On Mon, 2016-08-15 at 12:09 +0200, Andrew Jones wrote: > Hmm... so now if the user doesn't specify pmu=on (off by default) then we > silently disable it (I think that's a 2.6 compat issue), and if they do > specify pmu=on, but KVM doesn't support it, then it's silently disabled, > which isn't nice. I think QEMU should error out in that case, explaining > that the user specified incompatible options, i.e. they selected accel=kvm > and pmu=on, but their KVM version (or cpu model) doesn't support PMU > emulation.
I agree. Asking qemu to provide a feature that it can't provide should definitely result in a big fat error. -- Andrea Bolognani / Red Hat / Virtualization
