On Wed, Oct 26, 2011 at 02:19:00PM +0200, Vasilis Liaskovitis wrote: > qemu-kvm passes numa/SRAT topology information for smp_cpus to SeaBIOS. However > SeaBIOS always expects to setup max_cpus number of SRAT cpu entries > (MaxCountCPUs variable in build_srat function of Seabios). When qemu-kvm runs > with smp_cpus != max_cpus (e.g. -smp 2,maxcpus=4), Seabios will mistakenly use > memory SRAT info for setting up CPU SRAT entries for the offline CPUs. Wrong > SRAT memory entries are also created. This breaks NUMA in a guest. > Fix by setting up SRAT info for max_cpus in qemu-kvm. > > Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@xxxxxxxxxxxxxxxx> It looks okay to me, but I'd like to see an Ack from a QEmu or KVM maintainer. -Kevin -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
