The patch adds a new API PlatformBootManagerUnableToBoot() to PlatformBootManagerLib. The new API is provided by platform bds library and is called when no boot option could be launched. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Sean Brogan <sean.brogan@microsoft.com> Cc: Michael Turner <Michael.Turner@microsoft.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Sunny Wang <sunnywang@hpe.com>