Eduardo Habkost <ehabkost@xxxxxxxxxx> wrote: > On Tue, Feb 16, 2016 at 12:54:57PM +0100, Christian Borntraeger wrote: >> So my quick and dirty summary of CPU as _I_ understand it >> (and I only have some part time bandwidth at the moment for that) >> >> x86 has cpu hotplug. Some history >> qemu-kvm had cpu_set in the past >> qemu has cpu_add for a while now >> libvirt code uses cpu_add cross-platform out of the box >> >> proposal to use device_add. Currently this has the following issues that >> we need to discuss: >> - will require capability checking and dual code in libvirt (and libvirt updates) >> - Power has some constraints that are hard to model with just device add >> - David Gibson proposes a two layer interface >> - low level: device add cpu-package >> - high level >> - David Hildenbrand has some concerns regarding CPU models (with base model + feature >> on/off), as device_add needs instantiatable type >> - devel_del: s390 has no interface for cpu removal (Matts latest patches reset the >> machine just like z/VM - until we have some interface) >> - anything else? (cpu hotplug on ARM or MIPS?) >> >> Would be good to use todays call to have a plan how to finish things soon. >> (maybe even for 2.6) > > Did the call happen? I am away from work for most days during the > next 2 weeks, so I couldn't attend. Yeap. I sent some minutes, but they are kind of incoherent, I hope that Andreas or Christian fill the holes... Later, Juan. -- 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
