[Qemu-devel] [PATCH 00/11] pc: allow to use -device/device_add for CPUs

[Igor Mammedov]

Series enabling usage of -device/device_add for adding CPUs
as devices. Using -device/device_add in combination with
query-hotpluggable-cpus QMP command allows to hotplug CPUs
at any not used possition and then safely migrate QEMU
instance by specifying hotadded CPUs on target with help
of -device CLI option like with any other device.
Having been able to hotadd arbitrary CPUs and migrate also
opens poosibility to hot-remove arbitrary CPUs, which will
be a separate series on top of this one.

Series depends on following not yet commited patchsets:
 1: [PATCH v2 00/10] ACPI CPU hotplug refactoring to support unplug and more 
than 255 CPUs
      https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg04671.html
 2: [PATCH v2 0/6] cpus: make "-cpu cpux, features" global properties
      https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg02579.html
   3: [PATCH v2 00/10] globals: Clean up validation and error checking
        https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg05662.html

git tree for testing:
  https://github.com/imammedo/qemu.git dev_add_cpu_v1
for viewing:
  https://github.com/imammedo/qemu/commits/dev_add_cpu_v1

Igor Mammedov (11):
  target-i386: cpu: use uint32_t for X86CPU.apic_id
  pc: add x86_topo_ids_from_apicid()
  pc: extract CPU lookup into a separate function
  pc: cpu: consolidate apic-id validity checks in pc_cpu_pre_plug()
  target-i386: cpu: replace custom apic-id setter/getter with static
    property
  target-i386: add socket/core/thread properties to X86CPU
  pc: set APIC ID based on socket/core/thread ids if it's not been set
    yet
  pc: implement query-hotpluggable-cpus callback
  pc: register created initial and hotpluged CPUs in one place
    pc_cpu_plug()
  pc: delay setting number of boot CPUs to machine_done time
  pc: cpu: allow device_add to be used with x86 cpu

 hw/i386/pc.c               | 170 +++++++++++++++++++++++++++++++++++----------
 include/hw/i386/topology.h |  15 ++++
 qmp-commands.hx            |  15 ++++
 target-i386/cpu.c          |  64 +++--------------
 target-i386/cpu.h          |   8 ++-
 5 files changed, 180 insertions(+), 92 deletions(-)

-- 
1.8.3.1