diff options
Diffstat (limited to 'SecurityPkg/VariableAuthenticated/RuntimeDxe/Reclaim.c')
| -rw-r--r-- | SecurityPkg/VariableAuthenticated/RuntimeDxe/Reclaim.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/SecurityPkg/VariableAuthenticated/RuntimeDxe/Reclaim.c b/SecurityPkg/VariableAuthenticated/RuntimeDxe/Reclaim.c deleted file mode 100644 index d79cd36b0d..0000000000 --- a/SecurityPkg/VariableAuthenticated/RuntimeDxe/Reclaim.c +++ /dev/null @@ -1,161 +0,0 @@ -/** @file
- Handles non-volatile variable store garbage collection, using FTW
- (Fault Tolerant Write) protocol.
-
-Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "Variable.h"
-
-/**
- Gets LBA of block and offset by given address.
-
- This function gets the Logical Block Address (LBA) of a firmware
- volume block containing the given address, and the offset of the
- address on the block.
-
- @param Address Address which should be contained
- by returned FVB handle.
- @param Lba Pointer to LBA for output.
- @param Offset Pointer to offset for output.
-
- @retval EFI_SUCCESS LBA and offset successfully returned.
- @retval EFI_NOT_FOUND Fail to find FVB handle by address.
- @retval EFI_ABORTED Fail to find valid LBA and offset.
-
-**/
-EFI_STATUS
-GetLbaAndOffsetByAddress (
- IN EFI_PHYSICAL_ADDRESS Address,
- OUT EFI_LBA *Lba,
- OUT UINTN *Offset
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS FvbBaseAddress;
- EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
- EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
- EFI_FV_BLOCK_MAP_ENTRY *FvbMapEntry;
- UINT32 LbaIndex;
-
- *Lba = (EFI_LBA) (-1);
- *Offset = 0;
- Fvb = NULL;
-
- //
- // Get the proper FVB protocol.
- //
- Status = GetFvbInfoByAddress (Address, NULL, &Fvb);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Get the Base Address of FV.
- //
- Status = Fvb->GetPhysicalAddress (Fvb, &FvbBaseAddress);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) FvbBaseAddress);
-
- //
- // Get the (LBA, Offset) of Address.
- //
- if ((FwVolHeader->FvLength) > (FwVolHeader->HeaderLength)) {
- //
- // BUGBUG: Assume one FV has one type of BlockLength.
- //
- FvbMapEntry = &FwVolHeader->BlockMap[0];
- for (LbaIndex = 1; LbaIndex <= FvbMapEntry->NumBlocks; LbaIndex += 1) {
- if (Address < (FvbBaseAddress + FvbMapEntry->Length * LbaIndex)) {
- //
- // Found the (Lba, Offset).
- //
- *Lba = LbaIndex - 1;
- *Offset = (UINTN) (Address - (FvbBaseAddress + FvbMapEntry->Length * (LbaIndex - 1)));
- return EFI_SUCCESS;
- }
- }
- }
-
- return EFI_ABORTED;
-}
-
-/**
- Writes a buffer to variable storage space, in the working block.
-
- This function writes a buffer to variable storage space into a firmware
- volume block device. The destination is specified by parameter
- VariableBase. Fault Tolerant Write protocol is used for writing.
-
- @param VariableBase Base address of variable to write
- @param VariableBuffer Point to the variable data buffer.
-
- @retval EFI_SUCCESS The function completed successfully.
- @retval EFI_NOT_FOUND Fail to locate Fault Tolerant Write protocol.
- @retval EFI_ABORTED The function could not complete successfully.
-
-**/
-EFI_STATUS
-FtwVariableSpace (
- IN EFI_PHYSICAL_ADDRESS VariableBase,
- IN VARIABLE_STORE_HEADER *VariableBuffer
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE FvbHandle;
- EFI_LBA VarLba;
- UINTN VarOffset;
- UINTN FtwBufferSize;
- EFI_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol;
-
- //
- // Locate fault tolerant write protocol.
- //
- Status = GetFtwProtocol((VOID **) &FtwProtocol);
- if (EFI_ERROR (Status)) {
- return EFI_NOT_FOUND;
- }
- //
- // Locate Fvb handle by address.
- //
- Status = GetFvbInfoByAddress (VariableBase, &FvbHandle, NULL);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Get LBA and Offset by address.
- //
- Status = GetLbaAndOffsetByAddress (VariableBase, &VarLba, &VarOffset);
- if (EFI_ERROR (Status)) {
- return EFI_ABORTED;
- }
-
- FtwBufferSize = ((VARIABLE_STORE_HEADER *) ((UINTN) VariableBase))->Size;
- ASSERT (FtwBufferSize == VariableBuffer->Size);
-
- //
- // FTW write record.
- //
- Status = FtwProtocol->Write (
- FtwProtocol,
- VarLba, // LBA
- VarOffset, // Offset
- FtwBufferSize, // NumBytes
- NULL, // PrivateData NULL
- FvbHandle, // Fvb Handle
- (VOID *) VariableBuffer // write buffer
- );
-
- return Status;
-}
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