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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
DGNBK
Cross Reference (Contains links to field and bit definitions)
DGNBK Prolog
NAME : HCPDGNBK
DESCRIPTION: Diagnose Table Entry Block
STATUS : VM/ESA Version 2, Release 1.0
DSECT : DGNBK
FUNCTION : The Diagnose Table Entry Blocks are used to control and
to locate the modules that are called when a virtual
machine has executed a diagnose instruction.
LOCATED BY : Diagnose radix tree, anchored in the Diagnose Control
Header, which is pointed to by SYSDIAGS in SYSCM.
DGNOVRDE if an MODIFY operation has been done but
no MODIFY RESET has been done.
CREATED BY : HCPDDG as a result of DEFINE DIAGNOSE command or
configuration statement.
HCPHVB assembly during SYSGEN.
HCPHVAAD adds a new DGNBK (created by someone else)
to the DGNBK radix tree
HCPDDGOV as a result of MODIFY processing
DELETED BY : None
REFERENCES : HCPCLASS - Privilege class definitions
The DGNBK begins with storage that is mapped by the
ICRBK DSECT. This storage is followed by the real
DGNBK fields that define and control the diagnose code.
SERIALIZED : Changes to the contents of DGNBKs are typically done
by diagnose A0 and by User Class Restructure, and
under the SYSLCKC4 lock.
DGNBK Control Block Content
DGNBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure DGNBK Diagnose Table Entry Block These fields map the Indirect Call Request Block. These fields must match the analogous fields in the ICRBK. The fields are defined explicitly here in order that BLOCKDEF and BLOCKMAP can correctly describe them. 0000 0 Character 8 DGNEPNAM Name of the entry routine 0008 8 Address 4 DGNADDRL Address of the ICLBK, or 0. MODIFY RESET will need to clear this field to zero. 000C 12 Bitstring 1 DGNATTR Attributes for HCPCALL 000D 13 Bitstring 1 * Reserved 000E 14 Bitstring 1 * Reserved 000F 15 Bitstring 1 * Reserved Thus ends the Indirect Call Request Block fields The user fields should remain at the front of the block 0010 16 Dbl-Word 8 DGNUSRD1 Reserved for non-IBM use 0018 24 Dbl-Word 8 DGNUSRD2 Reserved for non-IBM use 0020 32 Signed 4 DGNUSRF1 Reserved for non-IBM use 0024 36 Signed 4 DGNUSRF2 Reserved for non-IBM use 0028 40 Signed 2 DGNUSRH1 Reserved for non-IBM use 002A 42 Signed 2 DGNUSRH2 Reserved for non-IBM use 002C 44 Bitstring 1 DGNUSRX1 Reserved for non-IBM use 002D 45 Bitstring 1 DGNUSRX2 Reserved for non-IBM use 002E 46 Bitstring 1 DGNUSRX3 Reserved for non-IBM use 002F 47 Bitstring 1 DGNUSRX4 Reserved for non-IBM use 0030 48 Dbl-Word 8 DGNLOCK (3) Lock to control updates to this DGNBK. 0048 72 Character 8 DGNNAME Diagnose name: DIAGxxxx 0050 80 Address 4 DGNADDR Address of routine. If zero, then call DGNEPNAM indirectly 0054 84 Signed 4 DGNCOUNT Diagnose issued this many times 0058 88 Signed 8 * Reserved 0060 96 Address 4 DGNPUSHD Address of pushed DGNBK 0064 100 Address 4 DGNOVRDE For use by MODIFY and OVERRIDE 0068 104 Signed 4 DGNCLASS Diagnose privilege class(es) 006C 108 Signed 4 * Reserved 0070 112 Bitstring 2 DGNCODE Diagnose code in binary 0072 114 Signed 2 * Reserved 0074 116 Bitstring 1 DGNFLAG Diagnose flags 0075 117 Bitstring 1 DGNTCALL Type of call to diag processor 0076 118 Bitstring 1 DGNSECUR Diagnose security flags 0077 119 Bitstring 1 DGNFLAG1 Diag flags - DGNFLAG extended 1... .... DGNINVAR X'80' This diagnose is not allowed in host-Access Register mode EQU X'40' Reserved EQU X'20' Reserved ...1 .... DGNOVRNO X'10' This diagnose may not be overridden by the MODIFY command. EQU X'08' Reserved EQU X'04' Reserved .... ..1. DGNENABL X'02' This diagnose is ENABLED: if off, guest diag should get SPECERR EQU X'01' Reserved 00000078 DGNBSIZE *-DGNBK Size of DGNBK in bytes 0000000F DGNSIZE (*-DGNBK+7)/8 Size in double words 0068 104 Bitstring 1 DGNCLB0 1... .... CLASSA X'80' CLASS A FUNCTIONS .1.. .... CLASSB X'40' CLASS B FUNCTIONS ..1. .... CLASSC X'20' CLASS C FUNCTIONS ...1 .... CLASSD X'10' CLASS D FUNCTIONS .... 1... CLASSE X'08' CLASS E FUNCTIONS .... .1.. CLASSF X'04' CLASS F FUNCTIONS .... ..1. CLASSG X'02' CLASS G FUNCTIONS .... ...1 CLASSH X'01' CLASS H FUNCTIONS 0069 105 Bitstring 1 DGNCLB1 1... .... CLASSI X'80' CLASS I FUNCTIONS .1.. .... CLASSJ X'40' CLASS J FUNCTIONS ..1. .... CLASSK X'20' CLASS K FUNCTIONS ...1 .... CLASSL X'10' CLASS L FUNCTIONS .... 1... CLASSM X'08' CLASS M FUNCTIONS .... .1.. CLASSN X'04' CLASS N FUNCTIONS .... ..1. CLASSO X'02' CLASS O FUNCTIONS .... ...1 CLASSP X'01' CLASS P FUNCTIONS 006A 106 Bitstring 1 DGNCLB2 1... .... CLASSQ X'80' CLASS Q FUNCTIONS .1.. .... CLASSR X'40' CLASS R FUNCTIONS ..1. .... CLASSS X'20' CLASS S FUNCTIONS ...1 .... CLASST X'10' CLASS T FUNCTIONS .... 1... CLASSU X'08' CLASS U FUNCTIONS .... .1.. CLASSV X'04' CLASS V FUNCTIONS .... ..1. CLASSW X'02' CLASS W FUNCTIONS .... ...1 CLASSX X'01' CLASS X FUNCTIONS 006B 107 Bitstring 1 DGNCLB3 1... .... CLASSY X'80' CLASS Y FUNCTIONS .1.. .... CLASSZ X'40' CLASS Z FUNCTIONS ..1. .... CLASS1 X'20' CLASS 1 FUNCTIONS ...1 .... CLASS2 X'10' CLASS 2 FUNCTIONS .... 1... CLASS3 X'08' CLASS 3 FUNCTIONS .... .1.. CLASS4 X'04' CLASS 4 FUNCTIONS .... ..1. CLASS5 X'02' CLASS 5 FUNCTIONS .... ...1 CLASS6 X'01' CLASS 6 FUNCTIONS
DGNBK Storage Layout
*** DGNBK - Diagnose Table Entry Block * * +-------------------------------------------------------+ * 0 | DGNEPNAM | * +---------------------------+------+------+------+------+ * 8 | DGNADDRL |:ATTR |//////|//////|//////| * +---------------------------+------+------+------+------+ * 10 | DGNUSRD1 | * +-------------------------------------------------------+ * 18 | DGNUSRD2 | * +---------------------------+---------------------------+ * 20 | DGNUSRF1 | DGNUSRF2 | * +-------------+-------------+------+------+------+------+ * 28 | DGNUSRH1 | DGNUSRH2 |:USRX1|:USRX2|:USRX3|:USRX4| * +-------------+-------------+------+------+------+------+ * 30 | | * = DGNLOCK = * | | * +-------------------------------------------------------+ * 48 | DGNNAME | * +---------------------------+---------------------------+ * 50 | DGNADDR | DGNCOUNT | * +---------------------------+---------------------------+ * 58 |///////////////////////////////////////////////////////| * +---------------------------+---------------------------+ * 60 | DGNPUSHD | DGNOVRDE | * +---------------------------+---------------------------+ * 68 | DGNCLASS |///////////////////////////| * +-------------+-------------+------+------+------+------+ * 70 | DGNCODE |/////////////|:FLAG |:TCALL|:SECUR|:FLAG1| * +-------------+-------------+------+------+------+------+ * 78 * *** DGNBK - Diagnose Table Entry Block *** Overlay for DGNCLASS in DGNBK * * +------+------+------+------+ * 68 |:CLB0 |:CLB1 |:CLB2 |:CLB3 | 6C * +------+------+------+------+ * *** Overlay for DGNCLASS in DGNBK
DGNBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----CLASSA 0068 80
CLASSB 0068 40
CLASSC 0068 20
CLASSD 0068 10
CLASSE 0068 08
CLASSF 0068 04
CLASSG 0068 02
CLASSH 0068 01
CLASSI 0069 80
CLASSJ 0069 40
CLASSK 0069 20
CLASSL 0069 10
CLASSM 0069 08
CLASSN 0069 04
CLASSO 0069 02
CLASSP 0069 01
CLASSQ 006A 80
CLASSR 006A 40
CLASSS 006A 20
CLASST 006A 10
CLASSU 006A 08
CLASSV 006A 04
CLASSW 006A 02
CLASSX 006A 01
CLASSY 006B 80
CLASSZ 006B 40
CLASS1 006B 20
CLASS2 006B 10
CLASS3 006B 08
CLASS4 006B 04
CLASS5 006B 02
CLASS6 006B 01
DGNADDR 0050
DGNADDRL 0008
DGNATTR 000C
DGNBSIZE 0077 00000078
DGNCLASS 0068
DGNCLB0 0068
DGNCLB1 0069
DGNCLB2 006A
DGNCLB3 006B
DGNCODE 0070
DGNCOUNT 0054
DGNENABL 0077 02
DGNEPNAM 0000
DGNFLAG 0074
DGNFLAG1 0077
DGNINVAR 0077 80
DGNLOCK 0030
DGNNAME 0048
DGNOVRDE 0064
DGNOVRNO 0077 10
DGNPUSHD 0060
DGNSECUR 0076
DGNSIZE 0077 0000000F
DGNTCALL 0075
DGNUSRD1 0010
DGNUSRD2 0018
DGNUSRF1 0020
DGNUSRF2 0024
DGNUSRH1 0028
DGNUSRH2 002A
DGNUSRX1 002C
DGNUSRX2 002D
DGNUSRX3 002E
DGNUSRX4 002F
Last updated on 3 Aug 1999 at 11:51:15 EDT.
Copyright IBM Corporation, 1990, 1999