StandaloneMmPkg: Add CPU driver suitable for ARM Platforms.

[mirror_edk2.git] / StandaloneMmPkg / Core / FwVol.c

/**@file\r
\r
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r
Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "StandaloneMmCore.h"\r
#include <Library/FvLib.h>\r
\r
//\r
// List of file types supported by dispatcher\r
//\r
EFI_FV_FILETYPE mMmFileTypes[] = {\r
  EFI_FV_FILETYPE_MM,\r
  0xE, //EFI_FV_FILETYPE_MM_STANDALONE,\r
       //\r
       // Note: DXE core will process the FV image file, so skip it in MM core\r
       // EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE\r
       //\r
};\r
\r
EFI_STATUS\r
MmAddToDriverList (\r
  IN EFI_HANDLE   FvHandle,\r
  IN VOID         *Pe32Data,\r
  IN UINTN        Pe32DataSize,\r
  IN VOID         *Depex,\r
  IN UINTN        DepexSize,\r
  IN EFI_GUID     *DriverName\r
  );\r
\r
BOOLEAN\r
FvHasBeenProcessed (\r
  IN EFI_HANDLE  FvHandle\r
  );\r
\r
VOID\r
FvIsBeingProcesssed (\r
  IN EFI_HANDLE  FvHandle\r
  );\r
\r
EFI_STATUS\r
MmCoreFfsFindMmDriver (\r
  IN  EFI_FIRMWARE_VOLUME_HEADER  *FwVolHeader\r
  )\r
/*++\r
\r
Routine Description:\r
  Given the pointer to the Firmware Volume Header find the\r
  MM driver and return it's PE32 image.\r
\r
Arguments:\r
  FwVolHeader - Pointer to memory mapped FV\r
\r
Returns:\r
  other       - Failure\r
\r
--*/\r
{\r
  EFI_STATUS          Status;\r
  EFI_STATUS          DepexStatus;\r
  EFI_FFS_FILE_HEADER *FileHeader;\r
  EFI_FV_FILETYPE     FileType;\r
  VOID                *Pe32Data;\r
  UINTN               Pe32DataSize;\r
  VOID                *Depex;\r
  UINTN               DepexSize;\r
  UINTN               Index;\r
\r
  DEBUG ((DEBUG_INFO, "MmCoreFfsFindMmDriver - 0x%x\n", FwVolHeader));\r
\r
  if (FvHasBeenProcessed (FwVolHeader)) {\r
    return EFI_SUCCESS;\r
  }\r
\r
  FvIsBeingProcesssed (FwVolHeader);\r
\r
  for (Index = 0; Index < sizeof (mMmFileTypes) / sizeof (mMmFileTypes[0]); Index++) {\r
    DEBUG ((DEBUG_INFO, "Check MmFileTypes - 0x%x\n", mMmFileTypes[Index]));\r
    FileType = mMmFileTypes[Index];\r
    FileHeader = NULL;\r
    do {\r
      Status = FfsFindNextFile (FileType, FwVolHeader, &FileHeader);\r
      if (!EFI_ERROR (Status)) {\r
        Status = FfsFindSectionData (EFI_SECTION_PE32, FileHeader, &Pe32Data, &Pe32DataSize);\r
        DEBUG ((DEBUG_INFO, "Find PE data - 0x%x\n", Pe32Data));\r
        DepexStatus = FfsFindSectionData (EFI_SECTION_MM_DEPEX, FileHeader, &Depex, &DepexSize);\r
        if (!EFI_ERROR (DepexStatus)) {\r
          MmAddToDriverList (FwVolHeader, Pe32Data, Pe32DataSize, Depex, DepexSize, &FileHeader->Name);\r
        }\r
      }\r
    } while (!EFI_ERROR (Status));\r
  }\r
\r
  return Status;\r
}\r