Re: [Qemu-devel] [PATCH v3 0/7] cpu: add i386 cpu hot remove support

[Zhu Guihua]

Hi,
On 06/24/2015 09:28 PM, Eduardo Otubo wrote:
> Hello Zhu,
>
> Are you still working on this feature? Could you provide a rebased
> version of this series?

Sorry for late reply.

Yes, we are still working on this feature.

I have updated my github, you can get the rebased version from it.

https://github.com/zhuguihua/qemu.git  cpu-hotplug

Thanks,
Zhu

> Regards,
>
> On Fri, Feb 13, 2015 at 06=40=15PM +0800, Zhu Guihua wrote:
> > This series is based on chen fan's previous i386 cpu hot remove patchset:
> > https://lists.nongnu.org/archive/html/qemu-devel/2013-12/msg04266.html
> >
> > Via implementing ACPI standard methods _EJ0 in ACPI table, after Guest
> > OS remove one vCPU online, the fireware will store removed bitmap to
> > QEMU, then QEMU could know to notify the assigned vCPU of exiting.
> > Meanwhile, intruduce the QOM command 'device_del' to remove vCPU from
> > QEMU itself.
> >
> > The whole work is based on the new hot plug/unplug framework, ,the unplug 
> > request
> > callback does the pre-check and send the request, unplug callback does the
> > removal handling.
> >
> > This series depends on tangchen's common hot plug/unplug enhance patchset.
> > [PATCH v2 0/5] Common unplug and unplug request cb for memory and CPU hot-unplug
> > https://lists.nongnu.org/archive/html/qemu-devel/2015-01/msg03929.html
> >
> > The is the second half of the previous series:
> > [RFC V2 00/10] cpu: add device_add foo-x86_64-cpu and i386 cpu hot remove 
> > support
> > https://lists.nongnu.org/archive/html/qemu-devel/2014-08/msg04779.html
> >
> > If you want to test the series, you need to apply the 'device_add 
> > foo-x86_64-cpu'
> > patchset first:
> > [PATCH v4 00/10] cpu: add device_add foo-x86_64-cpu support
> > https://lists.nongnu.org/archive/html/qemu-devel/2015-02/msg02584.html
> >
> > ---
> > Changelog since v2:
> >   -drop ICC bus impl
> >   -fix delete cpu exceed 32 issue
> >   -fix bug about deleting the last cpu
> >
> > Changelog since v1:
> >   -rebase on the latest version.
> >   -delete patch i386/cpu: add instance finalize callback, and put it into 
> > patchset
> >    [PATCH v3 0/6] cpu: add device_add foo-x86_64-cpu support.
> >
> > Changelog since RFC:
> >   -splited the i386 cpu hot remove into single thread.
> >   -replaced apic_no with apic_id, so does the related stuff to make it
> >    work with arbitrary CPU hotadd.
> >   -add the icc_device_unrealize callback to handle apic unrealize.
> >   -rework on the new hot plug/unplug platform.
> > ---
> >
> > Chen Fan (2):
> >    x86: add x86_cpu_unrealizefn() for cpu apic remove
> >    cpu hotplug: implement function cpu_status_write() for vcpu ejection
> >
> > Gu Zheng (3):
> >    acpi/cpu: add cpu hot unplug request callback function
> >    acpi, pc: add cpu hot unplug callback support
> >    cpus: reclaim allocated vCPU objects
> >
> > Zhu Guihua (2):
> >    acpi, pc: add cpu hot unplug request callback support
> >    acpi/cpu: add cpu hot unplug callback function
> >
> >   cpus.c                            | 44 ++++++++++++++++++++
> >   hw/acpi/cpu_hotplug.c             | 87 ++++++++++++++++++++++++++++++++++++---
> >   hw/acpi/ich9.c                    | 17 ++++++--
> >   hw/acpi/piix4.c                   | 12 +++++-
> >   hw/core/qdev.c                    |  2 +-
> >   hw/i386/acpi-dsdt-cpu-hotplug.dsl | 16 ++++++-
> >   hw/i386/kvm/apic.c                |  5 +++
> >   hw/i386/pc.c                      | 68 ++++++++++++++++++++++++++++--
> >   hw/intc/apic.c                    |  9 ++++
> >   hw/intc/apic_common.c             | 21 ++++++----
> >   include/hw/acpi/cpu_hotplug.h     |  8 ++++
> >   include/hw/i386/apic_internal.h   |  1 +
> >   include/hw/qdev-core.h            |  1 +
> >   include/qom/cpu.h                 |  9 ++++
> >   include/sysemu/kvm.h              |  1 +
> >   kvm-all.c                         | 57 ++++++++++++++++++++++++-
> >   target-i386/cpu.c                 | 46 +++++++++++++++++++++
> >   17 files changed, 377 insertions(+), 27 deletions(-)
> >
> > --
> > 1.9.3