Nathan Lynch [off-list ref] writes:

aside: does anyone know if the display_status() code is worth keeping?
It looks like it is used to drive the 16-character wide physical LCD I
remember seeing on P4-era and older machines. Is it a vestige of
non-LPAR pseries that should be dropped, or is it perhaps useful for
chrp or cell?

Never mind, I see the display-character token and associated properties
on a P8 LPAR and in a current PAPR.