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

FASBK

Prolog  

Control Block Contents  
   FASBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


FASBK Prolog

 NAME       : HCPFASBK
 DESCRIPTION: VMDUMP File Address Space Information
 DSECT      : FASBK
 FUNCTION   : Contains information about the VMDUMP file
              that is unique for each address space
              in the dump
 LOCATED BY : VDUFASBK
              FASNEXT
 CREATED BY : HCPVMBLK
 DELETED BY : HCPVCCLN
 REFERENCES : None
 COMMENTS   : obtained from free storage

 

FASBK Control Block Content


FASBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      FASBK          VMDUMP File Address Space Information
0000    0 Character    8 FASIASIT       Address space identification
                                        token (iASIT)
0008    8 Character    8 FASEASIT       eASIT
0010   16 Character  100 FASDUMID       Dump identifier for this address
                                        space
0074  116 Character    8 FASFORMT       Format of this address space
007C  124 Bitstring    1 FASFLAGS       Parsing flags
          1... ....      FASFORM        X'80' FASFORM 'Format' was
                                        specified
          .1.. ....      FASDCSS        X'40' FASDCSS 'DCSS' was
                                        specified
          ..1. ....      FASDMPID       X'20' FASDMPID Dumpid was
                                        specified
          ...1 ....      FASDCSSF       X'10' FASDCSSF DCSS's found to
                                        dump
          .... 1...      FAS1451        X'08' FAS1451 This address space
                                        was already found to be
                                        inaccessible. Msg 1451I was
                                        already issued.
007D  125 Bitstring    1 FASFLAG2       2nd General flag byte
          1... ....      FASNOMRG       X'80' FASNOMRG Don't merge the
                                        local and global bitmaps
007E  126 Character    2 *              Reserved for IBM use
0080  128 Address      4 FASNEXT        Address of next FASBK
0084  132 Address      4 FASDCSSP       Address of DSLs for DCSS list
0088  136 Address      4 FASDEFP        Pointer to DSLBKs that map
                                        defined (configured) storage.
008C  140 Address      4 FASSTOR        Pointer to DSLBKs that map all of
                                        storage
0090  144 Dbl-Word     8 FASDCSHG (0)   Byte address past highest defined
                                        (DCSS) storage address that is
                                        not higher than 512G
0090  144 Signed       4 FASDCSHH       High word
0094  148 Signed       4 FASDCSHI       Low word
0098  152 Dbl-Word     8 FASB2GDG (0)   Byte address past highest defined
                                        (configured) storage address that
                                        is < or = the Maximum Dumpable
                                        Address based on guest's
                                        architecture mode.
0098  152 Signed       4 FASB2GDH       High word
009C  156 Signed       4 FASB2GDL       Low word
00A0  160 Dbl-Word     8 FASB2GHG (0)   Byte address past highest address
                                        (configured or DCSS) that is <
                                        or = the Maximum Dumpable Address
                                        based on guest's architecture
                                        mode.
00A0  160 Signed       4 FASB2GHH       High word
00A4  164 Signed       4 FASB2GHL       Low word
00A8  168 Dbl-Word     8 FASHI          True Highest byte in address
                                        space. It may be above the
                                        Maximum Dumpable Address based on
                                        guest's architecture mode.
00B0  176 Address      4 FASGPAGM       Pointer to global bit map
00B4  180 Address      4 FASLPAGM       Pointer to local bit map
00B8  184 Signed       4 FASASIBK       Record number of ASIBK for this
                                        address space in SDF
00BC  188 Address      4 FASASIWK       Pointer to working copy of ASIBK
00C0  192 Signed       2 FASCOUNT       Number of sets of dumped storage
                                        for this address space in dump
00C2  194 Signed       2 *              Reserved for IBM use
00C4  196 Signed       4 * (4)          Reserved for IBM use
00D4  212 Bitstring    1 FAS$END (0)    Defines end of control blk

 

FASBK Storage Layout

          
*** FASBK - VMDUMP File Address Space Information
*
*     +-------------------------------------------------------+
*   0 |                       FASIASIT                        |
*     +-------------------------------------------------------+
*   8 |                       FASEASIT                        |
*     +-------------------------------------------------------+
*  10 |                                                       |
*     =                       FASDUMID                        =
*     |                           +---------------------------+
*     |                           |        FASFORMT-          |
*     +---------------------------+------+------+-------------+
*  78 |          -(074)           |:FLAGS|:FLAG2|/////////////|
*     +---------------------------+------+------+-------------+
*  80 |         FASNEXT           |         FASDCSSP          |
*     +---------------------------+---------------------------+
*  88 |         FASDEFP           |         FASSTOR           |
*     +---------------------------+---------------------------+
*  90 |         FASDCSHH          |         FASDCSHI          |
*     +---------------------------+---------------------------+
*  98 |         FASB2GDH          |         FASB2GDL          |
*     +---------------------------+---------------------------+
*  A0 |         FASB2GHH          |         FASB2GHL          |
*     +---------------------------+---------------------------+
*  A8 |                        FASHI                          |
*     +---------------------------+---------------------------+
*  B0 |         FASGPAGM          |         FASLPAGM          |
*     +---------------------------+---------------------------+
*  B8 |         FASASIBK          |         FASASIWK          |
*     +-------------+-------------+---------------------------+
*  C0 |  FASCOUNT   |/////////////|///////////////////////////|
*     +-------------+-------------+///////////////////////////|
*     |///////////////////////////////////////////////////////|
*     |///////////////////////////+---------------------------+
*     |///////////////////////////|
*     +---------------------------+
*
*** FASBK - VMDUMP File Address Space Information

 

FASBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
FAS$END        00D4
FASASIBK       00B8
FASASIWK       00BC
FASB2GDG       0098
FASB2GDH       0098
FASB2GDL       009C
FASB2GHG       00A0
FASB2GHH       00A0
FASB2GHL       00A4
FASCOUNT       00C0
FASDCSHG       0090
FASDCSHH       0090
FASDCSHI       0094
FASDCSS        007C 40
FASDCSSF       007C 10
FASDCSSP       0084
FASDEFP        0088
FASDMPID       007C 20
FASDUMID       0010
FASEASIT       0008
FASFLAGS       007C
FASFLAG2       007D
FASFORM        007C 80
FASFORMT       0074
FASGPAGM       00B0
FASHI          00A8
FASIASIT       0000
FASLPAGM       00B4
FASNEXT        0080
FASNOMRG       007D 80
FASSTOR        008C
FAS1451        007C 08

This information is based on z/VM V5R4.0. Last updated on 18 Feb 2010 at 03:39:56 EDT.
Copyright IBM Corporation, 1990, 2009