[Qemu-devel] VCPU Hot-Unplug Feature

[Fahri Cihan Demirci]

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