DD4PARM0 Back to Index page
 
Prolog 
Control Block Contents 
   DD4PARM0 DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This page documents intended Programming Interfaces that
allow the customer to write programs to obtain the services of z/VM.


  DD4PARM0 Prolog Top of page
  
 NAME       : DD4PARM0
 DESCRIPTION: ALTERNATE USER SUPPORT INTERFACE FOR DIAG X'D4'.
 DSECT      : DD4PARM0
 FUNCTION   : THIS BLOCK IS USED AS AN INTERFACE
              TO COMMUNICATE THE USERID OF THE WORKER VIRTUAL
              MACHINE AND THE USERID OF THE END USER TO DIAG X'D4'.
              For subcode 4, the SECLABEL of the end user
              is also included.
 LOCATED BY : HCPVDG
 CREATED BY : ANY MODULE PRIOR TO EXECUTION OF DIAG X'D4'.
 DELETED BY : THE MODULE THAT CREATED IT.
 RELOCATION CONSIDERATIONS : None
 
 
  DD4PARM0 Control Block Content Top of page
  




 DD4PARM0 DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      DD4PARM0       ALTERNATE USER SUPPORT INTERFACE FOR DIAG X'D4'.
0000    0 Character    8 DD4PTGT        USERID OF WORKER WHICH WILL RUN
                                        WITH ALTERNATE ID.
0008    8 Character    8 DD4PALT        USERID OF END USER REQUESTING
                                        WORK.
0010   16 Character    8 DD4ALTSC       SECLABEL of user requesting work.
          00000018       DD4BSIZE       *-DD4PARM0 SIZE IN BYTES
          00000003       DD4DSIZE       ((*-DD4PARM0)+7)/8 SIZE IN
                                        DOUBLEWORDS
 
 
  DD4PARM0 Storage Layout Top of page
  
          
*** DD4PARM0 - ALTERNATE USER SUPPORT INTERFACE FOR DIAG X'D4'.
*
*     +-------------------------------------------------------+
*   0 |                       DD4PTGT                         |
*     +-------------------------------------------------------+
*   8 |                       DD4PALT                         |
*     +-------------------------------------------------------+
*  10 |                       DD4ALTSC                        |
*     +-------------------------------------------------------+
*  18
*
*** DD4PARM0 - ALTERNATE USER SUPPORT INTERFACE FOR DIAG X'D4'.
 
 
  DD4PARM0 Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
DD4ALTSC       0010
DD4BSIZE       0010 00000018
DD4DSIZE       0010 00000003
DD4PALT        0008
DD4PTGT        0000
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:46:53 EDT.
Copyright IBM Corporation, 1990, 2022