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0c18794e | 1 | /** @file\r |
2 | Initialize TPM device and measure FVs before handing off control to DXE.\r | |
3 | \r | |
b3548d32 LG |
4 | Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
0c18794e | 8 | http://opensource.org/licenses/bsd-license.php\r |
9 | \r | |
b3548d32 | 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
0c18794e | 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <PiPei.h>\r | |
16 | \r | |
17 | #include <IndustryStandard/Tpm12.h>\r | |
18 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
19 | #include <Ppi/FirmwareVolumeInfo.h>\r | |
c7935105 | 20 | #include <Ppi/FirmwareVolumeInfo2.h>\r |
0c18794e | 21 | #include <Ppi/LockPhysicalPresence.h>\r |
22 | #include <Ppi/TpmInitialized.h>\r | |
23 | #include <Ppi/FirmwareVolume.h>\r | |
2aadc920 | 24 | #include <Ppi/EndOfPeiPhase.h>\r |
c1d93242 | 25 | #include <Ppi/FirmwareVolumeInfoMeasurementExcluded.h>\r |
2aadc920 | 26 | \r |
0c18794e | 27 | #include <Guid/TcgEventHob.h>\r |
0758c830 | 28 | #include <Guid/MeasuredFvHob.h>\r |
c1d93242 | 29 | #include <Guid/TpmInstance.h>\r |
2aadc920 | 30 | \r |
0c18794e | 31 | #include <Library/DebugLib.h>\r |
32 | #include <Library/BaseMemoryLib.h>\r | |
33 | #include <Library/PeiServicesLib.h>\r | |
34 | #include <Library/PeimEntryPoint.h>\r | |
0c18794e | 35 | #include <Library/HobLib.h>\r |
36 | #include <Library/PcdLib.h>\r | |
37 | #include <Library/PeiServicesTablePointerLib.h>\r | |
333a53ee | 38 | #include <Library/BaseLib.h>\r |
b5412eac | 39 | #include <Library/MemoryAllocationLib.h>\r |
6f785cfc | 40 | #include <Library/ReportStatusCodeLib.h>\r |
45500265 MK |
41 | #include <Library/Tpm12DeviceLib.h>\r |
42 | #include <Library/Tpm12CommandLib.h>\r | |
43 | #include <Library/BaseCryptLib.h>\r | |
d9c5beb1 | 44 | #include <Library/PerformanceLib.h>\r |
0c18794e | 45 | \r |
46 | BOOLEAN mImageInMemory = FALSE;\r | |
47 | \r | |
48 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializedPpiList = {\r | |
49 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
50 | &gPeiTpmInitializedPpiGuid,\r | |
51 | NULL\r | |
52 | };\r | |
53 | \r | |
83a276f6 JY |
54 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializationDonePpiList = {\r |
55 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
56 | &gPeiTpmInitializationDonePpiGuid,\r | |
57 | NULL\r | |
58 | };\r | |
59 | \r | |
aa8c6e2a SZ |
60 | //\r |
61 | // Number of firmware blobs to grow by each time we run out of room\r | |
62 | //\r | |
63 | #define FIRMWARE_BLOB_GROWTH_STEP 4\r | |
64 | \r | |
b5412eac | 65 | EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredBaseFvInfo;\r |
aa8c6e2a | 66 | UINT32 mMeasuredMaxBaseFvIndex = 0;\r |
2aadc920 | 67 | UINT32 mMeasuredBaseFvIndex = 0;\r |
68 | \r | |
b5412eac | 69 | EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredChildFvInfo;\r |
aa8c6e2a | 70 | UINT32 mMeasuredMaxChildFvIndex = 0;\r |
2aadc920 | 71 | UINT32 mMeasuredChildFvIndex = 0;\r |
72 | \r | |
c1d93242 JY |
73 | EFI_PEI_FIRMWARE_VOLUME_INFO_MEASUREMENT_EXCLUDED_PPI *mMeasurementExcludedFvPpi;\r |
74 | \r | |
0c18794e | 75 | /**\r |
76 | Lock physical presence if needed.\r | |
77 | \r | |
78 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
79 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
80 | @param[in] Ppi Address of the PPI that was installed.\r | |
81 | \r | |
82 | @retval EFI_SUCCESS Operation completed successfully.\r | |
83 | \r | |
84 | **/\r | |
85 | EFI_STATUS\r | |
86 | EFIAPI\r | |
87 | PhysicalPresencePpiNotifyCallback (\r | |
88 | IN EFI_PEI_SERVICES **PeiServices,\r | |
89 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
90 | IN VOID *Ppi\r | |
91 | );\r | |
92 | \r | |
93 | /**\r | |
94 | Measure and record the Firmware Volum Information once FvInfoPPI install.\r | |
95 | \r | |
96 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
97 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
98 | @param[in] Ppi Address of the PPI that was installed.\r | |
99 | \r | |
100 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
101 | @return Others Fail to measure FV.\r | |
102 | \r | |
103 | **/\r | |
104 | EFI_STATUS\r | |
105 | EFIAPI\r | |
106 | FirmwareVolmeInfoPpiNotifyCallback (\r | |
107 | IN EFI_PEI_SERVICES **PeiServices,\r | |
108 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
109 | IN VOID *Ppi\r | |
110 | );\r | |
111 | \r | |
2aadc920 | 112 | /**\r |
113 | Record all measured Firmware Volum Information into a Guid Hob\r | |
114 | \r | |
115 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
116 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
117 | @param[in] Ppi Address of the PPI that was installed.\r | |
118 | \r | |
119 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
120 | @return Others Fail to measure FV.\r | |
121 | \r | |
122 | **/\r | |
123 | EFI_STATUS\r | |
124 | EFIAPI\r | |
125 | EndofPeiSignalNotifyCallBack (\r | |
126 | IN EFI_PEI_SERVICES **PeiServices,\r | |
127 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
128 | IN VOID *Ppi\r | |
129 | );\r | |
130 | \r | |
0c18794e | 131 | EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList[] = {\r |
132 | {\r | |
133 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
134 | &gPeiLockPhysicalPresencePpiGuid,\r | |
135 | PhysicalPresencePpiNotifyCallback\r | |
136 | },\r | |
137 | {\r | |
2aadc920 | 138 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
0c18794e | 139 | &gEfiPeiFirmwareVolumeInfoPpiGuid,\r |
b3548d32 | 140 | FirmwareVolmeInfoPpiNotifyCallback\r |
2aadc920 | 141 | },\r |
c7935105 SZ |
142 | {\r |
143 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
144 | &gEfiPeiFirmwareVolumeInfo2PpiGuid,\r | |
b3548d32 | 145 | FirmwareVolmeInfoPpiNotifyCallback\r |
c7935105 | 146 | },\r |
2aadc920 | 147 | {\r |
148 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
149 | &gEfiEndOfPeiSignalPpiGuid,\r | |
150 | EndofPeiSignalNotifyCallBack\r | |
0c18794e | 151 | }\r |
152 | };\r | |
153 | \r | |
2aadc920 | 154 | /**\r |
155 | Record all measured Firmware Volum Information into a Guid Hob\r | |
b3548d32 | 156 | Guid Hob payload layout is\r |
2aadc920 | 157 | \r |
158 | UINT32 *************************** FIRMWARE_BLOB number\r | |
159 | EFI_PLATFORM_FIRMWARE_BLOB******** BLOB Array\r | |
160 | \r | |
161 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
162 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
163 | @param[in] Ppi Address of the PPI that was installed.\r | |
164 | \r | |
165 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
166 | @return Others Fail to measure FV.\r | |
167 | \r | |
168 | **/\r | |
169 | EFI_STATUS\r | |
170 | EFIAPI\r | |
171 | EndofPeiSignalNotifyCallBack (\r | |
172 | IN EFI_PEI_SERVICES **PeiServices,\r | |
173 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
174 | IN VOID *Ppi\r | |
175 | )\r | |
b3548d32 | 176 | {\r |
0758c830 | 177 | MEASURED_HOB_DATA *MeasuredHobData;\r |
2aadc920 | 178 | \r |
0758c830 | 179 | MeasuredHobData = NULL;\r |
2aadc920 | 180 | \r |
d9c5beb1 DB |
181 | PERF_CALLBACK_BEGIN (&gEfiEndOfPeiSignalPpiGuid);\r |
182 | \r | |
2aadc920 | 183 | //\r |
b3548d32 | 184 | // Create a Guid hob to save all measured Fv\r |
2aadc920 | 185 | //\r |
0758c830 | 186 | MeasuredHobData = BuildGuidHob(\r |
187 | &gMeasuredFvHobGuid,\r | |
188 | sizeof(UINTN) + sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex + mMeasuredChildFvIndex)\r | |
189 | );\r | |
2aadc920 | 190 | \r |
0758c830 | 191 | if (MeasuredHobData != NULL){\r |
2aadc920 | 192 | //\r |
193 | // Save measured FV info enty number\r | |
194 | //\r | |
0758c830 | 195 | MeasuredHobData->Num = mMeasuredBaseFvIndex + mMeasuredChildFvIndex;\r |
2aadc920 | 196 | \r |
2aadc920 | 197 | //\r |
198 | // Save measured base Fv info\r | |
199 | //\r | |
0758c830 | 200 | CopyMem (MeasuredHobData->MeasuredFvBuf, mMeasuredBaseFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex));\r |
2aadc920 | 201 | \r |
2aadc920 | 202 | //\r |
203 | // Save measured child Fv info\r | |
204 | //\r | |
0758c830 | 205 | CopyMem (&MeasuredHobData->MeasuredFvBuf[mMeasuredBaseFvIndex] , mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));\r |
2aadc920 | 206 | }\r |
207 | \r | |
d9c5beb1 DB |
208 | PERF_CALLBACK_END (&gEfiEndOfPeiSignalPpiGuid);\r |
209 | \r | |
2aadc920 | 210 | return EFI_SUCCESS;\r |
211 | }\r | |
0c18794e | 212 | \r |
45500265 MK |
213 | /**\r |
214 | Single function calculates SHA1 digest value for all raw data. It\r | |
215 | combines Sha1Init(), Sha1Update() and Sha1Final().\r | |
216 | \r | |
217 | @param[in] Data Raw data to be digested.\r | |
218 | @param[in] DataLen Size of the raw data.\r | |
219 | @param[out] Digest Pointer to a buffer that stores the final digest.\r | |
220 | \r | |
221 | @retval EFI_SUCCESS Always successfully calculate the final digest.\r | |
222 | **/\r | |
223 | EFI_STATUS\r | |
224 | EFIAPI\r | |
225 | TpmCommHashAll (\r | |
226 | IN CONST UINT8 *Data,\r | |
227 | IN UINTN DataLen,\r | |
228 | OUT TPM_DIGEST *Digest\r | |
229 | )\r | |
230 | {\r | |
231 | VOID *Sha1Ctx;\r | |
232 | UINTN CtxSize;\r | |
233 | \r | |
234 | CtxSize = Sha1GetContextSize ();\r | |
235 | Sha1Ctx = AllocatePool (CtxSize);\r | |
236 | ASSERT (Sha1Ctx != NULL);\r | |
237 | \r | |
238 | Sha1Init (Sha1Ctx);\r | |
239 | Sha1Update (Sha1Ctx, Data, DataLen);\r | |
240 | Sha1Final (Sha1Ctx, (UINT8 *)Digest);\r | |
241 | \r | |
242 | FreePool (Sha1Ctx);\r | |
243 | \r | |
244 | return EFI_SUCCESS;\r | |
245 | }\r | |
246 | \r | |
0c18794e | 247 | /**\r |
248 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
249 | and build a GUIDed HOB recording the event which will be passed to the DXE phase and\r | |
250 | added into the Event Log.\r | |
251 | \r | |
252 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
b3548d32 | 253 | @param[in] HashData Physical address of the start of the data buffer\r |
0c18794e | 254 | to be hashed, extended, and logged.\r |
255 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData.\r | |
b3548d32 LG |
256 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.\r |
257 | @param[in] NewEventData Pointer to the new event data.\r | |
0c18794e | 258 | \r |
259 | @retval EFI_SUCCESS Operation completed successfully.\r | |
260 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
261 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
262 | \r | |
263 | **/\r | |
264 | EFI_STATUS\r | |
265 | HashLogExtendEvent (\r | |
266 | IN EFI_PEI_SERVICES **PeiServices,\r | |
267 | IN UINT8 *HashData,\r | |
268 | IN UINTN HashDataLen,\r | |
0c18794e | 269 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r |
270 | IN UINT8 *NewEventData\r | |
271 | )\r | |
272 | {\r | |
273 | EFI_STATUS Status;\r | |
274 | VOID *HobData;\r | |
b3548d32 | 275 | \r |
6f785cfc JY |
276 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r |
277 | return EFI_DEVICE_ERROR;\r | |
278 | }\r | |
0c18794e | 279 | \r |
280 | HobData = NULL;\r | |
281 | if (HashDataLen != 0) {\r | |
282 | Status = TpmCommHashAll (\r | |
283 | HashData,\r | |
284 | HashDataLen,\r | |
285 | &NewEventHdr->Digest\r | |
286 | );\r | |
6f785cfc JY |
287 | if (EFI_ERROR (Status)) {\r |
288 | goto Done;\r | |
289 | }\r | |
0c18794e | 290 | }\r |
291 | \r | |
45500265 | 292 | Status = Tpm12Extend (\r |
0c18794e | 293 | &NewEventHdr->Digest,\r |
294 | NewEventHdr->PCRIndex,\r | |
295 | NULL\r | |
296 | );\r | |
6f785cfc JY |
297 | if (EFI_ERROR (Status)) {\r |
298 | goto Done;\r | |
299 | }\r | |
0c18794e | 300 | \r |
301 | HobData = BuildGuidHob (\r | |
302 | &gTcgEventEntryHobGuid,\r | |
303 | sizeof (*NewEventHdr) + NewEventHdr->EventSize\r | |
304 | );\r | |
305 | if (HobData == NULL) {\r | |
6f785cfc JY |
306 | Status = EFI_OUT_OF_RESOURCES;\r |
307 | goto Done;\r | |
0c18794e | 308 | }\r |
309 | \r | |
310 | CopyMem (HobData, NewEventHdr, sizeof (*NewEventHdr));\r | |
311 | HobData = (VOID *) ((UINT8*)HobData + sizeof (*NewEventHdr));\r | |
312 | CopyMem (HobData, NewEventData, NewEventHdr->EventSize);\r | |
6f785cfc JY |
313 | \r |
314 | Done:\r | |
315 | if ((Status == EFI_DEVICE_ERROR) || (Status == EFI_TIMEOUT)) {\r | |
316 | DEBUG ((EFI_D_ERROR, "HashLogExtendEvent - %r. Disable TPM.\n", Status));\r | |
317 | BuildGuidHob (&gTpmErrorHobGuid,0);\r | |
318 | REPORT_STATUS_CODE (\r | |
319 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
320 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
321 | );\r | |
322 | Status = EFI_DEVICE_ERROR;\r | |
323 | }\r | |
324 | return Status;\r | |
0c18794e | 325 | }\r |
326 | \r | |
327 | /**\r | |
328 | Measure CRTM version.\r | |
329 | \r | |
330 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 331 | \r |
332 | @retval EFI_SUCCESS Operation completed successfully.\r | |
333 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
334 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
335 | \r | |
336 | **/\r | |
337 | EFI_STATUS\r | |
338 | EFIAPI\r | |
339 | MeasureCRTMVersion (\r | |
b558f8bc | 340 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 341 | )\r |
342 | {\r | |
343 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
344 | \r | |
345 | //\r | |
333a53ee | 346 | // Use FirmwareVersion string to represent CRTM version.\r |
0c18794e | 347 | // OEMs should get real CRTM version string and measure it.\r |
348 | //\r | |
349 | \r | |
350 | TcgEventHdr.PCRIndex = 0;\r | |
351 | TcgEventHdr.EventType = EV_S_CRTM_VERSION;\r | |
8cc06814 | 352 | TcgEventHdr.EventSize = (UINT32) StrSize((CHAR16*)PcdGetPtr (PcdFirmwareVersionString));\r |
333a53ee | 353 | \r |
0c18794e | 354 | return HashLogExtendEvent (\r |
355 | PeiServices,\r | |
333a53ee | 356 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString),\r |
0c18794e | 357 | TcgEventHdr.EventSize,\r |
0c18794e | 358 | &TcgEventHdr,\r |
333a53ee | 359 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString)\r |
0c18794e | 360 | );\r |
361 | }\r | |
362 | \r | |
363 | /**\r | |
b3548d32 LG |
364 | Measure FV image.\r |
365 | Add it into the measured FV list after the FV is measured successfully.\r | |
0c18794e | 366 | \r |
367 | @param[in] FvBase Base address of FV image.\r | |
368 | @param[in] FvLength Length of FV image.\r | |
369 | \r | |
b3548d32 | 370 | @retval EFI_SUCCESS Fv image is measured successfully\r |
0c18794e | 371 | or it has been already measured.\r |
372 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
373 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
374 | \r | |
375 | **/\r | |
376 | EFI_STATUS\r | |
377 | EFIAPI\r | |
378 | MeasureFvImage (\r | |
379 | IN EFI_PHYSICAL_ADDRESS FvBase,\r | |
380 | IN UINT64 FvLength\r | |
381 | )\r | |
382 | {\r | |
383 | UINT32 Index;\r | |
384 | EFI_STATUS Status;\r | |
385 | EFI_PLATFORM_FIRMWARE_BLOB FvBlob;\r | |
386 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
0c18794e | 387 | \r |
c1d93242 JY |
388 | //\r |
389 | // Check if it is in Excluded FV list\r | |
390 | //\r | |
391 | if (mMeasurementExcludedFvPpi != NULL) {\r | |
392 | for (Index = 0; Index < mMeasurementExcludedFvPpi->Count; Index ++) {\r | |
393 | if (mMeasurementExcludedFvPpi->Fv[Index].FvBase == FvBase) {\r | |
394 | DEBUG ((DEBUG_INFO, "The FV which is excluded by TcgPei starts at: 0x%x\n", FvBase));\r | |
395 | DEBUG ((DEBUG_INFO, "The FV which is excluded by TcgPei has the size: 0x%x\n", FvLength));\r | |
396 | return EFI_SUCCESS;\r | |
397 | }\r | |
398 | }\r | |
399 | }\r | |
400 | \r | |
0c18794e | 401 | //\r |
402 | // Check whether FV is in the measured FV list.\r | |
403 | //\r | |
2aadc920 | 404 | for (Index = 0; Index < mMeasuredBaseFvIndex; Index ++) {\r |
405 | if (mMeasuredBaseFvInfo[Index].BlobBase == FvBase) {\r | |
0c18794e | 406 | return EFI_SUCCESS;\r |
407 | }\r | |
408 | }\r | |
b3548d32 | 409 | \r |
0c18794e | 410 | //\r |
411 | // Measure and record the FV to the TPM\r | |
412 | //\r | |
413 | FvBlob.BlobBase = FvBase;\r | |
414 | FvBlob.BlobLength = FvLength;\r | |
415 | \r | |
416 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei starts at: 0x%x\n", FvBlob.BlobBase));\r | |
417 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei has the size: 0x%x\n", FvBlob.BlobLength));\r | |
418 | \r | |
419 | TcgEventHdr.PCRIndex = 0;\r | |
420 | TcgEventHdr.EventType = EV_EFI_PLATFORM_FIRMWARE_BLOB;\r | |
421 | TcgEventHdr.EventSize = sizeof (FvBlob);\r | |
422 | \r | |
423 | Status = HashLogExtendEvent (\r | |
424 | (EFI_PEI_SERVICES **) GetPeiServicesTablePointer(),\r | |
425 | (UINT8*) (UINTN) FvBlob.BlobBase,\r | |
426 | (UINTN) FvBlob.BlobLength,\r | |
0c18794e | 427 | &TcgEventHdr,\r |
428 | (UINT8*) &FvBlob\r | |
429 | );\r | |
0c18794e | 430 | \r |
431 | //\r | |
432 | // Add new FV into the measured FV list.\r | |
433 | //\r | |
aa8c6e2a SZ |
434 | if (mMeasuredBaseFvIndex >= mMeasuredMaxBaseFvIndex) {\r |
435 | mMeasuredBaseFvInfo = ReallocatePool (\r | |
436 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxBaseFvIndex,\r | |
437 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP),\r | |
438 | mMeasuredBaseFvInfo\r | |
439 | );\r | |
440 | ASSERT (mMeasuredBaseFvInfo != NULL);\r | |
441 | mMeasuredMaxBaseFvIndex = mMeasuredMaxBaseFvIndex + FIRMWARE_BLOB_GROWTH_STEP;\r | |
0c18794e | 442 | }\r |
443 | \r | |
aa8c6e2a SZ |
444 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase;\r |
445 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength;\r | |
446 | mMeasuredBaseFvIndex++;\r | |
447 | \r | |
0c18794e | 448 | return Status;\r |
449 | }\r | |
450 | \r | |
451 | /**\r | |
452 | Measure main BIOS.\r | |
453 | \r | |
454 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 455 | \r |
456 | @retval EFI_SUCCESS Operation completed successfully.\r | |
457 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
458 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
459 | \r | |
460 | **/\r | |
461 | EFI_STATUS\r | |
462 | EFIAPI\r | |
463 | MeasureMainBios (\r | |
b558f8bc | 464 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 465 | )\r |
466 | {\r | |
467 | EFI_STATUS Status;\r | |
468 | UINT32 FvInstances;\r | |
469 | EFI_PEI_FV_HANDLE VolumeHandle;\r | |
470 | EFI_FV_INFO VolumeInfo;\r | |
471 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
b3548d32 | 472 | \r |
0c18794e | 473 | FvInstances = 0;\r |
474 | while (TRUE) {\r | |
475 | //\r | |
476 | // Traverse all firmware volume instances of Static Core Root of Trust for Measurement\r | |
477 | // (S-CRTM), this firmware volume measure policy can be modified/enhanced by special\r | |
478 | // platform for special CRTM TPM measuring.\r | |
479 | //\r | |
480 | Status = PeiServicesFfsFindNextVolume (FvInstances, &VolumeHandle);\r | |
481 | if (EFI_ERROR (Status)) {\r | |
482 | break;\r | |
483 | }\r | |
b3548d32 | 484 | \r |
0c18794e | 485 | //\r |
486 | // Measure and record the firmware volume that is dispatched by PeiCore\r | |
487 | //\r | |
488 | Status = PeiServicesFfsGetVolumeInfo (VolumeHandle, &VolumeInfo);\r | |
489 | ASSERT_EFI_ERROR (Status);\r | |
490 | //\r | |
491 | // Locate the corresponding FV_PPI according to founded FV's format guid\r | |
492 | //\r | |
493 | Status = PeiServicesLocatePpi (\r | |
b3548d32 LG |
494 | &VolumeInfo.FvFormat,\r |
495 | 0,\r | |
0c18794e | 496 | NULL,\r |
497 | (VOID**)&FvPpi\r | |
498 | );\r | |
499 | if (!EFI_ERROR (Status)) {\r | |
500 | MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) VolumeInfo.FvStart, VolumeInfo.FvSize);\r | |
501 | }\r | |
502 | \r | |
503 | FvInstances++;\r | |
504 | }\r | |
505 | \r | |
506 | return EFI_SUCCESS;\r | |
507 | }\r | |
508 | \r | |
509 | /**\r | |
510 | Measure and record the Firmware Volum Information once FvInfoPPI install.\r | |
511 | \r | |
512 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
513 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
514 | @param[in] Ppi Address of the PPI that was installed.\r | |
515 | \r | |
516 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
517 | @return Others Fail to measure FV.\r | |
518 | \r | |
519 | **/\r | |
520 | EFI_STATUS\r | |
521 | EFIAPI\r | |
522 | FirmwareVolmeInfoPpiNotifyCallback (\r | |
523 | IN EFI_PEI_SERVICES **PeiServices,\r | |
524 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
525 | IN VOID *Ppi\r | |
526 | )\r | |
527 | {\r | |
528 | EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *Fv;\r | |
529 | EFI_STATUS Status;\r | |
530 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
387208ab | 531 | UINTN Index;\r |
0c18794e | 532 | \r |
533 | Fv = (EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *) Ppi;\r | |
534 | \r | |
535 | //\r | |
536 | // The PEI Core can not dispatch or load files from memory mapped FVs that do not support FvPpi.\r | |
537 | //\r | |
538 | Status = PeiServicesLocatePpi (\r | |
b3548d32 LG |
539 | &Fv->FvFormat,\r |
540 | 0,\r | |
0c18794e | 541 | NULL,\r |
542 | (VOID**)&FvPpi\r | |
543 | );\r | |
544 | if (EFI_ERROR (Status)) {\r | |
545 | return EFI_SUCCESS;\r | |
546 | }\r | |
b3548d32 | 547 | \r |
0c18794e | 548 | //\r |
549 | // This is an FV from an FFS file, and the parent FV must have already been measured,\r | |
2aadc920 | 550 | // No need to measure twice, so just record the FV and return\r |
0c18794e | 551 | //\r |
552 | if (Fv->ParentFvName != NULL || Fv->ParentFileName != NULL ) {\r | |
b3548d32 | 553 | \r |
aa8c6e2a SZ |
554 | if (mMeasuredChildFvIndex >= mMeasuredMaxChildFvIndex) {\r |
555 | mMeasuredChildFvInfo = ReallocatePool (\r | |
556 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * mMeasuredMaxChildFvIndex,\r | |
557 | sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP),\r | |
558 | mMeasuredChildFvInfo\r | |
559 | );\r | |
560 | ASSERT (mMeasuredChildFvInfo != NULL);\r | |
561 | mMeasuredMaxChildFvIndex = mMeasuredMaxChildFvIndex + FIRMWARE_BLOB_GROWTH_STEP;\r | |
562 | }\r | |
563 | //\r | |
564 | // Check whether FV is in the measured child FV list.\r | |
565 | //\r | |
566 | for (Index = 0; Index < mMeasuredChildFvIndex; Index++) {\r | |
567 | if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) {\r | |
568 | return EFI_SUCCESS;\r | |
387208ab | 569 | }\r |
2aadc920 | 570 | }\r |
aa8c6e2a SZ |
571 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo;\r |
572 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize;\r | |
573 | mMeasuredChildFvIndex++;\r | |
0c18794e | 574 | return EFI_SUCCESS;\r |
575 | }\r | |
576 | \r | |
577 | return MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo, Fv->FvInfoSize);\r | |
578 | }\r | |
579 | \r | |
580 | /**\r | |
5a500332 | 581 | Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by corresponding PCDs.\r |
582 | And lock physical presence if needed.\r | |
0c18794e | 583 | \r |
584 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
585 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
586 | @param[in] Ppi Address of the PPI that was installed.\r | |
587 | \r | |
588 | @retval EFI_SUCCESS Operation completed successfully.\r | |
589 | @retval EFI_ABORTED physicalPresenceCMDEnable is locked.\r | |
590 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
591 | \r | |
592 | **/\r | |
593 | EFI_STATUS\r | |
594 | EFIAPI\r | |
595 | PhysicalPresencePpiNotifyCallback (\r | |
596 | IN EFI_PEI_SERVICES **PeiServices,\r | |
597 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
598 | IN VOID *Ppi\r | |
599 | )\r | |
600 | {\r | |
601 | EFI_STATUS Status;\r | |
45500265 | 602 | TPM_PERMANENT_FLAGS TpmPermanentFlags;\r |
0c18794e | 603 | PEI_LOCK_PHYSICAL_PRESENCE_PPI *LockPhysicalPresencePpi;\r |
5a500332 | 604 | TPM_PHYSICAL_PRESENCE PhysicalPresenceValue;\r |
0c18794e | 605 | \r |
45500265 | 606 | Status = Tpm12GetCapabilityFlagPermanent (&TpmPermanentFlags);\r |
5a500332 | 607 | if (EFI_ERROR (Status)) {\r |
608 | return Status;\r | |
0c18794e | 609 | }\r |
610 | \r | |
611 | //\r | |
5a500332 | 612 | // 1. Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by PCDs.\r |
0c18794e | 613 | //\r |
45500265 | 614 | if (PcdGetBool (PcdPhysicalPresenceLifetimeLock) && !TpmPermanentFlags.physicalPresenceLifetimeLock) {\r |
5a500332 | 615 | //\r |
b3548d32 | 616 | // Lock TPM LifetimeLock is required, and LifetimeLock is not locked yet.\r |
5a500332 | 617 | //\r |
618 | PhysicalPresenceValue = TPM_PHYSICAL_PRESENCE_LIFETIME_LOCK;\r | |
42b85551 | 619 | TpmPermanentFlags.physicalPresenceLifetimeLock = TRUE;\r |
5a500332 | 620 | \r |
621 | if (PcdGetBool (PcdPhysicalPresenceCmdEnable)) {\r | |
622 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_ENABLE;\r | |
45500265 | 623 | TpmPermanentFlags.physicalPresenceCMDEnable = TRUE;\r |
5a500332 | 624 | } else {\r |
625 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_DISABLE;\r | |
45500265 | 626 | TpmPermanentFlags.physicalPresenceCMDEnable = FALSE;\r |
5a500332 | 627 | }\r |
0c18794e | 628 | \r |
5a500332 | 629 | if (PcdGetBool (PcdPhysicalPresenceHwEnable)) {\r |
630 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_ENABLE;\r | |
631 | } else {\r | |
632 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_DISABLE;\r | |
b3548d32 LG |
633 | }\r |
634 | \r | |
45500265 | 635 | Status = Tpm12PhysicalPresence (\r |
5a500332 | 636 | PhysicalPresenceValue\r |
637 | );\r | |
638 | if (EFI_ERROR (Status)) {\r | |
639 | return Status;\r | |
640 | }\r | |
641 | }\r | |
b3548d32 | 642 | \r |
5a500332 | 643 | //\r |
644 | // 2. Lock physical presence if it is required.\r | |
645 | //\r | |
646 | LockPhysicalPresencePpi = (PEI_LOCK_PHYSICAL_PRESENCE_PPI *) Ppi;\r | |
647 | if (!LockPhysicalPresencePpi->LockPhysicalPresence ((CONST EFI_PEI_SERVICES**) PeiServices)) {\r | |
648 | return EFI_SUCCESS;\r | |
0c18794e | 649 | }\r |
650 | \r | |
45500265 MK |
651 | if (!TpmPermanentFlags.physicalPresenceCMDEnable) {\r |
652 | if (TpmPermanentFlags.physicalPresenceLifetimeLock) {\r | |
0c18794e | 653 | //\r |
654 | // physicalPresenceCMDEnable is locked, can't change.\r | |
655 | //\r | |
656 | return EFI_ABORTED;\r | |
657 | }\r | |
658 | \r | |
659 | //\r | |
660 | // Enable physical presence command\r | |
661 | // It is necessary in order to lock physical presence\r | |
662 | //\r | |
45500265 | 663 | Status = Tpm12PhysicalPresence (\r |
0c18794e | 664 | TPM_PHYSICAL_PRESENCE_CMD_ENABLE\r |
665 | );\r | |
666 | if (EFI_ERROR (Status)) {\r | |
667 | return Status;\r | |
668 | }\r | |
669 | }\r | |
670 | \r | |
671 | //\r | |
672 | // Lock physical presence\r | |
b3548d32 | 673 | //\r |
45500265 | 674 | Status = Tpm12PhysicalPresence (\r |
0c18794e | 675 | TPM_PHYSICAL_PRESENCE_LOCK\r |
676 | );\r | |
677 | return Status;\r | |
678 | }\r | |
679 | \r | |
680 | /**\r | |
681 | Check if TPM chip is activeated or not.\r | |
682 | \r | |
683 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 684 | \r |
685 | @retval TRUE TPM is activated.\r | |
686 | @retval FALSE TPM is deactivated.\r | |
687 | \r | |
688 | **/\r | |
689 | BOOLEAN\r | |
0c18794e | 690 | IsTpmUsable (\r |
45500265 | 691 | VOID\r |
0c18794e | 692 | )\r |
693 | {\r | |
45500265 MK |
694 | EFI_STATUS Status;\r |
695 | TPM_PERMANENT_FLAGS TpmPermanentFlags;\r | |
0c18794e | 696 | \r |
45500265 | 697 | Status = Tpm12GetCapabilityFlagPermanent (&TpmPermanentFlags);\r |
0c18794e | 698 | if (EFI_ERROR (Status)) {\r |
699 | return FALSE;\r | |
700 | }\r | |
45500265 | 701 | return (BOOLEAN)(!TpmPermanentFlags.deactivated);\r |
0c18794e | 702 | }\r |
703 | \r | |
704 | /**\r | |
705 | Do measurement after memory is ready.\r | |
706 | \r | |
707 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
708 | \r | |
709 | @retval EFI_SUCCESS Operation completed successfully.\r | |
710 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
711 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
712 | \r | |
713 | **/\r | |
714 | EFI_STATUS\r | |
715 | EFIAPI\r | |
716 | PeimEntryMP (\r | |
717 | IN EFI_PEI_SERVICES **PeiServices\r | |
718 | )\r | |
719 | {\r | |
720 | EFI_STATUS Status;\r | |
0c18794e | 721 | \r |
c1d93242 | 722 | Status = PeiServicesLocatePpi (\r |
b3548d32 LG |
723 | &gEfiPeiFirmwareVolumeInfoMeasurementExcludedPpiGuid,\r |
724 | 0,\r | |
c1d93242 JY |
725 | NULL,\r |
726 | (VOID**)&mMeasurementExcludedFvPpi\r | |
727 | );\r | |
728 | // Do not check status, because it is optional\r | |
729 | \r | |
b558f8bc | 730 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 731 | if (EFI_ERROR (Status)) {\r |
732 | return Status;\r | |
733 | }\r | |
734 | \r | |
45500265 | 735 | if (IsTpmUsable ()) {\r |
c1d93242 | 736 | if (PcdGet8 (PcdTpmScrtmPolicy) == 1) {\r |
b558f8bc | 737 | Status = MeasureCRTMVersion (PeiServices);\r |
c1d93242 | 738 | }\r |
0c18794e | 739 | \r |
b558f8bc | 740 | Status = MeasureMainBios (PeiServices);\r |
b3548d32 | 741 | }\r |
0c18794e | 742 | \r |
743 | //\r | |
744 | // Post callbacks:\r | |
745 | // 1). for the FvInfoPpi services to measure and record\r | |
746 | // the additional Fvs to TPM\r | |
b3548d32 | 747 | // 2). for the OperatorPresencePpi service to determine whether to\r |
0c18794e | 748 | // lock the TPM\r |
749 | //\r | |
750 | Status = PeiServicesNotifyPpi (&mNotifyList[0]);\r | |
751 | ASSERT_EFI_ERROR (Status);\r | |
752 | \r | |
753 | return Status;\r | |
754 | }\r | |
755 | \r | |
756 | /**\r | |
757 | Entry point of this module.\r | |
758 | \r | |
759 | @param[in] FileHandle Handle of the file being invoked.\r | |
760 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
761 | \r | |
762 | @return Status.\r | |
763 | \r | |
764 | **/\r | |
765 | EFI_STATUS\r | |
766 | EFIAPI\r | |
767 | PeimEntryMA (\r | |
768 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
769 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
770 | )\r | |
771 | {\r | |
772 | EFI_STATUS Status;\r | |
83a276f6 | 773 | EFI_STATUS Status2;\r |
0c18794e | 774 | EFI_BOOT_MODE BootMode;\r |
0c18794e | 775 | \r |
c1d93242 JY |
776 | if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)){\r |
777 | DEBUG ((EFI_D_ERROR, "No TPM12 instance required!\n"));\r | |
778 | return EFI_UNSUPPORTED;\r | |
779 | }\r | |
780 | \r | |
3dd05ac3 JY |
781 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r |
782 | DEBUG ((EFI_D_ERROR, "TPM error!\n"));\r | |
783 | return EFI_DEVICE_ERROR;\r | |
784 | }\r | |
785 | \r | |
055c829c | 786 | //\r |
787 | // Initialize TPM device\r | |
788 | //\r | |
789 | Status = PeiServicesGetBootMode (&BootMode);\r | |
790 | ASSERT_EFI_ERROR (Status);\r | |
791 | \r | |
792 | //\r | |
793 | // In S3 path, skip shadow logic. no measurement is required\r | |
794 | //\r | |
795 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
796 | Status = (**PeiServices).RegisterForShadow(FileHandle);\r | |
797 | if (Status == EFI_ALREADY_STARTED) {\r | |
798 | mImageInMemory = TRUE;\r | |
799 | } else if (Status == EFI_NOT_FOUND) {\r | |
800 | ASSERT_EFI_ERROR (Status);\r | |
801 | }\r | |
0c18794e | 802 | }\r |
803 | \r | |
804 | if (!mImageInMemory) {\r | |
b558f8bc | 805 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 806 | if (EFI_ERROR (Status)) {\r |
807 | DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));\r | |
83a276f6 | 808 | goto Done;\r |
0c18794e | 809 | }\r |
810 | \r | |
c1d93242 | 811 | if (PcdGet8 (PcdTpmInitializationPolicy) == 1) {\r |
45500265 MK |
812 | if (BootMode == BOOT_ON_S3_RESUME) {\r |
813 | Status = Tpm12Startup (TPM_ST_STATE);\r | |
814 | } else {\r | |
815 | Status = Tpm12Startup (TPM_ST_CLEAR);\r | |
816 | }\r | |
c1d93242 | 817 | if (EFI_ERROR (Status) ) {\r |
83a276f6 | 818 | goto Done;\r |
c1d93242 | 819 | }\r |
0c18794e | 820 | }\r |
6f6c7857 | 821 | \r |
822 | //\r | |
823 | // TpmSelfTest is optional on S3 path, skip it to save S3 time\r | |
824 | //\r | |
825 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
45500265 | 826 | Status = Tpm12ContinueSelfTest ();\r |
6f6c7857 | 827 | if (EFI_ERROR (Status)) {\r |
83a276f6 | 828 | goto Done;\r |
6f6c7857 | 829 | }\r |
0c18794e | 830 | }\r |
6f6c7857 | 831 | \r |
83a276f6 JY |
832 | //\r |
833 | // Only intall TpmInitializedPpi on success\r | |
834 | //\r | |
0c18794e | 835 | Status = PeiServicesInstallPpi (&mTpmInitializedPpiList);\r |
836 | ASSERT_EFI_ERROR (Status);\r | |
837 | }\r | |
838 | \r | |
839 | if (mImageInMemory) {\r | |
840 | Status = PeimEntryMP ((EFI_PEI_SERVICES**)PeiServices);\r | |
83a276f6 | 841 | return Status;\r |
0c18794e | 842 | }\r |
843 | \r | |
83a276f6 | 844 | Done:\r |
3dd05ac3 JY |
845 | if (EFI_ERROR (Status)) {\r |
846 | DEBUG ((EFI_D_ERROR, "TPM error! Build Hob\n"));\r | |
847 | BuildGuidHob (&gTpmErrorHobGuid,0);\r | |
848 | REPORT_STATUS_CODE (\r | |
849 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
850 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
851 | );\r | |
852 | }\r | |
83a276f6 JY |
853 | //\r |
854 | // Always intall TpmInitializationDonePpi no matter success or fail.\r | |
855 | // Other driver can know TPM initialization state by TpmInitializedPpi.\r | |
856 | //\r | |
857 | Status2 = PeiServicesInstallPpi (&mTpmInitializationDonePpiList);\r | |
858 | ASSERT_EFI_ERROR (Status2);\r | |
859 | \r | |
0c18794e | 860 | return Status;\r |
861 | }\r |