[edk2-platforms][PATCH v2 10/32] AmpereSiliconPkg: Add PlatformManagerUiLib library instance

["Nhi Pham" <nhi@os.amperecomputing.com>]

From: Vu Nguyen <vunguyen@os.amperecomputing.com>

The idea came from DeviceManagerUiLib that all related menu settings can be
placed under a common entry. This change intends to provide a central point
for all platform menus by creating a Platform Manager entry located under
Device Manager entry of UiApp.

New classuuid called gPlatformManagerFormsetGuid was introduced for
platform menus which want to be reached through this Platform Manager.

Cc: Thang Nguyen <thang@os.amperecomputing.com>
Cc: Chuong Tran <chuong@os.amperecomputing.com>
Cc: Phong Vo <phong@os.amperecomputing.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>

Signed-off-by: Vu Nguyen <vunguyen@os.amperecomputing.com>
---
 Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec                             |  19 ++
 Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dsc.inc                             |   1 +
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.inf   |  47 +++
 Silicon/Ampere/AmpereSiliconPkg/Include/Guid/PlatformManagerHii.h                |  31 ++
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.h          |  51 +++
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.h       |  28 ++
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.c          | 354 ++++++++++++++++++++
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerStrings.uni |  21 ++
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.uni   |  13 +
 Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.Vfr     |  29 ++
 10 files changed, 594 insertions(+)

diff --git a/Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec b/Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec
index 26e020715290..a72205aa5316 100755
--- a/Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec
+++ b/Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec
@@ -22,12 +22,31 @@ [Defines]
 #
 ################################################################################
 [Includes.common]
+  Include                        # Root include for the package
 
 [LibraryClasses]
 
 [Guids]
   gAmpereTokenSpaceGuid = { 0xdbd4436e, 0x89cb, 0x44dc, { 0xb5, 0xc0, 0x49, 0xc3, 0x91, 0x35, 0xbf, 0xdf } }
 
+  #
+  # Platform Manager formset UUID
+  #
+  ## Include/Guid/PlatformManagerHii.h
+  gPlatformManagerFormsetGuid  = { 0x83ABD546, 0x7AD9, 0x4DE7, { 0xBD, 0x52, 0x12, 0x23, 0xF6, 0xE8, 0xFD, 0x4B } }
+
+  #
+  # Platform Manager entry UUID
+  #
+  ## Include/Guid/PlatformManagerHii.h
+  gPlatformManagerEntryEventGuid = { 0x28A4731E, 0x14A9, 0x488A, { 0xA8, 0x19, 0xFF, 0x27, 0x80, 0x6E, 0xDB, 0x0E } }
+
+  #
+  # Platform Manager exit UUID
+  #
+  ## Include/Guid/PlatformManagerHii.h
+  gPlatformManagerExitEventGuid  = { 0xE8887242, 0x4EFF, 0x4323, { 0x81, 0xF4, 0xC9, 0x5F, 0xD5, 0x8D, 0x80, 0xD5 } }
+
 [Ppis]
 
 [PcdsFixedAtBuild]
diff --git a/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dsc.inc b/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dsc.inc
index 65973569a41d..3c47099b8edc 100755
--- a/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dsc.inc
+++ b/Silicon/Ampere/AmpereAltraPkg/AmpereAltraPkg.dsc.inc
@@ -649,6 +649,7 @@ [Components.common]
   MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
   MdeModulePkg/Application/UiApp/UiApp.inf {
     <LibraryClasses>
+      NULL|Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.inf
       NULL|MdeModulePkg/Library/DeviceManagerUiLib/DeviceManagerUiLib.inf
       NULL|MdeModulePkg/Library/BootManagerUiLib/BootManagerUiLib.inf
       NULL|MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerUiLib.inf
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.inf b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.inf
new file mode 100644
index 000000000000..1cc5788bcebb
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.inf
@@ -0,0 +1,47 @@
+## @file
+#
+# Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001B
+  BASE_NAME                      = PlatformManagerUiLib
+  MODULE_UNI_FILE                = PlatformManagerUiLib.uni
+  FILE_GUID                      = 9264993E-2E15-478A-8928-14573E34C606
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = NULL|DXE_DRIVER UEFI_APPLICATION
+  CONSTRUCTOR                    = PlatformManagerUiLibConstructor
+  DESTRUCTOR                     = PlatformManagerUiLibDestructor
+
+[Sources]
+  PlatformManager.h
+  PlatformManagerVfr.Vfr
+  PlatformManagerStrings.uni
+  PlatformManager.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  Silicon/Ampere/AmpereSiliconPkg/AmpereSiliconPkg.dec
+
+[LibraryClasses]
+  DevicePathLib
+  BaseLib
+  MemoryAllocationLib
+  UefiBootServicesTableLib
+  BaseMemoryLib
+  DebugLib
+  HiiLib
+  UefiLib
+  UefiHiiServicesLib
+
+[Guids]
+  gPlatformManagerFormsetGuid                   ## CONSUMES ## GUID (Indicate the formset class guid to be displayed)
+  gEfiIfrTianoGuid                              ## CONSUMES ## GUID (Extended IFR Guid Opcode)
+  gEfiIfrFrontPageGuid                          ## CONSUMES ## GUID (Indicate the formset in this library need to display in which page)
+  gPlatformManagerEntryEventGuid                ## CONSUMES ## GUID (Indicate enter PlatformManager)
+  gPlatformManagerExitEventGuid                 ## CONSUMES ## GUID (Indicate exit PlatformManager)
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Include/Guid/PlatformManagerHii.h b/Silicon/Ampere/AmpereSiliconPkg/Include/Guid/PlatformManagerHii.h
new file mode 100644
index 000000000000..ee3ca13ddeb1
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Include/Guid/PlatformManagerHii.h
@@ -0,0 +1,31 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PLATFORM_MANAGER_HII_GUID_H_
+#define PLATFORM_MANAGER_HII_GUID_H_
+
+#define PLATFORM_MANAGER_FORMSET_GUID  \
+  { \
+  0x83ABD546, 0x7AD9, 0x4DE7, { 0xBD, 0x52, 0x12, 0x23, 0xF6, 0xE8, 0xFD, 0x4B } \
+  }
+
+#define PLATFORM_MANAGER_ENTRY_EVENT_GUID  \
+  { \
+  0x28A4731E, 0x14A9, 0x488A, { 0xA8, 0x19, 0xFF, 0x27, 0x80, 0x6E, 0xDB, 0x0E } \
+  }
+
+#define PLATFORM_MANAGER_EXIT_EVENT_GUID  \
+  { \
+  0xE8887242, 0x4EFF, 0x4323, { 0x81, 0xF4, 0xC9, 0x5F, 0xD5, 0x8D, 0x80, 0xD5 } \
+  }
+
+extern EFI_GUID gPlatformManagerFormsetGuid;
+extern EFI_GUID gPlatformManagerEntryEventGuid;
+extern EFI_GUID gPlatformManagerExitEventGuid;
+
+#endif
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.h b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.h
new file mode 100644
index 000000000000..49157e0cea47
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.h
@@ -0,0 +1,51 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PLATFORM_MANAGER_H_
+#define PLATFORM_MANAGER_H_
+
+#include <Uefi.h>
+
+#include <Guid/MdeModuleHii.h>
+#include <Guid/PlatformManagerHii.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/HiiLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiHiiServicesLib.h>
+#include <Library/UefiLib.h>
+
+#include "PlatformManagerVfr.h"
+
+//
+// These are the VFR compiler generated data representing our VFR data.
+//
+extern UINT8 PlatformManagerVfrBin[];
+extern UINT8 PlatformManagerUiLibStrings[];
+
+///
+/// HII specific Vendor Device Path definition.
+///
+typedef struct {
+  VENDOR_DEVICE_PATH       VendorDevicePath;
+  EFI_DEVICE_PATH_PROTOCOL End;
+} HII_VENDOR_DEVICE_PATH;
+
+typedef struct {
+  ///
+  /// Platform Manager HII relative handles
+  ///
+  EFI_HII_HANDLE HiiHandle;
+  EFI_HANDLE     DriverHandle;
+
+} PLATFORM_MANAGER_CALLBACK_DATA;
+
+#endif
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.h b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.h
new file mode 100644
index 000000000000..205907d3777a
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.h
@@ -0,0 +1,28 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PLATFORM_MANAGER_VFR_H_
+#define PLATFORM_MANAGER_VFR_H_
+
+#define FORMSET_GUID \
+  { \
+  0x6E7233C5, 0x2B79, 0x4383, { 0x81, 0x46, 0xD8, 0x6A, 0x9F, 0x0A, 0x0B, 0x99 } \
+  }
+
+//
+// These are defined as the same with vfr file
+//
+#define LABEL_FORM_ID_OFFSET                 0x0100
+#define ENTRY_KEY_OFFSET                     0x4000
+
+#define PLATFORM_MANAGER_FORM_ID             0x1000
+
+#define LABEL_ENTRY_LIST                     0x1100
+#define LABEL_END                            0xffff
+
+#endif /* PLATFORM_MANAGER_VFR_H_ */
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.c b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.c
new file mode 100644
index 000000000000..1872aa80ed18
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManager.c
@@ -0,0 +1,354 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PlatformManager.h"
+
+PLATFORM_MANAGER_CALLBACK_DATA gPlatformManagerPrivate = {
+  NULL,
+  NULL
+};
+
+EFI_GUID mPlatformManagerGuid = FORMSET_GUID;
+
+HII_VENDOR_DEVICE_PATH mPlatformManagerHiiVendorDevicePath = {
+  {
+    {
+      HARDWARE_DEVICE_PATH,
+      HW_VENDOR_DP,
+      {
+        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
+        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
+      }
+    },
+    //
+    // {FC587265-0750-44D1-B68D-D1DDD3F29B0B}
+    //
+    { 0xFC587265, 0x0750, 0x44D1, {0xB6, 0x8D, 0xD1, 0xDD, 0xD3, 0xF2, 0x9B, 0x0B} }
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      (UINT8)(END_DEVICE_PATH_LENGTH),
+      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
+    }
+  }
+};
+
+/**
+  Extract device path for given HII handle and class guid.
+
+  @param Handle          The HII handle.
+
+  @retval  NULL          Fail to get the device path string.
+  @return  PathString    Get the device path string.
+
+**/
+CHAR16 *
+PmExtractDevicePathFromHiiHandle (
+  IN EFI_HII_HANDLE Handle
+  )
+{
+  EFI_STATUS Status;
+  EFI_HANDLE DriverHandle;
+
+  ASSERT (Handle != NULL);
+
+  if (Handle == NULL) {
+    return NULL;
+  }
+
+  Status = gHiiDatabase->GetPackageListHandle (gHiiDatabase, Handle, &DriverHandle);
+  if (EFI_ERROR (Status)) {
+    return NULL;
+  }
+  //
+  // Get device path string.
+  //
+  return ConvertDevicePathToText (DevicePathFromHandle (DriverHandle), FALSE, FALSE);
+}
+
+/**
+  Dynamic create Hii information for Platform Manager.
+
+  @param   NextShowFormId     The FormId which need to be show.
+
+**/
+VOID
+CreatePlatformManagerForm (
+  IN EFI_FORM_ID NextShowFormId
+  )
+{
+  UINTN              Index;
+  EFI_STRING         String;
+  EFI_STRING_ID      Token;
+  EFI_STRING_ID      TokenHelp;
+  EFI_HII_HANDLE     *HiiHandles;
+  EFI_HII_HANDLE     HiiHandle;
+  EFI_GUID           FormSetGuid;
+  VOID               *StartOpCodeHandle;
+  VOID               *EndOpCodeHandle;
+  EFI_IFR_GUID_LABEL *StartLabel;
+  EFI_IFR_GUID_LABEL *EndLabel;
+  CHAR16             *DevicePathStr;
+  EFI_STRING_ID      DevicePathId;
+  EFI_IFR_FORM_SET   *Buffer;
+  UINTN              BufferSize;
+  UINT8              ClassGuidNum;
+  EFI_GUID           *ClassGuid;
+  UINTN              TempSize;
+  UINT8              *Ptr;
+  EFI_STATUS         Status;
+
+  TempSize = 0;
+  BufferSize = 0;
+  Buffer = NULL;
+
+  HiiHandle = gPlatformManagerPrivate.HiiHandle;
+
+  //
+  // Allocate space for creation of UpdateData Buffer
+  //
+  StartOpCodeHandle = HiiAllocateOpCodeHandle ();
+  ASSERT (StartOpCodeHandle != NULL);
+
+  EndOpCodeHandle = HiiAllocateOpCodeHandle ();
+  ASSERT (EndOpCodeHandle != NULL);
+
+  //
+  // Create Hii Extend Label OpCode as the start opcode
+  //
+  StartLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                       StartOpCodeHandle,
+                                       &gEfiIfrTianoGuid,
+                                       NULL,
+                                       sizeof (EFI_IFR_GUID_LABEL)
+                                       );
+  ASSERT (StartLabel != NULL);
+  StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+  //
+  // According to the next show Form id(mNextShowFormId) to decide which form need to update.
+  //
+  StartLabel->Number       = (UINT16)(LABEL_FORM_ID_OFFSET + NextShowFormId);
+
+  //
+  // Create Hii Extend Label OpCode as the end opcode
+  //
+  EndLabel = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (
+                                     EndOpCodeHandle,
+                                     &gEfiIfrTianoGuid,
+                                     NULL,
+                                     sizeof (EFI_IFR_GUID_LABEL)
+                                     );
+  ASSERT (EndLabel != NULL);
+  EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+  EndLabel->Number       = LABEL_END;
+
+  //
+  // Get all the Hii handles
+  //
+  HiiHandles = HiiGetHiiHandles (NULL);
+  ASSERT (HiiHandles != NULL);
+
+  //
+  // Search for formset of each class type
+  //
+  for (Index = 0; HiiHandles[Index] != NULL; Index++) {
+    Status = HiiGetFormSetFromHiiHandle (HiiHandles[Index], &Buffer,&BufferSize);
+    if (EFI_ERROR (Status)) {
+      continue;
+    }
+
+    Ptr = (UINT8 *)Buffer;
+
+    while(TempSize < BufferSize) {
+      TempSize += ((EFI_IFR_OP_HEADER *)Ptr)->Length;
+      if (((EFI_IFR_OP_HEADER *)Ptr)->Length <= OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
+        Ptr += ((EFI_IFR_OP_HEADER *)Ptr)->Length;
+        continue;
+      }
+
+      ClassGuidNum = (UINT8)(((EFI_IFR_FORM_SET *)Ptr)->Flags & 0x3);
+      ClassGuid = (EFI_GUID *)(VOID *)(Ptr + sizeof (EFI_IFR_FORM_SET));
+      while (ClassGuidNum-- > 0) {
+        if (CompareGuid (&gPlatformManagerFormsetGuid, ClassGuid)== 0) {
+          ClassGuid++;
+          continue;
+        }
+
+        String = HiiGetString (HiiHandles[Index], ((EFI_IFR_FORM_SET *)Ptr)->FormSetTitle, NULL);
+        if (String == NULL) {
+          String = HiiGetString (HiiHandle, STRING_TOKEN (STR_MISSING_STRING), NULL);
+          ASSERT (String != NULL);
+        }
+        Token = HiiSetString (HiiHandle, 0, String, NULL);
+        FreePool (String);
+
+        String = HiiGetString (HiiHandles[Index], ((EFI_IFR_FORM_SET *)Ptr)->Help, NULL);
+        if (String == NULL) {
+          String = HiiGetString (HiiHandle, STRING_TOKEN (STR_MISSING_STRING), NULL);
+          ASSERT (String != NULL);
+        }
+        TokenHelp = HiiSetString (HiiHandle, 0, String, NULL);
+        FreePool (String);
+
+        CopyMem (&FormSetGuid, &((EFI_IFR_FORM_SET *)Ptr)->Guid, sizeof (EFI_GUID));
+
+        if (NextShowFormId == PLATFORM_MANAGER_FORM_ID) {
+          DevicePathStr = PmExtractDevicePathFromHiiHandle (HiiHandles[Index]);
+          DevicePathId  = 0;
+          if (DevicePathStr != NULL) {
+            DevicePathId =  HiiSetString (HiiHandle, 0, DevicePathStr, NULL);
+            FreePool (DevicePathStr);
+          }
+
+          HiiCreateGotoExOpCode (
+            StartOpCodeHandle,
+            0,
+            Token,
+            TokenHelp,
+            0,
+            (EFI_QUESTION_ID)(Index + ENTRY_KEY_OFFSET),
+            0,
+            &FormSetGuid,
+            DevicePathId
+            );
+        }
+        break;
+      }
+
+      Ptr += ((EFI_IFR_OP_HEADER *)Ptr)->Length;
+    }
+
+    FreePool (Buffer);
+    Buffer = NULL;
+    TempSize = 0;
+    BufferSize = 0;
+  }
+
+  HiiUpdateForm (
+    HiiHandle,
+    &mPlatformManagerGuid,
+    NextShowFormId,
+    StartOpCodeHandle,
+    EndOpCodeHandle
+    );
+
+  HiiFreeOpCodeHandle (StartOpCodeHandle);
+  HiiFreeOpCodeHandle (EndOpCodeHandle);
+  FreePool (HiiHandles);
+}
+
+/**
+  Install Boot Manager Menu driver.
+
+  @param ImageHandle     The image handle.
+  @param SystemTable     The system table.
+
+  @retval  EFI_SUCEESS  Install Boot manager menu success.
+  @retval  Other        Return error status.
+
+**/
+EFI_STATUS
+EFIAPI
+PlatformManagerUiLibConstructor (
+  IN EFI_HANDLE       ImageHandle,
+  IN EFI_SYSTEM_TABLE *SystemTable
+  )
+{
+  EFI_STATUS Status;
+  EFI_EVENT  PlatformUiEntryEvent;
+
+  gPlatformManagerPrivate.DriverHandle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &gPlatformManagerPrivate.DriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  &mPlatformManagerHiiVendorDevicePath,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Publish our HII data.
+  //
+  gPlatformManagerPrivate.HiiHandle = HiiAddPackages (
+                                        &mPlatformManagerGuid,
+                                        gPlatformManagerPrivate.DriverHandle,
+                                        PlatformManagerVfrBin,
+                                        PlatformManagerUiLibStrings,
+                                        NULL
+                                        );
+  if (gPlatformManagerPrivate.HiiHandle != NULL) {
+    //
+    // Update platform manager page
+    //
+    CreatePlatformManagerForm (PLATFORM_MANAGER_FORM_ID);
+  } else {
+    DEBUG ((DEBUG_ERROR, "%a: Failed to add Hii package\n", __FUNCTION__));
+    return EFI_INVALID_PARAMETER;
+  }
+
+  // Signal Entry event
+  Status = gBS->CreateEventEx (
+                  EVT_NOTIFY_SIGNAL,
+                  TPL_CALLBACK,
+                  EfiEventEmptyFunction,
+                  NULL,
+                  &gPlatformManagerEntryEventGuid,
+                  &PlatformUiEntryEvent
+                  );
+  ASSERT_EFI_ERROR (Status);
+  gBS->SignalEvent (PlatformUiEntryEvent);
+  gBS->CloseEvent (PlatformUiEntryEvent);
+
+  return EFI_SUCCESS;
+}
+
+/**
+  Unloads the application and its installed protocol.
+
+  @param  ImageHandle     Handle that identifies the image to be unloaded.
+  @param  SystemTable     The system table.
+
+  @retval EFI_SUCCESS           The image has been unloaded.
+**/
+EFI_STATUS
+EFIAPI
+PlatformManagerUiLibDestructor (
+  IN EFI_HANDLE       ImageHandle,
+  IN EFI_SYSTEM_TABLE *SystemTable
+  )
+{
+  EFI_STATUS Status;
+  EFI_EVENT  PlatformUiExitEvent;
+
+  Status = gBS->UninstallMultipleProtocolInterfaces (
+                  gPlatformManagerPrivate.DriverHandle,
+                  &gEfiDevicePathProtocolGuid,
+                  &mPlatformManagerHiiVendorDevicePath,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  HiiRemovePackages (gPlatformManagerPrivate.HiiHandle);
+
+  // Signal Exit event
+  Status = gBS->CreateEventEx (
+                  EVT_NOTIFY_SIGNAL,
+                  TPL_CALLBACK,
+                  EfiEventEmptyFunction,
+                  NULL,
+                  &gPlatformManagerExitEventGuid,
+                  &PlatformUiExitEvent
+                  );
+  ASSERT_EFI_ERROR (Status);
+  gBS->SignalEvent (PlatformUiExitEvent);
+  gBS->CloseEvent (PlatformUiExitEvent);
+
+  return EFI_SUCCESS;
+}
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerStrings.uni b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerStrings.uni
new file mode 100644
index 000000000000..3bb39413bc4b
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerStrings.uni
@@ -0,0 +1,21 @@
+//
+// Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+
+/=#
+
+#langdef   en-US "English"
+
+#string STR_EDKII_MENU_TITLE           #language en-US  "Platform Manager"
+#string STR_EDKII_MENU_HELP            #language en-US  "This selection will take you to the Platform Manager"
+#string STR_PLATFORM_LIST              #language en-US  "Platform Configuration"
+#string STR_MISSING_STRING             #language en-US  "Missing String"
+#string STR_EMPTY_STRING               #language en-US  ""
+#string STR_EXIT_STRING                #language en-US  "Press ESC to exit."
+//
+// Ensure that this is the last string.  We are using it programmatically
+// to do string token re-usage settings for the Device Manager since we are
+// constantly recreating this page based on HII population.
+////
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.uni b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.uni
new file mode 100644
index 000000000000..217a7e999dab
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerUiLib.uni
@@ -0,0 +1,13 @@
+//
+// Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+
+#string STR_MODULE_ABSTRACT
+#language en-US
+"Platform Manager Library used by UiApp"
+
+#string STR_MODULE_DESCRIPTION
+#language en-US
+"Platform Manager Library used by UiApp"
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.Vfr b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.Vfr
new file mode 100644
index 000000000000..bfda75319416
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/PlatformUiLib/PlatformManagerVfr.Vfr
@@ -0,0 +1,29 @@
+/** @file
+
+  Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Guid/HiiPlatformSetupFormset.h>
+#include "PlatformManagerVfr.h"
+
+formset
+  guid      = FORMSET_GUID,
+  title     = STRING_TOKEN(STR_EDKII_MENU_TITLE),
+  help      = STRING_TOKEN(STR_EDKII_MENU_HELP),
+  classguid = EFI_HII_PLATFORM_SETUP_FORMSET_GUID,
+
+  form formid = PLATFORM_MANAGER_FORM_ID,
+    title  = STRING_TOKEN(STR_EDKII_MENU_TITLE);
+    subtitle text = STRING_TOKEN(STR_PLATFORM_LIST);
+
+    label LABEL_ENTRY_LIST;
+    label LABEL_END;
+
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
+    subtitle text = STRING_TOKEN(STR_EMPTY_STRING);
+    subtitle text = STRING_TOKEN(STR_EXIT_STRING);
+  endform;
+endformset;
-- 
2.17.1