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diff --git a/util/tlm/src/sc_ext.hh b/util/tlm/src/sc_ext.hh
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+/*
+ * Copyright (c) 2015, University of Kaiserslautern
+ * Copyright (c) 2016, Dresden University of Technology (TU Dresden)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors:
+ *    Matthias Jung
+ *    Christian Menard
+ */
+
+#ifndef __SC_EXT_HH__
+#define __SC_EXT_HH__
+
+#include <systemc.h>
+#include <tlm.h>
+
+#include <iostream>
+
+#include "mem/packet.hh"
+
+namespace Gem5SystemC
+{
+
+class Gem5Extension: public tlm::tlm_extension<Gem5Extension>
+{
+  public:
+    Gem5Extension(PacketPtr packet);
+
+    virtual tlm_extension_base* clone() const;
+    virtual void copy_from(const tlm_extension_base& ext);
+
+    static Gem5Extension&
+        getExtension(const tlm::tlm_generic_payload *payload);
+    static Gem5Extension&
+        getExtension(const tlm::tlm_generic_payload &payload);
+    PacketPtr getPacket();
+
+    bool isPipeThrough() const { return pipeThrough; }
+    void setPipeThrough() { pipeThrough = true; }
+
+  private:
+    PacketPtr Packet;
+    bool pipeThrough;
+};
+
+}
+
+#endif