1, PeiPcdLib use EFI_PEI_PCD_PPI defined in PI 1.2 to handle dynamicEx type PCD request.

[mirror_edk2.git] / MdePkg / Library / DxePcdLib / DxePcdLib.inf

diff --git a/MdePkg/Library/DxePcdLib/DxePcdLib.inf b/MdePkg/Library/DxePcdLib/DxePcdLib.inf
index cd2a1c8e178009450ba51625e7d9f96843c5054c..2958ed0a7cf723a554223b9f2dc51e5686512dbc 100644 (file)
--- a/MdePkg/Library/DxePcdLib/DxePcdLib.inf
+++ b/MdePkg/Library/DxePcdLib/DxePcdLib.inf
@@ -1,9 +1,19 @@
 #/** @file\r
 # Instance of PCD Library using PCD Protocol.\r
 #\r
-# PCD Library that uses the PCD Protocol to access Dynamic and DynamicEx PCD entries.\r
+# There are two PCD PPIs as follows:\r
+#   1) PCD_PROTOCOL\r
+#      It is EDKII implementation which support Dynamic/DynamicEx Pcds.\r
+#   2) EFI_PCD_PROTOCOL\r
+#      It is defined by PI specification 1.2, Vol 3 which only support dynamicEx \r
+#      type Pcd.\r
 #\r
-# Copyright (c) 2007 - 2008, Intel Corporation.\r
+# For dynamicEx type PCD, it is compatible between PCD_PROTOCOL and EFI_PCD_PROTOCOL.\r
+#\r
+# This library instance uses the PCD_PROTOCOL to handle dynamic PCD request and use\r
+# EFI_PCD_PROTOCOL to handle dynamicEx type PCD.\r
+#\r
+# Copyright (c) 2007 - 2009, Intel Corporation.\r
 #\r
 #  All rights reserved. This program and the accompanying materials\r
 #  are licensed and made available under the terms and conditions of the BSD License\r
@@ -44,7 +54,8 @@
 \r
 [Protocols]\r
   gPcdProtocolGuid                              ## CONSUMES\r
-\r
+  gEfiPcdProtocolGuid                           ## CONSUMES\r
+  \r
 [Depex]\r
-  gPcdProtocolGuid\r
+  gEfiPcdProtocolGuid\r
 \r