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//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/PEI Ram Boot/PeiRamBootHook.c 8 8/28/15 3:51a Tristinchou $
//
// $Revision: 8 $
//
// $Date: 8/28/15 3:51a $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/PEI Ram Boot/PeiRamBootHook.c $
//
// 8 8/28/15 3:51a Tristinchou
// [TAG] EIP235157
// [Category] Improvement
// [Description] Security vulnerability - PeiRamBoot: Should leave cold
// boot optimization only
//
// 7 6/21/11 2:22a Calvinchen
// ¡P Bug Fixed:
// Bug Fixed:
// 1. Build failed if Core 4.6.4.0.
// 2. System could hang if SAVE_ENTIRE_FV_TO_MEM = 1with AMD platform.
//
// 6 5/27/11 7:22a Calvinchen
// Build failed if Core 4.6.4.1.
//
// 5 4/25/11 3:59a Calvinchen
// Build failed if Core version greater than 4.6.4.1 with PI 0.91.
//
// 4 4/22/11 1:27a Calvinchen
//
// 3 3/22/11 7:52a Calvinchen
// [TAG] EIP56322
// [Category] Bug Fix
// [Severity] Normal
// [Symptom] System hangs after changing TPM settings in SETUP.
// [RootCause] System Memory Mappings are changed with warm boot.
// [Solution] BIOS always go cold boot path if system memory mappings
// are changed
// [Files] PeiRamBoot.sdl
// PeiRamBoot.mak
// PeiRamBoot.dxs
// PeiRamBoot.h
// PeiRamBoot.c
// PeiRamBootHook.c
// PeiRamBootDxe.c
// PeiRamBootOfbd.c
// PeiRamBoot.chm
// PeiRamBoot.cif
//
// 2 12/14/10 2:25a Calvinchen
// Improvement :
// 1. Added an eLink "PeiRamBootList" for fast warm boot support
// (PEI_RAM_BOOT_S3_SUPPORT = 1). If system boots in warm boot state, BIOS
// directly boot to previous copied ROM image in RAM to save time of
// copying ROM.
// 2. Added "PEI_RAM_BOOT_S3_SUPPORT" = "2" for saving runtime memory, it
// only keep necessary PEIM FFS in runtime memory for S3 resume
// improvement.
//
// 1 10/27/10 2:48a Calvinchen
// Initial Check-in.
//
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: PeiRamBootHook.c
//
// Description: Hook file for PEI Ram Boot module.
//
//<AMI_FHDR_END>
//**********************************************************************
//----------------------------------------------------------------------------
// Includes
// Statements that include other files
#include <Tiano.h>
#include <PeiCore.h>
#include <Token.h>
#include <PeiRamBoot.h>
//----------------------------------------------------------------------------
// Function Externs
//----------------------------------------------------------------------------
// Local prototypes
//----------------------------------------------------------------------------
// Local Variables
//----------------------------------------------------------------------------
// Function Definitions
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: PeiDebugPrint
//
// Description: Worker function for debug print.
//
// Input: EFI_PEI_SERVICES** - PeiServices
// UINTN - ErrorLevel
// CHAR8* - Format
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
#ifdef EFI_DEBUG
VOID
PeiDebugPrint (
#if ((PI_SPECIFICATION_VERSION >= 0x0001000A) || (CORE_COMBINED_VERSION > 262785))
#if (CORE_COMBINED_VERSION > 262785)
IN CONST EFI_PEI_SERVICES **PeiServices,
#else
IN EFI_PEI_SERVICES **PeiServices,
#endif
#else
IN EFI_PEI_SERVICES **PeiServices,
#endif
IN UINTN ErrorLevel,
IN CHAR8 *Format,
IN ...
)
{
CHAR8 Buffer[256];
va_list ArgList = va_start(ArgList,Format);
PrepareStatusCodeString( Buffer, sizeof(Buffer), Format, ArgList );
(*PeiServices)->ReportStatusCode (
(EFI_PEI_SERVICES**)PeiServices, EFI_DEBUG_CODE,
EFI_SOFTWARE_UNSPECIFIED, 0, NULL,
(EFI_STATUS_CODE_DATA *)Buffer
);
va_end(ArgList);
}
#endif
#if (PI_SPECIFICATION_VERSION >= 0x0001000A)
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: IsPeimDispatched
//
// Description:
//
// Input: EFI_PEI_SERVICES** - PeiServices
// EFI_PHYSICAL_ADDRESS - Buffer
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
BOOLEAN
IsPeimDispatched (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_FFS_FILE_HEADER *FfsFile,
IN UINTN Index
)
{
PEI_CORE_INSTANCE *Private = NULL;
Private = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);
return Private->Fv[Private->CurrentPeimFvCount].PeimState[Index];
}
#else
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: GetDispatchedPeimBitMap
//
// Description: This procedure gets current PEIM dispatched BitMap from
// DispatchedData of Privatedata of PeiService.
//
// Input: EFI_PEI_SERVICES** - PeiServices
// EFI_PHYSICAL_ADDRESS - Buffer
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
UINT64
GetDispatchedPeimBitMap (
IN EFI_PEI_SERVICES **PeiServices
)
{
PEI_CORE_INSTANCE *PrivateData = NULL;
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);
return PrivateData->DispatchData.DispatchedPeimBitMap;
}
#endif
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: SwitchPeiServiceDataToRam
//
// Description: This procedure redirect the FV Bass Address of Private data of
// PEI Service from ROM to RAM.
//
// Input: EFI_PEI_SERVICES** - PeiServices
// EFI_PHYSICAL_ADDRESS - Buffer
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID
SwitchPeiServiceDataToRam (
IN EFI_PEI_SERVICES **PeiServices,
IN HOB_ROM_IMAGE *HobRomImage
)
{
PEI_CORE_INSTANCE *PrivateData = NULL;
EFI_PHYSICAL_ADDRESS FvAddress = 0, PeimAddress = 0, Buffer = 0;
EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList = NULL;
UINTN i = 0, j = 0, Index;
EFI_STATUS Status = EFI_SUCCESS;
EFI_FFS_FILE_HEADER *FfsFile = NULL;
PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);
#if defined(PI_SPECIFICATION_VERSION) && (PI_SPECIFICATION_VERSION >= 0x0001000A)
for (i = 0, Index = 0; i < HobRomImage->NumOfFv; i++) {
Index = PrivateData->CurrentPeimFvCount;
FvAddress = \
(EFI_PHYSICAL_ADDRESS)PrivateData->Fv[Index].FvHeader;
if ((UINT32)FvAddress != HobRomImage->FvInfo[i].FvAddress) continue;
Buffer = HobRomImage->FvInfo[i].MemAddress;
PrivateData->Fv[Index].FvHeader = (EFI_FIRMWARE_VOLUME_HEADER*)Buffer;
for (j = 0; (j < PEI_CORE_MAX_PEIM_PER_FV) && \
(PrivateData->CurrentFvFileHandles[j] != NULL); j++) {
PrivateData->CurrentFvFileHandles[j] = \
(EFI_PEI_FILE_HANDLE)(((UINTN)PrivateData->CurrentFvFileHandles[j] - \
(UINTN)FvAddress) + Buffer);
PrivateData->Fv[Index].FvFileHandles[j] = \
(EFI_PEI_FILE_HANDLE)(((UINTN)PrivateData->Fv[Index].FvFileHandles[j] - \
(UINTN)FvAddress) + Buffer);
}
}
#else // // PI 0.9 & 1.0
// Update PrivateData.DispatchData of PeiService.
FvAddress = (EFI_PHYSICAL_ADDRESS)PrivateData->DispatchData.BootFvAddress;
for (i = 0, Index = 0; i < HobRomImage->NumOfFv; i++) {
if ((UINT32)FvAddress != HobRomImage->FvInfo[i].FvAddress) continue;
Buffer = HobRomImage->FvInfo[i].MemAddress;
PrivateData->DispatchData.BootFvAddress = \
(EFI_FIRMWARE_VOLUME_HEADER*)(Buffer);
PrivateData->DispatchData.CurrentFvAddress = \
(EFI_FIRMWARE_VOLUME_HEADER*)(Buffer);
// CurrentPeimAddress point to last PEIM, so, dispatcher will start at
// the 1st in next time.
// find last FFS..
PeimAddress = (EFI_PHYSICAL_ADDRESS)PrivateData->DispatchData.CurrentPeimAddress;
PrivateData->DispatchData.CurrentPeimAddress = \
(EFI_FFS_FILE_HEADER*)(Buffer + (PeimAddress - FvAddress));
break;
}
#endif // PI 0.9 & 1.0
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2009, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
