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d3d400d3 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" |
d3d400d3 EGE |
22 | #include "libqos/qgraph.h" |
23 | #include "libqos/virtio-rng.h" | |
24 | ||
25 | /* virtio-rng-device */ | |
26 | static void *qvirtio_rng_get_driver(QVirtioRng *v_rng, | |
27 | const char *interface) | |
28 | { | |
29 | if (!g_strcmp0(interface, "virtio-rng")) { | |
30 | return v_rng; | |
31 | } | |
32 | if (!g_strcmp0(interface, "virtio")) { | |
33 | return v_rng->vdev; | |
34 | } | |
35 | ||
36 | fprintf(stderr, "%s not present in virtio-rng-device\n", interface); | |
37 | g_assert_not_reached(); | |
38 | } | |
39 | ||
40 | static void *qvirtio_rng_device_get_driver(void *object, | |
41 | const char *interface) | |
42 | { | |
43 | QVirtioRngDevice *v_rng = object; | |
44 | return qvirtio_rng_get_driver(&v_rng->rng, interface); | |
45 | } | |
46 | ||
47 | static void *virtio_rng_device_create(void *virtio_dev, | |
48 | QGuestAllocator *t_alloc, | |
49 | void *addr) | |
50 | { | |
51 | QVirtioRngDevice *virtio_rdevice = g_new0(QVirtioRngDevice, 1); | |
52 | QVirtioRng *interface = &virtio_rdevice->rng; | |
53 | ||
54 | interface->vdev = virtio_dev; | |
55 | ||
56 | virtio_rdevice->obj.get_driver = qvirtio_rng_device_get_driver; | |
57 | ||
58 | return &virtio_rdevice->obj; | |
59 | } | |
60 | ||
61 | /* virtio-rng-pci */ | |
62 | static void *qvirtio_rng_pci_get_driver(void *object, const char *interface) | |
63 | { | |
64 | QVirtioRngPCI *v_rng = object; | |
65 | if (!g_strcmp0(interface, "pci-device")) { | |
66 | return v_rng->pci_vdev.pdev; | |
67 | } | |
68 | return qvirtio_rng_get_driver(&v_rng->rng, interface); | |
69 | } | |
70 | ||
71 | static void *virtio_rng_pci_create(void *pci_bus, QGuestAllocator *t_alloc, | |
72 | void *addr) | |
73 | { | |
74 | QVirtioRngPCI *virtio_rpci = g_new0(QVirtioRngPCI, 1); | |
75 | QVirtioRng *interface = &virtio_rpci->rng; | |
76 | QOSGraphObject *obj = &virtio_rpci->pci_vdev.obj; | |
77 | ||
78 | virtio_pci_init(&virtio_rpci->pci_vdev, pci_bus, addr); | |
79 | interface->vdev = &virtio_rpci->pci_vdev.vdev; | |
80 | ||
81 | obj->get_driver = qvirtio_rng_pci_get_driver; | |
82 | ||
83 | return obj; | |
84 | } | |
85 | ||
86 | static void virtio_rng_register_nodes(void) | |
87 | { | |
88 | QPCIAddress addr = { | |
89 | .devfn = QPCI_DEVFN(4, 0), | |
90 | }; | |
91 | ||
92 | QOSGraphEdgeOptions opts = { | |
93 | .extra_device_opts = "addr=04.0", | |
94 | }; | |
95 | ||
96 | /* virtio-rng-device */ | |
97 | qos_node_create_driver("virtio-rng-device", virtio_rng_device_create); | |
98 | qos_node_consumes("virtio-rng-device", "virtio-bus", NULL); | |
99 | qos_node_produces("virtio-rng-device", "virtio"); | |
100 | qos_node_produces("virtio-rng-device", "virtio-rng"); | |
101 | ||
102 | /* virtio-rng-pci */ | |
103 | add_qpci_address(&opts, &addr); | |
104 | qos_node_create_driver("virtio-rng-pci", virtio_rng_pci_create); | |
105 | qos_node_consumes("virtio-rng-pci", "pci-bus", &opts); | |
106 | qos_node_produces("virtio-rng-pci", "pci-device"); | |
107 | qos_node_produces("virtio-rng-pci", "virtio"); | |
108 | qos_node_produces("virtio-rng-pci", "virtio-rng"); | |
109 | } | |
110 | ||
111 | libqos_init(virtio_rng_register_nodes); |