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diff --git a/src/usr/runtime/hdatservice.H b/src/usr/runtime/hdatservice.H
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+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/runtime/hdatservice.H $                               */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2011,2013              */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __RUNTIME_HDATSERVICE_H
+#define __RUNTIME_HDATSERVICE_H
+
+#include <sys/sync.h>
+#include <util/locked/list.H>
+#include <list>
+#include <errl/errlentry.H>
+#include <usr/devicefw/driverif.H>
+#include <attributestructs.H>
+#include <sys/task.h>
+#include <usr/fsi/fsiif.H>
+
+namespace RUNTIME
+{
+    /** @file hdatservice.H
+     *  @brief Provides the definition of the HDAT Service class
+     */
+
+    /**
+     * Class to service HDAT data
+     *   there will be a single instance within hostboot
+     */
+    class hdatService
+    {
+      public:
+
+        /**
+         * @brief  Add the host data mainstore location to VMM
+         *
+         * @description  If running with the standard PHYP payload this function
+         *    will map all supported HDAT sections into the VMM to allow access
+         *    from user space.  When running in standalone (no payload) mode,
+         *    some reserved memory will be mapped in for testcases.  If AVPs are
+         *    enabled, no memory will be mapped and the PAYLOAD_KIND attribute
+         *    will be set appropriately.
+         *
+         * @return errlHndl_t  NULL on success
+         */
+        errlHndl_t loadHostData( void );
+
+        /**
+         * @brief  Get a pointer to the beginning of a particular section of
+         *         the host data memory.
+         *
+         * @description  The returned pointer will not include any hdat header
+         *     information.
+         *
+         * @param[in] i_section  Chunk of data to find
+         * @param[in] i_instance  Instance of section when there are multiple
+         *                        entries
+         * @param[out] o_dataAddr  Virtual memory address of data
+         * @param[out] o_dataSize  Size of data in bytes, 0 on error,
+         *                         DATA_SIZE_UNKNOWN if unknown
+         *
+         * @return errlHndl_t  NULL on success
+         */
+        errlHndl_t getHostDataSection( SectionId i_section,
+                                       uint64_t i_instance,
+                                       uint64_t& o_dataAddr,
+                                       size_t& o_dataSize );
+
+
+      protected:
+        /**
+         * @brief Constructor
+         */
+        hdatService();
+
+
+        /**
+         * @brief Destructor
+         */
+        ~hdatService();
+
+        /**
+         * @brief Retrieve hardcoded section addresses for standalone mode
+         *
+         * This is here to allow us to manually generate attribute data for
+         *  the HostServices code without requiring a full FipS/PHYP boot.
+         *
+         * @param[in] i_section  Chunk of data to find
+         * @param[in] i_instance  Instance of section when there are multiple
+         *                        entries
+         * @param[out] o_dataAddr  Virtual memory address of data
+         * @param[out] o_dataSize  Size of data in bytes, 0 on error,
+         *                         DATA_SIZE_UNKNOWN if unknown
+         *
+         * @return errlHndl_t  NULL on success
+         */
+        errlHndl_t get_standalone_section( RUNTIME::SectionId i_section,
+                                           uint64_t i_instance,
+                                           uint64_t& o_dataAddr,
+                                           size_t& o_dataSize );
+
+      private:
+
+        /********************************************
+         * VARIABLES
+         ********************************************/
+
+        /**
+         * Virtual address to payload base addr
+         (HDAT area is offset from there)
+         */
+        void * iv_payload_addr;
+        void * iv_dumptest_addr;
+
+    };
+
+};
+#endif