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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
FTPBK
Control Block Contents
FTPBK DSECT
Cross Reference (Contains links to field and bit definitions)
FTPBK Prolog
NAME : HCPFTPBK
DESCRIPTION: FOOT-PRINT BLOCK
DSECT : FTPBK
FUNCTION : PROVIDE FOOT-PRINTING OF THE RECOVERY
PROCESS FOR SUBSEQUENT DEBUGGING
LOCATED BY : HCPWRKFP IS THE ANCHOR FOR THIS BLOCK.
CREATED BY : THE ASSEMBLY OF HCPWRK. THE
FOOT-PRINT BLOCK ALWAYS REMAINS
IN THE HOST CONTROL PROGRAM CRITICAL
WORKAREA. EACH OF THE FOLLOWING
MODULES 'OWN' AN AREA IN FTPBK
WHICH THEY USE FOR RECORDING :
HCPVRRMS
HCPMCWMD
HCPWRP
HCPDMP
HCPCKP/HCPWRM
DELETED BY : NONE, HOWEVER THE BLOCK IS CLEARED
BY HCPWRP
FTPBK Control Block Content
FTPBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure FTPBK FOOT-PRINT BLOCK 0000 0 Dbl-Word 8 FTPVRWCD (8) Record user before a bounce 0040 64 Dbl-Word 8 * (8) Reserved for IBM use 0080 128 Dbl-Word 8 FTPVRTST (9) Restart user footprints 00C8 200 Dbl-Word 8 FTPVRRMS (8) TERMINATION MSG BUFFER STATUS 0108 264 Dbl-Word 8 FTPMCWMD (24) FINAL STATUS OF EACH CPU 01C8 456 Dbl-Word 8 * (8) RESERVED FOR FUTURE IBM USE 0208 520 Dbl-Word 8 * (16) Reserved for IBM use TIMERS 0288 648 Dbl-Word 8 FTPWRP (6) System termination footprints 02B8 696 Dbl-Word 8 FTPIST (2) Storage Initialization footprints 02C8 712 Dbl-Word 8 FTPDMP (8) DUMP FOOTPRINTING 00000061 FTPGSVDW (*-FTPBK+7)/8 GSURV FOOTPRINT SIZE IN DBL-WORDS 0308 776 Dbl-Word 8 * (16) Reserved for IBM use 0388 904 Dbl-Word 8 FTPCKWRM (8) CHECKPOINT/WARMSTART FOOTPRINTS 00000008 FTPCKWDW (*-FTPCKWRM+7)/8 FTPCKWRM SIZE IN DOUBLE-WORDS 03C8 968 Dbl-Word 8 FTPBUFSZ TERM MESSAGE BUFFER SIZE 00000001 FTPBUFSL (*-FTPBUFSZ+7)/8 FTPBUFSZ IN DOUBLEWORDS 0000007A FTPSIZE (*-FTPBK+7)/8 FTPBK SIZE IN DOUBLE-WORDS 0108 264 Character 8 FTPMDNAM THE NAME 'HCPMCWMD' GOES HERE. 0110 272 Bitstring 1 FTPMDFF (0) INITIALIZE TO FF'S. (SEE FTPLEN2). 0110 272 Dbl-Word 8 FTPTOD (0) TIMESTAMP ON ENTRY TO HCPMCWMD. (ZEROS IF STORE-CLOCK FAILS.) 0110 272 Bitstring 1 * 0111 273 Bitstring 1 FTPTODB1 FIRST BYTE OF FOOTPRINT TOD FIELD 0112 274 Bitstring 1 * (6) 0118 280 Signed 4 FTPMDTAB (31) TABLE OF FOOTPRINTS, ONE ENTRY FOR EACH CPU. WE SUPPORT AS MANY AS 31 CPU'S (FOLLOWING THE SOMEWHAT ARBITRARY CONVENTION USED ELSEWHERE). 00000084 FTPLEN2 *-FTPMDFF LENGTH TO BE INITIALIZED TO FF'S. 0194 404 Signed 4 FTPFENCE THIS 'FENCE' OF ZEROES AT THE END OF THE INITIALLY ALL-FF'S TABLE PREVENTS US FROM RUNNING OFF THE END IN THE EVENT OF A MESSED UP CHAIN OF PREFIX PAGES. 00000090 FTPLEN3 *-FTPMCWMD LENGTH OF AREA USED BY HCPMCWMD. 0118 280 Bitstring 1 FTPENTRY (0) 0118 280 Bitstring 1 FTPCPUAD CONTAINS CPUID IN STAP FORMAT, LOW ORDER BYTE ONLY. 0119 281 Bitstring 1 FTPMFLG1 1... .... FTPUNKWN X'80' CPU IS IN AN 'UNKNOWN' STATE (HCPSGPST COULD NOT COMMUNICATE WITH IT). .1.. .... FTPCPUON X'40' CPU ASSOCIATED WITH THE PREFIX PAGE WAS ONLINE. (EXPECT IT TO BE OFFLINE AT TIMES SINCE PFX PAGE IS KEPT FOR 2 MINUTES AFTER VARY OFF.) ..1. .... FTPSTATX X'20' THE STATE OF THE CPU HOLDING THE THE TERMINATION LOCK WAS NOT 'PFXAVAIL'. ...1 .... FTPSOFER X'10' HCPMCWMD FOUND POSSIBLE SOFTWARE ERROR. .... 1... FTPHABEN X'08' HAD ABEND ON THIS CPU (AS REPORTED BY THE PFXHABEN FLAG IN ITS PREFIX PAGE). .... .1.. FTPCKSTP X'04' CPU IS CHECK-STOPPED AND FIRST NOTICED DURING CURRENT INCIDENT (NOT A RE-DISCOVERY OF A CHECK-STOP HANDLED EARLIER). .... ..1. FTPMCHKX X'02' A MACHINE CHECK OCCURRED AND FOR SOME REASON THE MACHINE-CHECK FLIH NEVER FINISHED HANDLING IT. .... ...1 FTPBROAD X'01' MACHINE CHECK IS ESSENTIALLY IDENTICAL TO AN EARLIER ONE AND IS REGARDED AS A 'BROADCAST' MACHINE CHECK. CAUTION: THE DATA IN THE BYTE BELOW IS SIMPLY COPIED FROM THE MCKBK AND MAY NOT APPLY TO THE CURRENT INCIDENT (ESPECIALLY IN THE CASE OF A CPU THAT IS NOT THE ONE HOLDING THE SYSTEM TERMINATION LOCK). IF NO ERROR WAS HANDLED ON (OR FOR) THIS CPU DURING THE CURRENT INCIDENT, THEN THESE FLAGS ARE SIMPLY LEFT OVER FROM A PREVIOUS INCIDENT. 011A 282 Bitstring 1 FTPMFLG2 1... .... FTPFSIE X'80' WE WERE RUNNING SIE (PFXHSIE WAS SET). .1.. .... FTPFERCS X'40' ERROR WAS CHECK-STOP, NOT MACHINE CHECK. ..1. .... FTPF2ND X'20' A SECONDARY ERROR OCCURRED WHILE HANDLING A MACHINE CHECK. ...1 .... FTPF2CS X'10' SECONDARY ERROR WAS A CHECK-STOP. .... 1... FTPFMCIC X'08' INVALID MCIC (REQUIRED BITS MISSING). .... .1.. FTPFABND X'04' POSSIBLE SOFTWARE ERROR ENCOUNTERED. WHERE WE CANNOT ISSUE HCPABEND, WE SET THIS FLAG, THEN TERMINATE. .... ..1. FTPFATSK X'02' ATTEMPTED TO RUN INTERRUPTED SYSTEM TASK TO COMPLETION. .... ...1 FTPFXTSK X'01' ATTEMPT TO COMPLETE INTERRUPTED SYSTEM TASK WAS SUCCESSFUL. CAUTION: THE DATA IN THE BYTE BELOW IS SIMPLY COPIED FROM THE MCKBK AND MAY NOT APPLY TO THE CURRENT INCIDENT (ESPECIALLY IN THE CASE OF A CPU THAT IS NOT THE ONE HOLDING THE SYSTEM TERMINATION LOCK). IF NO ERROR WAS HANDLED ON (OR FOR) THIS CPU DURING THE CURRENT INCIDENT, THEN THESE FLAGS ARE SIMPLY LEFT OVER FROM A PREVIOUS INCIDENT. NOTES : THE MCKFDIE2 AND MCKFIPLI FLAGS WILL NEVER BE SET IN THE BYTE BELOW SINCE THE BYTE BELOW IS COPIED FROM THE FLIH MCKBK, NOT THE SLIH MCKBK. 011B 283 Bitstring 1 FTPMFLG3 1... .... MCKFEMER X'80' EMERGENCY HOST TERMINATION REQUIRED (AND OTHER FLAGS MAY BE MEANINGLESS). .1.. .... MCKFNOTM X'40' HOST TERMINATION NOT REQUIRED BY THE MACHINE-CHECK FLIH. ..1. .... MCKFDIE1 X'20' HOST TERMINATION WAS REQUIRED BY THE MACHINE-CHECK FLIH. ...1 .... MCKFDIE2 X'10' HOST TERMINATION WAS REQUIRED BY THE MACHINE-CHECK SLIH. .... 1... MCKFIPL X'08' SOFT-RE-IPL AFTER TERMINATE DISALLOWED. .... .1.. MCKFIPLI X'04' SOFT-RE-IPL DISALLOWED BY IO SUB-SYSTEM. 00000004 FTPELEN *-FTPENTRY LENGTH OF A SINGLE ENTRY IN TABLE. 011C 284 Bitstring 1 FTPNEXTE (0) START OF NEXT ENTRY OF THE TABLE. 0388 904 Dbl-Word 8 FTPWRMST WARM START TIME 00000008 FTPWRMSL *-FTPCKWRM WARM START TIME LENGTH 0390 912 Dbl-Word 8 FTPWRMCT WARM START COMPLETED TIME 00000008 FTPWRMCL *-FTPWRMCT WARM START COMPLETED TIME LENGTH 0000 0 Character 3 FTPRCDFP Entered HCPWRP 0003 3 Bitstring 1 * Reserved for IBM use 0004 4 Signed 4 * Reserved for IBM use 0008 8 Bitstring 3 * Reserved for IBM use 000B 11 Bitstring 1 FTPUNLOK V=F Area is unlocked 0080 128 Character 3 FTPTSTFP Entered HCPISU 0083 131 Bitstring 1 FTPZMIVI CALL HCPZMIVI TO VERIFY STORAGE INITIALIZATION FOR I/O INTERPRETATION 0084 132 Signed 4 * (2) Reserved for IBM use 008C 140 Bitstring 1 * Reserved for IBM use 008D 141 Bitstring 1 FTPTSTCM VRTST DONE, BOUNCE OVER 00C8 200 Character 3 FTPRMSFP ENTERED HCPVRRMS ALREADY 00CB 203 Bitstring 1 FTPMSGST STATUS OF MESSAGE BUFFER 00CC 204 Signed 4 FTPMSGCT COUNT OF MESSAGES IN BUFFER 00D0 208 Signed 4 FTPMSGLN LENGTH OF MESSAGE BUFFER USED 0288 648 Character 3 FTPWRPFP HCPWRP FOOTPRINT 028B 651 Bitstring 1 * RESERVED FOR ALIGNMENT 028C 652 Signed 4 FTPWRPIN HCPWRPUP INPUT PARAMETERS 0290 656 Bitstring 1 FTPWRPDS DUMP STATUS .... ..1. FTPDMPIP X'02' DUMP IN PROGRESS FLAG .... ...1 FTPDMPFI X'01' DUMP TAKEN FLAG 0291 657 Bitstring 1 FTPWRPTS TERMINATION STATUS .... .... FTPTRMIP X'00' TERMINATION IN PROGRESS .... ...1 FTPTRMFI X'01' TERMINATION COMPLETE FLAG .... ..1. FTPTRMER X'02' TERMINATION UNSUCCESSFUL 0292 658 Bitstring 1 * RESERVED FOR IBM USE 0293 659 Bitstring 1 FTPWRPER ERROR STATUS .... ...1 FTPPRGCK X'01' PROGRAM CHECK CAUSED WAIT 921 .... ..1. FTPSVCIN X'02' SVC INTERRUPT CAUSED WAIT 921 0294 660 Bitstring 1 FTPNEWNC STATUS OF TRANSFERRING CONTROL TO A NEW NUCLEUS .... ...1 FTPIPLRD X'01' IPL RECORD OF NEW NUCLEUS READ .... ..1. FTPNEWRD X'02' HCPLOD OF NEW NUCLEUS WAS READ .... ..11 FTPTRANS X'03' TRANSFER OF CONTROL TO NEW NUCLEUS ATTEMPTED 02B8 696 Character 3 FTPISTFP HCPWRP footprint 02BB 699 Bitstring 1 FTPISTST HCPIST status footprint 03C8 968 Signed 4 FTPMSGSZ LENGTH OF AVAILABLE MESSAGE BUFFER
FTPBK Storage Layout
*** FTPBK - FOOT-PRINT BLOCK
*
* +-------------------------------------------------------+
* 0 | |
* = FTPVRWCD =
* | |
* +-------------------------------------------------------+
* 40 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 80 | |
* = FTPVRTST =
* | |
* +-------------------------------------------------------+
* C8 | |
* = FTPVRRMS =
* | |
* +-------------------------------------------------------+
* 108 | |
* = FTPMCWMD =
* | |
* +-------------------------------------------------------+
* 1C8 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 208 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 288 | |
* = FTPWRP =
* | |
* +-------------------------------------------------------+
* 2B8 | FTPIST |
* | |
* +-------------------------------------------------------+
* 2C8 | |
* = FTPDMP =
* | |
* +-------------------------------------------------------+
* 308 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 388 | |
* = FTPCKWRM =
* | |
* +-------------------------------------------------------+
* 3C8 | FTPBUFSZ |
* +-------------------------------------------------------+
* 3D0
*
*** FTPBK - FOOT-PRINT BLOCK
*** Overlay for FTPMCWMD in FTPBK
*
* +-------------------------------------------------------+
* 108 | FTPMDNAM |
* +------+------+-----------------------------------------+
* 110 |//////|:TODB1|/////////////////////////////////////////|
* +------+------+-----------------------------------------+
* 118 | |
* = FTPMDTAB =
* | +---------------------------+
* 190 | | FTPFENCE |
* +---------------------------+---------------------------+
* 198
*
*** Overlay for FTPMCWMD in FTPBK
*** Overlay for FTPMDTAB in FTPBK
*
* +------+------+------+------+
* 118 |:CPUAD|:MFLG1|:MFLG2|:MFLG3|
* +------+------+------+------+
*
*** Overlay for FTPMDTAB in FTPBK
*** Overlay for FTPCKWRM in FTPBK
*
* +-------------------------------------------------------+
* 388 | FTPWRMST |
* +-------------------------------------------------------+
* 390 | FTPWRMCT |
* +-------------------------------------------------------+
* 398
*
*** Overlay for FTPCKWRM in FTPBK
*** Overlay for FTPVRWCD in FTPBK
*
* +--------------------+------+---------------------------+
* 0 | FTPRCDFP |//////|///////////////////////////|
* +--------------------+------+---------------------------+
* 8 |////////////////////|:UNLOK| C
* +--------------------+------+
*
*** Overlay for FTPVRWCD in FTPBK
*** Overlay for FTPVRTST in FTPBK
*
* +--------------------+------+---------------------------+
* 80 | FTPTSTFP |:ZMIVI|///////////////////////////|
* +--------------------+------+------+------+-------------+
* 88 |///////////////////////////|//////|:TSTCM| 8E
* +---------------------------+------+------+
*
*** Overlay for FTPVRTST in FTPBK
*** Overlay for FTPVRRMS in FTPBK
*
* +--------------------+------+---------------------------+
* C8 | FTPRMSFP |:MSGST| FTPMSGCT |
* +--------------------+------+---------------------------+
* D0 | FTPMSGLN | D4
* +---------------------------+
*
*** Overlay for FTPVRRMS in FTPBK
*** Overlay for FTPWRP in FTPBK
*
* +--------------------+------+---------------------------+
* 288 | FTPWRPFP |//////| FTPWRPIN |
* +------+------+------+------+------+--------------------+
* 290 |:WRPDS|:WRPTS|//////|:WRPER|:NEWNC| 295
* +------+------+------+------+------+
*
*** Overlay for FTPWRP in FTPBK
*** Overlay for FTPIST in FTPBK
*
* +--------------------+------+
* 2B8 | FTPISTFP |:ISTST| 2BC
* +--------------------+------+
*
*** Overlay for FTPIST in FTPBK
*** Overlay for FTPBUFSZ in FTPBK
*
* +---------------------------+
* 3C8 | FTPMSGSZ | 3CC
* +---------------------------+
*
*** Overlay for FTPBUFSZ in FTPBK
FTPBK Cross Reference
Symbol Dspl Value -------------- ---- ----- FTPBROAD 0119 01 FTPBUFSL 03C8 00000001 FTPBUFSZ 03C8 FTPCKSTP 0119 04 FTPCKWDW 0388 00000008 FTPCKWRM 0388 FTPCPUAD 0118 FTPCPUON 0119 40 FTPDMP 02C8 FTPDMPFI 0290 01 FTPDMPIP 0290 02 FTPELEN 011B 00000004 FTPENTRY 0118 FTPFABND 011A 04 FTPFATSK 011A 02 FTPFENCE 0194 FTPFERCS 011A 40 FTPFMCIC 011A 08 FTPFSIE 011A 80 FTPFXTSK 011A 01 FTPF2CS 011A 10 FTPF2ND 011A 20 FTPGSVDW 02C8 00000061 FTPHABEN 0119 08 FTPIPLRD 0294 01 FTPIST 02B8 FTPISTFP 02B8 FTPISTST 02BB FTPLEN2 0118 00000084 FTPLEN3 0194 00000090 FTPMCHKX 0119 02 FTPMCWMD 0108 FTPMDFF 0110 FTPMDNAM 0108 FTPMDTAB 0118 FTPMFLG1 0119 FTPMFLG2 011A FTPMFLG3 011B FTPMSGCT 00CC FTPMSGLN 00D0 FTPMSGST 00CB FTPMSGSZ 03C8 FTPNEWNC 0294 FTPNEWRD 0294 02 FTPNEXTE 011C FTPPRGCK 0293 01 FTPRCDFP 0000 FTPRMSFP 00C8 FTPSIZE 03C8 0000007A FTPSOFER 0119 10 FTPSTATX 0119 20 FTPSVCIN 0293 02 FTPTOD 0110 FTPTODB1 0111 FTPTRANS 0294 03 FTPTRMER 0291 02 FTPTRMFI 0291 01 FTPTRMIP 0291 00 FTPTSTCM 008D FTPTSTFP 0080 FTPUNKWN 0119 80 FTPUNLOK 000B FTPVRRMS 00C8 FTPVRTST 0080 FTPVRWCD 0000 FTPWRMCL 0390 00000008 FTPWRMCT 0390 FTPWRMSL 0388 00000008 FTPWRMST 0388 FTPWRP 0288 FTPWRPDS 0290 FTPWRPER 0293 FTPWRPFP 0288 FTPWRPIN 028C FTPWRPTS 0291 FTPZMIVI 0083 MCKFDIE1 011B 20 MCKFDIE2 011B 10 MCKFEMER 011B 80 MCKFIPL 011B 08 MCKFIPLI 011B 04 MCKFNOTM 011B 40
Copyright IBM Corporation, 1990, 2005