KVM detection

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

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

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

  else

    KVM_ERR="(cpuinfo "$(egrep -c '(vmx|svm)' /proc/cpuinfo)")"

  fi

else

  [ -e /dev/kvm ] && KVM_ERR="(no write access)" || KVM_ERR="(device file missing)"

fi

if [ -z "${KVM_OPTS}" ]; then

  echo "Error: KVM acceleration is disabled.."

  echo "Error: KVM acceleration not detected ${KVM_ERR}, please enable KVM on your host!"

  [ "$DEBUG" != "Y" ] && exit 88

fi