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

[Igor Mammedov]

On Wed, 22 Jun 2016 14:12:49 +0200
Eduardo Otubo <address@hidden> wrote:

> On Mon, Jul 13, 2015 at 09=45=57AM +0800, Zhu Guihua wrote:
> > 
> > On 07/09/2015 10:25 PM, Eduardo Otubo wrote:
> > >On Fri, Jun 26, 2015 at 11=37=43AM +0800, Zhu Guihua wrote:
> > >>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
> > >Hi, thanks a lot for rebasing it. I didn't have time to test it,
> > >though. I appologise.
> > >
> > >Regarding your branch, your plan is to stick with device_del and
> > >object_del interface?
> > 
> > Yeah, we will only stick with device_del interface.
> > There is no need to use object_del interface for cpu hot remove.
> > 
> > Thanks,
> > Zhu
> > 
> 
> This is almost a year old email, but I decided to git it a try anyway.
> Are you still working on this? I'm trying your patches and it seems I
> had a simple issue: EJ0 is sent, guest ack's and removes the CPU, but
> it get's stuck somewhere between the BIOS and Qemu. CPU is
> successfully removed from the guest, but it still appears on QOM:
I'm working on new version and I plan to post patches this week.

> 
>     (qemu) info cpus
>     * CPU #0: pc=0xffffffff8104f596 (halted) thread_id=22208
>       CPU #1: pc=0xffffffff8104f596 (halted) thread_id=22209
>       CPU #2: pc=0xffffffff810429c8 (halted) thread_id=22281
>     (qemu) info qom-tree 
>     /machine (pc-i440fx-2.1-machine)
>       /fw_cfg (fw_cfg_io)
>         /fwcfg[0] (qemu:memory-region)
>     
>     [...]
>     
>         /cpu3 (SandyBridge-x86_64-cpu)
>     
>     [...]
> 
> Do you have any clues?
>