[Qemu-devel] [PATCH v5 00/10] sPAPR CPU hotplug

[Bharata B Rao]

This patchset adds CPU hotplug support for sPAPR PowerPC guests using
device_add and device_del commands

(qemu) device_add POWER8-powerpc64-cpu,id=cpu0

The first 5 patches are generic changes. Out of these 4/10 is required
by x86 and s390 as well and has been posted in their CPU hotplug patchsets.
I believe 2/10 and 3/10 would be useful for other archs too.

Andreas - If and when found appropriate, would you be taking patches 1 to
5 via your tree ? Should I post them as separate pre-req patchset ?

Patches 6 to 10 are Power specific.

Changes in v5
-------------
- Get rid of a new element (cpu->queued) the previous version introduced
  and have the same logic to determine if cpu is already dequeued for
  both implementations of cpu_exec_exit(). (2/10)
- Call cpu_remove() from cpu_remove_sync() instead of code duplication. (5/10)
- s/smp_cores/spapr_smp_cores (8/10)
- Set correct tb offset for hotplugged CPU. (8/10)
- s/spapr_hotplug_req_add_event/spapr_hotplug_req_add_by_index (8/10)
- Removed support for incomplete cores and added a separate patch
  to prevent such topologies. (8/10 and 1/10)

v4: https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg00650.html

This series applies on top of ppc-for-2.6 branch of David Gibson's tree.

Bharata B Rao (9):
  vl: Don't allow CPU toplogies with partially filled cores
  exec: Remove cpu from cpus list during cpu_exec_exit()
  exec: Do vmstate unregistration from cpu_exec_exit()
  cpu: Add a sync version of cpu_remove()
  xics_kvm: Add cpu_destroy method to XICS
  spapr: Enable CPU hotplug for pseries-2.5 and add CPU DRC DT entries
  spapr: CPU hotplug support
  spapr: CPU hot unplug support
  target-ppc: Enable CPU hotplug for POWER8 CPU family

Gu Zheng (1):
  cpu: Reclaim vCPU objects

 cpus.c                      |  53 ++++++++++
 exec.c                      |  30 ++++++
 hw/intc/xics.c              |  12 +++
 hw/intc/xics_kvm.c          |  13 ++-
 hw/ppc/spapr.c              | 250 +++++++++++++++++++++++++++++++++++++++++++-
 hw/ppc/spapr_events.c       |   3 +
 hw/ppc/spapr_rtas.c         |  24 +++++
 include/hw/ppc/spapr.h      |   1 +
 include/hw/ppc/xics.h       |   2 +
 include/qom/cpu.h           |  18 ++++
 include/sysemu/kvm.h        |   1 +
 kvm-all.c                   |  57 +++++++++-
 kvm-stub.c                  |   5 +
 target-ppc/translate_init.c |  10 ++
 vl.c                        |   9 ++
 15 files changed, 483 insertions(+), 5 deletions(-)

-- 
2.1.0