diff options
Diffstat (limited to 'EdkModulePkg/Core/Pei/FwVol/FwVol.c')
| -rw-r--r-- | EdkModulePkg/Core/Pei/FwVol/FwVol.c | 474 |
1 files changed, 0 insertions, 474 deletions
diff --git a/EdkModulePkg/Core/Pei/FwVol/FwVol.c b/EdkModulePkg/Core/Pei/FwVol/FwVol.c deleted file mode 100644 index d06590cd98..0000000000 --- a/EdkModulePkg/Core/Pei/FwVol/FwVol.c +++ /dev/null @@ -1,474 +0,0 @@ -/*++
-
-Copyright (c) 2006, 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:
-
- FwVol.c
-
-Abstract:
-
- Pei Core Firmware File System service routines.
-
---*/
-
-#include <PeiMain.h>
-
-#define GETOCCUPIEDSIZE(ActualSize, Alignment) \
- (ActualSize) + (((Alignment) - ((ActualSize) & ((Alignment) - 1))) & ((Alignment) - 1))
-
-STATIC
-EFI_FFS_FILE_STATE
-GetFileState(
- IN UINT8 ErasePolarity,
- IN EFI_FFS_FILE_HEADER *FfsHeader
- )
-/*++
-
-Routine Description:
-
- Returns the highest bit set of the State field
-
-Arguments:
-
- ErasePolarity - Erase Polarity as defined by EFI_FVB_ERASE_POLARITY
- in the Attributes field.
- FfsHeader - Pointer to FFS File Header.
-
-Returns:
- Returns the highest bit in the State field
-
---*/
-{
- EFI_FFS_FILE_STATE FileState;
- EFI_FFS_FILE_STATE HighestBit;
-
- FileState = FfsHeader->State;
-
- if (ErasePolarity != 0) {
- FileState = (EFI_FFS_FILE_STATE)~FileState;
- }
-
- HighestBit = 0x80;
- while (HighestBit != 0 && (HighestBit & FileState) == 0) {
- HighestBit >>= 1;
- }
-
- return HighestBit;
-}
-
-STATIC
-UINT8
-CalculateHeaderChecksum (
- IN EFI_FFS_FILE_HEADER *FileHeader
- )
-/*++
-
-Routine Description:
-
- Calculates the checksum of the header of a file.
-
-Arguments:
-
- FileHeader - Pointer to FFS File Header.
-
-Returns:
- Checksum of the header.
-
- The header is zero byte checksum.
- - Zero means the header is good.
- - Non-zero means the header is bad.
-
-
-Bugbug: For PEI performance reason, we comments this code at this time.
---*/
-{
- UINT8 *ptr;
- UINTN Index;
- UINT8 Sum;
-
- Sum = 0;
- ptr = (UINT8 *)FileHeader;
-
- for (Index = 0; Index < sizeof(EFI_FFS_FILE_HEADER) - 3; Index += 4) {
- Sum = (UINT8)(Sum + ptr[Index]);
- Sum = (UINT8)(Sum + ptr[Index+1]);
- Sum = (UINT8)(Sum + ptr[Index+2]);
- Sum = (UINT8)(Sum + ptr[Index+3]);
- }
-
- for (; Index < sizeof(EFI_FFS_FILE_HEADER); Index++) {
- Sum = (UINT8)(Sum + ptr[Index]);
- }
-
- //
- // State field (since this indicates the different state of file).
- //
- Sum = (UINT8)(Sum - FileHeader->State);
- //
- // Checksum field of the file is not part of the header checksum.
- //
- Sum = (UINT8)(Sum - FileHeader->IntegrityCheck.Checksum.File);
-
- return Sum;
-}
-
-STATIC
-EFI_STATUS
-PeiFfsFindNextFileEx (
- IN EFI_FV_FILETYPE SearchType,
- IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,
- IN OUT EFI_FFS_FILE_HEADER **FileHeader,
- IN BOOLEAN Flag
- )
-/*++
-
-Routine Description:
- Given the input file pointer, search for the next matching file in the
- FFS volume as defined by SearchType. The search starts from FileHeader inside
- the Firmware Volume defined by FwVolHeader.
-
-Arguments:
- PeiServices - Pointer to the PEI Core Services Table.
- SearchType - Filter to find only files of this type.
- Type EFI_FV_FILETYPE_ALL causes no filtering to be done.
- FwVolHeader - Pointer to the FV header of the volume to search.
- This parameter must point to a valid FFS volume.
- FileHeader - Pointer to the current file from which to begin searching.
- This pointer will be updated upon return to reflect the file found.
- Flag - Indicator for if this is for PEI Dispath search
-Returns:
- EFI_NOT_FOUND - No files matching the search criteria were found
- EFI_SUCCESS
-
---*/
-{
- EFI_FFS_FILE_HEADER *FfsFileHeader;
- UINT32 FileLength;
- UINT32 FileOccupiedSize;
- UINT32 FileOffset;
- UINT64 FvLength;
- UINT8 ErasePolarity;
- UINT8 FileState;
-
-
- FvLength = FwVolHeader->FvLength;
- if (FwVolHeader->Attributes & EFI_FVB_ERASE_POLARITY) {
- ErasePolarity = 1;
- } else {
- ErasePolarity = 0;
- }
-
- //
- // If FileHeader is not specified (NULL) start with the first file in the
- // firmware volume. Otherwise, start from the FileHeader.
- //
- if (*FileHeader == NULL) {
- FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FwVolHeader + FwVolHeader->HeaderLength);
- } else {
- //
- // Length is 24 bits wide so mask upper 8 bits
- // FileLength is adjusted to FileOccupiedSize as it is 8 byte aligned.
- //
- FileLength = *(UINT32 *)(*FileHeader)->Size & 0x00FFFFFF;
- FileOccupiedSize = GETOCCUPIEDSIZE(FileLength, 8);
- FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)*FileHeader + FileOccupiedSize);
- }
-
- FileOffset = (UINT32) ((UINT8 *)FfsFileHeader - (UINT8 *)FwVolHeader);
- ASSERT (FileOffset <= 0xFFFFFFFF);
-
- while (FileOffset < (FvLength - sizeof(EFI_FFS_FILE_HEADER))) {
- //
- // Get FileState which is the highest bit of the State
- //
- FileState = GetFileState (ErasePolarity, FfsFileHeader);
-
- switch (FileState) {
-
- case EFI_FILE_HEADER_INVALID:
- FileOffset += sizeof(EFI_FFS_FILE_HEADER);
- FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + sizeof(EFI_FFS_FILE_HEADER));
- break;
-
- case EFI_FILE_DATA_VALID:
- case EFI_FILE_MARKED_FOR_UPDATE:
- if (CalculateHeaderChecksum (FfsFileHeader) == 0) {
- FileLength = *(UINT32 *)(FfsFileHeader->Size) & 0x00FFFFFF;
- FileOccupiedSize = GETOCCUPIEDSIZE(FileLength, 8);
- if (Flag) {
- if ((FfsFileHeader->Type == EFI_FV_FILETYPE_PEIM) ||
- (FfsFileHeader->Type == EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER)) {
-
- *FileHeader = FfsFileHeader;
-
-
- return EFI_SUCCESS;
- }
- } else {
- if ((SearchType == FfsFileHeader->Type) ||
- (SearchType == EFI_FV_FILETYPE_ALL)) {
-
- *FileHeader = FfsFileHeader;
-
-
- return EFI_SUCCESS;
- }
- }
-
- FileOffset += FileOccupiedSize;
- FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + FileOccupiedSize);
- } else {
- ASSERT (FALSE);
- return EFI_NOT_FOUND;
- }
- break;
-
- case EFI_FILE_DELETED:
- FileLength = *(UINT32 *)(FfsFileHeader->Size) & 0x00FFFFFF;
- FileOccupiedSize = GETOCCUPIEDSIZE(FileLength, 8);
- FileOffset += FileOccupiedSize;
- FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + FileOccupiedSize);
- break;
-
- default:
- return EFI_NOT_FOUND;
-
- }
- }
-
- return EFI_NOT_FOUND;
-}
-
-
-EFI_STATUS
-EFIAPI
-PeiFfsFindSectionData (
- IN EFI_PEI_SERVICES **PeiServices,
- IN EFI_SECTION_TYPE SectionType,
- IN EFI_FFS_FILE_HEADER *FfsFileHeader,
- IN OUT VOID **SectionData
- )
-/*++
-
-Routine Description:
- Given the input file pointer, search for the next matching section in the
- FFS volume.
-
-Arguments:
- PeiServices - Pointer to the PEI Core Services Table.
- SearchType - Filter to find only sections of this type.
- FfsFileHeader - Pointer to the current file to search.
- SectionData - Pointer to the Section matching SectionType in FfsFileHeader.
- - NULL if section not found
-
-Returns:
- EFI_NOT_FOUND - No files matching the search criteria were found
- EFI_SUCCESS
-
---*/
-{
- UINT32 FileSize;
- EFI_COMMON_SECTION_HEADER *Section;
- UINT32 SectionLength;
- UINT32 ParsedLength;
-
-
- //
- // Size is 24 bits wide so mask upper 8 bits.
- // Does not include FfsFileHeader header size
- // FileSize is adjusted to FileOccupiedSize as it is 8 byte aligned.
- //
- Section = (EFI_COMMON_SECTION_HEADER *)(FfsFileHeader + 1);
- FileSize = *(UINT32 *)(FfsFileHeader->Size) & 0x00FFFFFF;
- FileSize -= sizeof(EFI_FFS_FILE_HEADER);
-
- *SectionData = NULL;
- ParsedLength = 0;
- while (ParsedLength < FileSize) {
- if (Section->Type == SectionType) {
- *SectionData = (VOID *)(Section + 1);
-
-
- return EFI_SUCCESS;
- }
- //
- // Size is 24 bits wide so mask upper 8 bits.
- // SectionLength is adjusted it is 4 byte aligned.
- // Go to the next section
- //
- SectionLength = *(UINT32 *)Section->Size & 0x00FFFFFF;
- SectionLength = GETOCCUPIEDSIZE (SectionLength, 4);
- ASSERT (SectionLength != 0);
- ParsedLength += SectionLength;
- Section = (EFI_COMMON_SECTION_HEADER *)((UINT8 *)Section + SectionLength);
- }
-
- return EFI_NOT_FOUND;
-
-}
-
-
-EFI_STATUS
-FindNextPeim (
- IN EFI_PEI_SERVICES **PeiServices,
- IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,
- IN OUT EFI_FFS_FILE_HEADER **PeimFileHeader
- )
-/*++
-
-Routine Description:
- Given the input file pointer, search for the next matching file in the
- FFS volume. The search starts from FileHeader inside
- the Firmware Volume defined by FwVolHeader.
-
-Arguments:
- PeiServices - Pointer to the PEI Core Services Table.
-
- FwVolHeader - Pointer to the FV header of the volume to search.
- This parameter must point to a valid FFS volume.
-
- PeimFileHeader - Pointer to the current file from which to begin searching.
- This pointer will be updated upon return to reflect the file found.
-
-Returns:
- EFI_NOT_FOUND - No files matching the search criteria were found
- EFI_SUCCESS
-
---*/
-{
- return PeiFfsFindNextFileEx (
- 0,
- FwVolHeader,
- PeimFileHeader,
- TRUE
- );
-}
-
-EFI_STATUS
-EFIAPI
-PeiFfsFindNextFile (
- IN EFI_PEI_SERVICES **PeiServices,
- IN EFI_FV_FILETYPE SearchType,
- IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,
- IN OUT EFI_FFS_FILE_HEADER **FileHeader
- )
-/*++
-
-Routine Description:
- Given the input file pointer, search for the next matching file in the
- FFS volume as defined by SearchType. The search starts from FileHeader inside
- the Firmware Volume defined by FwVolHeader.
-
-Arguments:
- PeiServices - Pointer to the PEI Core Services Table.
-
- SearchType - Filter to find only files of this type.
- Type EFI_FV_FILETYPE_ALL causes no filtering to be done.
-
- FwVolHeader - Pointer to the FV header of the volume to search.
- This parameter must point to a valid FFS volume.
-
- FileHeader - Pointer to the current file from which to begin searching.
- This pointer will be updated upon return to reflect the file found.
-
-Returns:
- EFI_NOT_FOUND - No files matching the search criteria were found
- EFI_SUCCESS
-
---*/
-{
- return PeiFfsFindNextFileEx (
- SearchType,
- FwVolHeader,
- FileHeader,
- FALSE
- );
-}
-
-EFI_STATUS
-EFIAPI
-PeiFvFindNextVolume (
- IN EFI_PEI_SERVICES **PeiServices,
- IN UINTN Instance,
- IN OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader
- )
-/*++
-
-Routine Description:
-
- Return the BFV location
-
- BugBug -- Move this to the location of this code to where the
- other FV and FFS support code lives.
- Also, update to use FindFV for instances #'s >= 1.
-
-Arguments:
-
- PeiServices - The PEI core services table.
- Instance - Instance of FV to find
- FwVolHeader - Pointer to contain the data to return
-
-Returns:
- Pointer to the Firmware Volume instance requested
-
- EFI_INVALID_PARAMETER - FwVolHeader is NULL
-
- EFI_SUCCESS - Firmware volume instance successfully found.
-
---*/
-{
- PEI_CORE_INSTANCE *PrivateData;
- EFI_STATUS Status;
- EFI_PEI_FIND_FV_PPI *FindFvPpi;
- UINT8 LocalInstance;
-
-
- LocalInstance = (UINT8) Instance;
-
- Status = EFI_SUCCESS;
- PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);
-
- if (FwVolHeader == NULL) {
-
- return EFI_INVALID_PARAMETER;
- }
-
- if (Instance == 0) {
- *FwVolHeader = PrivateData->DispatchData.BootFvAddress;
-
-
- return Status;
- } else {
- //
- // Locate all instances of FindFV
- // Alternately, could use FV HOBs, but the PPI is cleaner
- //
- Status = PeiServicesLocatePpi (
- &gEfiFindFvPpiGuid,
- 0,
- NULL,
- (VOID **)&FindFvPpi
- );
-
- if (Status != EFI_SUCCESS) {
- Status = EFI_NOT_FOUND;
- } else {
- Status = FindFvPpi->FindFv (
- FindFvPpi,
- PeiServices,
- &LocalInstance,
- FwVolHeader
- );
-
- }
- }
- return Status;
-}
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