Hi, they are a lot of patches sent on the mailing list recently,
cpu hotplug|unplug with device_add|del https://www.redhat.com/archives/libvir-list/2015-February/msg00084.html ----- Mail original ----- De: "Fahri Cihan Demirci" <cih...@skyatlas.com> À: "qemu-devel" <qemu-devel@nongnu.org> Envoyé: Lundi 4 Mai 2015 18:24:43 Objet: [Qemu-devel] VCPU Hot-Unplug Feature Hello, We are interested in being able to remove a VCPU from an active Libvirt domain running under QEMU/KVM. However, currently that does not seem to be possible because QEMU does not provide an interface for hot-unplugging a VCPU. The corresponding feature page [1] on the QEMU wiki mentions the cpu-add interface and the generalized device add/del interface. So, my question is, is there someone working on a cpu-remove interface or making progress in the generalized device add/del interface to hot-unplug VCPUS? If you are in any way interested in or planning such a feature, we may provide feedback, testing or help in the development effort. Any other input, guidance or corrections would be also most welcome. Thank you. [1] http://wiki.qemu.org/Features/CPUHotplug Best regards, Fahri Cihan Demirci
