From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jim Paris <jim@jtan.com>
Subject: Re: Unable to pass multiple cores / CPUs to guests
Date: Mon, 30 Jan 2012 12:44:45 -0500
Message-ID: <20120130174445.GA23238@psychosis.jim.sh>
References: <4F24FDBC.6000902@binarus.de>
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To: Binarus <lists@binarus.de>
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Binarus wrote:
> Dear all,
> 
> it seems that I am unable to pass multiple cores / CPUs to KVM
> guests. Whatever I do, the guests only report one CPU / core.
...
> /usr/bin/qemu-system-x86_64 -M pc -cpu host -smp cores=2,threads=1,sockets=1 -drive file=/dev/sda6,if=virtio,cache=none,index=0 -drive file=/dev/sdb,if=virtio,cache=none,index=1 -cdrom /dev/cdrom -pidfile ./qemu-garak.pid -boot c -k de -m 4096 -smp 1 -device pci-assign,host=01:05.0 -daemonize -usb -usbdevice "tablet" -name garak -net nic,vlan=0,model=virtio,macaddr=02:01:01:01:01:01 -net tap,vlan=0,ifname=virtnet1,script=/etc/qemu-ifup,downscript=/etc/qemu-ifup -vnc :1

Remove the "-smp 1".

-jim