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
    00A4  164 Address      4 GSRSTPBK       MULTIUSER Tape 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          |         GSRSTPBK          |
    *     +---------------------------+---------------------------+
    *  A8
    *
    *** 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        00A4 00000015
    GSRSPARE       00A4 00000002
    GSRSPIOR       0088
    GSRSTPBK       00A4
    GSRTRQBK       0084

This information is based on z/VM V4R3.0. Last updated on 30 Apr 2002 at 16:34:38 EDT.
Copyright IBM Corporation, 1990, 2002