfsGetVolumeInfo (VolumeHandle, &VolumeInfo);\r | |
553 | ASSERT_EFI_ERROR (Status);\r | |
554 | //\r | |
555 | // Locate the corresponding FV_PPI according to founded FV's format guid\r | |
556 | //\r | |
557 | Status = PeiServicesLocatePpi (\r | |
b3548d32 LG |
558 | &VolumeInfo.FvFormat,\r |
559 | 0,\r | |
0c18794e | 560 | NULL,\r |
561 | (VOID**)&FvPpi\r | |
562 | );\r | |
563 | if (!EFI_ERROR (Status)) {\r | |
564 | MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) VolumeInfo.FvStart, VolumeInfo.FvSize);\r | |
565 | }\r | |
566 | \r | |
567 | FvInstances++;\r | |
568 | }\r | |
569 | \r | |
570 | return EFI_SUCCESS;\r | |
571 | }\r | |
572 | \r | |
573 | /**\r | |
dd40a1f8 | 574 | Measure and record the Firmware Volume Information once FvInfoPPI install.\r |
0c18794e | 575 | \r |
576 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
577 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
578 | @param[in] Ppi Address of the PPI that was installed.\r | |
579 | \r | |
580 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
581 | @return Others Fail to measure FV.\r | |
582 | \r | |
583 | **/\r | |
584 | EFI_STATUS\r | |
585 | EFIAPI\r | |
d6b926e7 | 586 | FirmwareVolumeInfoPpiNotifyCallback (\r |
0c18794e | 587 | IN EFI_PEI_SERVICES **PeiServices,\r |
588 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
589 | IN VOID *Ppi\r | |
590 | )\r | |
591 | {\r | |
592 | EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *Fv;\r | |
593 | EFI_STATUS Status;\r | |
594 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
387208ab | 595 | UINTN Index;\r |
0c18794e | 596 | \r |
597 | Fv = (EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *) Ppi;\r | |
598 | \r | |
599 | //\r | |
600 | // The PEI Core can not dispatch or load files from memory mapped FVs that do not support FvPpi.\r | |
601 | //\r | |
602 | Status = PeiServicesLocatePpi (\r | |
b3548d32 LG |
603 | &Fv->FvFormat,\r |
604 | 0,\r | |
0c18794e | 605 | NULL,\r |
606 | (VOID**)&FvPpi\r | |
607 | );\r | |
608 | if (EFI_ERROR (Status)) {\r | |
609 | return EFI_SUCCESS;\r | |
610 | }\r | |
b3548d32 | 611 | \r |
0c18794e | 612 | //\r |
613 | // This is an FV from an FFS file, and the parent FV must have already been measured,\r | |
2aadc920 | 614 | // No need to measure twice, so just record the FV and return\r |
0c18794e | 615 | //\r |
616 | if (Fv->ParentFvName != NULL || Fv->ParentFileName != NULL ) {\r | |
b3548d32 | 617 | \r |
aa8c6e2a SZ |
618 | if (mMeasuredChildFvIndex >= mMeasuredMaxChildFvIndex) {\r |
619 | mMeasuredChildFvInfo = ReallocatePool (\r | |
620 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxChildFvIndex,\r | |
621 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP),\r | |
622 | mMeasuredChildFvInfo\r | |
623 | );\r | |
624 | ASSERT (mMeasuredChildFvInfo != NULL);\r | |
625 | mMeasuredMaxChildFvIndex = mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP;\r | |
626 | }\r | |
627 | //\r | |
628 | // Check whether FV is in the measured child FV list.\r | |
629 | //\r | |
630 | for (Index = 0; Index < mMeasuredChildFvIndex; Index++) {\r | |
631 | if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) {\r | |
632 | return EFI_SUCCESS;\r | |
387208ab | 633 | }\r |
2aadc920 | 634 | }\r |
aa8c6e2a SZ |
635 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo;\r |
636 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize;\r | |
637 | mMeasuredChildFvIndex++;\r | |
0c18794e | 638 | return EFI_SUCCESS;\r |
639 | }\r | |
640 | \r | |
641 | return MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo, Fv->FvInfoSize);\r | |
642 | }\r | |
643 | \r | |
644 | /**\r | |
5a500332 | 645 | Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by corresponding PCDs.\r |
646 | And lock physical presence if needed.\r | |
0c18794e | 647 | \r |
648 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
649 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
650 | @param[in] Ppi Address of the PPI that was installed.\r | |
651 | \r | |
652 | @retval EFI_SUCCESS Operation completed successfully.\r | |
653 | @retval EFI_ABORTED physicalPresenceCMDEnable is locked.\r | |
654 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
655 | \r | |
656 | **/\r | |
657 | EFI_STATUS\r | |
658 | EFIAPI\r | |
659 | PhysicalPresencePpiNotifyCallback (\r | |
660 | IN EFI_PEI_SERVICES **PeiServices,\r | |
661 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
662 | IN VOID *Ppi\r | |
663 | )\r | |
664 | {\r | |
665 | EFI_STATUS Status;\r | |
45500265 | 666 | TPM_PERMANENT_FLAGS TpmPermanentFlags;\r |
0c18794e | 667 | PEI_LOCK_PHYSICAL_PRESENCE_PPI *LockPhysicalPresencePpi;\r |
5a500332 | 668 | TPM_PHYSICAL_PRESENCE PhysicalPresenceValue;\r |
0c18794e | 669 | \r |
45500265 | 670 | Status = Tpm12GetCapabilityFlagPermanent (&TpmPermanentFlags);\r |
5a500332 | 671 | if (EFI_ERROR (Status)) {\r |
672 | return Status;\r | |
0c18794e | 673 | }\r |
674 | \r | |
675 | //\r | |
5a500332 | 676 | // 1. Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by PCDs.\r |
0c18794e | 677 | //\r |
45500265 | 678 | if (PcdGetBool (PcdPhysicalPresenceLifetimeLock) && !TpmPermanentFlags.physicalPresenceLifetimeLock) {\r |
5a500332 | 679 | //\r |
b3548d32 | 680 | // Lock TPM LifetimeLock is required, and LifetimeLock is not locked yet.\r |
5a500332 | 681 | //\r |
682 | PhysicalPresenceValue = TPM_PHYSICAL_PRESENCE_LIFETIME_LOCK;\r | |
42b85551 | 683 | TpmPermanentFlags.physicalPresenceLifetimeLock = TRUE;\r |
5a500332 | 684 | \r |
685 | if (PcdGetBool (PcdPhysicalPresenceCmdEnable)) {\r | |
686 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_ENABLE;\r | |
45500265 | 687 | TpmPermanentFlags.physicalPresenceCMDEnable = TRUE;\r |
5a500332 | 688 | } else {\r |
689 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_DISABLE;\r | |
45500265 | 690 | TpmPermanentFlags.physicalPresenceCMDEnable = FALSE;\r |
5a500332 | 691 | }\r |
0c18794e | 692 | \r |
5a500332 | 693 | if (PcdGetBool (PcdPhysicalPresenceHwEnable)) {\r |
694 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_ENABLE;\r | |
695 | } else {\r | |
696 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_DISABLE;\r | |
b3548d32 LG |
697 | }\r |
698 | \r | |
45500265 | 699 | Status = Tpm12PhysicalPresence (\r |
5a500332 | 700 | PhysicalPresenceValue\r |
701 | );\r | |
702 | if (EFI_ERROR (Status)) {\r | |
703 | return Status;\r | |
704 | }\r | |
705 | }\r | |
b3548d32 | 706 | \r |
5a500332 | 707 | //\r |
708 | // 2. Lock physical presence if it is required.\r | |
709 | //\r | |
710 | LockPhysicalPresencePpi = (PEI_LOCK_PHYSICAL_PRESENCE_PPI *) Ppi;\r | |
711 | if (!LockPhysicalPresencePpi->LockPhysicalPresence ((CONST EFI_PEI_SERVICES**) PeiServices)) {\r | |
712 | return EFI_SUCCESS;\r | |
0c18794e | 713 | }\r |
714 | \r | |
45500265 MK |
715 | if (!TpmPermanentFlags.physicalPresenceCMDEnable) {\r |
716 | if (TpmPermanentFlags.physicalPresenceLifetimeLock) {\r | |
0c18794e | 717 | //\r |
718 | // physicalPresenceCMDEnable is locked, can't change.\r | |
719 | //\r | |
720 | return EFI_ABORTED;\r | |
721 | }\r | |
722 | \r | |
723 | //\r | |
724 | // Enable physical presence command\r | |
725 | // It is necessary in order to lock physical presence\r | |
726 | //\r | |
45500265 | 727 | Status = Tpm12PhysicalPresence (\r |
0c18794e | 728 | TPM_PHYSICAL_PRESENCE_CMD_ENABLE\r |
729 | );\r | |
730 | if (EFI_ERROR (Status)) {\r | |
731 | return Status;\r | |
732 | }\r | |
733 | }\r | |
734 | \r | |
735 | //\r | |
736 | // Lock physical presence\r | |
b3548d32 | 737 | //\r |
45500265 | 738 | Status = Tpm12PhysicalPresence (\r |
0c18794e | 739 | TPM_PHYSICAL_PRESENCE_LOCK\r |
740 | );\r | |
741 | return Status;\r | |
742 | }\r | |
743 | \r | |
744 | /**\r | |
d6b926e7 | 745 | Check if TPM chip is activated or not.\r |
0c18794e | 746 | \r |
747 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 748 | \r |
749 | @retval TRUE TPM is activated.\r | |
750 | @retval FALSE TPM is deactivated.\r | |
751 | \r | |
752 | **/\r | |
753 | BOOLEAN\r | |
0c18794e | 754 | IsTpmUsable (\r |
45500265 | 755 | VOID\r |
0c18794e | 756 | )\r |
757 | {\r | |
45500265 MK |
758 | EFI_STATUS Status;\r |
759 | TPM_PERMANENT_FLAGS TpmPermanentFlags;\r | |
0c18794e | 760 | \r |
45500265 | 761 | Status = Tpm12GetCapabilityFlagPermanent (&TpmPermanentFlags);\r |
0c18794e | 762 | if (EFI_ERROR (Status)) {\r |
763 | return FALSE;\r | |
764 | }\r | |
45500265 | 765 | return (BOOLEAN)(!TpmPermanentFlags.deactivated);\r |
0c18794e | 766 | }\r |
767 | \r | |
768 | /**\r | |
769 | Do measurement after memory is ready.\r | |
770 | \r | |
771 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
772 | \r | |
773 | @retval EFI_SUCCESS Operation completed successfully.\r | |
774 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
775 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
776 | \r | |
777 | **/\r | |
778 | EFI_STATUS\r | |
779 | EFIAPI\r | |
780 | PeimEntryMP (\r | |
781 | IN EFI_PEI_SERVICES **PeiServices\r | |
782 | )\r | |
783 | {\r | |
784 | EFI_STATUS Status;\r | |
0c18794e | 785 | \r |
c1d93242 | 786 | Status = PeiServicesLocatePpi (\r |
b3548d32 LG |
787 | &gEfiPeiFirmwareVolumeInfoMeasurementExcludedPpiGuid,\r |
788 | 0,\r | |
c1d93242 JY |
789 | NULL,\r |
790 | (VOID**)&mMeasurementExcludedFvPpi\r | |
791 | );\r | |
792 | // Do not check status, because it is optional\r | |
793 | \r | |
b558f8bc | 794 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 795 | if (EFI_ERROR (Status)) {\r |
796 | return Status;\r | |
797 | }\r | |
798 | \r | |
45500265 | 799 | if (IsTpmUsable ()) {\r |
c1d93242 | 800 | if (PcdGet8 (PcdTpmScrtmPolicy) == 1) {\r |
b558f8bc | 801 | Status = MeasureCRTMVersion (PeiServices);\r |
c1d93242 | 802 | }\r |
0c18794e | 803 | \r |
b558f8bc | 804 | Status = MeasureMainBios (PeiServices);\r |
b3548d32 | 805 | }\r |
0c18794e | 806 | \r |
807 | //\r | |
808 | // Post callbacks:\r | |
809 | // 1). for the FvInfoPpi services to measure and record\r | |
810 | // the additional Fvs to TPM\r | |
b3548d32 | 811 | // 2). for the OperatorPresencePpi service to determine whether to\r |
0c18794e | 812 | // lock the TPM\r |
813 | //\r | |
814 | Status = PeiServicesNotifyPpi (&mNotifyList[0]);\r | |
815 | ASSERT_EFI_ERROR (Status);\r | |
816 | \r | |
3e07c656 JY |
817 | //\r |
818 | // install Tcg Services\r | |
819 | //\r | |
820 | Status = PeiServicesInstallPpi (&mTcgPpiList);\r | |
821 | ASSERT_EFI_ERROR (Status);\r | |
822 | \r | |
0c18794e | 823 | return Status;\r |
824 | }\r | |
825 | \r | |
826 | /**\r | |
827 | Entry point of this module.\r | |
828 | \r | |
829 | @param[in] FileHandle Handle of the file being invoked.\r | |
830 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
831 | \r | |
832 | @return Status.\r | |
833 | \r | |
834 | **/\r | |
835 | EFI_STATUS\r | |
836 | EFIAPI\r | |
837 | PeimEntryMA (\r | |
838 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
839 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
840 | )\r | |
841 | {\r | |
842 | EFI_STATUS Status;\r | |
83a276f6 | 843 | EFI_STATUS Status2;\r |
0c18794e | 844 | EFI_BOOT_MODE BootMode;\r |
0c18794e | 845 | \r |
c1d93242 | 846 | if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)){\r |
e905fbb0 | 847 | DEBUG ((DEBUG_ERROR, "No TPM12 instance required!\n"));\r |
c1d93242 JY |
848 | return EFI_UNSUPPORTED;\r |
849 | }\r | |
850 | \r | |
3dd05ac3 | 851 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r |
e905fbb0 | 852 | DEBUG ((DEBUG_ERROR, "TPM error!\n"));\r |
3dd05ac3 JY |
853 | return EFI_DEVICE_ERROR;\r |
854 | }\r | |
855 | \r | |
055c829c | 856 | //\r |
857 | // Initialize TPM device\r | |
858 | //\r | |
859 | Status = PeiServicesGetBootMode (&BootMode);\r | |
860 | ASSERT_EFI_ERROR (Status);\r | |
861 | \r | |
862 | //\r | |
863 | // In S3 path, skip shadow logic. no measurement is required\r | |
864 | //\r | |
865 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
866 | Status = (**PeiServices).RegisterForShadow(FileHandle);\r | |
867 | if (Status == EFI_ALREADY_STARTED) {\r | |
868 | mImageInMemory = TRUE;\r | |
869 | } else if (Status == EFI_NOT_FOUND) {\r | |
870 | ASSERT_EFI_ERROR (Status);\r | |
871 | }\r | |
0c18794e | 872 | }\r |
873 | \r | |
874 | if (!mImageInMemory) {\r | |
b558f8bc | 875 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 876 | if (EFI_ERROR (Status)) {\r |
877 | DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));\r | |
83a276f6 | 878 | goto Done;\r |
0c18794e | 879 | }\r |
880 | \r | |
c1d93242 | 881 | if (PcdGet8 (PcdTpmInitializationPolicy) == 1) {\r |
45500265 MK |
882 | if (BootMode == BOOT_ON_S3_RESUME) {\r |
883 | Status = Tpm12Startup (TPM_ST_STATE);\r | |
884 | } else {\r | |
885 | Status = Tpm12Startup (TPM_ST_CLEAR);\r | |
886 | }\r | |
c1d93242 | 887 | if (EFI_ERROR (Status) ) {\r |
83a276f6 | 888 | goto Done;\r |
c1d93242 | 889 | }\r |
0c18794e | 890 | }\r |
6f6c7857 | 891 | \r |
892 | //\r | |
893 | // TpmSelfTest is optional on S3 path, skip it to save S3 time\r | |
894 | //\r | |
895 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
45500265 | 896 | Status = Tpm12ContinueSelfTest ();\r |
6f6c7857 | 897 | if (EFI_ERROR (Status)) {\r |
83a276f6 | 898 | goto Done;\r |
6f6c7857 | 899 | }\r |
0c18794e | 900 | }\r |
6f6c7857 | 901 | \r |
83a276f6 | 902 | //\r |
dd40a1f8 | 903 | // Only install TpmInitializedPpi on success\r |
83a276f6 | 904 | //\r |
0c18794e | 905 | Status = PeiServicesInstallPpi (&mTpmInitializedPpiList);\r |
906 | ASSERT_EFI_ERROR (Status);\r | |
907 | }\r | |
908 | \r | |
909 | if (mImageInMemory) {\r | |
910 | Status = PeimEntryMP ((EFI_PEI_SERVICES**)PeiServices);\r | |
83a276f6 | 911 | return Status;\r |
0c18794e | 912 | }\r |
913 | \r | |
83a276f6 | 914 | Done:\r |
3dd05ac3 | 915 | if (EFI_ERROR (Status)) {\r |
e905fbb0 | 916 | DEBUG ((DEBUG_ERROR, "TPM error! Build Hob\n"));\r |
3dd05ac3 JY |
917 | BuildGuidHob (&gTpmErrorHobGuid,0);\r |
918 | REPORT_STATUS_CODE (\r | |
919 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
920 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
921 | );\r | |
922 | }\r | |
83a276f6 | 923 | //\r |
dd40a1f8 | 924 | // Always install TpmInitializationDonePpi no matter success or fail.\r |
83a276f6 JY |
925 | // Other driver can know TPM initialization state by TpmInitializedPpi.\r |
926 | //\r | |
927 | Status2 = PeiServicesInstallPpi (&mTpmInitializationDonePpiList);\r | |
928 | ASSERT_EFI_ERROR (Status2);\r | |
929 | \r | |
0c18794e | 930 | return Status;\r |
931 | }\r |