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


  $SIEBK Prolog Top of page
 
 NAME       : LGRSIEBK
 DESCRIPTION: Relocation mapping for HCPSIEBK
 DSECT      : $SIEBK
 FUNCTION   : LGRSIEBK describes those fields of the SIEBK 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 HCPSIEBK 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.
 
 
  $SIEBK Control Block Content Top of page
 

 $SIEBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure $SIEBK Relocation mapping for HCPSIEBK 00000002 $SIE_VER 2 Mapping version number 0000 0 Signed 2 $SIE_HDRL Header length (in bytes) 0002 2 Signed 2 $SIE_BITL Length of mapped bits (in bytes) 0004 4 Signed 4 * Reserved for future use 00000008 $SIE_HDLN *-$SIEBK Length of header (bytes) Bit map: Contains the SIEBK flags that are subject to relocation. These bits are defined sequentially, regardless of how they are defined in HCPSIEBK. 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 $SIE_BITS (0) Bit map area 0008 8 Bitstring 1 $SIE0 1... .... $SIEESAME X'80' $SIEESAME SIEMODEX Notes : Although SIEXA is no longer defined in SIEBK, it is possible that we will relocate to a system where it is still needed (CP continued to use the bit for its own purposes long after it had become obsolete in the architecture). Thus, we will leave the definition in place here for use by HCPRLG. .1.. .... $SIEXA X'40' $SIEXA SIEMODE ..1. .... $SIEECMVP X'20' $SIEECMVP SIEECA0 ...1 .... $SIEECVEC X'10' $SIEECVEC SIEECA1 do not reuse this bit.) 00000001 $SIE_BLEN *-$SIE_BITS Length of bit map area Data: Contains all HCPSIEBK 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 $SIE_DATA (0) Start of data map 0009 9 Bitstring 4 $SIEPREFX Guest prefix register value 000D 13 Bitstring 8 $SIECPUTM Guest CPU timer value 0015 21 Bitstring 8 $SIECKC Guest clock comparator value 001D 29 Bitstring 8 $SIEEPOCH Guest time-of-day epoch 0025 37 Bitstring 2 $SIEICPUA Virtual CPU address (bits 10-15) 0027 39 Bitstring 1 $SIEICODE Interception event code 0028 40 Bitstring 4 $SIETODPR TOD programmable register 002C 44 Bitstring 8 $SIEGMSLM Guest real main storage limit 0034 52 Bitstring 16 $SIEGPSW Guest PSW (31-bit and 64-bit) 0044 68 Bitstring 52 $SIEUZP0 Guest prefix page values 0078 120 Bitstring 128 $SIEGCRS Guest control registers 0-15 00F8 248 Bitstring 8 $SIEBEAR Breaking-event-address register 0100 256 Bitstring 1 $SIEIBM5 CPNC 00000101 $SIE_LEN *-$SIEBK Total length, in bytes 00000021 $SIE_SZ ($SIE_LEN+7)/8 Size in doublewords
 
 
  $SIEBK Storage Layout Top of page
 
          
*** $SIEBK - Relocation mapping for HCPSIEBK
*
*     +-------------+-------------+---------------------------+
*   0 | $SIE_HDRL   | $SIE_BITL   |///////////////////////////|
*     +------+------+-------------+------+--------------------+
*   8 |$SIE0 |        $SIEPREFX          |      (00D)-        |
*     +------+---------------------------+--------------------+
*  10 |           -$SIECPUTM             |      (015)-        |
*     +----------------------------------+--------------------+
*  18 |            -$SIECKC              |      (01D)-        |
*     +----------------------------------+-------------+------+
*  20 |           -$SIEEPOCH             | $SIEICPUA   |(027) |
*     +---------------------------+------+-------------+------+
*  28 |        $SIETODPR          |        $SIEGMSLM-         |
*     +---------------------------+---------------------------+
*  30 |          -(02C)           |                           |
*     +---------------------------+                           |
*     |                       $SIEGPSW                        |
*     |                           +---------------------------+
*     |                           |                           |
*     +---------------------------+                           |
*  48 |                                                       |
*     =                       $SIEUZP0                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  78 |                                                       |
*     =                       $SIEGCRS                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  F8 |                       $SIEBEAR                        |
*     +------+------------------------------------------------+
* 100 |:EIBM5| 101
*     +------+
*
*** $SIEBK - Relocation mapping for HCPSIEBK
 
 
  $SIEBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
$SIE_BITL      0002
$SIE_BITS      0008
$SIE_BLEN      0008 00000001
$SIE_DATA      0009
$SIE_HDLN      0004 00000008
$SIE_HDRL      0000
$SIE_LEN       0100 00000101
$SIE_SZ        0100 00000021
$SIE_VER       0000 00000002
$SIEBEAR       00F8
$SIECKC        0015
$SIECPUTM      000D
$SIEECMVP      0008 20
$SIEECVEC      0008 10
$SIEEPOCH      001D
$SIEESAME      0008 80
$SIEGCRS       0078
$SIEGMSLM      002C
$SIEGPSW       0034
$SIEIBM5       0100
$SIEICODE      0027
$SIEICPUA      0025
$SIEPREFX      0009
$SIETODPR      0028
$SIEUZP0       0044
$SIEXA         0008 40
$SIE0          0008
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:58:55 EDT.
Copyright IBM Corporation, 1990, 2022