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Re: [Qemu-devel] VCPU Hot-Unplug Feature
From: |
Alexandre DERUMIER |
Subject: |
Re: [Qemu-devel] VCPU Hot-Unplug Feature |
Date: |
Mon, 4 May 2015 19:49:08 +0200 (CEST) |
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" <address@hidden>
À: "qemu-devel" <address@hidden>
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