device: 0.982
other: 0.958
semantic: 0.954
graphic: 0.912
socket: 0.677
debug: 0.639
network: 0.540
performance: 0.536
vnc: 0.533
boot: 0.433
permissions: 0.206
KVM: 0.167
PID: 0.144
files: 0.098

how to onboard fw_cfg to other machines
Additional information:
Would it be doable for other machines actually? I didn't dig deeper into this device to understand, but I guess it is connected to the VM somehow and it has some memory mapped to the OS?