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Date: Thu, 11 Sep 2014 17:53:09 +0800
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
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Subject: Re: [Qemu-devel] [RFC V2 10/10] cpus: reclaim allocated vCPU objects
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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>

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=EF=BC=8Cbefore 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.
>=20
> 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

>=20
> Regards,
> Bharata.
> .
>=20