On Sun, Sep 19, 2010 at 04:07:50PM +0200, Conrad Wood wrote: > 1) Thanks for clarifying "online" vs "halted" - that makes sense and is > probably part of what confused me. I need to get the "online/offline" > status of cpus, not if they are halted or not. I understand this is > currently not possible with kvm. As I have no direct control over the > guest OS, I do however need a solution on the host. Any clues how this > could be implemented would be much appreciated. > This is important to me. I thought I read somewhere that kvm does not currently support taking a cpu offline - the guest can only voluntarily stop using a cpu. (Gleb would know better, but I think he was trying to say the same thing.) > 2) In my case, the cpus are ALWAYS reported as halted, regardless of the > current state in the guest. > After the guest booted, The "cpu infos" displays precisely the amount of > cpus as initially set by the -smp parameter of kvm. (as halted). > any additional cpus added later will be displayed, also as halted - > again regardless whether or not the guest switches or had switched them > to online. It is reported as "halted" even whilst the guest is running a > cpu-hogger which would stop the cpu from halting. > I don't mind so much about this cosmetic display problem ;) I suppose one could check the host cpu usage of the thread reported in "info cpus". -Kevin -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
