2 * Copyright (c) 2014 ARM Limited
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 * Authors: Andreas Sandberg
40 #ifndef __DEV_VIRTIO_PCI_HH__
41 #define __DEV_VIRTIO_PCI_HH__
43 #include "base/statistics.hh"
44 #include "dev/virtio/base.hh"
45 #include "dev/pci/device.hh"
47 struct PciVirtIOParams;
49 class PciVirtIO : public PciDevice
52 typedef PciVirtIOParams Params;
53 PciVirtIO(const Params *params);
56 Tick read(PacketPtr pkt);
57 Tick write(PacketPtr pkt);
63 /** Offsets into VirtIO header (BAR0 relative). */
65 static const Addr OFF_DEVICE_FEATURES = 0x00;
66 static const Addr OFF_GUEST_FEATURES = 0x04;
67 static const Addr OFF_QUEUE_ADDRESS = 0x08;
68 static const Addr OFF_QUEUE_SIZE = 0x0C;
69 static const Addr OFF_QUEUE_SELECT = 0x0E;
70 static const Addr OFF_QUEUE_NOTIFY = 0x10;
71 static const Addr OFF_DEVICE_STATUS = 0x12;
72 static const Addr OFF_ISR_STATUS = 0x13;
73 static const Addr OFF_VIO_DEVICE = 0x14;
77 static const Addr BAR0_SIZE_BASE = OFF_VIO_DEVICE;
80 VirtIODeviceBase::QueueID queueNotify;
82 bool interruptDeliveryPending;
84 VirtIODeviceBase &vio;
86 MakeCallback<PciVirtIO, &PciVirtIO::kick> callbackKick;
89 #endif // __DEV_VIRTIO_PCI_HH__