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Re: [Xen-devel] How to get xen extra version from CPUID

To: Wayne Gong <wayne.gong@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] How to get xen extra version from CPUID
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 07 Jul 2009 10:28:26 +0100
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On 07/07/2009 10:22, "Wayne Gong" <wayne.gong@xxxxxxxxxx> wrote:

> Is there a way to get Xen extra version, which VM is running on, from
> CPUID or hypercall. Xen-detect.c just can get the major and minor
> version of Xen.

It's only accessible via the XENVER_extraversion hypercall.

 -- Keir



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