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Diffstat (limited to 'Core/EM/FastBoot/FastBootDxe.c')
| -rw-r--r-- | Core/EM/FastBoot/FastBootDxe.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/Core/EM/FastBoot/FastBootDxe.c b/Core/EM/FastBoot/FastBootDxe.c new file mode 100644 index 0000000..7c158b2 --- /dev/null +++ b/Core/EM/FastBoot/FastBootDxe.c @@ -0,0 +1,184 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (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/PTT/FastBootDxe.c 2 4/07/11 8:20a Bibbyyeh $ +// +// $Revision: 2 $ +// +// $Date: 4/07/11 8:20a $ +//************************************************************************* +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/PTT/FastBootDxe.c $ +// +// 2 4/07/11 8:20a Bibbyyeh +// [TAG] EIP57430 +// [Category] New Feature +// [Description] PTT module is not compatible with core 4.6.5.0. Modify +// it to make build pass. +// [Files] FastBootDxe.c +// +// 1 3/02/11 2:23a Bibbyyeh +// [TAG] EIP51391 +// [Category] Bug Fix +// [Severity] Normal +// [Symptom] In windows, use DmiEdit to change SMBIOS data, and update. +// SMBIOS will update failure in next boot. +// [RootCause] The reason cause this issue is, ROM will copy to ram in +// end of PEI phase. When SMBIOS Dxe driver update modified data to flash, +// the firmware volume block protocol is pointer to RAM, not flash. So it +// will cause update failure. +// [Solution] Before SMBIOS Dxe driver, restore the Base Address of +// Firmware Volume Block Protocol from RAM to ROM. +// [Files] FastBoot.sdl FastBoot.mak FastBoot.cif FastBootDxe.c +// +// +//************************************************************************* +//<AMI_FHDR_START> +// +// Name: FastBootDxe.c +// +// Description: +// Implementation of fast boot Dxe functionality +// +//<AMI_FHDR_END> +//************************************************************************* +//---------------------------------------------------------------------------- +// Includes +// Statements that include other files +#include <AmiDxeLib.h> +#include <AmiCspLib.h> +#include <Protocol\FirmwareVolumeBlock.h> +#include <FFS.h> +//---------------------------------------------------------------------------- +// Function Externs + +//---------------------------------------------------------------------------- +// Local prototypes +typedef struct { + UINTN Base; + UINTN Length; +} LBA_CACHE; + +typedef struct { + MEMMAP_DEVICE_PATH MemMapDevPath; + EFI_DEVICE_PATH_PROTOCOL EndDevPath; +} FV_DEVICE_PATH; + + +typedef struct { + UINTN Signature; + EFI_HANDLE Handle; + FV_DEVICE_PATH DevicePath; + EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FwVolBlockInstance; + UINTN NumBlocks; + LBA_CACHE *LbaCache; + UINT32 FvbAttributes; + EFI_PHYSICAL_ADDRESS BaseAddress; +} EFI_FW_VOL_BLOCK_DEVICE; + +#define FVB_DEVICE_SIGNATURE EFI_SIGNATURE_32('_','F','V','B') + +#ifndef _CR +#define _CR(Record, TYPE, Field) ((TYPE *) ((CHAR8 *) (Record) - (CHAR8 *) &(((TYPE *) 0)->Field))) +#endif +#ifndef CR +#define CR(Record, TYPE, Field, Signature) _CR (Record, TYPE, Field) +#endif + +#define FVB_DEVICE_FROM_THIS(a) \ + CR(a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE) + + +//---------------------------------------------------------------------------- +// Local Variables +//---------------------------------------------------------------------------- +// Function Definitions +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: FastBootDxeEntry +// +// Description: DXE Entry Point for FastBoot Driver. +// +// Input: EFI_HANDLE - ImageHandle +// EFI_SYSTEM_TABLE* - SystemTable +// +// Output: EFI_STATUS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +FastBootDxeEntry ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + + EFI_GUID EfiFirmwareVolumeBlockProtocolGuid = FW_VOLUME_BLOCK_PROTOCOL_GUID; + EFI_STATUS Status; + UINTN NumHandles; + UINT8 i; + + EFI_HANDLE *HandleBuffer; + EFI_FW_VOL_BLOCK_DEVICE *FvbDevice; + EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock; + + + InitAmiLib(ImageHandle, SystemTable); + + TRACE((-1,"FB:Restore the Base Address of Firmware Volume Block Protocol from RAM to ROM\n")); +// Restore the Base Address of Firmware Volume Block Protocol from RAM +// to ROM. + Status = pBS->LocateHandleBuffer ( ByProtocol, \ + &EfiFirmwareVolumeBlockProtocolGuid, \ + NULL, \ + &NumHandles, \ + &HandleBuffer ); + if (EFI_ERROR(Status)) return Status; + + for (i = 0; i < NumHandles; ++i) { + Status = pBS->HandleProtocol ( HandleBuffer[i], \ + &EfiFirmwareVolumeBlockProtocolGuid, \ + &FvBlock ); + if (EFI_ERROR(Status)) continue; + FvbDevice = FVB_DEVICE_FROM_THIS (FvBlock); +#if PI_SPECIFICATION_VERSION < 0x00010000 + if (!(FvbDevice->FvbAttributes & EFI_FVB_MEMORY_MAPPED)) continue; +#else + if (!(FvbDevice->FvbAttributes & EFI_FVB2_MEMORY_MAPPED)) continue; +#endif + if (FvbDevice->NumBlocks == FV_BB_BLOCKS) + FvbDevice->BaseAddress = FV_BB_BASE; + else if (FvbDevice->NumBlocks == FV_MAIN_BLOCKS) + FvbDevice->BaseAddress = FV_MAIN_BASE; + + } + + return EFI_SUCCESS; +} +//************************************************************************* +//************************************************************************* +//** ** +//** (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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