[Qemu-devel] [RFC PATCH 0/7] hw/arm/virt: Add cpu-add way cpu hotplug support

[Shannon Zhao]

Add cpu-add hotplug support in machine virt. As there are some properties
which are set out of arm_cpu_initfn, so the way of device_add is not
supported now. This will add at next version. Some good suggestion?

This patchset is based on below patch:
[RFC PATCH v3 00/11] Generate ACPI v5.1 tables and      expose it to guest over 
fw_cfg on ARM
http://lists.gnu.org/archive/html/qemu-devel/2015-02/msg03290.html

Have done compile test and start a Linux guest, execute cpu-add in monitor, use 
info cpu
to check a new cpu created. But as the guest kernel driver is not ready, so it 
can't be
used by guest now.

Any comments are welcome.
Thanks,
Shannon

Shannon Zhao (7):
  hw/arm/virt: Add a GPIO controller
  hw/arm/virt-acpi-build: Add GPIO controller in ACPI DSDT table
  hw/acpi/virt-hotplug: Add a hotplug device for machine virt
  topology: Move topology.h to an arch-independent location
  target-arm/cpu: Add apic_id property for ARMCPU
  hw/arm/virt: Add cpu hotplug support
  hw/arm/virt-acpi-build: Add cpu hotplug support in ACPI

 default-configs/arm-softmmu.mak  |    2 +
 hw/acpi/Makefile.objs            |    1 +
 hw/acpi/aml-build.c              |  135 ++++++++++++++++++++++++++
 hw/acpi/cpu_hotplug.c            |   16 +---
 hw/acpi/ich9.c                   |   12 +++
 hw/acpi/piix4.c                  |   12 +++
 hw/acpi/virt-hotplug.c           |  141 +++++++++++++++++++++++++++
 hw/arm/virt-acpi-build.c         |  198 +++++++++++++++++++++++++++++++++++++-
 hw/arm/virt.c                    |  190 ++++++++++++++++++++++++++++++++++++-
 include/hw/acpi/aml-build.h      |   13 +++
 include/hw/acpi/cpu_hotplug.h    |    6 +-
 include/hw/acpi/topology.h       |  134 +++++++++++++++++++++++++
 include/hw/acpi/virt-hotplug.h   |   11 ++
 include/hw/arm/virt-acpi-build.h |    3 +
 target-arm/cpu-qom.h             |    1 +
 target-arm/cpu.c                 |   77 +++++++++++++++
 target-arm/cpu.h                 |    2 +
 target-i386/cpu.c                |    4 +-
 target-i386/topology.h           |  134 -------------------------
 tests/test-x86-cpuid.c           |   10 +-
 20 files changed, 940 insertions(+), 162 deletions(-)
 create mode 100644 hw/acpi/virt-hotplug.c
 create mode 100644 include/hw/acpi/topology.h
 create mode 100644 include/hw/acpi/virt-hotplug.h
 delete mode 100644 target-i386/topology.h