Except for MtrrSetAllMtrrs(), others services are not suggested to be invoked by APs because they are not necessary and may invoke DEBUG() to dump MTRR setting. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed: Laszlo Ersek <lersek@redhat.com>