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diff --git a/src/include/usr/initservice/initsvcstructs.H b/src/include/usr/initservice/initsvcstructs.H
new file mode 100644
index 000000000..bc459da4b
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+++ b/src/include/usr/initservice/initsvcstructs.H
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+//  IBM_PROLOG_BEGIN_TAG
+//  This is an automatically generated prolog.
+//
+//  $Source: src/usr/initservice/common/initsvcstructs.H $
+//
+//  IBM CONFIDENTIAL
+//
+//  COPYRIGHT International Business Machines Corp. 2011
+//
+//  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 other-
+//  wise divested of its trade secrets, irrespective of what has
+//  been deposited with the U.S. Copyright Office.
+//
+//  Origin: 30
+//
+//  IBM_PROLOG_END
+#ifndef __COMMON_INITSVCSTRUCTS_H
+#define __COMMON_INITSVCSTRUCTS_H
+/**
+ *  @file initsvcstructs.H
+ *
+ *  common structs for initservice, extinitsvc, istepdispatcher
+ *
+ */
+
+/******************************************************************************/
+// Includes
+/******************************************************************************/
+#include <stdint.h>
+#include <sys/vfs.h>            // VFS_MODULE_MAX
+
+namespace   INITSERVICE
+{
+
+/******************************************************************************/
+// Globals/Constants
+/******************************************************************************/
+
+
+/******************************************************************************/
+// Typedef/Enumerations
+/******************************************************************************/
+
+/**
+ * @enum    TaskType
+ *  - NONE          ==  placeholder, no task
+ *  - INIT_TASK     ==  load and initialize task, but task has no _start()
+ *                      (extended image only)
+ *  - START_TASK    ==  BASE_IMAGE: call _start() function entry point
+ *                      EXT_IMAGE: call _init(), then _start()
+ *  - START_FN      ==  task with function pointer entry point
+ *  - UNINIT_TASK   ==  call _fini() to call static destructor(s) on the task.
+ *                      (extended image only)
+ *  - END_TASK_LIST ==  last entry in the task list.
+ */
+
+enum    TaskType
+{
+    UNDEFINED_TT    =   0,
+    NONE,
+    INIT_TASK,
+    START_TASK,
+    START_FN,
+    UNINIT_TASK,
+    END_TASK_LIST,
+};
+
+
+/**
+ * @enum    ModuleType
+ *  -   BASE_IMAGE == module in the base image
+ *  -   EXT_IMAGE == module in the extended image
+ */
+enum    ModuleType
+{
+    UNDEFINED_MT    =   0,
+    BASE_IMAGE,
+    EXT_IMAGE,
+};
+
+
+/**
+ * @struct  TaskFlags
+ *
+ *  - run _start() function on start
+ *  - module type, BASE_MODULE or EXT_MODULE
+ *  - module_id for errorlog if task fails
+ *
+ */
+struct  TaskFlags
+{
+    TaskType            task_type;          // task execution flags
+    ModuleType          module_type;        // BASE_IMAGE or EXT_IMAGE
+    InitServiceModuleID module_id;          // module id for errorlog
+};
+
+
+/**
+ * @struct  TaskInfo
+ *
+ * Holds information on each task in the system.
+ *      - taskname
+ *      - execution flags, see TaskFlags above
+ *
+ */
+struct  TaskInfo
+{
+    const   char        taskname[VFS_MODULE_NAME_MAX];
+    void                (*taskfn)(void *ptr);
+    const   TaskFlags   taskflags;
+
+};
+
+} // namespace
+
+#endif