$SSHBK

Prolog  

Control Block Contents  
   $SSHBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

$SSHBK Prolog

 NAME       : LGRSSHBK
 DESCRIPTION: Relocation mapping for the SSHBK array
              members of HCPSSHBK
 DSECT      : $SSHBK
 FUNCTION   : LGRSSHBK describes those fields of the SSHBK 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 HCPSSHBK 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.

$SSHBK Control Block Content

$SSHBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      $SSHBK         Relocation mapping for the SSHBK array
          00000001       $SSH_VER       1 Mapping version number
0000    0 Signed       2 $SSH_HDRL      Header length (in bytes)
0002    2 Signed       2 $SSH_BITL      Length of mapped bits (in bytes)
0004    4 Signed       2 *              Reserved for future use
0006    6 Signed       2 $SSH_PUC       Processor type for this RDO
          00000008       $SSH_HDLN      *-$SSHBK Length of header (bytes)
      Bit map: Contains the SSHBK flags that are subject to
               relocation. These bits are defined sequentially,
               regardless of how they are defined in HCPSSHBK.
               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 $SSH_BITS (0)  Bit map area
0008    8 Bitstring    1 $SSH0
          1... ....      $SSHLIMH       X'80' $SSHLIMH SSHFLG1
          .1.. ....      $SSHNMSHA      X'40' $SSHNMSHA SSHFLG1
          ..1. ....      $SSHMXSHA      X'20' $SSHMXSHA SSHFLG1
          ...1 ....      $SSHVINV       X'10' $SSHVINV SSHFLG2
          00000001       $SSH_BLEN      *-$SSH_BITS Length of bit map
                                        area
      Data:    Contains all HCPSSHBK 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 $SSH_DATA (0)  Start of data map
0009    9 Bitstring    4 $SSHNEXT       -> RDO offset to next $SSHBK
000D   13 Bitstring    4 $SSHRELSH      Rel share setting for this CPU
                                        type
0011   17 Bitstring    4 $SSHABSSH      Abs share setting for this CPU
                                        type
0015   21 Bitstring    4 $SSHMXSHR      Max share setting for this CPU
                                        type
          00000019       $SSH_LEN       *-$SSHBK Total length, in bytes
          00000004       $SSH_SZ        ($SSH_LEN+7)/8 Size in
                                        doublewords

$SSHBK Storage Layout

          
*** $SSHBK - Relocation mapping for the SSHBK array
*
*     +-------------+-------------+-------------+-------------+
*   0 | $SSH_HDRL   | $SSH_BITL   |/////////////|  $SSH_PUC   |
*     +------+------+-------------+------+------+-------------+
*   8 |$SSH0 |         $SSHNEXT          |    $SSHRELSH-      |
*     +------+---------------------------+--------------------+
*  10 |-(00D)|        $SSHABSSH          |    $SSHMXSHR-      |
*     +------+---------------------------+--------------------+
*  18 |-(015)| 19
*     +------+
*
*** $SSHBK - Relocation mapping for the SSHBK array

$SSHBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
$SSH_BITL      0002
$SSH_BITS      0008
$SSH_BLEN      0008 00000001
$SSH_DATA      0009
$SSH_HDLN      0006 00000008
$SSH_HDRL      0000
$SSH_LEN       0015 00000019
$SSH_PUC       0006
$SSH_SZ        0015 00000004
$SSH_VER       0000 00000001
$SSHABSSH      0011
$SSHLIMH       0008 80
$SSHMXSHA      0008 20
$SSHMXSHR      0015
$SSHNEXT       0009
$SSHNMSHA      0008 40
$SSHRELSH      000D
$SSHVINV       0008 10
$SSH0          0008