blob: f8404de92b23486a7e571ac3974e24d1cd7b4509 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* 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 "virtio-net.h"
#include "virtio-serial.h"
/* 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 {
PCIDevice pci_dev;
VirtIODevice *vdev;
MemoryRegion bar;
MemoryRegion msix_bar;
uint32_t flags;
uint32_t class_code;
uint32_t nvectors;
BlockConf block;
char *block_serial;
NICConf nic;
uint32_t host_features;
#ifdef CONFIG_LINUX
V9fsConf fsconf;
#endif
virtio_serial_conf serial;
virtio_net_conf net;
bool ioeventfd_disabled;
bool ioeventfd_started;
} VirtIOPCIProxy;
void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
/* Virtio ABI version, if we increment this, we break the guest driver. */
#define VIRTIO_PCI_ABI_VERSION 0
#endif
|
