$IPQBK

Prolog  

Control Block Contents  
   $IPQBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

$IPQBK Prolog

 NAME       : LGRIPQBK
 DESCRIPTION: Relocation mapping for HCPIPQBK
 DSECT      : $IPQBK
 FUNCTION   : LGRIPQBK describes those fields of the IPQBK 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 : HCPRLIIF - IPQBK 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 HCPIPQBK 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.

$IPQBK Control Block Content

$IPQBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      $IPQBK         Relocation mapping for HCPIPQBK
          00000001       $IPQ_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 $IPQ_HDRL      Header length (in bytes)
0002    2 Signed       2 $IPQ_BITL      Length of mapped bits (in bytes)
0004    4 Signed       4 *              Reserved for future use
          00000008       $IPQ_HDLN      *-$IPQBK Length of header (bytes)
      Bit map: Contains the IPQBK flags that are subject to
               relocation. These bits are defined sequentially,
               regardless of how they are defined in HCPIPQBK.
               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 $IPQ_BITS (0)  Bit map area
0008    8 Bitstring    1 $IPQ0
          1... ....      $IPQRELRG      X'80' $IPQRELRG IPQF0
          .1.. ....      $IPQABSRG      X'40' $IPQABSRG IPQF0
          ..1. ....      $IPQGSSC       X'20' $IPQGSSC IPQF0
          00000001       $IPQ_BLEN      *-$IPQ_BITS Length of bit map
                                        area
      Data:    Contains all HCPIPQBK 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 $IPQ_DATA (0)  Start of data map
0009    9 Bitstring    1 $IPQRQLO       Requested low range value
000A   10 Bitstring    1 $IPQRQHI       Requested high range value
000B   11 Bitstring    1 $IPQEFLO       Effective low range value
000C   12 Bitstring    1 $IPQEFHI       Effective high range value
000D   13 Bitstring    1 $IPQQULO       Queueing Calculation range LO
                                        value
000E   14 Bitstring    1 $IPQQUHI       Queueing Calculation range HI
                                        value
000F   15 Bitstring    4 $IPQDSKIP      Count of times that a DASD I/O
                                        request was outprioritized by
                                        another virtual machine's I/O.
              Fields copied from non-IPQBK control blocks
0013   19 Bitstring    1 $IPQCPQH       Source system's SYSIOPQH
0014   20 Bitstring    1 $IPQCPLO       Source system's SYSIOPLO
0015   21 Bitstring    1 $IPQCPHI       Source system's SYSIOPHI
          00000016       $IPQ_LEN       *-$IPQBK Total length, in bytes
          00000003       $IPQ_SZ        ($IPQ_LEN+7)/8 Size in
                                        doublewords

$IPQBK Storage Layout

          
*** $IPQBK - Relocation mapping for HCPIPQBK
*
*     +-------------+-------------+---------------------------+
*   0 | $IPQ_HDRL   | $IPQ_BITL   |///////////////////////////|
*     +------+------+------+------+------+------+------+------+
*   8 |$IPQ0 |:QRQLO|:QRQHI|:QEFLO|:QEFHI|:QQULO|:QQUHI|(00F)-|
*     +------+------+------+------+------+------+------+------+
*  10 |    -$IPQDSKIP      |:QCPQH|:QCPLO|:QCPHI| 16
*     +--------------------+------+------+------+
*
*** $IPQBK - Relocation mapping for HCPIPQBK

$IPQBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
$IPQ_BITL      0002
$IPQ_BITS      0008
$IPQ_BLEN      0008 00000001
$IPQ_DATA      0009
$IPQ_HDLN      0004 00000008
$IPQ_HDRL      0000
$IPQ_LEN       0015 00000016
$IPQ_SZ        0015 00000003
$IPQ_VER       0000 00000001
$IPQABSRG      0008 40
$IPQCPHI       0015
$IPQCPLO       0014
$IPQCPQH       0013
$IPQDSKIP      000F
$IPQEFHI       000C
$IPQEFLO       000B
$IPQGSSC       0008 20
$IPQQUHI       000E
$IPQQULO       000D
$IPQRELRG      0008 80
$IPQRQHI       000A
$IPQRQLO       0009
$IPQ0          0008