\r
Internal generic functions to operate flash block.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
}\r
\r
/**\r
- To erase the block with the spare block size.\r
+ To erase the block with specified blocks.\r
\r
\r
@param FtwDevice The private data of FTW driver\r
@param FvBlock FVB Protocol interface\r
@param Lba Lba of the firmware block\r
+ @param NumberOfBlocks The number of consecutive blocks starting with Lba\r
\r
@retval EFI_SUCCESS Block LBA is Erased successfully\r
@retval Others Error occurs\r
FtwEraseBlock (\r
IN EFI_FTW_DEVICE *FtwDevice,\r
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r
- EFI_LBA Lba\r
+ EFI_LBA Lba,\r
+ UINTN NumberOfBlocks\r
)\r
{\r
return FvBlock->EraseBlocks (\r
FvBlock,\r
Lba,\r
- FtwDevice->NumberOfSpareBlock,\r
+ NumberOfBlocks,\r
EFI_LBA_LIST_TERMINATOR\r
);\r
}\r
partially erased.\r
@retval EFI_INVALID_PARAMETER One or more of the LBAs listed\r
in the variable argument list do\r
- not exist in the firmware volume. \r
+ not exist in the firmware volume.\r
\r
\r
**/\r
);\r
}\r
\r
-/**\r
- Retrive the proper FVB protocol interface by HANDLE.\r
-\r
-\r
- @param FvBlockHandle The handle of FVB protocol that provides services for\r
- reading, writing, and erasing the target block.\r
- @param FvBlock The interface of FVB protocol\r
-\r
- @retval EFI_SUCCESS The function completed successfully\r
- @retval EFI_ABORTED The function could not complete successfully\r
-\r
-**/\r
-EFI_STATUS\r
-FtwGetFvbByHandle (\r
- IN EFI_HANDLE FvBlockHandle,\r
- OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvBlock\r
- )\r
-{\r
- //\r
- // To get the FVB protocol interface on the handle\r
- //\r
- return gBS->HandleProtocol (\r
- FvBlockHandle,\r
- &gEfiFirmwareVolumeBlockProtocolGuid,\r
- (VOID **) FvBlock\r
- );\r
-}\r
-\r
/**\r
\r
Is it in working block?\r
\r
/**\r
\r
- Get firmware block by address.\r
+ Get firmware volume block by address.\r
\r
\r
@param Address Address specified the block\r
UINTN Index;\r
EFI_PHYSICAL_ADDRESS FvbBaseAddress;\r
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;\r
- EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r
EFI_HANDLE FvbHandle;\r
+ UINTN BlockSize;\r
+ UINTN NumberOfBlocks;\r
\r
*FvBlock = NULL;\r
FvbHandle = NULL;\r
+ HandleBuffer = NULL;\r
//\r
// Locate all handles of Fvb protocol\r
//\r
- Status = gBS->LocateHandleBuffer (\r
- ByProtocol,\r
- &gEfiFirmwareVolumeBlockProtocolGuid,\r
- NULL,\r
- &HandleCount,\r
- &HandleBuffer\r
- );\r
+ Status = GetFvbCountAndBuffer (&HandleCount, &HandleBuffer);\r
if (EFI_ERROR (Status)) {\r
return NULL;\r
}\r
// Get the FVB to access variable store\r
//\r
for (Index = 0; Index < HandleCount; Index += 1) {\r
- Status = gBS->HandleProtocol (\r
- HandleBuffer[Index],\r
- &gEfiFirmwareVolumeBlockProtocolGuid,\r
- (VOID **) &Fvb\r
- );\r
+ Status = FtwGetFvbByHandle (HandleBuffer[Index], &Fvb);\r
if (EFI_ERROR (Status)) {\r
break;\r
}\r
continue;\r
}\r
\r
- FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) FvbBaseAddress);\r
- if ((Address >= FvbBaseAddress) && (Address <= (FvbBaseAddress + (FwVolHeader->FvLength - 1)))) {\r
+ //\r
+ // Now, one FVB has one type of BlockSize\r
+ //\r
+ Status = Fvb->GetBlockSize (Fvb, 0, &BlockSize, &NumberOfBlocks);\r
+ if (EFI_ERROR (Status)) {\r
+ continue;\r
+ }\r
+\r
+ if ((Address >= FvbBaseAddress) && (Address < (FvbBaseAddress + BlockSize * NumberOfBlocks))) {\r
*FvBlock = Fvb;\r
FvbHandle = HandleBuffer[Index];\r
break;\r
\r
@param FtwDevice The private data of FTW driver\r
@param FvBlock Fvb protocol instance\r
- @param Lba The block specified\r
\r
@return A BOOLEAN value indicating in boot block or not.\r
\r
BOOLEAN\r
IsBootBlock (\r
EFI_FTW_DEVICE *FtwDevice,\r
- EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r
- EFI_LBA Lba\r
+ EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock\r
)\r
{\r
EFI_STATUS Status;\r
return FALSE;\r
}\r
\r
- Status = gBS->LocateProtocol (&gEfiSwapAddressRangeProtocolGuid, NULL, (VOID **) &SarProtocol);\r
+ Status = FtwGetSarProtocol ((VOID **) &SarProtocol);\r
if (EFI_ERROR (Status)) {\r
return FALSE;\r
}\r
\r
/**\r
Copy the content of spare block to a boot block. Size is FTW_BLOCK_SIZE.\r
- Spare block is accessed by FTW working FVB protocol interface. LBA is 1.\r
- Target block is accessed by FvbBlock protocol interface. LBA is Lba.\r
+ Spare block is accessed by FTW working FVB protocol interface.\r
+ Target block is accessed by FvBlock protocol interface.\r
\r
FTW will do extra work on boot block update.\r
FTW should depend on a protocol of EFI_ADDRESS_RANGE_SWAP_PROTOCOL,\r
1. GetRangeLocation(), if the Range is inside the boot block, FTW know\r
that boot block will be update. It shall add a FLAG in the working block.\r
2. When spare block is ready,\r
- 3. SetSwapState(EFI_SWAPPED)\r
+ 3. SetSwapState(SWAPPED)\r
4. erasing boot block,\r
5. programming boot block until the boot block is ok.\r
6. SetSwapState(UNSWAPPED)\r
//\r
// Locate swap address range protocol\r
//\r
- Status = gBS->LocateProtocol (&gEfiSwapAddressRangeProtocolGuid, NULL, (VOID **) &SarProtocol);\r
+ Status = FtwGetSarProtocol ((VOID **) &SarProtocol);\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
BootLba = 0;\r
Ptr = Buffer;\r
for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ Count = FtwDevice->SpareBlockSize;\r
Status = BootFvb->Read (\r
BootFvb,\r
BootLba + Index,\r
//\r
Ptr = Buffer;\r
for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ Count = FtwDevice->SpareBlockSize;\r
Status = FtwDevice->FtwBackupFvb->Read (\r
FtwDevice->FtwBackupFvb,\r
FtwDevice->FtwSpareLba + Index,\r
return EFI_ABORTED;\r
}\r
//\r
- // Write memory buffer currenet spare block. Still top block.\r
+ // Write memory buffer to current spare block. Still top block.\r
//\r
Ptr = Buffer;\r
for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ Count = FtwDevice->SpareBlockSize;\r
Status = FtwDevice->FtwBackupFvb->Write (\r
FtwDevice->FtwBackupFvb,\r
FtwDevice->FtwSpareLba + Index,\r
}\r
\r
/**\r
- Copy the content of spare block to a target block. Size is FTW_BLOCK_SIZE.\r
- Spare block is accessed by FTW backup FVB protocol interface. LBA is 1.\r
- Target block is accessed by FvbBlock protocol interface. LBA is Lba.\r
+ Copy the content of spare block to a target block.\r
+ Spare block is accessed by FTW backup FVB protocol interface.\r
+ Target block is accessed by FvBlock protocol interface.\r
\r
\r
@param FtwDevice The private data of FTW driver\r
@param FvBlock FVB Protocol interface to access target block\r
@param Lba Lba of the target block\r
+ @param BlockSize The size of the block\r
+ @param NumberOfBlocks The number of consecutive blocks starting with Lba\r
\r
@retval EFI_SUCCESS Spare block content is copied to target block\r
@retval EFI_INVALID_PARAMETER Input parameter error\r
FlushSpareBlockToTargetBlock (\r
EFI_FTW_DEVICE *FtwDevice,\r
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r
- EFI_LBA Lba\r
+ EFI_LBA Lba,\r
+ UINTN BlockSize,\r
+ UINTN NumberOfBlocks\r
)\r
{\r
EFI_STATUS Status;\r
//\r
Ptr = Buffer;\r
for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ Count = FtwDevice->SpareBlockSize;\r
Status = FtwDevice->FtwBackupFvb->Read (\r
FtwDevice->FtwBackupFvb,\r
FtwDevice->FtwSpareLba + Index,\r
//\r
// Erase the target block\r
//\r
- Status = FtwEraseBlock (FtwDevice, FvBlock, Lba);\r
+ Status = FtwEraseBlock (FtwDevice, FvBlock, Lba, NumberOfBlocks);\r
if (EFI_ERROR (Status)) {\r
FreePool (Buffer);\r
return EFI_ABORTED;\r
}\r
//\r
- // Write memory buffer to block, using the FvbBlock protocol interface\r
+ // Write memory buffer to block, using the FvBlock protocol interface\r
//\r
Ptr = Buffer;\r
- for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ for (Index = 0; Index < NumberOfBlocks; Index += 1) {\r
+ Count = BlockSize;\r
Status = FvBlock->Write (FvBlock, Lba + Index, 0, &Count, Ptr);\r
if (EFI_ERROR (Status)) {\r
DEBUG ((EFI_D_ERROR, "Ftw: FVB Write block - %r\n", Status));\r
UINTN Count;\r
UINT8 *Ptr;\r
UINTN Index;\r
- EFI_LBA WorkSpaceLbaOffset;\r
\r
//\r
// Allocate a memory buffer\r
if (Buffer == NULL) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
+\r
//\r
// To guarantee that the WorkingBlockValid is set on spare block\r
//\r
//\r
FtwUpdateFvState (\r
FtwDevice->FtwBackupFvb,\r
- FtwDevice->FtwWorkSpaceLba,\r
- FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r
+ FtwDevice->SpareBlockSize,\r
+ FtwDevice->FtwSpareLba + FtwDevice->FtwWorkSpaceLbaInSpare,\r
+ FtwDevice->FtwWorkSpaceBaseInSpare + sizeof (EFI_GUID) + sizeof (UINT32),\r
WORKING_BLOCK_VALID\r
);\r
//\r
//\r
Ptr = Buffer;\r
for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ Count = FtwDevice->SpareBlockSize;\r
Status = FtwDevice->FtwBackupFvb->Read (\r
FtwDevice->FtwBackupFvb,\r
FtwDevice->FtwSpareLba + Index,\r
//\r
// Clear the CRC and STATE, copy data from spare to working block.\r
//\r
- WorkSpaceLbaOffset = FtwDevice->FtwWorkSpaceLba - FtwDevice->FtwWorkBlockLba;\r
- WorkingBlockHeader = (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *) (Buffer + (UINTN) WorkSpaceLbaOffset * FtwDevice->BlockSize + FtwDevice->FtwWorkSpaceBase);\r
+ WorkingBlockHeader = (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *) (Buffer + (UINTN) FtwDevice->FtwWorkSpaceLbaInSpare * FtwDevice->SpareBlockSize + FtwDevice->FtwWorkSpaceBaseInSpare);\r
InitWorkSpaceHeader (WorkingBlockHeader);\r
WorkingBlockHeader->WorkingBlockValid = FTW_ERASE_POLARITY;\r
WorkingBlockHeader->WorkingBlockInvalid = FTW_ERASE_POLARITY;\r
//\r
Status = FtwUpdateFvState (\r
FtwDevice->FtwFvBlock,\r
+ FtwDevice->WorkBlockSize,\r
FtwDevice->FtwWorkSpaceLba,\r
FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r
WORKING_BLOCK_INVALID\r
//\r
// Erase the working block\r
//\r
- Status = FtwEraseBlock (FtwDevice, FtwDevice->FtwFvBlock, FtwDevice->FtwWorkBlockLba);\r
+ Status = FtwEraseBlock (FtwDevice, FtwDevice->FtwFvBlock, FtwDevice->FtwWorkBlockLba, FtwDevice->NumberOfWorkBlock);\r
if (EFI_ERROR (Status)) {\r
FreePool (Buffer);\r
return EFI_ABORTED;\r
}\r
//\r
- // Write memory buffer to working block, using the FvbBlock protocol interface\r
+ // Write memory buffer to working block, using the FvBlock protocol interface\r
//\r
Ptr = Buffer;\r
- for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r
- Count = FtwDevice->BlockSize;\r
+ for (Index = 0; Index < FtwDevice->NumberOfWorkBlock; Index += 1) {\r
+ Count = FtwDevice->WorkBlockSize;\r
Status = FtwDevice->FtwFvBlock->Write (\r
FtwDevice->FtwFvBlock,\r
FtwDevice->FtwWorkBlockLba + Index,\r
//\r
Status = FtwUpdateFvState (\r
FtwDevice->FtwFvBlock,\r
+ FtwDevice->WorkBlockSize,\r
FtwDevice->FtwWorkSpaceLba,\r
FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r
WORKING_BLOCK_VALID\r
return EFI_ABORTED;\r
}\r
\r
+ FtwDevice->FtwWorkSpaceHeader->WorkingBlockInvalid = FTW_INVALID_STATE;\r
FtwDevice->FtwWorkSpaceHeader->WorkingBlockValid = FTW_VALID_STATE;\r
\r
return EFI_SUCCESS;\r
\r
\r
@param FvBlock FVB Protocol interface to access SrcBlock and DestBlock\r
+ @param BlockSize The size of the block\r
@param Lba Lba of a block\r
@param Offset Offset on the Lba\r
@param NewBit New value that will override the old value if it can be change\r
EFI_STATUS\r
FtwUpdateFvState (\r
IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r
+ IN UINTN BlockSize,\r
IN EFI_LBA Lba,\r
IN UINTN Offset,\r
IN UINT8 NewBit\r
UINT8 State;\r
UINTN Length;\r
\r
+ //\r
+ // Calculate the real Offset and Lba to write.\r
+ //\r
+ while (Offset >= BlockSize) {\r
+ Offset -= BlockSize;\r
+ Lba++;\r
+ }\r
+\r
//\r
// Read state from device, assume State is only one byte.\r
//\r
Offset = sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER);\r
\r
while (FtwHeader->Complete == FTW_VALID_STATE) {\r
- Offset += WRITE_TOTAL_SIZE (FtwHeader->NumberOfWrites, FtwHeader->PrivateDataSize);\r
+ Offset += FTW_WRITE_TOTAL_SIZE (FtwHeader->NumberOfWrites, FtwHeader->PrivateDataSize);\r
//\r
// If Offset exceed the FTW work space boudary, return error.\r
//\r
- if (Offset > FtwWorkSpaceSize) {\r
+ if (Offset >= FtwWorkSpaceSize) {\r
*FtwWriteHeader = FtwHeader;\r
return EFI_ABORTED;\r
}\r
FtwRecord++;\r
\r
if (FtwWriteHeader->PrivateDataSize != 0) {\r
- FtwRecord = (EFI_FAULT_TOLERANT_WRITE_RECORD *) ((UINTN) FtwRecord + FtwWriteHeader->PrivateDataSize);\r
+ FtwRecord = (EFI_FAULT_TOLERANT_WRITE_RECORD *) ((UINTN) FtwRecord + (UINTN) FtwWriteHeader->PrivateDataSize);\r
}\r
}\r
//\r
// also return the last record.\r
//\r
if (Index == FtwWriteHeader->NumberOfWrites) {\r
- *FtwWriteRecord = (EFI_FAULT_TOLERANT_WRITE_RECORD *) ((UINTN) FtwRecord - RECORD_SIZE (FtwWriteHeader->PrivateDataSize));\r
+ *FtwWriteRecord = (EFI_FAULT_TOLERANT_WRITE_RECORD *) ((UINTN) FtwRecord - FTW_RECORD_SIZE (FtwWriteHeader->PrivateDataSize));\r
return EFI_SUCCESS;\r
}\r
\r
Head = (UINT8 *) FtwHeader;\r
Ptr = (UINT8 *) FtwRecord;\r
\r
- Head += WRITE_TOTAL_SIZE (FtwHeader->NumberOfWrites - 1, FtwHeader->PrivateDataSize);\r
+ Head += FTW_WRITE_TOTAL_SIZE (FtwHeader->NumberOfWrites - 1, FtwHeader->PrivateDataSize);\r
return (BOOLEAN) (Head == Ptr);\r
}\r
\r
}\r
\r
Ptr = (UINT8 *) (*FtwRecord);\r
- Ptr -= RECORD_SIZE (FtwHeader->PrivateDataSize);\r
+ Ptr -= FTW_RECORD_SIZE (FtwHeader->PrivateDataSize);\r
*FtwRecord = (EFI_FAULT_TOLERANT_WRITE_RECORD *) Ptr;\r
return EFI_SUCCESS;\r
}\r
+\r
+/**\r
+ Allocate private data for FTW driver and initialize it.\r
+\r
+ @param[out] FtwData Pointer to the FTW device structure\r
+\r
+ @retval EFI_SUCCESS Initialize the FTW device successfully.\r
+ @retval EFI_OUT_OF_RESOURCES Allocate memory error\r
+ @retval EFI_INVALID_PARAMETER Workspace or Spare block does not exist\r
+\r
+**/\r
+EFI_STATUS\r
+InitFtwDevice (\r
+ OUT EFI_FTW_DEVICE **FtwData\r
+ )\r
+{\r
+ EFI_FTW_DEVICE *FtwDevice;\r
+\r
+ //\r
+ // Allocate private data of this driver,\r
+ // Including the FtwWorkSpace[FTW_WORK_SPACE_SIZE].\r
+ //\r
+ FtwDevice = AllocateZeroPool (sizeof (EFI_FTW_DEVICE) + PcdGet32 (PcdFlashNvStorageFtwWorkingSize));\r
+ if (FtwDevice == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ //\r
+ // Initialize other parameters, and set WorkSpace as FTW_ERASED_BYTE.\r
+ //\r
+ FtwDevice->WorkSpaceLength = (UINTN) PcdGet32 (PcdFlashNvStorageFtwWorkingSize);\r
+ FtwDevice->SpareAreaLength = (UINTN) PcdGet32 (PcdFlashNvStorageFtwSpareSize);\r
+ if ((FtwDevice->WorkSpaceLength == 0) || (FtwDevice->SpareAreaLength == 0)) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Workspace or Spare block does not exist!\n"));\r
+ FreePool (FtwDevice);\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ FtwDevice->Signature = FTW_DEVICE_SIGNATURE;\r
+ FtwDevice->FtwFvBlock = NULL;\r
+ FtwDevice->FtwBackupFvb = NULL;\r
+ FtwDevice->FtwWorkSpaceLba = (EFI_LBA) (-1);\r
+ FtwDevice->FtwSpareLba = (EFI_LBA) (-1);\r
+\r
+ FtwDevice->WorkSpaceAddress = (EFI_PHYSICAL_ADDRESS) PcdGet64 (PcdFlashNvStorageFtwWorkingBase64);\r
+ if (FtwDevice->WorkSpaceAddress == 0) {\r
+ FtwDevice->WorkSpaceAddress = (EFI_PHYSICAL_ADDRESS) PcdGet32 (PcdFlashNvStorageFtwWorkingBase);\r
+ }\r
+\r
+ FtwDevice->SpareAreaAddress = (EFI_PHYSICAL_ADDRESS) PcdGet64 (PcdFlashNvStorageFtwSpareBase64);\r
+ if (FtwDevice->SpareAreaAddress == 0) {\r
+ FtwDevice->SpareAreaAddress = (EFI_PHYSICAL_ADDRESS) PcdGet32 (PcdFlashNvStorageFtwSpareBase);\r
+ }\r
+\r
+ *FtwData = FtwDevice;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+ Find the proper Firmware Volume Block protocol for FTW operation.\r
+\r
+ @param[in, out] FtwDevice Pointer to the FTW device structure\r
+\r
+ @retval EFI_SUCCESS Find the FVB protocol successfully.\r
+ @retval EFI_NOT_FOUND No proper FVB protocol was found.\r
+ @retval EFI_ABORTED Some data can not be got or be invalid.\r
+\r
+**/\r
+EFI_STATUS\r
+FindFvbForFtw (\r
+ IN OUT EFI_FTW_DEVICE *FtwDevice\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE *HandleBuffer;\r
+ UINTN HandleCount;\r
+ UINTN Index;\r
+ EFI_PHYSICAL_ADDRESS FvbBaseAddress;\r
+ EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;\r
+ EFI_FVB_ATTRIBUTES_2 Attributes;\r
+ UINT32 LbaIndex;\r
+ UINTN BlockSize;\r
+ UINTN NumberOfBlocks;\r
+\r
+ HandleBuffer = NULL;\r
+\r
+ //\r
+ // Get all FVB handle.\r
+ //\r
+ Status = GetFvbCountAndBuffer (&HandleCount, &HandleBuffer);\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ //\r
+ // Get the FVB to access variable store\r
+ //\r
+ Fvb = NULL;\r
+ for (Index = 0; Index < HandleCount; Index += 1) {\r
+ Status = FtwGetFvbByHandle (HandleBuffer[Index], &Fvb);\r
+ if (EFI_ERROR (Status)) {\r
+ Status = EFI_NOT_FOUND;\r
+ break;\r
+ }\r
+\r
+ //\r
+ // Ensure this FVB protocol support Write operation.\r
+ //\r
+ Status = Fvb->GetAttributes (Fvb, &Attributes);\r
+ if (EFI_ERROR (Status) || ((Attributes & EFI_FVB2_WRITE_STATUS) == 0)) {\r
+ continue;\r
+ }\r
+ //\r
+ // Compare the address and select the right one\r
+ //\r
+ Status = Fvb->GetPhysicalAddress (Fvb, &FvbBaseAddress);\r
+ if (EFI_ERROR (Status)) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // Now, one FVB has one type of BlockSize.\r
+ //\r
+ Status = Fvb->GetBlockSize (Fvb, 0, &BlockSize, &NumberOfBlocks);\r
+ if (EFI_ERROR (Status)) {\r
+ continue;\r
+ }\r
+\r
+ if ((FtwDevice->FtwFvBlock == NULL) && (FtwDevice->WorkSpaceAddress >= FvbBaseAddress) &&\r
+ ((FtwDevice->WorkSpaceAddress + FtwDevice->WorkSpaceLength) <= (FvbBaseAddress + BlockSize * NumberOfBlocks))) {\r
+ FtwDevice->FtwFvBlock = Fvb;\r
+ //\r
+ // To get the LBA of work space\r
+ //\r
+ for (LbaIndex = 1; LbaIndex <= NumberOfBlocks; LbaIndex += 1) {\r
+ if ((FtwDevice->WorkSpaceAddress >= (FvbBaseAddress + BlockSize * (LbaIndex - 1)))\r
+ && (FtwDevice->WorkSpaceAddress < (FvbBaseAddress + BlockSize * LbaIndex))) {\r
+ FtwDevice->FtwWorkSpaceLba = LbaIndex - 1;\r
+ //\r
+ // Get the Work space size and Base(Offset)\r
+ //\r
+ FtwDevice->FtwWorkSpaceSize = FtwDevice->WorkSpaceLength;\r
+ FtwDevice->WorkBlockSize = BlockSize;\r
+ FtwDevice->FtwWorkSpaceBase = (UINTN) (FtwDevice->WorkSpaceAddress - (FvbBaseAddress + FtwDevice->WorkBlockSize * (LbaIndex - 1)));\r
+ FtwDevice->NumberOfWorkSpaceBlock = FTW_BLOCKS (FtwDevice->FtwWorkSpaceBase + FtwDevice->FtwWorkSpaceSize, FtwDevice->WorkBlockSize);\r
+ if (FtwDevice->FtwWorkSpaceSize >= FtwDevice->WorkBlockSize) {\r
+ //\r
+ // Check the alignment of work space address and length, they should be block size aligned when work space size is larger than one block size.\r
+ //\r
+ if (((FtwDevice->WorkSpaceAddress & (FtwDevice->WorkBlockSize - 1)) != 0) ||\r
+ ((FtwDevice->WorkSpaceLength & (FtwDevice->WorkBlockSize - 1)) != 0)) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Work space address or length is not block size aligned when work space size is larger than one block size\n"));\r
+ FreePool (HandleBuffer);\r
+ ASSERT (FALSE);\r
+ return EFI_ABORTED;\r
+ }\r
+ } else if ((FtwDevice->FtwWorkSpaceBase + FtwDevice->FtwWorkSpaceSize) > FtwDevice->WorkBlockSize) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: The work space range should not span blocks when work space size is less than one block size\n"));\r
+ FreePool (HandleBuffer);\r
+ ASSERT (FALSE);\r
+ return EFI_ABORTED;\r
+ }\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ if ((FtwDevice->FtwBackupFvb == NULL) && (FtwDevice->SpareAreaAddress >= FvbBaseAddress) &&\r
+ ((FtwDevice->SpareAreaAddress + FtwDevice->SpareAreaLength) <= (FvbBaseAddress + BlockSize * NumberOfBlocks))) {\r
+ FtwDevice->FtwBackupFvb = Fvb;\r
+ //\r
+ // To get the LBA of spare\r
+ //\r
+ for (LbaIndex = 1; LbaIndex <= NumberOfBlocks; LbaIndex += 1) {\r
+ if ((FtwDevice->SpareAreaAddress >= (FvbBaseAddress + BlockSize * (LbaIndex - 1)))\r
+ && (FtwDevice->SpareAreaAddress < (FvbBaseAddress + BlockSize * LbaIndex))) {\r
+ //\r
+ // Get the NumberOfSpareBlock and BlockSize\r
+ //\r
+ FtwDevice->FtwSpareLba = LbaIndex - 1;\r
+ FtwDevice->SpareBlockSize = BlockSize;\r
+ FtwDevice->NumberOfSpareBlock = FtwDevice->SpareAreaLength / FtwDevice->SpareBlockSize;\r
+ //\r
+ // Check the range of spare area to make sure that it's in FV range\r
+ //\r
+ if ((FtwDevice->FtwSpareLba + FtwDevice->NumberOfSpareBlock) > NumberOfBlocks) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Spare area is out of FV range\n"));\r
+ FreePool (HandleBuffer);\r
+ ASSERT (FALSE);\r
+ return EFI_ABORTED;\r
+ }\r
+ //\r
+ // Check the alignment of spare area address and length, they should be block size aligned\r
+ //\r
+ if (((FtwDevice->SpareAreaAddress & (FtwDevice->SpareBlockSize - 1)) != 0) ||\r
+ ((FtwDevice->SpareAreaLength & (FtwDevice->SpareBlockSize - 1)) != 0)) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Spare area address or length is not block size aligned\n"));\r
+ FreePool (HandleBuffer);\r
+ //\r
+ // Report Status Code EFI_SW_EC_ABORTED.\r
+ //\r
+ REPORT_STATUS_CODE ((EFI_ERROR_CODE | EFI_ERROR_UNRECOVERED), (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_EC_ABORTED));\r
+ ASSERT (FALSE);\r
+ CpuDeadLoop ();\r
+ }\r
+ break;\r
+ }\r
+ }\r
+ }\r
+ }\r
+ FreePool (HandleBuffer);\r
+\r
+ if ((FtwDevice->FtwBackupFvb == NULL) || (FtwDevice->FtwFvBlock == NULL) ||\r
+ (FtwDevice->FtwWorkSpaceLba == (EFI_LBA) (-1)) || (FtwDevice->FtwSpareLba == (EFI_LBA) (-1))) {\r
+ return EFI_ABORTED;\r
+ }\r
+ DEBUG ((EFI_D_INFO, "Ftw: FtwWorkSpaceLba - 0x%lx, WorkBlockSize - 0x%x, FtwWorkSpaceBase - 0x%x\n", FtwDevice->FtwWorkSpaceLba, FtwDevice->WorkBlockSize, FtwDevice->FtwWorkSpaceBase));\r
+ DEBUG ((EFI_D_INFO, "Ftw: FtwSpareLba - 0x%lx, SpareBlockSize - 0x%x\n", FtwDevice->FtwSpareLba, FtwDevice->SpareBlockSize));\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+ Initialization for Fault Tolerant Write protocol.\r
+\r
+ @param[in, out] FtwDevice Pointer to the FTW device structure\r
+\r
+ @retval EFI_SUCCESS Initialize the FTW protocol successfully.\r
+ @retval EFI_NOT_FOUND No proper FVB protocol was found.\r
+\r
+**/\r
+EFI_STATUS\r
+InitFtwProtocol (\r
+ IN OUT EFI_FTW_DEVICE *FtwDevice\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;\r
+ EFI_FAULT_TOLERANT_WRITE_HEADER *FtwHeader;\r
+ UINTN Offset;\r
+ EFI_HANDLE FvbHandle;\r
+ EFI_LBA WorkSpaceLbaOffset;\r
+\r
+ //\r
+ // Find the right SMM Fvb protocol instance for FTW.\r
+ //\r
+ Status = FindFvbForFtw (FtwDevice);\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ //\r
+ // Calculate the start LBA of working block.\r
+ //\r
+ if (FtwDevice->FtwWorkSpaceSize >= FtwDevice->WorkBlockSize) {\r
+ //\r
+ // Working block is a standalone area which only contains working space.\r
+ //\r
+ FtwDevice->NumberOfWorkBlock = FtwDevice->NumberOfWorkSpaceBlock;\r
+ } else {\r
+ //\r
+ // Working block is an area which\r
+ // contains working space in its last block and has the same size as spare\r
+ // block, unless there are not enough blocks before the block that contains\r
+ // working space.\r
+ //\r
+ FtwDevice->NumberOfWorkBlock = (UINTN) (FtwDevice->FtwWorkSpaceLba + FtwDevice->NumberOfWorkSpaceBlock);\r
+ while (FtwDevice->NumberOfWorkBlock * FtwDevice->WorkBlockSize > FtwDevice->SpareAreaLength) {\r
+ FtwDevice->NumberOfWorkBlock--;\r
+ }\r
+ }\r
+ FtwDevice->FtwWorkBlockLba = FtwDevice->FtwWorkSpaceLba + FtwDevice->NumberOfWorkSpaceBlock - FtwDevice->NumberOfWorkBlock;\r
+ DEBUG ((EFI_D_INFO, "Ftw: NumberOfWorkBlock - 0x%x, FtwWorkBlockLba - 0x%lx\n", FtwDevice->NumberOfWorkBlock, FtwDevice->FtwWorkBlockLba));\r
+\r
+ //\r
+ // Calcualte the LBA and base of work space in spare block.\r
+ // Note: Do not assume Spare Block and Work Block have same block size.\r
+ //\r
+ WorkSpaceLbaOffset = FtwDevice->FtwWorkSpaceLba - FtwDevice->FtwWorkBlockLba;\r
+ FtwDevice->FtwWorkSpaceLbaInSpare = (EFI_LBA) (((UINTN) WorkSpaceLbaOffset * FtwDevice->WorkBlockSize + FtwDevice->FtwWorkSpaceBase) / FtwDevice->SpareBlockSize);\r
+ FtwDevice->FtwWorkSpaceBaseInSpare = ((UINTN) WorkSpaceLbaOffset * FtwDevice->WorkBlockSize + FtwDevice->FtwWorkSpaceBase) % FtwDevice->SpareBlockSize;\r
+ DEBUG ((EFI_D_INFO, "Ftw: WorkSpaceLbaInSpare - 0x%lx, WorkSpaceBaseInSpare - 0x%x\n", FtwDevice->FtwWorkSpaceLbaInSpare, FtwDevice->FtwWorkSpaceBaseInSpare));\r
+\r
+ //\r
+ // Initialize other parameters, and set WorkSpace as FTW_ERASED_BYTE.\r
+ //\r
+ FtwDevice->FtwWorkSpace = (UINT8 *) (FtwDevice + 1);\r
+ FtwDevice->FtwWorkSpaceHeader = (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *) FtwDevice->FtwWorkSpace;\r
+\r
+ FtwDevice->FtwLastWriteHeader = NULL;\r
+ FtwDevice->FtwLastWriteRecord = NULL;\r
+\r
+ InitializeLocalWorkSpaceHeader ();\r
+\r
+ //\r
+ // Refresh the working space data from working block\r
+ //\r
+ Status = WorkSpaceRefresh (FtwDevice);\r
+ ASSERT_EFI_ERROR (Status);\r
+ //\r
+ // If the working block workspace is not valid, try the spare block\r
+ //\r
+ if (!IsValidWorkSpace (FtwDevice->FtwWorkSpaceHeader)) {\r
+ //\r
+ // Read from spare block\r
+ //\r
+ Status = ReadWorkSpaceData (\r
+ FtwDevice->FtwBackupFvb,\r
+ FtwDevice->SpareBlockSize,\r
+ FtwDevice->FtwSpareLba + FtwDevice->FtwWorkSpaceLbaInSpare,\r
+ FtwDevice->FtwWorkSpaceBaseInSpare,\r
+ FtwDevice->FtwWorkSpaceSize,\r
+ FtwDevice->FtwWorkSpace\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // If spare block is valid, then replace working block content.\r
+ //\r
+ if (IsValidWorkSpace (FtwDevice->FtwWorkSpaceHeader)) {\r
+ Status = FlushSpareBlockToWorkingBlock (FtwDevice);\r
+ DEBUG ((EFI_D_INFO, "Ftw: Restart working block update in %a() - %r\n",\r
+ __FUNCTION__, Status));\r
+ FtwAbort (&FtwDevice->FtwInstance);\r
+ //\r
+ // Refresh work space.\r
+ //\r
+ Status = WorkSpaceRefresh (FtwDevice);\r
+ ASSERT_EFI_ERROR (Status);\r
+ } else {\r
+ DEBUG ((EFI_D_INFO,\r
+ "Ftw: Both working and spare blocks are invalid, init workspace\n"));\r
+ //\r
+ // If both are invalid, then initialize work space.\r
+ //\r
+ SetMem (\r
+ FtwDevice->FtwWorkSpace,\r
+ FtwDevice->FtwWorkSpaceSize,\r
+ FTW_ERASED_BYTE\r
+ );\r
+ InitWorkSpaceHeader (FtwDevice->FtwWorkSpaceHeader);\r
+ //\r
+ // Initialize the work space\r
+ //\r
+ Status = FtwReclaimWorkSpace (FtwDevice, FALSE);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+ }\r
+ //\r
+ // If the FtwDevice->FtwLastWriteRecord is 1st record of write header &&\r
+ // (! SpareComplete) THEN call Abort().\r
+ //\r
+ if ((FtwDevice->FtwLastWriteHeader->HeaderAllocated == FTW_VALID_STATE) &&\r
+ (FtwDevice->FtwLastWriteRecord->SpareComplete != FTW_VALID_STATE) &&\r
+ IsFirstRecordOfWrites (FtwDevice->FtwLastWriteHeader, FtwDevice->FtwLastWriteRecord)\r
+ ) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Init.. find first record not SpareCompleted, abort()\n"));\r
+ FtwAbort (&FtwDevice->FtwInstance);\r
+ }\r
+ //\r
+ // If Header is incompleted and the last record has completed, then\r
+ // call Abort() to set the Header->Complete FLAG.\r
+ //\r
+ if ((FtwDevice->FtwLastWriteHeader->Complete != FTW_VALID_STATE) &&\r
+ (FtwDevice->FtwLastWriteRecord->DestinationComplete == FTW_VALID_STATE) &&\r
+ IsLastRecordOfWrites (FtwDevice->FtwLastWriteHeader, FtwDevice->FtwLastWriteRecord)\r
+ ) {\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Init.. find last record completed but header not, abort()\n"));\r
+ FtwAbort (&FtwDevice->FtwInstance);\r
+ }\r
+ //\r
+ // To check the workspace buffer following last Write header/records is EMPTY or not.\r
+ // If it's not EMPTY, FTW also need to call reclaim().\r
+ //\r
+ FtwHeader = FtwDevice->FtwLastWriteHeader;\r
+ Offset = (UINT8 *) FtwHeader - FtwDevice->FtwWorkSpace;\r
+ if (FtwDevice->FtwWorkSpace[Offset] != FTW_ERASED_BYTE) {\r
+ Offset += FTW_WRITE_TOTAL_SIZE (FtwHeader->NumberOfWrites, FtwHeader->PrivateDataSize);\r
+ }\r
+\r
+ if (!IsErasedFlashBuffer (FtwDevice->FtwWorkSpace + Offset, FtwDevice->FtwWorkSpaceSize - Offset)) {\r
+ Status = FtwReclaimWorkSpace (FtwDevice, TRUE);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ //\r
+ // Restart if it's boot block\r
+ //\r
+ if ((FtwDevice->FtwLastWriteHeader->Complete != FTW_VALID_STATE) &&\r
+ (FtwDevice->FtwLastWriteRecord->SpareComplete == FTW_VALID_STATE)\r
+ ) {\r
+ if (FtwDevice->FtwLastWriteRecord->BootBlockUpdate == FTW_VALID_STATE) {\r
+ Status = FlushSpareBlockToBootBlock (FtwDevice);\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Restart boot block update - %r\n", Status));\r
+ ASSERT_EFI_ERROR (Status);\r
+ FtwAbort (&FtwDevice->FtwInstance);\r
+ } else {\r
+ //\r
+ // if (SpareCompleted) THEN Restart to fault tolerant write.\r
+ //\r
+ FvbHandle = NULL;\r
+ FvbHandle = GetFvbByAddress ((EFI_PHYSICAL_ADDRESS) (UINTN) ((INT64) FtwDevice->SpareAreaAddress + FtwDevice->FtwLastWriteRecord->RelativeOffset), &Fvb);\r
+ if (FvbHandle != NULL) {\r
+ Status = FtwRestart (&FtwDevice->FtwInstance, FvbHandle);\r
+ DEBUG ((EFI_D_ERROR, "Ftw: Restart last write - %r\n", Status));\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+ FtwAbort (&FtwDevice->FtwInstance);\r
+ }\r
+ }\r
+ //\r
+ // Hook the protocol API\r
+ //\r
+ FtwDevice->FtwInstance.GetMaxBlockSize = FtwGetMaxBlockSize;\r
+ FtwDevice->FtwInstance.Allocate = FtwAllocate;\r
+ FtwDevice->FtwInstance.Write = FtwWrite;\r
+ FtwDevice->FtwInstance.Restart = FtwRestart;\r
+ FtwDevice->FtwInstance.Abort = FtwAbort;\r
+ FtwDevice->FtwInstance.GetLastWrite = FtwGetLastWrite;\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
projects / mirror_edk2.git / blobdiff