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diff --git a/src/usr/diag/attn/common/attnprd.H b/src/usr/diag/attn/common/attnprd.H
new file mode 100644
index 000000000..219d6926e
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+++ b/src/usr/diag/attn/common/attnprd.H
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+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/diag/attn/common/attnprd.H $                          */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2014                             */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __ATTN_ATTNPRD_H
+#define __ATTN_ATTNPRD_H
+
+/**
+ * @file attnprd.H
+ *
+ * @brief HBATTN PRD wrapper class definitions.
+ */
+
+#include "common/attnfwd.H"
+
+namespace ATTN
+{
+
+/**
+ * @brief PrdImpl PRD implementation interface requirement.
+ *
+ * Default implementation forwards call to real PRD.
+ */
+class PrdImpl
+{
+    public:
+
+        /**
+         * @brief callPrd Forward PRD call to real PRD.
+         *
+         * @param[in] i_attentions List of attentions for PRD to analyze.
+         *
+         * @return errlHndl_t Error log.
+         *
+         * @retval[0] No error occurred.
+         * @retval[!0] Unexpected error occurred.
+         */
+        virtual errlHndl_t callPrd(const AttentionList & i_attentions);
+
+        /**
+         * @brief installPrd
+         *
+         * Make this the active PRD implementation.
+         */
+        void installPrd();
+
+        /**
+         * @brief dtor
+         */
+        virtual ~PrdImpl() {}
+
+        /**
+         * @brief ctor
+         */
+        PrdImpl() {}
+};
+
+/**
+ * @brief PrdWrapper Hold the installed prd implementation.
+ */
+class PrdWrapper
+{
+    public:
+
+        /**
+         * @brief callPrd Route PRD call to the active PRD implementation.
+         *
+         * @param[in] i_attentions List of attentions for PRD to analyze.
+         *
+         * @return errlHndl_t Error log.
+         *
+         * @retval[0] No error occurred.
+         * @retval[!0] Unexpected error occurred.
+         */
+        errlHndl_t callPrd(const AttentionList & i_attentions);
+
+        /**
+         * @brief setImpl Set the active PRD implementation.
+         *
+         * @param[in] i_prd The PRD implementation to make active.
+         */
+        void setImpl(PrdImpl & i_prd)
+        {
+            iv_impl = &i_prd;
+        }
+
+        /**
+         * @brief ctor
+         */
+        PrdWrapper();
+
+    private:
+
+        /**
+         * @brief iv_impl The active PRD implementation.
+         */
+        PrdImpl * iv_impl;
+
+        /**
+         * @brief copy Disabled.
+         */
+        PrdWrapper(const PrdWrapper &);
+
+        /**
+         * @brief assignment Disabled.
+         */
+        PrdWrapper & operator=(const PrdWrapper &);
+};
+}
+#endif