FwBlockServiceSmm.c

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#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/SmmServicesTableLib.h>
#include <Protocol/DevicePath.h>
#include <Protocol/SmmFirmwareVolumeBlock.h>
 
#include "FwBlockService.h"
 
VOID
InstallProtocolInterfaces (
  IN EFI_FW_VOL_BLOCK_DEVICE  *FvbDevice
  )
{
  EFI_HANDLE  FvbHandle;
  EFI_STATUS  Status;
 
  ASSERT (FeaturePcdGet (PcdSmmSmramRequire));
 
  //
  // There is no SMM service that can install multiple protocols in the SMM
  // protocol database in one go.
  //
  // The SMM Firmware Volume Block protocol structure is the same as the
  // Firmware Volume Block protocol structure.
  //
  FvbHandle = NULL;
  DEBUG ((DEBUG_INFO, "Installing QEMU flash SMM FVB\n"));
  Status = gSmst->SmmInstallProtocolInterface (
                    &FvbHandle,
                    &gEfiSmmFirmwareVolumeBlockProtocolGuid,
                    EFI_NATIVE_INTERFACE,
                    &FvbDevice->FwVolBlockInstance
                    );
  ASSERT_EFI_ERROR (Status);
 
  Status = gSmst->SmmInstallProtocolInterface (
                    &FvbHandle,
                    &gEfiDevicePathProtocolGuid,
                    EFI_NATIVE_INTERFACE,
                    FvbDevice->DevicePath
                    );
  ASSERT_EFI_ERROR (Status);
}
 
VOID
InstallVirtualAddressChangeHandler (
  VOID
  )
{
  //
  // Nothing.
  //
}
 
EFI_STATUS
MarkIoMemoryRangeForRuntimeAccess (
  IN EFI_PHYSICAL_ADDRESS  BaseAddress,
  IN UINTN                 Length
  )
{
  //
  // Nothing
  //
 
  return EFI_SUCCESS;
}
 
VOID
SetPcdFlashNvStorageBaseAddresses (
  VOID
  )
{
  //
  // Do nothing.
  //
}