diff options
| author | Liming Gao <liming.gao@intel.com> | 2014-11-19 02:47:02 +0000 |
|---|---|---|
| committer | lgao4 <lgao4@Edk2> | 2014-11-19 02:47:02 +0000 |
| commit | fdb5bc72b64e1a19894a55151b4d82c54f857958 (patch) | |
| tree | a5c3312fc285353459e729675a0b758ced0774c2 /MdePkg | |
| parent | c9e0bba3855c18728199b99dada6d03102ca331c (diff) | |
| download | edk2-platforms-fdb5bc72b64e1a19894a55151b4d82c54f857958.tar.xz | |
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
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Library/DxePcdLib/DxePcdLib.inf | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/MdePkg/Library/DxePcdLib/DxePcdLib.inf b/MdePkg/Library/DxePcdLib/DxePcdLib.inf index dfdd412115..23cd5d6e70 100644 --- a/MdePkg/Library/DxePcdLib/DxePcdLib.inf +++ b/MdePkg/Library/DxePcdLib/DxePcdLib.inf @@ -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
|