[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v2 00/11] cpu: add i386 cpu hot remove support
From: |
Zhu Guihua |
Subject: |
Re: [Qemu-devel] [PATCH v2 00/11] cpu: add i386 cpu hot remove support |
Date: |
Fri, 13 Feb 2015 19:08:03 +0800 |
On Thu, 2015-02-12 at 19:49 +0800, Zhu Guihua wrote:
> On Tue, 2015-02-10 at 20:38 +0800, Zhi Yong Wu wrote:
> > On Fri, Feb 6, 2015 at 3:54 PM, Zhu Guihua <address@hidden> 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?
> >
> > >
>
> I have not noticed this before, thanks for your mentioning.
>
> host_x86_cpu does not support hotplug by default, we will fix this in
> next version.
I underestimated the complexity of this issue, and expect to handle this
in v5 for x86_64-cpu device_add. Thanks.
Regards,
Zhu
> Regards,
> Zhu
>
> > > Regards,
> > > Zhu
> > >
> > >>
> > >> On Wed, Jan 14, 2015 at 3:44 PM, Zhu Guihua <address@hidden> 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
> > >> >
> > >> >
> > >>
> > >>
> > >>
> > >
> > >
> >
> >
> >
>
>
>