AMD has two temporary patches in the snp-latest branch to fix the VFIO and guest_memfd. https://github.com/AMDESE/qemu/commit/0c9ae28d3e199de9a40876a492e0f03a11c6f5d8 https://github.com/AMDESE/qemu/commit/5256c41fb3055961ea7ac368acc0b86a6632d095 Kata upstream is applying the patches while the issue is not properly solved in QEMU upstream. Paulo Bonzini mentioned that he has this in his TODO list for QEMU 10.