While browsing the SA22-7832-13 version of Principles of Operation I saw this text on Page 1-28:
|Storage-Key-Removal Facility | |The storage-key-removal facility may be available on a model |implementing z/Architecture. A configuration with the |storage-key-removal facility installed does not have the ability to |use any key protection mechanisms. Setting or reading of a storage |key is prohibited and the PSW key and any specified key must be zero |otherwise an exception condition is recognized. Can any of you provide some insight regarding the motivation for the introduction of this facility, and perhaps what operating system might exploit it? Thanks. Bob
