[re-adding libvir-list]
On Wed, May 30, 2018 at 19:36:10 +0800, Dou Liyang wrote:
> Hi Peter,
>
> Sorry to trouble you offline.
Please keep conversations on the list, so that it does not get lost in
private inboxes.
> Recently, I forced on the PCID feature in CPU and
> found the SandyBridge didn't include the PCID feature
> in libvirt.
>
> commit cad8054ece285d1712880cd108e8a39f833f7e88
> Author: Peter Krempa <pkrempa@xxxxxxxxxx>
> Date: Wed Feb 8 12:43:07 2012 +0100
>
> cpu: Add cpu definition for Intel Sandy Bridge cpu type
>
> I knew the SandyBridge CPU models in QEMU also
> didn't include the PCID feature.
>
> I want to know:
>
> - If we can't make sure PCID was supported in all SandyBridge?
> - If we avoided PCID definition intentionally ?
> - If we forgot to add it, and need to be fixed?
Qemu added it later than libvirt added the sandy-bridge cpu:
commit 434acb817b8ae747f31e91ec152f9f47ac514433
Author: Mao, Junjie <junjie.mao@xxxxxxxxx>
Date: Fri Jul 20 07:08:21 2012 +0000
Recognize PCID feature
This patch makes Qemu recognize the PCID feature specified from configuration or command line options.
Jiri Denemark already covered why we can't/will not change existing
models in cpu_map.xml
>
> Thanks,
> dou
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