CPUBK Back to Index page
 
Prolog 
Control Block Contents 
   CPUBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  CPUBK Prolog Top of page
  
 NAME       : HCPCPUBK
 DESCRIPTION: CPU DATA BLOCK
 DSECT      : CPUBK
 FUNCTION   : THE CPUBK CONTAINS INFORMATION ABOUT SPECIFIED
              VIRTUAL CPUS IN A CP COMMAND LINE.
 LOCATED BY : CPUBNXT CHAINED, CPABCUR (CPABK)
 CREATED BY : HCPCPU
 DELETED BY : HCPCPU
 RELOCATION CONSIDERATIONS : None
 
 
  CPUBK Control Block Content Top of page
  




 CPUBK DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      CPUBK          CPU DATA BLOCK
0000    0 Address      4 CPUBNXT        POINTER TO NEXT CPUBLOK
0004    4 Signed       4 *              RESERVED FOR IBM USE 16 DOUBLE
                                        WORDS FOR CPU ENTRIES
          00000008       CPUHDRLN       *-CPUBK LENGTH OF CPUBK HEADER
0008    8 Signed       2 CPUENTRY (0)   MAP OF THE ENTRIES IN CPUBK
0008    8 Dbl-Word     8 * (16)         16 ENTRIES IN EACH CPUBK
0008    8 Bitstring    1 CPUEFLAG       CPUBK ENTRY FLAGS
          1... ....      CPUEXIST       X'80' CPUEXIST FLAGS IF VMDBK
                                        EXIST FOR CPU
          .1.. ....      CPUETYMP       X'40' CPUETYMP MP TYPE ADJUNCT
                                        VMDBK (VMDTYPMP)
          ..1. ....      CPUETYUS       X'20' CPUETYUS BASE TYPE VMDBK
                                        (VMDTYPUS)
          ...1 ....      CPUELAST       X'10' CPUELAST LAST ENTRY IN THIS
                                        BLOCK
0009    9 Bitstring    1 *              RESERVED FOR IBM USE
000A   10 Signed       2 CPUECPUA       THE CPU ADDRESS
000C   12 Address      4 CPUEVMDA       ADDRESS OF THIS CPU'S VMDBK IF IT
                                        EXISTS
          00000008       CPUENTLN       *-CPUENTRY LENGTH OF THE DATA IN
                                        CPUBK
          00000088       CPULEN         *-CPUBK LENGTH OF CPUBK
          00000011       CPUSIZE        (CPULEN+7)/8 SIZE OF CPUBK
                                        (DOUBLEWORDS)
 
 
  CPUBK Storage Layout Top of page
  
          
*** CPUBK - CPU DATA BLOCK
*
*     +---------------------------+---------------------------+
*   0 |         CPUBNXT           |///////////////////////////|
*     +---------------------------+---------------------------+
*   8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  88
*
*** CPUBK - CPU DATA BLOCK
          
*** Overlay for CPUENTRY in CPUBK
*
*     +------+------+-------------+---------------------------+
*   8 |:EFLAG|//////|  CPUECPUA   |         CPUEVMDA          |
*     +------+------+-------------+---------------------------+
*  10
*
*** Overlay for CPUENTRY in CPUBK
 
 
  CPUBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
CPUBNXT        0000
CPUECPUA       000A
CPUEFLAG       0008
CPUELAST       0008 10
CPUENTLN       000C 00000008
CPUENTRY       0008
CPUETYMP       0008 40
CPUETYUS       0008 20
CPUEVMDA       000C
CPUEXIST       0008 80
CPUHDRLN       0004 00000008
CPULEN         000C 00000088
CPUSIZE        000C 00000011
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:48:23 EDT.
Copyright IBM Corporation, 1990, 2022