[Libguestfs] Using guestfs to debug kernel

Hi, I would like to use libguestfs to help me setup a VM that I run later with qemu to debug my linux kernel (via qemu -kernel <mykernel> -append ...). One problem I face for instance is that my VM lacks the modules matching my kernel version. So what would you consider as the best option here to load the modules for the kernel ? Should I upload the modules from the host to the VM /lib/modules (need to tar this fodler and upload it via tar_in ?!) ? Or can I access my /lib/modules over the network via a specific initramfs ? I am quite open to any suggestion, I've already got the libguestfs python binding working. Best Regards Matt