MdePkg DxePcdLib: Updates DxePcdLib instance comments.

Describe PCD service can’t be used at Runtime phase.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16403 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Liming Gao 2014-11-19 02:47:02 +00:00 committed by lgao4
parent c9e0bba385
commit fdb5bc72b6
1 changed files with 5 additions and 0 deletions

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@ -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