Re: [CentOS-virt] 4 CPU with WinXP on Centos 5.5 KVM?

Kenni Lund wrote:

2010/5/28 Marcelino Mata mmata@multimatic.com:

...

Has anyone had any success getting WinXP 32bit to use 4 CPU's under Centos 5.5 KVM?

I have tried everything and the best I can get is 2 CPU's. I tried everything listed here http://www.linux-kvm.com/content/running-windows-smp-guests I am using the VIRTIO drivers.

As it is discussed in the comments on the page you have linked above, XP only supports 2 CPUs but more cores.

AFAIK KVM will always emulate CPUs not cores.

In fact, newer qemu/kvm supports "cores" parameter when used with smp: https://patchwork.kernel.org/patch/33961/

RHEL6 beta has new kvm and qemu - it is possible to use multi-core CPU within virtualized winXP there.

Regards,

Nenad