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/*
* Copyright (c) 2014 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_VIRTIO_PCI_HH__
#define __DEV_VIRTIO_PCI_HH__
#include "base/statistics.hh"
#include "dev/virtio/base.hh"
#include "dev/pcidev.hh"
struct PciVirtIOParams;
class PciVirtIO : public PciDevice
{
public:
typedef PciVirtIOParams Params;
PciVirtIO(const Params *params);
virtual ~PciVirtIO();
Tick read(PacketPtr pkt);
Tick write(PacketPtr pkt);
void kick();
protected:
/** @{ */
/** Offsets into VirtIO header (BAR0 relative). */
static const Addr OFF_DEVICE_FEATURES = 0x00;
static const Addr OFF_GUEST_FEATURES = 0x04;
static const Addr OFF_QUEUE_ADDRESS = 0x08;
static const Addr OFF_QUEUE_SIZE = 0x0C;
static const Addr OFF_QUEUE_SELECT = 0x0E;
static const Addr OFF_QUEUE_NOTIFY = 0x10;
static const Addr OFF_DEVICE_STATUS = 0x12;
static const Addr OFF_ISR_STATUS = 0x13;
static const Addr OFF_VIO_DEVICE = 0x14;
/** @} */
static const Addr BAR0_SIZE_BASE = OFF_VIO_DEVICE;
VirtIODeviceBase::QueueID queueNotify;
bool interruptDeliveryPending;
VirtIODeviceBase &vio;
MakeCallback<PciVirtIO, &PciVirtIO::kick> callbackKick;
};
#endif // __DEV_VIRTIO_PCI_HH__
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