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diff --git a/roms/edk2/MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatDriOverrideDxe.uni b/roms/edk2/MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatDriOverrideDxe.uni
new file mode 100644
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+++ b/roms/edk2/MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatDriOverrideDxe.uni
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+// /** @file
+// This driver produces UEFI PLATFORM_DRIVER_OVERRIDE_PROTOCOL if this protocol doesn't exist.
+//
+// It doesn't install again if this protocol exists.
+// It only implements one interface GetDriver of PLATFORM_DRIVER_OVERRIDE_PROTOCOL protocol
+// and doesn't support other two interfaces GetDriverPath, DriverLoaded.
+//
+// This driver also offers an UI interface in device manager to let user configure
+// platform override protocol to override the default algorithm for matching
+// drivers to controllers.
+//
+// The main flow:
+// 1. It dynamicly locate all controller device path.
+// 2. It dynamicly locate all drivers which support binding protocol.
+// 3. It export and dynamicly update two menu to let user select the
+// mapping between drivers to controllers.
+// 4. It save all the mapping info in NV variables for the following boot,
+// which will be consumed by GetDriver API of the produced the platform override protocol.
+//
+// Caution: This module is a sample implementation for the test purpose.
+//
+// Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Produces UEFI PLATFORM_DRIVER_OVERRIDE_PROTOCOL if this protocol doesn't exist"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "This driver produces UEFI PLATFORM_DRIVER_OVERRIDE_PROTOCOL if this protocol doesn't exist. It only implements the GetDriver() interface of PLATFORM_DRIVER_OVERRIDE_PROTOCOL protocol This driver also offers an UI interface in device manager to let users configure PlatformOverrideProtocol to override the default algorithm for matching drivers to controllers.<BR><BR>\n"
+                                                        "The main flow:<BR>\n"
+                                                        "1. It dynamically locates all controller device path.<BR>\n"
+                                                        "2. It dynamically locates all drivers which support binding protocol.<BR>\n"
+                                                        "3. It exports and dynamicly updates two menu to let user select the  mapping between drivers to controllers.<BR>\n"
+                                                        "4. It saves all the mapping info in NV variables for the following boot,  which will be consumed by GetDriver API of the produced the platform override protocol.<BR>"
+