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/*
* Virtio PCI Bindings
*
* Copyright IBM, Corp. 2007
* Copyright (c) 2009 CodeSourcery
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Paul Brook <paul@codesourcery.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*/
#ifndef QEMU_VIRTIO_PCI_H
#define QEMU_VIRTIO_PCI_H
#include "hw/pci/msi.h"
#include "virtio-blk.h"
#include "virtio-net.h"
#include "virtio-rng.h"
#include "virtio-serial.h"
#include "virtio-scsi.h"
#include "virtio-bus.h"
typedef struct VirtIOPCIProxy VirtIOPCIProxy;
/* virtio-pci-bus */
typedef struct VirtioBusState VirtioPCIBusState;
typedef struct VirtioBusClass VirtioPCIBusClass;
#define TYPE_VIRTIO_PCI_BUS "virtio-pci-bus"
#define VIRTIO_PCI_BUS(obj) \
OBJECT_CHECK(VirtioPCIBusState, (obj), TYPE_VIRTIO_PCI_BUS)
#define VIRTIO_PCI_BUS_GET_CLASS(obj) \
OBJECT_GET_CLASS(VirtioPCIBusClass, obj, TYPE_VIRTIO_PCI_BUS)
#define VIRTIO_PCI_BUS_CLASS(klass) \
OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS)
/* Performance improves when virtqueue kick processing is decoupled from the
* vcpu thread using ioeventfd for some devices. */
#define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1
#define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT)
typedef struct {
MSIMessage msg;
int virq;
unsigned int users;
} VirtIOIRQFD;
/*
* virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
*/
#define TYPE_VIRTIO_PCI "virtio-pci"
#define VIRTIO_PCI_GET_CLASS(obj) \
OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI)
#define VIRTIO_PCI_CLASS(klass) \
OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI)
#define VIRTIO_PCI(obj) \
OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI)
typedef struct VirtioPCIClass {
PCIDeviceClass parent_class;
int (*init)(VirtIOPCIProxy *vpci_dev);
} VirtioPCIClass;
struct VirtIOPCIProxy {
PCIDevice pci_dev;
VirtIODevice *vdev;
MemoryRegion bar;
uint32_t flags;
uint32_t class_code;
uint32_t nvectors;
VirtIOBlkConf blk;
NICConf nic;
uint32_t host_features;
#ifdef CONFIG_VIRTFS
V9fsConf fsconf;
#endif
virtio_serial_conf serial;
virtio_net_conf net;
VirtIOSCSIConf scsi;
VirtIORNGConf rng;
bool ioeventfd_disabled;
bool ioeventfd_started;
VirtIOIRQFD *vector_irqfd;
int nvqs_with_notifiers;
VirtioBusState bus;
};
void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
void virtio_pci_reset(DeviceState *d);
void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev);
/* Virtio ABI version, if we increment this, we break the guest driver. */
#define VIRTIO_PCI_ABI_VERSION 0
#endif
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