OvmfPkg: Add QemuFlashFvbServicesRuntimeDxe driver

If QEMU flash is detected, this module will install
FirmwareVolumeBlock support for the QEMU flash device.

It will also set PCDs with the results that:
1. OvmfPkg/EmuVariableFvbRuntimeDxe will be disabled
2. MdeModulePkg variable services will read/write flash directly

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14839 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf

@@ -0,0 +1,83 @@
+## @file
+# Component description file for QEMU Flash Fimware Volume Block DXE driver module.
+#
+# This DXE runtime driver implements and produces the Fimware Volue Block Protocol
+# for a QEMU flash device.
+#
+# Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+#
+#  This program and the accompanying materials
+#  are licensed and made available under the terms and conditions of the BSD License
+#  which accompanies this distribution. The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = FvbServicesRuntimeDxe
+  FILE_GUID                      = 733cbac2-b23f-4b92-bc8e-fb01ce5907b7
+  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = FvbInitialize
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32
+#
+
+[Sources]
+  FvbInfo.c
+  FwBlockService.c
+  QemuFlash.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+  UefiBootServicesTableLib
+  MemoryAllocationLib
+  BaseMemoryLib
+  HobLib
+  DebugLib
+  UefiRuntimeLib
+  DxeServicesTableLib
+  BaseLib
+  UefiDriverEntryPoint
+  UefiLib
+  PcdLib
+
+[Guids]
+  gEfiEventVirtualAddressChangeGuid             # ALWAYS_CONSUMED  Create Event: EVENT_GROUP_GUID
+
+[Protocols]
+  gEfiFirmwareVolumeBlockProtocolGuid           # PROTOCOL SOMETIMES_PRODUCED
+  gEfiDevicePathProtocolGuid                    # PROTOCOL SOMETIMES_PRODUCED
+
+[FixedPcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageVariableBase
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwWorkingBase
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwSpareBase
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogSize
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareBlockSize
+
+[Pcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase
+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogBase
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64
+
+
+[Depex]
+  TRUE