$PXIBK

Prolog  

Control Block Contents  
   $PXIBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

$PXIBK Prolog

 NAME       : LGRPXIBK
 DESCRIPTION: Relocation mapping for HCPPXIBK
 DSECT      : $PXIBK
 FUNCTION   : LGRPXIBK describes those fields of the PXIBK 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.
 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 HCPPXIBK 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.

$PXIBK Control Block Content

$PXIBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      $PXIBK         Relocation mapping for HCPPXIBK
          00000001       $PXI_VER       1 Mapping version number
0000    0 Signed       2 $PXI_HDRL      Header length (in bytes)
0002    2 Signed       2 $PXI_BITL      Length of mapped bits (in bytes)
0004    4 Signed       2 *              Reserved for future use
0006    6 Bitstring    1 $PXI_FLGS      General flag byte
          1... ....      $PXI_SHAR      X'80' $PXI_SHAR Guest using
                                        shared creation PXIBK
0007    7 Bitstring    1 *              Reserved for future use
          00000008       $PXI_HDLN      *-$PXIBK Length of header (bytes)
      Bit map: Contains the PXIBK flags that are subject to
               relocation. These bits are defined sequentially,
               regardless of how they are defined in HCPPXIBK.
               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 $PXI_BITS (0)  Bit map area
0008    8 Bitstring    1 $PXI0
          1... ....      $PXICREAT      X'80' $PXICREAT PXIFLAG
          .1.. ....      $PXIWPSG       X'40' $PXIWPSG PXIFLAG
          00000001       $PXI_BLEN      *-$PXI_BITS Length of bit map
                                        area
      Data:    Contains all HCPPXIBK 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.
0009    9 Bitstring    1 $PXI_DATA (0)  Start of data map
      These fields are present only when $PXI_SHAR = 0
0009    9 Bitstring    4 $PXIPSGBK      -> RDO offset to PSGBK
000D   13 Bitstring    4 $PXI_PSGC      PSGCOUNT from PSGBK
0011   17 Bitstring   12 $PXIUIDS       All UIDs
001D   29 Bitstring   12 $PXIGIDS       All GIDs
          00000029       $PXI_LEN       *-$PXIBK Total length, in bytes
          00000006       $PXI_SZ        ($PXI_LEN+7)/8 Size in
                                        doublewords

$PXIBK Storage Layout

          
*** $PXIBK - Relocation mapping for HCPPXIBK
*
*     +-------------+-------------+-------------+------+------+
*   0 | $PXI_HDRL   | $PXI_BITL   |/////////////|(006) |//////|
*     +------+------+-------------+------+------+------+------+
*   8 |$PXI0 |        $PXIPSGBK          |    $PXI_PSGC-      |
*     +------+---------------------------+--------------------+
*  10 |-(00D)|                   $PXIUIDS                     |
*     +------+                           +--------------------+
*  18 |                                  |                    |
*     +----------------------------------+                    |
*     |                       $PXIGIDS                        |
*     |      +------------------------------------------------+
*     |      | 29
*     +------+
*
*** $PXIBK - Relocation mapping for HCPPXIBK

$PXIBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
$PXI_BITL      0002
$PXI_BITS      0008
$PXI_BLEN      0008 00000001
$PXI_DATA      0009
$PXI_FLGS      0006
$PXI_HDLN      0007 00000008
$PXI_HDRL      0000
$PXI_LEN       001D 00000029
$PXI_PSGC      000D
$PXI_SHAR      0006 80
$PXI_SZ        001D 00000006
$PXI_VER       0000 00000001
$PXICREAT      0008 80
$PXIGIDS       001D
$PXIPSGBK      0009
$PXIUIDS       0011
$PXIWPSG       0008 40
$PXI0          0008