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


  $PXIBK Prolog Top of page
 
 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 Top of page
 

 $PXIBK DSECT Top of page
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 Top of page
 
 
*** $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 Top of page
 
 
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
 
This information is based on z/VM 6.4.0 Last updated on 24 Aug 2016 at 09:46:08 EDT.
Copyright IBM Corporation, 1990, 2016