-/*++\r
-\r
-Copyright (c) 2006, Intel Corporation\r
+/** @file\r
+ EFI PEI Core dispatch services\r
+ \r
+Copyright (c) 2006 - 2010, Intel Corporation\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
-Module Name:\r
+**/\r
\r
- Dispatcher.c\r
+#include "PeiMain.h"\r
\r
-Abstract:\r
+///\r
+/// temporary memory is filled with this initial value during SEC phase\r
+///\r
+#define INIT_CAR_VALUE 0x5AA55AA5\r
\r
- EFI PEI Core dispatch services\r
+typedef struct {\r
+ EFI_STATUS_CODE_DATA DataHeader;\r
+ EFI_HANDLE Handle;\r
+} PEIM_FILE_HANDLE_EXTENDED_DATA;\r
\r
-Revision History\r
+/**\r
\r
---*/\r
+ Discover all Peims and optional Apriori file in one FV. There is at most one\r
+ Apriori file in one FV.\r
\r
-//\r
-// Include common header file for this module.\r
-//\r
-#include "CommonHeader.h"\r
\r
-#include <PeiMain.h>\r
+ @param Private Pointer to the private data passed in from caller\r
+ @param CoreFileHandle The instance of PEI_CORE_FV_HANDLE.\r
\r
-STATIC\r
-VOID *\r
-TransferOldDataToNewDataRange (\r
- IN PEI_CORE_INSTANCE *PrivateData\r
- );\r
-\r
-EFI_STATUS\r
-PeiDispatcher (\r
- IN EFI_PEI_STARTUP_DESCRIPTOR *PeiStartupDescriptor,\r
- IN PEI_CORE_INSTANCE *PrivateData,\r
- IN PEI_CORE_DISPATCH_DATA *DispatchData\r
+**/\r
+VOID\r
+DiscoverPeimsAndOrderWithApriori (\r
+ IN PEI_CORE_INSTANCE *Private,\r
+ IN PEI_CORE_FV_HANDLE *CoreFileHandle\r
)\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PEI_FV_HANDLE FileHandle;\r
+ EFI_PEI_FILE_HANDLE AprioriFileHandle;\r
+ EFI_GUID *Apriori;\r
+ UINTN Index;\r
+ UINTN Index2;\r
+ UINTN PeimIndex;\r
+ UINTN PeimCount;\r
+ EFI_GUID *Guid;\r
+ EFI_PEI_FV_HANDLE TempFileHandles[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv)];\r
+ EFI_GUID FileGuid[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv)];\r
+ EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r
+ EFI_FV_FILE_INFO FileInfo;\r
+ \r
+ FvPpi = CoreFileHandle->FvPpi;\r
+ \r
+ //\r
+ // Walk the FV and find all the PEIMs and the Apriori file.\r
+ //\r
+ AprioriFileHandle = NULL;\r
+ Private->CurrentFvFileHandles[0] = NULL;\r
+ Guid = NULL;\r
+ FileHandle = NULL;\r
\r
-/*++\r
+ //\r
+ // If the current Fv has been scanned, directly get its cachable record.\r
+ //\r
+ if (Private->Fv[Private->CurrentPeimFvCount].ScanFv) {\r
+ CopyMem (Private->CurrentFvFileHandles, Private->Fv[Private->CurrentPeimFvCount].FvFileHandles, sizeof (Private->CurrentFvFileHandles));\r
+ return;\r
+ }\r
\r
-Routine Description:\r
+ //\r
+ // Go ahead to scan this Fv, and cache FileHandles within it.\r
+ //\r
+ for (PeimCount = 0; PeimCount < PcdGet32 (PcdPeiCoreMaxPeimPerFv); PeimCount++) {\r
+ Status = FvPpi->FindFileByType (FvPpi, PEI_CORE_INTERNAL_FFS_FILE_DISPATCH_TYPE, CoreFileHandle->FvHandle, &FileHandle);\r
+ if (Status != EFI_SUCCESS) {\r
+ break;\r
+ }\r
\r
- Conduct PEIM dispatch.\r
+ Private->CurrentFvFileHandles[PeimCount] = FileHandle;\r
+ }\r
+ \r
+ //\r
+ // Check whether the count of Peims exceeds the max support PEIMs in a FV image\r
+ // If more Peims are required in a FV image, PcdPeiCoreMaxPeimPerFv can be set to a larger value in DSC file.\r
+ //\r
+ ASSERT (PeimCount < PcdGet32 (PcdPeiCoreMaxPeimPerFv));\r
+\r
+ //\r
+ // Get Apriori File handle\r
+ //\r
+ Private->AprioriCount = 0;\r
+ Status = FvPpi->FindFileByName (FvPpi, &gPeiAprioriFileNameGuid, &CoreFileHandle->FvHandle, &AprioriFileHandle);\r
+ if (!EFI_ERROR(Status) && AprioriFileHandle != NULL) {\r
+ //\r
+ // Read the Apriori file\r
+ //\r
+ Status = FvPpi->FindSectionByType (FvPpi, EFI_SECTION_RAW, AprioriFileHandle, (VOID **) &Apriori);\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // Calculate the number of PEIMs in the A Priori list\r
+ //\r
+ Status = FvPpi->GetFileInfo (FvPpi, AprioriFileHandle, &FileInfo);\r
+ ASSERT_EFI_ERROR (Status);\r
+ Private->AprioriCount = FileInfo.BufferSize & 0x00FFFFFF;\r
+ Private->AprioriCount -= sizeof (EFI_COMMON_SECTION_HEADER);\r
+ Private->AprioriCount /= sizeof (EFI_GUID);\r
+\r
+ ZeroMem (FileGuid, sizeof (FileGuid));\r
+ for (Index = 0; Index < PeimCount; Index++) {\r
+ //\r
+ // Make an array of file name guids that matches the FileHandle array so we can convert\r
+ // quickly from file name to file handle\r
+ //\r
+ Status = FvPpi->GetFileInfo (FvPpi, Private->CurrentFvFileHandles[Index], &FileInfo);\r
+ CopyMem (&FileGuid[Index], &FileInfo.FileName, sizeof(EFI_GUID));\r
+ }\r
+\r
+ //\r
+ // Walk through FileGuid array to find out who is invalid PEIM guid in Apriori file.\r
+ // Add avalible PEIMs in Apriori file into TempFileHandles array at first.\r
+ //\r
+ Index2 = 0;\r
+ for (Index = 0; Index2 < Private->AprioriCount; Index++) {\r
+ while (Index2 < Private->AprioriCount) {\r
+ Guid = ScanGuid (FileGuid, PeimCount * sizeof (EFI_GUID), &Apriori[Index2++]);\r
+ if (Guid != NULL) {\r
+ break;\r
+ }\r
+ }\r
+ if (Guid == NULL) {\r
+ break;\r
+ }\r
+ PeimIndex = ((UINTN)Guid - (UINTN)&FileGuid[0])/sizeof (EFI_GUID);\r
+ TempFileHandles[Index] = Private->CurrentFvFileHandles[PeimIndex];\r
\r
-Arguments:\r
+ //\r
+ // Since we have copied the file handle we can remove it from this list.\r
+ //\r
+ Private->CurrentFvFileHandles[PeimIndex] = NULL;\r
+ }\r
\r
- PeiStartupDescriptor - Pointer to IN EFI_PEI_STARTUP_DESCRIPTOR\r
- PrivateData - Pointer to the private data passed in from caller\r
- DispatchData - Pointer to PEI_CORE_DISPATCH_DATA data.\r
+ //\r
+ // Update valid Aprioricount\r
+ //\r
+ Private->AprioriCount = Index;\r
\r
-Returns:\r
+ //\r
+ // Add in any PEIMs not in the Apriori file\r
+ //\r
+ for (;Index < PeimCount; Index++) {\r
+ for (Index2 = 0; Index2 < PeimCount; Index2++) {\r
+ if (Private->CurrentFvFileHandles[Index2] != NULL) {\r
+ TempFileHandles[Index] = Private->CurrentFvFileHandles[Index2];\r
+ Private->CurrentFvFileHandles[Index2] = NULL;\r
+ break;\r
+ }\r
+ }\r
+ }\r
+ //\r
+ //Index the end of array contains re-range Pei moudle.\r
+ //\r
+ TempFileHandles[Index] = NULL;\r
\r
- EFI_SUCCESS - Successfully dispatched PEIM.\r
- EFI_NOT_FOUND - The dispatch failed.\r
+ //\r
+ // Private->CurrentFvFileHandles is currently in PEIM in the FV order.\r
+ // We need to update it to start with files in the A Priori list and\r
+ // then the remaining files in PEIM order.\r
+ //\r
+ CopyMem (Private->CurrentFvFileHandles, TempFileHandles, sizeof (Private->CurrentFvFileHandles));\r
+ }\r
+ }\r
+ //\r
+ // Cache the current Fv File Handle. So that we don't have to scan the Fv again.\r
+ // Instead, we can retrieve the file handles within this Fv from cachable data.\r
+ //\r
+ Private->Fv[Private->CurrentPeimFvCount].ScanFv = TRUE;\r
+ CopyMem (Private->Fv[Private->CurrentPeimFvCount].FvFileHandles, Private->CurrentFvFileHandles, sizeof (Private->CurrentFvFileHandles));\r
\r
---*/\r
+}\r
+\r
+/**\r
+ Shadow PeiCore module from flash to installed memory.\r
+ \r
+ @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
+ @param PrivateInMem PeiCore's private data structure\r
+\r
+ @return PeiCore function address after shadowing.\r
+**/\r
+VOID*\r
+ShadowPeiCore(\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN PEI_CORE_INSTANCE *PrivateInMem\r
+ )\r
{\r
- EFI_STATUS Status;\r
- PEI_CORE_TEMP_POINTERS TempPtr;\r
- UINTN PrivateDataInMem;\r
- BOOLEAN NextFvFound;\r
- EFI_FIRMWARE_VOLUME_HEADER *NextFvAddress;\r
- EFI_FIRMWARE_VOLUME_HEADER *DefaultFvAddress;\r
- VOID *TopOfStack;\r
+ EFI_PEI_FILE_HANDLE PeiCoreFileHandle;\r
+ EFI_PHYSICAL_ADDRESS EntryPoint;\r
+ EFI_STATUS Status;\r
+ UINT32 AuthenticationState;\r
+\r
+ PeiCoreFileHandle = NULL;\r
+\r
+ //\r
+ // Find the PEI Core in the BFV\r
+ //\r
+ Status = PrivateInMem->Fv[0].FvPpi->FindFileByType (\r
+ PrivateInMem->Fv[0].FvPpi,\r
+ EFI_FV_FILETYPE_PEI_CORE,\r
+ PrivateInMem->Fv[0].FvHandle,\r
+ &PeiCoreFileHandle\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
//\r
- // Debug data for uninstalled Peim list\r
+ // Shadow PEI Core into memory so it will run faster\r
//\r
- EFI_GUID DebugFoundPeimList[32];\r
- EFI_DEVICE_HANDLE_EXTENDED_DATA ExtendedData;\r
+ Status = PeiLoadImage (\r
+ PeiServices,\r
+ *((EFI_PEI_FILE_HANDLE*)&PeiCoreFileHandle),\r
+ PEIM_STATE_REGISITER_FOR_SHADOW,\r
+ &EntryPoint,\r
+ &AuthenticationState\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
\r
//\r
- // save the Current FV Address so that we will not process it again if FindFv returns it later\r
+ // Compute the PeiCore's function address after shaowed PeiCore.\r
+ // _ModuleEntryPoint is PeiCore main function entry\r
//\r
- DefaultFvAddress = DispatchData->BootFvAddress;\r
+ return (VOID*) ((UINTN) EntryPoint + (UINTN) PeiCore - (UINTN) _ModuleEntryPoint);\r
+}\r
+\r
+/**\r
+ Conduct PEIM dispatch.\r
+\r
+ @param SecCoreData Points to a data structure containing information about the PEI core's operating\r
+ environment, such as the size and location of temporary RAM, the stack location and\r
+ the BFV location.\r
+ @param Private Pointer to the private data passed in from caller\r
+\r
+**/\r
+VOID\r
+PeiDispatcher (\r
+ IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,\r
+ IN PEI_CORE_INSTANCE *Private\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINT32 Index1;\r
+ UINT32 Index2;\r
+ CONST EFI_PEI_SERVICES **PeiServices;\r
+ EFI_PEI_FILE_HANDLE PeimFileHandle;\r
+ UINTN FvCount;\r
+ UINTN PeimCount;\r
+ UINT32 AuthenticationState;\r
+ EFI_PHYSICAL_ADDRESS EntryPoint;\r
+ EFI_PEIM_ENTRY_POINT2 PeimEntryPoint;\r
+ UINTN SaveCurrentPeimCount;\r
+ UINTN SaveCurrentFvCount;\r
+ EFI_PEI_FILE_HANDLE SaveCurrentFileHandle;\r
+ PEIM_FILE_HANDLE_EXTENDED_DATA ExtendedData;\r
+ EFI_PHYSICAL_ADDRESS NewPermenentMemoryBase;\r
+ TEMPORARY_RAM_SUPPORT_PPI *TemporaryRamSupportPpi;\r
+ EFI_HOB_HANDOFF_INFO_TABLE *OldHandOffTable;\r
+ EFI_HOB_HANDOFF_INFO_TABLE *NewHandOffTable;\r
+ INTN StackOffset;\r
+ INTN HeapOffset;\r
+ PEI_CORE_INSTANCE *PrivateInMem;\r
+ UINT64 NewPeiStackSize;\r
+ UINT64 OldPeiStackSize;\r
+ UINT64 StackGap;\r
+ EFI_FV_FILE_INFO FvFileInfo;\r
+ UINTN OldCheckingTop;\r
+ UINTN OldCheckingBottom;\r
+ PEI_CORE_FV_HANDLE *CoreFvHandle;\r
+\r
+ PeiServices = (CONST EFI_PEI_SERVICES **) &Private->PS;\r
+ PeimEntryPoint = NULL;\r
+ PeimFileHandle = NULL;\r
+ EntryPoint = 0;\r
+\r
+ if ((Private->PeiMemoryInstalled) && (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
+ //\r
+ // Once real memory is available, shadow the RegisterForShadow modules. And meanwhile\r
+ // update the modules' status from PEIM_STATE_REGISITER_FOR_SHADOW to PEIM_STATE_DONE.\r
+ //\r
+ SaveCurrentPeimCount = Private->CurrentPeimCount;\r
+ SaveCurrentFvCount = Private->CurrentPeimFvCount;\r
+ SaveCurrentFileHandle = Private->CurrentFileHandle;\r
+\r
+ for (Index1 = 0; Index1 <= SaveCurrentFvCount; Index1++) {\r
+ for (Index2 = 0; (Index2 < PcdGet32 (PcdPeiCoreMaxPeimPerFv)) && (Private->Fv[Index1].FvFileHandles[Index2] != NULL); Index2++) {\r
+ if (Private->Fv[Index1].PeimState[Index2] == PEIM_STATE_REGISITER_FOR_SHADOW) {\r
+ PeimFileHandle = Private->Fv[Index1].FvFileHandles[Index2];\r
+ Status = PeiLoadImage (\r
+ (CONST EFI_PEI_SERVICES **) &Private->PS,\r
+ PeimFileHandle,\r
+ PEIM_STATE_REGISITER_FOR_SHADOW,\r
+ &EntryPoint,\r
+ &AuthenticationState\r
+ );\r
+ if (Status == EFI_SUCCESS) {\r
+ //\r
+ // PEIM_STATE_REGISITER_FOR_SHADOW move to PEIM_STATE_DONE\r
+ //\r
+ Private->Fv[Index1].PeimState[Index2]++;\r
+ Private->CurrentFileHandle = PeimFileHandle;\r
+ Private->CurrentPeimFvCount = Index1;\r
+ Private->CurrentPeimCount = Index2;\r
+ //\r
+ // Call the PEIM entry point\r
+ //\r
+ PeimEntryPoint = (EFI_PEIM_ENTRY_POINT2)(UINTN)EntryPoint;\r
+\r
+ PERF_START (PeimFileHandle, "PEIM", NULL, 0);\r
+ PeimEntryPoint(PeimFileHandle, (const EFI_PEI_SERVICES **) &Private->PS);\r
+ PERF_END (PeimFileHandle, "PEIM", NULL, 0);\r
+ }\r
+\r
+ //\r
+ // Process the Notify list and dispatch any notifies for\r
+ // newly installed PPIs.\r
+ //\r
+ ProcessNotifyList (Private);\r
+ }\r
+ }\r
+ }\r
+ Private->CurrentFileHandle = SaveCurrentFileHandle;\r
+ Private->CurrentPeimFvCount = SaveCurrentFvCount;\r
+ Private->CurrentPeimCount = SaveCurrentPeimCount;\r
+ }\r
\r
//\r
// This is the main dispatch loop. It will search known FVs for PEIMs and\r
// FV where PEIMs are found in the order their dependencies are also\r
// satisfied, this dipatcher should run only once.\r
//\r
- for (;;) {\r
+ do {\r
//\r
- // This is the PEIM search loop. It will scan through all PEIMs it can find\r
- // looking for PEIMs to dispatch, and will dipatch them if they have not\r
- // already been dispatched and all of their dependencies are met.\r
- // If no more PEIMs can be found in this pass through all known FVs,\r
- // then it will break out of this loop.\r
+ // In case that reenter PeiCore happens, the last pass record is still available. \r
//\r
- for (;;) {\r
-\r
- Status = FindNextPeim (\r
- &PrivateData->PS,\r
- DispatchData->CurrentFvAddress,\r
- &DispatchData->CurrentPeimAddress\r
- );\r
-\r
+ if (!Private->PeimDispatcherReenter) {\r
+ Private->PeimNeedingDispatch = FALSE;\r
+ Private->PeimDispatchOnThisPass = FALSE;\r
+ } else {\r
+ Private->PeimDispatcherReenter = FALSE;\r
+ }\r
+ \r
+ for (FvCount = Private->CurrentPeimFvCount; FvCount < Private->FvCount; FvCount++) {\r
+ CoreFvHandle = FindNextCoreFvHandle (Private, FvCount);\r
+ ASSERT (CoreFvHandle != NULL);\r
+ \r
//\r
- // If we found a PEIM, check if it is dispatched. If so, go to the\r
- // next PEIM. If not, dispatch it if its dependencies are satisfied.\r
- // If its dependencies are not satisfied, go to the next PEIM.\r
+ // If the FV has corresponding EFI_PEI_FIRMWARE_VOLUME_PPI instance, then dispatch it.\r
//\r
- if (Status == EFI_SUCCESS) {\r
+ if (CoreFvHandle->FvPpi == NULL) {\r
+ continue;\r
+ }\r
+ \r
+ Private->CurrentPeimFvCount = FvCount;\r
\r
- DEBUG_CODE_BEGIN ();\r
+ if (Private->CurrentPeimCount == 0) {\r
+ //\r
+ // When going through each FV, at first, search Apriori file to\r
+ // reorder all PEIMs to ensure the PEIMs in Apriori file to get\r
+ // dispatch at first.\r
+ //\r
+ DiscoverPeimsAndOrderWithApriori (Private, CoreFvHandle);\r
+ }\r
\r
- //\r
- // Fill list of found Peims for later list of those not installed\r
- //\r
- CopyMem (\r
- &DebugFoundPeimList[DispatchData->CurrentPeim],\r
- &DispatchData->CurrentPeimAddress->Name,\r
- sizeof (EFI_GUID)\r
- );\r
-\r
- DEBUG_CODE_END ();\r
-\r
- if (!Dispatched (\r
- DispatchData->CurrentPeim,\r
- DispatchData->DispatchedPeimBitMap\r
- )) {\r
- if (DepexSatisfied (&PrivateData->PS, DispatchData->CurrentPeimAddress)) {\r
- Status = PeiLoadImage (\r
- &PrivateData->PS,\r
- DispatchData->CurrentPeimAddress,\r
- &TempPtr.Raw\r
- );\r
- if (Status == EFI_SUCCESS) {\r
+ //\r
+ // Start to dispatch all modules within the current Fv.\r
+ //\r
+ for (PeimCount = Private->CurrentPeimCount;\r
+ (PeimCount < PcdGet32 (PcdPeiCoreMaxPeimPerFv)) && (Private->CurrentFvFileHandles[PeimCount] != NULL);\r
+ PeimCount++) {\r
+ Private->CurrentPeimCount = PeimCount;\r
+ PeimFileHandle = Private->CurrentFileHandle = Private->CurrentFvFileHandles[PeimCount];\r
+\r
+ if (Private->Fv[FvCount].PeimState[PeimCount] == PEIM_STATE_NOT_DISPATCHED) {\r
+ if (!DepexSatisfied (Private, PeimFileHandle, PeimCount)) {\r
+ Private->PeimNeedingDispatch = TRUE;\r
+ } else {\r
+ Status = CoreFvHandle->FvPpi->GetFileInfo (CoreFvHandle->FvPpi, PeimFileHandle, &FvFileInfo);\r
+ ASSERT_EFI_ERROR (Status);\r
+ if (FvFileInfo.FileType == EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE) {\r
+ //\r
+ // For Fv type file, Produce new FV PPI and FV hob\r
+ //\r
+ Status = ProcessFvFile (&Private->Fv[FvCount], PeimFileHandle);\r
+ AuthenticationState = 0;\r
+ } else {\r
+ //\r
+ // For PEIM driver, Load its entry point\r
+ //\r
+ Status = PeiLoadImage (\r
+ PeiServices,\r
+ PeimFileHandle,\r
+ PEIM_STATE_NOT_DISPATCHED,\r
+ &EntryPoint,\r
+ &AuthenticationState\r
+ );\r
+ }\r
\r
+ if ((Status == EFI_SUCCESS)) {\r
//\r
// The PEIM has its dependencies satisfied, and its entry point\r
// has been found, so invoke it.\r
//\r
- PERF_START (\r
- (VOID *) (UINTN) (DispatchData->CurrentPeimAddress),\r
- "PEIM",\r
- NULL,\r
- 0\r
- );\r
+ PERF_START (PeimFileHandle, "PEIM", NULL, 0);\r
\r
- //\r
- // BUGBUG: Used to be EFI_PEI_REPORT_STATUS_CODE_CODE\r
- //\r
- ExtendedData.Handle = (EFI_HANDLE)DispatchData->CurrentPeimAddress;\r
+ ExtendedData.Handle = (EFI_HANDLE)PeimFileHandle;\r
\r
REPORT_STATUS_CODE_WITH_EXTENDED_DATA (\r
EFI_PROGRESS_CODE,\r
- EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT_BEGIN,\r
+ (EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT_BEGIN),\r
(VOID *)(&ExtendedData),\r
sizeof (ExtendedData)\r
);\r
\r
- //\r
- // Is this a authentic image\r
- //\r
- Status = VerifyPeim (\r
- &PrivateData->PS,\r
- DispatchData->CurrentPeimAddress\r
- );\r
-\r
- if (Status != EFI_SECURITY_VIOLATION) {\r
-\r
+ Status = VerifyPeim (Private, CoreFvHandle->FvHandle, PeimFileHandle);\r
+ if (Status != EFI_SECURITY_VIOLATION && (AuthenticationState == 0)) {\r
//\r
- // BUGBUG: Before enable PI, we need cast EFI_FFS_FILE_HEADER* to EFI_PEI_FILE_HANDLE*\r
- // Because we use new MdePkg's definition, but they are binary compatible in fact.\r
+ // PEIM_STATE_NOT_DISPATCHED move to PEIM_STATE_DISPATCHED\r
//\r
- Status = TempPtr.PeimEntry (\r
- (EFI_PEI_FILE_HANDLE*)DispatchData->CurrentPeimAddress,\r
- &PrivateData->PS\r
- );\r
+ Private->Fv[FvCount].PeimState[PeimCount]++;\r
+\r
+ if (FvFileInfo.FileType != EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE) {\r
+ //\r
+ // Call the PEIM entry point for PEIM driver\r
+ //\r
+ PeimEntryPoint = (EFI_PEIM_ENTRY_POINT2)(UINTN)EntryPoint;\r
+ PeimEntryPoint (PeimFileHandle, (const EFI_PEI_SERVICES **) PeiServices);\r
+ }\r
+\r
+ Private->PeimDispatchOnThisPass = TRUE;\r
}\r
\r
REPORT_STATUS_CODE_WITH_EXTENDED_DATA (\r
EFI_PROGRESS_CODE,\r
- EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT_END,\r
+ (EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT_BEGIN),\r
(VOID *)(&ExtendedData),\r
sizeof (ExtendedData)\r
);\r
+ PERF_END (PeimFileHandle, "PEIM", NULL, 0);\r
\r
- PERF_END ((VOID *) (UINTN) (DispatchData->CurrentPeimAddress), "PEIM", NULL, 0);\r
+ }\r
\r
+ if (Private->SwitchStackSignal) {\r
//\r
- // Mark the PEIM as dispatched so we don't attempt to run it again\r
+ // Before switch stack from temporary memory to permenent memory, caculate the heap and stack\r
+ // usage in temporary memory for debuging.\r
//\r
- SetDispatched (\r
- &PrivateData->PS,\r
- DispatchData->CurrentPeim,\r
- &DispatchData->DispatchedPeimBitMap\r
- );\r
+ DEBUG_CODE_BEGIN ();\r
+ UINT32 *StackPointer;\r
+ \r
+ for (StackPointer = (UINT32*)SecCoreData->StackBase;\r
+ (StackPointer < (UINT32*)((UINTN)SecCoreData->StackBase + SecCoreData->StackSize)) \\r
+ && (*StackPointer == INIT_CAR_VALUE);\r
+ StackPointer ++);\r
+ \r
+ DEBUG ((EFI_D_INFO, "Total temporary memory: %d bytes.\n", (UINT32)SecCoreData->TemporaryRamSize));\r
+ DEBUG ((EFI_D_INFO, " temporary memory stack ever used: %d bytes.\n",\r
+ (SecCoreData->StackSize - ((UINTN) StackPointer - (UINTN)SecCoreData->StackBase))\r
+ ));\r
+ DEBUG ((EFI_D_INFO, " temporary memory heap used: %d bytes.\n",\r
+ ((UINTN) Private->HobList.HandoffInformationTable->EfiFreeMemoryBottom -\r
+ (UINTN) Private->HobList.Raw)\r
+ ));\r
+ DEBUG_CODE_END ();\r
+ \r
+ //\r
+ // Reserve the size of new stack at bottom of physical memory\r
+ //\r
+ OldPeiStackSize = (UINT64) SecCoreData->StackSize;\r
+ NewPeiStackSize = (RShiftU64 (Private->PhysicalMemoryLength, 1) + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;\r
+ if (PcdGet32(PcdPeiCoreMaxPeiStackSize) > (UINT32) NewPeiStackSize) {\r
+ Private->StackSize = NewPeiStackSize;\r
+ } else {\r
+ Private->StackSize = PcdGet32(PcdPeiCoreMaxPeiStackSize);\r
+ }\r
\r
//\r
- // Process the Notify list and dispatch any notifies for\r
- // newly installed PPIs.\r
+ // In theory, the size of new stack in permenent memory should large than\r
+ // size of old stack in temporary memory.\r
+ // But if new stack is smaller than the size of old stack, we also reserve\r
+ // the size of old stack at bottom of permenent memory.\r
+ //\r
+ DEBUG ((EFI_D_INFO, "Old Stack size %d, New stack size %d\n", (INT32) OldPeiStackSize, (INT32) Private->StackSize));\r
+ ASSERT (Private->StackSize >= OldPeiStackSize);\r
+ StackGap = Private->StackSize - OldPeiStackSize;\r
+\r
+ //\r
+ // Update HandOffHob for new installed permenent memory\r
//\r
- ProcessNotifyList (&PrivateData->PS);\r
+ OldHandOffTable = Private->HobList.HandoffInformationTable;\r
+ OldCheckingBottom = (UINTN)(SecCoreData->TemporaryRamBase);\r
+ OldCheckingTop = (UINTN)(OldCheckingBottom + SecCoreData->TemporaryRamSize);\r
\r
//\r
- // If real system memory was discovered and installed by this\r
- // PEIM, switch the stacks to the new memory. Since we are\r
- // at dispatch level, only the Core's private data is preserved,\r
- // nobody else should have any data on the stack.\r
+ // The whole temporary memory will be migrated to physical memory.\r
+ // CAUTION: The new base is computed accounding to gap of new stack.\r
+ //\r
+ NewPermenentMemoryBase = Private->PhysicalMemoryBegin + StackGap;\r
+ \r
+ //\r
+ // Caculate stack offset and heap offset between temporary memory and new permement \r
+ // memory seperately.\r
+ //\r
+ StackOffset = (UINTN) NewPermenentMemoryBase - (UINTN) SecCoreData->StackBase;\r
+ HeapOffset = (INTN) ((UINTN) Private->PhysicalMemoryBegin + Private->StackSize - \\r
+ (UINTN) SecCoreData->PeiTemporaryRamBase);\r
+ DEBUG ((EFI_D_INFO, "Heap Offset = 0x%lX Stack Offset = 0x%lX\n", (INT64)HeapOffset, (INT64)StackOffset));\r
+ \r
+ //\r
+ // Caculate new HandOffTable and PrivateData address in permenet memory's stack\r
//\r
- if (PrivateData->SwitchStackSignal) {\r
- TempPtr.PeiCore = (PEI_CORE_ENTRY_POINT)PeiCore;\r
- PrivateDataInMem = (UINTN) TransferOldDataToNewDataRange (PrivateData);\r
- ASSERT (PrivateDataInMem != 0);\r
+ NewHandOffTable = (EFI_HOB_HANDOFF_INFO_TABLE *)((UINTN)OldHandOffTable + HeapOffset);\r
+ PrivateInMem = (PEI_CORE_INSTANCE *)((UINTN) (VOID*) Private + StackOffset);\r
+\r
+ //\r
+ // TemporaryRamSupportPpi is produced by platform's SEC\r
+ //\r
+ Status = PeiLocatePpi (\r
+ (CONST EFI_PEI_SERVICES **) PeiServices,\r
+ &gEfiTemporaryRamSupportPpiGuid,\r
+ 0,\r
+ NULL,\r
+ (VOID**)&TemporaryRamSupportPpi\r
+ );\r
+\r
+\r
+ if (!EFI_ERROR (Status)) {\r
//\r
- // Adjust the top of stack to be aligned at CPU_STACK_ALIGNMENT\r
+ // Temporary Ram support Ppi is provided by platform, it will copy \r
+ // temporary memory to permenent memory and do stack switching.\r
+ // After invoken temporary Ram support, following code's stack is in \r
+ // memory but not in temporary memory.\r
//\r
- TopOfStack = (VOID *)((UINTN)PrivateData->StackBase + (UINTN)PrivateData->StackSize - CPU_STACK_ALIGNMENT);\r
- TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);\r
-\r
- PeiSwitchStacks (\r
- (SWITCH_STACK_ENTRY_POINT)(UINTN)TempPtr.Raw,\r
- PeiStartupDescriptor,\r
- (VOID*)PrivateDataInMem,\r
- TopOfStack,\r
- (VOID*)(UINTN)PrivateData->StackBase\r
- );\r
+ TemporaryRamSupportPpi->TemporaryRamMigration (\r
+ (CONST EFI_PEI_SERVICES **) PeiServices,\r
+ (EFI_PHYSICAL_ADDRESS)(UINTN) SecCoreData->TemporaryRamBase,\r
+ (EFI_PHYSICAL_ADDRESS)(UINTN) NewPermenentMemoryBase,\r
+ SecCoreData->TemporaryRamSize\r
+ );\r
+\r
+ } else {\r
+ //\r
+ // In IA32/x64/Itanium architecture, we need platform provide\r
+ // TEMPORAY_RAM_MIGRATION_PPI.\r
+ //\r
+ ASSERT (FALSE);\r
}\r
- }\r
- }\r
- }\r
- DispatchData->CurrentPeim++;\r
- continue;\r
\r
- } else {\r
\r
- //\r
- // If we could not find another PEIM in the current FV, go try\r
- // the FindFv PPI to look in other FVs for more PEIMs. If we can\r
- // not locate the FindFv PPI, or if the FindFv PPI can not find\r
- // anymore FVs, then exit the PEIM search loop.\r
- //\r
- if (DispatchData->FindFv == NULL) {\r
- Status = PeiServicesLocatePpi (\r
- &gEfiFindFvPpiGuid,\r
- 0,\r
- NULL,\r
- (VOID **)&DispatchData->FindFv\r
- );\r
- if (Status != EFI_SUCCESS) {\r
- break;\r
- }\r
- }\r
- NextFvFound = FALSE;\r
- while (!NextFvFound) {\r
- Status = DispatchData->FindFv->FindFv (\r
- DispatchData->FindFv,\r
- &PrivateData->PS,\r
- &DispatchData->CurrentFv,\r
- &NextFvAddress\r
- );\r
- //\r
- // if there is no next fv, get out of this loop of finding FVs\r
- //\r
- if (Status != EFI_SUCCESS) {\r
- break;\r
- }\r
- //\r
- // don't process the default Fv again. (we don't know the order in which the hobs were created)\r
- //\r
- if ((NextFvAddress != DefaultFvAddress) &&\r
- (NextFvAddress != DispatchData->CurrentFvAddress)) {\r
+ //\r
+ //\r
+ // Fixup the PeiCore's private data\r
+ //\r
+ PrivateInMem->PS = &PrivateInMem->ServiceTableShadow;\r
+ PrivateInMem->CpuIo = &PrivateInMem->ServiceTableShadow.CpuIo;\r
+ PrivateInMem->HobList.Raw = (VOID*) ((UINTN) PrivateInMem->HobList.Raw + HeapOffset);\r
+ PrivateInMem->StackBase = (EFI_PHYSICAL_ADDRESS)(((UINTN)PrivateInMem->PhysicalMemoryBegin + EFI_PAGE_MASK) & ~EFI_PAGE_MASK);\r
+\r
+ PeiServices = (CONST EFI_PEI_SERVICES **) &PrivateInMem->PS;\r
+\r
+ //\r
+ // Fixup for PeiService's address\r
+ //\r
+ SetPeiServicesTablePointer(PeiServices);\r
+\r
+ //\r
+ // Update HandOffHob for new installed permenent memory\r
+ //\r
+ NewHandOffTable->EfiEndOfHobList =\r
+ (EFI_PHYSICAL_ADDRESS)((UINTN) NewHandOffTable->EfiEndOfHobList + HeapOffset);\r
+ NewHandOffTable->EfiMemoryTop = PrivateInMem->PhysicalMemoryBegin +\r
+ PrivateInMem->PhysicalMemoryLength;\r
+ NewHandOffTable->EfiMemoryBottom = PrivateInMem->PhysicalMemoryBegin;\r
+ NewHandOffTable->EfiFreeMemoryTop = PrivateInMem->FreePhysicalMemoryTop;\r
+ NewHandOffTable->EfiFreeMemoryBottom = NewHandOffTable->EfiEndOfHobList +\r
+ sizeof (EFI_HOB_GENERIC_HEADER);\r
+\r
+ //\r
+ // We need convert the PPI desciptor's pointer\r
+ //\r
+ ConvertPpiPointers (PrivateInMem, \r
+ OldCheckingBottom, \r
+ OldCheckingTop, \r
+ HeapOffset\r
+ );\r
+\r
+ DEBUG ((EFI_D_INFO, "Stack Hob: BaseAddress=0x%lX Length=0x%lX\n",\r
+ PrivateInMem->StackBase,\r
+ PrivateInMem->StackSize));\r
+ BuildStackHob (PrivateInMem->StackBase, PrivateInMem->StackSize);\r
+\r
+ //\r
+ // After the whole temporary memory is migrated, then we can allocate page in\r
+ // permenent memory.\r
+ //\r
+ PrivateInMem->PeiMemoryInstalled = TRUE;\r
+\r
+ //\r
+ // Indicate that PeiCore reenter\r
+ //\r
+ PrivateInMem->PeimDispatcherReenter = TRUE;\r
+ \r
+ //\r
+ // Shadow PEI Core. When permanent memory is avaiable, shadow\r
+ // PEI Core and PEIMs to get high performance.\r
+ //\r
+ PrivateInMem->ShadowedPeiCore = ShadowPeiCore (\r
+ PeiServices,\r
+ PrivateInMem\r
+ );\r
+ //\r
+ // Process the Notify list and dispatch any notifies for\r
+ // newly installed PPIs.\r
+ //\r
+ ProcessNotifyList (PrivateInMem);\r
+\r
+ //\r
+ // Entry PEI Phase 2\r
+ //\r
+ PeiCore (SecCoreData, NULL, PrivateInMem);\r
+\r
+ //\r
+ // Code should not come here\r
+ //\r
+ ASSERT_EFI_ERROR(FALSE);\r
+ }\r
\r
//\r
- // VerifyFv() is currently returns SUCCESS all the time, add code to it to\r
- // actually verify the given FV\r
+ // Process the Notify list and dispatch any notifies for\r
+ // newly installed PPIs.\r
//\r
- Status = VerifyFv (NextFvAddress);\r
- if (Status == EFI_SUCCESS) {\r
- NextFvFound = TRUE;\r
- DispatchData->CurrentFvAddress = NextFvAddress;\r
- DispatchData->CurrentPeimAddress = NULL;\r
+ ProcessNotifyList (Private);\r
+\r
+ if ((Private->PeiMemoryInstalled) && (Private->Fv[FvCount].PeimState[PeimCount] == PEIM_STATE_REGISITER_FOR_SHADOW) && \\r
+ (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
+ //\r
+ // If memory is availble we shadow images by default for performance reasons.\r
+ // We call the entry point a 2nd time so the module knows it's shadowed.\r
+ //\r
+ //PERF_START (PeiServices, L"PEIM", PeimFileHandle, 0);\r
+ ASSERT (PeimEntryPoint != NULL);\r
+ PeimEntryPoint (PeimFileHandle, (const EFI_PEI_SERVICES **) PeiServices);\r
+ //PERF_END (PeiServices, L"PEIM", PeimFileHandle, 0);\r
+\r
+ //\r
+ // PEIM_STATE_REGISITER_FOR_SHADOW move to PEIM_STATE_DONE\r
//\r
- // current PRIM number (CurrentPeim) must continue as is, don't reset it here\r
+ Private->Fv[FvCount].PeimState[PeimCount]++;\r
+\r
//\r
+ // Process the Notify list and dispatch any notifies for\r
+ // newly installed PPIs.\r
+ //\r
+ ProcessNotifyList (Private);\r
}\r
}\r
}\r
- //\r
- // if there is no next fv, get out of this loop of dispatching PEIMs\r
- //\r
- if (!NextFvFound) {\r
- break;\r
- }\r
- //\r
- // continue in the inner for(;;) loop with a new FV;\r
- //\r
}\r
- }\r
\r
- //\r
- // If all the PEIMs that we have found have been dispatched, then\r
- // there is nothing left to dispatch and we don't need to go search\r
- // through all PEIMs again.\r
- //\r
- if ((~(DispatchData->DispatchedPeimBitMap) &\r
- ((1 << DispatchData->CurrentPeim)-1)) == 0) {\r
- break;\r
- }\r
-\r
- //\r
- // Check if no more PEIMs that depex was satisfied\r
- //\r
- if (DispatchData->DispatchedPeimBitMap == DispatchData->PreviousPeimBitMap) {\r
- break;\r
+ //\r
+ // We set to NULL here to optimize the 2nd entry to this routine after\r
+ // memory is found. This reprevents rescanning of the FV. We set to\r
+ // NULL here so we start at the begining of the next FV\r
+ //\r
+ Private->CurrentFileHandle = NULL;\r
+ Private->CurrentPeimCount = 0;\r
+ //\r
+ // Before walking through the next FV,Private->CurrentFvFileHandles[]should set to NULL\r
+ //\r
+ SetMem (Private->CurrentFvFileHandles, sizeof (Private->CurrentFvFileHandles), 0);\r
}\r
\r
//\r
- // Case when Depex is not satisfied and has to traverse the list again\r
+ // Before making another pass, we should set Private->CurrentPeimFvCount =0 to go\r
+ // through all the FV.\r
//\r
- DispatchData->CurrentPeim = 0;\r
- DispatchData->CurrentPeimAddress = 0;\r
- DispatchData->PreviousPeimBitMap = DispatchData->DispatchedPeimBitMap;\r
+ Private->CurrentPeimFvCount = 0;\r
\r
//\r
- // don't go back to the loop without making sure that the CurrentFvAddress is the\r
- // same as the 1st (or default) FV we started with. otherwise we will interpret the bimap wrongly and\r
- // mess it up, always start processing the PEIMs from the default FV just like in the first time around.\r
+ // PeimNeedingDispatch being TRUE means we found a PEIM that did not get\r
+ // dispatched. So we need to make another pass\r
//\r
- DispatchData->CurrentFv = 0;\r
- DispatchData->CurrentFvAddress = DefaultFvAddress;\r
- }\r
-\r
- DEBUG_CODE_BEGIN ();\r
- //\r
- // Debug data for uninstalled Peim list\r
+ // PeimDispatchOnThisPass being TRUE means we dispatched a PEIM on this\r
+ // pass. If we did not dispatch a PEIM there is no point in trying again\r
+ // as it will fail the next time too (nothing has changed).\r
//\r
- UINT32 DebugNotDispatchedBitmap;\r
- UINT8 DebugFoundPeimPoint;\r
+ } while (Private->PeimNeedingDispatch && Private->PeimDispatchOnThisPass);\r
\r
- DebugFoundPeimPoint = 0;\r
- //\r
- // Get bitmap of Peims that were not dispatched,\r
- //\r
+}\r
\r
- DebugNotDispatchedBitmap = ((DispatchData->DispatchedPeimBitMap) ^ ((1 << DispatchData->CurrentPeim)-1));\r
- //\r
- // Scan bitmap of Peims not installed and print GUIDS\r
- //\r
- while (DebugNotDispatchedBitmap != 0) {\r
- if ((DebugNotDispatchedBitmap & 1) != 0) {\r
- DEBUG ((EFI_D_INFO, "WARNING -> InstallPpi: Not Installed: %g\n",\r
- &DebugFoundPeimList[DebugFoundPeimPoint]\r
- ));\r
- }\r
- DebugFoundPeimPoint++;\r
- DebugNotDispatchedBitmap >>= 1;\r
- }\r
+/**\r
+ Initialize the Dispatcher's data members\r
\r
- DEBUG_CODE_END ();\r
+ @param PrivateData PeiCore's private data structure\r
+ @param OldCoreData Old data from SecCore\r
+ NULL if being run in non-permament memory mode.\r
+ @param SecCoreData Points to a data structure containing information about the PEI core's operating\r
+ environment, such as the size and location of temporary RAM, the stack location and\r
+ the BFV location.\r
\r
- return EFI_NOT_FOUND;\r
-}\r
+ @return None.\r
\r
+**/\r
VOID\r
InitializeDispatcherData (\r
- IN EFI_PEI_SERVICES **PeiServices,\r
+ IN PEI_CORE_INSTANCE *PrivateData,\r
IN PEI_CORE_INSTANCE *OldCoreData,\r
- IN EFI_PEI_STARTUP_DESCRIPTOR *PeiStartupDescriptor\r
+ IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Initialize the Dispatcher's data members\r
-\r
-Arguments:\r
-\r
- PeiServices - The PEI core services table.\r
- OldCoreData - Pointer to old core data (before switching stack).\r
- NULL if being run in non-permament memory mode.\r
- PeiStartupDescriptor - Information and services provided by SEC phase.\r
-\r
-Returns:\r
-\r
- None.\r
-\r
---*/\r
{\r
- PEI_CORE_INSTANCE *PrivateData;\r
-\r
- PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);\r
-\r
if (OldCoreData == NULL) {\r
- PrivateData->DispatchData.CurrentFvAddress = (EFI_FIRMWARE_VOLUME_HEADER *) PeiStartupDescriptor->BootFirmwareVolume;\r
- PrivateData->DispatchData.BootFvAddress = (EFI_FIRMWARE_VOLUME_HEADER *) PeiStartupDescriptor->BootFirmwareVolume;\r
+ PrivateData->PeimDispatcherReenter = FALSE;\r
+ PeiInitializeFv (PrivateData, SecCoreData);\r
} else {\r
-\r
- //\r
- // Current peim has been dispatched, but not count\r
- //\r
- PrivateData->DispatchData.CurrentPeim = (UINT8)(OldCoreData->DispatchData.CurrentPeim + 1);\r
+ PeiReinitializeFv (PrivateData);\r
}\r
\r
return;\r
}\r
\r
+/**\r
+ This routine parses the Dependency Expression, if available, and\r
+ decides if the module can be executed.\r
\r
-BOOLEAN\r
-Dispatched (\r
- IN UINT8 CurrentPeim,\r
- IN UINT32 DispatchedPeimBitMap\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- This routine checks to see if a particular PEIM has been dispatched during\r
- the PEI core dispatch.\r
-\r
-Arguments:\r
- CurrentPeim - The PEIM/FV in the bit array to check.\r
- DispatchedPeimBitMap - Bit array, each bit corresponds to a PEIM/FV.\r
-\r
-Returns:\r
- TRUE - PEIM already dispatched\r
- FALSE - Otherwise\r
-\r
---*/\r
-{\r
- return (BOOLEAN)((DispatchedPeimBitMap & (1 << CurrentPeim)) != 0);\r
-}\r
-\r
-VOID\r
-SetDispatched (\r
- IN EFI_PEI_SERVICES **PeiServices,\r
- IN UINT8 CurrentPeim,\r
- OUT UINT32 *DispatchedPeimBitMap\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- This routine sets a PEIM as having been dispatched once its entry\r
- point has been invoked.\r
-\r
-Arguments:\r
-\r
- PeiServices - The PEI core services table.\r
- CurrentPeim - The PEIM/FV in the bit array to check.\r
- DispatchedPeimBitMap - Bit array, each bit corresponds to a PEIM/FV.\r
\r
-Returns:\r
- None\r
+ @param Private PeiCore's private data structure\r
+ @param FileHandle PEIM's file handle\r
+ @param PeimCount Peim count in all dispatched PEIMs.\r
\r
---*/\r
-{\r
- //\r
- // Check if the total number of PEIMs exceed the bitmap.\r
- // CurrentPeim is 0-based\r
- //\r
- ASSERT (CurrentPeim < (sizeof (*DispatchedPeimBitMap) * 8));\r
- *DispatchedPeimBitMap |= (1 << CurrentPeim);\r
- return;\r
-}\r
+ @retval TRUE Can be dispatched\r
+ @retval FALSE Cannot be dispatched\r
\r
+**/\r
BOOLEAN\r
DepexSatisfied (\r
- IN EFI_PEI_SERVICES **PeiServices,\r
- IN VOID *CurrentPeimAddress\r
+ IN PEI_CORE_INSTANCE *Private,\r
+ IN EFI_PEI_FILE_HANDLE FileHandle,\r
+ IN UINTN PeimCount\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- This routine parses the Dependency Expression, if available, and\r
- decides if the module can be executed.\r
-\r
-Arguments:\r
- PeiServices - The PEI Service Table\r
- CurrentPeimAddress - Address of the PEIM Firmware File under investigation\r
-\r
-Returns:\r
- TRUE - Can be dispatched\r
- FALSE - Cannot be dispatched\r
-\r
---*/\r
{\r
- EFI_STATUS Status;\r
- INT8 *DepexData;\r
- BOOLEAN Runnable;\r
+ EFI_STATUS Status;\r
+ VOID *DepexData;\r
+\r
+ if (PeimCount < Private->AprioriCount) {\r
+ //\r
+ // If its in the A priori file then we set Depex to TRUE\r
+ //\r
+ return TRUE;\r
+ }\r
\r
- Status = PeiServicesFfsFindSectionData (\r
- EFI_SECTION_PEI_DEPEX,\r
- CurrentPeimAddress,\r
- (VOID **)&DepexData\r
- );\r
//\r
- // If there is no DEPEX, assume the module can be executed\r
+ // Depex section not in the encapsulated section.\r
//\r
+ Status = PeiServicesFfsFindSectionData (\r
+ EFI_SECTION_PEI_DEPEX,\r
+ FileHandle,\r
+ (VOID **)&DepexData\r
+ );\r
+\r
if (EFI_ERROR (Status)) {\r
+ //\r
+ // If there is no DEPEX, assume the module can be executed\r
+ //\r
return TRUE;\r
}\r
\r
//\r
// Evaluate a given DEPEX\r
//\r
- Status = PeimDispatchReadiness (\r
- PeiServices,\r
- DepexData,\r
- &Runnable\r
- );\r
-\r
- return Runnable;\r
+ return PeimDispatchReadiness (&Private->PS, DepexData);\r
}\r
\r
-STATIC\r
-VOID *\r
-TransferOldDataToNewDataRange (\r
- IN PEI_CORE_INSTANCE *PrivateData\r
- )\r
-/*++\r
+/**\r
+ This routine enable a PEIM to register itself to shadow when PEI Foundation\r
+ discovery permanent memory.\r
\r
-Routine Description:\r
+ @param FileHandle File handle of a PEIM.\r
\r
- This routine transfers the contents of the pre-permanent memory\r
- PEI Core private data to a post-permanent memory data location.\r
+ @retval EFI_NOT_FOUND The file handle doesn't point to PEIM itself.\r
+ @retval EFI_ALREADY_STARTED Indicate that the PEIM has been registered itself.\r
+ @retval EFI_SUCCESS Successfully to register itself.\r
\r
-Arguments:\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiRegisterForShadow (\r
+ IN EFI_PEI_FILE_HANDLE FileHandle\r
+ )\r
+{\r
+ PEI_CORE_INSTANCE *Private;\r
+ Private = PEI_CORE_INSTANCE_FROM_PS_THIS (GetPeiServicesTablePointer ());\r
\r
- PrivateData - Pointer to the current PEI Core private data pre-permanent memory\r
+ if (Private->CurrentFileHandle != FileHandle) {\r
+ //\r
+ // The FileHandle must be for the current PEIM\r
+ //\r
+ return EFI_NOT_FOUND;\r
+ }\r
\r
-Returns:\r
+ if (Private->Fv[Private->CurrentPeimFvCount].PeimState[Private->CurrentPeimCount] >= PEIM_STATE_REGISITER_FOR_SHADOW) {\r
+ //\r
+ // If the PEIM has already entered the PEIM_STATE_REGISTER_FOR_SHADOW or PEIM_STATE_DONE then it's already been started\r
+ //\r
+ return EFI_ALREADY_STARTED;\r
+ }\r
\r
- Pointer to the PrivateData once the private data has been transferred to permanent memory\r
+ Private->Fv[Private->CurrentPeimFvCount].PeimState[Private->CurrentPeimCount] = PEIM_STATE_REGISITER_FOR_SHADOW;\r
\r
---*/\r
-{\r
- //\r
- //Build private HOB to PEI core to transfer old NEM-range data to new NEM-range\r
- //\r
- return BuildGuidDataHob (&gEfiPeiCorePrivateGuid, PrivateData, sizeof (PEI_CORE_INSTANCE));\r
+ return EFI_SUCCESS;\r
}\r
\r
+\r
+\r
projects / mirror_edk2.git / blobdiff