Re: [Qemu-devel] [PATCH v2 00/11] cpu: add i386 cpu hot remove support

[Zhi Yong Wu <zwu.kernel@gmail.com>]

On Fri, Feb 6, 2015 at 3:54 PM, Zhu Guihua <zhugh.fnst@cn.fujitsu.com> wrote:
> On Tue, 2015-02-03 at 16:41 +0800, Zhi Yong Wu wrote:
>> HI,
>>
>> Can you push the patchset to a branch on github? It will be convenient
>> for other guys to do some tests.
>
> sorry for late reply.
> I had pushed into https://github.com/zhugh/qemu.git
> The patchset is on branch cpu-hotplug.
>
> Welcome to test, Thanks.
HI,

Can you let me know why device_add can't support the vCPU with 'host' model?

>
> Regards,
> Zhu
>
>>
>> On Wed, Jan 14, 2015 at 3:44 PM, Zhu Guihua <zhugh.fnst@cn.fujitsu.com> 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.
>> > [RESEND PATCH v1 0/5] Common unplug and unplug request cb for memory and CPU hot-unplug
>> > https://lists.nongnu.org/archive/html/qemu-devel/2015-01/msg00429.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 v3 0/7] cpu: add device_add foo-x86_64-cpu support
>> > https://lists.nongnu.org/archive/html/qemu-devel/2015-01/msg01552.html
>> >
>> > ---
>> > 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 (5):
>> >   acpi/cpu: add cpu hot unplug request callback function
>> >   acpi/piix4: add cpu hot unplug callback support
>> >   acpi/ich9: add cpu hot unplug support
>> >   pc: add cpu hot unplug callback support
>> >   cpus: reclaim allocated vCPU objects
>> >
>> > Zhu Guihua (4):
>> >   acpi/piix4: add cpu hot unplug request callback support
>> >   acpi/ich9: add cpu hot unplug request callback support
>> >   pc: add cpu hot unplug request callback support
>> >   acpi/cpu: add cpu hot unplug callback function
>> >
>> >  cpus.c                            | 44 ++++++++++++++++++++
>> >  hw/acpi/cpu_hotplug.c             | 88 ++++++++++++++++++++++++++++++++++++---
>> >  hw/acpi/ich9.c                    | 17 ++++++--
>> >  hw/acpi/piix4.c                   | 12 +++++-
>> >  hw/core/qdev.c                    |  2 +-
>> >  hw/cpu/icc_bus.c                  | 11 +++++
>> >  hw/i386/acpi-dsdt-cpu-hotplug.dsl |  6 ++-
>> >  hw/i386/kvm/apic.c                |  8 ++++
>> >  hw/i386/pc.c                      | 62 +++++++++++++++++++++++++--
>> >  hw/intc/apic.c                    | 10 +++++
>> >  hw/intc/apic_common.c             | 21 ++++++----
>> >  include/hw/acpi/cpu_hotplug.h     |  8 ++++
>> >  include/hw/cpu/icc_bus.h          |  1 +
>> >  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 ++++++++++++++++++++
>> >  19 files changed, 378 insertions(+), 27 deletions(-)
>> >
>> > --
>> > 1.9.3
>> >
>> >
>>
>>
>>
>
>



-- 
Regards,

Zhi Yong Wu