architecture: 0.946
device: 0.938
performance: 0.738
peripherals: 0.701
network: 0.595
graphic: 0.565
virtual: 0.530
semantic: 0.477
boot: 0.454
arm: 0.433
socket: 0.430
risc-v: 0.381
vnc: 0.365
mistranslation: 0.363
debug: 0.357
user-level: 0.345
permissions: 0.318
hypervisor: 0.303
assembly: 0.268
register: 0.260
PID: 0.167
ppc: 0.164
VMM: 0.152
i386: 0.147
TCG: 0.084
files: 0.075
x86: 0.039
kernel: 0.022
KVM: 0.009

XenBus machines have almost no hotplug support