b963ec494c
When the user requires "security" by passing -D SMM_REQUIRE, and consequently by setting PcdSmmSmramRequire, enforce flash-based variables. Furthermore, add two ASSERT()s to catch if the wrong module were pulled into the build. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19063 6f19259b-4bc3-4df7-8a09-765794883524
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/**@file
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Functions related to the Firmware Volume Block service whose
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implementation is specific to the SMM driver build.
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Copyright (C) 2015, Red Hat, Inc.
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Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Library/SmmServicesTableLib.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/SmmFirmwareVolumeBlock.h>
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#include "FwBlockService.h"
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VOID
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InstallProtocolInterfaces (
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IN EFI_FW_VOL_BLOCK_DEVICE *FvbDevice
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)
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{
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EFI_HANDLE FvbHandle;
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EFI_STATUS Status;
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ASSERT (FeaturePcdGet (PcdSmmSmramRequire));
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//
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// There is no SMM service that can install multiple protocols in the SMM
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// protocol database in one go.
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//
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// The SMM Firmware Volume Block protocol structure is the same as the
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// Firmware Volume Block protocol structure.
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//
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FvbHandle = NULL;
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DEBUG ((EFI_D_INFO, "Installing QEMU flash SMM FVB\n"));
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Status = gSmst->SmmInstallProtocolInterface (
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&FvbHandle,
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&gEfiSmmFirmwareVolumeBlockProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&FvbDevice->FwVolBlockInstance
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);
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ASSERT_EFI_ERROR (Status);
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Status = gSmst->SmmInstallProtocolInterface (
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&FvbHandle,
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&gEfiDevicePathProtocolGuid,
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EFI_NATIVE_INTERFACE,
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FvbDevice->DevicePath
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);
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ASSERT_EFI_ERROR (Status);
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}
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VOID
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InstallVirtualAddressChangeHandler (
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VOID
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)
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{
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//
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// Nothing.
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//
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}
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