projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3cbfba02 DW |
1 | /** @file\r |
| 2 | This PEIM will parse the hoblist from fsp and report them into pei core.\r | |
| 3 | This file contains the main entrypoint of the PEIM.\r | |
| 4 | \r | |
| 5 | Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r | |
| 9dc8036d | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 3cbfba02 DW |
7 | \r |
| 8 | **/\r | |
| 9 | \r | |
| 10 | \r | |
| 11 | #include <PiPei.h>\r | |
| 12 | #include <Library/DebugLib.h>\r | |
| 13 | \r | |
| 14 | #include <Ppi/TopOfTemporaryRam.h>\r | |
| 15 | #include <Ppi/SecPlatformInformation.h>\r | |
| 16 | \r | |
| 17 | /**\r | |
| 18 | Save BIST value before call FspInit.\r | |
| 19 | \r | |
| 20 | @param Bist BIST value.\r | |
| 21 | **/\r | |
| 22 | VOID\r | |
| 23 | AsmSaveBistValue (\r | |
| 24 | IN UINT32 Bist\r | |
| 25 | );\r | |
| 26 | \r | |
| 27 | /**\r | |
| 28 | Save Ticker value before call FspInit.\r | |
| 29 | \r | |
| 30 | @param Ticker Ticker value.\r | |
| 31 | **/\r | |
| 32 | VOID\r | |
| 33 | AsmSaveTickerValue (\r | |
| 34 | IN UINT64 Ticker\r | |
| 35 | );\r | |
| 36 | \r | |
| 37 | /**\r | |
| 38 | Save SEC context before call FspInit.\r | |
| 39 | \r | |
| 40 | @param PeiServices Pointer to PEI Services Table.\r | |
| 41 | **/\r | |
| 42 | VOID\r | |
| 43 | EFIAPI\r | |
| 44 | SaveSecContext (\r | |
| 45 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
| 46 | )\r | |
| 47 | {\r | |
| 48 | UINT32 *Bist;\r | |
| 49 | UINT64 *Ticker;\r | |
| 50 | UINT32 Size;\r | |
| 51 | UINT32 Count;\r | |
| 52 | UINT32 TopOfTemporaryRam;\r | |
| 53 | VOID *TopOfTemporaryRamPpi;\r | |
| 54 | EFI_STATUS Status;\r | |
| 55 | \r | |
| 56 | DEBUG ((DEBUG_INFO, "SaveSecContext - 0x%x\n", PeiServices));\r | |
| 57 | \r | |
| 58 | Status = (*PeiServices)->LocatePpi (\r | |
| 59 | PeiServices,\r | |
| 60 | &gTopOfTemporaryRamPpiGuid,\r | |
| 61 | 0,\r | |
| 62 | NULL,\r | |
| 63 | (VOID **) &TopOfTemporaryRamPpi\r | |
| 64 | );\r | |
| 65 | if (EFI_ERROR (Status)) {\r | |
| 66 | return ;\r | |
| 67 | }\r | |
| 68 | \r | |
| 69 | DEBUG ((DEBUG_INFO, "TopOfTemporaryRamPpi - 0x%x\n", TopOfTemporaryRamPpi));\r | |
| 70 | \r | |
| 71 | //\r | |
| 72 | // The entries of BIST information, together with the number of them,\r | |
| 73 | // reside in the bottom of stack, left untouched by normal stack operation.\r | |
| 74 | // This routine copies the BIST information to the buffer pointed by\r | |
| 75 | // PlatformInformationRecord for output.\r | |
| 76 | //\r | |
| 77 | // |--------------| <- TopOfTemporaryRam\r | |
| 78 | // |Number of BSPs|\r | |
| 79 | // |--------------|\r | |
| 80 | // | BIST |\r | |
| 81 | // |--------------|\r | |
| 82 | // | .... |\r | |
| 83 | // |--------------|\r | |
| 84 | // | TSC[63:32] |\r | |
| 85 | // |--------------|\r | |
| 86 | // | TSC[31:00] |\r | |
| 87 | // |--------------|\r | |
| 88 | //\r | |
| 89 | \r | |
| 90 | TopOfTemporaryRam = (UINT32)(UINTN)TopOfTemporaryRamPpi - sizeof(UINT32);\r | |
| 91 | TopOfTemporaryRam -= sizeof(UINT32) * 2;\r | |
| 92 | DEBUG ((DEBUG_INFO, "TopOfTemporaryRam - 0x%x\n", TopOfTemporaryRam));\r | |
| 93 | Count = *(UINT32 *)(UINTN)(TopOfTemporaryRam - sizeof(UINT32));\r | |
| 94 | DEBUG ((DEBUG_INFO, "Count - 0x%x\n", Count));\r | |
| 95 | Size = Count * sizeof (IA32_HANDOFF_STATUS);\r | |
| 96 | DEBUG ((DEBUG_INFO, "Size - 0x%x\n", Size));\r | |
| 97 | \r | |
| 98 | Bist = (UINT32 *)(UINTN)(TopOfTemporaryRam - sizeof(UINT32) - Size);\r | |
| 99 | DEBUG ((DEBUG_INFO, "Bist - 0x%x\n", *Bist));\r | |
| 100 | Ticker = (UINT64 *)(UINTN)(TopOfTemporaryRam - sizeof(UINT32) - Size - sizeof(UINT64));\r | |
| 101 | DEBUG ((DEBUG_INFO, "Ticker - 0x%lx\n", *Ticker));\r | |
| 102 | \r | |
| 103 | //\r | |
| 104 | // Just need record BSP\r | |
| 105 | //\r | |
| 106 | AsmSaveBistValue (*Bist);\r | |
| 107 | AsmSaveTickerValue (*Ticker);\r | |
| 108 | }\r |