hw/virtio/vhost-vsock-pci.c

   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"
  17 #include "hw/virtio/vhost-vsock.h"
  18
  19 typedef struct VHostVSockPCI VHostVSockPCI;
  20
  21 /*
  22  * vhost-vsock-pci: This extends VirtioPCIProxy.
  23  */
  24 #define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci-base"
  25 #define VHOST_VSOCK_PCI(obj) \
  26         OBJECT_CHECK(VHostVSockPCI, (obj), TYPE_VHOST_VSOCK_PCI)
  27
  28 struct VHostVSockPCI {
  29     VirtIOPCIProxy parent_obj;
  30     VHostVSock vdev;
  31 };
  32
  33 /* vhost-vsock-pci */
  34
  35 static Property vhost_vsock_pci_properties[] = {
  36     DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
  37     DEFINE_PROP_END_OF_LIST(),
  38 };
  39
  40 static void vhost_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  41 {
  42     VHostVSockPCI *dev = VHOST_VSOCK_PCI(vpci_dev);
  43     DeviceState *vdev = DEVICE(&dev->vdev);
  44
  45     qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  46     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  47 }
  48
  49 static void vhost_vsock_pci_class_init(ObjectClass *klass, void *data)
  50 {
  51     DeviceClass *dc = DEVICE_CLASS(klass);
  52     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  53     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  54     k->realize = vhost_vsock_pci_realize;
  55     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  56     dc->props = vhost_vsock_pci_properties;
  57     pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  58     pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
  59     pcidev_k->revision = 0x00;
  60     pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
  61 }
  62
  63 static void vhost_vsock_pci_instance_init(Object *obj)
  64 {
  65     VHostVSockPCI *dev = VHOST_VSOCK_PCI(obj);
  66
  67     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  68                                 TYPE_VHOST_VSOCK);
  69 }
  70
  71 static const VirtioPCIDeviceTypeInfo vhost_vsock_pci_info = {
  72     .base_name             = TYPE_VHOST_VSOCK_PCI,
  73     .generic_name          = "vhost-vsock-pci",
  74     .transitional_name     = "vhost-vsock-pci-transitional",
  75     .non_transitional_name = "vhost-vsock-pci-non-transitional",
  76     .instance_size = sizeof(VHostVSockPCI),
  77     .instance_init = vhost_vsock_pci_instance_init,
  78     .class_init    = vhost_vsock_pci_class_init,
  79 };
  80
  81 static void virtio_pci_vhost_register(void)
  82 {
  83     virtio_pci_types_register(&vhost_vsock_pci_info);
  84 }
  85
  86 type_init(virtio_pci_vhost_register)