pci.hh revision 10388 
14202Sbinkertn@umich.edu/*
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374202Sbinkertn@umich.edu * Authors: Andreas Sandberg
385192Ssaidi@eecs.umich.edu */
395192Ssaidi@eecs.umich.edu
405192Ssaidi@eecs.umich.edu#ifndef __DEV_VIRTIO_PCI_HH__
415192Ssaidi@eecs.umich.edu#define __DEV_VIRTIO_PCI_HH__
425192Ssaidi@eecs.umich.edu
43#include "base/statistics.hh"
44#include "dev/virtio/base.hh"
45#include "dev/pcidev.hh"
46
47struct PciVirtIOParams;
48
49class PciVirtIO : public PciDevice
50{
51  public:
52    typedef PciVirtIOParams Params;
53    PciVirtIO(const Params *params);
54    virtual ~PciVirtIO();
55
56    Tick read(PacketPtr pkt);
57    Tick write(PacketPtr pkt);
58
59    void kick();
60
61  protected:
62    /** @{ */
63    /** Offsets into VirtIO header (BAR0 relative). */
64
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;
74
75    /** @} */
76
77    static const Addr BAR0_SIZE_BASE = OFF_VIO_DEVICE;
78
79
80    VirtIODeviceBase::QueueID queueNotify;
81
82    bool interruptDeliveryPending;
83
84    VirtIODeviceBase &vio;
85
86    MakeCallback<PciVirtIO, &PciVirtIO::kick> callbackKick;
87};
88
89#endif // __DEV_VIRTIO_PCI_HH__
90