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diff --git a/src/dev/arm/vio_mmio.hh b/src/dev/arm/vio_mmio.hh
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+/*
+ * Copyright (c) 2016-2018 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: Andreas Sandberg
+ */
+
+#ifndef __DEV_ARM_VIO_MMIO_HH__
+#define __DEV_ARM_VIO_MMIO_HH__
+
+#include "dev/io_device.hh"
+#include "dev/virtio/base.hh"
+
+class ArmInterruptPin;
+struct MmioVirtIOParams;
+
+class MmioVirtIO : public BasicPioDevice
+{
+  public:
+    MmioVirtIO(const MmioVirtIOParams *params);
+    virtual ~MmioVirtIO();
+
+  protected: // BasicPioDevice
+    Tick read(PacketPtr pkt) override;
+    Tick write(PacketPtr pkt) override;
+
+  protected:
+    /** @{ */
+    /** Offsets into VirtIO MMIO space. */
+
+    enum : Addr {
+        OFF_MAGIC = 0x00,
+        OFF_VERSION = 0x04,
+        OFF_DEVICE_ID = 0x08,
+        OFF_VENDOR_ID = 0x0C,
+        OFF_HOST_FEATURES = 0x10,
+        OFF_HOST_FEATURES_SELECT = 0x14,
+        OFF_GUEST_FEATURES = 0x20,
+        OFF_GUEST_FEATURES_SELECT = 0x24,
+        OFF_GUEST_PAGE_SIZE = 0x28,
+        OFF_QUEUE_SELECT = 0x30,
+        OFF_QUEUE_NUM_MAX = 0x34,
+        OFF_QUEUE_NUM = 0x38,
+        OFF_QUEUE_ALIGN = 0x3C,
+        OFF_QUEUE_PFN = 0x40,
+        OFF_QUEUE_NOTIFY = 0x50,
+        OFF_INTERRUPT_STATUS = 0x60,
+        OFF_INTERRUPT_ACK = 0x64,
+        OFF_STATUS = 0x70,
+        OFF_CONFIG = 0x100,
+    };
+
+    /** @} */
+
+    enum {
+        INT_USED_RING = 1 << 0,
+        INT_CONFIG = 1 << 1,
+    };
+
+    static const uint32_t MAGIC = 0x74726976;
+    static const uint32_t VERSION = 1;
+    static const uint32_t VENDOR_ID = 0x1AF4;
+
+
+    uint32_t read(Addr offset);
+    void write(Addr offset, uint32_t value);
+
+    void kick();
+    void setInterrupts(uint32_t value);
+
+    uint32_t hostFeaturesSelect;
+    uint32_t guestFeaturesSelect;
+    uint32_t pageSize;
+    uint32_t interruptStatus;
+
+    MakeCallback<MmioVirtIO, &MmioVirtIO::kick> callbackKick;
+
+  protected: // Params
+    VirtIODeviceBase &vio;
+    ArmInterruptPin *const interrupt;
+};
+
+#endif // __DEV_ARM_VIO_MMIO_HH__