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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* 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 "hw/virtio/virtio-blk.h"
#include "hw/virtio/virtio-net.h"
#include "hw/virtio/virtio-rng.h"
#include "hw/virtio/virtio-serial.h"
#include "hw/virtio/virtio-scsi.h"
#include "hw/virtio/virtio-balloon.h"
#include "hw/virtio/virtio-bus.h"
#include "hw/virtio/virtio-9p.h"
#ifdef CONFIG_VIRTFS
#include "hw/9pfs/virtio-9p.h"
#endif
#ifdef CONFIG_VHOST_SCSI
#include "hw/virtio/vhost-scsi.h"
#endif
typedef struct VirtIOPCIProxy VirtIOPCIProxy;
typedef struct VirtIOBlkPCI VirtIOBlkPCI;
typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
typedef struct VirtIOSerialPCI VirtIOSerialPCI;
typedef struct VirtIONetPCI VirtIONetPCI;
typedef struct VHostSCSIPCI VHostSCSIPCI;
typedef struct VirtIORngPCI VirtIORngPCI;
/* 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)
/* Need to activate work-arounds for buggy guests at vmstate load. */
#define VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT 0
#define VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION \
(1 << VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT)
/* 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;
void (*realize)(VirtIOPCIProxy *vpci_dev, Error **errp);
} VirtioPCIClass;
struct VirtIOPCIProxy {
PCIDevice pci_dev;
MemoryRegion bar;
MemoryRegion common;
MemoryRegion isr;
MemoryRegion device;
MemoryRegion notify;
MemoryRegion modern_bar;
uint32_t flags;
uint32_t class_code;
uint32_t nvectors;
uint32_t dfselect;
uint32_t gfselect;
uint32_t guest_features[2];
struct {
uint16_t num;
bool enabled;
uint32_t desc[2];
uint32_t avail[2];
uint32_t used[2];
} vqs[VIRTIO_QUEUE_MAX];
bool ioeventfd_disabled;
bool ioeventfd_started;
VirtIOIRQFD *vector_irqfd;
int nvqs_with_notifiers;
VirtioBusState bus;
};
/*
* virtio-scsi-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_SCSI_PCI "virtio-scsi-pci"
#define VIRTIO_SCSI_PCI(obj) \
OBJECT_CHECK(VirtIOSCSIPCI, (obj), TYPE_VIRTIO_SCSI_PCI)
struct VirtIOSCSIPCI {
VirtIOPCIProxy parent_obj;
VirtIOSCSI vdev;
};
#ifdef CONFIG_VHOST_SCSI
/*
* vhost-scsi-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci"
#define VHOST_SCSI_PCI(obj) \
OBJECT_CHECK(VHostSCSIPCI, (obj), TYPE_VHOST_SCSI_PCI)
struct VHostSCSIPCI {
VirtIOPCIProxy parent_obj;
VHostSCSI vdev;
};
#endif
/*
* virtio-blk-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci"
#define VIRTIO_BLK_PCI(obj) \
OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI)
struct VirtIOBlkPCI {
VirtIOPCIProxy parent_obj;
VirtIOBlock vdev;
};
/*
* virtio-balloon-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci"
#define VIRTIO_BALLOON_PCI(obj) \
OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI)
struct VirtIOBalloonPCI {
VirtIOPCIProxy parent_obj;
VirtIOBalloon vdev;
};
/*
* virtio-serial-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci"
#define VIRTIO_SERIAL_PCI(obj) \
OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI)
struct VirtIOSerialPCI {
VirtIOPCIProxy parent_obj;
VirtIOSerial vdev;
};
/*
* virtio-net-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_NET_PCI "virtio-net-pci"
#define VIRTIO_NET_PCI(obj) \
OBJECT_CHECK(VirtIONetPCI, (obj), TYPE_VIRTIO_NET_PCI)
struct VirtIONetPCI {
VirtIOPCIProxy parent_obj;
VirtIONet vdev;
};
/*
* virtio-9p-pci: This extends VirtioPCIProxy.
*/
#ifdef CONFIG_VIRTFS
#define TYPE_VIRTIO_9P_PCI "virtio-9p-pci"
#define VIRTIO_9P_PCI(obj) \
OBJECT_CHECK(V9fsPCIState, (obj), TYPE_VIRTIO_9P_PCI)
typedef struct V9fsPCIState {
VirtIOPCIProxy parent_obj;
V9fsState vdev;
} V9fsPCIState;
#endif
/*
* virtio-rng-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci"
#define VIRTIO_RNG_PCI(obj) \
OBJECT_CHECK(VirtIORngPCI, (obj), TYPE_VIRTIO_RNG_PCI)
struct VirtIORngPCI {
VirtIOPCIProxy parent_obj;
VirtIORNG vdev;
};
/* Virtio ABI version, if we increment this, we break the guest driver. */
#define VIRTIO_PCI_ABI_VERSION 0
#endif
|
