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diff --git a/src/mem/qos/QoSMemCtrl.py b/src/mem/qos/QoSMemCtrl.py
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+# Copyright (c) 2018 ARM Limited
+# All rights reserved.
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder.  You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# 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;
+# neither the name of the copyright holders 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
+# OWNER 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: Matteo Andreozzi
+
+from m5.params import *
+from AbstractMemory import AbstractMemory
+from QoSTurnaround import *
+
+# QoS Queue Selection policy used to select packets among same-QoS queues
+class QoSQPolicy(Enum): vals = ["fifo", "lifo", "lrg"]
+
+class QoSMemCtrl(AbstractMemory):
+    type = 'QoSMemCtrl'
+    cxx_header = "mem/qos/mem_ctrl.hh"
+    cxx_class = 'QoS::MemCtrl'
+    abstract = True
+
+    ##### QoS support parameters ####
+
+    # Number of priorities in the system
+    qos_priorities = Param.Unsigned(1, "QoS priorities")
+
+    # QoS scheduler policy: tags request with QoS priority value
+    qos_policy = Param.QoSPolicy(NULL,
+        "Memory Controller Requests QoS arbitration policy")
+
+    # Select QoS driven turnaround policy
+    # (direction switch triggered by highest priority buffer content)
+    qos_turnaround_policy = Param.QoSTurnaroundPolicy(NULL,
+        "Selects QoS driven turnaround policy")
+
+    # QoS Queue Select policy: selects packets among same priority level
+    # (only supported in QoSMemSinkCtrl)
+    qos_q_policy = Param.QoSQPolicy('fifo',
+        "Memory Controller Requests same-QoS selection policy")
+
+    # flag to select QoS syncronised scheduling
+    # (calls the scheduler on all masters at every packet arrival)
+    qos_syncro_scheduler = Param.Bool(False,
+        "Enables QoS syncronized scheduling")
+
+    # flag to enable QoS priority escalation
+    qos_priority_escalation = Param.Bool(False,
+        "Enables QoS priority escalation")
+
+    # Master ID to be mapped to service parameters in QoS schedulers
+    qos_masters = VectorParam.String(['']* 16,
+        "Master Names to be mapped to service parameters in QoS scheduler")