diff options
Diffstat (limited to 'EdkModulePkg/Universal/Variable/RuntimeDxe/reclaim.c')
| -rw-r--r-- | EdkModulePkg/Universal/Variable/RuntimeDxe/reclaim.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/EdkModulePkg/Universal/Variable/RuntimeDxe/reclaim.c b/EdkModulePkg/Universal/Variable/RuntimeDxe/reclaim.c deleted file mode 100644 index 4c7249046c..0000000000 --- a/EdkModulePkg/Universal/Variable/RuntimeDxe/reclaim.c +++ /dev/null @@ -1,241 +0,0 @@ -/*++
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. 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.
-
-Module Name:
-
- reclaim.c
-
-Abstract:
-
- Handles non-volatile variable store garbage collection, using FTW
- (Fault Tolerant Write) protocol.
-
-Revision History
-
---*/
-
-#include "reclaim.h"
-#include "Common/Variable.h"
-
-EFI_STATUS
-GetFvbHandleByAddress (
- IN EFI_PHYSICAL_ADDRESS Address,
- OUT EFI_HANDLE *FvbHandle
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE *HandleBuffer;
- UINTN HandleCount;
- UINTN Index;
- EFI_PHYSICAL_ADDRESS FvbBaseAddress;
- EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
- EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
-
- *FvbHandle = NULL;
- //
- // Locate all handles of Fvb protocol
- //
- Status = gBS->LocateHandleBuffer (
- ByProtocol,
- &gEfiFirmwareVolumeBlockProtocolGuid,
- NULL,
- &HandleCount,
- &HandleBuffer
- );
- if (EFI_ERROR (Status)) {
- return EFI_NOT_FOUND;
- }
- //
- // Get the FVB to access variable store
- //
- for (Index = 0; Index < HandleCount; Index += 1) {
- Status = gBS->HandleProtocol (
- HandleBuffer[Index],
- &gEfiFirmwareVolumeBlockProtocolGuid,
- (VOID **) &Fvb
- );
- if (EFI_ERROR (Status)) {
- Status = EFI_NOT_FOUND;
- break;
- }
- //
- // Compare the address and select the right one
- //
- Status = Fvb->GetPhysicalAddress (Fvb, &FvbBaseAddress);
- if (EFI_ERROR (Status)) {
- continue;
- }
-
- FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) FvbBaseAddress);
- if ((Address >= FvbBaseAddress) && (Address <= (FvbBaseAddress + FwVolHeader->FvLength))) {
- *FvbHandle = HandleBuffer[Index];
- Status = EFI_SUCCESS;
- break;
- }
- }
-
- FreePool (HandleBuffer);
- return Status;
-}
-
-STATIC
-EFI_STATUS
-GetLbaAndOffsetByAddress (
- IN EFI_PHYSICAL_ADDRESS Address,
- OUT EFI_LBA *Lba,
- OUT UINTN *Offset
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE FvbHandle;
- 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;
-
- //
- // Get the proper FVB
- //
- Status = GetFvbHandleByAddress (Address, &FvbHandle);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = gBS->HandleProtocol (
- FvbHandle,
- &gEfiFirmwareVolumeBlockProtocolGuid,
- (VOID **) &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 ((Address >= FvbBaseAddress) && (Address <= (FvbBaseAddress + FwVolHeader->FvLength))) {
- if ((FwVolHeader->FvLength) > (FwVolHeader->HeaderLength)) {
- //
- // BUGBUG: Assume one FV has one type of BlockLength
- //
- FvbMapEntry = &FwVolHeader->FvBlockMap[0];
- for (LbaIndex = 1; LbaIndex <= FvbMapEntry->NumBlocks; LbaIndex += 1) {
- if (Address < (FvbBaseAddress + FvbMapEntry->BlockLength * LbaIndex)) {
- //
- // Found the (Lba, Offset)
- //
- *Lba = LbaIndex - 1;
- *Offset = (UINTN) (Address - (FvbBaseAddress + FvbMapEntry->BlockLength * (LbaIndex - 1)));
- return EFI_SUCCESS;
- }
- }
- }
- }
-
- return EFI_ABORTED;
-}
-
-EFI_STATUS
-FtwVariableSpace (
- IN EFI_PHYSICAL_ADDRESS VariableBase,
- IN UINT8 *Buffer,
- IN UINTN BufferSize
- )
-/*++
-
-Routine Description:
- Write a buffer to Variable space, in the working block.
-
-Arguments:
- FvbHandle - Indicates a handle to FVB to access variable store
- Buffer - Point to the input buffer
- BufferSize - The number of bytes of the input Buffer
-
-Returns:
- EFI_SUCCESS - The function completed successfully
- EFI_ABORTED - The function could not complete successfully
- EFI_NOT_FOUND - Locate FVB protocol by handle fails
-
---*/
-{
- EFI_STATUS Status;
- EFI_HANDLE FvbHandle;
- EFI_FTW_LITE_PROTOCOL *FtwLiteProtocol;
- EFI_LBA VarLba;
- UINTN VarOffset;
- UINT8 *FtwBuffer;
- UINTN FtwBufferSize;
-
- //
- // Locate fault tolerant write protocol
- //
- Status = gBS->LocateProtocol (
- &gEfiFaultTolerantWriteLiteProtocolGuid,
- NULL,
- (VOID **) &FtwLiteProtocol
- );
- if (EFI_ERROR (Status)) {
- return EFI_NOT_FOUND;
- }
- //
- // Locate Fvb handle by address
- //
- Status = GetFvbHandleByAddress (VariableBase, &FvbHandle);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Get LBA and Offset by address
- //
- Status = GetLbaAndOffsetByAddress (VariableBase, &VarLba, &VarOffset);
- if (EFI_ERROR (Status)) {
- return EFI_ABORTED;
- }
- //
- // Prepare for the variable data
- //
- FtwBufferSize = ((VARIABLE_STORE_HEADER *) ((UINTN) VariableBase))->Size;
- FtwBuffer = AllocateRuntimePool (FtwBufferSize);
- if (FtwBuffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- SetMem (FtwBuffer, FtwBufferSize, (UINT8) 0xff);
- CopyMem (FtwBuffer, Buffer, BufferSize);
-
- //
- // FTW write record
- //
- Status = FtwLiteProtocol->Write (
- FtwLiteProtocol,
- FvbHandle,
- VarLba, // LBA
- VarOffset, // Offset
- &FtwBufferSize, // NumBytes,
- FtwBuffer
- );
-
- FreePool (FtwBuffer);
- return Status;
-}
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