1 files changed, 4 insertions, 2 deletions
diff --git a/MdePkg/Include/Library/DebugLib.h b/MdePkg/Include/Library/DebugLib.h
index 7bb964faa6..f969ce2317 100644
--- a/MdePkg/Include/Library/DebugLib.h
+++ b/MdePkg/Include/Library/DebugLib.h
@@ -8,7 +8,7 @@
   of size reduction when compiler optimization is disabled. If MDEPKG_NDEBUG is
   defined, then debug and assert related macros wrapped by it are the NULL implementations.
 
-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 that accompanies this distribution.  
 The full text of the license may be found at
@@ -41,7 +41,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define DEBUG_FS        0x00000008  // EFI File system
 #define DEBUG_POOL      0x00000010  // Alloc & Free's
 #define DEBUG_PAGE      0x00000020  // Alloc & Free's
-#define DEBUG_INFO      0x00000040  // Verbose
+#define DEBUG_INFO      0x00000040  // Informational debug messages
 #define DEBUG_DISPATCH  0x00000080  // PEI/DXE/SMM Dispatchers
 #define DEBUG_VARIABLE  0x00000100  // Variable
 #define DEBUG_BM        0x00000400  // Boot Manager
@@ -52,6 +52,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define DEBUG_EVENT     0x00080000  // Event messages
 #define DEBUG_GCD       0x00100000  // Global Coherency Database changes
 #define DEBUG_CACHE     0x00200000  // Memory range cachability changes
+#define DEBUG_VERBOSE   0x00400000  // Detailed debug messages that may significantly impact boot performance
 #define DEBUG_ERROR     0x80000000  // Error
 
 //
@@ -72,6 +73,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define EFI_D_UNDI      DEBUG_UNDI
 #define EFI_D_LOADFILE  DEBUG_LOADFILE
 #define EFI_D_EVENT     DEBUG_EVENT
+#define EFI_D_VERBOSE   DEBUG_VERBOSE
 #define EFI_D_ERROR     DEBUG_ERROR
 
 /**