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[Qemu-devel] Enabling Hyperthreading for Guest

From: erik . rull
Subject: [Qemu-devel] Enabling Hyperthreading for Guest
Date: Wed, 21 Sep 2011 15:02:28 +0200

Hi all,

I'm searching for a switch to enable hyperthreading for my Windows XP
Guest. Currently I only get 2 cores available in the taskmanager but listed
4 or 8 (depending on the smp-switch).

After having read that XP supports only up to 2 cores but also with HT this
should show me 4 cores.
What must I do to get 4 cores visible in the Windows taskmanager?
Is there a QEMU-BIOS option to enable?

Thanks in advance,


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