1 /*
2  * Vhost-user vsock PCI Bindings
3  *
4  * Copyright 2020 Red Hat, Inc.
5  *
6  * This work is licensed under the terms of the GNU GPL, version 2 or
7  * (at your option) any later version.  See the COPYING file in the
8  * top-level directory.
9  */
10 
11 #include "qemu/osdep.h"
12 
13 #include "virtio-pci.h"
14 #include "hw/qdev-properties.h"
15 #include "hw/virtio/vhost-user-vsock.h"
16 
17 typedef struct VHostUserVSockPCI VHostUserVSockPCI;
18 
19 /*
20  * vhost-user-vsock-pci: This extends VirtioPCIProxy.
21  */
22 #define TYPE_VHOST_USER_VSOCK_PCI "vhost-user-vsock-pci-base"
23 #define VHOST_USER_VSOCK_PCI(obj) \
24         OBJECT_CHECK(VHostUserVSockPCI, (obj), TYPE_VHOST_USER_VSOCK_PCI)
25 
26 struct VHostUserVSockPCI {
27     VirtIOPCIProxy parent_obj;
28     VHostUserVSock vdev;
29 };
30 
31 /* vhost-user-vsock-pci */
32 
33 static Property vhost_user_vsock_pci_properties[] = {
34     DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
35     DEFINE_PROP_END_OF_LIST(),
36 };
37 
38 static void vhost_user_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
39 {
40     VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(vpci_dev);
41     DeviceState *vdev = DEVICE(&dev->vdev);
42 
43     qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
44 }
45 
46 static void vhost_user_vsock_pci_class_init(ObjectClass *klass, void *data)
47 {
48     DeviceClass *dc = DEVICE_CLASS(klass);
49     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
50     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
51     k->realize = vhost_user_vsock_pci_realize;
52     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
53     device_class_set_props(dc, vhost_user_vsock_pci_properties);
54     pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
55     pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
56     pcidev_k->revision = 0x00;
57     pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
58 }
59 
60 static void vhost_user_vsock_pci_instance_init(Object *obj)
61 {
62     VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(obj);
63 
64     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
65                                 TYPE_VHOST_USER_VSOCK);
66 }
67 
68 static const VirtioPCIDeviceTypeInfo vhost_user_vsock_pci_info = {
69     .base_name             = TYPE_VHOST_USER_VSOCK_PCI,
70     .generic_name          = "vhost-user-vsock-pci",
71     .transitional_name     = "vhost-user-vsock-pci-transitional",
72     .non_transitional_name = "vhost-user-vsock-pci-non-transitional",
73     .instance_size = sizeof(VHostUserVSockPCI),
74     .instance_init = vhost_user_vsock_pci_instance_init,
75     .class_init    = vhost_user_vsock_pci_class_init,
76 };
77 
78 static void virtio_pci_vhost_register(void)
79 {
80     virtio_pci_types_register(&vhost_user_vsock_pci_info);
81 }
82 
83 type_init(virtio_pci_vhost_register)
84