Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

IOWBK

Prolog  

Control Block Contents  
   IOWBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

IOWBK Prolog

 NAME       : HCPIOWBK
 DESCRIPTION: DATATRACE TYPE IO WORKAREA
 DSECT      : IOWBK
 FUNCTION   : PROCESSOR LOCAL WORKAREA FOR TYPE IO EVENT
              HANDLER
 LOCATED BY : EVTIOWK
 CREATED BY : HCPTXW
 DELETED BY : HCPTXW
 RELOCATION CONSIDERATIONS : None
 

IOWBK Control Block Content

IOWBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IOWBK          DATATRACE TYPE IO WORKAREA
0000    0 Dbl-Word     8 IOWSTRUC (170) TABLE OF CCW ADDRESSES IN IO
                                        TRACE
          00000550       IOWSIZEB       (*-IOWBK) SIZE OF IOWBK IN BYTES
          000000AA       IOWSIZE        (*-IOWBK+7)/8 SIZE OF IOWBK IN
                                        DOUBLEWORDS
 

IOWBK Storage Layout

          
*** IOWBK - DATATRACE TYPE IO WORKAREA
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       IOWSTRUC                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 550
*
*** IOWBK - DATATRACE TYPE IO WORKAREA
 

IOWBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
IOWSIZE        0000 000000AA
IOWSIZEB       0000 00000550
IOWSTRUC       0000
This information is based on z/VM V6R2.0. Last updated on 21 Nov 2011 at 11:05:33 EDT.
Copyright IBM Corporation, 1990, 2011