projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| a4867dea SB |
1 | /** @file\r |
| 2 | \r | |
| 3 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r | |
| 4 | Copyright (c) Microsoft Corporation.<BR>\r | |
| 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 6 | \r | |
| 7 | **/\r | |
| 8 | \r | |
| 9 | #include <PiPei.h>\r | |
| 10 | #include <Library/PeiServicesLib.h>\r | |
| 11 | #include <Library/DebugLib.h>\r | |
| 12 | #include <Library/BaseMemoryLib.h>\r | |
| 13 | #include <Library/MemoryAllocationLib.h>\r | |
| 14 | #include <Library/HobLib.h>\r | |
| 15 | #include <Library/Tpm2CommandLib.h>\r | |
| 16 | #include <Library/Tpm2DeviceLib.h>\r | |
| 17 | #include <Library/TpmPlatformHierarchyLib.h>\r | |
| 18 | #include <Library/RngLib.h>\r | |
| 19 | \r | |
| 20 | #include <Ppi/EndOfPeiPhase.h>\r | |
| 21 | \r | |
| 22 | #define MAX_NEW_AUTHORIZATION_SIZE SHA512_DIGEST_SIZE\r | |
| 23 | \r | |
| 24 | /**\r | |
| 25 | This function handles PlatformInit task at the end of PEI\r | |
| 26 | \r | |
| 27 | @param[in] PeiServices Pointer to PEI Services Table.\r | |
| 28 | @param[in] NotifyDesc Pointer to the descriptor for the Notification event that\r | |
| 29 | caused this function to execute.\r | |
| 30 | @param[in] Ppi Pointer to the PPI data associated with this function.\r | |
| 31 | \r | |
| 32 | @retval EFI_SUCCESS The function completes successfully\r | |
| 33 | @retval others\r | |
| 34 | **/\r | |
| 35 | EFI_STATUS\r | |
| 36 | EFIAPI\r | |
| 37 | PlatformInitEndOfPei (\r | |
| 38 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
| 39 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
| 40 | IN VOID *Ppi\r | |
| 41 | )\r | |
| 42 | {\r | |
| 43 | VOID *TcgEventLog;\r | |
| 44 | \r | |
| 45 | //\r | |
| 46 | // Try to get TcgEventLog in S3 to see if S3 error is reported.\r | |
| 47 | //\r | |
| 48 | TcgEventLog = GetFirstGuidHob(&gTcgEventEntryHobGuid);\r | |
| 49 | if (TcgEventLog == NULL) {\r | |
| 50 | TcgEventLog = GetFirstGuidHob(&gTcgEvent2EntryHobGuid);\r | |
| 51 | }\r | |
| 52 | \r | |
| 53 | if (TcgEventLog == NULL) {\r | |
| 54 | //\r | |
| 55 | // no S3 error reported\r | |
| 56 | //\r | |
| 57 | return EFI_SUCCESS;\r | |
| 58 | }\r | |
| 59 | \r | |
| 60 | //\r | |
| 61 | // If there is S3 error on TPM_SU_STATE and success on TPM_SU_CLEAR,\r | |
| 62 | // configure the TPM Platform Hierarchy.\r | |
| 63 | //\r | |
| 64 | ConfigureTpmPlatformHierarchy ();\r | |
| 65 | \r | |
| 66 | return EFI_SUCCESS;\r | |
| 67 | }\r | |
| 68 | \r | |
| 69 | static EFI_PEI_NOTIFY_DESCRIPTOR mEndOfPeiNotifyList = {\r | |
| 70 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
| 71 | &gEfiEndOfPeiSignalPpiGuid,\r | |
| 72 | (EFI_PEIM_NOTIFY_ENTRY_POINT)PlatformInitEndOfPei\r | |
| 73 | };\r | |
| 74 | \r | |
| 75 | /**\r | |
| 76 | Main entry\r | |
| 77 | \r | |
| 78 | @param[in] FileHandle Handle of the file being invoked.\r | |
| 79 | @param[in] PeiServices Pointer to PEI Services table.\r | |
| 80 | \r | |
| 81 | @retval EFI_SUCCESS Install function successfully.\r | |
| 82 | \r | |
| 83 | **/\r | |
| 84 | EFI_STATUS\r | |
| 85 | EFIAPI\r | |
| 86 | Tcg2PlatformPeiEntryPoint (\r | |
| 87 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
| 88 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
| 89 | )\r | |
| 90 | {\r | |
| 91 | EFI_STATUS Status;\r | |
| 92 | EFI_BOOT_MODE BootMode;\r | |
| 93 | \r | |
| 94 | Status = PeiServicesGetBootMode (&BootMode);\r | |
| 95 | ASSERT_EFI_ERROR(Status);\r | |
| 96 | \r | |
| 97 | if (BootMode != BOOT_ON_S3_RESUME) {\r | |
| 98 | return EFI_SUCCESS;\r | |
| 99 | }\r | |
| 100 | \r | |
| 101 | //\r | |
| 102 | // Performing PlatformInitEndOfPei after EndOfPei PPI produced\r | |
| 103 | //\r | |
| 104 | Status = PeiServicesNotifyPpi (&mEndOfPeiNotifyList);\r | |
| 105 | \r | |
| 106 | return Status;\r | |
| 107 | }\r |