On 14/06/2016 16:03, Andrew Jones wrote: > However, I just chatted with Igor, and he says cpu hotplug operates > on logical processors, and thus it's fine to talk about hotplugging > threads. Even real hardware does this. Real hardware will plug a > socket full of threads, but then the firmware may keep most of them > disabled until they're "hotplugged". So, I think the value of cpus > can be anything. Even the useless value of zero.
Fair enough! > I'd keep =0 allowed. In most cases it just means =1, same as if the > property wasn't input. In some cases, cpus,maxcpus it creates a > useless machine, but maybe could accelerate QEMU runs for the purpose > of probing? Eh, it probably adds more complication than necessary... > Considering cpus should mean logical processors, I think that can > have any value on (0, maxcpus] Ok. The machine can warn if necessary. Paolo
