[Qemu-devel] [RFC qom-cpu v4 00/10] i386: add cpu hot remove support

[Chen Fan <chen.fan.fnst@cn.fujitsu.com>]

Via implementing ACPI standard methods _EJ0 in bios, after Guest OS hot remove
one vCPU, it is able to send a signal to QEMU, then QEMU could notify
the assigned vCPU of exiting. meanwhile, and intruduce the QOM command 'cpu-del' to remove
vCPU from QEMU itself.

this work is based on Andreas Färber's qom-cpu branch tree.
    git://github.com/afaerber/qemu-cpu.git

this series patches must be used with seabios patch and KVM patch together.

for KVM patches:
    http://comments.gmane.org/gmane.comp.emulators.kvm.devel/114347

for seabios patches:
    http://comments.gmane.org/gmane.comp.emulators.qemu/230460

Chen Fan (10):
  x86: move apic_state field from CPUX86State to X86CPU
  apic: remove redundant variable 'apic_no' from apic_init_common()
  apic: remove local_apics array and using CPU_FOREACH instead
  x86: add x86_cpu_unrealizefn() for cpu apic remove
  qmp: add 'cpu-del' command support
  qom cpu: rename variable 'cpu_added_notifier' to
    'cpu_hotplug_notifier'
  qom cpu: add UNPLUG cpu notifier support
  i386: implement pc interface pc_hot_del_cpu()
  piix4: implement function cpu_status_write() for vcpu ejection
  cpus: reclaim allocated vCPU objects

 cpu-exec.c                      |  2 +-
 cpus.c                          | 51 +++++++++++++++++++++--
 hw/acpi/piix4.c                 | 66 ++++++++++++++++++++++++------
 hw/i386/kvm/apic.c              | 18 +++++++-
 hw/i386/kvmvapic.c              |  8 ++--
 hw/i386/pc.c                    | 51 ++++++++++++++++++-----
 hw/i386/pc_piix.c               |  3 +-
 hw/intc/apic.c                  | 91 ++++++++++++++++++++++-------------------
 hw/intc/apic_common.c           | 17 ++------
 include/hw/boards.h             |  2 +
 include/hw/i386/apic_internal.h |  6 +--
 include/hw/i386/pc.h            |  1 +
 include/qom/cpu.h               | 20 +++++++++
 include/sysemu/kvm.h            |  1 +
 include/sysemu/sysemu.h         |  2 +-
 kvm-all.c                       | 25 +++++++++++
 qapi-schema.json                | 12 ++++++
 qmp-commands.hx                 | 23 +++++++++++
 qmp.c                           |  9 ++++
 qom/cpu.c                       | 26 +++++++++---
 target-i386/cpu-qom.h           |  5 +++
 target-i386/cpu.c               | 57 ++++++++++++++++++++------
 target-i386/cpu.h               |  4 --
 target-i386/helper.c            |  9 ++--
 target-i386/kvm.c               | 23 +++++------
 target-i386/misc_helper.c       |  8 ++--
 26 files changed, 403 insertions(+), 137 deletions(-)

-- 
1.8.1.4