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authorraywu <raywu0301@gmail.com>2018-06-15 00:00:50 +0800
committerraywu <raywu0301@gmail.com>2018-06-15 00:00:50 +0800
commitb7c51c9cf4864df6aabb99a1ae843becd577237c (patch)
treeeebe9b0d0ca03062955223097e57da84dd618b9a /Core/EM/SMIFlash
downloadzprj-b7c51c9cf4864df6aabb99a1ae843becd577237c.tar.xz
init. 1AQQW051HEADmaster
Diffstat (limited to 'Core/EM/SMIFlash')
-rw-r--r--Core/EM/SMIFlash/SMIFlash.c990
-rw-r--r--Core/EM/SMIFlash/SMIFlash.chmbin0 -> 35457 bytes
-rw-r--r--Core/EM/SMIFlash/SMIFlash.cif16
-rw-r--r--Core/EM/SMIFlash/SMIFlash.dxs103
-rw-r--r--Core/EM/SMIFlash/SMIFlash.mak183
-rw-r--r--Core/EM/SMIFlash/SMIFlash.sdl349
-rw-r--r--Core/EM/SMIFlash/SMIFlashDxe.dxs72
-rw-r--r--Core/EM/SMIFlash/SMIFlashLinks.c2227
8 files changed, 3940 insertions, 0 deletions
diff --git a/Core/EM/SMIFlash/SMIFlash.c b/Core/EM/SMIFlash/SMIFlash.c
new file mode 100644
index 0000000..6566102
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlash.c
@@ -0,0 +1,990 @@
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2009, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Modules/SMIFlash/SMIFlash.c 52 3/23/16 3:58a Calvinchen $
+//
+// $Revision: 52 $
+//
+// $Date: 3/23/16 3:58a $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/SMIFlash/SMIFlash.c $
+//
+// 52 3/23/16 3:58a Calvinchen
+// [TAG] EIP262060
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] Buffer Overflow Vulnerability
+// [RootCause] SmiFlash interface security vulnerability if the buffer
+// address is starting before/less SMM Base and the buffer length is
+// larger than SMM size.
+// [Solution] Adapted the CheckAddressRange function as the
+// "AmiValidateMemoryBuffer" function of the AptioV.
+// [Files] SMIFlash.c
+//
+// 51 1/08/16 3:59a Calvinchen
+// [TAG] EIP249791
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] SMM Buffer Validation - additional vulnerability
+// [RootCause] BufAddr is an embedded input pointer which has not been
+// validated to be outside of SMRAM and is being used as a destination
+// buffer for read/write operation from flash.
+//
+// [Solution] Validate BufAddr to must be outside of SMRAM.
+// [Files] SMIFlash.c
+// SMIFlash.chm
+// SMIFlash.cif
+//
+// 50 6/21/13 4:32a Tristinchou
+// [TAG] EIP125801
+// [Category] Improvement
+// [Description] SMI Flash handler could be used to set value in SMRAM.
+// Check the adrress before use the function.
+// [Files] SMIFlash.c
+//
+// 49 11/02/12 7:13a Calvinchen
+// [TAG] EIP64328
+// [Category] Improvement
+// [Description] Improvement:
+// 1. (EIP64328) Update modules to be compliant with PI 1.2 and UEFI
+// 2.3.1 specifications.
+// BugFix:
+// 1. (EIP100950) Fix the attribute of Win8 Debug Variable been changed
+// after restored.
+// 2. (EIP98199) The #### in Boot#### should be upper case.
+// [Files] SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlashDxe.dxs
+// SMIFlash.cif
+//
+// 48 3/06/12 2:40a Klzhan
+// NVRAM backup address will not updated.
+//
+// 47 1/16/12 2:29a Calvinchen
+// [TAG] EIPNone
+// [Category] Improvement
+// [Description] Updated for Secure Update.
+//
+// 46 5/17/11 3:16a Klzhan
+// Report BIOS project tag length to AFU.
+//
+// 45 3/23/11 4:44a Calvinchen
+// [TAG] EIP53067
+// [Category] Improvement
+// [Description] Modified for OEM Secure BIOS Update Requirements.
+// [Files] SMIFlash.sdl
+// SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlash.cif
+//
+// 44 1/21/11 4:48a Klzhan
+// Improvement : Check CPU number in SMIHandler
+//
+// 43 12/14/10 4:16a Klzhan
+// Move Locate USB Protocol to SMIFlashLinks.c.
+//
+// 42 12/14/10 1:13a Klzhan
+// Improvement : Move ELinks to SMIFlashLinks.c.
+//
+// 41 10/20/10 2:21a Klzhan
+// Remove ASFU related codes, ASFU will implement with OFBD module.
+//
+// 40 10/19/10 6:58a Klzhan
+// Improvement : Support Secure Flash Update.
+// EIP : 46069
+//
+// 39 8/10/10 2:40a Klzhan
+// Improvement : Replace Memory Read by SPIRead when checking flash data.
+//
+// 38 6/15/10 3:12a Klzhan
+// Improvement: Add Elink to modify GetFlashInfo.
+//
+// 37 4/14/10 5:43a Klzhan
+// BugFix : Fix compile error when FAULT_TOLERANT_NVRAM_UPDATE is off.
+//
+// 36 4/13/10 4:26a Klzhan
+// Improvement : Report NVRam backup as NVRam block.
+//
+// 35 4/12/10 7:45a Klzhan
+// Improvement : When FAULT_TOLERANT_NVRAM_UPDATE is on and System working
+// at NVRam backup address, system works fine on next boot.
+//
+// 34 4/12/10 3:37a Klzhan
+// Improvement : Add E-Link to Enable/Disable USB KBD.
+// BugFix : Correct USB driver verion control.
+//
+// 33 4/08/10 2:22a Rameshr
+// Usb changes added based on AMIUSB release version.
+//
+// 32 4/07/10 1:53a Rameshr
+// USB K/B and USB M/S should be stopped during flashing BIOS.
+// EIP 37130
+//
+// 31 3/26/10 5:25a Rameshr
+// After flashupdate, Silent boot setup option is not restored to default
+// value
+// EIP 36617
+//
+// 30 3/02/10 2:59a Klzhan
+// Improvement : If Setup PassWord Length is changed, Password will not be
+// restore when update NVRam region.
+//
+// 29 3/02/10 12:43a Klzhan
+// Improvement : Disable Power Button when flash ROM image.(EIP35662)
+//
+// 28 2/26/10 2:31a Klzhan
+// 1. Improvement : Restore "Windows Boot Manager" for EFI OS(EIP 32339)
+//
+// 27 12/21/09 4:39a Klzhan
+// Improvement : Updated for Aptio Source Enhancement.
+//
+// 26 11/26/09 6:03a Klzhan
+// Improvement : Add Flash Chip info.EIP 30081
+//
+// 25 8/25/09 8:22a Klzhan
+// Improvement: Support Flash ME FW.
+//
+// 24 5/22/09 8:19p Felixp
+// SmiFlash module is updated to replace Flash library calls with the
+// calls to new Core 4.6.3.6 Flash Protocol .
+//
+// 23 4/03/09 11:28a Fredericko
+// Reverting changes for EIP 18818. causing Afu flash error.
+//
+// 22 3/05/09 1:17p Felixp
+// - Bug fix. EIP 17632.
+// Flash Blocks that do not belong to FV_BB, FV_MAIN, and FV_NVRAM
+// have been reported as boot block.
+// The SmiFlash.c is updated to report these blocks as non critical
+// blocks.
+// The SmiFlash.h header is updated to define non critical block type
+// (NC_BLOCK ).
+// - Headers updated.
+//
+// 21 2/02/09 6:46p Fredericko
+// Changes for EIP 18819: Using FlashRead to read from flash part. Changed
+// SMIFLASH_RRE_UPDATE_LIST to SMIFLASH_PRE_UPDATE_LIST
+//
+// 19 1/29/09 7:33p Fredericko
+// Added code to account for functions (ELinked) that need to run before
+// we program flash and after we program flash. EIP 18819
+//
+// 18 1/13/09 4:36p Fredericko
+// EIP18723: Increase the size of Index (to UINT16) variable for case
+// where number of blocks is more than 255.
+//
+// 17 3/07/08 11:41a Rameshraju
+// Readflash failed for 1.5Mb flash size
+//
+// 16 8/21/07 3:39p Pats
+// Removed calculations for sizeof(AMITSESETUP)
+//
+// 15 8/17/07 4:37p Pats
+// Fixed sizeof problem.
+//
+// 14 8/16/07 6:12p Pats
+// Sizeof was returning wrong size for AMITSESETUP.
+//
+// 13 8/16/07 10:54a Pats
+// Fixed problem with setvariable call in password preservation path.
+//
+// 12 8/15/07 7:06p Pats
+// Modified to support preservation of passwords through flashing.
+//
+// 11 1/24/07 1:42p Felixp
+// Erase/Programming code changed to use low level flash routines because
+// AFU sends write requests, for a chunks of data smaller then the flash
+// block.
+//
+// 10 12/29/06 3:04p Felixp
+// 1. Updated to use new Flash Interface.
+// 2. Embedded Controller support added.
+//
+// 9 3/24/06 7:57p Felixp
+//
+// 7 11/11/05 11:46a Markw
+// Renamed IntallSmmHandler to InitSmmHandler because of build errors
+// because another driver used InstallSmmHandler.
+//
+// 6 11/09/05 3:09p Yakovlevs
+// InSmmFunction() "not all controls return a value" compiler warning
+// fixed
+//
+// 5 11/08/05 6:05p Markw
+// Using libary function InstallSmiHandler.
+//
+// 4 7/12/05 11:19a Markw
+// Add code to detect which CPU is executing.
+//
+// 3 5/02/05 6:42p Markw
+// Added Eswar's updates.
+//
+// 2 5/02/05 6:25p Markw
+//
+// 1 4/05/05 3:47p Sivagarn
+// Initial Checkin
+//
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: SMIFlash.c
+//
+// Description: SMIFlash Driver.
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+#include <AmiDxeLib.h>
+#include <Token.h>
+#include <Protocol\SmiFlash.h>
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+#include <Protocol\SmmCpu.h>
+#include <Protocol\SmmBase2.h>
+#include <Protocol\SmmSwDispatch2.h>
+#define RETURN(status) {return status;}
+#else
+#include <Protocol\SmmBase.h>
+#include <Protocol\SmmSwDispatch.h>
+#define RETURN(status) {return ;}
+#endif
+#include <Protocol\DevicePath.h>
+#include <Protocol\LoadedImage.h>
+#include <Protocol\FlashProtocol.h>
+#include <Flash.h>
+#include <AmiSmm.h>
+#include <Setup.h>
+#include <AmiHobs.h>
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+#include <Protocol\AmiUsbController.h>
+#endif
+#endif
+
+//----------------------------------------------------------------------
+// component MACROs
+#define FLASH_EMPTY_BYTE (UINT8)(-FLASH_ERASE_POLARITY)
+#define STR(a) CONVERT_TO_STRING(a)
+//----------------------------------------------------------------------
+// Module defined global variables
+
+//----------------------------------------------------------------------
+// Module specific global variable
+EFI_GUID gSwSmiCpuTriggerGuid = SW_SMI_CPU_TRIGGER_GUID;
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+EFI_GUID gEfiSmmSwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH2_PROTOCOL_GUID;
+EFI_GUID gEfiSmmBase2ProtocolGuid = EFI_SMM_BASE2_PROTOCOL_GUID;
+EFI_GUID gEfiSmmCpuProtocolGuid = EFI_SMM_CPU_PROTOCOL_GUID;
+EFI_SMM_BASE2_PROTOCOL *gSmmBase2;
+EFI_SMM_CPU_PROTOCOL *gSmmCpu;
+#else
+EFI_GUID gEfiSmmSwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH_PROTOCOL_GUID;
+#endif
+EFI_GUID gEfiSmiFlashProtocolGuid = EFI_SMI_FLASH_GUID;
+
+
+// oem flash write enable/disable list creation code must be in this order
+typedef VOID (SMIFLASH_UPDATE) (VOID);
+extern SMIFLASH_UPDATE SMIFLASH_PRE_UPDATE_LIST EndOfSMIFlashList;
+extern SMIFLASH_UPDATE SMIFLASH_END_UPDATE_LIST EndOfSMIFlashList;
+SMIFLASH_UPDATE* SMIFlashPreUpdate[] = {SMIFLASH_PRE_UPDATE_LIST NULL};
+SMIFLASH_UPDATE* SMIFlashEndUpdate[] = {SMIFLASH_END_UPDATE_LIST NULL};
+typedef VOID (SMIFLASH_PRE_HANDLER) (UINT8 Date, UINT64 pInfoBlock);
+typedef VOID (SMIFLASH_END_HANDLER) (UINT8 Date, UINT64 pInfoBlock);
+extern SMIFLASH_PRE_HANDLER SMIFLASH_PRE_HANDLER_LIST EndOfPreHandlerList;
+extern SMIFLASH_END_HANDLER SMIFLASH_END_HANDLER_LIST EndOfEndHandlerList;
+SMIFLASH_PRE_HANDLER* SMIFlashPreHandler[] = {SMIFLASH_PRE_HANDLER_LIST NULL};
+SMIFLASH_END_HANDLER* SMIFlashEndHandler[] = {SMIFLASH_END_HANDLER_LIST NULL};
+
+typedef VOID (SMIFLASH_FUNCTION) (VOID);
+extern SMIFLASH_FUNCTION SMIFLASH_IN_SMM_LIST EndOfInSmmList;
+SMIFLASH_FUNCTION* SMIFlashInSmm[] = {SMIFLASH_IN_SMM_LIST NULL};
+extern SMIFLASH_FUNCTION SMIFLASH_NOT_IN_SMM_LIST EndOfNotInSmmList;
+SMIFLASH_FUNCTION* SMIFlashNotInSmm[] = {SMIFLASH_NOT_IN_SMM_LIST NULL};
+
+FLASH_PROTOCOL *Flash = NULL;
+SMM_HOB gSmmHob;
+#ifdef FLASH_PART_STRING_LENGTH
+VOID GetFlashPartInfomation(UINT8 *pBlockAddress, UINT8 *Buffer);
+#endif
+//----------------------------------------------------------------------
+// externally defined variables
+
+//----------------------------------------------------------------------
+// Function definitions
+EFI_STATUS
+GetFlashInfo(
+ IN OUT INFO_BLOCK *pInfoBlock
+);
+EFI_STATUS EnableFlashWrite(
+ IN OUT FUNC_BLOCK *pFuncBlock
+);
+EFI_STATUS DisableFlashWrite(
+ IN OUT FUNC_BLOCK *pFuncBlock
+);
+EFI_STATUS ReadFlash(
+ IN OUT FUNC_BLOCK *pFuncBlock
+);
+EFI_STATUS WriteFlash(
+ IN OUT FUNC_BLOCK *pFuncBlock
+);
+EFI_STATUS EraseFlash(
+ IN OUT FUNC_BLOCK *pFuncBlock
+);
+EFI_SMI_FLASH_PROTOCOL SmiFlash = {
+ GetFlashInfo,
+ EnableFlashWrite,
+ DisableFlashWrite,
+ ReadFlash,
+ WriteFlash,
+ EraseFlash,
+ FLASH_SIZE
+};
+//<AMI_PHDR_START>
+//---------------------------------------------------------------------------
+//
+// Procedure: CheckAddressRange
+//
+// Description: Check address range to avoid TSEG area.
+//
+// Input:
+// Address - starting address
+// Range - length of the area
+//
+// Output:
+// EFI_SUCCESS - Access granted
+// EFI_ACCESS_DENIED - Access denied!
+//
+//---------------------------------------------------------------------------
+//<AMI_PHDR_END>
+
+EFI_STATUS CheckAddressRange( IN UINT8 *Address, IN UINTN Range )
+{
+ // Check the size and range
+ if (((EFI_PHYSICAL_ADDRESS)Address + Range) < (EFI_PHYSICAL_ADDRESS)Address)
+ return EFI_INVALID_PARAMETER; // overflow
+
+ if (((EFI_PHYSICAL_ADDRESS)Address >= gSmmHob.Tseg) && \
+ ((EFI_PHYSICAL_ADDRESS)Address < (gSmmHob.Tseg + gSmmHob.TsegLength)))
+ return EFI_ACCESS_DENIED; // Buffer starts in SMRAM
+
+ if (((EFI_PHYSICAL_ADDRESS)Address < gSmmHob.Tseg) && \
+ (((EFI_PHYSICAL_ADDRESS)Address + Range) > gSmmHob.Tseg))
+ return EFI_ACCESS_DENIED; // Buffer overlaps with SMRAM
+
+ return EFI_SUCCESS;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: GetFlashInfo
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS
+GetFlashInfo(
+ IN OUT INFO_BLOCK *pInfoBlock
+)
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+ UINT32 BuffLen = 0;
+ UINT64 BlkOff;
+ BLOCK_DESC *pBlock;
+ UINT16 Index;
+ UINT32 Add;
+ UINT32 Flash4GBMapStart;
+ UINT16 NumBlocks, MainStart, MainEnd,
+ NVStart, NVEnd, BBStart, BBEnd;
+ UINT16 LastNcb = 0xFFFF;
+ UINT8 NcbType = NC_BLOCK;
+#if EC_FIRMWARE_UPDATE_INTERFACE_SUPPORT && SMI_FLASH_INTERFACE_VERSION > 10
+ UINT16 ECStart, ECEnd;
+#endif
+#ifdef FAULT_TOLERANT_NVRAM_UPDATE
+#if FAULT_TOLERANT_NVRAM_UPDATE
+ UINT16 NVBackupStart, NVBackupEnd;
+#endif
+#endif
+
+ BuffLen = pInfoBlock->Length; // Total buffer length
+ pInfoBlock->Version = SMI_FLASH_INTERFACE_VERSION;
+ pInfoBlock->Implemented = 0;
+#if SMI_FLASH_INTERFACE_VERSION > 10
+#if EC_FIRMWARE_UPDATE_INTERFACE_SUPPORT
+ pInfoBlock->ECVersionOffset = EC_VERSION_OFFSET;
+ pInfoBlock->ECVersionMask = EC_VERSION_MASK;
+#else
+ pInfoBlock->ECVersionOffset = 0;
+ pInfoBlock->ECVersionMask = 0;
+#endif
+#endif
+
+ // Reduce number of bytes used for header information
+ BuffLen -= EFI_FIELD_OFFSET( INFO_BLOCK, Blocks);
+
+ // Get the total block count
+ pInfoBlock->TotalBlocks = NumBlocks = NUMBER_OF_BLOCKS;
+
+ // Calculate the flash mapping start address. This is calculated
+ // as follows:
+ // 1. Find the total size of the flash (FLASH_BLOCK_SIZE *
+ // pInfoBlock->TotalBlocks)
+ // 2. Subtract the total flash size from 4GB
+ Flash4GBMapStart = 0xFFFFFFFF - (FLASH_BLOCK_SIZE * NumBlocks);
+ Flash4GBMapStart ++;
+
+ // Fill the flash region start & end values
+ BBStart = (FV_BB_BASE - Flash4GBMapStart) / FLASH_BLOCK_SIZE;
+ BBEnd = BBStart + FV_BB_BLOCKS - 1;
+
+ MainStart = (FV_MAIN_BASE - Flash4GBMapStart) / FLASH_BLOCK_SIZE;
+ MainEnd = MainStart + FV_MAIN_BLOCKS - 1;
+
+ NVStart = (NVRAM_ADDRESS - Flash4GBMapStart) / FLASH_BLOCK_SIZE;
+ NVEnd = NVStart + NVRAM_BLOCKS - 1;
+
+#ifdef FAULT_TOLERANT_NVRAM_UPDATE
+#if FAULT_TOLERANT_NVRAM_UPDATE
+ NVBackupStart = (NVRAM_BACKUP_ADDRESS - Flash4GBMapStart) / FLASH_BLOCK_SIZE;
+ NVBackupEnd = NVBackupStart + NVRAM_BLOCKS - 1;
+#endif
+#endif
+
+#if EC_FIRMWARE_UPDATE_INTERFACE_SUPPORT && SMI_FLASH_INTERFACE_VERSION > 10
+ ECStart = (EC_BASE - Flash4GBMapStart) / FLASH_BLOCK_SIZE;
+ ECEnd = ECStart + EC_BLOCKS - 1;
+#endif
+
+ BlkOff = (UINT64)&pInfoBlock->Blocks;
+
+ // Chek whether we have enough buffer space
+ if (BuffLen < (sizeof (BLOCK_DESC) * NumBlocks)) {
+ pInfoBlock->Implemented = 1;
+ return Status;
+ }
+
+ for (Index = 0; Index < NumBlocks; Index++) {
+
+ pBlock = (BLOCK_DESC *)BlkOff;
+ Add = Index * FLASH_BLOCK_SIZE;
+
+ pBlock->StartAddress = Add;
+ Add |= Flash4GBMapStart;
+ pBlock->BlockSize = FLASH_BLOCK_SIZE;
+
+ if ((Index >= MainStart) && (Index <= MainEnd))
+ pBlock->Type = MAIN_BLOCK;
+ else if ((Index >= NVStart) && (Index <= NVEnd))
+ pBlock->Type = NV_BLOCK;
+ else if ((Index >= BBStart) && (Index <= BBEnd))
+ pBlock->Type = BOOT_BLOCK;
+#ifdef FAULT_TOLERANT_NVRAM_UPDATE
+#if FAULT_TOLERANT_NVRAM_UPDATE
+ else if ((Index >= NVBackupStart) && (Index <= NVBackupEnd))
+ {
+ pBlock->Type = NVB_BLOCK;
+ }
+#endif
+#endif
+#if EC_FIRMWARE_UPDATE_INTERFACE_SUPPORT && SMI_FLASH_INTERFACE_VERSION > 10
+ else if ((Index >= ECStart) && (Index <= ECEnd))
+ pBlock->Type = EC_BLOCK;
+#endif
+ else {
+ if (LastNcb+1 != Index) NcbType++;
+
+ pBlock->Type = NcbType;
+ LastNcb=Index;
+ }
+ BlkOff += sizeof (BLOCK_DESC);
+ }
+
+ // Info AFU Project Tag length.
+ if (((UINT64)pInfoBlock + pInfoBlock->Length) > (BlkOff + 5))
+ {
+ CHAR8* ProjectTag = STR(PROJECT_TAG);
+ UINTN TagLength;
+ UINT8 ProjectTagSign[4] = {'$','B','P','T'};
+
+ TagLength = Strlen(ProjectTag);
+
+ MemCpy ( (UINT8*)BlkOff, ProjectTagSign, 4 );
+ BlkOff += sizeof (UINT32);
+ *(UINT8*)BlkOff = (UINT8)TagLength;
+ BlkOff += 1;
+ }
+
+#ifdef FLASH_PART_STRING_LENGTH
+ if (((UINT64)pInfoBlock + pInfoBlock->Length) > \
+ (BlkOff + FLASH_PART_STRING_LENGTH + 8))
+ GetFlashPartInfomation ( (UINT8*)Flash4GBMapStart, (UINT8*)BlkOff );
+#endif
+ return EFI_SUCCESS;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: EnableFlashWrite
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS EnableFlashWrite(
+ IN OUT FUNC_BLOCK *pFuncBlock
+)
+{
+ return Flash->DeviceWriteEnable();
+}
+
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: DisableFlashWrite
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS DisableFlashWrite(
+ IN OUT FUNC_BLOCK *pFuncBlock
+)
+{
+ return Flash->DeviceWriteDisable();
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: EraseFlash
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS EraseFlash(
+ IN OUT FUNC_BLOCK *pFuncBlock
+)
+{
+ EFI_STATUS Status;
+ UINT8 *BlockAddress;
+ BlockAddress = (UINT8*)(UINTN)(pFuncBlock->BlockAddr + \
+ (0xFFFFFFFF - SmiFlash.FlashCapacity + 1));
+ (UINT32)BlockAddress &= (0xFFFFFFFF - FLASH_BLOCK_SIZE + 1);
+ if (EFI_ERROR(CheckAddressRange (BlockAddress, \
+ FlashBlockSize))) return EFI_ACCESS_DENIED;
+ Status = Flash->Erase(BlockAddress, FlashBlockSize);
+ pFuncBlock->ErrorCode = EFI_ERROR(Status) != 0;
+ return Status;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: ReadFlash
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS ReadFlash(
+ IN OUT FUNC_BLOCK *pFuncBlock
+)
+{
+ UINT32 Flash4GBMapStart;
+ EFI_STATUS Status;
+
+ Flash4GBMapStart = 0xFFFFFFFF - (FLASH_BLOCK_SIZE * NUMBER_OF_BLOCKS);
+ Flash4GBMapStart += (pFuncBlock->BlockAddr + 1);
+ if (EFI_ERROR(CheckAddressRange ((UINT8*)Flash4GBMapStart, \
+ pFuncBlock->BlockSize))) return EFI_ACCESS_DENIED;
+ if (EFI_ERROR(CheckAddressRange ((UINT8*)pFuncBlock->BufAddr, \
+ pFuncBlock->BlockSize))) return EFI_ACCESS_DENIED;
+ Status = Flash->Read((UINT8*)Flash4GBMapStart, \
+ pFuncBlock->BlockSize, (UINT8*)pFuncBlock->BufAddr);
+ pFuncBlock->ErrorCode = EFI_ERROR(Status) != 0;
+ return Status;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: WriteFlash
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS WriteFlash(
+ IN OUT FUNC_BLOCK *pFuncBlock
+)
+{
+ EFI_STATUS Status;
+ UINT8 *FlashAddress;
+
+ FlashAddress = (UINT8*)(UINTN)(pFuncBlock->BlockAddr + \
+ (0xFFFFFFFF - SmiFlash.FlashCapacity + 1));
+ if (EFI_ERROR(CheckAddressRange (FlashAddress, \
+ pFuncBlock->BlockSize))) return EFI_ACCESS_DENIED;
+ if (EFI_ERROR(CheckAddressRange ((UINT8*)pFuncBlock->BufAddr, \
+ pFuncBlock->BlockSize))) return EFI_ACCESS_DENIED;
+ Status = Flash->Write(FlashAddress, \
+ pFuncBlock->BlockSize, (UINT8*)pFuncBlock->BufAddr);
+ pFuncBlock->ErrorCode = EFI_ERROR(Status) != 0;
+ return Status;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: SMIFlashSMIHandler
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+EFI_STATUS
+SMIFlashSMIHandler (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *Context OPTIONAL,
+ IN OUT VOID *CommBuffer OPTIONAL,
+ IN OUT UINTN *CommBufferSize OPTIONAL
+)
+#else
+VOID SMIFlashSMIHandler (
+ IN EFI_HANDLE DispatchHandle,
+ IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
+)
+#endif
+{
+ EFI_SMM_CPU_SAVE_STATE *pCpuSaveState = NULL;
+ EFI_STATUS Status = EFI_SUCCESS;
+ UINT8 Data;
+ UINT64 pCommBuff;
+ UINT32 HighBufferAddress = 0;
+ UINT32 LowBufferAddress = 0;
+ UINTN Cpu = (UINTN)-1, i = 0;
+
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+ if (CommBuffer != NULL && CommBufferSize != NULL) {
+ Cpu = ((EFI_SMM_SW_CONTEXT*)CommBuffer)->SwSmiCpuIndex;
+ Data = ((EFI_SMM_SW_CONTEXT*)CommBuffer)->CommandPort;
+ }
+
+ //
+ // Found Invalid CPU number, return
+ //
+ if(Cpu == (UINTN)-1) RETURN(Status);
+
+ Status = gSmmCpu->ReadSaveState ( gSmmCpu, \
+ 4, \
+ EFI_SMM_SAVE_STATE_REGISTER_RBX, \
+ Cpu, \
+ &LowBufferAddress );
+ Status = gSmmCpu->ReadSaveState ( gSmmCpu, \
+ 4, \
+ EFI_SMM_SAVE_STATE_REGISTER_RCX, \
+ Cpu, \
+ &HighBufferAddress );
+#else // PI_SPECIFICATION_VERSION < 0x1000A
+ SW_SMI_CPU_TRIGGER *SwSmiCpuTrigger;
+
+ for (i = 0; i < pSmst->NumberOfTableEntries; ++i) {
+ if (guidcmp(&pSmst->SmmConfigurationTable[i].VendorGuid,
+ &gSwSmiCpuTriggerGuid) == 0) {
+ break;
+ }
+ }
+
+ //If found table, check for the CPU that caused the software Smi.
+ if (i != pSmst->NumberOfTableEntries) {
+ SwSmiCpuTrigger = pSmst->SmmConfigurationTable[i].VendorTable;
+ Cpu = SwSmiCpuTrigger->Cpu;
+ }
+
+ //
+ // Found Invalid CPU number, return
+ //
+ if(Cpu == (UINTN) -1) RETURN(Status);
+
+ Data = (UINT8)DispatchContext->SwSmiInputValue;
+
+ pCpuSaveState = pSmst->CpuSaveState;
+ HighBufferAddress = pCpuSaveState[Cpu].Ia32SaveState.ECX;
+ LowBufferAddress = pCpuSaveState[Cpu].Ia32SaveState.EBX;
+
+#endif
+
+ pCommBuff = HighBufferAddress;
+ pCommBuff = Shl64(pCommBuff, 32);
+ pCommBuff += LowBufferAddress;
+
+ if(Data == SMIFLASH_GET_FLASH_INFO)
+ Status = CheckAddressRange( (UINT8*)pCommBuff, sizeof(INFO_BLOCK) );
+ else
+ Status = CheckAddressRange( (UINT8*)pCommBuff, sizeof(FUNC_BLOCK) );
+ if(EFI_ERROR(Status)) RETURN(Status);
+
+ if (Data != SMIFLASH_GET_FLASH_INFO)
+ ((FUNC_BLOCK*)pCommBuff)->ErrorCode = 0;
+ for (i = 0; SMIFlashPreHandler[i] != NULL; i++)
+ SMIFlashPreHandler[i](Data, pCommBuff);
+ if ((Data == SMIFLASH_GET_FLASH_INFO) || \
+ (((FUNC_BLOCK*)pCommBuff)->ErrorCode == 0)) {
+ switch (Data) {
+ case 0x20: // Enable Flash
+ for (i = 0; SMIFlashPreUpdate[i] != NULL; i++)
+ SMIFlashPreUpdate[i]();
+ EnableFlashWrite((FUNC_BLOCK *)pCommBuff);
+ break;
+
+ case 0x24: // Disable Flash
+ for (i = 0; SMIFlashEndUpdate[i] != NULL; i++)
+ SMIFlashEndUpdate[i]();
+
+ DisableFlashWrite((FUNC_BLOCK *)pCommBuff);
+ break;
+
+ case 0x22: // Erase Flash
+
+ EraseFlash((FUNC_BLOCK *)pCommBuff);
+
+ break;
+
+ case 0x21: // Read Flash
+ ReadFlash((FUNC_BLOCK *)pCommBuff);
+ break;
+
+ case 0x23: // Write Flash
+
+ WriteFlash((FUNC_BLOCK *)pCommBuff);
+ break;
+
+ case 0x25: // Get Flash Info
+ GetFlashInfo((INFO_BLOCK *)pCommBuff);
+ }
+
+ }
+ for (i = 0; SMIFlashEndHandler[i] != NULL; i++)
+ SMIFlashEndHandler[i](Data, pCommBuff);
+ RETURN(Status);
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: InSmmFunction
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS InSmmFunction(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+)
+{
+ EFI_HANDLE Handle;
+ UINTN Index;
+ EFI_HANDLE DummyHandle = NULL;
+ EFI_STATUS Status;
+ SMM_HOB *SmmHob;
+ EFI_GUID SmmHobGuid = SMM_HOB_GUID;
+ EFI_GUID HobListGuid = HOB_LIST_GUID;
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+ EFI_SMM_SW_DISPATCH2_PROTOCOL *pSwDispatch;
+ EFI_SMM_SW_REGISTER_CONTEXT SwContext;
+#else
+ EFI_SMM_SW_DISPATCH_PROTOCOL *pSwDispatch;
+ EFI_SMM_SW_DISPATCH_CONTEXT SwContext;
+#endif
+
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+ Status = InitAmiSmmLib( ImageHandle, SystemTable );
+ Status = pBS->LocateProtocol(&gEfiSmmBase2ProtocolGuid, NULL, &gSmmBase2);
+ if (EFI_ERROR(Status)) return EFI_SUCCESS;
+
+ Status = pSmmBase->GetSmstLocation (gSmmBase2, &pSmst);
+ if (EFI_ERROR(Status)) return EFI_SUCCESS;
+
+ Status = pSmst->SmmLocateProtocol( \
+ &gEfiSmmSwDispatch2ProtocolGuid, NULL, &pSwDispatch);
+ if (EFI_ERROR(Status)) return EFI_SUCCESS;
+
+ Status = pSmst->SmmLocateProtocol(&gEfiSmmCpuProtocolGuid, NULL, &gSmmCpu);
+ if (EFI_ERROR(Status)) return EFI_SUCCESS;
+#else
+ VERIFY_EFI_ERROR(pBS->LocateProtocol(
+ &gEfiSmmSwDispatchProtocolGuid, NULL, &pSwDispatch));
+#endif
+ VERIFY_EFI_ERROR(pBS->LocateProtocol(&gFlashSmmProtocolGuid,
+ NULL, &Flash));
+ TRACE((TRACE_ALWAYS,"SmiFlash: Flash Protocol %X\n",Flash));
+
+ SmmHob = (SMM_HOB*)GetEfiConfigurationTable(pST, &HobListGuid);
+ if (SmmHob == NULL) return EFI_NOT_FOUND;
+ Status = FindNextHobByGuid(&SmmHobGuid,(VOID**)&SmmHob);
+ if (EFI_ERROR(Status)) return Status;
+ gSmmHob = *SmmHob;
+
+ for (Index = 0x20; Index < 0x26; Index++) {
+ SwContext.SwSmiInputValue = Index;
+ Status = pSwDispatch->Register(pSwDispatch, SMIFlashSMIHandler,
+ &SwContext, &Handle);
+ ASSERT_EFI_ERROR(Status);
+
+ if (EFI_ERROR(Status)) return EFI_SUCCESS;
+
+ //TODO: If any errors, unregister any registered SwSMI by this driver.
+ //If error, and driver is unloaded, then a serious problem would exist.
+ }
+
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+ Status = pSmst->SmmInstallProtocolInterface(
+ &DummyHandle,
+ &gEfiSmiFlashProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &SmiFlash
+ );
+#endif
+ // If PI 1.2, install this protocol for backward compatible.
+ DummyHandle = NULL;
+ Status = pBS->InstallMultipleProtocolInterfaces(
+ &DummyHandle,
+ &gEfiSmiFlashProtocolGuid,&SmiFlash,
+ NULL
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ for (Index = 0; SMIFlashInSmm[Index] != NULL; Index++) {
+ SMIFlashInSmm[Index]();
+ }
+ return EFI_SUCCESS;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: NonSmmElinkFunctions
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS
+NonSmmElinkFunctions(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+)
+{
+ UINT8 i;
+
+ for (i = 0; SMIFlashNotInSmm[i] != NULL; i++)
+ SMIFlashNotInSmm[i]();
+
+ return EFI_SUCCESS;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: SMIFlashDriverEntryPoint
+//
+// Description:
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS SMIFlashDriverEntryPoint(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+)
+{
+ InitAmiLib(ImageHandle, SystemTable);
+ return InitSmmHandler (ImageHandle, \
+ SystemTable, InSmmFunction, NonSmmElinkFunctions);
+}
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2009, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
diff --git a/Core/EM/SMIFlash/SMIFlash.chm b/Core/EM/SMIFlash/SMIFlash.chm
new file mode 100644
index 0000000..7235dae
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlash.chm
Binary files differ
diff --git a/Core/EM/SMIFlash/SMIFlash.cif b/Core/EM/SMIFlash/SMIFlash.cif
new file mode 100644
index 0000000..ebed2dc
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlash.cif
@@ -0,0 +1,16 @@
+<component>
+ name = "SMIFlash"
+ category = eModule
+ LocalRoot = "CORE\EM\SMIFlash\"
+ RefName = "SMIFlash"
+[files]
+"SMIFlash.sdl"
+"SMIFlash.mak"
+"SMIFlash.dxs"
+"SMIFlash.c"
+"SMIFlash.chm"
+"SMIFlashLinks.c"
+"SMIFlashDxe.dxs"
+[parts]
+"SMIFlashProtocols"
+<endComponent>
diff --git a/Core/EM/SMIFlash/SMIFlash.dxs b/Core/EM/SMIFlash/SMIFlash.dxs
new file mode 100644
index 0000000..0fbc5ec
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlash.dxs
@@ -0,0 +1,103 @@
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2009, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Modules/SMIFlash/SMIFlash.dxs 7 11/02/12 7:13a Calvinchen $
+//
+// $Revision: 7 $
+//
+// $Date: 11/02/12 7:13a $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/SMIFlash/SMIFlash.dxs $
+//
+// 7 11/02/12 7:13a Calvinchen
+// [TAG] EIP64328
+// [Category] Improvement
+// [Description] Improvement:
+// 1. (EIP64328) Update modules to be compliant with PI 1.2 and UEFI
+// 2.3.1 specifications.
+// BugFix:
+// 1. (EIP100950) Fix the attribute of Win8 Debug Variable been changed
+// after restored.
+// 2. (EIP98199) The #### in Boot#### should be upper case.
+// [Files] SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlashDxe.dxs
+// SMIFlash.cif
+//
+// 6 12/14/10 3:51a Klzhan
+// Remove dependency of USB protocol.
+// USB might be remove in some Mobile when FAST_BOOT is on.
+//
+// 5 4/07/10 1:56a Rameshr
+// USB K/B and USB M/S should be stopped during flashing BIOS.
+// EIP 37130
+//
+// 4 12/21/09 4:41a Klzhan
+//
+// 3 5/22/09 8:19p Felixp
+// SmiFlash module is updated to replace Flash library calls with the
+// calls to new Core 4.6.3.6 Flash Protocol .
+//
+// 2 5/11/07 1:47p Felixp
+//
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: SMIFlash_dxs
+//
+// Description: This file is the dependency file for the SMIFlash driver.
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+
+#include <Token.h>
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+#include <Protocol/SmmBase2.h>
+#include <Protocol/SmmSwDispatch2.h>
+#else
+#include <Protocol/SmmBase.h>
+#include <Protocol/SmmSwDispatch.h>
+#endif
+#include <Protocol/FlashProtocol.h>
+
+DEPENDENCY_START
+#if PI_SPECIFICATION_VERSION >= 0x1000A
+ EFI_SMM_BASE2_PROTOCOL_GUID AND
+ EFI_SMM_SW_DISPATCH2_PROTOCOL_GUID AND
+#else
+ EFI_SMM_BASE_PROTOCOL_GUID AND
+ EFI_SMM_SW_DISPATCH_PROTOCOL_GUID AND
+#endif
+ FLASH_SMM_PROTOCOL_GUID
+DEPENDENCY_END
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (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
diff --git a/Core/EM/SMIFlash/SMIFlash.mak b/Core/EM/SMIFlash/SMIFlash.mak
new file mode 100644
index 0000000..cb840d3
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlash.mak
@@ -0,0 +1,183 @@
+#//**********************************************************************//
+#//**********************************************************************//
+#//** **//
+#//** (C)Copyright 1985-2005, American Megatrends, Inc. **//
+#//** **//
+#//** All Rights Reserved. **//
+#//** **//
+#//** 6145-F Northbelt Pkwy, Norcross, GA 30071 **//
+#//** **//
+#//** Phone: (770)-246-8600 **//
+#//** **//
+#//**********************************************************************//
+#//**********************************************************************//
+
+#************************************************************************//
+# $Header: /Alaska/SOURCE/Modules/SMIFlash/SMIFlash.mak 13 11/02/12 7:13a Calvinchen $
+#
+# $Revision: 13 $
+#
+# $Date: 11/02/12 7:13a $
+#************************************************************************//
+# Revision History
+# ----------------
+# $Log: /Alaska/SOURCE/Modules/SMIFlash/SMIFlash.mak $
+#
+# 13 11/02/12 7:13a Calvinchen
+# [TAG] EIP64328
+# [Category] Improvement
+# [Description] Improvement:
+# 1. (EIP64328) Update modules to be compliant with PI 1.2 and UEFI
+# 2.3.1 specifications.
+# BugFix:
+# 1. (EIP100950) Fix the attribute of Win8 Debug Variable been changed
+# after restored.
+# 2. (EIP98199) The #### in Boot#### should be upper case.
+# [Files] SMIFlash.mak
+# SMIFlash.dxs
+# SMIFlash.c
+# SMIFlash.chm
+# SMIFlashLinks.c
+# SMIFlashDxe.dxs
+# SMIFlash.cif
+#
+# 12 5/29/12 5:45a Klzhan
+# [TAG] EIP86878
+# [Category] Improvement
+# [Description] Restore SMBIOS data when recovery.
+# [Files] SMIFlash.sdl
+# SMIFlash.mak
+# SMIFlash.dxs
+# SMIFlash.c
+# SMIFlash.chm
+# SMIFlashLinks.c
+# SMIFlash.cif
+#
+# 11 5/23/12 3:01a Klzhan
+# [TAG] EIP81706
+# [Category] Improvement
+# [Description] Restore variables when recovery.
+#
+# 10 3/06/12 2:41a Klzhan
+# Improvement :
+# 1. Add non SMM Elinks
+# 2. Search Variables on in-active NVRam.
+#
+# 9 11/23/11 3:39a Calvinchen
+# [TAG] EIP54533
+# [Category] Improvement
+# [Description] 1. Removed BiosLockEnablePatchHook hook. Moved to
+# Chipset file.
+# 2. Also enable/disable PS2 keyboard in Enable/DisableUSBKBD hook.
+# 3. (EIP54533) Request for afu capable updating OEM firmware volumes
+# [Files] SMIFlash.sdl
+# SMIFlash.mak
+# SMIFlash.chm
+# SMIFlashLinks.c
+#
+# 8 3/23/11 4:44a Calvinchen
+# [TAG] EIP53067
+# [Category] Improvement
+# [Description] Modified for OEM Secure BIOS Update Requirements.
+# [Files] SMIFlash.sdl
+# SMIFlash.mak
+# SMIFlash.dxs
+# SMIFlash.c
+# SMIFlash.chm
+# SMIFlashLinks.c
+# SMIFlash.cif
+#
+# 7 6/15/10 3:11a Klzhan
+# Improvement: Add Elink to modify GetFlashInfo.
+#
+# 6 2/02/09 6:42p Fredericko
+#
+# 5 1/29/09 5:36p Fredericko
+# modified build for SMIFLASH_PRE_UPDATE_LIST and
+# SMIFLASH_END_UPDATE_LIST. See EIP 18819
+#
+# 4 8/15/07 7:07p Pats
+# Modified to support preservation of passwords through flashing.
+#
+# 3 12/29/06 3:04p Felixp
+# 1. Updated to use new Flash Interface.
+# 2. Embedded Controller support added.
+#
+# 2 12/02/05 11:48a Felixp
+#
+# 1 4/05/05 3:47p Sivagarn
+# Initial Checkin
+#
+#************************************************************************//
+
+all : SMIFlash
+
+SMIFLASH_BUILD_DIR = $(BUILD_DIR)\$(SMI_FLASH_DIR)
+
+SMIFlash : $(SMIFLASH_BUILD_DIR)\RomLayout.obj $(BUILD_DIR)\SMIFlash.mak SMIFlashBin
+
+SMIFlashObjects =\
+$(SMIFLASH_BUILD_DIR)\SMIFlash.obj\
+$(SMIFLASH_BUILD_DIR)\SMIFlashLinks.obj\
+$(SMIFLASH_BUILD_DIR)\RomLayout.obj\
+$(BUILD_DIR)\$(NVRAM_DIR)\NVRAMRead.obj\
+
+SMIFLASH_LISTS = \
+/D\"PRESERVE_FFS_GUID=$(SMIFlashPreserveRomHoleGuid)\"\
+/D\"SMIFLASH_IN_SMM_LIST=$(SMIFlashInSmmList)\"\
+/D\"SMIFLASH_NOT_IN_SMM_LIST=$(SMIFlashNotSmmList)\"\
+/D\"SMIFLASH_END_UPDATE_LIST=$(SMIFlashEndUpdateList)\"\
+/D\"SMIFLASH_PRE_UPDATE_LIST=$(SMIFlashPreUpdateList)\"\
+/D\"SMIFLASH_PRE_HANDLER_LIST=$(SMIFlashPreHandlerList)\"\
+/D\"SMIFLASH_END_HANDLER_LIST=$(SMIFlashEndHandlerList)\"
+
+$(BUILD_DIR)\SMIFlash.mak : $(SMI_FLASH_DIR)\SMIFlash.cif $(SMI_FLASH_DIR)\$(@B).mak $(BUILD_RULES)
+ $(CIF2MAK) $(SMI_FLASH_DIR)\SMIFlash.cif $(CIF2MAK_DEFAULTS)
+
+SMIFlashBin : $(AMIDXELIB) $(FLASHLIB) $(PRESERVE_LIB)
+ $(MAKE) /$(MAKEFLAGS) $(BUILD_DEFAULTS)\
+ /f $(BUILD_DIR)\SMIFlash.mak all\
+ GUID=BC327DBD-B982-4f55-9F79-056AD7E987C5\
+ OBJECTS="$(SMIFlashObjects)" \
+ ENTRY_POINT=SMIFlashDriverEntryPoint\
+ "EXT_HEADERS=$(BUILD_DIR)\token.h"\
+ "CFLAGS=$(CFLAGS) /DVFRCOMPILE $(SMIFLASH_LISTS)"\
+!IF $(PI_SPECIFICATION_VERSION) >= 0x1000A
+ TYPE=DXESMM_DRIVER\
+ DEPEX1=$(SMI_FLASH_DIR)\SMIFlash.dxs \
+ DEPEX1_TYPE=EFI_SECTION_SMM_DEPEX \
+ DEPEX2=$(SMI_FLASH_DIR)\SMIFlashDxe.dxs \
+ DEPEX2_TYPE=EFI_SECTION_DXE_DEPEX \
+!ELSE
+ TYPE=BS_DRIVER\
+ DEPEX1=$(SMI_FLASH_DIR)\SMIFlash.dxs \
+ DEPEX1_TYPE=EFI_SECTION_DXE_DEPEX \
+!ENDIF
+ COMPRESS=1
+
+$(SMIFLASH_BUILD_DIR)\RomLayout.obj : $(BUILD_DIR)\RomLayout.c
+ $(CC) /Fo$@ $(CFLAGS) $(BUILD_DIR)\RomLayout.c
+
+#---------------------------------------------------------------------------
+# Reflash link file
+#---------------------------------------------------------------------------
+!IF "$(RECOVERY_PRESERVE_VARS_IN_SMM)"=="1"
+ReFlashBin : $(BUILD_DIR)\ReflashHooks.obj
+
+$(BUILD_DIR)\ReflashHooks.obj : $(SMI_FLASH_DIR)\SMIFlashLinks.c
+ $(CC) /Fo$(BUILD_DIR)\ReflashHooks.obj $(CFLAGS) /D_OUTSIDE_SMM_ $(SMI_FLASH_DIR)\SMIFlashLinks.c
+!ENDIF
+
+#//**********************************************************************//
+#//**********************************************************************//
+#//** **//
+#//** (C)Copyright 1985-2005, American Megatrends, Inc. **//
+#//** **//
+#//** All Rights Reserved. **//
+#//** **//
+#//** 6145-F Northbelt Pkwy, Norcross, GA 30071 **//
+#//** **//
+#//** Phone: (770)-246-8600 **//
+#//** **//
+#//**********************************************************************//
+#//**********************************************************************//
diff --git a/Core/EM/SMIFlash/SMIFlash.sdl b/Core/EM/SMIFlash/SMIFlash.sdl
new file mode 100644
index 0000000..7cdc8e2
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlash.sdl
@@ -0,0 +1,349 @@
+TOKEN
+ Name = "SMIFlash_SUPPORT"
+ Value = "1"
+ Help = "Main switch to enable SMIFlash support in Project"
+ TokenType = Boolean
+ TargetMAK = Yes
+ Master = Yes
+End
+
+TOKEN
+ Name = "SMI_FLASH_INTERFACE_VERSION"
+ Value = "11"
+ Help = "Version of the SMI Flash Interface"
+ TokenType = Integer
+ TargetH = Yes
+End
+
+TOKEN
+ Name = "REPORT_NCB_BY_ROM_LAYOUT"
+ Value = "0"
+ Help = "Report NCBs by ROM Layout Definitions."
+ TokenType = Boolean
+ TargetMAK = Yes
+ TargetH = Yes
+End
+
+TOKEN
+ Name = "PRESERVE_PASSWORDS"
+ Value = "0"
+ Help = "1 - Preserve passwords through flashing. 0 - Do not preserve passwords."
+ TokenType = Boolean
+ TargetMAK = Yes
+ TargetH = Yes
+End
+
+TOKEN
+ Name = "PRESERVE_EFIBOOTORDER"
+ Value = "1"
+ Help = "1 - Preserve EFI BootOrder through flashing. 0 - Do not preserve EFI BootOrder."
+ TokenType = Boolean
+ TargetH = Yes
+End
+
+TOKEN
+ Name = "AFU_BUFFER_IN_SHADOW"
+ Value = "0"
+ Help = "1 - AFU will store the buffer pointer in F-segment If Afu support."
+ TokenType = Boolean
+ TargetH = Yes
+End
+
+TOKEN
+ Name = "DISABLE_PWR_BUTTON"
+ Value = "0"
+ Help = "1 - Disable PWR Button when flashing BIOS in DOS."
+ TokenType = Boolean
+ TargetH = Yes
+End
+
+PATH
+ Name = "SMI_FLASH_DIR"
+End
+
+MODULE
+ Help = "Includes SMIFlash.mak to Project"
+ File = "SMIFlash.mak"
+End
+
+ELINK
+ Name = "$(BUILD_DIR)\SMIFlash.ffs"
+ Parent = "FV_MAIN"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "PreserveSetupPassword,"
+ Parent = "SMIFlashPreUpdateList"
+ Token = "PRESERVE_PASSWORDS" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "RestoreSetupPassword,"
+ Parent = "SMIFlashEndUpdateList"
+ Token = "PRESERVE_PASSWORDS" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "PreserveEfiBootOrders,"
+ Parent = "SMIFlashPreUpdateList"
+ Token = "PRESERVE_EFIBOOTORDER" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "RestoreEfiBootOrders,"
+ Parent = "SMIFlashEndUpdateList"
+ Token = "PRESERVE_EFIBOOTORDER" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "DisablePowerButton,"
+ Parent = "SMIFlashPreUpdateList"
+ Token = "DISABLE_PWR_BUTTON" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "EnablePowerButton,"
+ Parent = "SMIFlashEndUpdateList"
+ Token = "DISABLE_PWR_BUTTON" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "DisableUSBKBD,"
+ Parent = "SMIFlashPreUpdateList"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "EnableUSBKBD,"
+ Parent = "SMIFlashEndUpdateList"
+ InvokeOrder = AfterParent
+End
+
+
+ELINK
+ Name = "UpdateShadowBuffer,"
+ Parent = "SMIFlashPreHandlerList"
+ Token = "AFU_BUFFER_IN_SHADOW" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "ClearShadowBuffer,"
+ Parent = "SMIFlashEndHandlerList"
+ Token = "AFU_BUFFER_IN_SHADOW" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "$(BUILD_DIR)\AMICSPLib.Lib"
+ Parent = "PRESERVE_LIB"
+ Token = "AFU_BUFFER_IN_SHADOW" "=" "1"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "ReassignNcbByRomLayout,"
+ Parent = "SMIFlashEndHandlerList"
+ Token = "REPORT_NCB_BY_ROM_LAYOUT" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "PostRestoreVariables,"
+ Parent = "SMIFlashNotSmmList"
+ Token = "FAULT_TOLERANT_NVRAM_UPDATE" "=" "1"
+ Token = "BACKUP_NVRAM_WHEN_FLASH" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "USBNonSmmFunction,"
+ Parent = "SMIFlashNotSmmList"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "USBInSmmFunction,"
+ Parent = "SMIFlashInSmmList"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "SMIFlashInSmmList"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "SMIFlashPreserveRomHoleGuid"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "SMIFlashNotSmmList"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "SMIFlashPreUpdateList"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "SMIFlashEndUpdateList"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "SMIFlashPreHandlerList"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "SMIFlashEndHandlerList"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "PRESERVE_LIB"
+ InvokeOrder = ReplaceParent
+End
+
+ELINK
+ Name = "RestoreSecureVariablesPreHandler,"
+ Parent = "SMIFlashPreHandlerList"
+ Token = "FAULT_TOLERANT_NVRAM_UPDATE" "=" "1"
+ Token = "BACKUP_NVRAM_WHEN_FLASH" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "RestoreSecureVariablesEndHandler,"
+ Parent = "SMIFlashEndHandlerList"
+ Token = "FAULT_TOLERANT_NVRAM_UPDATE" "=" "1"
+ Token = "BACKUP_NVRAM_WHEN_FLASH" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "ClearFFSState,"
+ Parent = "SecureUpdBeforeSmiflashWrite,"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "PreserveWin8Variables,"
+ Parent = "SMIFlashPreUpdateList"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "RestoreWin8Variables,"
+ Parent = "SMIFlashEndUpdateList"
+ InvokeOrder = AfterParent
+End
+
+TOKEN
+ Name = "NON_SECURE_NCB_UPDATE"
+ Value = "0"
+ Help = "1 - Allow NCB Update w/o Secure check."
+ TokenType = Boolean
+ TargetH = Yes
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+End
+
+ELINK
+ Name = "NCBUpdate,"
+ Parent = "SecureUpdBeforeSmiflashWrite,"
+ Token = "NON_SECURE_NCB_UPDATE" "=" "1"
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+ InvokeOrder = BeforeParent
+End
+
+ELINK
+ Name = "NCBUpdate,"
+ Parent = "SecureUpdBeforeSmiflashWrite,"
+ Token = "NON_SECURE_NCB_UPDATE" "=" "1"
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+TOKEN
+ Name = "RECOVERY_PRESERVE_VARS_IN_SMM"
+ Value = "1"
+ Help = "1 - Preserved variables thru SMIFlash Func 0x20/0x24 if Capsule/Recovery mode of Secure Flash."
+ TokenType = Boolean
+ TargetMAK = Yes
+ TargetH = Yes
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+End
+
+TOKEN
+ Name = "RECOVERY_PRESERVE_ROMHOLE"
+ Value = "1"
+ Help = "1 - Preserved Romholes if Capsule/Recovery mode of Secure Flash."
+ TokenType = Boolean
+ TargetH = Yes
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+End
+
+ELINK
+ Name = "RecoveryPreserveRomHoles,"
+ Parent = "SMIFlashNotSmmList"
+ Token = "RECOVERY_PRESERVE_ROMHOLE" "=" "1"
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "RecoveryHookBeforeFlash,"
+ Parent = "OemBeforeFlashUpdateList"
+ Token = "RECOVERY_PRESERVE_VARS_IN_SMM" "=" "1"
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "RecoveryHookAfterFlash,"
+ Parent = "OemAfterFlashUpdateList"
+ Token = "RECOVERY_PRESERVE_VARS_IN_SMM" "=" "1"
+ Token = "SecSMIFlash_SUPPORT" "=" "1"
+ InvokeOrder = AfterParent
+End
+
+ELINK
+ Name = "{0xFD44820B,0xF1AB,0x41c0,0xAE,0x4E,0x0C,0x55,0x55,0x6E,0xB9,0xBD},"
+ Parent = "SMIFlashPreserveRomHoleGuid"
+ InvokeOrder = AfterParent
+End
+
+TOKEN
+ Name = "BACKUP_NVRAM_WHEN_FLASH"
+ Value = "0"
+ Help = "1 - Keep Current NVRAM, update new NVRAM to another NVRAM Region."
+ TokenType = Boolean
+ TargetH = Yes
+ Token = "FAULT_TOLERANT_NVRAM_UPDATE" "=" "1"
+End
+
+ELINK
+ Name = "CheckNVRAMArea,"
+ Parent = "SMIFlashPreUpdateList"
+ Token = "FAULT_TOLERANT_NVRAM_UPDATE" "=" "1"
+ Token = "BACKUP_NVRAM_WHEN_FLASH" "=" "0"
+ InvokeOrder = BeforeParent
+End
+
+ELINK
+ Name = "UpdateNVRAMArea,"
+ Parent = "SMIFlashEndUpdateList"
+ Token = "FAULT_TOLERANT_NVRAM_UPDATE" "=" "1"
+ Token = "BACKUP_NVRAM_WHEN_FLASH" "=" "0"
+ InvokeOrder = BeforeParent
+End
diff --git a/Core/EM/SMIFlash/SMIFlashDxe.dxs b/Core/EM/SMIFlash/SMIFlashDxe.dxs
new file mode 100644
index 0000000..09c5a47
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlashDxe.dxs
@@ -0,0 +1,72 @@
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2009, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Modules/SMIFlash/SMIFlashDxe.dxs 2 11/02/12 7:14a Calvinchen $
+//
+// $Revision: 2 $
+//
+// $Date: 11/02/12 7:14a $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/SMIFlash/SMIFlashDxe.dxs $
+//
+// 2 11/02/12 7:14a Calvinchen
+// [TAG] EIP64328
+// [Category] Improvement
+// [Description] Improvement:
+// 1. (EIP64328) Update modules to be compliant with PI 1.2 and UEFI
+// 2.3.1 specifications.
+// BugFix:
+// 1. (EIP100950) Fix the attribute of Win8 Debug Variable been changed
+// after restored.
+// 2. (EIP98199) The #### in Boot#### should be upper case.
+// [Files] SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlashDxe.dxs
+// SMIFlash.cif
+//
+//
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: SMIFlashDxe.dxs
+//
+// Description: This file is the dependency file for the SMIFlash driver.
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+#include <Protocol/FlashProtocol.h>
+
+DEPENDENCY_START
+ FLASH_PROTOCOL_GUID
+DEPENDENCY_END
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (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
diff --git a/Core/EM/SMIFlash/SMIFlashLinks.c b/Core/EM/SMIFlash/SMIFlashLinks.c
new file mode 100644
index 0000000..88e3155
--- /dev/null
+++ b/Core/EM/SMIFlash/SMIFlashLinks.c
@@ -0,0 +1,2227 @@
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2011, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Modules/SMIFlash/SMIFlashLinks.c 52 4/11/16 9:22p Tristinchou $
+//
+// $Revision: 52 $
+//
+// $Date: 4/11/16 9:22p $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/SMIFlash/SMIFlashLinks.c $
+//
+// 52 4/11/16 9:22p Tristinchou
+// [TAG] EIP261702
+// [Category] Improvement
+// [Description] Register event to get UsbRtKbcAccessControl() function
+// to disable keyboard
+//
+// 51 4/07/15 2:52a Tristinchou
+// [TAG] EIP211721
+// [Category] Improvement
+// [Description] Modify codes to call UsbRtKbcAccessControl() instead of
+// using outside smm pointer.
+//
+// 50 5/06/14 5:01a Calvinchen
+// [TAG] EIP166597
+// [Category] New Feature
+// [Description] Removing RT from variables could cause problems
+// accessing variables if PRESERVE_EFIBOOTORDER=1
+// [Files] SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlash.cif
+//
+// 49 3/10/14 2:44a Calvinchen
+// [TAG] EIP156780
+// [Category] Improvement
+// [Description] Boot related variables preserving in Aptio 4 SmiFlash
+//
+// 48 12/06/13 4:20a Calvinchen
+// [TAG] EIP145305
+// [Category] Bug Fix
+// [Severity] Important
+// [Symptom] Variable Restored failed after re-flashing when Nvram is in
+// Backup Area.
+// [RootCause] NVRAM State is not restored after re-flashing.
+// [Solution] Restore Nvram State.
+// [Files] SMIFlash.sdl
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlash.cif
+//
+// 47 12/20/12 8:52a Calvinchen
+// [TAG] EIP103562
+// [Category] Improvement
+// [Description] Need a way to preserve debug policy NV+BS variable(
+// WIN8 Logo requirement) in Nvram driver
+// [Files] SMIFlashLinks.c
+//
+// 46 12/06/12 4:56a Calvinchen
+// [TAG] EIP106623
+// [Category] Bug Fix
+// [Severity] Minor
+// [Symptom] SmiFlash breaks build when NVRAM_BACKUP_ADDRESS is not
+// defined.
+// [RootCause] Smiflash don't remove the related procedures if
+// FAULT_TOLERANT_NVRAM_UPDATE is disabled.
+// [Solution] Remove the related procedures if
+// FAULT_TOLERANT_NVRAM_UPDATE is disabled.
+// [Files] SMIFlashLinks.c
+//
+// 45 11/20/12 5:39a Calvinchen
+// [TAG] EIP106623
+// [Category] Bug Fix
+// [Severity] Normal
+// [Symptom] SmiFlash breaks build when FAULT_TOLERANT_NVRAM_UPDATE is
+// disabled
+// [RootCause] Smiflash don't remove the related procedures if
+// FAULT_TOLERANT_NVRAM_UPDATE is disabled.
+// [Solution] Remove the related procedures if
+// FAULT_TOLERANT_NVRAM_UPDATE is disabled.
+// [Files] SMIFlashLinks.c
+//
+// 44 11/19/12 3:48a Calvinchen
+// SmiFlash does not compile when CryptoPkg/Secure Boot Pkg/Secure Flash
+// Pkg are not in the project.
+//
+// 43 11/02/12 7:13a Calvinchen
+// [TAG] EIP64328
+// [Category] Improvement
+// [Description] Improvement:
+// 1. (EIP64328) Update modules to be compliant with PI 1.2 and UEFI
+// 2.3.1 specifications.
+// BugFix:
+// 1. (EIP100950) Fix the attribute of Win8 Debug Variable been changed
+// after restored.
+// 2. (EIP98199) The #### in Boot#### should be upper case.
+// [Files] SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlashDxe.dxs
+// SMIFlash.cif
+//
+// 41 7/13/12 2:14a Klzhan
+// Fix : Backup Flag not clear property.
+//
+// 4 7/02/12 3:45a Nerofan
+// Update to version 36
+//
+// 36 6/13/12 5:17a Klzhan
+// [TAG] EIP92023
+// [Category] Improvement
+// [Description] Emulation SMI should be disabled before Read/Write
+// 60/64 ports in smiflash.
+//
+// 35 6/01/12 5:13a Klzhan
+// Fix sometimes Deadloop when GetNextVariableName
+//
+// 34 5/31/12 2:22a Klzhan
+// Correct pointers.
+//
+// 33 5/30/12 4:19a Klzhan
+// Remove un-used GUID.
+//
+// 32 5/29/12 5:45a Klzhan
+// [TAG] EIP86878
+// [Category] Improvement
+// [Description] Restore SMBIOS data when recovery.
+// [Files] SMIFlash.sdl
+// SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlash.cif
+//
+// 31 5/25/12 6:26a Klzhan
+// [TAG] EIP90325
+// [Category] Improvement
+// [Description] UEFI Compliant - Global Defined Variables test
+//
+// 30 5/24/12 11:57p Klzhan
+// Fix exception error after flash NVRAM.
+//
+// 29 5/23/12 2:58a Klzhan
+// [TAG] EIP81706
+// [Category] Improvement
+// [Description] Restore variables when recovery.
+//
+// 28 5/22/12 4:43a Klzhan
+// [TAG] EIP90325
+// [Category] Improvement
+// [Description] Fix : UEFI Compliant - Globally Defined Variables test
+// fail
+//
+// 27 5/22/12 3:09a Klzhan
+// [TAG] EIP87892
+// [Category] Improvement
+// [Description] As Windows Logo requirment, need support to preserve
+// all UEFI variables with VendorGuid {77fa9abd-0359-4d32-bd60-
+// 28f4e78f784b} between flash updates
+//
+// 26 5/22/12 3:00a Klzhan
+// Set secure variables with authenticated Attributes.
+//
+// 25 5/21/12 4:48a Klzhan
+// Improvement : POST resetore only been called after AFU update.
+//
+// 24 4/05/12 4:40a Klzhan
+// BugFix : AFU will stop when SecureFlash is enabled.
+//
+// 23 3/27/12 11:19p Klzhan
+// [TAG] EIP86161
+// [Category] Bug Fix
+// [Severity] Minor
+// [Symptom] Build Error when X64_BUILD = 0
+//
+// 22 3/14/12 6:59a Klzhan
+// Remove un-use code
+//
+// 21 3/09/12 1:02a Klzhan
+// Fix variables not been restored property.
+//
+// 20 3/06/12 3:01a Klzhan
+// Improvement :
+// Support restore secure variables in POST.
+//
+// 19 2/10/12 7:14a Klzhan
+// Support NCB blocks updated with secure flash updated.
+//
+// 18 2/07/12 3:05a Klzhan
+// BugFIx : Fix erase size not correct.
+//
+// 17 2/06/12 3:27a Klzhan
+// [TAG] EIP80781
+// [Category] Improvement
+// [Description] Support OA key in NCB updated when Scure Flash Enabled
+//
+// 15 11/23/11 3:39a Calvinchen
+// [TAG] EIP54533
+// [Category] Improvement
+// [Description] 1. Removed BiosLockEnablePatchHook hook. Moved to
+// Chipset file.
+// 2. Also enable/disable PS2 keyboard in Enable/DisableUSBKBD hook.
+// 3. (EIP54533) Request for afu capable updating OEM firmware volumes
+// [Files] SMIFlash.sdl
+// SMIFlash.mak
+// SMIFlash.chm
+// SMIFlashLinks.c
+//
+// 14 11/03/11 7:09a Klzhan
+// [TAG] EIP73027
+// [Category] Improvement
+// [Description] Avoid un-inital variable used.
+//
+// 13 10/31/11 11:07p Klzhan
+// [TAG] EIP73017
+// [Category] Improvement
+// [Description] SavedBootXXX, conditionally not set.
+//
+// 12 5/18/11 6:03a Klzhan
+// BugFix : Memory will be crashed, free memory property.
+//
+// 11 5/17/11 3:23a Klzhan
+// Add Elinks to read buffer form shadow.
+//
+// 10 5/16/11 4:03a Klzhan
+// [TAG] EIP35562
+// [Category] Improvement
+// [Description] Boot#### variable,the #### should be upper case of A-F.
+// [Files] SMIFlahElinks.c
+//
+// 9 5/05/11 3:05a Klzhan
+//
+// 8 4/26/11 6:07a Calvinchen
+// [TAG] EIP58402
+// [Category] Bug Fix
+// [Severity] Normal
+// [Symptom] AFUxxx flash utility hangs when Bootxxxx variable size is
+// greater than 0x200
+// [RootCause] The size of Boot0003 variable in the customer's project
+// is 0x242 bytes, which causes the memory corruption.
+// [Solution] Used allocate smm buffer instead of static structure.
+// [Files] SMIFlashLinks.c
+//
+// 6 3/23/11 4:44a Calvinchen
+// [TAG] EIP53067
+// [Category] Improvement
+// [Description] Modified for OEM Secure BIOS Update Requirements.
+// [Files] SMIFlash.sdl
+// SMIFlash.mak
+// SMIFlash.dxs
+// SMIFlash.c
+// SMIFlash.chm
+// SMIFlashLinks.c
+// SMIFlash.cif
+//
+// 5 12/14/10 4:38a Klzhan
+// [TAG] EIP49217
+// [Category] Improvement
+// [Description] Preserve BOOTxxxx for all EFI OS.
+// [Files] SMIFlashLinks.c
+//
+// 4 12/14/10 4:18a Klzhan
+// Move Locate USB Protocol to SMIFlashLinks.c.
+//
+// 3 12/14/10 3:49a Klzhan
+// Improvement : check is ROM layout changed before update NVRAM.
+//
+// 2 12/14/10 1:18a Klzhan
+// Remove debug codes.
+//
+// 1 12/14/10 1:15a Klzhan
+// Improvement : Move ELinks to SMIFlashLinks.c.
+//
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: SMIFlashLinks.c
+//
+// Description: Elinks to SMIFlash.
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+#include <AmiDxeLib.h>
+#include <Token.h>
+#include <Protocol\SmiFlash.h>
+#include <Setup.h>
+#include <Protocol\FlashProtocol.h>
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+#include <Protocol\AmiUsbController.h>
+#endif
+#endif
+
+#include <RomLayout.h>
+#include <Flash.h>
+#include <AmiHobs.h>
+#include <Core\EM\NVRAM\NVRam.h>
+#include <ImageAuthentication.h>
+#include <Protocol\FlashProtocol.h>
+#include "timestamp.h"
+//----------------------------------------------------------------------
+// component MACROs
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_GUID gEfiCertTypePkcs7Guid = EFI_CERT_TYPE_PKCS7_GUID;
+
+//----------------------------------------------------------------------
+// Module defined global variables
+extern FLASH_PROTOCOL *Flash;
+//*********** INSIDE SMM ***********************************************
+#if !defined _OUTSIDE_SMM_
+
+extern ROM_AREA RomLayout[];
+extern VOID ChipsetFlashDeviceWriteEnable();
+
+EFI_GUID RecoveryPreserveGUID[] =
+{
+ { 0x05ca01fc, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca01fd, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca01fe, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca01ff, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0200, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0201, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0202, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0203, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0204, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0205, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0206, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0207, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0208, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca0209, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca020a, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ { 0x05ca020b, 0x0fc1, 0x11dc, 0x90, 0x11, 0x00, 0x17, 0x31, 0x53, 0xeb, 0xa8 },
+ PRESERVE_FFS_GUID
+ {NULL}
+};
+
+//----------------------------------------------------------------------
+// Module specific global variable
+#define ROM_LAYOUT_FFS_GUID \
+ { 0x0DCA793A, 0xEA96, 0x42d8, 0xBD, 0x7B, 0xDC, 0x7F, 0x68, 0x4E, 0x38, 0xC1 }
+#define AMITSESETUP_GUID \
+ { 0xc811fa38, 0x42c8, 0x4579, 0xa9, 0xbb, 0x60, 0xe9, 0x4e, 0xdd, 0xfb, 0x34 }
+#define WIN8_GUID \
+ { 0x77FA9ABD, 0x0359, 0x4D32, 0xBD, 0x60, 0x28, 0xF4, 0xE7, 0x8F, 0x78, 0x4B }
+EFI_GUID gWin8Guid = WIN8_GUID;
+#define DefaultVariableSize 100
+
+EFI_GUID gAmiTseSetupGuid = AMITSESETUP_GUID;
+AMITSESETUP gAmiTseData;
+UINT32 gAmiTseDataAttr = 0;
+
+#pragma pack(1)
+typedef struct {
+ CHAR16 BootVarName[0x20];
+ UINT16 BootOrderNO;
+ UINTN BootXXXXSize;
+//- UINT8 *BootXXXX;
+} RESTORE_BOOTORDER;
+EFI_PHYSICAL_ADDRESS gSmmBootOrder = NULL;
+UINT8 gNumBootDevice = 0;
+#define RESTORE_BOOT_ORDER_BUFFER 0x4000
+#define BOOT_ORDER_OFFSET (RESTORE_BOOT_ORDER_BUFFER - 0x100)
+#define LEGACY_BOOT_ORDER_OFFSET (RESTORE_BOOT_ORDER_BUFFER - 0x200)
+
+typedef struct {
+ CHAR16 *BootVarName;
+ EFI_GUID *Guid;
+} RESTORE_VARIABLES;
+
+typedef struct {
+ UINT32 Attrib;
+ UINTN Size;
+ UINT8* Data;
+} RESTORE_ATTR;
+
+typedef struct {
+ RESTORE_VARIABLES rVar;
+ RESTORE_ATTR rATTR;
+ UINTN NextData;
+} RESTORE_VAR;
+#pragma pack()
+RESTORE_VAR *RestoreVarList;
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+EFI_KBC_ACCESS_CONTROL gUsbRtKbcAccessControl = NULL;
+#endif
+#endif
+
+#define EFI_IMAGE_SECURITY_DATABASE L"db"
+#define EFI_IMAGE_SECURITY_DATABASE1 L"dbx"
+#define EFI_PLATFORM_KEY_NAME L"PK"
+#define EFI_KEY_EXCHANGE_KEY_NAME L"KEK"
+
+EFI_GUID PKeyFileGuid = EFI_GLOBAL_VARIABLE;
+EFI_GUID KekFileGuid = EFI_GLOBAL_VARIABLE;
+EFI_GUID DbFileGuid = EFI_IMAGE_SECURITY_DATABASE_GUID;
+EFI_GUID DbxFileGuid = EFI_IMAGE_SECURITY_DATABASE_GUID;
+
+//-VOID CheckNVRAMArea(VOID);
+EFI_FFS_FILE_STATE NvramFFSState;
+EFI_FFS_FILE_STATE *NvramFFSStatePtr;
+
+RESTORE_VARIABLES RestoreVariables[] = {
+{EFI_IMAGE_SECURITY_DATABASE1, &DbxFileGuid},
+{EFI_IMAGE_SECURITY_DATABASE, &DbFileGuid},
+{EFI_KEY_EXCHANGE_KEY_NAME, &KekFileGuid},
+{EFI_PLATFORM_KEY_NAME, &PKeyFileGuid},
+{NULL,NULL}
+};
+
+#define NUM_OF_RESTORE_VARS (sizeof(RestoreVariables)/sizeof(RESTORE_VARIABLES))
+
+#ifndef EFI_VARIABLE_AUTHENTICATION_2
+typedef struct {
+ EFI_TIME TimeStamp;
+ WIN_CERTIFICATE_UEFI_GUID AuthInfo;
+} EFI_VARIABLE_AUTHENTICATION_2;
+#endif
+
+static EFI_TIME EfiTimeStamp = {
+ FOUR_DIGIT_YEAR_INT,
+ TWO_DIGIT_MONTH_INT,
+ TWO_DIGIT_DAY_INT,
+ TWO_DIGIT_HOUR_INT,
+ TWO_DIGIT_MINUTE_INT,
+ TWO_DIGIT_SECOND_INT,0,0,0,0,0};
+
+RESTORE_ATTR RestoreAttr[NUM_OF_RESTORE_VARS - 1];
+
+// SMM Nvram Control Protocol Definitions
+typedef EFI_STATUS (*SHOW_BOOT_TIME_VARIABLES)(BOOLEAN Show);
+typedef struct{
+ SHOW_BOOT_TIME_VARIABLES ShowBootTimeVariables;
+} AMI_NVRAM_CONTROL_PROTOCOL;
+
+AMI_NVRAM_CONTROL_PROTOCOL *LocateNvramControlSmmProtocol(){
+ static EFI_GUID gAmiNvramControlProtocolGuid = { 0xf7ca7568, 0x5a09, 0x4d2c, { 0x8a, 0x9b, 0x75, 0x84, 0x68, 0x59, 0x2a, 0xe2 } };
+ return GetSmstConfigurationTable(&gAmiNvramControlProtocolGuid);
+}
+AMI_NVRAM_CONTROL_PROTOCOL *gNvramControl = NULL;
+//----------------------------------------------------------------------
+// externally defined variables
+//----------------------------------------------------------------------
+// Function definitions
+// BIT00 = 1 --> Update NVRAM
+// BIT01 = 1 --> Update NVRAM Backup Address
+UINT8 UpdateNVram = 0;
+UINT64 BufAddr;
+UINT8 FFSState;
+#if FAULT_TOLERANT_NVRAM_UPDATE
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: MoveNVRamToAnotherRegion
+//
+// Description: Copy current NVRAM to another NBRAM region
+//
+//
+// Input: Data - SW SMI value number
+// pInfoBlock - AFU Data Buffer
+//
+// Output: None
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+MoveNVRamToAnotherRegion
+(
+ VOID
+)
+{
+ // Move NVRam to another Region
+ // We can keep secure variables
+ EFI_STATUS Status;
+ UINT32 UpdateAddress, SourceAddress, i, Buffer32;
+ UINTN NumberOfPages;
+ EFI_PHYSICAL_ADDRESS Phy_Address;
+ UINT8* Buffer;
+
+ if(UpdateNVram & BIT00)
+ {
+ UpdateAddress = NVRAM_BACKUP_ADDRESS;
+ SourceAddress = NVRAM_ADDRESS;
+ }
+ else
+ {
+ UpdateAddress = NVRAM_ADDRESS;
+ SourceAddress = NVRAM_BACKUP_ADDRESS;
+ }
+ NumberOfPages = ((NVRAM_SIZE) >> 12);
+ Status = pSmst->SmmAllocatePages(AllocateAnyPages,
+ EfiRuntimeServicesData, NumberOfPages, &Phy_Address);
+
+ Flash->Erase((UINT8*)UpdateAddress, NVRAM_SIZE);
+ if(!EFI_ERROR(Status))
+ {
+ Buffer = (UINT8*)Phy_Address;
+ Flash->Read(
+ (UINT8*)(SourceAddress), NVRAM_SIZE, Buffer);
+
+ Flash->Write(
+ (UINT8*)(UpdateAddress), NVRAM_SIZE, Buffer);
+
+ pSmst->SmmFreePages(Phy_Address, NumberOfPages);
+ }else
+ {
+ // If no memory , just do it 4 bytes one time.
+ for(i = 0; i < NVRAM_SIZE ; i += sizeof(UINT32))
+ {
+ Flash->Read(
+ (UINT8*)(SourceAddress + i), sizeof(UINT32), &Buffer32);
+ if(Buffer32 == 0xFFFFFFFF)
+ continue;
+ Flash->Write(
+ (UINT8*)(UpdateAddress + i), sizeof(UINT32), &Buffer32);
+ }
+ }
+
+}
+#endif // #if FAULT_TOLERANT_NVRAM_UPDATE
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: ClearFFSState
+//
+// Description: Clear FFS State of Buffer
+//
+//
+// Input: Data - SW SMI value number
+// pInfoBlock - AFU Data Buffer
+//
+// Output: None
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID ClearFFSState(
+ UINT8 Data,
+ UINT64 pInfoBlock
+)
+{
+ FUNC_BLOCK *pFuncBuff = (FUNC_BLOCK*)pInfoBlock;
+ UINT32 FlashAddress;
+
+ FlashAddress = (pFuncBuff->BlockAddr + (0xFFFFFFFF - FLASH_SIZE + 1));
+ // Runs in Main Address, clear FFSState
+ // if power-off while update, system runs in Backup address
+ if((Data == SMIFLASH_WRITE_FLASH) && (FlashAddress == NVRAM_ADDRESS))
+ {
+ BufAddr = pFuncBuff->BufAddr;
+ FFSState = *(UINT8*)(pFuncBuff->BufAddr + 0x5F);
+ *(UINT8*)(pFuncBuff->BufAddr + 0x5F) = 0xFF;
+ }
+}
+#if FAULT_TOLERANT_NVRAM_UPDATE
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: RestoreSecureVariablesPreHandler
+//
+// Description: Clear and Set FFS state when NVRAM region updated
+//
+//
+// Input: Data - SW SMI value number
+// pInfoBlock - AFU Data Buffer
+//
+// Output: None
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RestoreSecureVariablesPreHandler(
+ UINT8 Data,
+ UINT64 pInfoBlock
+)
+{
+ FUNC_BLOCK *pFuncBuff = (FUNC_BLOCK*)pInfoBlock;
+ UINT32 FlashAddress;
+ static BOOLEAN InitDone = FALSE, RunInMain = FALSE;
+
+ if((Data != SMIFLASH_ERASE_FLASH) &&
+ (Data != SMIFLASH_WRITE_FLASH) &&
+ (Data != SMIFLASH_READ_FLASH))
+ return;
+
+ FlashAddress = (pFuncBuff->BlockAddr + (0xFFFFFFFF - FLASH_SIZE + 1));
+ if((FlashAddress < NVRAM_ADDRESS) ||
+ (FlashAddress >= NVRAM_ADDRESS + NVRAM_SIZE))
+ return;
+
+ if(!InitDone)
+ {
+ NVRAM_STORE_INFO MainNvram;
+ BOOLEAN BackupStoreValid;
+ VOID *BackupNvramAddress = (VOID*)NVRAM_BACKUP_ADDRESS;
+
+
+ MainNvram.NvramAddress = (UINT8*)NVRAM_ADDRESS;
+ MainNvram.NvramSize = NVRAM_SIZE;
+ if (!IsMainNvramStoreValid(&MainNvram, BackupNvramAddress,&BackupStoreValid)){
+ if (BackupStoreValid)
+ RunInMain = FALSE;
+ }else
+ RunInMain = TRUE;
+
+ InitDone = TRUE;
+ }
+
+ // NVRam runs in NVRAM address
+ if(RunInMain)
+ {
+ UpdateNVram |= BIT00;
+ }else
+ {
+ if(NVRAM_ADDRESS > NVRAM_BACKUP_ADDRESS)
+ pFuncBuff->BlockAddr -= (NVRAM_ADDRESS - NVRAM_BACKUP_ADDRESS);
+ else
+ pFuncBuff->BlockAddr += (NVRAM_BACKUP_ADDRESS - NVRAM_ADDRESS);
+
+ UpdateNVram |= BIT01;
+ }
+
+ // Frist in, move current NVRam to another
+ if((Data == SMIFLASH_ERASE_FLASH) && (FlashAddress == NVRAM_ADDRESS))
+ MoveNVRamToAnotherRegion();
+
+ // Runs in Main Address, clear FFSState
+ // if power-off while update, system runs in Backup address
+ if((Data == SMIFLASH_WRITE_FLASH) && (FlashAddress == NVRAM_ADDRESS))
+ *(UINT8*)(pFuncBuff->BufAddr + 0x5F) = 0xFF;
+
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: RestoreSecureVariablesEndHandler
+//
+// Description: Clear and Set FFS state when NVRAM region updated
+//
+//
+// Input: Data - SW SMI value number
+// pInfoBlock - AFU Data Buffer
+//
+// Output: None
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RestoreSecureVariablesEndHandler(
+ UINT8 Data,
+ UINT64 pInfoBlock
+)
+{
+ FUNC_BLOCK *pFuncBuff = (FUNC_BLOCK*)pInfoBlock;
+ UINT32 FlashAddress, EndNVRamAddress, TempNVRamAddress;
+ UINT8 Buffer8 = 0x08;
+
+ if(Data != SMIFLASH_WRITE_FLASH)
+ return;
+
+ switch(UpdateNVram)
+ {
+ case 1:
+ EndNVRamAddress = NVRAM_ADDRESS + NVRAM_SIZE;
+ TempNVRamAddress = NVRAM_BACKUP_ADDRESS;
+ break;
+ case 2:
+ EndNVRamAddress = NVRAM_BACKUP_ADDRESS + NVRAM_SIZE;
+ TempNVRamAddress = NVRAM_ADDRESS;
+ break;
+ default:
+ return;
+ }
+
+ FlashAddress = (pFuncBuff->BlockAddr + (0xFFFFFFFF - FLASH_SIZE + 1));
+ if(FlashAddress == NVRAM_ADDRESS)
+ *(UINT8*)(BufAddr + 0x5F) = FFSState;
+
+ if((FlashAddress + pFuncBuff->BlockSize) != EndNVRamAddress)
+ return;
+
+ // Clear State
+ Flash->Write((UINT8*)(TempNVRamAddress + 0x5F),
+ sizeof(UINT8), &Buffer8);
+
+ Buffer8 = 0xF8;
+ // Set State
+ Flash->Write((UINT8*)(EndNVRamAddress - NVRAM_SIZE + 0x5F),
+ sizeof(UINT8), &Buffer8);
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: PostRestoreVariables
+//
+// Description: Find Variables want to restore and restore then
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+PostRestoreVariables(
+ VOID
+)
+{
+ NVRAM_STORE_INFO pInfo;
+ UINTN HeaderSize = 0x60, i;
+ UINT8 Flags = NVRAM_STORE_FLAG_NON_VALATILE;
+ EFI_STATUS Status;
+ NVRAM_STORE_INFO MainNvram;
+ BOOLEAN BackupStoreValid, RunInMain, ClearFlag = FALSE;
+ VOID *BackupNvramAddress = (VOID*)NVRAM_BACKUP_ADDRESS;
+ UINT8 Buffer8 = 0x08;
+ EFI_VARIABLE_AUTHENTICATION_2 *AuthHdr2;
+ UINTN VarSize;
+
+ for(i = 0 ; i < (NUM_OF_RESTORE_VARS - 1) ; i ++)
+ {
+ RestoreAttr[i].Size = 0;
+ Status = pRS->GetVariable(RestoreVariables[i].BootVarName,
+ RestoreVariables[i].Guid,
+ &RestoreAttr[i].Attrib,
+ &RestoreAttr[i].Size,
+ NULL);
+ // EFI_BUFFER_TOO_SMALL means variable exists
+ if(Status != EFI_BUFFER_TOO_SMALL)
+ break;
+ }
+
+ // All secure variable exist, return
+ if(i == (NUM_OF_RESTORE_VARS - 1))
+ ClearFlag = TRUE;
+
+
+ VERIFY_EFI_ERROR(pBS->LocateProtocol(&gFlashProtocolGuid,
+ NULL, &Flash));
+ // Check current running region
+ MainNvram.NvramAddress = (UINT8*)NVRAM_ADDRESS;
+ MainNvram.NvramSize = NVRAM_SIZE;
+ if (!IsMainNvramStoreValid(&MainNvram, BackupNvramAddress,&BackupStoreValid)){
+ if (BackupStoreValid)
+ RunInMain = FALSE;
+ }else
+ RunInMain = TRUE;
+
+ if(RunInMain)
+ {
+
+ pInfo.NvramAddress = (UINT8*)NVRAM_BACKUP_ADDRESS;
+ // NVRAM update successful, but variables not restored yet.
+ if(*(pInfo.NvramAddress + 0x5F) == 0xF8)
+ {
+ Flash->DeviceWriteEnable();
+ Flash->Write((UINT8*)(pInfo.NvramAddress + 0x5F),
+ sizeof(UINT8), &Buffer8);
+ Flash->DeviceWriteDisable();
+ }
+ }
+ else
+ pInfo.NvramAddress = (UINT8*)NVRAM_ADDRESS;
+
+ // FFS State is 8 mneas AFU update NVRAM but variables not been restored
+ if(*(pInfo.NvramAddress + 0x5F) != 0x08)
+ return;
+
+ pInfo.NvramSize = NVRAM_SIZE;
+ NvInitInfoBuffer(&pInfo, HeaderSize, Flags);
+
+ for( ; i < (NUM_OF_RESTORE_VARS - 1) && !ClearFlag ; i ++)
+ {
+
+ RestoreAttr[i].Size = 0;
+ Status = NvGetVariable2(RestoreVariables[i].BootVarName,
+ RestoreVariables[i].Guid,
+ &RestoreAttr[i].Attrib,
+ &RestoreAttr[i].Size,
+ NULL,
+ 1,
+ &pInfo);
+
+ // It should be happened on frist few boots
+ if(Status == EFI_BUFFER_TOO_SMALL)
+ {
+ UINT8* DataBuffer = NULL;
+
+ VarSize = RestoreAttr[i].Size + sizeof(EFI_VARIABLE_AUTHENTICATION_2);
+
+ Status = pBS->AllocatePool (EfiBootServicesData,
+ VarSize,
+ (VOID**)&DataBuffer);
+
+ Status = NvGetVariable2(RestoreVariables[i].BootVarName,
+ RestoreVariables[i].Guid,
+ &RestoreAttr[i].Attrib,
+ &RestoreAttr[i].Size,
+ DataBuffer + sizeof(EFI_VARIABLE_AUTHENTICATION_2),
+ 1,
+ &pInfo);
+
+ AuthHdr2 = (EFI_VARIABLE_AUTHENTICATION_2*)DataBuffer;
+ MemCpy (&AuthHdr2->TimeStamp, &EfiTimeStamp, sizeof (EFI_TIME));
+ AuthHdr2->AuthInfo.Hdr.dwLength = sizeof(WIN_CERTIFICATE_UEFI_GUID);
+ AuthHdr2->AuthInfo.Hdr.wRevision = 0x200;
+ AuthHdr2->AuthInfo.Hdr.wCertificateType = WIN_CERT_TYPE_EFI_GUID;
+ AuthHdr2->AuthInfo.CertType = gEfiCertTypePkcs7Guid;
+
+ if (!EFI_ERROR(Status)) {
+ Status = pRS->SetVariable ( RestoreVariables[i].BootVarName,
+ RestoreVariables[i].Guid,
+ RestoreAttr[i].Attrib | \
+ EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS,
+ VarSize,
+ DataBuffer);
+ pBS->FreePool (DataBuffer);
+ }
+
+ }
+ }
+ Buffer8 = 0;
+ Flash->DeviceWriteEnable();
+ Flash->Write((UINT8*)(pInfo.NvramAddress + 0x5F),
+ sizeof(UINT8), &Buffer8);
+ Flash->DeviceWriteDisable();
+}
+#endif // #if FAULT_TOLERANT_NVRAM_UPDATE
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: NCBUpdate
+//
+// Description: Support All NCBs updated when enable secure Flash Support
+//
+//
+// Input: SwSmiNum - SW SMI value number
+// Buffer - Flash descriptor address
+//
+// Output: None
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID NCBUpdate(
+ UINT8 Data,
+ UINT64 pInfoBlock
+)
+{
+ FUNC_BLOCK *pFuncBuff = (FUNC_BLOCK*)pInfoBlock;
+ EFI_STATUS Status;
+ UINT8 *FlashAddress;
+ static BOOLEAN BeforeSecure = FALSE;
+ ROM_AREA *Area;
+
+ if(BeforeSecure)
+ {
+ BeforeSecure = FALSE;
+ pFuncBuff->ErrorCode = 0;
+ return;
+ }
+
+ if((Data != SMIFLASH_ERASE_FLASH) && (Data != SMIFLASH_WRITE_FLASH))
+ return;
+
+ FlashAddress = (UINT8*)(UINTN)(pFuncBuff->BlockAddr +
+ (0xFFFFFFFF - FLASH_SIZE + 1));
+ for (Area = RomLayout; Area->Size != 0; Area++) {
+
+ if(Area->Type != RomAreaTypeRaw)
+ continue;
+
+ if(((UINT32)FlashAddress >= Area->Address) &&
+ ((UINT32)FlashAddress < (Area->Address + Area->Size)))
+ {
+ if(Data == 0x22)
+ {
+ Status = Flash->Erase(FlashAddress, FLASH_BLOCK_SIZE);
+ pFuncBuff->ErrorCode = EFI_ERROR(Status) != 0;
+ BeforeSecure = TRUE;
+ }
+ if(Data == 0x23)
+ {
+ Status = Flash->Write(FlashAddress, pFuncBuff->BlockSize,
+ (UINT8*)pFuncBuff->BufAddr);
+ pFuncBuff->ErrorCode = EFI_ERROR(Status) != 0;
+ BeforeSecure = TRUE;
+ }
+ }
+ }
+}
+#if REPORT_NCB_BY_ROM_LAYOUT
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: ReassignNcbByRomLayout
+//
+// Description: Re-assign NCBs Type Id by ROM Layout definition for
+// separating NCBs.
+//
+// Input: SwSmiNum - SW SMI value number
+// Buffer - Flash descriptor address
+//
+// Output: None
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+ReassignNcbByRomLayout (
+ IN UINT8 SwSmiNum,
+ IN UINT64 Buffer
+)
+{
+ BLOCK_DESC *BlockDesc;
+ ROM_AREA *Area;
+ UINT16 i, j, LastNcb;
+ UINT8 NCBTypeId = NC_BLOCK;
+
+ // return if SW SMI value is not "Get Flash Info"
+ if (SwSmiNum != SMIFLASH_GET_FLASH_INFO) return;
+
+ BlockDesc = (BLOCK_DESC*)&((INFO_BLOCK*)Buffer)->Blocks;
+ for (i = 0, LastNcb = 0xffff; i < ((INFO_BLOCK*)Buffer)->TotalBlocks; i++) {
+ if (BlockDesc[i].Type < NC_BLOCK) continue;
+ // check whether NCB is described in RomLayout.
+ for (Area = RomLayout; Area->Size != 0; Area++) {
+ if (BlockDesc[i].StartAddress != \
+ (UINT32)(Area->Address - FlashDeviceBase)) continue;
+ for (j = 0, NCBTypeId++; j < (Area->Size / FlashBlockSize); j++) {
+ BlockDesc[i + j].Type = NCBTypeId;
+ }
+ i += ((Area->Size / FLASH_BLOCK_SIZE) - 1);
+ break;
+ }
+ // if this NCB isn't describe in RomLayout
+ if (Area->Size == 0) {
+ if (i != (LastNcb + 1)) NCBTypeId++;
+ BlockDesc[i].Type = NCBTypeId;
+ }
+ LastNcb = i;
+ }
+}
+#endif // #if REPORT_NCB_BY_ROM_LAYOUT
+
+#ifdef FAULT_TOLERANT_NVRAM_UPDATE
+#if FAULT_TOLERANT_NVRAM_UPDATE == 1 && BACKUP_NVRAM_WHEN_FLASH == 0
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: GetNvramMainFFSStats
+//
+// Description: Get NVRAM Main FFS state.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_FFS_FILE_STATE*
+GetNvramMainFFSStats(
+ VOID
+)
+{
+ EFI_FFS_FILE_HEADER *FfsFileHeader;
+ EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
+
+ FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *)NVRAM_ADDRESS;
+
+ if (FwVolHeader->FvLength == NVRAM_SIZE)
+ {
+ FfsFileHeader = (EFI_FFS_FILE_HEADER *)(
+ NVRAM_ADDRESS + FwVolHeader->HeaderLength
+ );
+ return &FfsFileHeader->State;
+ }else
+ return NULL;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: CheckNVRAMArea
+//
+// Description: Check NVRam FFS state.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+CheckNVRAMArea(
+ VOID
+)
+{
+ NvramFFSState = *GetNvramMainFFSStats();
+ NvramFFSStatePtr = GetNvramMainFFSStats();
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: NVRAMChanged
+//
+// Description: Check Location of NVRAM region.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: TRUE - Location of NVRAM been changed.
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+BOOLEAN
+NVRAMChanged(
+ VOID
+)
+{
+ UINTN FVSignOffset = 0x28, NVRAMRegion = NVRAM_ADDRESS;
+ UINT32 FVSig;
+
+ // Check NVRAM_ADDRESS still NVRAM region
+ // Can we find signature ??
+ Flash->Read((UINT8*)(NVRAMRegion + FVSignOffset),sizeof(FVSig), &FVSig);
+ if (FVSig != FV_SIGNATURE) return TRUE;
+
+ // The first Data is NVAR ??
+ // Simple verify.
+ Flash->Read((UINT8*)(NVRAMRegion + NVRAM_HEADER_SIZE),sizeof(FVSig), &FVSig);
+ if ((FVSig != 'RAVN') && (FVSig != 'NVAR')) return TRUE;
+ return FALSE;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: UpdateNVRAMArea
+//
+// Description: If NVRam updated and current NVRam runs at Backup address.
+// also update NVRAM Backup address.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+UpdateNVRAMArea(
+ VOID
+)
+{
+ UINT32 i = 0, Buffer32 = 0;
+ UINT8* Buffer;
+ EFI_FFS_FILE_STATE NewNVRamFFSState;
+ EFI_STATUS Status;
+ UINTN NumberOfPages;
+ EFI_PHYSICAL_ADDRESS Phy_Address;
+
+ // Check NVRAM_ADDRESS FFS State
+ // If Status changed.
+ // Then, we got an NVRAM area update
+ // and current NVRam working at NVRAM_BACKUP_ADDRESS!!
+ // So move the NVRAM_MAIN to NVRAM_BACKUP and Restore NVRAM_MAIN State.
+ Flash->Read((UINT8*)NvramFFSStatePtr,
+ sizeof(EFI_FFS_FILE_STATE), &NewNVRamFFSState);
+ // Before update FFSState to new NVRAM, check ROMLAYOUT changed or not.
+ if(NVRAMChanged())
+ return;
+ if((NvramFFSState == NewNVRamFFSState) || (NvramFFSState == 0))
+ return;
+ NumberOfPages = ((NVRAM_SIZE) >> 12);
+ Status = pSmst->SmmAllocatePages(AllocateAnyPages, EfiRuntimeServicesData, NumberOfPages, &Phy_Address);
+
+ // NVRAM updated !!
+ // Move NVRAM Main to NVRAM Backup
+ Flash->Erase((UINT8*)NVRAM_BACKUP_ADDRESS, NVRAM_SIZE);
+ // For AMD chipset workaround !!
+ // AMD SPI can't read SPI ROM as buffer.
+ if(!EFI_ERROR(Status))
+ {
+ Buffer = (UINT8*)Phy_Address;
+ Flash->Read(
+ (UINT8*)(NVRAM_ADDRESS), NVRAM_SIZE, Buffer);
+
+ Flash->Write(
+ (UINT8*)(NVRAM_BACKUP_ADDRESS), NVRAM_SIZE, Buffer);
+
+ pSmst->SmmFreePages(Phy_Address, NumberOfPages);
+
+ }else
+ {
+ // If no memory , just do it 4 bytes one time.
+ for(; i < NVRAM_SIZE ; i += sizeof(UINT32))
+ {
+ Flash->Read(
+ (UINT8*)(NVRAM_ADDRESS + i), sizeof(UINT32), &Buffer32);
+ if(Buffer32 == 0xFFFFFFFF)
+ continue;
+ Flash->Write(
+ (UINT8*)(NVRAM_BACKUP_ADDRESS + i), sizeof(UINT32), &Buffer32);
+ }
+ }
+ // Restore NVRAM Main FFS state!!
+ Flash->Write((UINT8*)NvramFFSStatePtr,
+ sizeof(EFI_FFS_FILE_STATE),&NvramFFSState);
+}
+#endif
+#endif
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: PreserveEfiBootOrders
+//
+// Description: Save the BootXXXX contains "Windows Boot Manager"
+// For EFI OS.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID PreserveEfiBootOrders(VOID)
+{
+
+ UINTN BootOrderSize, LegacyOrderSize;
+ EFI_STATUS Status;
+ EFI_GUID EfiVariableGuid = EFI_GLOBAL_VARIABLE;
+ EFI_GUID LegacyDevOrderGuid = LEGACY_DEV_ORDER_GUID;
+ RESTORE_BOOTORDER *SavedBootXXX;
+ UINT8 i;
+ UINT16 *BootOrder, *LegacyOrder;
+
+ // Get BootOrder for restore
+ if (gSmmBootOrder == NULL) {
+ Status = pSmst->SmmAllocatePages ( AllocateAnyPages, \
+ 0, \
+ RESTORE_BOOT_ORDER_BUFFER >> 12, \
+ &gSmmBootOrder);
+ if (EFI_ERROR(Status)) return ;
+ SavedBootXXX = (RESTORE_BOOTORDER*)gSmmBootOrder;
+ BootOrder = (UINT16*)(gSmmBootOrder + BOOT_ORDER_OFFSET);
+ } else return;
+
+ // Get BootOrder variable size
+ BootOrderSize = 0;
+ Status = pRS->GetVariable(L"BootOrder",&EfiVariableGuid, \
+ NULL,&BootOrderSize, NULL);
+ if(Status != EFI_NOT_FOUND)
+ {
+ Status = pRS->GetVariable(L"BootOrder", &EfiVariableGuid, \
+ NULL, &BootOrderSize, BootOrder);
+ if(EFI_ERROR(Status)) return;
+
+ } else return; // If BootOrder is not found, just return
+
+ // Due to the "RT" attribute could be removed from LegacyDevOreder variable,
+ // here to enable Nvram Full Access control for getting variable if "NV+BS" only.
+ if (gNvramControl == NULL) gNvramControl = LocateNvramControlSmmProtocol();
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(TRUE);
+ // Get LegacyBootOrder variable size
+ LegacyOrder = (UINT16*)(gSmmBootOrder + LEGACY_BOOT_ORDER_OFFSET);
+ LegacyOrderSize = 0;
+ Status = pRS->GetVariable(L"LegacyDevOrder", \
+ &LegacyDevOrderGuid, NULL, &LegacyOrderSize, NULL);
+ if(Status != EFI_NOT_FOUND) {
+ Status = pRS->GetVariable(L"LegacyDevOrder",
+ &LegacyDevOrderGuid, \
+ (UINT32*)((UINT8*)LegacyOrder + sizeof(UINT32)), \
+ &LegacyOrderSize, \
+ (UINT8*)LegacyOrder + (sizeof(UINT32) * 2));
+ *(UINT32*)LegacyOrder = (UINT32)LegacyOrderSize;
+ } else *(UINT32*)LegacyOrder = 0; // Clear Buffer to indicate no LegacyDevOrder
+ // Disable the Nvram Full Access control after processing the "LegacyDevOrder".
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(FALSE);
+
+ // Get BootXXXX for restore
+ for(i = 0, gNumBootDevice = 0; i < (BootOrderSize / sizeof(UINT16)); i++)
+ {
+ Swprintf(SavedBootXXX->BootVarName, L"Boot%04X", *(BootOrder + i));
+ // Get Bootxxx variable size
+ SavedBootXXX->BootXXXXSize = 0;
+ Status = pRS->GetVariable( SavedBootXXX->BootVarName, \
+ &EfiVariableGuid, \
+ NULL, \
+ &SavedBootXXX->BootXXXXSize, \
+ NULL);
+ // if not found, try upper case.
+ if(Status == EFI_NOT_FOUND)
+ {
+ Swprintf(SavedBootXXX->BootVarName, L"Boot%04X", *(BootOrder + i));
+ // Get Variable size.
+ SavedBootXXX->BootXXXXSize = 0;
+ Status = pRS->GetVariable(
+ SavedBootXXX->BootVarName, \
+ &EfiVariableGuid, \
+ NULL, \
+ &SavedBootXXX->BootXXXXSize, \
+ NULL);
+ }
+ // Get this from BootOrder, there must be a variable
+ pRS->GetVariable( SavedBootXXX->BootVarName, \
+ &EfiVariableGuid, \
+ NULL, \
+ &SavedBootXXX->BootXXXXSize, \
+ (UINT8*)SavedBootXXX + sizeof(RESTORE_BOOTORDER));
+ SavedBootXXX->BootOrderNO = *(BootOrder + i);
+ // Ptr to next "BootXXXX" buffer.
+ (UINT8*)SavedBootXXX += (SavedBootXXX->BootXXXXSize + \
+ sizeof(RESTORE_BOOTORDER));
+ gNumBootDevice++;
+ }
+}
+
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: RestoreEfiBootOrders
+//
+// Description: Restore the BootXXXX contains "Windows Boot Manager"
+// For EFI OS.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+
+VOID RestoreEfiBootOrders (VOID)
+{
+ EFI_GUID EfiVariableGuid = EFI_GLOBAL_VARIABLE;
+ EFI_GUID LegacyDevOrderGuid = LEGACY_DEV_ORDER_GUID;
+ UINTN BootOrderSize;
+ UINT16 *BootOrder;
+ RESTORE_BOOTORDER *SavedBootXXX;
+ UINT8 i;
+ EFI_STATUS Status;
+
+ if (gSmmBootOrder == NULL) return;
+ BootOrder = (UINT16*)(gSmmBootOrder + BOOT_ORDER_OFFSET);
+ SavedBootXXX = (RESTORE_BOOTORDER*)gSmmBootOrder;
+ BootOrderSize = 0;
+ // Get BootOrderSize Variable size if exist.
+ Status = pRS->GetVariable(L"BootOrder",&EfiVariableGuid,NULL,&BootOrderSize, NULL);
+ if(Status != EFI_NOT_FOUND)
+ {
+ Status = pRS->GetVariable( L"BootOrder", &EfiVariableGuid, \
+ NULL, &BootOrderSize, BootOrder);
+ // if BootOreder found, update nothing.
+ if(!EFI_ERROR(Status))
+ {
+ // Free BootOrder buffer in SMM.
+ pSmst->SmmFreePages (gSmmBootOrder, RESTORE_BOOT_ORDER_BUFFER >> 12);
+ // Re-initial global variable.
+ gSmmBootOrder = NULL;
+ gNumBootDevice = 0;
+ return;
+ }
+ }
+
+ for(i = 0 ; i < gNumBootDevice; i++)
+ {
+ // Restore BootXXXX
+ Status = pRS->SetVariable ( \
+ SavedBootXXX->BootVarName, \
+ &EfiVariableGuid, \
+ EFI_VARIABLE_NON_VOLATILE | \
+ EFI_VARIABLE_RUNTIME_ACCESS | \
+ EFI_VARIABLE_BOOTSERVICE_ACCESS, \
+ SavedBootXXX->BootXXXXSize, \
+ (UINT8*)SavedBootXXX + sizeof(RESTORE_BOOTORDER));
+ BootOrder[i] = SavedBootXXX->BootOrderNO;
+ // Ptr to next "BootXXXX" buffer.
+ (UINT8*)SavedBootXXX += (SavedBootXXX->BootXXXXSize + sizeof(RESTORE_BOOTORDER));
+ }
+ // Restore "BootOrder"
+ pRS->SetVariable ( L"BootOrder",
+ &EfiVariableGuid,
+ EFI_VARIABLE_NON_VOLATILE |
+ EFI_VARIABLE_RUNTIME_ACCESS |
+ EFI_VARIABLE_BOOTSERVICE_ACCESS,
+ (sizeof(UINT16) * i),
+ BootOrder );
+
+ // Enable the Nvram Full Access control for processing the "LegacyDevOrder".
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(TRUE);
+ // Restore "LegacyDevOrder"
+ BootOrder = (UINT16*)(gSmmBootOrder + LEGACY_BOOT_ORDER_OFFSET);
+ BootOrderSize = *(UINT32*)BootOrder;
+ if (BootOrderSize != 0) pRS->SetVariable (L"LegacyDevOrder", \
+ &LegacyDevOrderGuid, \
+ *(UINT32*)((UINT8*)BootOrder + sizeof(UINT32)), \
+ BootOrderSize, \
+ (UINT8*)BootOrder + (sizeof(UINT32) * 2));
+ // Disable the Nvram Full Access control after processing the "LegacyDevOrder".
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(FALSE);
+
+ // Free BootOrder buffer in SMM.
+ pSmst->SmmFreePages (gSmmBootOrder, RESTORE_BOOT_ORDER_BUFFER >> 12);
+ // Re-initial global variable.
+ gSmmBootOrder = NULL;
+ gNumBootDevice = 0;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: PreserveSetupPassword
+//
+// Description: Save the Setup Password
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID PreserveSetupPassword(VOID)
+{
+ UINTN VariableSize;
+ EFI_STATUS Status;
+
+ // Due to the "RT" attribute could be removed from "AMITSESetup" variable,
+ // here to enable Nvram Full Access control for getting variable with "NV+BS" only.
+ if (gNvramControl == NULL) gNvramControl = LocateNvramControlSmmProtocol();
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(TRUE);
+
+ VariableSize = sizeof(AMITSESETUP);
+ Status = pRS->GetVariable ( L"AMITSESetup", \
+ &gAmiTseSetupGuid, \
+ &gAmiTseDataAttr, \
+ &VariableSize, \
+ &gAmiTseData );
+
+ if (EFI_ERROR(Status)) gAmiTseDataAttr = 0;
+
+ // Disable the Nvram Full Access control after processing the "AMITSESetup".
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(FALSE);
+}
+
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: RestoreSetupPassword
+//
+// Description: Restore previous Password
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RestoreSetupPassword (VOID)
+{
+ UINTN VariableSize = 0;
+ EFI_STATUS Status;
+ AMITSESETUP TempAmiTseData;
+
+ pRS->GetVariable ( L"AMITSESetup", \
+ &gAmiTseSetupGuid, \
+ NULL, \
+ &VariableSize, \
+ &gAmiTseData );
+
+ //
+ // Check the length of new AMITSESETUP stucture and old AMITSESETUP
+ //
+ if(VariableSize != sizeof(AMITSESETUP)) {
+ //
+ // Sturcture changed, Don't Restore !!
+ //
+ return;
+ }
+
+ if (gAmiTseDataAttr == 0) return;
+ //
+ // Check Nvram is updated or not. If updated, restore only the password.
+ // SilentBoot value will be restored to default value.
+ //
+ VariableSize = sizeof(AMITSESETUP);
+ Status = pRS->GetVariable ( L"AMITSESetup", \
+ &gAmiTseSetupGuid, \
+ NULL, \
+ &VariableSize, \
+ &TempAmiTseData );
+
+ if(Status == EFI_SUCCESS) {
+ //
+ // If the nvram is not modified exit without restoring the AMITSESETUP nvram variable.
+ //
+ if (!MemCmp(&TempAmiTseData, &gAmiTseData, sizeof(AMITSESETUP))){
+ return;
+ }
+ }
+ // Enable the Nvram Full Access control for processing the "AMITSESetup".
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(TRUE);
+ gAmiTseData.AMISilentBoot= DEFAULT_QUIET_BOOT;
+ VariableSize = sizeof(AMITSESETUP);
+ pRS->SetVariable ( L"AMITSESetup", \
+ &gAmiTseSetupGuid, \
+ gAmiTseDataAttr, \
+ VariableSize, \
+ &gAmiTseData );
+ // Disable the Nvram Full Access control after processing the "AMITSESetup".
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(FALSE);
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: DisablePowerButton
+//
+// Description: Disable Power Button when AFU.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID DisablePowerButton(VOID)
+{
+ // Disable PWR Button SMI
+ IoWrite16(PM_BASE_ADDRESS + 0x02, IoRead16(PM_BASE_ADDRESS + 0x02) & 0xFEDF);
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: EnablePowerButton
+//
+// Description: Re-Enable PowerButton after flash BIOS
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID EnablePowerButton (VOID)
+{
+ //Clear All PM Statuses
+ IoWrite16(PM_BASE_ADDRESS,IoRead16(PM_BASE_ADDRESS));
+ // Re-ensable PWR Button SMI
+ IoWrite16(PM_BASE_ADDRESS + 0x02, BIT05 + BIT08);
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: DisableUSBKBD
+//
+// Description: Disable USB Keyboard when flashing BIOS.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID DisableUSBKBD(VOID)
+{
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+ EFI_GUID EfiVariableGuid = AMITSESETUP_GUID;
+ UINTN VariableSize = sizeof(VOID*);
+ EFI_STATUS Status;
+
+ Status = pRS->GetVariable ( L"USB_POINT",
+ &EfiVariableGuid,
+ NULL,
+ &VariableSize,
+ &gUsbRtKbcAccessControl);
+ if(!EFI_ERROR(Status) && (gUsbRtKbcAccessControl != NULL))
+ gUsbRtKbcAccessControl(1);
+#endif
+#endif
+
+ // Disable KBC.
+ if (0xff != IoRead8(0x60)) {
+ IoWrite8(0x64, 0xad);
+ IoWrite8(0x21, IoRead8(0x21) | 0x2);
+ }
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: EnableUSBKBD
+//
+// Description: Re-Enable USB KeyBoard after flashing BIOS
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID EnableUSBKBD (VOID)
+{
+ // Enable KBC.
+ if (0xff != IoRead8(0x60)) {
+ IoWrite8(0x64, 0xae);
+ IoWrite8(0x21, IoRead8(0x21) & 0xfd);
+ }
+
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+ if (gUsbRtKbcAccessControl != NULL)
+ gUsbRtKbcAccessControl(0);
+#endif
+#endif
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: GetUsbProtocol
+//
+// Description: This hook gets USB Protocol for disabling USB while flashing.
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+GetUsbProtocolPoint(
+ IN EFI_EVENT Event,
+ IN VOID *Context
+)
+{
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+ EFI_GUID EfiVariableGuid = AMITSESETUP_GUID;
+ EFI_USB_PROTOCOL *AmiUsb = NULL;
+
+ pBS->LocateProtocol(&gEfiUsbProtocolGuid, NULL, &AmiUsb);
+ pRS->SetVariable ( L"USB_POINT",
+ &EfiVariableGuid,
+ EFI_VARIABLE_RUNTIME_ACCESS |
+ EFI_VARIABLE_BOOTSERVICE_ACCESS,
+ sizeof(VOID*),
+ (VOID*)&AmiUsb->UsbRtKbcAccessControl );
+#endif
+#endif
+ return;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: GetUsbControl
+//
+// Description: This hook gets USB Protocol's function
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS
+GetUsbControl(
+ CONST EFI_GUID *Protocol,
+ VOID *Interface,
+ EFI_HANDLE Handle
+)
+{
+ GetUsbProtocolPoint( NULL, NULL );
+
+ return EFI_SUCCESS;
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: USBInSmmFunction
+//
+// Description: Notify for USB smm Protocol
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+USBInSmmFunction(
+ VOID
+)
+{
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+ EFI_STATUS Status;
+ EFI_USB_PROTOCOL *AmiUsb = NULL;
+ EFI_GUID EfiVariableGuid = AMITSESETUP_GUID;
+ EFI_GUID AmiUsbSmmProtocolGuid = AMI_USB_SMM_PROTOCOL_GUID;
+
+ Status = pSmst->SmmLocateProtocol(
+ &AmiUsbSmmProtocolGuid,
+ NULL,
+ &AmiUsb );
+ if( EFI_ERROR(Status) )
+ {
+ VOID *NotifyReg;
+
+ Status = pSmst->SmmRegisterProtocolNotify(
+ &AmiUsbSmmProtocolGuid,
+ GetUsbControl,
+ &NotifyReg );
+ }
+ else
+ {
+ GetUsbProtocolPoint( NULL, NULL );
+ }
+
+ return;
+#else
+ return;
+#endif
+#else
+ return;
+#endif
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: USBNonSmmFunction
+//
+// Description: Find USB Protocol pointer
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+USBNonSmmFunction(
+ VOID
+)
+{
+#if AMIUSB_SUPPORT == 1
+#if (((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+ EFI_STATUS Status;
+ EFI_USB_PROTOCOL *AmiUsb = NULL;
+ EFI_GUID EfiVariableGuid = AMITSESETUP_GUID;
+
+ Status = pBS->LocateProtocol(&gEfiUsbProtocolGuid, NULL, &AmiUsb);
+ if(EFI_ERROR(Status))
+ {
+ EFI_EVENT SmiFlashEvt;
+ VOID *NotifyReg;
+
+ Status = pBS->CreateEvent (
+ EFI_EVENT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ GetUsbProtocolPoint,
+ NULL,
+ &SmiFlashEvt
+ );
+
+ if (!EFI_ERROR (Status)) {
+ Status = pBS->RegisterProtocolNotify (
+ &gEfiUsbProtocolGuid,
+ SmiFlashEvt,
+ &NotifyReg);
+ }
+ }else
+ pRS->SetVariable ( L"USB_POINT",
+ &EfiVariableGuid,
+ EFI_VARIABLE_RUNTIME_ACCESS |
+ EFI_VARIABLE_BOOTSERVICE_ACCESS,
+ sizeof(VOID*),
+ (VOID*)&AmiUsb->UsbRtKbcAccessControl );
+
+ return;
+#else
+ return;
+#endif //(((USB_DRIVER_MAJOR_VER*100 ) + (USB_DRIVER_MINOR_VER*10) + (USB_DRIVER_BUILD_VER)) >= 891)
+#else
+ return;
+#endif //AMIUSB_SUPPORT
+}
+#if AFU_BUFFER_IN_SHADOW
+#include <AmiCspLib.h>
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: UpdateShadowBuffer
+//
+// Description: This hook enables shadow write for updating buffer pointer
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID UpdateShadowBuffer(
+ IN UINT8 Data,
+ IN OUT UINT64 pCommBuff
+)
+{
+ UINT8 FixLen;
+ static UINT8* Buffer = 0;
+ UINT32 LowBufferAddress, HighBufferAddress;
+
+ if(Data == SMIFLASH_ENABLE_FLASH)
+ OemRuntimeShadowRamWrite(TRUE);
+ else
+ {
+ if((UINTN)Buffer == 0)
+ {
+ Buffer = (UINT8*)0xF0000;
+ for(;*(UINT32*)Buffer != 0x46534124 &&
+ ((UINTN)Buffer < 0x100000);(UINTN)Buffer++);
+ }
+
+ if((UINTN)Buffer == 0xFFFFF)
+ return;
+ // Skip Sig
+ FixLen = *(Buffer + 4);
+
+ if(*(UINT32*)(Buffer + FixLen) == 0 ||
+ *(UINT32*)(Buffer + FixLen) == 0xFFFFFFFF)
+ return;
+
+ LowBufferAddress = *(UINT32*)(Buffer + FixLen);
+ HighBufferAddress = 0;
+ pCommBuff = HighBufferAddress;
+ pCommBuff = Shl64(pCommBuff, 32);
+ pCommBuff += LowBufferAddress;
+ }
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: ClearShadowBuffer
+//
+// Description: Elink for Disable shadow and clear buffer pointer
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID ClearShadowBuffer (
+ IN UINT8 Data,
+ IN OUT UINT64 pCommBuff
+)
+{
+ UINT8 FixLen;
+ static UINT8* Buffer = 0;
+
+ if(Data == SMIFLASH_DISABLE_FLASH)
+ OemRuntimeShadowRamWrite(FALSE);
+ else
+ {
+ if((UINTN)Buffer == 0)
+ {
+ Buffer = (UINT8*)0xF0000;
+ for(;*(UINT32*)Buffer != 0x46534124 &&
+ ((UINTN)Buffer < 0x100000);(UINTN)Buffer++);
+
+ }
+ if((UINTN)Buffer == 0xFFFFF)
+ return;
+
+ // Skip Sig
+ FixLen = *(Buffer + 4);
+ // Clear Buffer address
+ *(UINT32*)(Buffer + FixLen) = 0;
+ }
+}
+#endif
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: FindFfsFileByGuid
+//
+// Description: This hooks finds FFS file by GUID.
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+UINT32
+FindFfsFileByGuid (
+ IN UINT8 *pFV,
+ IN UINT32 FvLength,
+ IN EFI_GUID *pGuid
+)
+{
+ EFI_FFS_FILE_HEADER *pFfsFile;
+ UINT32 Length, FileSize;
+
+ if ((((EFI_FIRMWARE_VOLUME_HEADER*)pFV)->Signature != FV_SIGNATURE) || \
+ (((EFI_FIRMWARE_VOLUME_HEADER*)pFV)->FvLength != (UINT64)FvLength))
+ return FALSE;
+ Length = ((EFI_FIRMWARE_VOLUME_HEADER*)pFV)->HeaderLength;
+ pFfsFile = (EFI_FFS_FILE_HEADER*)((UINT32)pFV + Length);
+ FileSize = *(UINT32 *)pFfsFile->Size & 0x00FFFFFF;
+ do {
+ if (!MemCmp ((UINT8*)pFfsFile, pGuid ,sizeof(EFI_GUID)))
+ return (UINT32)pFfsFile;
+ FileSize = *(UINT32 *)pFfsFile->Size & 0x00FFFFFF;
+ pFfsFile = (EFI_FFS_FILE_HEADER*)((UINT32)pFfsFile + FileSize);
+ pFfsFile = (EFI_FFS_FILE_HEADER*)(((UINT32)pFfsFile + 7) & 0xfffffff8);
+ if ((UINT32)((UINT8*)pFfsFile - pFV) >= FvLength) break;
+ } while(((*(UINT32 *)pFfsFile->Size & 0x00FFFFFF) != 0xFFFFFF) && \
+ ((*(UINT32 *)pFfsFile->Size & 0x00FFFFFF) != 0));
+ return FALSE;
+}
+#if defined SecSMIFlash_SUPPORT && SecSMIFlash_SUPPORT == 1
+#include <FlashUpd.h>
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: PreserveRomHole
+//
+// Description: This hook preserves ROM Holes while flashing.
+//
+// Input:
+//
+// Output:
+//
+// Returns:
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RecoveryPreserveRomHoles(VOID) {
+ EFI_GUID RomLayoutGuid = ROM_LAYOUT_FFS_GUID;
+ ROM_AREA *RomArea;
+ UINT32 FfsFile = 0, RomHoleFfs1, RomHoleFfs2, RomHoleSize;
+ EFI_GUID HobListGuid = HOB_LIST_GUID;
+ EFI_STATUS Status;
+ RECOVERY_IMAGE_HOB *RecoveryHob;
+ EFI_GUID RecoveryHobGuid = AMI_RECOVERY_IMAGE_HOB_GUID;
+ EFI_GUID FlashUpdGuid = FLASH_UPDATE_GUID;
+ AMI_FLASH_UPDATE_BLOCK FlashUpdDesc;
+ UINTN Size, Attributes;
+ UINT8 *Fv;
+ EFI_GUID *pGuid = NULL;
+
+ RecoveryHob = GetEfiConfigurationTable(pST, &HobListGuid);
+ if ((RecoveryHob == NULL) || \
+ (((EFI_HOB_HANDOFF_INFO_TABLE*)RecoveryHob)->BootMode != \
+ BOOT_ON_FLASH_UPDATE)) return;
+ // Due to AFU 3.03 have support to preserve Romholes if capsule mode,
+ // SMIFlash only preserve Romholes if Recovery mode of Secure Update.
+ Status = pRS->GetVariable(FLASH_UPDATE_VAR, \
+ &FlashUpdGuid, (UINT32*)&Attributes, &Size, &FlashUpdDesc);
+ if (EFI_ERROR(Status) || (FlashUpdDesc.FlashOpType != FlRecovery)) return;
+
+ Status = FindNextHobByGuid(&RecoveryHobGuid, &RecoveryHob);
+ if (EFI_ERROR(Status)) return;
+ // Search Romlayout in ROM
+ for(Fv = (UINT8*)(0xffffffff - FLASH_SIZE + 1);
+ ((Fv < (UINT8*)0xffffffff) && (FfsFile == 0));
+ FfsFile = FindFfsFileByGuid (Fv,
+ (UINT32)(((EFI_FIRMWARE_VOLUME_HEADER*)Fv)->FvLength), &RomLayoutGuid),
+ Fv = Fv+16 );
+
+ if(FfsFile == 0) return;
+ for(pGuid = RecoveryPreserveGUID; pGuid->Data1 != 0; pGuid++) {
+ // Search in ROM File
+ RomHoleFfs1 = 0;
+ for (RomArea = (ROM_AREA*)(FfsFile + 0x2c); RomArea->Size != 0; RomArea++)
+ {
+ if (RomArea->Type != RomAreaTypeFv) continue;
+ RomHoleFfs1 = FindFfsFileByGuid ((UINT8*)RomArea->Address, \
+ RomArea->Size, \
+ pGuid);
+ if(RomHoleFfs1 != 0)
+ break;
+ }
+ // if not found, search next.
+ if (RomHoleFfs1 == 0) continue;
+
+ // Search in Recovery File
+ RomHoleFfs2 = 0;
+ for (RomArea = RomLayout; RomArea->Size != 0; RomArea++)
+ {
+
+ if (RomArea->Type != RomAreaTypeFv) continue;
+ RomHoleFfs2 = FindFfsFileByGuid ( \
+ (UINT8*)(RecoveryHob->Address + RomArea->Offset), \
+ RomArea->Size, \
+ pGuid);
+ if(RomHoleFfs2 != 0)
+ break;
+ }
+ // FFS found in ROM and Recovery File
+ if (RomHoleFfs2 != 0)
+ {
+ RomHoleSize = *(UINT32*)(RomHoleFfs1 + 0x14) & 0xFFFFFF;
+ if ((RomHoleSize == (*(UINT32*)(RomHoleFfs2 + 0x14) & 0xFFFFFF)) && \
+ MemCmp((UINT8*)(RomHoleFfs1 + sizeof(EFI_FFS_FILE_HEADER)), \
+ (UINT8*)(RomHoleFfs2 + sizeof(EFI_FFS_FILE_HEADER)), \
+ RomHoleSize - sizeof(EFI_FFS_FILE_HEADER))) {
+ pBS->CopyMem((UINT8*)(RomHoleFfs2 + sizeof(EFI_FFS_FILE_HEADER)), \
+ (UINT8*)(RomHoleFfs1 + sizeof(EFI_FFS_FILE_HEADER)), \
+ RomHoleSize - sizeof(EFI_FFS_FILE_HEADER));
+ }
+ }
+ }
+}
+#endif
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------
+// Procedure: PreserveWin8Variables
+//
+// Description: Preserve all variables that GUID is {77fa9abd-0359-4d32-bd60-28f4e78f784b}.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID PreserveWin8Variables(VOID)
+{
+ UINTN VarNameSize = 2;
+ CHAR16 *VarName = NULL;
+ CHAR16 *OldVarName = NULL;
+ EFI_GUID VarGuid;
+ UINTN VariableSize;
+ UINT8 *VariableData;
+ EFI_STATUS Status;
+ RESTORE_VAR *pRestoreVarList;
+ UINT8 *pData;
+ UINT32 VariableAttr;
+
+ Status = pSmst->SmmAllocatePool (
+ EfiRuntimeServicesData,
+ VarNameSize, &VarName
+ );
+
+ if(EFI_ERROR(Status))
+ return;
+
+ Status = pSmst->SmmAllocatePool (
+ EfiRuntimeServicesData,
+ sizeof(RESTORE_VAR), &RestoreVarList);
+
+ if(EFI_ERROR(Status))
+ {
+ RestoreVarList = NULL;
+ return;
+ }
+ gNvramControl = LocateNvramControlSmmProtocol();
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(TRUE);
+ pRestoreVarList = RestoreVarList;
+
+ // Init Variable List
+ pRestoreVarList->NextData = 0;
+
+ // Get frist variable
+ VarName[0] = NULL;
+ do{
+ if(VarNameSize != 0)
+ Status = pRS->GetNextVariableName (&VarNameSize,
+ VarName, &VarGuid);
+ else
+ Status = EFI_BUFFER_TOO_SMALL;
+ if(Status == EFI_BUFFER_TOO_SMALL)
+ {
+ // If VarNameSize is 0, VarName is not existed.
+ if(VarNameSize != 0)
+ {
+ // Keep the old variable name for next search
+ OldVarName = VarName;
+ }
+
+ // Avoid dead loop
+ VarNameSize = DefaultVariableSize;
+
+ Status = pSmst->SmmAllocatePool (
+ EfiRuntimeServicesData,
+ VarNameSize, &VarName);
+
+ if(EFI_ERROR(Status))
+ return;
+
+ MemCpy(VarName, OldVarName, VarNameSize);
+
+ continue;
+ }
+
+
+ if(!EFI_ERROR(Status))
+ {
+ if(guidcmp(&VarGuid, &gWin8Guid))
+ {
+ // Make sure every time, it gets a buffer too small,
+ // don't waste this buffer
+ VarNameSize = DefaultVariableSize;
+ continue;
+ }
+
+ VariableSize = 0;
+ Status = pRS->GetVariable(VarName, &gWin8Guid,
+ NULL, &VariableSize, NULL);
+
+ if(Status != EFI_BUFFER_TOO_SMALL)
+ continue;
+
+ Status = pSmst->SmmAllocatePool (
+ EfiRuntimeServicesData,
+ VariableSize, &VariableData);
+
+ if(EFI_ERROR(Status))
+ continue;
+
+ Status = pRS->GetVariable(VarName, &gWin8Guid,
+ &VariableAttr, &VariableSize, VariableData);
+
+ if(EFI_ERROR(Status))
+ {
+ pSmst->SmmFreePool(VariableData);
+ continue;
+ }
+ // Store variable in Link list
+ Status = pSmst->SmmAllocatePool (
+ EfiRuntimeServicesData,
+ sizeof(RESTORE_VAR), &pData);
+
+ if(EFI_ERROR(Status))
+ continue;
+ Status = pSmst->SmmAllocatePool (
+ EfiRuntimeServicesData,
+ VarNameSize, &OldVarName);
+
+ if(EFI_ERROR(Status))
+ continue;
+
+ MemCpy(OldVarName, VarName, VarNameSize);
+ // Free the bigger Varname
+ pSmst->SmmFreePool(VarName);
+
+
+ pRestoreVarList->rVar.BootVarName = OldVarName;
+ pRestoreVarList->rVar.Guid = &gWin8Guid;
+ pRestoreVarList->rATTR.Attrib = VariableAttr;
+ pRestoreVarList->rATTR.Size = VariableSize;
+ pRestoreVarList->rATTR.Data = VariableData;
+ pRestoreVarList->NextData = (UINTN)pData;
+
+ (UINT8*)pRestoreVarList = pData;
+ pRestoreVarList->NextData = 0;
+ // Make sure every time, it gets a buffer too small,
+ // make it allocate new buffer for name
+ VarNameSize = 0;
+ }
+
+ }while(Status != EFI_NOT_FOUND);
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(FALSE);
+}
+//<AMI_PHDR_START>
+//---------------------------------------------------------------------
+// Procedure: RestoreWin8Variables
+//
+// Description: Restore all variables that GUID is {77fa9abd-0359-4d32-bd60-28f4e78f784b}.
+//
+// Input: NONE
+//
+// Output: NONE
+//
+// Returns: NONE
+//
+//----------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RestoreWin8Variables (VOID)
+{
+ RESTORE_VAR *pRestoreVarList = RestoreVarList, *TempPoint;
+ EFI_STATUS Status;
+
+ if(RestoreVarList == NULL)
+ return;
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(TRUE);
+ for( ; pRestoreVarList->NextData != 0 ; )
+ {
+ Status = pRS->SetVariable ( pRestoreVarList->rVar.BootVarName,
+ pRestoreVarList->rVar.Guid,
+ pRestoreVarList->rATTR.Attrib,
+ pRestoreVarList->rATTR.Size,
+ pRestoreVarList->rATTR.Data );
+
+ (UINTN)TempPoint = pRestoreVarList->NextData;
+
+ pSmst->SmmFreePool(pRestoreVarList->rVar.BootVarName);
+ pSmst->SmmFreePool(pRestoreVarList->rATTR.Data);
+ pSmst->SmmFreePool(pRestoreVarList);
+ pRestoreVarList = TempPoint;
+ }
+ if (gNvramControl) gNvramControl->ShowBootTimeVariables(FALSE);
+ RestoreVarList = NULL;
+}
+#else // #if defined _OUTSIDE_SMM_
+//*********** OUTSIDE SMM ***********************************************
+#if defined RECOVERY_PRESERVE_VARS_IN_SMM && RECOVERY_PRESERVE_VARS_IN_SMM == 1
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+//
+// Procedure: mSMIFlashSmi
+//
+// Description: mSMIFlashSmi structure for generating SW SMI call.
+//
+// Input:
+//
+// Output:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+static UINT8 mSMIFlashSmi[] = {
+ 0x50, // push eax
+ 0x53, // push ebx
+ 0x51, // push ecx
+ 0x52, // push edx
+ 0xBA, SW_SMI_IO_ADDRESS, 0, 0, 0, // mov edx, SW_SMI_IO_ADDRESS
+ 0xB8, 0x00, 0x00, 0x00, 0x00, // mov eax, 0 //SW SMI value
+ 0xBB, 0x00, 0x00, 0x00, 0x00, // mov ebx, 0 //LowBufferAddress
+ 0xB9, 0x00, 0x00, 0x00, 0x00, // mov ecx, 0 //HighBufferAddress
+ 0xEE, // out dx, al
+ 0x5A, // pop edx
+ 0x59, // pop ecx
+ 0x5B, // pop ebx
+ 0x58, // pop eax
+ 0xC3, // ret
+};//mSMIFlashSmi[]
+
+FUNC_BLOCK FuncBlock = {0,0,0,0};
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+//
+// Procedure: RecoveryHookBeforeFlash
+//
+// Description: This hook preserves variables in SMM while reflash update.
+//
+// Input:
+//
+// Output:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RecoveryHookBeforeFlash (VOID)
+{
+ void (*IssueSWSMI)(void);
+ *(UINT8*)&mSMIFlashSmi[10] = SMIFLASH_ENABLE_FLASH; //EAX
+ *(UINT32*)&mSMIFlashSmi[15] = (UINT32)&FuncBlock; //EBX
+ IssueSWSMI = (void*)mSMIFlashSmi;
+ IssueSWSMI();
+#if EC_FIRMWARE_UPDATE_INTERFACE_SUPPORT
+ // For following DeviceWriteEnable call of reflash.c.
+ Flash->DeviceWriteDisable();
+#endif
+}
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+//
+// Procedure: RecoveryHookAfterFlash
+//
+// Description: This hook restores variables from SMM after reflash update.
+//
+// Input:
+//
+// Output:
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID RecoveryHookAfterFlash (VOID)
+{
+ void (*IssueSWSMI)(void);
+
+#if EC_FIRMWARE_UPDATE_INTERFACE_SUPPORT
+ // For following DeviceWriteDisable call of smiflash func#24.
+ Flash->DeviceWriteEnable();
+#endif
+ *(UINT8*)&mSMIFlashSmi[10] = SMIFLASH_DISABLE_FLASH;//EAX
+ *(UINT32*)&mSMIFlashSmi[15] = (UINT32)&FuncBlock; //EBX
+ IssueSWSMI = (void*)mSMIFlashSmi;
+ IssueSWSMI();
+}
+#endif // if defined RECOVERY_PRESERVE_IN_SMM && RECOVERY_PRESERVE_IN_SMM == 1
+#endif // if defined _OUTSIDE_SMM_
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2011, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-13 15:19:26 +0000