diff options
Diffstat (limited to 'Core/EM/PeiRamBoot/PeiRamBootHook.c')
| -rw-r--r-- | Core/EM/PeiRamBoot/PeiRamBootHook.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/Core/EM/PeiRamBoot/PeiRamBootHook.c b/Core/EM/PeiRamBoot/PeiRamBootHook.c new file mode 100644 index 0000000..c01e103 --- /dev/null +++ b/Core/EM/PeiRamBoot/PeiRamBootHook.c @@ -0,0 +1,282 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (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 ** +//** ** +//************************************************************************* +//*************************************************************************
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