On 2012-05-21 11:50, Igor Mammedov wrote: >> I've used cpu_index, but it seems cpuid_apic_id is assigned only once, >> from cpu_index, so it should be identical. What's the difference? > Once Jan voiced that user visible cpu id, should be apic_id in context of cpu > hotplug > (i.e. when doing: device_add xxx_cpu,id=12345,...) > "Jan, please correct me if I've got you wrong." > So QOM tree probably should reflect this id and not cpu_index. > > However cpu_index and apic_id are the same now and bios assumes it as well. > What are possible benefits of using cpuid_apic_id != cpu_index for qemu?
>From my POV, cpu_index could become equal to the physical APIC ID. As long as we can set it freely (provided it remains unique) and non-continuously, we don't need separate indexes. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux
