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From: Mohsin Kazmi <mohsin.kazmi14@gmail.com>
To: zhugh.fnst@cn.fujitsu.com
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] Unparking vCPU mechanism
Date: Thu, 16 Apr 2015 12:50:37 +0200	[thread overview]
Message-ID: <CAKkt9+KkA=ww-29JAHZ_0Nd6-vTKKzOdxhjWnKZgLhKDzx3U0A@mail.gmail.com> (raw)

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Hi Zhu,
          I am testing the hot unplug feature using your github branch
'cpu-hotplug'. It is working fine when first time I added and deleted cpu.
But when I tried to add cpu second time, it showed me the following error:
(qemu) device_add kvm64-x86_64-cpu,apic-id=1,id=cpu1
           Duplicate ID 'cpu1' for device

I get from one of your patch (https://patchwork.ozlabs.org/patch/439485/)
commit message that cpu is not literally removed from qemu but guest is
unable to use it anymore. Do you know the way how I can reuse that cpu
which has already added and deleted once. Or unparking the cpu mechanism.

Thanks,
Mohsin Kazmi

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             reply	other threads:[~2015-04-16 10:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-16 10:50 Mohsin Kazmi [this message]
2015-04-20  9:19 ` [Qemu-devel] Unparking vCPU mechanism Zhu Guihua
2015-04-20 12:16   ` Mohsin Kazmi
2015-04-20 13:13     ` Mohsin Kazmi

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