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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
MCRBK
Control Block Contents
MCRBK DSECT
Cross Reference (Contains links to field and bit definitions)
MCRBK Prolog
NAME : HCPMCRBK
DESCRIPTION: Machine Check Record Block
DSECT : MCRBK
FUNCTION : HCPMCRBK contains information relative to a
machine check incident which (incident) is to be
reflected to a guest.
LOCATED BY : Is a mapping of the parameters passed for
manufacturing a machine check or building the
message information when communicating a machine
check incident.
CREATED BY : Any caller who wants to pass a machine check record
information.
DELETED BY : The caller who creates it or the callee. This is
communicated via MCRFLAG1 in this control block.
MCRBK Control Block Content
MCRBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MCRBK Machine Check Record Block 0000 0 Dbl-Word 8 MCRMCIC (0) Machine Check Interruption Code 0000 0 Signed 4 MCRMCWD0 (0) MCRMCIC word 0 0000 0 Bitstring 2 MCRMCB01 (0) MCRMCIC byte 0 and 1 0000 0 Bitstring 1 MCRMCIC0 MCRMCIC byte 0 1111 1111 MCIPRIM0 X'FF' PRIMARY MACHINE CHECK BITS - BYTE 0 1... .... MCICSD X'80' SYSTEM DAMAGE BIT. .1.. .... MCICPD X'40' PROCESSING DAMAGE BIT. ..1. .... MCICSR X'20' SYSTEM RECOVERY BIT. ...1 .... MCICITD X'10' INTERVAL TIMER DAMAGE. (370 GUESTS) .... 1... MCICCD X'08' TIMING (CLOCK) FACILITY DAMAGE. .... .1.. MCICED X'04' EXTERNAL DAMAGE. .... ..1. MCICVFF X'02' VECTOR FACILITY FAILURE .... ...1 MCICDG X'01' DEGRADATION BIT. 0001 1 Bitstring 1 MCRMCIC1 MCRMCIC byte 1 1111 .... MCIPRIM1 X'F0' PRIMARY MACHINE CHECK BITS - BYTE 1 1... .... MCICW X'80' WARNING BIT. .1.. .... MCICCRW X'40' PENDING-CRW REPORT. ..1. .... MCICSP X'20' SERVICE PROCESSOR DAMAGE. ...1 .... MCICCSD X'10' CHANNEL-SUBSYSTEM DAMAGE. .... .1.. MCICVFS X'04' VECTOR FACILITY SOURCE .... ..1. MCICBU X'02' 'BACKED UP' BIT. .... ...1 MCICDL X'01' 'DELAYED' BIT. (370 GUESTS) 0002 2 Bitstring 1 MCRMCIC2 MCRMCIC byte 2 1... .... MCICSE X'80' STORAGE ERROR UNCORRECTED. .1.. .... MCICSC X'40' STORAGE ERROR CORRECTED. ..1. .... MCICKE X'20' STORAGE-KEY ERROR UNCORRECTED. ...1 .... MCICSDG X'10' STORAGE DEGRADATION. MODIFIES STORAGE ERROR CORRECTED. .... 1... MCICVWP X'08' BITS 12-15 OF MC OLD PSW VALID. .... .1.. MCICVMS X'04' SYSTEM MASK & KEY OF MC OLD PSW VALID. .... ..1. MCICVPM X'02' PROGRAM MASK & CC OF MC OLD PSW VALID. .... ...1 MCICVIA X'01' INSTR ADDR OF MC OLD PSW IS VALID. 0003 3 Bitstring 1 MCRMCIC3 MCRMCIC byte 3 1... .... MCICVFA X'80' FAILING STORAGE ADDRESS IS VALID. ..1. .... MCICVED X'20' EXTERNAL-DAMAGE CODE IS VALID. ...1 .... MCICVFP X'10' FP REGISTERS STORED ARE VALID. .... 1... MCICVGR X'08' GP REGISTERS STORED ARE VALID. .... .1.. MCICVCR X'04' CONTROL REGISTERS STORED VALID. .... ..1. MCICVLG X'02' EXTENDED LOGOUT AREA IS VALID. .... ...1 MCICVST X'01' INST. MODIFIED STORAGE IS VALID. 0004 4 Signed 4 MCRMCWD1 (0) MCRMCIC word 1 0004 4 Bitstring 1 MCRMCIC4 MCRMCIC byte 4 1... .... MCICIE X'80' INDIRECT STORAGE ERROR .1.. .... MCICVAR X'40' ACCESS REGISTERS STORED ARE VALID ..1. .... MCICDA X'20' DELAYED ACCESS EXCEPTION BIT 0005 5 Bitstring 1 MCRMCIC5 MCRMCIC byte 5 ..1. .... MCICVTPR X'20' TOD programmable register validity ...1 .... MCICVXFP X'10' Additional FP Registers Validity (ESA390) FP Control Register Validity (ESAME) .... 1... MCICAR X'08' Ancillary Report Bit .... ..1. MCICVCT X'02' CPU TIMER STORED IS VALID. .... ...1 MCICVCC X'01' CLOCK COMPARATOR STORED IS VALID. 0006 6 Bitstring 1 MCRMCIC6 MCRMCIC byte 6 0007 7 Bitstring 1 MCRMCIC7 MCRMCIC byte 7 0008 8 Signed 4 * 000C 12 Signed 4 MCREDC (0) Machine check external-damage code 000C 12 Bitstring 1 MCREDCB0 MCREDC byte 0 .... .... MCEXTD0 X'00' No bits defined 000D 13 Bitstring 1 MCREDCB1 MCREDC byte 1 1... .... MCEXTDXN X'80' Bit 8 - Extended storage not operational .1.. .... MCEXTDXF X'40' Bit 9 - Extended storage control failure 000E 14 Bitstring 1 MCREDCB2 MCREDC byte 2 1... .... MCEXTDPS X'80' Bit 16 - Primary-Sync Damage .1.. .... MCEXTDEA X'40' Bit 17 - ETR Attachement Damage ..1. .... MCEXTDSL X'20' Bit 18 - Switch to local ...1 .... MCEXTDES X'10' Bit 19 - ETR Sync check 000F 15 Bitstring 1 MCREDCB3 MCREDC byte 3 .... .... MCEXTD3 X'00' No bits defined 0010 16 Signed 4 MCRMCICX Machine check interruption code extension 0014 20 Bitstring 1 MCRFLAG1 Flag byte 1 1... .... MCRREAL X'80' Failing storage address is real. If this bit is zero the failing storage address (if specified) is absolute. This bit is meaningful only when the MCRNULLA bit is 0. .1.. .... MCRRELST X'40' MCRBK storage is to be released by the guest machine service routines when this machine check is presented. ..1. .... MCRNULLA X'20' Indicates that MCRFSAD/MCRGFAD contains a null address 0015 21 Bitstring 1 * Reserved for IBM use. 0016 22 Bitstring 1 * Reserved for IBM use. 0017 23 Bitstring 1 * Reserved for IBM use 0018 24 Dbl-Word 8 MCRFLOG (2) Fixed logout area 0028 40 Dbl-Word 8 MCRGFAD (0) ESAME 64 bit failing stor addr 0028 40 Signed 4 MCR64HI High order 32 bits of 64 bit addr 002C 44 Signed 4 MCRFSAD Guest failing storage address 0000002C MCR64LO MCRFSAD Low order 32 bits of 64 bit addr 00000030 MCRLEN *-MCRBK MCRBK block size in bytes 00000006 MCRSIZE (MCRLEN+7)/8 MCRBK block size in doublewords 0018 24 Dbl-Word 8 MCRFASIT Failing-storage internal ASIT 0000 0 Bitstring 2 * 0002 2 Bitstring 4 MCRMCB25 MCRMCIC bytes 2-5 0006 6 Bitstring 2 *
MCRBK Storage Layout
*** MCRBK - Machine Check Record Block
*
* +------+------+------+------+------+------+------+------+
* 0 |:MCIC0|:MCIC1|:MCIC2|:MCIC3|:MCIC4|:MCIC5|:MCIC6|:MCIC7|
* +------+------+------+------+------+------+------+------+
* 8 |///////////////////////////|:EDCB0|:EDCB1|:EDCB2|:EDCB3|
* +---------------------------+------+------+------+------+
* 10 | MCRMCICX |:FLAG1|//////|//////|//////|
* +---------------------------+------+------+------+------+
* 18 | MCRFLOG |
* | |
* +---------------------------+---------------------------+
* 28 | MCR64HI | MCRFSAD |
* +---------------------------+---------------------------+
* 30
*
*** MCRBK - Machine Check Record Block
*** Overlay for MCRFLOG in MCRBK
*
* +-------------------------------------------------------+
* 18 | MCRFASIT |
* +-------------------------------------------------------+
* 20
*
*** Overlay for MCRFLOG in MCRBK
*** Overlay for MCRMCIC in MCRBK
*
* +-------------+---------------------------+-------------+
* 0 |/////////////| MCRMCB25 |/////////////|
* +-------------+---------------------------+-------------+
* 8
*
*** Overlay for MCRMCIC in MCRBK
MCRBK Cross Reference
Symbol Dspl Value -------------- ---- ----- MCEXTDEA 000E 40 MCEXTDES 000E 10 MCEXTDPS 000E 80 MCEXTDSL 000E 20 MCEXTDXF 000D 40 MCEXTDXN 000D 80 MCEXTD0 000C 00 MCEXTD3 000F 00 MCICAR 0005 08 MCICBU 0001 02 MCICCD 0000 08 MCICCRW 0001 40 MCICCSD 0001 10 MCICDA 0004 20 MCICDG 0000 01 MCICDL 0001 01 MCICED 0000 04 MCICIE 0004 80 MCICITD 0000 10 MCICKE 0002 20 MCICPD 0000 40 MCICSC 0002 40 MCICSD 0000 80 MCICSDG 0002 10 MCICSE 0002 80 MCICSP 0001 20 MCICSR 0000 20 MCICVAR 0004 40 MCICVCC 0005 01 MCICVCR 0003 04 MCICVCT 0005 02 MCICVED 0003 20 MCICVFA 0003 80 MCICVFF 0000 02 MCICVFP 0003 10 MCICVFS 0001 04 MCICVGR 0003 08 MCICVIA 0002 01 MCICVLG 0003 02 MCICVMS 0002 04 MCICVPM 0002 02 MCICVST 0003 01 MCICVTPR 0005 20 MCICVWP 0002 08 MCICVXFP 0005 10 MCICW 0001 80 MCIPRIM0 0000 FF MCIPRIM1 0001 F0 MCREDC 000C MCREDCB0 000C MCREDCB1 000D MCREDCB2 000E MCREDCB3 000F MCRFASIT 0018 MCRFLAG1 0014 MCRFLOG 0018 MCRFSAD 002C MCRGFAD 0028 MCRLEN 002C 00000030 MCRMCB01 0000 MCRMCB25 0002 MCRMCIC 0000 MCRMCICX 0010 MCRMCIC0 0000 MCRMCIC1 0001 MCRMCIC2 0002 MCRMCIC3 0003 MCRMCIC4 0004 MCRMCIC5 0005 MCRMCIC6 0006 MCRMCIC7 0007 MCRMCWD0 0000 MCRMCWD1 0004 MCRNULLA 0014 20 MCRREAL 0014 80 MCRRELST 0014 40 MCRSIZE 002C 00000006 MCR64HI 0028 MCR64LO 002C 0000002C
Copyright IBM Corporation, 1990, 2001