Revision: 16403
http://sourceforge.net/p/edk2/code/16403
Author: lgao4
Date: 2014-11-19 02:47:02 +0000 (Wed, 19 Nov 2014)
Log Message:
-----------
MdePkg DxePcdLib: Updates DxePcdLib instance comments.
Describe PCD service can?\226?\128?\153t be used at Runtime phase.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <[email protected]>
Reviewed-by: Star Zeng <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdePkg/Library/DxePcdLib/DxePcdLib.inf
Modified: trunk/edk2/MdePkg/Library/DxePcdLib/DxePcdLib.inf
===================================================================
--- trunk/edk2/MdePkg/Library/DxePcdLib/DxePcdLib.inf 2014-11-19 02:30:21 UTC
(rev 16402)
+++ trunk/edk2/MdePkg/Library/DxePcdLib/DxePcdLib.inf 2014-11-19 02:47:02 UTC
(rev 16403)
@@ -13,6 +13,11 @@
# This library instance uses the PCD_PROTOCOL to handle dynamic PCD request
and use
# EFI_PCD_PROTOCOL to handle dynamicEx type PCD.
#
+# Note: A driver of type DXE_RUNTIME_DRIVER and DXE_SMM_DRIVER can only use
this DxePcdLib
+# in their initialization without any issues to access Dynamic and DynamicEx
PCD. They can't
+# access Dynamic and DynamicEx PCD in the implementation of runtime services
and SMI handlers.
+# Because EFI_PCD_PROTOCOL is DXE protocol that is not aviable in OS runtime
phase.
+#
# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
#
# This program and the accompanying materials
------------------------------------------------------------------------------
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