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4ea31ba020
This update introduces the implementation of QemuFlashFvbServices to support operation with Standalone MM backed platforms. Signed-off-by: Kun Qin <kun.qin@microsoft.com>
117 lines
2.6 KiB
C
117 lines
2.6 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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SPDX-License-Identifier: BSD-2-Clause-Patent
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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/MmServicesTableLib.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 ((DEBUG_INFO, "Installing QEMU flash SMM FVB\n"));
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Status = gMmst->MmInstallProtocolInterface (
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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 = gMmst->MmInstallProtocolInterface (
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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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EFI_STATUS
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MarkIoMemoryRangeForRuntimeAccess (
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINTN Length
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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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return EFI_SUCCESS;
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}
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VOID
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SetPcdFlashNvStorageBaseAddresses (
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VOID
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)
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{
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//
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// Do nothing.
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//
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}
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VOID
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UpdateQemuFlashVariablesEnable (
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VOID
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)
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{
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//
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// Do nothing for Standalone MM.
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//
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}
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/**
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Abstracted entry point for Standalone MM instance.
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FVB Standalone MM driver entry point.
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@param[in] ImageHandle A handle for the image that is initializing this
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driver
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@param[in] MmSystemTable A pointer to the MM system table
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@retval EFI_SUCCESS Variable service successfully initialized.
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**/
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EFI_STATUS
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EFIAPI
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FvbInitializeStandaloneMm (
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IN EFI_HANDLE ImageHandle,
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IN EFI_MM_SYSTEM_TABLE *MmSystemTable
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)
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{
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return FvbInitialize (NULL, NULL);
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}
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