Tuesday, August 3, 2010: 1:30 PM-2:30 PM
Room 203 (Hynes Convention Center)
Or, "How to Stuff Multiple Instances of 10 Pounds into a 5 Pound Bag (Keeping Them All Separate)"
The presentation will contain a review of dynamic address translation (DAT) features, beginning with:
* Original -recipe DAT 24-bit virtual/real in S/370
* Why: It's not just about over-committed real storage and paging
* Maybe a word or two on 26-bit real
* Expansion to 31-bit virtual/real in 370-XA
* Data spaces versus address spaces
* Expansion to 64-bit virtual/real in z/Architecture
The changes introduced by the Enhanced-DAT (EDAT) facility will be described, including:
* Global enablement controls
* DAT protection
* Megabyte frames (and the corresponding controls)
* Key-controlled protection at the segment level
* Change-recording override
* LB effects
* PERFORM FRAME MANAGEMENT FUNCTION instruction
* Changes to other control instructions
Tracks: Architecture, Assembler Intermediate, CICS Systems Programming, Linux Systems Management, z/OS Systems Programming and z/VM Systems Programming
