vfio_register_emulated_iommu_dev
ret = vfio_register_emulated_iommu_dev(&vgpu->vfio_device);
ret = vfio_register_emulated_iommu_dev(&private->vdev);
ret = vfio_register_emulated_iommu_dev(&matrix_mdev->vdev);
EXPORT_SYMBOL_GPL(vfio_register_emulated_iommu_dev);
int vfio_register_emulated_iommu_dev(struct vfio_device *device);
ret = vfio_register_emulated_iommu_dev(&mdev_state->vdev);
ret = vfio_register_emulated_iommu_dev(&mdev_state->vdev);
ret = vfio_register_emulated_iommu_dev(&mdev_state->vdev);