From 568e7b27772ccc003f75c361943a228a2c1ebba2 Mon Sep 17 00:00:00 2001
From: gdong1 <gdong1@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Wed, 9 May 2012 08:24:29 +0000
Subject: [PATCH] Fix always reboot issue for an invalid physical presence
 operation request.

Signed-off by: Dong Guo <guo.dong@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ouyang, Qian <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13297 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../DxeTcgPhysicalPresenceLib.c               | 23 ++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/SecurityPkg/Library/DxeTcgPhysicalPresenceLib/DxeTcgPhysicalPresenceLib.c b/SecurityPkg/Library/DxeTcgPhysicalPresenceLib/DxeTcgPhysicalPresenceLib.c
index 18d87ebe74..bee311bed8 100644
--- a/SecurityPkg/Library/DxeTcgPhysicalPresenceLib/DxeTcgPhysicalPresenceLib.c
+++ b/SecurityPkg/Library/DxeTcgPhysicalPresenceLib/DxeTcgPhysicalPresenceLib.c
@@ -2,7 +2,7 @@
 
   Execute pending TPM requests from OS or BIOS and Lock TPM.
 
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2012, 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 
@@ -936,6 +936,23 @@ ExecutePendingTpmRequest (
     case PHYSICAL_PRESENCE_SET_NO_PPI_MAINTENANCE_FALSE:
       RequestConfirmed = TRUE;
       break;
+      
+    default:
+      //
+      // Invalid operation request.
+      //
+      TcgPpData->PPResponse = TPM_PP_BIOS_FAILURE;
+      TcgPpData->LastPPRequest = TcgPpData->PPRequest;
+      TcgPpData->PPRequest = PHYSICAL_PRESENCE_NO_ACTION;
+      DataSize = sizeof (EFI_PHYSICAL_PRESENCE);
+      Status = gRT->SetVariable (
+                      PHYSICAL_PRESENCE_VARIABLE,
+                      &gEfiPhysicalPresenceGuid,
+                      EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+                      DataSize,
+                      TcgPpData
+                      );
+      return;
   }
 
   if ((Flags & FLAG_RESET_TRACK) != 0) {
@@ -965,7 +982,7 @@ ExecutePendingTpmRequest (
   //
   if ((TcgPpData->Flags & FLAG_RESET_TRACK) == 0) {
     TcgPpData->LastPPRequest = TcgPpData->PPRequest;
-    TcgPpData->PPRequest = 0;    
+    TcgPpData->PPRequest = PHYSICAL_PRESENCE_NO_ACTION;    
   }
 
   //
@@ -1004,7 +1021,7 @@ ExecutePendingTpmRequest (
     case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE:      
       break;
     default:
-      if (TcgPpData->PPRequest != 0) {
+      if (TcgPpData->PPRequest != PHYSICAL_PRESENCE_NO_ACTION) {
         break;
       }
       return;
-- 
2.39.2