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9d447257 EGE |
1 | /* |
2 | * libqos driver framework | |
3 | * | |
4 | * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, see <http://www.gnu.org/licenses/> | |
17 | */ | |
18 | ||
19 | #include "qemu/osdep.h" | |
20 | #include "libqtest.h" | |
0b8fa32f | 21 | #include "qemu/module.h" |
9d447257 EGE |
22 | #include "standard-headers/linux/virtio_ids.h" |
23 | #include "libqos/virtio-9p.h" | |
24 | #include "libqos/qgraph.h" | |
25 | ||
26 | static QGuestAllocator *alloc; | |
27 | ||
28 | static void virtio_9p_cleanup(QVirtio9P *interface) | |
29 | { | |
30 | qvirtqueue_cleanup(interface->vdev->bus, interface->vq, alloc); | |
31 | } | |
32 | ||
33 | static void virtio_9p_setup(QVirtio9P *interface) | |
34 | { | |
35 | interface->vq = qvirtqueue_setup(interface->vdev, alloc, 0); | |
36 | qvirtio_set_driver_ok(interface->vdev); | |
37 | } | |
38 | ||
39 | /* virtio-9p-device */ | |
40 | static void virtio_9p_device_destructor(QOSGraphObject *obj) | |
41 | { | |
42 | QVirtio9PDevice *v_9p = (QVirtio9PDevice *) obj; | |
43 | QVirtio9P *v9p = &v_9p->v9p; | |
44 | ||
45 | virtio_9p_cleanup(v9p); | |
46 | } | |
47 | ||
48 | static void virtio_9p_device_start_hw(QOSGraphObject *obj) | |
49 | { | |
50 | QVirtio9PDevice *v_9p = (QVirtio9PDevice *) obj; | |
51 | QVirtio9P *v9p = &v_9p->v9p; | |
52 | ||
53 | virtio_9p_setup(v9p); | |
54 | } | |
55 | ||
56 | static void *virtio_9p_get_driver(QVirtio9P *v_9p, | |
57 | const char *interface) | |
58 | { | |
59 | if (!g_strcmp0(interface, "virtio-9p")) { | |
60 | return v_9p; | |
61 | } | |
62 | if (!g_strcmp0(interface, "virtio")) { | |
63 | return v_9p->vdev; | |
64 | } | |
65 | ||
66 | fprintf(stderr, "%s not present in virtio-9p-device\n", interface); | |
67 | g_assert_not_reached(); | |
68 | } | |
69 | ||
70 | static void *virtio_9p_device_get_driver(void *object, const char *interface) | |
71 | { | |
72 | QVirtio9PDevice *v_9p = object; | |
73 | return virtio_9p_get_driver(&v_9p->v9p, interface); | |
74 | } | |
75 | ||
76 | static void *virtio_9p_device_create(void *virtio_dev, | |
77 | QGuestAllocator *t_alloc, | |
78 | void *addr) | |
79 | { | |
80 | QVirtio9PDevice *virtio_device = g_new0(QVirtio9PDevice, 1); | |
81 | QVirtio9P *interface = &virtio_device->v9p; | |
82 | ||
83 | interface->vdev = virtio_dev; | |
84 | alloc = t_alloc; | |
85 | ||
86 | virtio_device->obj.destructor = virtio_9p_device_destructor; | |
87 | virtio_device->obj.get_driver = virtio_9p_device_get_driver; | |
88 | virtio_device->obj.start_hw = virtio_9p_device_start_hw; | |
89 | ||
90 | return &virtio_device->obj; | |
91 | } | |
92 | ||
93 | /* virtio-9p-pci */ | |
94 | static void virtio_9p_pci_destructor(QOSGraphObject *obj) | |
95 | { | |
96 | QVirtio9PPCI *v9_pci = (QVirtio9PPCI *) obj; | |
97 | QVirtio9P *interface = &v9_pci->v9p; | |
98 | QOSGraphObject *pci_vobj = &v9_pci->pci_vdev.obj; | |
99 | ||
100 | virtio_9p_cleanup(interface); | |
101 | qvirtio_pci_destructor(pci_vobj); | |
102 | } | |
103 | ||
104 | static void virtio_9p_pci_start_hw(QOSGraphObject *obj) | |
105 | { | |
106 | QVirtio9PPCI *v9_pci = (QVirtio9PPCI *) obj; | |
107 | QVirtio9P *interface = &v9_pci->v9p; | |
108 | QOSGraphObject *pci_vobj = &v9_pci->pci_vdev.obj; | |
109 | ||
110 | qvirtio_pci_start_hw(pci_vobj); | |
111 | virtio_9p_setup(interface); | |
112 | } | |
113 | ||
114 | static void *virtio_9p_pci_get_driver(void *object, const char *interface) | |
115 | { | |
116 | QVirtio9PPCI *v_9p = object; | |
117 | if (!g_strcmp0(interface, "pci-device")) { | |
118 | return v_9p->pci_vdev.pdev; | |
119 | } | |
120 | return virtio_9p_get_driver(&v_9p->v9p, interface); | |
121 | } | |
122 | ||
123 | static void *virtio_9p_pci_create(void *pci_bus, QGuestAllocator *t_alloc, | |
124 | void *addr) | |
125 | { | |
126 | QVirtio9PPCI *v9_pci = g_new0(QVirtio9PPCI, 1); | |
127 | QVirtio9P *interface = &v9_pci->v9p; | |
128 | QOSGraphObject *obj = &v9_pci->pci_vdev.obj; | |
129 | ||
130 | virtio_pci_init(&v9_pci->pci_vdev, pci_bus, addr); | |
131 | interface->vdev = &v9_pci->pci_vdev.vdev; | |
132 | alloc = t_alloc; | |
133 | ||
134 | g_assert_cmphex(interface->vdev->device_type, ==, VIRTIO_ID_9P); | |
135 | ||
136 | obj->destructor = virtio_9p_pci_destructor; | |
137 | obj->start_hw = virtio_9p_pci_start_hw; | |
138 | obj->get_driver = virtio_9p_pci_get_driver; | |
139 | ||
140 | return obj; | |
141 | } | |
142 | ||
143 | static void virtio_9p_register_nodes(void) | |
144 | { | |
145 | const char *str_simple = "fsdev=fsdev0,mount_tag=" MOUNT_TAG; | |
146 | const char *str_addr = "fsdev=fsdev0,addr=04.0,mount_tag=" MOUNT_TAG; | |
147 | ||
148 | QPCIAddress addr = { | |
149 | .devfn = QPCI_DEVFN(4, 0), | |
150 | }; | |
151 | ||
152 | QOSGraphEdgeOptions opts = { | |
153 | .before_cmd_line = "-fsdev synth,id=fsdev0", | |
154 | }; | |
155 | ||
156 | /* virtio-9p-device */ | |
157 | opts.extra_device_opts = str_simple, | |
158 | qos_node_create_driver("virtio-9p-device", virtio_9p_device_create); | |
159 | qos_node_consumes("virtio-9p-device", "virtio-bus", &opts); | |
160 | qos_node_produces("virtio-9p-device", "virtio"); | |
161 | qos_node_produces("virtio-9p-device", "virtio-9p"); | |
162 | ||
163 | /* virtio-9p-pci */ | |
164 | opts.extra_device_opts = str_addr; | |
165 | add_qpci_address(&opts, &addr); | |
166 | qos_node_create_driver("virtio-9p-pci", virtio_9p_pci_create); | |
167 | qos_node_consumes("virtio-9p-pci", "pci-bus", &opts); | |
168 | qos_node_produces("virtio-9p-pci", "pci-device"); | |
169 | qos_node_produces("virtio-9p-pci", "virtio"); | |
170 | qos_node_produces("virtio-9p-pci", "virtio-9p"); | |
171 | ||
172 | } | |
173 | ||
174 | libqos_init(virtio_9p_register_nodes); |