diff options
Diffstat (limited to 'MdePkg/Library/DxePcdLib/DxePcdLib.inf')
| -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
|