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/**@file
Functions related to the Firmware Volume Block service whose
implementation is specific to the SMM driver build.
Copyright (C) 2015, Red Hat, Inc.
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#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 ((EFI_D_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;
}
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