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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" |
b3e7dc87 EGE |
22 | #include "libqos/qgraph.h" |
23 | #include "libqos/virtio-serial.h" | |
24 | ||
25 | static void *qvirtio_serial_get_driver(QVirtioSerial *v_serial, | |
26 | const char *interface) | |
27 | { | |
28 | if (!g_strcmp0(interface, "virtio-serial")) { | |
29 | return v_serial; | |
30 | } | |
31 | if (!g_strcmp0(interface, "virtio")) { | |
32 | return v_serial->vdev; | |
33 | } | |
34 | ||
35 | fprintf(stderr, "%s not present in virtio-serial-device\n", interface); | |
36 | g_assert_not_reached(); | |
37 | } | |
38 | ||
39 | static void *qvirtio_serial_device_get_driver(void *object, | |
40 | const char *interface) | |
41 | { | |
42 | QVirtioSerialDevice *v_serial = object; | |
43 | return qvirtio_serial_get_driver(&v_serial->serial, interface); | |
44 | } | |
45 | ||
46 | static void *virtio_serial_device_create(void *virtio_dev, | |
47 | QGuestAllocator *t_alloc, | |
48 | void *addr) | |
49 | { | |
50 | QVirtioSerialDevice *virtio_device = g_new0(QVirtioSerialDevice, 1); | |
51 | QVirtioSerial *interface = &virtio_device->serial; | |
52 | ||
53 | interface->vdev = virtio_dev; | |
54 | ||
55 | virtio_device->obj.get_driver = qvirtio_serial_device_get_driver; | |
56 | ||
57 | return &virtio_device->obj; | |
58 | } | |
59 | ||
60 | /* virtio-serial-pci */ | |
61 | static void *qvirtio_serial_pci_get_driver(void *object, const char *interface) | |
62 | { | |
63 | QVirtioSerialPCI *v_serial = object; | |
64 | if (!g_strcmp0(interface, "pci-device")) { | |
65 | return v_serial->pci_vdev.pdev; | |
66 | } | |
67 | return qvirtio_serial_get_driver(&v_serial->serial, interface); | |
68 | } | |
69 | ||
70 | static void *virtio_serial_pci_create(void *pci_bus, QGuestAllocator *t_alloc, | |
71 | void *addr) | |
72 | { | |
73 | QVirtioSerialPCI *virtio_spci = g_new0(QVirtioSerialPCI, 1); | |
74 | QVirtioSerial *interface = &virtio_spci->serial; | |
75 | QOSGraphObject *obj = &virtio_spci->pci_vdev.obj; | |
76 | ||
77 | virtio_pci_init(&virtio_spci->pci_vdev, pci_bus, addr); | |
78 | interface->vdev = &virtio_spci->pci_vdev.vdev; | |
79 | ||
80 | obj->get_driver = qvirtio_serial_pci_get_driver; | |
81 | ||
82 | return obj; | |
83 | } | |
84 | ||
85 | static void virtio_serial_register_nodes(void) | |
86 | { | |
87 | QPCIAddress addr = { | |
88 | .devfn = QPCI_DEVFN(4, 0), | |
89 | }; | |
90 | ||
91 | QOSGraphEdgeOptions edge_opts = { }; | |
92 | ||
93 | /* virtio-serial-device */ | |
94 | edge_opts.extra_device_opts = "id=vser0"; | |
95 | qos_node_create_driver("virtio-serial-device", | |
96 | virtio_serial_device_create); | |
97 | qos_node_consumes("virtio-serial-device", "virtio-bus", &edge_opts); | |
98 | qos_node_produces("virtio-serial-device", "virtio"); | |
99 | qos_node_produces("virtio-serial-device", "virtio-serial"); | |
100 | ||
101 | /* virtio-serial-pci */ | |
102 | edge_opts.extra_device_opts = "id=vser0,addr=04.0"; | |
103 | add_qpci_address(&edge_opts, &addr); | |
104 | qos_node_create_driver("virtio-serial-pci", virtio_serial_pci_create); | |
105 | qos_node_consumes("virtio-serial-pci", "pci-bus", &edge_opts); | |
106 | qos_node_produces("virtio-serial-pci", "pci-device"); | |
107 | qos_node_produces("virtio-serial-pci", "virtio"); | |
108 | qos_node_produces("virtio-serial-pci", "virtio-serial"); | |
109 | } | |
110 | ||
111 | libqos_init(virtio_serial_register_nodes); |