$FINBK | Back to Index page

| Prolog Control Block Contents $FINBK 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.

$FINBK Prolog | Top of page

     NAME       : LGRFINBK
     DESCRIPTION: Relocation mapping for HCPFINBK
     DSECT      : $FINBK
     FUNCTION   : LGRFINBK describes those fields of the FINBK 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 HCPFINBK 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.

$FINBK Control Block Content | Top of page

     $FINBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      $FINBK         Relocation mapping for HCPFINBK
              00000001       $FIN_VER       1 Mapping version number
    0000    0 Signed       2 $FIN_HDRL      Header length (in bytes)
    0002    2 Signed       2 $FIN_BITL      Length of mapped bits (in bytes)
    0004    4 Signed       4 *              Reserved for future use
              00000008       $FIN_HDLN      *-$FINBK Length of header (bytes)
          Bit map: Contains the FINBK flags that are subject to
                   relocation. These bits are defined sequentially,
                   regardless of how they are defined in HCPFINBK.
                   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 $FIN_BITS (0)  Bit map area
    0008    8 Bitstring    1 $FIN0
              1... ....      $FINFPIUC      X'80' $FINFPIUC FINFIUCV
              .1.. ....      $FINFPVMC      X'40' $FINFPVMC FINFVMCF
              00000001       $FIN_BLEN      *-$FIN_BITS Length of bit map
                                            area
          Data:    Contains all HCPFINBK 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 $FIN_DATA (0)  Start of data map
    0009    9 Bitstring    4 $FINSFXQ       -> RDO offset to $SFXBK
    000D   13 Bitstring    4 $FINPCRBZ      VMDBK of vCPU using processor
                                            controller
              00000011       $FIN_LEN       *-$FINBK Total length, in bytes
              00000003       $FIN_SZ        ($FIN_LEN+7)/8 Size in
                                            doublewords

$FINBK Storage Layout | Top of page

    *** $FINBK - Relocation mapping for HCPFINBK
    *
    *     +-------------+-------------+---------------------------+
    *   0 | $FIN_HDRL   | $FIN_BITL   |///////////////////////////|
    *     +------+------+-------------+------+--------------------+
    *   8 |$FIN0 |         $FINSFXQ          |    $FINPCRBZ-      |
    *     +------+---------------------------+--------------------+
    *  10 |-(00D)| 11
    *     +------+
    *
    *** $FINBK - Relocation mapping for HCPFINBK

$FINBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    $FIN_BITL      0002
    $FIN_BITS      0008
    $FIN_BLEN      0008 00000001
    $FIN_DATA      0009
    $FIN_HDLN      0004 00000008
    $FIN_HDRL      0000
    $FIN_LEN       000D 00000011
    $FIN_SZ        000D 00000003
    $FIN_VER       0000 00000001
    $FINFPIUC      0008 80
    $FINFPVMC      0008 40
    $FINPCRBZ      000D
    $FINSFXQ       0009
    $FIN0          0008

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:32:04 EDT.
Copyright IBM Corporation, 1990, 2020