/* Plug the VirtIODevice */ int virtio_bus_plug_device(VirtIODevice *vdev) { DeviceState *qdev = DEVICE(vdev); BusState *qbus = BUS(qdev_get_parent_bus(qdev)); VirtioBusState *bus = VIRTIO_BUS(qbus); VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus); DPRINTF("%s: plug device.\n", qbus->name); bus->vdev = vdev; /* * The lines below will disappear when we drop VirtIOBindings, at the end * of the series. */ bus->bindings.notify = klass->notify; bus->bindings.save_config = klass->save_config; bus->bindings.save_queue = klass->save_queue; bus->bindings.load_config = klass->load_config; bus->bindings.load_queue = klass->load_queue; bus->bindings.load_done = klass->load_done; bus->bindings.get_features = klass->get_features; bus->bindings.query_guest_notifiers = klass->query_guest_notifiers; bus->bindings.set_guest_notifiers = klass->set_guest_notifiers; bus->bindings.set_host_notifier = klass->set_host_notifier; bus->bindings.vmstate_change = klass->vmstate_change; virtio_bind_device(bus->vdev, &bus->bindings, qbus->parent); if (klass->device_plugged != NULL) { klass->device_plugged(qbus->parent); } return 0; }
/* A VirtIODevice is being plugged */ int virtio_bus_device_plugged(VirtIODevice *vdev) { DeviceState *qdev = DEVICE(vdev); BusState *qbus = BUS(qdev_get_parent_bus(qdev)); VirtioBusState *bus = VIRTIO_BUS(qbus); VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus); DPRINTF("%s: plug device.\n", qbus->name); if (klass->device_plugged != NULL) { klass->device_plugged(qbus->parent); } return 0; }
/* A VirtIODevice is being plugged */ void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp) { DeviceState *qdev = DEVICE(vdev); BusState *qbus = BUS(qdev_get_parent_bus(qdev)); VirtioBusState *bus = VIRTIO_BUS(qbus); VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus); VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); bool has_iommu = virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM); Error *local_err = NULL; DPRINTF("%s: plug device.\n", qbus->name); if (klass->pre_plugged != NULL) { klass->pre_plugged(qbus->parent, &local_err); if (local_err) { error_propagate(errp, local_err); return; } } /* Get the features of the plugged device. */ assert(vdc->get_features != NULL); vdev->host_features = vdc->get_features(vdev, vdev->host_features, &local_err); if (local_err) { error_propagate(errp, local_err); return; } if (klass->device_plugged != NULL) { klass->device_plugged(qbus->parent, &local_err); } if (local_err) { error_propagate(errp, local_err); return; } if (klass->get_dma_as != NULL && has_iommu) { virtio_add_feature(&vdev->host_features, VIRTIO_F_IOMMU_PLATFORM); vdev->dma_as = klass->get_dma_as(qbus->parent); } else { vdev->dma_as = &address_space_memory; } }
/* A VirtIODevice is being plugged */ void virtio_bus_device_plugged(VirtIODevice *vdev, Error **errp) { DeviceState *qdev = DEVICE(vdev); BusState *qbus = BUS(qdev_get_parent_bus(qdev)); VirtioBusState *bus = VIRTIO_BUS(qbus); VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus); VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); DPRINTF("%s: plug device.\n", qbus->name); if (klass->device_plugged != NULL) { klass->device_plugged(qbus->parent, errp); } /* Get the features of the plugged device. */ assert(vdc->get_features != NULL); vdev->host_features = vdc->get_features(vdev, vdev->host_features, errp); if (klass->post_plugged != NULL) { klass->post_plugged(qbus->parent, errp); } }