From: "Jason J. Herne" <jjhe...@us.ibm.com> Latest code for cpu Hotplug on S390 architecture.
The last version can be found here: http://lists.gnu.org/archive/html/qemu-devel/2013-08/msg00076.html There is also a patch in this series to add cpu-add to the Qemu monitor interface. Hotplugged cpus are created in the configured state and can be used by the guest after the guest onlines the cpu by: "echo 1 > /sys/bus/cpu/devices/cpuN/online" Hot unplugging is currently not implemented by this code. Jason J. Herne (8): s390-sclp: Define New SCLP Codes s390-sclp: SCLP CPU Info s390-sclp: SCLP Event integration s390: Storage key global access s390-cpu: ipi_states enhancements s390-cpu: s390 cpu init improvements for hotplug s390-hotplug: Implement hot_add_cpu hook qemu-monitor: HMP cpu-add wrapper hmp-commands.hx | 13 +++++ hmp.c | 10 ++++ hmp.h | 1 + hw/s390x/Makefile.objs | 1 + hw/s390x/event-facility.c | 6 ++ hw/s390x/s390-virtio-ccw.c | 4 +- hw/s390x/s390-virtio.c | 36 ++++++------ hw/s390x/s390-virtio.h | 2 +- hw/s390x/sclp.c | 53 ++++++++++++++++- hw/s390x/sclpcpu.c | 118 ++++++++++++++++++++++++++++++++++++++ include/hw/s390x/event-facility.h | 3 + include/hw/s390x/sclp.h | 41 +++++++++++++ target-s390x/cpu.c | 43 +++++++++++++- target-s390x/cpu.h | 6 ++ 14 files changed, 315 insertions(+), 22 deletions(-) create mode 100644 hw/s390x/sclpcpu.c -- 1.8.3.2
