+++ /dev/null
-/** @file\r
- C functions in SEC\r
-\r
- Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r
- SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-\r
-#include "SecMain.h"\r
-\r
-EFI_PEI_PPI_DESCRIPTOR mPeiSecMainPpi[] = {\r
- {\r
- EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r
- &gTopOfTemporaryRamPpiGuid,\r
- NULL // To be patched later.\r
- },\r
-};\r
-\r
-//\r
-// These are IDT entries pointing to 10:FFFFFFE4h.\r
-//\r
-UINT64 mIdtEntryTemplate = 0xffff8e000010ffe4ULL;\r
-\r
-/**\r
- Caller provided function to be invoked at the end of InitializeDebugAgent().\r
-\r
- Entry point to the C language phase of SEC. After the SEC assembly\r
- code has initialized some temporary memory and set up the stack,\r
- the control is transferred to this function.\r
-\r
- @param[in] Context The first input parameter of InitializeDebugAgent().\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-SecStartupPhase2(\r
- IN VOID *Context\r
- );\r
-\r
-\r
-/**\r
-\r
- Entry point to the C language phase of SEC. After the SEC assembly\r
- code has initialized some temporary memory and set up the stack,\r
- the control is transferred to this function.\r
-\r
- @param[in] SizeOfRam Size of the temporary memory available for use.\r
- @param[in] TempRamBase Base address of temporary ram\r
- @param[in] BootFirmwareVolume Base address of the Boot Firmware Volume.\r
-**/\r
-VOID\r
-EFIAPI\r
-SecStartup (\r
- IN UINT32 SizeOfRam,\r
- IN UINT32 TempRamBase,\r
- IN VOID *BootFirmwareVolume\r
- )\r
-{\r
- EFI_SEC_PEI_HAND_OFF SecCoreData;\r
- IA32_DESCRIPTOR IdtDescriptor;\r
- SEC_IDT_TABLE IdtTableInStack;\r
- UINT32 Index;\r
- UINT32 PeiStackSize;\r
-\r
- PeiStackSize = PcdGet32 (PcdPeiTemporaryRamStackSize);\r
- if (PeiStackSize == 0) {\r
- PeiStackSize = (SizeOfRam >> 1);\r
- }\r
-\r
- ASSERT (PeiStackSize < SizeOfRam);\r
-\r
- //\r
- // Process all libraries constructor function linked to SecCore.\r
- //\r
- ProcessLibraryConstructorList ();\r
-\r
- DEBUG ((DEBUG_INFO, "SecCore - SecStartup\n"));\r
-\r
- //\r
- // Initialize floating point operating environment\r
- // to be compliant with UEFI spec.\r
- //\r
- InitializeFloatingPointUnits ();\r
-\r
-\r
- // |-------------------|---->\r
- // |Idt Table |\r
- // |-------------------|\r
- // |PeiService Pointer | PeiStackSize\r
- // |-------------------|\r
- // | |\r
- // | Stack |\r
- // |-------------------|---->\r
- // | |\r
- // | |\r
- // | Heap | PeiTemporayRamSize\r
- // | |\r
- // | |\r
- // |-------------------|----> TempRamBase\r
-\r
- IdtTableInStack.PeiService = 0;\r
- for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index ++) {\r
- CopyMem ((VOID*)&IdtTableInStack.IdtTable[Index], (VOID*)&mIdtEntryTemplate, sizeof (UINT64));\r
- }\r
-\r
- IdtDescriptor.Base = (UINTN) &IdtTableInStack.IdtTable;\r
- IdtDescriptor.Limit = (UINT16)(sizeof (IdtTableInStack.IdtTable) - 1);\r
-\r
- AsmWriteIdtr (&IdtDescriptor);\r
-\r
- //\r
- // Update the base address and length of Pei temporary memory\r
- //\r
- SecCoreData.DataSize = (UINT16) sizeof (EFI_SEC_PEI_HAND_OFF);\r
- SecCoreData.BootFirmwareVolumeBase = BootFirmwareVolume;\r
- SecCoreData.BootFirmwareVolumeSize = (UINTN)(SIZE_4GB - (UINTN) BootFirmwareVolume);\r
- SecCoreData.TemporaryRamBase = (VOID*)(UINTN) TempRamBase;\r
- SecCoreData.TemporaryRamSize = SizeOfRam;\r
- SecCoreData.PeiTemporaryRamBase = SecCoreData.TemporaryRamBase;\r
- SecCoreData.PeiTemporaryRamSize = SizeOfRam - PeiStackSize;\r
- SecCoreData.StackBase = (VOID*)(UINTN)(TempRamBase + SecCoreData.PeiTemporaryRamSize);\r
- SecCoreData.StackSize = PeiStackSize;\r
-\r
- DEBUG ((DEBUG_INFO, "BootFirmwareVolumeBase - 0x%x\n", SecCoreData.BootFirmwareVolumeBase));\r
- DEBUG ((DEBUG_INFO, "BootFirmwareVolumeSize - 0x%x\n", SecCoreData.BootFirmwareVolumeSize));\r
- DEBUG ((DEBUG_INFO, "TemporaryRamBase - 0x%x\n", SecCoreData.TemporaryRamBase));\r
- DEBUG ((DEBUG_INFO, "TemporaryRamSize - 0x%x\n", SecCoreData.TemporaryRamSize));\r
- DEBUG ((DEBUG_INFO, "PeiTemporaryRamBase - 0x%x\n", SecCoreData.PeiTemporaryRamBase));\r
- DEBUG ((DEBUG_INFO, "PeiTemporaryRamSize - 0x%x\n", SecCoreData.PeiTemporaryRamSize));\r
- DEBUG ((DEBUG_INFO, "StackBase - 0x%x\n", SecCoreData.StackBase));\r
- DEBUG ((DEBUG_INFO, "StackSize - 0x%x\n", SecCoreData.StackSize));\r
-\r
- //\r
- // Initialize Debug Agent to support source level debug in SEC/PEI phases before memory ready.\r
- //\r
- InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, &SecCoreData, SecStartupPhase2);\r
-\r
-}\r
-\r
-/**\r
- This API patch the TopOfTemporaryRam value in SecPpiList.\r
-\r
- @param[in,out] SecPpiList PPI list to be patched.\r
- @param[in] TopOfTemporaryRam The top of CAR.\r
-\r
-**/\r
-VOID\r
-PatchTopOfTemporaryRamPpi (\r
- IN OUT EFI_PEI_PPI_DESCRIPTOR *SecPpiList,\r
- IN VOID *TopOfTemporaryRam\r
- )\r
-{\r
- SecPpiList[0].Ppi = TopOfTemporaryRam;\r
-}\r
-\r
-/**\r
- Caller provided function to be invoked at the end of InitializeDebugAgent().\r
-\r
- Entry point to the C language phase of SEC. After the SEC assembly\r
- code has initialized some temporary memory and set up the stack,\r
- the control is transferred to this function.\r
-\r
- @param[in] Context The first input parameter of InitializeDebugAgent().\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-SecStartupPhase2(\r
- IN VOID *Context\r
- )\r
-{\r
- EFI_SEC_PEI_HAND_OFF *SecCoreData;\r
- EFI_PEI_PPI_DESCRIPTOR *PpiList;\r
- UINT32 Index;\r
- EFI_PEI_PPI_DESCRIPTOR LocalSecPpiList[sizeof(mPeiSecMainPpi)/sizeof(mPeiSecMainPpi[0])];\r
- EFI_PEI_PPI_DESCRIPTOR AllSecPpiList[FixedPcdGet32(PcdSecCoreMaxPpiSupported)];\r
- EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint;\r
-\r
- SecCoreData = (EFI_SEC_PEI_HAND_OFF *) Context;\r
- //\r
- // Find Pei Core entry point. It will report SEC and Pei Core debug information if remote debug\r
- // is enabled.\r
- //\r
- FindAndReportEntryPoints ((EFI_FIRMWARE_VOLUME_HEADER *) SecCoreData->BootFirmwareVolumeBase, &PeiCoreEntryPoint);\r
- if (PeiCoreEntryPoint == NULL)\r
- {\r
- CpuDeadLoop ();\r
- }\r
-\r
- CopyMem (LocalSecPpiList, mPeiSecMainPpi, sizeof(mPeiSecMainPpi));\r
- PatchTopOfTemporaryRamPpi (LocalSecPpiList, (VOID *)((UINTN)SecCoreData->TemporaryRamBase + SecCoreData->TemporaryRamSize));\r
-\r
- //\r
- // Perform platform specific initialization before entering PeiCore.\r
- //\r
- PpiList = SecPlatformMain (SecCoreData);\r
- if (PpiList != NULL) {\r
- //\r
- // Remove the terminal flag from the terminal Ppi\r
- //\r
- CopyMem (AllSecPpiList, LocalSecPpiList, sizeof (LocalSecPpiList));\r
- for (Index = 0; Index < PcdGet32 (PcdSecCoreMaxPpiSupported); Index ++) {\r
- if ((AllSecPpiList[Index].Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) == EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r
- break;\r
- }\r
- }\r
- AllSecPpiList[Index].Flags = AllSecPpiList[Index].Flags & (~EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r
-\r
- //\r
- // Append the platform additional Ppi list\r
- //\r
- Index += 1;\r
- while (Index < PcdGet32 (PcdSecCoreMaxPpiSupported) &&\r
- ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) != EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST)) {\r
- CopyMem (&AllSecPpiList[Index], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
- Index++;\r
- PpiList++;\r
- }\r
-\r
- //\r
- // Check whether the total Ppis exceeds the max supported Ppi.\r
- //\r
- if (Index >= PcdGet32 (PcdSecCoreMaxPpiSupported)) {\r
- //\r
- // the total Ppi is larger than the supported Max\r
- // PcdSecCoreMaxPpiSupported can be enlarged to solve it.\r
- //\r
- CpuDeadLoop ();\r
- } else {\r
- //\r
- // Add the terminal Ppi\r
- //\r
- CopyMem (&AllSecPpiList[Index], PpiList, sizeof (EFI_PEI_PPI_DESCRIPTOR));\r
- }\r
-\r
- //\r
- // Set PpiList to the total Ppi\r
- //\r
- PpiList = &AllSecPpiList[0];\r
- } else {\r
- //\r
- // No addition Ppi, PpiList directly point to the common Ppi list.\r
- //\r
- PpiList = &LocalSecPpiList[0];\r
- }\r
-\r
- //\r
- // Transfer the control to the PEI core\r
- //\r
- ASSERT (PeiCoreEntryPoint != NULL);\r
- (*PeiCoreEntryPoint) (SecCoreData, PpiList);\r
-\r
- //\r
- // Should not come here.\r
- //\r
- return ;\r
-}\r
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