performance: 0.558
graphic: 0.288
device: 0.252
mistranslation: 0.249
permissions: 0.224
semantic: 0.171
architecture: 0.166
i386: 0.117
x86: 0.092
hypervisor: 0.084
user-level: 0.073
network: 0.063
arm: 0.051
virtual: 0.040
boot: 0.035
VMM: 0.033
vnc: 0.027
register: 0.025
peripherals: 0.024
files: 0.021
ppc: 0.018
PID: 0.017
socket: 0.016
assembly: 0.013
debug: 0.011
TCG: 0.011
risc-v: 0.009
kernel: 0.009
KVM: 0.008

/usr/share/applications/qemu.desktop should have an "Exec=" key.