diff options
Diffstat (limited to 'Core/EM/PeiRamBoot/PeiRamBootDxe.c')
| -rw-r--r-- | Core/EM/PeiRamBoot/PeiRamBootDxe.c | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/Core/EM/PeiRamBoot/PeiRamBootDxe.c b/Core/EM/PeiRamBoot/PeiRamBootDxe.c new file mode 100644 index 0000000..57c9ac9 --- /dev/null +++ b/Core/EM/PeiRamBoot/PeiRamBootDxe.c @@ -0,0 +1,368 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (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/PeiRamBootDxe.c 12 8/28/15 3:52a Tristinchou $ +// +// $Revision: 12 $ +// +// $Date: 8/28/15 3:52a $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/PEI Ram Boot/PeiRamBootDxe.c $ +// +// 12 8/28/15 3:52a Tristinchou +// [TAG] EIP235157 +// [Category] Improvement +// [Description] Security vulnerability - PeiRamBoot: Should leave cold +// boot optimization only +// +// 11 5/05/14 5:03a Calvinchen +// [TAG] EIP166551 +// [Category] Spec Update +// [Severity] Important +// [Description] Runtime attribute set for the some of the variable used +// by PEI Ram Boot driver and needs to be reviewed +// [Files] PeiRamBootDxe.c +// PeiRamBootOfbd.c +// PeiRamBoot.chm +// PeiRamBoot.cif +// +// 10 1/16/13 4:54a Calvinchen +// [TAG] EIP108319 +// [Category] Bug Fix +// [Severity] Minor +// [Symptom] When we enable PEI RAM BOOT module and set the token +// ˇ§PEI_RAM_S3_SUPPOTˇ¨ to 0, smbios will not be writable, system will +// hang up when writing smbios under DOS using DMI tool. +// [RootCause] Don't Restore the Base Address of Firmware Volume Block +// Protocol from RAM to ROM. +// [Solution] Restore the Base Address of Firmware Volume Block Protocol +// from RAM to ROM. +// [Files] PeiRamBootDxe.c +// +// 9 8/08/12 4:53a Calvinchen +// 1. Changed for ReportFv2.c by Artem's suggestion. +// 2. Fixed System hangs if Memory Mapping Changed with warm boot. +// +// 8 5/04/12 5:03a Calvinchen +// [TAG] EIP88796 +// [Category] Bug Fix +// [Severity] Minor +// [Symptom] (JP0005-Q208)When define more than two FV which has the +// same CUSTOM_SIZE, GetPhysicalAddress() returns invalid value. +// [RootCause] Coding mistake. +// [Solution] (JP0005-Q208)When define more than two FV which has the +// same CUSTOM_SIZE, GetPhysicalAddress() returns invalid value. +// [Files] PeiRamBootDxe.c +// PeiRamBoot.chm +// PeiRamBoot.cif +// +// 7 2/23/12 6:35a Calvinchen +// [TAG] EIP82264 +// [Category] Improvement +// [Description] Need to do cold boot to get the correct data in rom +// hole when changing data in rom hole. +// [Files] PeiRamBoot.sdl +// PeiRamBoot.mak +// PeiRamBoot.h +// PeiRamBoot.c +// PeiRamBootDxe.c +// PeiRamBoot.chm +// PeiRamBoot.cif +// +// 6 5/27/11 7:22a Calvinchen +// Delete HobRomImage Variable if Recovery mode. +// +// 5 4/22/11 1:28a Calvinchen +// +// 4 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 +// +// 3 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. +// +// 2 12/02/10 6:18a Calvinchen +// Bug Fixed : Fixed Update SMBIOS Structures failed with DMI Utility. +// +// 1 10/27/10 2:48a Calvinchen +// Initial Check-in. +// +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: PeiRamBootDxe.c +// +// Description: PEI RAM BOOT DXE driver. +// +//<AMI_FHDR_END> +//********************************************************************** +//---------------------------------------------------------------------------- +// Includes +// Statements that include other files +#include <AmiDxeLib.h> +#include <AmiCspLib.h> +#include <PeiRamBoot.h> +#include <Protocol\FirmwareVolumeBlock.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 +#ifndef EFI_FVB_MEMORY_MAPPED +#define EFI_FVB_MEMORY_MAPPED EFI_FVB2_MEMORY_MAPPED +#endif + +#define FVB_DEVICE_FROM_THIS(a) \ + CR(a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE) + +EFI_GUID gEfiFirmwareVolumeBlockProtocolGuid = FW_VOLUME_BLOCK_PROTOCOL_GUID; + +//---------------------------------------------------------------------------- +// Local Variables +//---------------------------------------------------------------------------- +// Function Definitions +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: DeleteHobRomImageVariable +// +// Description: Delete HobRomImage Variable event. +// +// Input: None. +// +// Output: None. +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +DeleteHobRomImageVariable ( + IN EFI_EVENT Event, + IN VOID *ParentImageHandle +) +{ + EFI_GUID RomImageAddressGuid = ROM_IMAGE_ADDRESS_GUID; + + pRS->SetVariable ( L"HobRomImage", + &RomImageAddressGuid, \ + EFI_VARIABLE_NON_VOLATILE | \ + EFI_VARIABLE_BOOTSERVICE_ACCESS, \ + 0, \ + ParentImageHandle ); + return EFI_SUCCESS; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: PeiRamBootDxeInit +// +// Description: DXE Entry Point for PeiRamBoot Driver. +// +// Input: EFI_HANDLE - ImageHandle +// EFI_SYSTEM_TABLE* - SystemTable +// +// Output: EFI_STATUS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +PeiRamBootDxeInit ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + EFI_GUID GuidHob = HOB_LIST_GUID; + EFI_STATUS Status; + EFI_GUID RomImageHobGuid = ROM_IMAGE_MEMORY_HOB_GUID; + EFI_GUID RomImageAddressGuid = ROM_IMAGE_ADDRESS_GUID; + UINTN VarSize = 0, NumHandles; + UINT8 i, j; + EFI_PHYSICAL_ADDRESS HobRomImageAddress = 0; + VOID *p = NULL; + EFI_HOB_FIRMWARE_VOLUME *FvHob = NULL; + HOB_ROM_IMAGE *HobRomImage; + EFI_HANDLE *HandleBuffer; + EFI_FW_VOL_BLOCK_DEVICE *FvbDevice; + EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock; + EFI_EVENT EvtSetupChange = NULL; + VOID *RgnSetupChange = NULL; + EFI_GUID AmitseSetupNvramUpdateGuid = \ + {0xd84beff0, 0x159a, 0x4b60, 0x9a, 0xb9, 0xac, 0x5c, 0x47, 0x4b, 0xd3, 0xb1}; + + InitAmiLib(ImageHandle, SystemTable); + + // Get RamBoot Informatoin from HOB. + HobRomImage = (HOB_ROM_IMAGE*)GetEfiConfigurationTable (pST, &GuidHob); + Status = FindNextHobByGuid (&RomImageHobGuid, (VOID**)&HobRomImage); + if (EFI_ERROR(Status)) return EFI_UNSUPPORTED; + + // Redirect the FV address to RAM and Free memory. + for (p = GetEfiConfigurationTable (pST, &GuidHob); + !(FindNextHobByType(EFI_HOB_TYPE_FV,&p)); ) { + FvHob = (EFI_HOB_FIRMWARE_VOLUME*)p; + for (i = 0; i < HobRomImage->NumOfFv; i++) { + if ((FvHob->BaseAddress == HobRomImage->FvInfo[i].MemAddress) && \ + (FvHob->Length == HobRomImage->FvInfo[i].FvLength)) { + FvHob->BaseAddress = HobRomImage->FvInfo[i].FvAddress; + pBS->FreePages (HobRomImage->FvInfo[i].MemAddress, \ + HobRomImage->FvInfo[i].NumOfPages); + break; + } + } + } + + // Restore the Base Address of Firmware Volume Block Protocol from RAM + // to ROM. + Status = pBS->LocateHandleBuffer ( ByProtocol, \ + &gEfiFirmwareVolumeBlockProtocolGuid, \ + NULL, \ + &NumHandles, \ + &HandleBuffer ); + if (EFI_ERROR(Status)) return Status; + + for (i = 0; i < NumHandles; ++i) { + Status = pBS->HandleProtocol ( HandleBuffer[i], \ + &gEfiFirmwareVolumeBlockProtocolGuid, \ + &FvBlock ); + if (EFI_ERROR(Status)) continue; + FvbDevice = FVB_DEVICE_FROM_THIS (FvBlock); + if (!(FvbDevice->FvbAttributes & EFI_FVB_MEMORY_MAPPED)) continue; +//-TRACE((-1, "FvBaseAddress[%02X] = %08X\n", i, FvbDevice->BaseAddress)); + for (j = 0; j < HobRomImage->NumOfFv; j++) { + if ((FvbDevice->BaseAddress == HobRomImage->FvInfo[j].MemAddress) && \ + (FvbDevice->NumBlocks == \ + (HobRomImage->FvInfo[j].FvLength / FLASH_BLOCK_SIZE))) { + FvbDevice->BaseAddress = HobRomImage->FvInfo[j].FvAddress; + } + } + } + + return EFI_SUCCESS; +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: PeiRamBootSmmInit +// +// Description: PeiRamBoot InSmm Function. +// +// Input: EFI_HANDLE - ImageHandle +// EFI_SYSTEM_TABLE* - SystemTable +// +// Output: EFI_STATUS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +PeiRamBootDxeSmmInit ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + return EFI_SUCCESS; +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: PeiRamBootDxeEntry +// +// Description: DXE Entry Point for PeiRamBoot Driver. +// +// Input: EFI_HANDLE - ImageHandle +// EFI_SYSTEM_TABLE* - SystemTable +// +// Output: EFI_STATUS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +PeiRamBootDxeEntry ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + InitAmiLib(ImageHandle,SystemTable); + return InitSmmHandlerEx(ImageHandle, \ + SystemTable, PeiRamBootDxeSmmInit, PeiRamBootDxeInit); +} +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2009, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//*************************************************************************
\ No newline at end of file |