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

GSRBK

Prolog  

Control Block Contents  
   GSRBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


GSRBK Prolog

 NAME       : HCPGSRBK
 DESCRIPTION: GUEST SURVIVAL RECORDING BLOCK
 DSECT      : GSRBK
 FUNCTION   : CONTAINS SAVE AREAS FOR QUEUE ANCHORS AND PARTS
              OF THE GUESTS' PREFIX PAGE FOR GUEST SURVIVAL
 LOCATED BY : VMDGSRBK FIELD OF HCPVMDBK
 CREATED BY : HCPVRR AT V=R LOGON
 DELETED BY : HCPVRR AT V=R LOGOFF

 

GSRBK Control Block Content


GSRBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      GSRBK          GUEST SURVIVAL RECORDING BLOCK
0000    0 Bitstring   24 GSRIPL         IPL RECORD (ABSOLUTE 0 TO 23 -
                                        <X'00'-X'17'> IN V=R
                                        REGION).
0018   24 Bitstring   96 GSRLOG         MACHINE CHECK LOGOUT AREA -
                                        (ABSOLUTE 256-352
                                        <X'100'-X'15F'> - IN V=R
                                        REGION)
0078  120 Address      4 GSRRDEV        STACK OF RDEVS FOR RECOVERY
007C  124 Address      4 GSRMCVBK       MACHINE CHECK BLOCK FOR V=R GUEST
0080  128 Address      4 GSRCUIBK       Stack of CUIBKs for recovery
0084  132 Address      4 GSRTRQBK       TIMER REGUEST TO BE REFLECTED
0088  136 Address      4 GSRSPIOR       ANCHOR FOR SPARE IORBK QUEUE
008C  140 Signed       4 GSRMXIOR       MAXIMUM SPARE IORBKS REQUIRED
0090  144 Signed       4 GSRCTIOR       CURRENT SPARE IORBKS ALLOCATED
0094  148 Address      4 GSRMDISK       V=R MDISK anchor
0098  152 Address      4 GSRRDCBK       QUEUE OF RDCBKS FOR RECOVERY
009C  156 Address      4 GSRRSEBK       Reset Event Status Block Anchor
00A0  160 Address      4 GSRRCDBK       Read Config Data Block Anchor
          00000015       GSRSIZE        (*-GSRBK+7)/8 LENGTH OF A GSRBK
          00000002       GSRSPARE       2 MUMBER OF SPARE IORBKS PER
                                        DEVICE

 

GSRBK Storage Layout

          
*** GSRBK - GUEST SURVIVAL RECORDING BLOCK
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                        GSRIPL                         =
*     |                                                       |
*     +-------------------------------------------------------+
*  18 |                                                       |
*     =                        GSRLOG                         =
*     |                                                       |
*     +---------------------------+---------------------------+
*  78 |         GSRRDEV           |         GSRMCVBK          |
*     +---------------------------+---------------------------+
*  80 |         GSRCUIBK          |         GSRTRQBK          |
*     +---------------------------+---------------------------+
*  88 |         GSRSPIOR          |         GSRMXIOR          |
*     +---------------------------+---------------------------+
*  90 |         GSRCTIOR          |         GSRMDISK          |
*     +---------------------------+---------------------------+
*  98 |         GSRRDCBK          |         GSRRSEBK          |
*     +---------------------------+---------------------------+
*  A0 |         GSRRCDBK          | A4
*     +---------------------------+
*
*** GSRBK - GUEST SURVIVAL RECORDING BLOCK

 

GSRBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
GSRCTIOR       0090
GSRCUIBK       0080
GSRIPL         0000
GSRLOG         0018
GSRMCVBK       007C
GSRMDISK       0094
GSRMXIOR       008C
GSRRCDBK       00A0
GSRRDCBK       0098
GSRRDEV        0078
GSRRSEBK       009C
GSRSIZE        00A0 00000015
GSRSPARE       00A0 00000002
GSRSPIOR       0088
GSRTRQBK       0084

This information is based on z/VM V4R2.0. Last updated on 18 Oct 2001 at 08:01:41 EDT.
Copyright IBM Corporation, 1990, 2001