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) Christian -- 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
