performance: 0.626
device: 0.559
semantic: 0.537
graphic: 0.376
boot: 0.342
other: 0.285
permissions: 0.249
debug: 0.197
vnc: 0.163
PID: 0.135
KVM: 0.105
network: 0.013
socket: 0.013
files: 0.005

Option to constrain linux-user exec() to emulated CPU only