diff -r 4a4f2963aba7 -r ee5f72396d89 util/tlm/sim_control.hh
--- a/util/tlm/sim_control.hh	Mon Jan 30 17:49:53 2017 +0100
+++ b/util/tlm/sim_control.hh	Tue Jan 31 11:51:10 2017 +0100
@@ -77,6 +77,22 @@
     /// Pointer to a previously created instance.
     static Gem5SimControl* instance;
 
+    /** A callback that is called from the run thread before gem5 simulation is
+     * started.
+     *
+     * A derived class may use this to perform any additional initializations
+     * prior simulation.
+     */
+    virtual void beforeSimulate() {}
+
+    /** A callback that is called from the run thread after gem5 simulation
+     * completed.
+     *
+     * A derived class may use this to perform any additional tasks after gem5
+     * exits. For instance, a derived class could use this to call sc_stop().
+     */
+    virtual void afterSimulate() {}
+
   public:
     SC_HAS_PROCESS(Gem5SimControl);
 
diff -r 4a4f2963aba7 -r ee5f72396d89 util/tlm/sim_control.cc
--- a/util/tlm/sim_control.cc	Mon Jan 30 17:49:53 2017 +0100
+++ b/util/tlm/sim_control.cc	Tue Jan 31 11:51:10 2017 +0100
@@ -152,6 +152,9 @@
 void
 Gem5SimControl::run()
 {
+    // notify callback
+    beforeSimulate();
+
     GlobalSimLoopExitEvent *exit_event = NULL;
 
     if (simulationEnd == 0) {
@@ -165,6 +168,9 @@
 
     getEventQueue(0)->dump();
 
+    // notify callback
+    afterSimulate();
+
 #if TRY_CLEAN_DELETE
     config_manager->deleteObjects();
 #endif