Re: [Xen-users] Help with CPUID & Multicore Support

["Nick Couchman" <Nick.Couchman@xxxxxxxxx>]

Yes, that example is in the xmexample.hvm file that I mentioned earlier.  However, since my box has a total of 4 cores (2 x dual-core), this 8-core config doesn't run very well.  I need to see about setting up 2 x dual-core VCPUs or 1 x quad-core VCPU.

 

-Nick

>>> On 2009/06/02 at 03:18, Andrew Lyon <andrew.lyon@xxxxxxxxx> wrote:

I dont know about quad core, but here is the setting to give a guest a
single 8 core cpu:

cpuid='1:edx=xxx1xxxxxxxxxxxxxxxxxxxxxxxxxxxx,ebx=xxxxxxxx00010000xxxxxxxxxxxxxxxx','4,0:eax=001111xxxxxxxxxxxxxxxxxxxxxxxxxx']


Andy


On Mon, Jun 1, 2009 at 9:43 PM, Nick Couchman <Nick.Couchman@xxxxxxxxx> wrote:
> Hi, folks,
>
> I was hoping someone could help me figure out how to use the cpuid value for
> different numbers of cores per socket in my HVM domUs.  The directions in
> the examples in the xmexample.hvm file are a little bit vague, I'm afraid,
> and I cannot figure out how to make a single quad-core processor appear on
> one of my guests.  Can someone give me some hints on this?  I'm running
> Intel processors.
>
> Thanks,
>
> Nick
>
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