device: 0.581
files: 0.487
vnc: 0.260
ppc: 0.246
mistranslation: 0.237
permissions: 0.227
semantic: 0.207
debug: 0.197
PID: 0.131
arm: 0.124
socket: 0.115
register: 0.107
user-level: 0.090
graphic: 0.070
risc-v: 0.062
VMM: 0.059
network: 0.051
virtual: 0.050
i386: 0.045
peripherals: 0.042
x86: 0.039
TCG: 0.031
hypervisor: 0.028
performance: 0.026
architecture: 0.016
kernel: 0.012
boot: 0.009
assembly: 0.008
KVM: 0.004

Documentation build fails with Sphinx 8