#! /bin/bash kvm_setup_powerpc () { if grep '^platform[[:space:]]*:[[:space:]]*PowerNV' /proc/cpuinfo > /dev/null; then # PowerNV platform, which is KVM HV capable if [ -z "$SUBCORES" ]; then SUBCORES=1 fi # Step 1. Load the KVM HVmodule if ! modprobe -b kvm_hv; then return fi # Step 2. Configure subcore mode # FIXME: Should we check for POWER8 first? /usr/sbin/ppc64_cpu --subcores-per-core=$SUBCORES # Step 3. Disable SMT (multithreading) /usr/sbin/ppc64_cpu --smt=off fi } case $(uname -m) in ppc64|ppc64le) kvm_setup_powerpc ;; esac exit 0