From mboxrd@z Thu Jan  1 00:00:00 1970
From: Todd And Margo Chester <toddandmargo@gmail.com>
Subject: Can I configure cores instead of CPU's
Date: Sun, 04 Dec 2011 17:27:43 -0800
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Cc: Frank Hauptle <frank.hauptle@uwa.edu.au>
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> Hi All,
>
> Scientific Linux 6.1 x64
> qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64
>
> My XP-Pro guest will only let me use two CPUs.
>
> Is there a way I can tell Virt-Manager to use
> one CPU with four cores instead of four separate
> CPUs?
>
> Many thanks,
> -T


Hi Frank,

Figured out what I was doing wrong.  In virt-manager,
Processor, as soon as I clinked on the "Copy host CPU
configuration" button (Nelhalem, by the way), when
I went to "topology", I was able to configure:
    socket = 1
    cores  = 4
    thread = 1
And, this time XP-Pro saw the cores as cores and not
individual CPUs.

I even got fancy and tried
    socket = 1
    cores  = 2
    thread = 2
And that worked too.  Yipee!

My mistake was not clicking on the "Copy host CPU
configuration" button.

Thank you for all the help in getting me there.

Happy Camper,
-T