device: 0.827
graphic: 0.789
other: 0.746
performance: 0.697
network: 0.588
permissions: 0.575
semantic: 0.566
boot: 0.540
vnc: 0.527
socket: 0.461
files: 0.429
PID: 0.391
debug: 0.336
KVM: 0.196

RFE: Please implement -cpu best or a CPU fallback option

QEMU should implement a -cpu best option or some other way to make this work:

qemu -M pc,accel=kvm:tcg -cpu best

qemu -M pc,accel=kvm:tcg -cpu host:qemu64

See also:

https://bugzilla.redhat.com/show_bug.cgi?id=1277744#c6

Instead of having a new CPU model called "best", we can simply make "-cpu host" available on TCG. I have submitted a patch for this yesterday:

https://<email address hidden>/msg422959.html

I think we've ended up with '-cpu max', present since QEMU 2.9 for x86 and perhaps for some other architectures, but not Arm yet.


As far as I can see, we have "-cpu max" now for x86, arm, ppc and s390x ... is that enough, so that we can close this bug now?