StandaloneMmDriverEntryPoint.c

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#include <PiMm.h>
 
#include <Protocol/LoadedImage.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/MmServicesTableLib.h>
#include <Library/StandaloneMmDriverEntryPoint.h>
 
EFI_STATUS
EFIAPI
_DriverUnloadHandler (
  EFI_HANDLE  ImageHandle
  )
{
  EFI_STATUS  Status;
 
  //
  // If an UnloadImage() handler is specified, then call it
  //
  Status = ProcessModuleUnloadList (ImageHandle);
 
  //
  // If the driver specific unload handler does not return an error, then call all of the
  // library destructors.  If the unload handler returned an error, then the driver can not be
  // unloaded, and the library destructors should not be called
  //
  if (!EFI_ERROR (Status)) {
    ProcessLibraryDestructorList (ImageHandle, gMmst);
  }
 
  //
  // Return the status from the driver specific unload handler
  //
  return Status;
}
 
EFI_STATUS
EFIAPI
_ModuleEntryPoint (
  IN EFI_HANDLE              ImageHandle,
  IN IN EFI_MM_SYSTEM_TABLE  *MmSystemTable
  )
{
  EFI_STATUS                 Status;
  EFI_LOADED_IMAGE_PROTOCOL  *LoadedImage;
 
  if (_gMmRevision != 0) {
    //
    // Make sure that the MM spec revision of the platform
    // is >= MM spec revision of the driver
    //
    if (MmSystemTable->Hdr.Revision < _gMmRevision) {
      return EFI_INCOMPATIBLE_VERSION;
    }
  }
 
  //
  // Call constructor for all libraries
  //
  ProcessLibraryConstructorList (ImageHandle, MmSystemTable);
 
  //
  //  Install unload handler...
  //
  if (_gDriverUnloadImageCount != 0) {
    Status = gMmst->MmHandleProtocol (
                      ImageHandle,
                      &gEfiLoadedImageProtocolGuid,
                      (VOID **)&LoadedImage
                      );
    ASSERT_EFI_ERROR (Status);
    LoadedImage->Unload = _DriverUnloadHandler;
  }
 
  //
  // Call the driver entry point
  //
  Status = ProcessModuleEntryPointList (ImageHandle, MmSystemTable);
 
  //
  // If all of the drivers returned errors, then invoke all of the library destructors
  //
  if (EFI_ERROR (Status)) {
    ProcessLibraryDestructorList (ImageHandle, MmSystemTable);
  }
 
  //
  // Return the cumulative return status code from all of the driver entry points
  //
  return Status;
}