On Thu, Jan 28, 2016 at 11:19:43AM +0530, Bharata B Rao wrote: > Prevent guests from booting with CPU topologies that have partially > filled CPU cores or can result in partially filled CPU cores after > CPU hotplug like > > -smp 15,sockets=1,cores=4,threads=4,maxcpus=16 or > -smp 15,sockets=1,cores=4,threads=4,maxcpus=17. > > This is enforced by introducing MachineClass::validate_smp_config() > that gets called from generic SMP parsing code. Machine type versions > that want to enforce this can define this to the generic version > provided. > > Only sPAPR and PC machine types starting from version 2.6 enforce this in > this patch. > > Signed-off-by: Bharata B Rao <bhar...@linux.vnet.ibm.com>
I've been kind of lost in the back and forth about
threads/cores/sockets.
What, in the end, is the rationale for allowing partially filled
sockets, but not partially filled cores?
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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