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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.
RELOCATION CONSIDERATIONS : None
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' MCIPRIM0 PRIMARY MACHINE CHECK BITS - BYTE 0 1... .... MCICSD X'80' MCICSD SYSTEM DAMAGE BIT. .1.. .... MCICPD X'40' MCICPD PROCESSING DAMAGE BIT. ..1. .... MCICSR X'20' MCICSR SYSTEM RECOVERY BIT. ...1 .... MCICITD X'10' MCICITD INTERVAL TIMER DAMAGE. (370 GUESTS) .... 1... MCICCD X'08' MCICCD TIMING (CLOCK) FACILITY DAMAGE. .... .1.. MCICED X'04' MCICED EXTERNAL DAMAGE. .... ...1 MCICDG X'01' MCICDG DEGRADATION BIT. 0001 1 Bitstring 1 MCRMCIC1 MCRMCIC byte 1 1111 .... MCIPRIM1 X'F0' MCIPRIM1 PRIMARY MACHINE CHECK BITS - BYTE 1 1... .... MCICW X'80' MCICW WARNING BIT. .1.. .... MCICCRW X'40' MCICCRW PENDING-CRW REPORT. ..1. .... MCICSP X'20' MCICSP SERVICE PROCESSOR DAMAGE. ...1 .... MCICCSD X'10' MCICCSD CHANNEL-SUBSYSTEM DAMAGE. .... ..1. MCICBU X'02' MCICBU 'BACKED UP' BIT. .... ...1 MCICDL X'01' MCICDL 'DELAYED' BIT. (370 GUESTS) 0002 2 Bitstring 1 MCRMCIC2 MCRMCIC byte 2 1... .... MCICSE X'80' MCICSE STORAGE ERROR UNCORRECTED. .1.. .... MCICSC X'40' MCICSC STORAGE ERROR CORRECTED. ..1. .... MCICKE X'20' MCICKE STORAGE-KEY ERROR UNCORRECTED. ...1 .... MCICSDG X'10' MCICSDG STORAGE DEGRADATION. MODIFIES STORAGE ERROR CORRECTED. .... 1... MCICVWP X'08' MCICVWP BITS 12-15 OF MC OLD PSW VALID. .... .1.. MCICVMS X'04' MCICVMS SYSTEM MASK & KEY OF MC OLD PSW VALID. .... ..1. MCICVPM X'02' MCICVPM PROGRAM MASK & CC OF MC OLD PSW VALID. .... ...1 MCICVIA X'01' MCICVIA INSTR ADDR OF MC OLD PSW IS VALID. 0003 3 Bitstring 1 MCRMCIC3 MCRMCIC byte 3 1... .... MCICVFA X'80' MCICVFA FAILING STORAGE ADDRESS IS VALID. ..1. .... MCICVED X'20' MCICVED EXTERNAL-DAMAGE CODE IS VALID. ...1 .... MCICVFP X'10' MCICVFP FP REGISTERS STORED ARE VALID. .... 1... MCICVGR X'08' MCICVGR GP REGISTERS STORED ARE VALID. .... .1.. MCICVCR X'04' MCICVCR CONTROL REGISTERS STORED VALID. .... ..1. MCICVLG X'02' MCICVLG EXTENDED LOGOUT AREA IS VALID. .... ...1 MCICVST X'01' MCICVST 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' MCICIE INDIRECT STORAGE ERROR .1.. .... MCICVAR X'40' MCICVAR ACCESS REGISTERS STORED ARE VALID ..1. .... MCICDA X'20' MCICDA DELAYED ACCESS EXCEPTION BIT 0005 5 Bitstring 1 MCRMCIC5 MCRMCIC byte 5 ..1. .... MCICVTPR X'20' MCICVTPR TOD programmable register validity ...1 .... MCICVXFP X'10' MCICVXFP Additional FP Registers Validity (ESA390) FP Control Register Validity (zArch) .... 1... MCICAR X'08' MCICAR Ancillary Report Bit .... ..1. MCICVCT X'02' MCICVCT CPU TIMER STORED IS VALID. .... ...1 MCICVCC X'01' MCICVCC 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' MCEXTD0 No bits defined 000D 13 Bitstring 1 MCREDCB1 MCREDC byte 1 .... .... MCEXTD1 X'00' MCEXTD1 No bits defined 000E 14 Bitstring 1 MCREDCB2 MCREDC byte 2 ...1 .... MCEXTDSC X'10' MCEXTDSC Bit 19 - ETR Sync check 000F 15 Bitstring 1 MCREDCB3 MCREDC byte 3 1... .... MCEXTDSS X'80' MCEXTDSS Bit 24 - STP Sync Check .1.. .... MCEXTDIC X'40' MCEXTDIC Bit 25 - Island Condition ..1. .... MCEXTDCC X'20' MCEXTDCC Bit 26 - CTN Configuration Change ...1 .... MCEXTDCS X'10' MCEXTDCS Bit 27 - STP Clock Source Error 0010 16 Signed 4 MCRMCICX Machine check interruption code extension 0014 20 Bitstring 1 MCRFLAG1 Flag byte 1 1... .... MCRREAL X'80' MCRREAL 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' MCRRELST MCRBK storage is to be released by the guest machine service routines when this machine check is presented. ..1. .... MCRNULLA X'20' MCRNULLA 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) 64 bit failing storage 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 -------------- ---- ----- MCEXTDCC 000F 20 MCEXTDCS 000F 10 MCEXTDIC 000F 40 MCEXTDSC 000E 10 MCEXTDSS 000F 80 MCEXTD0 000C 00 MCEXTD1 000D 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 MCICVFP 0003 10 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
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