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Add PeiCore module for enabling NT32Pkg, please attention this PeiCore does follows PI specification except some FV definitions.

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Also the old definition of MdeModulePkg/Include/Ppi/LoadFile.h and EFI_PEI_STARTUP_DESCRIPTOR in MdePkg/Include/PiPei.h will be removed when enabling PI.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3029 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2007-07-04 07:51:48 +00:00
parent 6afbfebff4
commit 192f6d4c29
30 changed files with 5619 additions and 12 deletions
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479
MdeModulePkg/Core/Pei/FwVol/FwVol.c Normal file
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/*++
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 common header file for this module.
//
#include "CommonHeader.h"
#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_FVB2_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_FVB2_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;
}