OvmfPkg: QemuFlashFvbServices: Introduce Standalone MM instance

This update introduces the implementation of QemuFlashFvbServices to
support operation with Standalone MM backed platforms.

Signed-off-by: Kun Qin <kun.qin@microsoft.com>

2 files changed, 194 insertions, 0 deletions

diff --git a/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesStandaloneMm.inf b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesStandaloneMm.inf
new file mode 100644
index 0000000..f8d3634
--- /dev/null
+++ b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesStandaloneMm.inf
@@ -0,0 +1,78 @@
+## @file

+#  Component description file for QEMU Flash Firmware Volume Block MM driver

+#  module.

+#

+#  This Standalone MM driver implements and produces the MM Firmware Volue Block Protocol

+#  for a QEMU flash device.

+#

+#  Copyright (C) 2015, Red Hat, Inc.

+#  Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>

+#  Copyright (c) Microsoft Corporation.

+#

+#  SPDX-License-Identifier: BSD-2-Clause-Patent

+#

+##

+

+[Defines]

+  INF_VERSION                    = 0x0001001B

+  BASE_NAME                      = FvbServicesStandaloneMm

+  FILE_GUID                      = 834DA76A-4EA1-41C7-9601-FE7A7C564757

+  MODULE_TYPE                    = MM_STANDALONE

+  VERSION_STRING                 = 1.0

+  PI_SPECIFICATION_VERSION       = 0x00010032

+  ENTRY_POINT                    = FvbInitializeStandaloneMm

+

+#

+# The following information is for reference only and not required by the build

+# tools.

+#

+#  VALID_ARCHITECTURES           = IA32 X64

+#

+

+[Sources]

+  FvbInfo.c

+  FwBlockService.c

+  FwBlockService.h

+  FwBlockServiceStandaloneMm.c

+  QemuFlash.c

+  QemuFlash.h

+  QemuFlashSmm.c

+

+[Packages]

+  MdePkg/MdePkg.dec

+  MdeModulePkg/MdeModulePkg.dec

+  OvmfPkg/OvmfPkg.dec

+  StandaloneMmPkg/StandaloneMmPkg.dec

+

+[LibraryClasses]

+  BaseLib

+  BaseMemoryLib

+  DebugLib

+  DevicePathLib

+  MemoryAllocationLib

+  MemEncryptSevLib

+  PcdLib

+  MmServicesTableLib

+  StandaloneMmDriverEntryPoint

+

+[Guids]

+

+[Protocols]

+  gEfiSmmFirmwareVolumeBlockProtocolGuid        # PROTOCOL ALWAYS_PRODUCED

+  gEfiDevicePathProtocolGuid                    # PROTOCOL ALWAYS_PRODUCED

+

+[FixedPcd]

+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize

+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize

+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageVariableBase

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogSize

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareBlockSize

+

+[FeaturePcd]

+  gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire

+

+[Depex]

+  TRUE

diff --git a/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockServiceStandaloneMm.c b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockServiceStandaloneMm.c
new file mode 100644
index 0000000..3ec3826
--- /dev/null
+++ b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockServiceStandaloneMm.c
@@ -0,0 +1,116 @@
+/**@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/MmServicesTableLib.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 = gMmst->MmInstallProtocolInterface (

+                    &FvbHandle,

+                    &gEfiSmmFirmwareVolumeBlockProtocolGuid,

+                    EFI_NATIVE_INTERFACE,

+                    &FvbDevice->FwVolBlockInstance

+                    );

+  ASSERT_EFI_ERROR (Status);

+

+  Status = gMmst->MmInstallProtocolInterface (

+                    &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.

+  //

+}

+

+VOID

+UpdateQemuFlashVariablesEnable (

+  VOID

+  )

+{

+  //

+  // Do nothing for Standalone MM.

+  //

+}

+

+/**

+  Abstracted entry point for Standalone MM instance.

+  FVB Standalone MM driver entry point.

+

+  @param[in] ImageHandle    A handle for the image that is initializing this

+                            driver

+  @param[in] MmSystemTable  A pointer to the MM system table

+

+  @retval EFI_SUCCESS       Variable service successfully initialized.

+**/

+EFI_STATUS

+EFIAPI

+FvbInitializeStandaloneMm (

+  IN EFI_HANDLE           ImageHandle,

+  IN EFI_MM_SYSTEM_TABLE  *MmSystemTable

+  )

+{

+  return FvbInitialize (NULL, NULL);

+}