David Gibson <da...@gibson.dropbear.id.au> writes: > On Wed, Sep 06, 2017 at 01:57:48PM +0530, Nikunj A Dadhania wrote: >> When the user does not provide the cpu topology, e.g. "-smp 4", machine >> fails to >> initialize 4 cpus. Compute the chip per cores depending on the number of >> chips >> and smt threads. >> >> Signed-off-by: Nikunj A Dadhania <nik...@linux.vnet.ibm.com> > > I don't understand why simply treating smp_cores as cores per chip is wrong.
We do not have SMT support and when "-smp 4" is passed, smp_cores is always set to 1. So only once core with one thread finally show up in the guest. Moreover, I see spapr too doing similar thing in spapr_init_cpus() with boot_cores_nr. Regards Nikunj
