Exemplo n.º 1
0
/* Get the features of the plugged device. */
uint32_t virtio_bus_get_vdev_features(VirtioBusState *bus,
                                    uint32_t requested_features)
{
    VirtioDeviceClass *k;
    assert(bus->vdev != NULL);
    k = VIRTIO_DEVICE_GET_CLASS(bus->vdev);
    assert(k->get_features != NULL);
    return k->get_features(bus->vdev, requested_features);
}
Exemplo n.º 2
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;
    }
}
Exemplo n.º 3
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);

    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);
    }
}