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


  $PDEBK Prolog Top of page
 
 NAME       : LGRPDEBK
 DESCRIPTION: Relocation mapping for HCPPDEBK
 DSECT      : $PDEBK
 FUNCTION   : LGRPDEBK describes those fields of the PDEBK 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 HCPPDEBK 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.
 
 
  $PDEBK Control Block Content Top of page
 

 $PDEBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure $PDEBK Relocation mapping for HCPPDEBK 00000001 $PDE_VER 1 Mapping version number 0000 0 Signed 2 $PDE_HDRL Header length (in bytes) 0002 2 Signed 2 $PDE_BITL Length of mapped bits (in bytes) 0004 4 Signed 4 * Reserved for future use 00000008 $PDE_HDLN *-$PDEBK Length of header (bytes) Bit map: Contains the PDEBK flags that are subject to relocation. These bits are defined sequentially, regardless of how they are defined in HCPPDEBK. 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 $PDE_BITS (0) Bit map area 0008 8 Bitstring 1 $PDE0 1... .... $PDEVALID X'80' $PDEVALID PDEFLAGS .1.. .... $PDESEND X'40' $PDESEND PDEFLAGS ..1. .... $PDEPRTY X'20' $PDEPRTY PDEFLAGS ...1 .... $PDEPRMD X'10' $PDEPRMD PDEFLAGS .... 1... $PDEPHELD X'08' $PDEPHELD PDEFLAGS .... .1.. $PDECNTRL X'04' $PDECNTRL PDEFLAGS .... ..1. $PDEPEND1 X'02' $PDEPEND1 PDEFLAGS .... ...1 $PDEPEND2 X'01' $PDEPEND2 PDEFLAGS 00000001 $PDE_BLEN *-$PDE_BITS Length of bit map area Data: Contains all HCPPDEBK 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 $PDE_DATA (0) Start of data map 0009 9 Bitstring 4 $PDE_NEXT -> RDO offset to next $PDEBK 000D 13 Bitstring 2 $PDE_PID Pathid for this PDEBK 000F 15 Bitstring 1 $PDE_SSC Target system service code 0010 16 Bitstring 2 $PDEMSGCT #OUTSTANDING MSGS ON PATH 0012 18 Bitstring 2 $PDELRECL LENGTH REMAINING IN LOGICAL RECORD 0014 20 Bitstring 4 $PDESADDR STATE RELATED ADDRESS 0018 24 Bitstring 2 $PDEMSGLM MESSAGE LIMIT 001A 26 Bitstring 1 $PDESAVST PREVIOUS STATE OF PATH 0000001B $PDE_LEN *-$PDEBK Total length, in bytes 00000004 $PDE_SZ ($PDE_LEN+7)/8 Size in doublewords
 
 
  $PDEBK Storage Layout Top of page
 
 
*** $PDEBK - Relocation mapping for HCPPDEBK
*
*     +-------------+-------------+---------------------------+
*   0 | $PDE_HDRL   | $PDE_BITL   |///////////////////////////|
*     +------+------+-------------+------+-------------+------+
*   8 |$PDE0 |        $PDE_NEXT          |  $PDE_PID   |:E_SSC|
*     +------+------+-------------+------+-------------+------+
*  10 | $PDEMSGCT   | $PDELRECL   |        $PDESADDR          |
*     +-------------+------+------+---------------------------+
*  18 | $PDEMSGLM   |(01A) | 1B
*     +-------------+------+
*
*** $PDEBK - Relocation mapping for HCPPDEBK
 
 
  $PDEBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
$PDE_BITL      0002
$PDE_BITS      0008
$PDE_BLEN      0008 00000001
$PDE_DATA      0009
$PDE_HDLN      0004 00000008
$PDE_HDRL      0000
$PDE_LEN       001A 0000001B
$PDE_NEXT      0009
$PDE_PID       000D
$PDE_SSC       000F
$PDE_SZ        001A 00000004
$PDE_VER       0000 00000001
$PDECNTRL      0008 04
$PDELRECL      0012
$PDEMSGCT      0010
$PDEMSGLM      0018
$PDEPEND1      0008 02
$PDEPEND2      0008 01
$PDEPHELD      0008 08
$PDEPRMD       0008 10
$PDEPRTY       0008 20
$PDESADDR      0014
$PDESAVST      001A
$PDESEND       0008 40
$PDEVALID      0008 80
$PDE0          0008
 
This information is based on z/VM 6.4.0 Last updated on 24 Aug 2016 at 09:46:04 EDT.
Copyright IBM Corporation, 1990, 2016