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

#### GRBK

Prolog

Control Block Contents
GRBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### GRBK Prolog

     NAME       : HCPGRBK
     DESCRIPTION: Guest response block
     DSECT      : GRBK
     FUNCTION   : Holds response information from one guest to be placed
                  in the guest response summary
     LOCATED BY : HCPGRSBK - Guest responses summary
     CREATED BY : HCPDDS - Dedicated DASD simulation
                  - HCPTSS - Tape subsystem simulation and reset
     DELETED BY : HCPGRB - Guest responses summary processor

#### GRBK Control Block Content

#### GRBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      GRBK           Guest response block
    0000    0 Address      4 GRBNEXT        Pointer to next GRBK
    0004    4 Character    8 GRBVMDUS       VMDUSER
    000C   12 Bitstring    1 GRBRCODE       Response code in response
    000D   13 Character    2 GRBDEVNO       Device number in response
    000F   15 Bitstring    1 GRBCHPID       CHPID in response
              00000002       GRBSIZE        ((*-GRBK)+7)/8 GRBK size in
                                            double words

#### GRBK Storage Layout

    *** GRBK - Guest response block
    *
    *     +---------------------------+---------------------------+
    *   0 |         GRBNEXT           |        GRBVMDUS-          |
    *     +---------------------------+------+-------------+------+
    *   8 |          -(004)           |:RCODE|  GRBDEVNO   |:CHPID|
    *     +---------------------------+------+-------------+------+
    *  10
    *
    *** GRBK - Guest response block

#### GRBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    GRBCHPID       000F
    GRBDEVNO       000D
    GRBNEXT        0000
    GRBRCODE       000C
    GRBSIZE        000F 00000002
    GRBVMDUS       0004

This information is based on z/VM V4R3.0. Last updated on 1 May 2002 at 08:55:27 EDT.
Copyright IBM Corporation, 1990, 2002