All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
To: Bharata B Rao <bharata.rao@gmail.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	tangchen@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com,
	anshul.makkar@profitbricks.com, chen.fan.fnst@cn.fujitsu.com,
	imammedo@redhat.com, "afaerber@suse.de" <afaerber@suse.de>
Subject: Re: [Qemu-devel] [RFC V2 10/10] cpus: reclaim allocated vCPU objects
Date: Thu, 11 Sep 2014 17:53:09 +0800	[thread overview]
Message-ID: <54117105.8000007@cn.fujitsu.com> (raw)
In-Reply-To: <CAGZKiBpO3oxijjXrdzdxo4n+dDmnQp7UP=hd7k4W03Xg_G85-A@mail.gmail.com>

On 09/11/2014 05:35 PM, Bharata B Rao wrote:

> On Thu, Aug 28, 2014 at 9:06 AM, Gu Zheng <guz.fnst@cn.fujitsu.com> wrote:
>> After ACPI get a signal to eject a vCPU, the vCPU must be
>> removed from CPU list，before the vCPU really removed,  then
>> release the all related vCPU objects.
>> But we do not close KVM vcpu fd, just record it into a list, in
>> order to reuse it.
> 
> After I add and delete a CPU, "info cpus" from monitor still lists the
> removed CPU. Is this expected ?

No, you can not see the removed cpu from QEMU (e.g. monitor) or guest side,
but from the kernel side it is still there, just no one uses it any more.

Thanks,
Gu

> 
> Regards,
> Bharata.
> .
> 

  parent reply	other threads:[~2014-09-11 10:06 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-28  3:36 [Qemu-devel] [RFC V2 00/10] cpu: add device_add foo-x86_64-cpu and i386 cpu hot remove support Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 01/10] cpu: introduce CpuTopoInfo structure for argument simplification Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 02/10] qom/cpu: move register_vmstate to common CPUClass.realizefn Gu Zheng
2014-09-09 12:17   ` Igor Mammedov
2014-09-10  2:38     ` Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 03/10] cpu: add device_add foo-x86_64-cpu support Gu Zheng
2014-09-09 12:44   ` Igor Mammedov
2014-09-10  3:37     ` Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 04/10] x86: add x86_cpu_unrealizefn() for cpu apic remove Gu Zheng
2014-09-09 13:58   ` Igor Mammedov
2014-09-11  3:06     ` Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 05/10] i386: add cpu device_del support Gu Zheng
2014-09-09 14:11   ` Igor Mammedov
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 06/10] qom cpu: rename variable 'cpu_added_notifier' to 'cpu_hotplug_notifier' Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 07/10] qom cpu: add UNPLUG cpu notify support Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 08/10] i386: implement pc interface cpu_common_unrealizefn() in qom/cpu.c Gu Zheng
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 09/10] cpu hotplug: implement function cpu_status_write() for vcpu ejection Gu Zheng
2014-09-09 14:28   ` Igor Mammedov
2014-08-28  3:36 ` [Qemu-devel] [RFC V2 10/10] cpus: reclaim allocated vCPU objects Gu Zheng
2014-09-09 14:40   ` Igor Mammedov
2014-09-10  3:54     ` Gu Zheng
2014-09-11  9:35   ` Bharata B Rao
2014-09-11  9:49     ` Gu Zheng
2014-09-11  9:53     ` Gu Zheng [this message]
2014-09-11 12:37       ` Bharata B Rao
2014-09-12  1:24         ` Gu Zheng
2014-09-12  8:09           ` Bharata B Rao
2014-09-12  9:53             ` Gu Zheng
2014-09-12 10:30               ` Bharata B Rao
2014-09-12 10:53               ` Anshul Makkar
2014-09-12 13:52                 ` Bharata B Rao
2014-09-12 15:34                   ` Anshul Makkar
2014-09-15  6:39                   ` Gu Zheng
2014-09-15 10:09                     ` Bharata B Rao
2014-09-15 10:33                       ` Anshul Makkar
2014-09-15 13:53                         ` Bharata B Rao
2014-09-15 14:29                           ` Anshul Makkar
2014-09-11 10:03     ` Anshul Makkar
2014-09-12 14:15   ` Igor Mammedov
2014-09-15  5:03     ` Gu Zheng
2014-12-08  9:16   ` Bharata B Rao
2014-12-08  9:26     ` Peter Maydell
2014-12-08 10:28       ` Gu Zheng
2014-12-08 10:50         ` Peter Maydell
2014-12-08 15:38           ` Igor Mammedov
2014-12-08 16:38             ` Peter Maydell
2014-12-09  0:58               ` Gu Zheng
2014-12-09  0:58                 ` Gu Zheng
2014-12-08 10:12     ` Gu Zheng
2014-11-12  1:46 ` [Qemu-devel] [RFC V2 00/10] cpu: add device_add foo-x86_64-cpu and i386 cpu hot remove support Gu Zheng
2014-11-12  1:46 ` Gu Zheng
2014-11-12  7:57   ` Igor Mammedov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=54117105.8000007@cn.fujitsu.com \
    --to=guz.fnst@cn.fujitsu.com \
    --cc=afaerber@suse.de \
    --cc=anshul.makkar@profitbricks.com \
    --cc=bharata.rao@gmail.com \
    --cc=chen.fan.fnst@cn.fujitsu.com \
    --cc=imammedo@redhat.com \
    --cc=isimatu.yasuaki@jp.fujitsu.com \
    --cc=qemu-devel@nongnu.org \
    --cc=tangchen@cn.fujitsu.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.