mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-25 12:40:08 +00:00
085bccb72c
Create the virtio-pci device which is abstract. This transport device will create a virtio-pci-bus, so one VirtIODevice can be connected. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
|
|
* 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_LINUX
|
|
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
|