diff options
Diffstat (limited to 'Tools/CCode/Source/SecApResetVectorFixup/SecApResetVectorFixup.c')
| -rw-r--r-- | Tools/CCode/Source/SecApResetVectorFixup/SecApResetVectorFixup.c | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/Tools/CCode/Source/SecApResetVectorFixup/SecApResetVectorFixup.c b/Tools/CCode/Source/SecApResetVectorFixup/SecApResetVectorFixup.c new file mode 100644 index 0000000000..442645720e --- /dev/null +++ b/Tools/CCode/Source/SecApResetVectorFixup/SecApResetVectorFixup.c @@ -0,0 +1,363 @@ +/*++
+
+Copyright (c) 2004-2006 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:
+
+ SecApResetVectorFixup.c
+
+Abstract:
+
+ This utility is part of build process for IA32 Fvrecovery.fv whose total size
+ is larger than 128kB so that we cannot use GenFvImage utility to put Ap reset
+ vector at the zero vector of Fv header.
+
+ PEI FV after using the tool
+
+ -------------------------
+ |zzz |
+ | |
+ | |
+ | FFS |
+ | |
+ | |
+ | |
+ |---------------------- |
+ | PAD |
+ | |
+ |.......................| ---
+ | | |
+ |xxx | | 128K
+ |---------------------- | |
+ | VTF (SEC) | |
+ ------------------------- ---
+
+ 1. zzz --> Zero vector, which is beyond the 128K limited address space
+ 2. xxx --> AP reset vector at 4K alignment below 128K and it is in the PAD
+ file area.
+ 3. After the build process ,the PAD guid is changed to a new GUID to avoid
+ the PAD definition confusing. If there is some problem, try to disable
+ UpdatePadFileGuid
+
+
+
+--*/
+
+#include "SecApResetVectorFixup.h"
+
+
+EFI_GUID DefaultFvPadFileNameGuid = { 0x78f54d4, 0xcc22, 0x4048, 0x9e, 0x94, 0x87, 0x9c, 0x21, 0x4d, 0x56, 0x2f };
+EFI_GUID NewFvPadFileNameGuid = { 0x145372bc, 0x66b9, 0x476d, 0x81, 0xbc, 0x21, 0x27, 0xc3, 0x76, 0xbb, 0x66 };
+
+//
+// jmp 0xf000:0xffd0 (0xFFFFFFD0)
+//
+UINT8 ApResetVector[5] = {0xEA, 0xD0, 0xFF, 0x00, 0xF0};
+
+VOID
+PrintUtilityInfo (
+ VOID
+ )
+/*++
+
+Routine Description:
+
+ Displays the standard utility information to SDTOUT
+
+Arguments:
+
+ None
+
+Returns:
+
+ None
+
+--*/
+{
+ printf (
+ "%s - Tiano IA32 SEC Ap Reset Vector Fixup Utility."" Version %i.%i\n\n",
+ UTILITY_NAME,
+ UTILITY_MAJOR_VERSION,
+ UTILITY_MINOR_VERSION
+ );
+}
+
+VOID
+PrintUsage (
+ VOID
+ )
+/*++
+
+Routine Description:
+
+ Displays the utility usage syntax to STDOUT
+
+Arguments:
+
+ None
+
+Returns:
+
+ None
+
+--*/
+{
+ printf ("Usage: %s InputFvrecoveryFile OutputFvrecoveryFile\n", UTILITY_NAME);
+ printf (" Where:\n");
+ printf ("\tInputFvrecoveryFile - Name of the IA32 input Fvrecovery.fv file.\n");
+ printf ("\tOutputFvrecoveryFile - Name of the IA32 output Fvrecovery.fv file.\n");
+}
+
+
+VOID
+UpdatePadFileGuid (
+ IN EFI_FIRMWARE_VOLUME_HEADER *FvHeader,
+ IN EFI_FFS_FILE_HEADER *FileHeader,
+ IN UINT32 FileLength,
+ IN OUT EFI_GUID *Guid
+ )
+/*++
+
+Routine Description:
+
+ Update the Pad File Guid to change it to other guid and update
+ the checksum
+
+Arguments:
+ FvHeader - EFI_FIRMWARE_VOLUME_HEADER
+ FileHeader - The FFS PAD file header.
+ FileLength - The FFS PAD file length.
+ Guid - The Guid to compare and if it is PAD Guid, update it to new Guid
+Returns:
+ VOID
+--*/
+
+{
+ if ((CompareGuid (Guid, (EFI_GUID *)&DefaultFvPadFileNameGuid)) == 0) {
+ //
+ // Set new Pad file guid
+ //
+ memcpy (Guid, &NewFvPadFileNameGuid, sizeof (EFI_GUID));
+
+
+
+ FileHeader->Type = EFI_FV_FILETYPE_FFS_PAD;
+ FileHeader->Attributes = 0;
+ //
+ // Fill in checksums and state, must be zero during checksum calculation.
+ //
+ FileHeader->IntegrityCheck.Checksum.Header = 0;
+ FileHeader->IntegrityCheck.Checksum.File = 0;
+ FileHeader->State = 0;
+ FileHeader->IntegrityCheck.Checksum.Header = CalculateChecksum8 ((UINT8 *) FileHeader, sizeof (EFI_FFS_FILE_HEADER));
+ if (FileHeader->Attributes & FFS_ATTRIB_CHECKSUM) {
+ FileHeader->IntegrityCheck.Checksum.File = CalculateChecksum8 ((UINT8 *) FileHeader, FileLength);
+ } else {
+ FileHeader->IntegrityCheck.Checksum.File = FFS_FIXED_CHECKSUM;
+ }
+
+ FileHeader->State = EFI_FILE_HEADER_CONSTRUCTION | EFI_FILE_HEADER_VALID | EFI_FILE_DATA_VALID;
+
+ if (FvHeader->Attributes & EFI_FVB_ERASE_POLARITY) {
+ FileHeader->State = (UINT8)~(FileHeader->State);
+ }
+ }
+
+}
+
+
+STATUS
+main (
+ IN INTN argc,
+ IN CHAR8 **argv
+ )
+/*++
+
+Routine Description:
+
+ Main function.
+
+Arguments:
+
+ argc - Number of command line parameters.
+ argv - Array of pointers to parameter strings.
+
+Returns:
+ STATUS_SUCCESS - Utility exits successfully.
+ STATUS_ERROR - Some error occurred during execution.
+
+--*/
+{
+ FILE *FpIn;
+ FILE *FpOut;
+ UINT32 FvrecoveryFileSize;
+ UINT8 *FileBuffer;
+ UINT8 *FileBufferRaw;
+ UINT64 FvLength;
+ UINT32 Offset;
+ UINT32 FileLength;
+ UINT32 FileOccupiedSize;
+ EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
+ EFI_FFS_FILE_HEADER *FileHeader;
+ EFI_GUID *TempGuid;
+ UINT8 *FixPoint;
+ UINT32 TempResult;
+ UINT32 Index;
+ UINT32 IpiVector;
+
+ TempGuid = NULL;
+ SetUtilityName (UTILITY_NAME);
+
+ //
+ // Display utility information
+ //
+ PrintUtilityInfo ();
+
+ //
+ // Verify the correct number of arguments
+ //
+ if (argc != MAX_ARGS) {
+ Error (NULL, 0, 0, "invalid number of input parameters specified", NULL);
+ PrintUsage ();
+ return STATUS_ERROR;
+ }
+ //
+ // Open the Input Fvrecovery.fv file
+ //
+ if ((FpIn = fopen (argv[1], "rb")) == NULL) {
+ Error (NULL, 0, 0, "Unable to open file", argv[1]);
+ return STATUS_ERROR;
+ }
+ //
+ // Get the Input Fvrecovery.fv file size
+ //
+ fseek (FpIn, 0, SEEK_END);
+ FvrecoveryFileSize = ftell (FpIn);
+ //
+ // Read the contents of input file to memory buffer
+ //
+ FileBuffer = NULL;
+ FileBufferRaw = NULL;
+ FileBufferRaw = (UINT8 *) malloc (FvrecoveryFileSize + 0x10000);
+ if (NULL == FileBufferRaw) {
+ Error (NULL, 0, 0, "No sufficient memory to allocate!", NULL);
+ fclose (FpIn);
+ return STATUS_ERROR;
+ }
+ TempResult = 0x10000 - ((UINT32)FileBufferRaw & 0x0FFFF);
+ FileBuffer = (UINT8 *)((UINT32)FileBufferRaw + TempResult);
+ fseek (FpIn, 0, SEEK_SET);
+ TempResult = fread (FileBuffer, 1, FvrecoveryFileSize, FpIn);
+ if (TempResult != FvrecoveryFileSize) {
+ Error (NULL, 0, 0, "Read input file error!", NULL);
+ free ((VOID *)FileBufferRaw);
+ fclose (FpIn);
+ return STATUS_ERROR;
+ }
+ //
+ // Close the input Fvrecovery.fv file
+ //
+ fclose (FpIn);
+ //
+ // Find the pad FFS file
+ //
+ FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)FileBuffer;
+ FvLength = FvHeader->FvLength;
+ FileHeader = (EFI_FFS_FILE_HEADER *)(FileBuffer + FvHeader->HeaderLength);
+ FileLength = (*(UINT32 *)(FileHeader->Size)) & 0x00FFFFFF;
+ FileOccupiedSize = GETOCCUPIEDSIZE(FileLength, 8);
+ Offset = (UINT32)FileHeader - (UINT32)FileBuffer;
+
+ while (Offset < FvLength) {
+ TempGuid = (EFI_GUID *)&(FileHeader->Name);
+ FileLength = (*(UINT32 *)(FileHeader->Size)) & 0x00FFFFFF;
+ FileOccupiedSize = GETOCCUPIEDSIZE(FileLength, 8);
+ if ((CompareGuid (TempGuid, (EFI_GUID *)&DefaultFvPadFileNameGuid)) == 0) {
+ break;
+ }
+ FileHeader = (EFI_FFS_FILE_HEADER *)((UINT32)FileHeader + FileOccupiedSize);
+ Offset = (UINT32)FileHeader - (UINT32)FileBuffer;
+ }
+
+ if (Offset >= FvLength) {
+ Error (NULL, 0, 0, "No pad file found!", NULL);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_ERROR;
+ }
+ //
+ // Find the position to place Ap reset vector, the offset
+ // between the position and the end of Fvrecovery.fv file
+ // should not exceed 128kB to prevent Ap reset vector from
+ // outside legacy E and F segment
+ //
+ FixPoint = (UINT8 *)(FileHeader + sizeof(EFI_FFS_FILE_HEADER));
+ TempResult = 0x1000 - ((UINT32)FixPoint & 0x0FFF);
+ FixPoint +=TempResult;
+ if (((UINT32)FixPoint - (UINT32)FileHeader + 5) > FileOccupiedSize) {
+ Error (NULL, 0, 0, "No appropriate space in pad file to add Ap reset vector!", NULL);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_ERROR;
+ }
+ while (((UINT32)FixPoint - (UINT32)FileHeader + 5) <= FileOccupiedSize) {
+ FixPoint += 0x1000;
+ }
+ FixPoint -= 0x1000;
+ if ((UINT32)FvHeader + FvLength - (UINT32)FixPoint > 0x20000) {
+ Error (NULL, 0, 0, "The position to place Ap reset vector is not in E and F segment!", NULL);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_ERROR;
+ }
+ //
+ // Fix up Ap reset vector and calculate the IPI vector
+ //
+ for (Index = 0; Index < 5; Index++) {
+ FixPoint[Index] = ApResetVector[Index];
+ }
+ TempResult = 0x0FFFFFFFF - ((UINT32)FvHeader + (UINT32)FvLength - 1 - (UINT32)FixPoint);
+ TempResult >>= 12;
+ IpiVector = TempResult & 0x0FF;
+
+
+ UpdatePadFileGuid (FvHeader, FileHeader, FileLength, TempGuid);
+
+ //
+ // Open the output Fvrecovery.fv file
+ //
+ if ((FpOut = fopen (argv[2], "w+b")) == NULL) {
+ Error (NULL, 0, 0, "Unable to open file", argv[2]);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_ERROR;
+ }
+ //
+ // Write the output Fvrecovery.fv file
+ //
+ if ((fwrite (FileBuffer, 1, FvrecoveryFileSize, FpOut)) != FvrecoveryFileSize) {
+ Error (NULL, 0, 0, "Write output file error!", NULL);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_ERROR;
+ }
+ //
+ //
+ //
+ fseek (FpOut, -8, SEEK_END);
+ if ((fwrite (&IpiVector, 1, sizeof(UINT32), FpOut)) != sizeof(UINT32)) {
+ Error (NULL, 0, 0, "Write output file error!", NULL);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_ERROR;
+ }
+ //
+ // Close the output Fvrecovery.fv file
+ //
+ fclose (FpOut);
+ free ((VOID *)FileBufferRaw);
+ return STATUS_SUCCESS;
+}
+
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