device: 0.845
graphic: 0.747
performance: 0.596
virtual: 0.485
network: 0.435
hypervisor: 0.416
VMM: 0.394
architecture: 0.369
mistranslation: 0.368
debug: 0.333
semantic: 0.297
vnc: 0.261
permissions: 0.248
register: 0.222
i386: 0.199
ppc: 0.197
user-level: 0.153
arm: 0.143
PID: 0.142
x86: 0.138
boot: 0.131
assembly: 0.113
TCG: 0.109
files: 0.109
kernel: 0.095
risc-v: 0.076
socket: 0.057
peripherals: 0.029
KVM: 0.013

qemu-img fixed vhd issues