device: 0.915
performance: 0.695
VMM: 0.535
vnc: 0.531
architecture: 0.524
TCG: 0.521
risc-v: 0.464
network: 0.448
PID: 0.443
arm: 0.387
i386: 0.380
ppc: 0.377
KVM: 0.350
mistranslation: 0.325
x86: 0.318
peripherals: 0.298
socket: 0.288
graphic: 0.286
hypervisor: 0.273
debug: 0.237
virtual: 0.236
semantic: 0.224
assembly: 0.210
boot: 0.197
permissions: 0.184
user-level: 0.158
register: 0.143
kernel: 0.130
files: 0.117

Have DeviceRealize return boolean indicating error