when the password is not supported, pop up a dialogue
to let user know the reason.

Cc: Liming Gao <liming....@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan...@intel.com>
---
 MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c      | 3 +++
 MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h      | 3 ++-
 MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni | 7 +++++--
 MdeModulePkg/Universal/DisplayEngineDxe/ProcessOptions.c   | 5 +++++
 4 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c 
b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
index 32fc920..07c3454 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
@@ -151,10 +151,11 @@ CHAR16            *gConfirmExitMsg2nd;
 CHAR16            *gConfirmOpt;
 CHAR16            *gConfirmOptYes;
 CHAR16            *gConfirmOptNo;
 CHAR16            *gConfirmMsgConnect;
 CHAR16            *gConfirmMsgEnd;
+CHAR16            *gPasswordUnsupported;
 CHAR16            gModalSkipColumn;
 CHAR16            gPromptBlockWidth;
 CHAR16            gOptionBlockWidth;
 CHAR16            gHelpBlockWidth;
 CHAR16            *mUnknownString;
@@ -246,10 +247,11 @@ InitializeDisplayStrings (
   gConfirmOpt           = GetToken (STRING_TOKEN (CONFIRM_OPTION), gHiiHandle);
   gConfirmOptYes        = GetToken (STRING_TOKEN (CONFIRM_OPTION_YES), 
gHiiHandle);
   gConfirmOptNo         = GetToken (STRING_TOKEN (CONFIRM_OPTION_NO), 
gHiiHandle);
   gConfirmMsgConnect    = GetToken (STRING_TOKEN (CONFIRM_OPTION_CONNECT), 
gHiiHandle);
   gConfirmMsgEnd        = GetToken (STRING_TOKEN (CONFIRM_OPTION_END), 
gHiiHandle);
+  gPasswordUnsupported  = GetToken (STRING_TOKEN (PASSWORD_NOT_SUPPORTED ), 
gHiiHandle);
 }
 
 /**
   Free up the resource allocated for all strings required
   by Setup Browser.
@@ -299,10 +301,11 @@ FreeDisplayStrings (
   FreePool (gConfirmOpt);
   FreePool (gConfirmOptYes);
   FreePool (gConfirmOptNo);
   FreePool (gConfirmMsgConnect);
   FreePool (gConfirmMsgEnd);
+  FreePool (gPasswordUnsupported);
 }
 
 /**
   Get prompt string id from the opcode data buffer.
 
diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h 
b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h
index 063e94c..45532ab 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h
@@ -1,9 +1,9 @@
 /** @file
   FormDiplay protocol to show Form
 
-Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2013 - 2016, 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 that accompanies this 
distribution.  
 The full text of the license may be found at
 http://opensource.org/licenses/bsd-license.php.                                
            
 
@@ -56,10 +56,11 @@ extern CHAR16            *gPressEnter;
 extern CHAR16            *gEmptyString;
 extern CHAR16            *gMiniString;
 extern CHAR16            *gOptionMismatch;
 extern CHAR16            *gFormSuppress;
 extern CHAR16            *gProtocolNotFound;
+extern CHAR16            *gPasswordUnsupported;
 
 extern CHAR16            gPromptBlockWidth;
 extern CHAR16            gOptionBlockWidth;
 extern CHAR16            gHelpBlockWidth;
 extern CHAR16            *mUnknownString;
diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni 
b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni
index 802a1b3..bd9c8b4 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni
@@ -1,8 +1,8 @@
 // *++
 //
-// Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
+// Copyright (c) 2004 - 2016, 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
 //
@@ -114,6 +114,9 @@
 #string RECONNECT_CHANGES_OPTIONS      #language en-US  "Press 'Y' to save, 
'N' to discard"
                                        #language fr-FR  "Press 'Y' to save, 
'N' to discard"
 #string RECONNECT_REQUIRED             #language en-US  "Reconnect is 
required, exit and reconnect"
                                        #language fr-FR  "Reconnect is 
required, exit and reconnect"
 #string GET_TIME_FAIL                  #language en-US  " Get date/time fail, 
display ??."
-                                       #language fr-FR  " Get data/time fail, 
display ??."
\ No newline at end of file
+                                       #language fr-FR  " Get data/time fail, 
display ??."
+#string PASSWORD_NOT_SUPPORTED         #language en-US  "Unsupported! Because 
no interactieve flag or no ConfigAccess protocol!"
+                                       #language fr-FR  "Unsupported! Because 
no interactieve flag or no ConfigAccess protocol!"
+
diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/ProcessOptions.c 
b/MdeModulePkg/Universal/DisplayEngineDxe/ProcessOptions.c
index c61a395..95bd5f0 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/ProcessOptions.c
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/ProcessOptions.c
@@ -812,10 +812,15 @@ PasswordProcess (
   Status = Question->PasswordCheck (gFormData, Question, StringPtr);
   if (Status == EFI_NOT_AVAILABLE_YET || Status == EFI_UNSUPPORTED) {
     //
     // Password can't be set now. 
     //
+    if (Status == EFI_UNSUPPORTED) {
+      do {
+        CreateDialog (&Key, gEmptyString, gPasswordUnsupported, gPressEnter, 
gEmptyString, NULL);
+      } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
+    }
     FreePool (StringPtr);
     return EFI_SUCCESS;
   }
 
   if (EFI_ERROR (Status)) {
-- 
1.9.5.msysgit.1

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