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

CFEBK

Prolog  

Control Block Contents  
   CFEBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


CFEBK Prolog

 Name       : HCPCFEBK
 Description: Map the HCPIODCW resident data area
 DSECT      : CFEBK
 Function   : Map system variables that are set during
              system initialization.  For non ESAME machines
              use the old X'7FFFFF02' address for CP forced
              errors.  For ESAME capable machines use the
              new X'8FFFFF02' address.  ESAME machines
              guaranty that bit 0 in the CCW data address
              will be checked late (at data access time).
 Located by : HCPIODcw
 Created by : HCPIIOrl
 Deleted by : none

 

CFEBK Control Block Content


CFEBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      CFEBK          Map the HCPIODCW resident data
                                        area
     CP-Forced program check
0000    0 Signed       4 CFEPRGAD       X'7FFFFF02' or X'8FFFFF02'
     CP-Forced protection check
0004    4 Signed       4 CFEPRTAD       X'7FFFFF04' or X'8FFFFF04'
     CP-Forced interface control check
0008    8 Signed       4 CFEIFCAD       X'7FFFFF06' or X'8FFFFF06'
     CP-Forced incorrect length
000C   12 Signed       4 CFEICLAD       X'7FFFFF08' or X'8FFFFF08'
     CP-Forced protection check in IDA
0010   16 Signed       4 CFEIDAPT       X'7FFFF800' or X'8FFFF800'
     CP-Forced program check in IDA
0014   20 Signed       4 CFEIDAPG       X'FFFFFF02'
     CP-Forced storage errors for fmt2
0018   24 Signed       4 CFEIDAPC       IDAWs X'FFFFF000'
          0000001C       CFEBKBYL       *-CFEBK
          00000004       CFEBKDSZ       ((CFEBKBYL+7)/8) Doubleword
                                        length of CFEBK

 

CFEBK Storage Layout

          
*** CFEBK - Map the HCPIODCW resident data area
*
*     +---------------------------+---------------------------+
*   0 |         CFEPRGAD          |         CFEPRTAD          |
*     +---------------------------+---------------------------+
*   8 |         CFEIFCAD          |         CFEICLAD          |
*     +---------------------------+---------------------------+
*  10 |         CFEIDAPT          |         CFEIDAPG          |
*     +---------------------------+---------------------------+
*  18 |         CFEIDAPC          | 1C
*     +---------------------------+
*
*** CFEBK - Map the HCPIODCW resident data area

 

CFEBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
CFEBKBYL       0018 0000001C
CFEBKDSZ       0018 00000004
CFEICLAD       000C
CFEIDAPC       0018
CFEIDAPG       0014
CFEIDAPT       0010
CFEIFCAD       0008
CFEPRGAD       0000
CFEPRTAD       0004

This information is based on z/VM V4R3.0. Last updated on 30 Apr 2002 at 15:44:04 EDT.
Copyright IBM Corporation, 1990, 2002