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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
WDATA
Control Block Contents
WDATA DSECT
Cross Reference (Contains links to field and bit definitions)
WDATA Prolog
Name : HCPWDATA
Description: VSIM common DAta area mapping
DSECT : WDATA
Function : This copy file contains a DSECT used to map (and
define) the VSIM common data area.
Located by : HCPVSDWS is the external symbol which identifies the
beginning of the data area which is mapped
by this DSECT.
Created by : HCPWLBBN during system initialization.
Deleted by : Not deleted.
Notes : When this DSECT is COPYed into the HCPWDA module, it
generates actual code instead of a DSECT. This permits
the definitions of these fields to be centralized here.
WDATA Control Block Content
WDATA DSECT
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure WDATA VSIM common DAta area mapping
Define HCPWDATA control block.
0000 0 Signed 4 WDANADSO Null ALDSO. This access-list-
designation-source origin
indicates an
access-list-designation source
(it can be considered to be a
PASTE or a DUCT) which contains
the null ALD.
0004 4 Signed 4 WDANASTE Null ASTEO. This
ASN-second-table- entry origin
indicates an ASTE which contains
the null STD, the null ATO, and
the null ATL.
0008 8 Signed 4 WDANALD Null ALD. This access-list
designation indicates an small
access list containing all
invalid access-list entries.
000C 12 Signed 4 WDANATO Null ATO. This authority-table
origin indicates a small
authority table, and every entry
has a zero secondary-authority
bit. The ATO in this field is
aligned as it would be in the
word that contains the ATO in an
ASTE.
0010 16 Signed 2 WDANATL Null ATL. This authority-table
length is the length of the
authority table indicated by
WDANATO. The ATL in this field is
aligned as it would be in the
halfword that contains the ATL in
an ASTE.
0012 18 Signed 2 * Reserved for IBM use
0014 20 Signed 4 * Reserved for IBM use
0018 24 Signed 8 WDANASCC Null ASCE for control registers.
This segment-table designation
indicates a small segment table
containing all invalid entries.
0020 32 Signed 8 WDANASCA Null ASCE for ASTEs. This
segment- table designation
indicates a small segment table
containing all invalid entries.
This ASCE is not equal to the
ASCE in WDANASCC, but the STO is
equal to the STO in WDANASCC (the
STL is different).
STFLE response pointers
These pointers will contain host logical and host real
addresses for each of three instances of guest STFLE
responses.
The order of these arrays match the order of index values
assigned to VMDSTFNX which is used to index these arrays.
0028 40 Signed 4 WDANFLL (0) Array of host logical addresses
of guest STFLE responses
0028 40 Signed 4 WDANFL3L Host logical address of STFLE
response for 390 guest (non-XC)
002C 44 Signed 4 WDANFLZL Host logical address of STFLE
response for z/Arch guest
(non-XC)
0030 48 Signed 4 WDANFLXL Host logical address of STFLE
response for XC guest
0034 52 Signed 4 WDANFLR (0) Array of host real addresses of
guest STFLE responses
0034 52 Signed 4 WDANFL3R Host real address of STFLE
response for 390 guest (non-XC)
0038 56 Signed 4 WDANFLZR Host real address of STFLE
response for z/Arch guest
(non-XC)
003C 60 Signed 4 WDANFLXR Host real address of STFLE
response for XC guest
0040 64 Signed 2 WDANFLS Size of storage obtained for 3
copies of guest STFLE responses
in DWs
0042 66 Signed 2 * Reserved for IBM use
0044 68 Signed 4 * Reserved for IBM use
WDATA Storage Layout
*** WDATA - VSIM common DAta area mapping
*
* +---------------------------+---------------------------+
* 0 | WDANADSO | WDANASTE |
* +---------------------------+---------------------------+
* 8 | WDANALD | WDANATO |
* +-------------+-------------+---------------------------+
* 10 | WDANATL |/////////////|///////////////////////////|
* +-------------+-------------+---------------------------+
* 18 | WDANASCC |
* +-------------------------------------------------------+
* 20 | WDANASCA |
* +---------------------------+---------------------------+
* 28 | WDANFL3L | WDANFLZL |
* +---------------------------+---------------------------+
* 30 | WDANFLXL | WDANFL3R |
* +---------------------------+---------------------------+
* 38 | WDANFLZR | WDANFLXR |
* +-------------+-------------+---------------------------+
* 40 | WDANFLS |/////////////|///////////////////////////|
* +-------------+-------------+---------------------------+
* 48
*
*** WDATA - VSIM common DAta area mapping
WDATA Cross Reference
Symbol Dspl Value -------------- ---- ----- WDANADSO 0000 WDANALD 0008 WDANASCA 0020 WDANASCC 0018 WDANASTE 0004 WDANATL 0010 WDANATO 000C WDANFLL 0028 WDANFLR 0034 WDANFLS 0040 WDANFLXL 0030 WDANFLXR 003C WDANFLZL 002C WDANFLZR 0038 WDANFL3L 0028 WDANFL3R 0034
Copyright IBM Corporation, 1990, 2007