diff options
Diffstat (limited to 'MdeModulePkg/Core/Pei/PeiMain/PeiMain.c')
| -rw-r--r-- | MdeModulePkg/Core/Pei/PeiMain/PeiMain.c | 157 |
1 files changed, 133 insertions, 24 deletions
diff --git a/MdeModulePkg/Core/Pei/PeiMain/PeiMain.c b/MdeModulePkg/Core/Pei/PeiMain/PeiMain.c index c5fe851abe..2a16f592a4 100644 --- a/MdeModulePkg/Core/Pei/PeiMain/PeiMain.c +++ b/MdeModulePkg/Core/Pei/PeiMain/PeiMain.c @@ -1,7 +1,7 @@ /** @file
Pei Core Main Entry Point
-Copyright (c) 2006 - 2010, Intel Corporation
+Copyright (c) 2006 - 2011, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -65,6 +65,55 @@ EFI_PEI_SERVICES gPs = { };
/**
+ Shadow PeiCore module from flash to installed memory.
+
+ @param PrivateData PeiCore's private data structure
+
+ @return PeiCore function address after shadowing.
+**/
+PEICORE_FUNCTION_POINTER
+ShadowPeiCore (
+ IN PEI_CORE_INSTANCE *PrivateData
+ )
+{
+ EFI_PEI_FILE_HANDLE PeiCoreFileHandle;
+ EFI_PHYSICAL_ADDRESS EntryPoint;
+ EFI_STATUS Status;
+ UINT32 AuthenticationState;
+
+ PeiCoreFileHandle = NULL;
+
+ //
+ // Find the PEI Core in the BFV
+ //
+ Status = PrivateData->Fv[0].FvPpi->FindFileByType (
+ PrivateData->Fv[0].FvPpi,
+ EFI_FV_FILETYPE_PEI_CORE,
+ PrivateData->Fv[0].FvHandle,
+ &PeiCoreFileHandle
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Shadow PEI Core into memory so it will run faster
+ //
+ Status = PeiLoadImage (
+ GetPeiServicesTablePointer (),
+ *((EFI_PEI_FILE_HANDLE*)&PeiCoreFileHandle),
+ PEIM_STATE_REGISITER_FOR_SHADOW,
+ &EntryPoint,
+ &AuthenticationState
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Compute the PeiCore's function address after shaowed PeiCore.
+ // _ModuleEntryPoint is PeiCore main function entry
+ //
+ return (PEICORE_FUNCTION_POINTER)((UINTN) EntryPoint + (UINTN) PeiCore - (UINTN) _ModuleEntryPoint);
+}
+
+/**
This routine is invoked by main entry of PeiMain module during transition
from SEC to PEI. After switching stack in the PEI core, it will restart
with the old core data.
@@ -91,17 +140,17 @@ PeiCore ( IN VOID *Data
)
{
- PEI_CORE_INSTANCE PrivateData;
- EFI_STATUS Status;
- PEI_CORE_TEMP_POINTERS TempPtr;
- UINT64 Tick;
- PEI_CORE_INSTANCE *OldCoreData;
- EFI_PEI_CPU_IO_PPI *CpuIo;
- EFI_PEI_PCI_CFG2_PPI *PciCfg;
- PEICORE_FUNCTION_POINTER ShadowedPeiCore;
+ PEI_CORE_INSTANCE PrivateData;
+ EFI_STATUS Status;
+ PEI_CORE_TEMP_POINTERS TempPtr;
+ UINT64 Tick;
+ PEI_CORE_INSTANCE *OldCoreData;
+ EFI_PEI_CPU_IO_PPI *CpuIo;
+ EFI_PEI_PCI_CFG2_PPI *PciCfg;
+ EFI_HOB_HANDOFF_INFO_TABLE *HandoffInformationTable;
Tick = 0;
- OldCoreData = (PEI_CORE_INSTANCE *) Data;
+ OldCoreData = (PEI_CORE_INSTANCE *)Data;
//
// Record the system tick for first entering PeiCore.
@@ -114,22 +163,82 @@ PeiCore ( }
if (OldCoreData != NULL) {
- ShadowedPeiCore = (PEICORE_FUNCTION_POINTER) (UINTN) OldCoreData->ShadowedPeiCore;
-
- //
- // PeiCore has been shadowed to memory for first entering, so
- // just jump to PeiCore in memory here.
- //
- if (ShadowedPeiCore != NULL) {
- OldCoreData->ShadowedPeiCore = NULL;
- ShadowedPeiCore (
- SecCoreData,
- PpiList,
- OldCoreData
- );
+ if (OldCoreData->ShadowedPeiCore == NULL) {
+ //
+ //
+ // Fixup the PeiCore's private data
+ //
+ OldCoreData->Ps = &OldCoreData->ServiceTableShadow;
+ OldCoreData->CpuIo = &OldCoreData->ServiceTableShadow.CpuIo;
+ if (OldCoreData->HeapOffsetPositive) {
+ OldCoreData->HobList.Raw = (VOID *)(OldCoreData->HobList.Raw + OldCoreData->HeapOffset);
+ } else {
+ OldCoreData->HobList.Raw = (VOID *)(OldCoreData->HobList.Raw - OldCoreData->HeapOffset);
+ }
+
+ //
+ // Fixup for PeiService's address
+ //
+ SetPeiServicesTablePointer ((CONST EFI_PEI_SERVICES **)&OldCoreData->Ps);
+
+ //
+ // Update HandOffHob for new installed permenent memory
+ //
+ HandoffInformationTable = OldCoreData->HobList.HandoffInformationTable;
+ if (OldCoreData->HeapOffsetPositive) {
+ HandoffInformationTable->EfiEndOfHobList = HandoffInformationTable->EfiEndOfHobList + OldCoreData->HeapOffset;
+ } else {
+ HandoffInformationTable->EfiEndOfHobList = HandoffInformationTable->EfiEndOfHobList - OldCoreData->HeapOffset;
+ }
+ HandoffInformationTable->EfiMemoryTop = OldCoreData->PhysicalMemoryBegin + OldCoreData->PhysicalMemoryLength;
+ HandoffInformationTable->EfiMemoryBottom = OldCoreData->PhysicalMemoryBegin;
+ HandoffInformationTable->EfiFreeMemoryTop = OldCoreData->FreePhysicalMemoryTop;
+ HandoffInformationTable->EfiFreeMemoryBottom = HandoffInformationTable->EfiEndOfHobList + sizeof (EFI_HOB_GENERIC_HEADER);
+
+ //
+ // We need convert the PPI descriptor's pointer
+ //
+ ConvertPpiPointers (SecCoreData, OldCoreData);
+
+ //
+ // After the whole temporary memory is migrated, then we can allocate page in
+ // permenent memory.
+ //
+ OldCoreData->PeiMemoryInstalled = TRUE;
+
+ //
+ // Indicate that PeiCore reenter
+ //
+ OldCoreData->PeimDispatcherReenter = TRUE;
+
+ if (PcdGet64(PcdLoadModuleAtFixAddressEnable) != 0 && (OldCoreData->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {
+ //
+ // if Loading Module at Fixed Address is enabled, allocate the PEI code memory range usage bit map array.
+ // Every bit in the array indicate the status of the corresponding memory page available or not
+ //
+ OldCoreData->PeiCodeMemoryRangeUsageBitMap = AllocateZeroPool (((PcdGet32(PcdLoadFixAddressPeiCodePageNumber)>>6) + 1)*sizeof(UINT64));
+ }
+
+ //
+ // Process the Notify list and dispatch any notifies for
+ // newly installed PPIs.
+ //
+ ProcessNotifyList (OldCoreData);
+
+ //
+ // Shadow PEI Core. When permanent memory is avaiable, shadow
+ // PEI Core and PEIMs to get high performance.
+ //
+ OldCoreData->ShadowedPeiCore = ShadowPeiCore (OldCoreData);
+
+ //
+ // PeiCore has been shadowed to memory for first entering, so
+ // just jump to PeiCore in memory here.
+ //
+ OldCoreData->ShadowedPeiCore (SecCoreData, PpiList, OldCoreData);
}
- CopyMem (&PrivateData, OldCoreData, sizeof (PEI_CORE_INSTANCE));
+ CopyMem (&PrivateData, OldCoreData, sizeof (PrivateData));
CpuIo = (VOID*)PrivateData.ServiceTableShadow.CpuIo;
PciCfg = (VOID*)PrivateData.ServiceTableShadow.PciCfg;
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