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Prolog 
Control Block Contents 
   MITREC 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.


  MITREC Prolog Top of page
 
 NAME       : MITREC
 DESCRIPTION: 370/XA MODE MISSING INTERRUPT RECORD
 DSECT      : MITREC
 FUNCTION   : MITREC IS USED IN THE SVC 76 INITIATED ERROR
              RECORDING PROCESS OF TYPE 71 MIH (MISSING
              INTERRUPT HANDLER) RECORDS FOR XA GUESTS.
 LOCATED BY : GPR9 IN HCPVER.  THE ADDRESS IS PASSED TO
              HCPIOE AND HCPREC IN GPR1.
 CREATED BY : XA GUEST; COPIED TO FREE STORAGE BY HCPVER.
 DELETED BY : HCPIOE AFTER HCPREC HAS COPIED IT INTO
              A GSDBK.
 RELOCATION CONSIDERATIONS : None
 
 
  MITREC Control Block Content Top of page
 

 MITREC DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MITREC 370/XA MODE MISSING INTERRUPT RECORD THIS CONTROL BLOCK IS AN INTER-OPERATING-SYSTEM BLOCK WHICH IS DEFINED BY IBM CORPORATE STANDARDS. THEREFORE VM/XA DOES NOT CONTROL THE DEFINITIONS NOR DOES IT NECESSARILY USE ALL THE FIELDS DEFINED OR ALL THE BITS DEFINED WITHIN A FIELD. 0000 0 Bitstring 1 MITHTYPE CLASS/SOURCE 00000071 MITRTYMI 113 MITRTYMI MIT RECORD TYPE-MISSING INTERRUPT 0001 1 Bitstring 1 MITSYS SYSTEM/RELEASE LEVEL 111. .... HDRHSSYS X'E0' HDRHSSYS SYSTEM MASK 1... .... HDRHSOS2 X'80' HDRHSOS2 OS/VS2 .11. .... HDRHSVM X'60' HDRHSVM VM .1.. .... HDRHSOS1 X'40' HDRHSOS1 OS/VS1 ..1. .... HDRHSDOS X'20' HDRHSDOS DOS ...1 1111 HDRHSLVL X'1F' HDRHSLVL SYSTEM LEVEL MASK (INCLUDES VERSION AND RELEASE LEVEL) ...1 11.. HDRHSVRS X'1C' HDRHSVRS VERSION NUMBER MASK .... ..11 HDRHSREL X'03' HDRHSREL RELEASE LEVEL MASK 0002 2 Bitstring 1 MITSW0 RECORD INDEPENDENT SWITCHES 1... .... HDRHSWMR X'80' HDRHSWMR MORE RECORDS FOLLOW .1.. .... HDRHSWCI X'40' HDRHSWCI TOD CLOCK INSTRUCTION ISSUED ..1. .... HDRHSWRT X'20' HDRHSWRT RECORD TRUNCATED ...1 .... HDRHSWPK X'10' HDRHSWPK 370/XA MODE .... 1... HDRHSWTI X'08' HDRHSWTI TIME MACRO ISSUED .... .1.. HDRHSWPS X'04' HDRHSWPS ERROR WAS PASSED (REFLECTED) TO A GUEST 0003 3 Bitstring 1 MITSW1 RESERVED REC DEPENDENT SWITCH 1 0004 4 Bitstring 1 MITSW2 RESERVED REC DEPENDENT SWITCH 2 0005 5 Bitstring 1 MITSW3 RESERVED REC DEPENDENT SWITCH 3 0006 6 Bitstring 1 MITCNT RECORD COUNT 1111 .... HDRRCSEQ X'F0' HDRRCSEQ RECORD SEQUENCE NUMBER MASK .... 1111 HDRRCPHY X'0F' HDRRCPHY TOTAL NUM. OF PHYSICAL RECORDS IN LOGICAL RECORD BIT MASK 0007 7 Bitstring 1 * RESERVED FOR FUTURE IBM USE 0008 8 Dbl-Word 8 MITTOD TOD OF SYSTEM FAILURE 0010 16 Dbl-Word 8 MITCPUID CPU ID 0018 24 Character 8 MITJOBN JOBNAME FROM ASID OR USERID 0020 32 Character 52 MITSCHIB SUBCHANNEL INFORMATION BLOCK 0054 84 Bitstring 8 MITINTVL INTERVAL USED FOR DETECTION 005C 92 Bitstring 1 MITTYPE TYPE OF MISSING INTERRUPT 1... .... MITTMCSI X'80' MITTMCSI MISSING CSCH INTERRUPT .1.. .... MITTMHCI X'40' MITTMHCI MISSING HSCH INTERRUPT ..1. .... MITTIDDV X'20' MITTIDDV IDLE DEVICE WITH WORK QUEUED ...1 .... MITTSPSC X'10' MITTSPSC START PENDING IN SUBCHANNEL .... .1.. MITTMP X'04' MITTMP MOUNT PENDING .... ..1. MITTMPS X'02' MITTMPS MISSING PRIMARY STATUS .... ...1 MITTMSS X'01' MITTMSS MISSING SECONDARY STATUS 005D 93 Bitstring 1 MITDEFLT DEFAULT ACTIONS TO ATTEMPT 005E 94 Bitstring 1 MITATMPT ACTIONS TO BE ATTEMPTED 005F 95 Bitstring 1 MITTRIED ACTION ACTUALLY TRIED 1... .... MITTRHCS X'80' MITTRHCS HALT OR CLEAR SUBCHANNEL .1.. .... MITTRSIN X'40' MITTRSIN SIMULATED INTERRUPT ..1. .... MITTRRDD X'20' MITTRRDD REDRIVE DEVICE ...1 .... MITTRRIO X'10' MITTRRIO REQUEUE I/O REQUEST .... 1... MITTRIM X'08' MITTRIM ISSUE MESSAGE .... .1.. MITTRLC X'04' MITTRLC LOG THE CONDITION 0060 96 Signed 4 MITSID SUBCHANNEL ID NUMBER 0064 100 Signed 2 MITPMCW PATH MNGMENT CTRL WORD 0066 102 Bitstring 1 MITLPM LOGICAL PATH MASK 0067 103 Bitstring 1 MITLPUM LAST PATH USED MASK 0068 104 Bitstring 1 MITPIM PATH INSTALL MASK 0069 105 Bitstring 1 MITCHID (8) CHANNEL PATH ID 0071 113 Bitstring 1 MITUCBLV UCB LEVEL BYTE (NOT USED BY VM) 0072 114 Bitstring 1 MITIOSFG IOS FLAGS (NOT USED BY VM) 0073 115 Bitstring 4 MITLVMSK LEVEL MASK FROM UCBLVMSK (NOT USED BY VM) 0077 119 Bitstring 1 MITFLAGS MIT FLAG PROC. (UCBMITTI) (NOT USED BY VM) 0078 120 Bitstring 1 MITFLAG1 FLAG BYTE (NOT USED BY VM) 1... .... MITF1UCB X'80' MITF1UCB UCBALTCU 0079 121 Bitstring 1 MITFLAG2 FLAG BYTE FROM UCBFLC (NOT USED BY VM) 007A 122 Bitstring 2 MITUCHAN DEVICE NUMBER 007C 124 Bitstring 2 MITFLAG3 FLAG BYTES FROM UCBSFLS (NOT USED BY VM) 007E 126 Bitstring 4 MITDEVTY DEVICE CLASS AND TYPE 0082 130 Character 6 MITVOLUM VOLUME SERIAL, IF AVAILABLE 0088 136 Bitstring 1 MITFLAG4 FLAG BYTE (NOT USED BY VM) 1... .... MITF4UCB X'80' MITF4UCB UCBMOUNT 0089 137 Bitstring 1 MITFLAG5 FLAG BYTE FROM UCBFL4 (NOT USED BY VM) 0000008A MITLEN *-MITREC LENGTH OF MITREC 00000012 MITSIZE (*-MITREC+7)/8 NUMBER OF WORDS IN MITREC 0008 8 Signed 4 MITDATE SYSTEM DATE OF FAILURE 000C 12 Signed 4 MITTIME SYSTEM TIME OF FAILURE 0010 16 Bitstring 1 MITCPID MACHINE VERSION CODE 0011 17 Bitstring 3 MITSER CPU SERIAL NUMBER 0014 20 Bitstring 2 MITMDL CPU MACHINE MODEL NUMBER 0016 22 Bitstring 2 MITMCEL RESERVED FOR FUTURE IBM USE
 
 
  MITREC Storage Layout Top of page
 
          
*** MITREC - 370/XA MODE MISSING INTERRUPT RECORD
*
*     +------+------+------+------+------+------+------+------+
*   0 |:HTYPE|MITSYS|MITSW0|MITSW1|MITSW2|MITSW3|MITCNT|//////|
*     +------+------+------+------+------+------+------+------+
*   8 |                        MITTOD                         |
*     +-------------------------------------------------------+
*  10 |                       MITCPUID                        |
*     +-------------------------------------------------------+
*  18 |                       MITJOBN                         |
*     +-------------------------------------------------------+
*  20 |                                                       |
*     =                       MITSCHIB                        =
*     |                           +---------------------------+
*     |                           |        MITINTVL-          |
*     +---------------------------+------+------+------+------+
*  58 |          -(054)           |:TYPE |:DEFLT|:ATMPT|:TRIED|
*     +---------------------------+------+------+------+------+
*  60 |          MITSID           |  MITPMCW    |MITLPM|:LPUM |
*     +------+--------------------+-------------+------+------+
*  68 |MITPIM|                   MITCHID-                     |
*     +------+------+------+---------------------------+------+
*  70 |-(069)|:UCBLV|:IOSFG|         MITLVMSK          |:FLAGS|
*     +------+------+------+------+-------------+------+------+
*  78 |:FLAG1|:FLAG2|  MITUCHAN   |  MITFLAG3   | MITDEVTY-   |
*     +------+------+-------------+-------------+-------------+
*  80 |   -(07E)    |                MITVOLUM                 |
*     +------+------+-----------------------------------------+
*  88 |:FLAG4|:FLAG5| 8A
*     +------+------+
*
*** MITREC - 370/XA MODE MISSING INTERRUPT RECORD
          
*** Overlay for MITTOD in MITREC
*
*     +---------------------------+---------------------------+
*   8 |         MITDATE           |         MITTIME           |
*     +---------------------------+---------------------------+
*  10
*
*** Overlay for MITTOD in MITREC
          
*** Overlay for MITCPUID in MITREC
*
*     +------+--------------------+-------------+-------------+
*  10 |:CPID |      MITSER        |   MITMDL    |  MITMCEL    |
*     +------+--------------------+-------------+-------------+
*  18
*
*** Overlay for MITCPUID in MITREC
 
 
  MITREC Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
HDRHSDOS       0001 20
HDRHSLVL       0001 1F
HDRHSOS1       0001 40
HDRHSOS2       0001 80
HDRHSREL       0001 03
HDRHSSYS       0001 E0
HDRHSVM        0001 60
HDRHSVRS       0001 1C
HDRHSWCI       0002 40
HDRHSWMR       0002 80
HDRHSWPK       0002 10
HDRHSWPS       0002 04
HDRHSWRT       0002 20
HDRHSWTI       0002 08
HDRRCPHY       0006 0F
HDRRCSEQ       0006 F0
MITATMPT       005E
MITCHID        0069
MITCNT         0006
MITCPID        0010
MITCPUID       0010
MITDATE        0008
MITDEFLT       005D
MITDEVTY       007E
MITFLAGS       0077
MITFLAG1       0078
MITFLAG2       0079
MITFLAG3       007C
MITFLAG4       0088
MITFLAG5       0089
MITF1UCB       0078 80
MITF4UCB       0088 80
MITHTYPE       0000
MITINTVL       0054
MITIOSFG       0072
MITJOBN        0018
MITLEN         0089 0000008A
MITLPM         0066
MITLPUM        0067
MITLVMSK       0073
MITMCEL        0016
MITMDL         0014
MITPIM         0068
MITPMCW        0064
MITRTYMI       0000 00000071
MITSCHIB       0020
MITSER         0011
MITSID         0060
MITSIZE        0089 00000012
MITSW0         0002
MITSW1         0003
MITSW2         0004
MITSW3         0005
MITSYS         0001
MITTIDDV       005C 20
MITTIME        000C
MITTMCSI       005C 80
MITTMHCI       005C 40
MITTMP         005C 04
MITTMPS        005C 02
MITTMSS        005C 01
MITTOD         0008
MITTRHCS       005F 80
MITTRIED       005F
MITTRIM        005F 08
MITTRLC        005F 04
MITTRRDD       005F 20
MITTRRIO       005F 10
MITTRSIN       005F 40
MITTSPSC       005C 10
MITTYPE        005C
MITUCBLV       0071
MITUCHAN       007A
MITVOLUM       0082
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:59:12 EDT.
Copyright IBM Corporation, 1990, 2022