diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 1701e0623408..6489f44bca1a 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -679,7 +679,9 @@ static void vdpasim_free(struct vdpa_device *vdpa)
 	}
 
 	kvfree(vdpasim->buffer);
-	vhost_iotlb_free(vdpasim->iommu);
+	for (i = 0; i < vdpasim->dev_attr.nas; i++)
+		vhost_iotlb_reset(&vdpasim->iommu[i]);
+	kfree(vdpasim->iommu);
 	kfree(vdpasim->vqs);
 	kfree(vdpasim->config);
 }