On 24/07/18 19:35, Maran Wilson wrote: > It's been a few months since this email thread died off. Has anyone > started working on a potential solution that would allow VCPU hotplug on > KVM/ARM ? Or is this a project that is still waiting for an owner who > has the time and inclination to get started? This is typically a project for someone who would have this particular itch to scratch, and who has a demonstrable need for this functionality. Work wise, it would have to include adding physical CPU hotplug support to the arm64 kernel as a precondition, before worrying about doing it in KVM. For KVM itself, particular area of interests would be: - Making GICv3 redistributors magically appear in the IPA space - Live resizing of GICv3 structures - Dynamic allocation of MPIDR, and mapping with vcpu_id This should keep someone busy for a good couple of weeks (give or take a few months). That being said, I'd rather see support in QEMU first, creating all the vcpu/redistributors upfront, and signalling the hotplug event via the virtual firmware. And then post some numbers to show that creating all the vcpus upfront is not acceptable. Thanks, M. -- Jazz is not dead. It just smells funny... _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
