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ef7e7845 JQ |
1 | /* |
2 | * Vhost vsock PCI Bindings | |
3 | * | |
4 | * Copyright 2015 Red Hat, Inc. | |
5 | * | |
6 | * Authors: | |
7 | * Stefan Hajnoczi <stefanha@redhat.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or | |
10 | * (at your option) any later version. See the COPYING file in the | |
11 | * top-level directory. | |
12 | */ | |
13 | ||
14 | #include "qemu/osdep.h" | |
15 | ||
16 | #include "virtio-pci.h" | |
a27bd6c7 | 17 | #include "hw/qdev-properties.h" |
ef7e7845 | 18 | #include "hw/virtio/vhost-vsock.h" |
0b8fa32f | 19 | #include "qemu/module.h" |
db1015e9 | 20 | #include "qom/object.h" |
ef7e7845 JQ |
21 | |
22 | typedef struct VHostVSockPCI VHostVSockPCI; | |
23 | ||
24 | /* | |
25 | * vhost-vsock-pci: This extends VirtioPCIProxy. | |
26 | */ | |
27 | #define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci-base" | |
8110fa1d EH |
28 | DECLARE_INSTANCE_CHECKER(VHostVSockPCI, VHOST_VSOCK_PCI, |
29 | TYPE_VHOST_VSOCK_PCI) | |
ef7e7845 JQ |
30 | |
31 | struct VHostVSockPCI { | |
32 | VirtIOPCIProxy parent_obj; | |
33 | VHostVSock vdev; | |
34 | }; | |
35 | ||
36 | /* vhost-vsock-pci */ | |
37 | ||
38 | static Property vhost_vsock_pci_properties[] = { | |
39 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), | |
40 | DEFINE_PROP_END_OF_LIST(), | |
41 | }; | |
42 | ||
43 | static void vhost_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
44 | { | |
45 | VHostVSockPCI *dev = VHOST_VSOCK_PCI(vpci_dev); | |
46 | DeviceState *vdev = DEVICE(&dev->vdev); | |
62090705 SG |
47 | VirtIODevice *virtio_dev = VIRTIO_DEVICE(vdev); |
48 | ||
49 | /* | |
50 | * To avoid migration issues, we force virtio version 1 only when | |
51 | * legacy check is enabled in the new machine types (>= 5.1). | |
52 | */ | |
53 | if (!virtio_legacy_check_disabled(virtio_dev)) { | |
54 | virtio_pci_force_virtio_1(vpci_dev); | |
55 | } | |
ef7e7845 | 56 | |
99ba777e | 57 | qdev_realize(vdev, BUS(&vpci_dev->bus), errp); |
ef7e7845 JQ |
58 | } |
59 | ||
60 | static void vhost_vsock_pci_class_init(ObjectClass *klass, void *data) | |
61 | { | |
62 | DeviceClass *dc = DEVICE_CLASS(klass); | |
63 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
64 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
65 | k->realize = vhost_vsock_pci_realize; | |
66 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
4f67d30b | 67 | device_class_set_props(dc, vhost_vsock_pci_properties); |
ef7e7845 JQ |
68 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
69 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK; | |
70 | pcidev_k->revision = 0x00; | |
71 | pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
72 | } | |
73 | ||
74 | static void vhost_vsock_pci_instance_init(Object *obj) | |
75 | { | |
76 | VHostVSockPCI *dev = VHOST_VSOCK_PCI(obj); | |
77 | ||
78 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
79 | TYPE_VHOST_VSOCK); | |
80 | } | |
81 | ||
82 | static const VirtioPCIDeviceTypeInfo vhost_vsock_pci_info = { | |
83 | .base_name = TYPE_VHOST_VSOCK_PCI, | |
84 | .generic_name = "vhost-vsock-pci", | |
ef7e7845 JQ |
85 | .non_transitional_name = "vhost-vsock-pci-non-transitional", |
86 | .instance_size = sizeof(VHostVSockPCI), | |
87 | .instance_init = vhost_vsock_pci_instance_init, | |
88 | .class_init = vhost_vsock_pci_class_init, | |
89 | }; | |
90 | ||
91 | static void virtio_pci_vhost_register(void) | |
92 | { | |
93 | virtio_pci_types_register(&vhost_vsock_pci_info); | |
94 | } | |
95 | ||
96 | type_init(virtio_pci_vhost_register) |