Shellcheck

KVM_OPTS=""

if [ -e /dev/kvm ] && sh -c 'echo -n > /dev/kvm' &> /dev/null; then

  if [[ $(grep -e vmx -e svm /proc/cpuinfo) ]]; then

  if grep -q -e vmx -e svm /proc/cpuinfo; then

    KVM_OPTS=",accel=kvm -enable-kvm -cpu host"

  fi

fi