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0c18794e | 1 | /** @file\r |
2 | Initialize TPM device and measure FVs before handing off control to DXE.\r | |
3 | \r | |
5a500332 | 4 | Copyright (c) 2005 - 2012, 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 | |
20 | #include <Ppi/LockPhysicalPresence.h>\r | |
21 | #include <Ppi/TpmInitialized.h>\r | |
22 | #include <Ppi/FirmwareVolume.h>\r | |
2aadc920 | 23 | #include <Ppi/EndOfPeiPhase.h>\r |
24 | \r | |
0c18794e | 25 | #include <Guid/TcgEventHob.h>\r |
0758c830 | 26 | #include <Guid/MeasuredFvHob.h>\r |
2aadc920 | 27 | \r |
0c18794e | 28 | #include <Library/DebugLib.h>\r |
29 | #include <Library/BaseMemoryLib.h>\r | |
30 | #include <Library/PeiServicesLib.h>\r | |
31 | #include <Library/PeimEntryPoint.h>\r | |
32 | #include <Library/TpmCommLib.h>\r | |
33 | #include <Library/HobLib.h>\r | |
34 | #include <Library/PcdLib.h>\r | |
35 | #include <Library/PeiServicesTablePointerLib.h>\r | |
333a53ee | 36 | #include <Library/BaseLib.h>\r |
0c18794e | 37 | \r |
38 | #include "TpmComm.h"\r | |
39 | \r | |
40 | BOOLEAN mImageInMemory = FALSE;\r | |
41 | \r | |
42 | EFI_PEI_PPI_DESCRIPTOR mTpmInitializedPpiList = {\r | |
43 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
44 | &gPeiTpmInitializedPpiGuid,\r | |
45 | NULL\r | |
46 | };\r | |
47 | \r | |
2aadc920 | 48 | EFI_PLATFORM_FIRMWARE_BLOB mMeasuredBaseFvInfo[FixedPcdGet32 (PcdPeiCoreMaxFvSupported)];\r |
49 | UINT32 mMeasuredBaseFvIndex = 0;\r | |
50 | \r | |
51 | EFI_PLATFORM_FIRMWARE_BLOB mMeasuredChildFvInfo[FixedPcdGet32 (PcdPeiCoreMaxFvSupported)];\r | |
52 | UINT32 mMeasuredChildFvIndex = 0;\r | |
53 | \r | |
0c18794e | 54 | /**\r |
55 | Lock physical presence if needed.\r | |
56 | \r | |
57 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
58 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
59 | @param[in] Ppi Address of the PPI that was installed.\r | |
60 | \r | |
61 | @retval EFI_SUCCESS Operation completed successfully.\r | |
62 | \r | |
63 | **/\r | |
64 | EFI_STATUS\r | |
65 | EFIAPI\r | |
66 | PhysicalPresencePpiNotifyCallback (\r | |
67 | IN EFI_PEI_SERVICES **PeiServices,\r | |
68 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
69 | IN VOID *Ppi\r | |
70 | );\r | |
71 | \r | |
72 | /**\r | |
73 | Measure and record the Firmware Volum Information once FvInfoPPI install.\r | |
74 | \r | |
75 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
76 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
77 | @param[in] Ppi Address of the PPI that was installed.\r | |
78 | \r | |
79 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
80 | @return Others Fail to measure FV.\r | |
81 | \r | |
82 | **/\r | |
83 | EFI_STATUS\r | |
84 | EFIAPI\r | |
85 | FirmwareVolmeInfoPpiNotifyCallback (\r | |
86 | IN EFI_PEI_SERVICES **PeiServices,\r | |
87 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
88 | IN VOID *Ppi\r | |
89 | );\r | |
90 | \r | |
2aadc920 | 91 | /**\r |
92 | Record all measured Firmware Volum Information into a Guid Hob\r | |
93 | \r | |
94 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
95 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
96 | @param[in] Ppi Address of the PPI that was installed.\r | |
97 | \r | |
98 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
99 | @return Others Fail to measure FV.\r | |
100 | \r | |
101 | **/\r | |
102 | EFI_STATUS\r | |
103 | EFIAPI\r | |
104 | EndofPeiSignalNotifyCallBack (\r | |
105 | IN EFI_PEI_SERVICES **PeiServices,\r | |
106 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
107 | IN VOID *Ppi\r | |
108 | );\r | |
109 | \r | |
0c18794e | 110 | EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList[] = {\r |
111 | {\r | |
112 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r | |
113 | &gPeiLockPhysicalPresencePpiGuid,\r | |
114 | PhysicalPresencePpiNotifyCallback\r | |
115 | },\r | |
116 | {\r | |
2aadc920 | 117 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
0c18794e | 118 | &gEfiPeiFirmwareVolumeInfoPpiGuid,\r |
119 | FirmwareVolmeInfoPpiNotifyCallback \r | |
2aadc920 | 120 | },\r |
121 | {\r | |
122 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
123 | &gEfiEndOfPeiSignalPpiGuid,\r | |
124 | EndofPeiSignalNotifyCallBack\r | |
0c18794e | 125 | }\r |
126 | };\r | |
127 | \r | |
2aadc920 | 128 | /**\r |
129 | Record all measured Firmware Volum Information into a Guid Hob\r | |
130 | Guid Hob payload layout is \r | |
131 | \r | |
132 | UINT32 *************************** FIRMWARE_BLOB number\r | |
133 | EFI_PLATFORM_FIRMWARE_BLOB******** BLOB Array\r | |
134 | \r | |
135 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
136 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
137 | @param[in] Ppi Address of the PPI that was installed.\r | |
138 | \r | |
139 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
140 | @return Others Fail to measure FV.\r | |
141 | \r | |
142 | **/\r | |
143 | EFI_STATUS\r | |
144 | EFIAPI\r | |
145 | EndofPeiSignalNotifyCallBack (\r | |
146 | IN EFI_PEI_SERVICES **PeiServices,\r | |
147 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
148 | IN VOID *Ppi\r | |
149 | )\r | |
150 | { \r | |
0758c830 | 151 | MEASURED_HOB_DATA *MeasuredHobData;\r |
2aadc920 | 152 | \r |
0758c830 | 153 | MeasuredHobData = NULL;\r |
2aadc920 | 154 | \r |
155 | //\r | |
0758c830 | 156 | // Create a Guid hob to save all measured Fv \r |
2aadc920 | 157 | //\r |
0758c830 | 158 | MeasuredHobData = BuildGuidHob(\r |
159 | &gMeasuredFvHobGuid,\r | |
160 | sizeof(UINTN) + sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex + mMeasuredChildFvIndex)\r | |
161 | );\r | |
2aadc920 | 162 | \r |
0758c830 | 163 | if (MeasuredHobData != NULL){\r |
2aadc920 | 164 | //\r |
165 | // Save measured FV info enty number\r | |
166 | //\r | |
0758c830 | 167 | MeasuredHobData->Num = mMeasuredBaseFvIndex + mMeasuredChildFvIndex;\r |
2aadc920 | 168 | \r |
2aadc920 | 169 | //\r |
170 | // Save measured base Fv info\r | |
171 | //\r | |
0758c830 | 172 | CopyMem (MeasuredHobData->MeasuredFvBuf, mMeasuredBaseFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredBaseFvIndex));\r |
2aadc920 | 173 | \r |
2aadc920 | 174 | //\r |
175 | // Save measured child Fv info\r | |
176 | //\r | |
0758c830 | 177 | CopyMem (&MeasuredHobData->MeasuredFvBuf[mMeasuredBaseFvIndex] , mMeasuredChildFvInfo, sizeof(EFI_PLATFORM_FIRMWARE_BLOB) * (mMeasuredChildFvIndex));\r |
2aadc920 | 178 | }\r |
179 | \r | |
180 | return EFI_SUCCESS;\r | |
181 | }\r | |
0c18794e | 182 | \r |
183 | /**\r | |
184 | Do a hash operation on a data buffer, extend a specific TPM PCR with the hash result,\r | |
185 | and build a GUIDed HOB recording the event which will be passed to the DXE phase and\r | |
186 | added into the Event Log.\r | |
187 | \r | |
188 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
189 | @param[in] HashData Physical address of the start of the data buffer \r | |
190 | to be hashed, extended, and logged.\r | |
191 | @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData.\r | |
192 | @param[in] TpmHandle TPM handle.\r | |
193 | @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure. \r | |
194 | @param[in] NewEventData Pointer to the new event data. \r | |
195 | \r | |
196 | @retval EFI_SUCCESS Operation completed successfully.\r | |
197 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
198 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
199 | \r | |
200 | **/\r | |
201 | EFI_STATUS\r | |
202 | HashLogExtendEvent (\r | |
203 | IN EFI_PEI_SERVICES **PeiServices,\r | |
204 | IN UINT8 *HashData,\r | |
205 | IN UINTN HashDataLen,\r | |
206 | IN TIS_TPM_HANDLE TpmHandle,\r | |
207 | IN TCG_PCR_EVENT_HDR *NewEventHdr,\r | |
208 | IN UINT8 *NewEventData\r | |
209 | )\r | |
210 | {\r | |
211 | EFI_STATUS Status;\r | |
212 | VOID *HobData;\r | |
213 | \r | |
214 | HobData = NULL;\r | |
215 | if (HashDataLen != 0) {\r | |
216 | Status = TpmCommHashAll (\r | |
217 | HashData,\r | |
218 | HashDataLen,\r | |
219 | &NewEventHdr->Digest\r | |
220 | );\r | |
221 | ASSERT_EFI_ERROR (Status);\r | |
222 | }\r | |
223 | \r | |
224 | Status = TpmCommExtend (\r | |
225 | PeiServices,\r | |
226 | TpmHandle,\r | |
227 | &NewEventHdr->Digest,\r | |
228 | NewEventHdr->PCRIndex,\r | |
229 | NULL\r | |
230 | );\r | |
231 | ASSERT_EFI_ERROR (Status);\r | |
232 | \r | |
233 | HobData = BuildGuidHob (\r | |
234 | &gTcgEventEntryHobGuid,\r | |
235 | sizeof (*NewEventHdr) + NewEventHdr->EventSize\r | |
236 | );\r | |
237 | if (HobData == NULL) {\r | |
238 | return EFI_OUT_OF_RESOURCES;\r | |
239 | }\r | |
240 | \r | |
241 | CopyMem (HobData, NewEventHdr, sizeof (*NewEventHdr));\r | |
242 | HobData = (VOID *) ((UINT8*)HobData + sizeof (*NewEventHdr));\r | |
243 | CopyMem (HobData, NewEventData, NewEventHdr->EventSize);\r | |
244 | return EFI_SUCCESS;\r | |
245 | }\r | |
246 | \r | |
247 | /**\r | |
248 | Measure CRTM version.\r | |
249 | \r | |
250 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
251 | @param[in] TpmHandle TPM handle.\r | |
252 | \r | |
253 | @retval EFI_SUCCESS Operation completed successfully.\r | |
254 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
255 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
256 | \r | |
257 | **/\r | |
258 | EFI_STATUS\r | |
259 | EFIAPI\r | |
260 | MeasureCRTMVersion (\r | |
261 | IN EFI_PEI_SERVICES **PeiServices,\r | |
262 | IN TIS_TPM_HANDLE TpmHandle\r | |
263 | )\r | |
264 | {\r | |
265 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
266 | \r | |
267 | //\r | |
333a53ee | 268 | // Use FirmwareVersion string to represent CRTM version.\r |
0c18794e | 269 | // OEMs should get real CRTM version string and measure it.\r |
270 | //\r | |
271 | \r | |
272 | TcgEventHdr.PCRIndex = 0;\r | |
273 | TcgEventHdr.EventType = EV_S_CRTM_VERSION;\r | |
8cc06814 | 274 | TcgEventHdr.EventSize = (UINT32) StrSize((CHAR16*)PcdGetPtr (PcdFirmwareVersionString));\r |
333a53ee | 275 | \r |
0c18794e | 276 | return HashLogExtendEvent (\r |
277 | PeiServices,\r | |
333a53ee | 278 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString),\r |
0c18794e | 279 | TcgEventHdr.EventSize,\r |
280 | TpmHandle,\r | |
281 | &TcgEventHdr,\r | |
333a53ee | 282 | (UINT8*)PcdGetPtr (PcdFirmwareVersionString)\r |
0c18794e | 283 | );\r |
284 | }\r | |
285 | \r | |
286 | /**\r | |
287 | Measure FV image. \r | |
288 | Add it into the measured FV list after the FV is measured successfully. \r | |
289 | \r | |
290 | @param[in] FvBase Base address of FV image.\r | |
291 | @param[in] FvLength Length of FV image.\r | |
292 | \r | |
293 | @retval EFI_SUCCESS Fv image is measured successfully \r | |
294 | or it has been already measured.\r | |
295 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
296 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
297 | \r | |
298 | **/\r | |
299 | EFI_STATUS\r | |
300 | EFIAPI\r | |
301 | MeasureFvImage (\r | |
302 | IN EFI_PHYSICAL_ADDRESS FvBase,\r | |
303 | IN UINT64 FvLength\r | |
304 | )\r | |
305 | {\r | |
306 | UINT32 Index;\r | |
307 | EFI_STATUS Status;\r | |
308 | EFI_PLATFORM_FIRMWARE_BLOB FvBlob;\r | |
309 | TCG_PCR_EVENT_HDR TcgEventHdr;\r | |
310 | TIS_TPM_HANDLE TpmHandle;\r | |
311 | \r | |
312 | TpmHandle = (TIS_TPM_HANDLE) (UINTN) TPM_BASE_ADDRESS;\r | |
313 | \r | |
314 | //\r | |
315 | // Check whether FV is in the measured FV list.\r | |
316 | //\r | |
2aadc920 | 317 | for (Index = 0; Index < mMeasuredBaseFvIndex; Index ++) {\r |
318 | if (mMeasuredBaseFvInfo[Index].BlobBase == FvBase) {\r | |
0c18794e | 319 | return EFI_SUCCESS;\r |
320 | }\r | |
321 | }\r | |
322 | \r | |
323 | //\r | |
324 | // Measure and record the FV to the TPM\r | |
325 | //\r | |
326 | FvBlob.BlobBase = FvBase;\r | |
327 | FvBlob.BlobLength = FvLength;\r | |
328 | \r | |
329 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei starts at: 0x%x\n", FvBlob.BlobBase));\r | |
330 | DEBUG ((DEBUG_INFO, "The FV which is measured by TcgPei has the size: 0x%x\n", FvBlob.BlobLength));\r | |
331 | \r | |
332 | TcgEventHdr.PCRIndex = 0;\r | |
333 | TcgEventHdr.EventType = EV_EFI_PLATFORM_FIRMWARE_BLOB;\r | |
334 | TcgEventHdr.EventSize = sizeof (FvBlob);\r | |
335 | \r | |
336 | Status = HashLogExtendEvent (\r | |
337 | (EFI_PEI_SERVICES **) GetPeiServicesTablePointer(),\r | |
338 | (UINT8*) (UINTN) FvBlob.BlobBase,\r | |
339 | (UINTN) FvBlob.BlobLength,\r | |
340 | TpmHandle,\r | |
341 | &TcgEventHdr,\r | |
342 | (UINT8*) &FvBlob\r | |
343 | );\r | |
344 | ASSERT_EFI_ERROR (Status);\r | |
345 | \r | |
346 | //\r | |
347 | // Add new FV into the measured FV list.\r | |
348 | //\r | |
2aadc920 | 349 | ASSERT (mMeasuredBaseFvIndex < FixedPcdGet32 (PcdPeiCoreMaxFvSupported));\r |
350 | if (mMeasuredBaseFvIndex < FixedPcdGet32 (PcdPeiCoreMaxFvSupported)) {\r | |
351 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobBase = FvBase;\r | |
352 | mMeasuredBaseFvInfo[mMeasuredBaseFvIndex].BlobLength = FvLength;\r | |
353 | mMeasuredBaseFvIndex++;\r | |
0c18794e | 354 | }\r |
355 | \r | |
356 | return Status;\r | |
357 | }\r | |
358 | \r | |
359 | /**\r | |
360 | Measure main BIOS.\r | |
361 | \r | |
362 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
363 | @param[in] TpmHandle TPM handle.\r | |
364 | \r | |
365 | @retval EFI_SUCCESS Operation completed successfully.\r | |
366 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
367 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
368 | \r | |
369 | **/\r | |
370 | EFI_STATUS\r | |
371 | EFIAPI\r | |
372 | MeasureMainBios (\r | |
373 | IN EFI_PEI_SERVICES **PeiServices,\r | |
374 | IN TIS_TPM_HANDLE TpmHandle\r | |
375 | )\r | |
376 | {\r | |
377 | EFI_STATUS Status;\r | |
378 | UINT32 FvInstances;\r | |
379 | EFI_PEI_FV_HANDLE VolumeHandle;\r | |
380 | EFI_FV_INFO VolumeInfo;\r | |
381 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
382 | \r | |
383 | FvInstances = 0;\r | |
384 | while (TRUE) {\r | |
385 | //\r | |
386 | // Traverse all firmware volume instances of Static Core Root of Trust for Measurement\r | |
387 | // (S-CRTM), this firmware volume measure policy can be modified/enhanced by special\r | |
388 | // platform for special CRTM TPM measuring.\r | |
389 | //\r | |
390 | Status = PeiServicesFfsFindNextVolume (FvInstances, &VolumeHandle);\r | |
391 | if (EFI_ERROR (Status)) {\r | |
392 | break;\r | |
393 | }\r | |
394 | \r | |
395 | //\r | |
396 | // Measure and record the firmware volume that is dispatched by PeiCore\r | |
397 | //\r | |
398 | Status = PeiServicesFfsGetVolumeInfo (VolumeHandle, &VolumeInfo);\r | |
399 | ASSERT_EFI_ERROR (Status);\r | |
400 | //\r | |
401 | // Locate the corresponding FV_PPI according to founded FV's format guid\r | |
402 | //\r | |
403 | Status = PeiServicesLocatePpi (\r | |
404 | &VolumeInfo.FvFormat, \r | |
405 | 0, \r | |
406 | NULL,\r | |
407 | (VOID**)&FvPpi\r | |
408 | );\r | |
409 | if (!EFI_ERROR (Status)) {\r | |
410 | MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) VolumeInfo.FvStart, VolumeInfo.FvSize);\r | |
411 | }\r | |
412 | \r | |
413 | FvInstances++;\r | |
414 | }\r | |
415 | \r | |
416 | return EFI_SUCCESS;\r | |
417 | }\r | |
418 | \r | |
419 | /**\r | |
420 | Measure and record the Firmware Volum Information once FvInfoPPI install.\r | |
421 | \r | |
422 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
423 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
424 | @param[in] Ppi Address of the PPI that was installed.\r | |
425 | \r | |
426 | @retval EFI_SUCCESS The FV Info is measured and recorded to TPM.\r | |
427 | @return Others Fail to measure FV.\r | |
428 | \r | |
429 | **/\r | |
430 | EFI_STATUS\r | |
431 | EFIAPI\r | |
432 | FirmwareVolmeInfoPpiNotifyCallback (\r | |
433 | IN EFI_PEI_SERVICES **PeiServices,\r | |
434 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
435 | IN VOID *Ppi\r | |
436 | )\r | |
437 | {\r | |
438 | EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *Fv;\r | |
439 | EFI_STATUS Status;\r | |
440 | EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r | |
441 | \r | |
442 | Fv = (EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *) Ppi;\r | |
443 | \r | |
444 | //\r | |
445 | // The PEI Core can not dispatch or load files from memory mapped FVs that do not support FvPpi.\r | |
446 | //\r | |
447 | Status = PeiServicesLocatePpi (\r | |
448 | &Fv->FvFormat, \r | |
449 | 0, \r | |
450 | NULL,\r | |
451 | (VOID**)&FvPpi\r | |
452 | );\r | |
453 | if (EFI_ERROR (Status)) {\r | |
454 | return EFI_SUCCESS;\r | |
455 | }\r | |
456 | \r | |
457 | //\r | |
458 | // This is an FV from an FFS file, and the parent FV must have already been measured,\r | |
2aadc920 | 459 | // No need to measure twice, so just record the FV and return\r |
0c18794e | 460 | //\r |
461 | if (Fv->ParentFvName != NULL || Fv->ParentFileName != NULL ) {\r | |
2aadc920 | 462 | \r |
463 | ASSERT (mMeasuredChildFvIndex < FixedPcdGet32 (PcdPeiCoreMaxFvSupported));\r | |
464 | if (mMeasuredChildFvIndex < FixedPcdGet32 (PcdPeiCoreMaxFvSupported)) {\r | |
465 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobBase = (EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo;\r | |
466 | mMeasuredChildFvInfo[mMeasuredChildFvIndex].BlobLength = Fv->FvInfoSize;\r | |
467 | mMeasuredChildFvIndex++;\r | |
468 | }\r | |
0c18794e | 469 | return EFI_SUCCESS;\r |
470 | }\r | |
471 | \r | |
472 | return MeasureFvImage ((EFI_PHYSICAL_ADDRESS) (UINTN) Fv->FvInfo, Fv->FvInfoSize);\r | |
473 | }\r | |
474 | \r | |
475 | /**\r | |
5a500332 | 476 | Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by corresponding PCDs.\r |
477 | And lock physical presence if needed.\r | |
0c18794e | 478 | \r |
479 | @param[in] PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
480 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
481 | @param[in] Ppi Address of the PPI that was installed.\r | |
482 | \r | |
483 | @retval EFI_SUCCESS Operation completed successfully.\r | |
484 | @retval EFI_ABORTED physicalPresenceCMDEnable is locked.\r | |
485 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
486 | \r | |
487 | **/\r | |
488 | EFI_STATUS\r | |
489 | EFIAPI\r | |
490 | PhysicalPresencePpiNotifyCallback (\r | |
491 | IN EFI_PEI_SERVICES **PeiServices,\r | |
492 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
493 | IN VOID *Ppi\r | |
494 | )\r | |
495 | {\r | |
496 | EFI_STATUS Status;\r | |
497 | PEI_LOCK_PHYSICAL_PRESENCE_PPI *LockPhysicalPresencePpi;\r | |
498 | BOOLEAN LifetimeLock;\r | |
499 | BOOLEAN CmdEnable;\r | |
500 | TIS_TPM_HANDLE TpmHandle;\r | |
5a500332 | 501 | TPM_PHYSICAL_PRESENCE PhysicalPresenceValue;\r |
0c18794e | 502 | \r |
503 | TpmHandle = (TIS_TPM_HANDLE) (UINTN) TPM_BASE_ADDRESS;\r | |
0c18794e | 504 | \r |
5a500332 | 505 | Status = TpmCommGetCapability (PeiServices, TpmHandle, NULL, &LifetimeLock, &CmdEnable);\r |
506 | if (EFI_ERROR (Status)) {\r | |
507 | return Status;\r | |
0c18794e | 508 | }\r |
509 | \r | |
510 | //\r | |
5a500332 | 511 | // 1. Set physicalPresenceLifetimeLock, physicalPresenceHWEnable and physicalPresenceCMDEnable bit by PCDs.\r |
0c18794e | 512 | //\r |
5a500332 | 513 | if (PcdGetBool (PcdPhysicalPresenceLifetimeLock) && !LifetimeLock) {\r |
514 | //\r | |
515 | // Lock TPM LifetimeLock is required, and LifetimeLock is not locked yet. \r | |
516 | //\r | |
517 | PhysicalPresenceValue = TPM_PHYSICAL_PRESENCE_LIFETIME_LOCK;\r | |
518 | \r | |
519 | if (PcdGetBool (PcdPhysicalPresenceCmdEnable)) {\r | |
520 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_ENABLE;\r | |
521 | CmdEnable = TRUE;\r | |
522 | } else {\r | |
523 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_CMD_DISABLE;\r | |
524 | CmdEnable = FALSE;\r | |
525 | }\r | |
0c18794e | 526 | \r |
5a500332 | 527 | if (PcdGetBool (PcdPhysicalPresenceHwEnable)) {\r |
528 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_ENABLE;\r | |
529 | } else {\r | |
530 | PhysicalPresenceValue |= TPM_PHYSICAL_PRESENCE_HW_DISABLE;\r | |
531 | } \r | |
532 | \r | |
533 | Status = TpmCommPhysicalPresence (\r | |
534 | PeiServices,\r | |
535 | TpmHandle,\r | |
536 | PhysicalPresenceValue\r | |
537 | );\r | |
538 | if (EFI_ERROR (Status)) {\r | |
539 | return Status;\r | |
540 | }\r | |
541 | }\r | |
542 | \r | |
543 | //\r | |
544 | // 2. Lock physical presence if it is required.\r | |
545 | //\r | |
546 | LockPhysicalPresencePpi = (PEI_LOCK_PHYSICAL_PRESENCE_PPI *) Ppi;\r | |
547 | if (!LockPhysicalPresencePpi->LockPhysicalPresence ((CONST EFI_PEI_SERVICES**) PeiServices)) {\r | |
548 | return EFI_SUCCESS;\r | |
0c18794e | 549 | }\r |
550 | \r | |
551 | if (!CmdEnable) {\r | |
552 | if (LifetimeLock) {\r | |
553 | //\r | |
554 | // physicalPresenceCMDEnable is locked, can't change.\r | |
555 | //\r | |
556 | return EFI_ABORTED;\r | |
557 | }\r | |
558 | \r | |
559 | //\r | |
560 | // Enable physical presence command\r | |
561 | // It is necessary in order to lock physical presence\r | |
562 | //\r | |
563 | Status = TpmCommPhysicalPresence (\r | |
564 | PeiServices,\r | |
565 | TpmHandle,\r | |
566 | TPM_PHYSICAL_PRESENCE_CMD_ENABLE\r | |
567 | );\r | |
568 | if (EFI_ERROR (Status)) {\r | |
569 | return Status;\r | |
570 | }\r | |
571 | }\r | |
572 | \r | |
573 | //\r | |
574 | // Lock physical presence\r | |
575 | // \r | |
576 | Status = TpmCommPhysicalPresence (\r | |
577 | PeiServices,\r | |
578 | TpmHandle,\r | |
579 | TPM_PHYSICAL_PRESENCE_LOCK\r | |
580 | );\r | |
581 | return Status;\r | |
582 | }\r | |
583 | \r | |
584 | /**\r | |
585 | Check if TPM chip is activeated or not.\r | |
586 | \r | |
587 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
588 | @param[in] TpmHandle TPM handle.\r | |
589 | \r | |
590 | @retval TRUE TPM is activated.\r | |
591 | @retval FALSE TPM is deactivated.\r | |
592 | \r | |
593 | **/\r | |
594 | BOOLEAN\r | |
595 | EFIAPI\r | |
596 | IsTpmUsable (\r | |
597 | IN EFI_PEI_SERVICES **PeiServices,\r | |
598 | IN TIS_TPM_HANDLE TpmHandle\r | |
599 | )\r | |
600 | {\r | |
601 | EFI_STATUS Status;\r | |
602 | BOOLEAN Deactivated;\r | |
603 | \r | |
604 | Status = TpmCommGetCapability (PeiServices, TpmHandle, &Deactivated, NULL, NULL);\r | |
605 | if (EFI_ERROR (Status)) {\r | |
606 | return FALSE;\r | |
607 | }\r | |
608 | return (BOOLEAN)(!Deactivated); \r | |
609 | }\r | |
610 | \r | |
611 | /**\r | |
612 | Do measurement after memory is ready.\r | |
613 | \r | |
614 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
615 | \r | |
616 | @retval EFI_SUCCESS Operation completed successfully.\r | |
617 | @retval EFI_OUT_OF_RESOURCES No enough memory to log the new event.\r | |
618 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
619 | \r | |
620 | **/\r | |
621 | EFI_STATUS\r | |
622 | EFIAPI\r | |
623 | PeimEntryMP (\r | |
624 | IN EFI_PEI_SERVICES **PeiServices\r | |
625 | )\r | |
626 | {\r | |
627 | EFI_STATUS Status;\r | |
628 | TIS_TPM_HANDLE TpmHandle;\r | |
629 | \r | |
630 | TpmHandle = (TIS_TPM_HANDLE)(UINTN)TPM_BASE_ADDRESS;\r | |
631 | Status = TisPcRequestUseTpm ((TIS_PC_REGISTERS_PTR)TpmHandle);\r | |
632 | if (EFI_ERROR (Status)) {\r | |
633 | return Status;\r | |
634 | }\r | |
635 | \r | |
636 | if (IsTpmUsable (PeiServices, TpmHandle)) {\r | |
637 | Status = MeasureCRTMVersion (PeiServices, TpmHandle);\r | |
638 | ASSERT_EFI_ERROR (Status);\r | |
639 | \r | |
640 | Status = MeasureMainBios (PeiServices, TpmHandle);\r | |
641 | } \r | |
642 | \r | |
643 | //\r | |
644 | // Post callbacks:\r | |
645 | // 1). for the FvInfoPpi services to measure and record\r | |
646 | // the additional Fvs to TPM\r | |
647 | // 2). for the OperatorPresencePpi service to determine whether to \r | |
648 | // lock the TPM\r | |
649 | //\r | |
650 | Status = PeiServicesNotifyPpi (&mNotifyList[0]);\r | |
651 | ASSERT_EFI_ERROR (Status);\r | |
652 | \r | |
653 | return Status;\r | |
654 | }\r | |
655 | \r | |
656 | /**\r | |
657 | Entry point of this module.\r | |
658 | \r | |
659 | @param[in] FileHandle Handle of the file being invoked.\r | |
660 | @param[in] PeiServices Describes the list of possible PEI Services.\r | |
661 | \r | |
662 | @return Status.\r | |
663 | \r | |
664 | **/\r | |
665 | EFI_STATUS\r | |
666 | EFIAPI\r | |
667 | PeimEntryMA (\r | |
668 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
669 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
670 | )\r | |
671 | {\r | |
672 | EFI_STATUS Status;\r | |
673 | EFI_BOOT_MODE BootMode;\r | |
674 | TIS_TPM_HANDLE TpmHandle;\r | |
675 | \r | |
676 | if (PcdGetBool (PcdHideTpmSupport) && PcdGetBool (PcdHideTpm)) {\r | |
677 | return EFI_UNSUPPORTED;\r | |
678 | }\r | |
679 | \r | |
055c829c | 680 | //\r |
681 | // Initialize TPM device\r | |
682 | //\r | |
683 | Status = PeiServicesGetBootMode (&BootMode);\r | |
684 | ASSERT_EFI_ERROR (Status);\r | |
685 | \r | |
686 | //\r | |
687 | // In S3 path, skip shadow logic. no measurement is required\r | |
688 | //\r | |
689 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
690 | Status = (**PeiServices).RegisterForShadow(FileHandle);\r | |
691 | if (Status == EFI_ALREADY_STARTED) {\r | |
692 | mImageInMemory = TRUE;\r | |
693 | } else if (Status == EFI_NOT_FOUND) {\r | |
694 | ASSERT_EFI_ERROR (Status);\r | |
695 | }\r | |
0c18794e | 696 | }\r |
697 | \r | |
698 | if (!mImageInMemory) {\r | |
0c18794e | 699 | TpmHandle = (TIS_TPM_HANDLE)(UINTN)TPM_BASE_ADDRESS;\r |
700 | Status = TisPcRequestUseTpm ((TIS_PC_REGISTERS_PTR)TpmHandle);\r | |
701 | if (EFI_ERROR (Status)) {\r | |
702 | DEBUG ((DEBUG_ERROR, "TPM not detected!\n"));\r | |
703 | return Status;\r | |
704 | }\r | |
705 | \r | |
706 | Status = TpmCommStartup ((EFI_PEI_SERVICES**)PeiServices, TpmHandle, BootMode);\r | |
707 | if (EFI_ERROR (Status) ) {\r | |
708 | return Status;\r | |
709 | }\r | |
710 | Status = TpmCommContinueSelfTest ((EFI_PEI_SERVICES**)PeiServices, TpmHandle);\r | |
711 | if (EFI_ERROR (Status)) {\r | |
712 | return Status;\r | |
713 | }\r | |
714 | Status = PeiServicesInstallPpi (&mTpmInitializedPpiList);\r | |
715 | ASSERT_EFI_ERROR (Status);\r | |
716 | }\r | |
717 | \r | |
718 | if (mImageInMemory) {\r | |
719 | Status = PeimEntryMP ((EFI_PEI_SERVICES**)PeiServices);\r | |
720 | if (EFI_ERROR (Status)) {\r | |
721 | return Status;\r | |
722 | }\r | |
723 | }\r | |
724 | \r | |
725 | return Status;\r | |
726 | }\r |