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Re: [Xen-devel] Xen CPU limit?

To: Martin Lukasik <martin.lukasik@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Xen CPU limit?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 29 Mar 2010 17:27:29 +0100
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Latest Xen supports up to 128 CPUs by default. Earlier versions you can try
rebuilding (for example): "make xen max_phys_cpus=64".

 -- Keir

On 11/03/2010 17:08, "Martin Lukasik" <martin.lukasik@xxxxxxxxxxxxx> wrote:

> Hello,
> Can somebody explain why the number of CPUs Xen can handle is limited to 32?
> I have a machine with 48 cores, and would love to virtualise it, but if
> I do it, I loose 16 CPUs, which isnt very good... :-(
> Where is this limit coming from? Or maybe it is possible to change it
> somewhere in the source files?
> Cheers,
> Martin
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