MC-1 mstatus has green fields that aren't clearly present

[james-ball-qualcomm]

The xs field also doesn't exist in MC-1 but shows up here. Was it added in a later Priv ISA version? Same goes for the sd field which is related.

[james-ball-qualcomm]

I looked at Priv ISA 1.11 and the XS and SD fields are defined but looking at some core vendor's documents, they just show XS and SD as being part of read-only 0 fields.