$IORBK Back to Index page
 
Prolog 
Control Block Contents 
   $IORBK 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.


  $IORBK Prolog Top of page
 
 NAME       : LGRIORBK
 DESCRIPTION: Relocation mapping for HCPIORBK
 DSECT      : $IORBK
 FUNCTION   : LGRIORBK describes those fields of the IORBK that
              will be migrated to the destination system during
              guest relocation.
 LOCATED BY : This is a mapping of the RDODATA area within the
              RDOBK during guest relocation.
 CREATED BY : HCPRLFIF - IORBK Formatter for LGR
 DELETED BY : HCPRLDRL - Release storage associated with an RDP
 RELOCATION CONSIDERATIONS : This control block is used during live guest
              relocation.  It is used to relocate a control block
              defined in a corresponding HCP COPY file.  Any
              fields or bits defined in HCPIORBK which are
              required on the destination system must be defined
              here, and code must be added to migrate the field
              or bit during a relocation.
 
 
  $IORBK Control Block Content Top of page
 

 $IORBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure $IORBK Relocation mapping for HCPIORBK 00000001 $IOR_VER 1 Mapping version number for this DSECT. Version is independent of the CP level and need only be changed when this DSECT is changed. The convention is to increment by 1. 0000 0 Signed 2 $IOR_HDRL Header length (in bytes) 0002 2 Signed 2 $IOR_BITL Length of mapped bits (in bytes) 0004 4 Signed 4 * Reserved for future use 00000008 $IOR_HDLN *-$IORBK Length of header (bytes) Bit map: Contains the IORBK flags that are subject to relocation. These bits are defined sequentially, regardless of how they are defined in HCPIORBK. This yields a consistent mapping that ensures compatibility when a guest is relocated between systems at differing service levels. Names in the comments column indicate the control block byte which contains the flag. This name is subject to change if the flag definition changes. ====> NEVER change bits which already exist here. ====> NEVER change the order of bits in this section. ====> ALWAYS add new bits at the end of this section, together with new flag bytes as required. 0008 8 Signed 2 $IOR_BITS (0) Bit map area 0008 8 Bitstring 1 $IOR0 1... .... $IORRESUM X'80' $IORRESUM IORIFLG .1.. .... $IORCOPY X'40' $IORCOPY IORCFLG ..1. .... $IORSNS X'20' $IORSNS IORSTAT ...1 .... $IORCSNAV X'10' $IORCSNAV IORSTAT .... 1... $IORSIFCC X'08' $IORSIFCC IORSTAT .... .1.. $IORUIFCC X'04' $IORUIFCC IORGFLGS .... ..1. $IORCONT X'02' $IORCONT IORIFLG .... ...1 $IORPAVAF X'01' $IORPAVAF IORPAVFG 00000001 $IOR_BLEN *-$IOR_BITS Length of bit map area Data: Contains all HCPIORBK data that is subject to relocation, except for flag bits, which are handled separately. All fields are defined as XLnn to avoid alignment warnings and to pack the data efficiently. ====> NEVER change fields which already exist here. ====> NEVER change the order of fields in this section. ====> ALWAYS add new fields at the end of this section. together with new flag bytes as required. 0009 9 Bitstring 1 $IOR_DATA (0) Start of data map 0009 9 Bitstring 4 $IORFPNT Pointer to next queued IORBK 000D 13 Bitstring 4 $IORPIOR Pending interruption list 0011 17 Bitstring 32 $IORORB ORB 0031 49 Bitstring 4 $IORUCTL Saved guest control field values 0035 53 Bitstring 96 $IORIRB Interruption Response Block 0095 149 Bitstring 2 $IORSCNT Sense byte count 0097 151 Bitstring 32 $IORSDATA Sense data buffer 00B7 183 Bitstring 1 $IORPPEQS PPRC Extended Query Scope 00000017 $IORSIZE (*-$IORBK+7)/8 $IORBK DWord size
 
 
  $IORBK Storage Layout Top of page
 
          
*** $IORBK - Relocation mapping for HCPIORBK
*
*     +-------------+-------------+---------------------------+
*   0 | $IOR_HDRL   | $IOR_BITL   |///////////////////////////|
*     +------+------+-------------+------+--------------------+
*   8 |$IOR0 |         $IORFPNT          |     $IORPIOR-      |
*     +------+---------------------------+--------------------+
*  10 |-(00D)|                                                |
*     +------+                                                |
*  18 |                                                       |
*     =                       $IORORB                         =
*     |      +---------------------------+--------------------+
*  30 |      |         $IORUCTL          |                    |
*     +------+---------------------------+                    |
*  38 |                                                       |
*     =                       $IORIRB                         =
*     |                                  +-------------+------+
*  90 |                                  |  $IORSCNT   |      |
*     +----------------------------------+-------------+      |
*  98 |                                                       |
*     =                      $IORSDATA                        =
*     |                                                +------+
*  B0 |                                                |(0B7) |
*     +------------------------------------------------+------+
*  B8
*
*** $IORBK - Relocation mapping for HCPIORBK
 
 
  $IORBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
$IOR_BITL      0002
$IOR_BITS      0008
$IOR_BLEN      0008 00000001
$IOR_DATA      0009
$IOR_HDLN      0004 00000008
$IOR_HDRL      0000
$IOR_VER       0000 00000001
$IORCONT       0008 02
$IORCOPY       0008 40
$IORCSNAV      0008 10
$IORFPNT       0009
$IORIRB        0035
$IORORB        0011
$IORPAVAF      0008 01
$IORPIOR       000D
$IORPPEQS      00B7
$IORRESUM      0008 80
$IORSCNT       0095
$IORSDATA      0097
$IORSIFCC      0008 08
$IORSIZE       00B7 00000017
$IORSNS        0008 20
$IORUCTL       0031
$IORUIFCC      0008 04
$IOR0          0008
 
This information is based on z/VM 7.1.0 Last updated on 22 Jun 2018 at 11:54:29 EDT.
Copyright IBM Corporation, 1990, 2018