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0c18794e | 1 | /** @file\r |
2 | Initialize TPM device and measure FVs before handing off control to DXE.\r | |
3 | \r | |
b558f8bc | 4 | Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR>\r |
0c18794e | 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 | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
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 |
0c18794e | 41 | \r |
42 | #include "TpmComm.h"\r | |
43 | \r | |
44 | BOOLEAN mImageInMemory = FALSE;\r | |
45 | \r | |
46 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializedPpiList = {\r | |
47 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
48 | &gPeiTpmInitializedPpiGuid,\r | |
49 | NULL\r | |
50 | };\r | |
51 | \r | |
83a276f6 JY |
52 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializationDonePpiList = {\r |
53 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
54 | &gPeiTpmInitializationDonePpiGuid,\r | |
55 | NULL\r | |
56 | };\r | |
57 | \r | |
b5412eac | 58 | EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredBaseFvInfo;\r |
2aadc920 | 59 | UINT32 mMeasuredBaseFvIndex = 0;\r |
60 | \r | |
b5412eac | 61 | EFI_PLATFORM_FIRMWARE_BLOB *mMeasuredChildFvInfo;\r |
2aadc920 | 62 | UINT32 mMeasuredChildFvIndex = 0;\r |
63 | \r | |
c1d93242 JY |
64 | EFI_PEI_FIRMWARE_VOLUME_INFO_MEASUREMENT_EXCLUDED_PPI *mMeasurementExcludedFvPpi;\r |
65 | \r | |
0c18794e | 66 | /**\r |
67 | Lock physical presence if needed.\r | |
68 | \r | |
69 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
70 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
71 | @param[in] Ppi Address of the PPI that was installed.\r | |
72 | \r | |
73 | @retval EFI_SUCCESS Operation completed successfully.\r | |
74 | \r | |
75 | **/\r | |
76 | EFI_STATUS\r | |
77 | EFIAPI\r | |
78 | PhysicalPresencePpiNotifyCallback (\r | |
79 | IN EFI_PEI_SERVICES **PeiServices,\r | |
80 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
81 | IN VOID *Ppi\r | |
82 | );\r | |
83 | \r | |
84 | /**\r | |
85 | Measure and record the Firmware Volum Information once FvInfoPPI install.\r | |
86 | \r | |
87 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
88 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
89 | @param[in] Ppi Address of the PPI that was installed.\r | |
90 | \r | |
91 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
92 | @return Others Fail to measure FV.\r | |
93 | \r | |
94 | **/\r | |
95 | EFI_STATUS\r | |
96 | EFIAPI\r | |
97 | FirmwareVolmeInfoPpiNotifyCallback (\r | |
98 | IN EFI_PEI_SERVICES **PeiServices,\r | |
99 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
100 | IN VOID *Ppi\r | |
101 | );\r | |
102 | \r | |
2aadc920 | 103 | /**\r |
104 | Record all measured Firmware Volum Information into a Guid Hob\r | |
105 | \r | |
106 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
107 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
108 | @param[in] Ppi Address of the PPI that was installed.\r | |
109 | \r | |
110 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
111 | @return Others Fail to measure FV.\r | |
112 | \r | |
113 | **/\r | |
114 | EFI_STATUS\r | |
115 | EFIAPI\r | |
116 | EndofPeiSignalNotifyCallBack (\r | |
117 | IN EFI_PEI_SERVICES **PeiServices,\r | |
118 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
119 | IN VOID *Ppi\r | |
120 | );\r | |
121 | \r | |
0c18794e | 122 | EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList[] = {\r |
123 | {\r | |
124 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
125 | &gPeiLockPhysicalPresencePpiGuid,\r | |
126 | PhysicalPresencePpiNotifyCallback\r | |
127 | },\r | |
128 | {\r | |
2aadc920 | 129 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
0c18794e | 130 | &gEfiPeiFirmwareVolumeInfoPpiGuid,\r |
131 | FirmwareVolmeInfoPpiNotifyCallback \r | |
2aadc920 | 132 | },\r |
c7935105 SZ |
133 | {\r |
134 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
135 | &gEfiPeiFirmwareVolumeInfo2PpiGuid,\r | |
136 | FirmwareVolmeInfoPpiNotifyCallback \r | |
137 | },\r | |
2aadc920 | 138 | {\r |
139 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
140 | &gEfiEndOfPeiSignalPpiGuid,\r | |
141 | EndofPeiSignalNotifyCallBack\r | |
0c18794e | 142 | }\r |
143 | };\r | |
144 | \r | |
2aadc920 | 145 | /**\r |
146 | Record all measured Firmware Volum Information into a Guid Hob\r | |
147 | Guid Hob payload layout is \r | |
148 | \r | |
149 | UINT32 *************************** FIRMWARE_BLOB number\r | |
150 | EFI_PLATFORM_FIRMWARE_BLOB******** BLOB Array\r | |
151 | \r | |
152 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
153 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
154 | @param[in] Ppi Address of the PPI that was installed.\r | |
155 | \r | |
156 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
157 | @return Others Fail to measure FV.\r | |
158 | \r | |
159 | **/\r | |
160 | EFI_STATUS\r | |
161 | EFIAPI\r | |
162 | EndofPeiSignalNotifyCallBack (\r | |
163 | IN EFI_PEI_SERVICES **PeiServices,\r | |
164 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
165 | IN VOID *Ppi\r | |
166 | )\r | |
167 | { \r | |
0758c830 | 168 | MEASURED_HOB_DATA *MeasuredHobData;\r |
2aadc920 | 169 | \r |
0758c830 | 170 | MeasuredHobData = NULL;\r |
2aadc920 | 171 | \r |
172 | //\r | |
0758c830 | 173 | // Create a Guid hob to save all measured Fv \r |
2aadc920 | 174 | //\r |
0758c830 | 175 | MeasuredHobData = BuildGuidHob(\r |
176 | &gMeasuredFvHobGuid,\r | |
177 | sizeof(UINTN) + sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex + mMeasuredChildFvIndex)\r | |
178 | );\r | |
2aadc920 | 179 | \r |
0758c830 | 180 | if (MeasuredHobData != NULL){\r |
2aadc920 | 181 | //\r |
182 | // Save measured FV info enty number\r | |
183 | //\r | |
0758c830 | 184 | MeasuredHobData->Num = mMeasuredBaseFvIndex + mMeasuredChildFvIndex;\r |
2aadc920 | 185 | \r |
2aadc920 | 186 | //\r |
187 | // Save measured base Fv info\r | |
188 | //\r | |
0758c830 | 189 | CopyMem (MeasuredHobData->MeasuredFvBuf, mMeasuredBaseFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex));\r |
2aadc920 | 190 | \r |
2aadc920 | 191 | //\r |
192 | // Save measured child Fv info\r | |
193 | //\r | |
0758c830 | 194 | CopyMem (&MeasuredHobData->MeasuredFvBuf[mMeasuredBaseFvIndex] , mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));\r |
2aadc920 | 195 | }\r |
196 | \r | |
197 | return EFI_SUCCESS;\r | |
198 | }\r | |
0c18794e | 199 | \r |
200 | /**\r | |
201 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
202 | and build a GUIDed HOB recording the event which will be passed to the DXE phase and\r | |
203 | added into the Event Log.\r | |
204 | \r | |
205 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
206 | @param[in] HashData Physical address of the start of the data buffer \r | |
207 | to be hashed, extended, and logged.\r | |
208 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData.\r | |
0c18794e | 209 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure. \r |
210 | @param[in] NewEventData Pointer to the new event data. \r | |
211 | \r | |
212 | @retval EFI_SUCCESS Operation completed successfully.\r | |
213 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
214 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
215 | \r | |
216 | **/\r | |
217 | EFI_STATUS\r | |
218 | HashLogExtendEvent (\r | |
219 | IN EFI_PEI_SERVICES **PeiServices,\r | |
220 | IN UINT8 *HashData,\r | |
221 | IN UINTN HashDataLen,\r | |
0c18794e | 222 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r |
223 | IN UINT8 *NewEventData\r | |
224 | )\r | |
225 | {\r | |
226 | EFI_STATUS Status;\r | |
227 | VOID *HobData;\r | |
6f785cfc JY |
228 | \r |
229 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r | |
230 | return EFI_DEVICE_ERROR;\r | |
231 | }\r | |
0c18794e | 232 | \r |
233 | HobData = NULL;\r | |
234 | if (HashDataLen != 0) {\r | |
235 | Status = TpmCommHashAll (\r | |
236 | HashData,\r | |
237 | HashDataLen,\r | |
238 | &NewEventHdr->Digest\r | |
239 | );\r | |
6f785cfc JY |
240 | if (EFI_ERROR (Status)) {\r |
241 | goto Done;\r | |
242 | }\r | |
0c18794e | 243 | }\r |
244 | \r | |
245 | Status = TpmCommExtend (\r | |
246 | PeiServices,\r | |
0c18794e | 247 | &NewEventHdr->Digest,\r |
248 | NewEventHdr->PCRIndex,\r | |
249 | NULL\r | |
250 | );\r | |
6f785cfc JY |
251 | if (EFI_ERROR (Status)) {\r |
252 | goto Done;\r | |
253 | }\r | |
0c18794e | 254 | \r |
255 | HobData = BuildGuidHob (\r | |
256 | &gTcgEventEntryHobGuid,\r | |
257 | sizeof (*NewEventHdr) + NewEventHdr->EventSize\r | |
258 | );\r | |
259 | if (HobData == NULL) {\r | |
6f785cfc JY |
260 | Status = EFI_OUT_OF_RESOURCES;\r |
261 | goto Done;\r | |
0c18794e | 262 | }\r |
263 | \r | |
264 | CopyMem (HobData, NewEventHdr, sizeof (*NewEventHdr));\r | |
265 | HobData = (VOID *) ((UINT8*)HobData + sizeof (*NewEventHdr));\r | |
266 | CopyMem (HobData, NewEventData, NewEventHdr->EventSize);\r | |
6f785cfc JY |
267 | \r |
268 | Done:\r | |
269 | if ((Status == EFI_DEVICE_ERROR) || (Status == EFI_TIMEOUT)) {\r | |
270 | DEBUG ((EFI_D_ERROR, "HashLogExtendEvent - %r. Disable TPM.\n", Status));\r | |
271 | BuildGuidHob (&gTpmErrorHobGuid,0);\r | |
272 | REPORT_STATUS_CODE (\r | |
273 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
274 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
275 | );\r | |
276 | Status = EFI_DEVICE_ERROR;\r | |
277 | }\r | |
278 | return Status;\r | |
0c18794e | 279 | }\r |
280 | \r | |
281 | /**\r | |
282 | Measure CRTM version.\r | |
283 | \r | |
284 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 285 | \r |
286 | @retval EFI_SUCCESS Operation completed successfully.\r | |
287 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
288 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
289 | \r | |
290 | **/\r | |
291 | EFI_STATUS\r | |
292 | EFIAPI\r | |
293 | MeasureCRTMVersion (\r | |
b558f8bc | 294 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 295 | )\r |
296 | {\r | |
297 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
298 | \r | |
299 | //\r | |
333a53ee | 300 | // Use FirmwareVersion string to represent CRTM version.\r |
0c18794e | 301 | // OEMs should get real CRTM version string and measure it.\r |
302 | //\r | |
303 | \r | |
304 | TcgEventHdr.PCRIndex = 0;\r | |
305 | TcgEventHdr.EventType = EV_S_CRTM_VERSION;\r | |
8cc06814 | 306 | TcgEventHdr.EventSize = (UINT32) StrSize((CHAR16*)PcdGetPtr (PcdFirmwareVersionString));\r |
333a53ee | 307 | \r |
0c18794e | 308 | return HashLogExtendEvent (\r |
309 | PeiServices,\r | |
333a53ee | 310 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString),\r |
0c18794e | 311 | TcgEventHdr.EventSize,\r |
0c18794e | 312 | &TcgEventHdr,\r |
333a53ee | 313 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString)\r |
0c18794e | 314 | );\r |
315 | }\r | |
316 | \r | |
317 | /**\r | |
318 | Measure FV image. \r | |
319 | Add it into the measured FV list after the FV is measured successfully. \r | |
320 | \r | |
321 | @param[in] FvBase Base address of FV image.\r | |
322 | @param[in] FvLength Length of FV image.\r | |
323 | \r | |
324 | @retval EFI_SUCCESS Fv image is measured successfully \r | |
325 | or it has been already measured.\r | |
326 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
327 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
328 | \r | |
329 | **/\r | |
330 | EFI_STATUS\r | |
331 | EFIAPI\r | |
332 | MeasureFvImage (\r | |
333 | IN EFI_PHYSICAL_ADDRESS FvBase,\r | |
334 | IN UINT64 FvLength\r | |
335 | )\r | |
336 | {\r | |
337 | UINT32 Index;\r | |
338 | EFI_STATUS Status;\r | |
339 | EFI_PLATFORM_FIRMWARE_BLOB FvBlob;\r | |
340 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
0c18794e | 341 | \r |
c1d93242 JY |
342 | //\r |
343 | // Check if it is in Excluded FV list\r | |
344 | //\r | |
345 | if (mMeasurementExcludedFvPpi != NULL) {\r | |
346 | for (Index = 0; Index < mMeasurementExcludedFvPpi->Count; Index ++) {\r | |
347 | if (mMeasurementExcludedFvPpi->Fv[Index].FvBase == FvBase) {\r | |
348 | DEBUG ((DEBUG_INFO, "The FV which is excluded by TcgPei starts at: 0x%x\n", FvBase));\r | |
349 | DEBUG ((DEBUG_INFO, "The FV which is excluded by TcgPei has the size: 0x%x\n", FvLength));\r | |
350 | return EFI_SUCCESS;\r | |
351 | }\r | |
352 | }\r | |
353 | }\r | |
354 | \r | |
0c18794e | 355 | //\r |
356 | // Check whether FV is in the measured FV list.\r | |
357 | //\r | |
2aadc920 | 358 | for (Index = 0; Index < mMeasuredBaseFvIndex; Index ++) {\r |
359 | if (mMeasuredBaseFvInfo[Index].BlobBase == FvBase) {\r | |
0c18794e | 360 | return EFI_SUCCESS;\r |
361 | }\r | |
362 | }\r | |
363 | \r | |
364 | //\r | |
365 | // Measure and record the FV to the TPM\r | |
366 | //\r | |
367 | FvBlob.BlobBase = FvBase;\r | |
368 | FvBlob.BlobLength = FvLength;\r | |
369 | \r | |
370 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei starts at: 0x%x\n", FvBlob.BlobBase));\r | |
371 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei has the size: 0x%x\n", FvBlob.BlobLength));\r | |
372 | \r | |
373 | TcgEventHdr.PCRIndex = 0;\r | |
374 | TcgEventHdr.EventType = EV_EFI_PLATFORM_FIRMWARE_BLOB;\r | |
375 | TcgEventHdr.EventSize = sizeof (FvBlob);\r | |
376 | \r | |
377 | Status = HashLogExtendEvent (\r | |
378 | (EFI_PEI_SERVICES **) GetPeiServicesTablePointer(),\r | |
379 | (UINT8*) (UINTN) FvBlob.BlobBase,\r | |
380 | (UINTN) FvBlob.BlobLength,\r | |
0c18794e | 381 | &TcgEventHdr,\r |
382 | (UINT8*) &FvBlob\r | |
383 | );\r | |
0c18794e | 384 | \r |
385 | //\r | |
386 | // Add new FV into the measured FV list.\r | |
387 | //\r | |
b5412eac DG |
388 | ASSERT (mMeasuredBaseFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported));\r |
389 | if (mMeasuredBaseFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)) {\r | |
2aadc920 | 390 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase;\r |
391 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength;\r | |
392 | mMeasuredBaseFvIndex++;\r | |
0c18794e | 393 | }\r |
394 | \r | |
395 | return Status;\r | |
396 | }\r | |
397 | \r | |
398 | /**\r | |
399 | Measure main BIOS.\r | |
400 | \r | |
401 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 402 | \r |
403 | @retval EFI_SUCCESS Operation completed successfully.\r | |
404 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
405 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
406 | \r | |
407 | **/\r | |
408 | EFI_STATUS\r | |
409 | EFIAPI\r | |
410 | MeasureMainBios (\r | |
b558f8bc | 411 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 412 | )\r |
413 | {\r | |
414 | EFI_STATUS Status;\r | |
415 | UINT32 FvInstances;\r | |
416 | EFI_PEI_FV_HANDLE VolumeHandle;\r | |
417 | EFI_FV_INFO VolumeInfo;\r | |
418 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
419 | \r | |
420 | FvInstances = 0;\r | |
421 | while (TRUE) {\r | |
422 | //\r | |
423 | // Traverse all firmware volume instances of Static Core Root of Trust for Measurement\r | |
424 | // (S-CRTM), this firmware volume measure policy can be modified/enhanced by special\r | |
425 | // platform for special CRTM TPM measuring.\r | |
426 | //\r | |
427 | Status = PeiServicesFfsFindNextVolume (FvInstances, &VolumeHandle);\r | |
428 | if (EFI_ERROR (Status)) {\r | |
429 | break;\r | |
430 | }\r | |
431 | \r | |
432 | //\r | |
433 | // Measure and record the firmware volume that is dispatched by PeiCore\r | |
434 | //\r | |
435 | Status = PeiServicesFfsGetVolumeInfo (VolumeHandle, &VolumeInfo);\r | |
436 | ASSERT_EFI_ERROR (Status);\r | |
437 | //\r | |
438 | // Locate the corresponding FV_PPI according to founded FV's format guid\r | |
439 | //\r | |
440 | Status = PeiServicesLocatePpi (\r | |
441 | &VolumeInfo.FvFormat, \r | |
442 | 0, \r | |
443 | NULL,\r | |
444 | (VOID**)&FvPpi\r | |
445 | );\r | |
446 | if (!EFI_ERROR (Status)) {\r | |
447 | MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) VolumeInfo.FvStart, VolumeInfo.FvSize);\r | |
448 | }\r | |
449 | \r | |
450 | FvInstances++;\r | |
451 | }\r | |
452 | \r | |
453 | return EFI_SUCCESS;\r | |
454 | }\r | |
455 | \r | |
456 | /**\r | |
457 | Measure and record the Firmware Volum Information once FvInfoPPI install.\r | |
458 | \r | |
459 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
460 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
461 | @param[in] Ppi Address of the PPI that was installed.\r | |
462 | \r | |
463 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
464 | @return Others Fail to measure FV.\r | |
465 | \r | |
466 | **/\r | |
467 | EFI_STATUS\r | |
468 | EFIAPI\r | |
469 | FirmwareVolmeInfoPpiNotifyCallback (\r | |
470 | IN EFI_PEI_SERVICES **PeiServices,\r | |
471 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
472 | IN VOID *Ppi\r | |
473 | )\r | |
474 | {\r | |
475 | EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *Fv;\r | |
476 | EFI_STATUS Status;\r | |
477 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
387208ab | 478 | UINTN Index;\r |
0c18794e | 479 | \r |
480 | Fv = (EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *) Ppi;\r | |
481 | \r | |
482 | //\r | |
483 | // The PEI Core can not dispatch or load files from memory mapped FVs that do not support FvPpi.\r | |
484 | //\r | |
485 | Status = PeiServicesLocatePpi (\r | |
486 | &Fv->FvFormat, \r | |
487 | 0, \r | |
488 | NULL,\r | |
489 | (VOID**)&FvPpi\r | |
490 | );\r | |
491 | if (EFI_ERROR (Status)) {\r | |
492 | return EFI_SUCCESS;\r | |
493 | }\r | |
494 | \r | |
495 | //\r | |
496 | // This is an FV from an FFS file, and the parent FV must have already been measured,\r | |
2aadc920 | 497 | // No need to measure twice, so just record the FV and return\r |
0c18794e | 498 | //\r |
499 | if (Fv->ParentFvName != NULL || Fv->ParentFileName != NULL ) {\r | |
2aadc920 | 500 | \r |
b5412eac DG |
501 | ASSERT (mMeasuredChildFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported));\r |
502 | if (mMeasuredChildFvIndex < PcdGet32 (PcdPeiCoreMaxFvSupported)) {\r | |
387208ab SZ |
503 | //\r |
504 | // Check whether FV is in the measured child FV list.\r | |
505 | //\r | |
506 | for (Index = 0; Index < mMeasuredChildFvIndex; Index++) {\r | |
507 | if (mMeasuredChildFvInfo[Index].BlobBase == (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo) {\r | |
508 | return EFI_SUCCESS;\r | |
509 | }\r | |
510 | }\r | |
2aadc920 | 511 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo;\r |
512 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize;\r | |
513 | mMeasuredChildFvIndex++;\r | |
514 | }\r | |
0c18794e | 515 | return EFI_SUCCESS;\r |
516 | }\r | |
517 | \r | |
518 | return MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo, Fv->FvInfoSize);\r | |
519 | }\r | |
520 | \r | |
521 | /**\r | |
5a500332 | 522 | Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by corresponding PCDs.\r |
523 | And lock physical presence if needed.\r | |
0c18794e | 524 | \r |
525 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
526 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
527 | @param[in] Ppi Address of the PPI that was installed.\r | |
528 | \r | |
529 | @retval EFI_SUCCESS Operation completed successfully.\r | |
530 | @retval EFI_ABORTED physicalPresenceCMDEnable is locked.\r | |
531 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
532 | \r | |
533 | **/\r | |
534 | EFI_STATUS\r | |
535 | EFIAPI\r | |
536 | PhysicalPresencePpiNotifyCallback (\r | |
537 | IN EFI_PEI_SERVICES **PeiServices,\r | |
538 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
539 | IN VOID *Ppi\r | |
540 | )\r | |
541 | {\r | |
542 | EFI_STATUS Status;\r | |
543 | PEI_LOCK_PHYSICAL_PRESENCE_PPI *LockPhysicalPresencePpi;\r | |
544 | BOOLEAN LifetimeLock;\r | |
545 | BOOLEAN CmdEnable;\r | |
5a500332 | 546 | TPM_PHYSICAL_PRESENCE PhysicalPresenceValue;\r |
0c18794e | 547 | \r |
b558f8bc | 548 | Status = TpmCommGetCapability (PeiServices, NULL, &LifetimeLock, &CmdEnable);\r |
5a500332 | 549 | if (EFI_ERROR (Status)) {\r |
550 | return Status;\r | |
0c18794e | 551 | }\r |
552 | \r | |
553 | //\r | |
5a500332 | 554 | // 1. Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by PCDs.\r |
0c18794e | 555 | //\r |
5a500332 | 556 | if (PcdGetBool (PcdPhysicalPresenceLifetimeLock) && !LifetimeLock) {\r |
557 | //\r | |
558 | // Lock TPM LifetimeLock is required, and LifetimeLock is not locked yet. \r | |
559 | //\r | |
560 | PhysicalPresenceValue = TPM_PHYSICAL_PRESENCE_LIFETIME_LOCK;\r | |
561 | \r | |
562 | if (PcdGetBool (PcdPhysicalPresenceCmdEnable)) {\r | |
563 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_ENABLE;\r | |
564 | CmdEnable = TRUE;\r | |
565 | } else {\r | |
566 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_DISABLE;\r | |
567 | CmdEnable = FALSE;\r | |
568 | }\r | |
0c18794e | 569 | \r |
5a500332 | 570 | if (PcdGetBool (PcdPhysicalPresenceHwEnable)) {\r |
571 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_ENABLE;\r | |
572 | } else {\r | |
573 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_DISABLE;\r | |
574 | } \r | |
575 | \r | |
576 | Status = TpmCommPhysicalPresence (\r | |
577 | PeiServices,\r | |
5a500332 | 578 | PhysicalPresenceValue\r |
579 | );\r | |
580 | if (EFI_ERROR (Status)) {\r | |
581 | return Status;\r | |
582 | }\r | |
583 | }\r | |
584 | \r | |
585 | //\r | |
586 | // 2. Lock physical presence if it is required.\r | |
587 | //\r | |
588 | LockPhysicalPresencePpi = (PEI_LOCK_PHYSICAL_PRESENCE_PPI *) Ppi;\r | |
589 | if (!LockPhysicalPresencePpi->LockPhysicalPresence ((CONST EFI_PEI_SERVICES**) PeiServices)) {\r | |
590 | return EFI_SUCCESS;\r | |
0c18794e | 591 | }\r |
592 | \r | |
593 | if (!CmdEnable) {\r | |
594 | if (LifetimeLock) {\r | |
595 | //\r | |
596 | // physicalPresenceCMDEnable is locked, can't change.\r | |
597 | //\r | |
598 | return EFI_ABORTED;\r | |
599 | }\r | |
600 | \r | |
601 | //\r | |
602 | // Enable physical presence command\r | |
603 | // It is necessary in order to lock physical presence\r | |
604 | //\r | |
605 | Status = TpmCommPhysicalPresence (\r | |
606 | PeiServices,\r | |
0c18794e | 607 | TPM_PHYSICAL_PRESENCE_CMD_ENABLE\r |
608 | );\r | |
609 | if (EFI_ERROR (Status)) {\r | |
610 | return Status;\r | |
611 | }\r | |
612 | }\r | |
613 | \r | |
614 | //\r | |
615 | // Lock physical presence\r | |
616 | // \r | |
617 | Status = TpmCommPhysicalPresence (\r | |
618 | PeiServices,\r | |
0c18794e | 619 | TPM_PHYSICAL_PRESENCE_LOCK\r |
620 | );\r | |
621 | return Status;\r | |
622 | }\r | |
623 | \r | |
624 | /**\r | |
625 | Check if TPM chip is activeated or not.\r | |
626 | \r | |
627 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
0c18794e | 628 | \r |
629 | @retval TRUE TPM is activated.\r | |
630 | @retval FALSE TPM is deactivated.\r | |
631 | \r | |
632 | **/\r | |
633 | BOOLEAN\r | |
634 | EFIAPI\r | |
635 | IsTpmUsable (\r | |
b558f8bc | 636 | IN EFI_PEI_SERVICES **PeiServices\r |
0c18794e | 637 | )\r |
638 | {\r | |
639 | EFI_STATUS Status;\r | |
640 | BOOLEAN Deactivated;\r | |
641 | \r | |
b558f8bc | 642 | Status = TpmCommGetCapability (PeiServices, &Deactivated, NULL, NULL);\r |
0c18794e | 643 | if (EFI_ERROR (Status)) {\r |
644 | return FALSE;\r | |
645 | }\r | |
646 | return (BOOLEAN)(!Deactivated); \r | |
647 | }\r | |
648 | \r | |
649 | /**\r | |
650 | Do measurement after memory is ready.\r | |
651 | \r | |
652 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
653 | \r | |
654 | @retval EFI_SUCCESS Operation completed successfully.\r | |
655 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
656 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
657 | \r | |
658 | **/\r | |
659 | EFI_STATUS\r | |
660 | EFIAPI\r | |
661 | PeimEntryMP (\r | |
662 | IN EFI_PEI_SERVICES **PeiServices\r | |
663 | )\r | |
664 | {\r | |
665 | EFI_STATUS Status;\r | |
0c18794e | 666 | \r |
c1d93242 JY |
667 | Status = PeiServicesLocatePpi (\r |
668 | &gEfiPeiFirmwareVolumeInfoMeasurementExcludedPpiGuid, \r | |
669 | 0, \r | |
670 | NULL,\r | |
671 | (VOID**)&mMeasurementExcludedFvPpi\r | |
672 | );\r | |
673 | // Do not check status, because it is optional\r | |
674 | \r | |
b5412eac DG |
675 | mMeasuredBaseFvInfo = (EFI_PLATFORM_FIRMWARE_BLOB *) AllocateZeroPool (sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * PcdGet32 (PcdPeiCoreMaxFvSupported));\r |
676 | ASSERT (mMeasuredBaseFvInfo != NULL);\r | |
677 | mMeasuredChildFvInfo = (EFI_PLATFORM_FIRMWARE_BLOB *) AllocateZeroPool (sizeof (EFI_PLATFORM_FIRMWARE_BLOB) * PcdGet32 (PcdPeiCoreMaxFvSupported));\r | |
678 | ASSERT (mMeasuredChildFvInfo != NULL);\r | |
679 | \r | |
b558f8bc | 680 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 681 | if (EFI_ERROR (Status)) {\r |
682 | return Status;\r | |
683 | }\r | |
684 | \r | |
b558f8bc | 685 | if (IsTpmUsable (PeiServices)) {\r |
c1d93242 | 686 | if (PcdGet8 (PcdTpmScrtmPolicy) == 1) {\r |
b558f8bc | 687 | Status = MeasureCRTMVersion (PeiServices);\r |
c1d93242 | 688 | }\r |
0c18794e | 689 | \r |
b558f8bc | 690 | Status = MeasureMainBios (PeiServices);\r |
0c18794e | 691 | } \r |
692 | \r | |
693 | //\r | |
694 | // Post callbacks:\r | |
695 | // 1). for the FvInfoPpi services to measure and record\r | |
696 | // the additional Fvs to TPM\r | |
697 | // 2). for the OperatorPresencePpi service to determine whether to \r | |
698 | // lock the TPM\r | |
699 | //\r | |
700 | Status = PeiServicesNotifyPpi (&mNotifyList[0]);\r | |
701 | ASSERT_EFI_ERROR (Status);\r | |
702 | \r | |
703 | return Status;\r | |
704 | }\r | |
705 | \r | |
706 | /**\r | |
707 | Entry point of this module.\r | |
708 | \r | |
709 | @param[in] FileHandle Handle of the file being invoked.\r | |
710 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
711 | \r | |
712 | @return Status.\r | |
713 | \r | |
714 | **/\r | |
715 | EFI_STATUS\r | |
716 | EFIAPI\r | |
717 | PeimEntryMA (\r | |
718 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
719 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
720 | )\r | |
721 | {\r | |
722 | EFI_STATUS Status;\r | |
83a276f6 | 723 | EFI_STATUS Status2;\r |
0c18794e | 724 | EFI_BOOT_MODE BootMode;\r |
0c18794e | 725 | \r |
c1d93242 JY |
726 | if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)){\r |
727 | DEBUG ((EFI_D_ERROR, "No TPM12 instance required!\n"));\r | |
728 | return EFI_UNSUPPORTED;\r | |
729 | }\r | |
730 | \r | |
3dd05ac3 JY |
731 | if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {\r |
732 | DEBUG ((EFI_D_ERROR, "TPM error!\n"));\r | |
733 | return EFI_DEVICE_ERROR;\r | |
734 | }\r | |
735 | \r | |
055c829c | 736 | //\r |
737 | // Initialize TPM device\r | |
738 | //\r | |
739 | Status = PeiServicesGetBootMode (&BootMode);\r | |
740 | ASSERT_EFI_ERROR (Status);\r | |
741 | \r | |
742 | //\r | |
743 | // In S3 path, skip shadow logic. no measurement is required\r | |
744 | //\r | |
745 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
746 | Status = (**PeiServices).RegisterForShadow(FileHandle);\r | |
747 | if (Status == EFI_ALREADY_STARTED) {\r | |
748 | mImageInMemory = TRUE;\r | |
749 | } else if (Status == EFI_NOT_FOUND) {\r | |
750 | ASSERT_EFI_ERROR (Status);\r | |
751 | }\r | |
0c18794e | 752 | }\r |
753 | \r | |
754 | if (!mImageInMemory) {\r | |
b558f8bc | 755 | Status = Tpm12RequestUseTpm ();\r |
0c18794e | 756 | if (EFI_ERROR (Status)) {\r |
757 | DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));\r | |
83a276f6 | 758 | goto Done;\r |
0c18794e | 759 | }\r |
760 | \r | |
c1d93242 | 761 | if (PcdGet8 (PcdTpmInitializationPolicy) == 1) {\r |
b558f8bc | 762 | Status = TpmCommStartup ((EFI_PEI_SERVICES**)PeiServices, BootMode);\r |
c1d93242 | 763 | if (EFI_ERROR (Status) ) {\r |
83a276f6 | 764 | goto Done;\r |
c1d93242 | 765 | }\r |
0c18794e | 766 | }\r |
6f6c7857 | 767 | \r |
768 | //\r | |
769 | // TpmSelfTest is optional on S3 path, skip it to save S3 time\r | |
770 | //\r | |
771 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
b558f8bc | 772 | Status = TpmCommContinueSelfTest ((EFI_PEI_SERVICES**)PeiServices);\r |
6f6c7857 | 773 | if (EFI_ERROR (Status)) {\r |
83a276f6 | 774 | goto Done;\r |
6f6c7857 | 775 | }\r |
0c18794e | 776 | }\r |
6f6c7857 | 777 | \r |
83a276f6 JY |
778 | //\r |
779 | // Only intall TpmInitializedPpi on success\r | |
780 | //\r | |
0c18794e | 781 | Status = PeiServicesInstallPpi (&mTpmInitializedPpiList);\r |
782 | ASSERT_EFI_ERROR (Status);\r | |
783 | }\r | |
784 | \r | |
785 | if (mImageInMemory) {\r | |
786 | Status = PeimEntryMP ((EFI_PEI_SERVICES**)PeiServices);\r | |
83a276f6 | 787 | return Status;\r |
0c18794e | 788 | }\r |
789 | \r | |
83a276f6 | 790 | Done:\r |
3dd05ac3 JY |
791 | if (EFI_ERROR (Status)) {\r |
792 | DEBUG ((EFI_D_ERROR, "TPM error! Build Hob\n"));\r | |
793 | BuildGuidHob (&gTpmErrorHobGuid,0);\r | |
794 | REPORT_STATUS_CODE (\r | |
795 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
796 | (PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)\r | |
797 | );\r | |
798 | }\r | |
83a276f6 JY |
799 | //\r |
800 | // Always intall TpmInitializationDonePpi no matter success or fail.\r | |
801 | // Other driver can know TPM initialization state by TpmInitializedPpi.\r | |
802 | //\r | |
803 | Status2 = PeiServicesInstallPpi (&mTpmInitializationDonePpiList);\r | |
804 | ASSERT_EFI_ERROR (Status2);\r | |
805 | \r | |
0c18794e | 806 | return Status;\r |
807 | }\r |