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
|
/*
* libqos driver framework
*
* Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>
*/
#include "qemu/osdep.h"
#include "libqtest.h"
#include "libqos/qgraph.h"
#include "libqos/virtio-balloon.h"
/* virtio-balloon-device */
static void *qvirtio_balloon_get_driver(QVirtioBalloon *v_balloon,
const char *interface)
{
if (!g_strcmp0(interface, "virtio-balloon")) {
return v_balloon;
}
if (!g_strcmp0(interface, "virtio")) {
return v_balloon->vdev;
}
fprintf(stderr, "%s not present in virtio-balloon-device\n", interface);
g_assert_not_reached();
}
static void *qvirtio_balloon_device_get_driver(void *object,
const char *interface)
{
QVirtioBalloonDevice *v_balloon = object;
return qvirtio_balloon_get_driver(&v_balloon->balloon, interface);
}
static void *virtio_balloon_device_create(void *virtio_dev,
QGuestAllocator *t_alloc,
void *addr)
{
QVirtioBalloonDevice *virtio_bdevice = g_new0(QVirtioBalloonDevice, 1);
QVirtioBalloon *interface = &virtio_bdevice->balloon;
interface->vdev = virtio_dev;
virtio_bdevice->obj.get_driver = qvirtio_balloon_device_get_driver;
return &virtio_bdevice->obj;
}
/* virtio-balloon-pci */
static void *qvirtio_balloon_pci_get_driver(void *object,
const char *interface)
{
QVirtioBalloonPCI *v_balloon = object;
if (!g_strcmp0(interface, "pci-device")) {
return v_balloon->pci_vdev.pdev;
}
return qvirtio_balloon_get_driver(&v_balloon->balloon, interface);
}
static void *virtio_balloon_pci_create(void *pci_bus, QGuestAllocator *t_alloc,
void *addr)
{
QVirtioBalloonPCI *virtio_bpci = g_new0(QVirtioBalloonPCI, 1);
QVirtioBalloon *interface = &virtio_bpci->balloon;
QOSGraphObject *obj = &virtio_bpci->pci_vdev.obj;
virtio_pci_init(&virtio_bpci->pci_vdev, pci_bus, addr);
interface->vdev = &virtio_bpci->pci_vdev.vdev;
obj->get_driver = qvirtio_balloon_pci_get_driver;
return obj;
}
static void virtio_balloon_register_nodes(void)
{
QPCIAddress addr = {
.devfn = QPCI_DEVFN(4, 0),
};
QOSGraphEdgeOptions opts = {
.extra_device_opts = "addr=04.0",
};
/* virtio-balloon-device */
qos_node_create_driver("virtio-balloon-device",
virtio_balloon_device_create);
qos_node_consumes("virtio-balloon-device", "virtio-bus", NULL);
qos_node_produces("virtio-balloon-device", "virtio");
qos_node_produces("virtio-balloon-device", "virtio-balloon");
/* virtio-balloon-pci */
add_qpci_address(&opts, &addr);
qos_node_create_driver("virtio-balloon-pci", virtio_balloon_pci_create);
qos_node_consumes("virtio-balloon-pci", "pci-bus", &opts);
qos_node_produces("virtio-balloon-pci", "pci-device");
qos_node_produces("virtio-balloon-pci", "virtio");
qos_node_produces("virtio-balloon-pci", "virtio-balloon");
}
libqos_init(virtio_balloon_register_nodes);
|
