On Wed, 2011-09-21 at 15:02 +0200, erik.r...@rdsoftware.de wrote:
> 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?
See the extended -smp options:
-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]
set the number of CPUs to 'n' [default=1]
maxcpus= maximum number of total cpus, including
offline CPUs for hotplug, etc
cores= number of CPU cores on one socket
threads= number of threads on one CPU core
sockets= number of discrete sockets in the system
Try something like:
-smp 4,cores=2,threads=2,sockets=1
Alex
