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 (35) FINAL STATUS OF EACH CPU 0220 544 Dbl-Word 8 FTPWRP (6) System termination footprints 0250 592 Dbl-Word 8 FTPIST (2) Storage Initialization footprints 0260 608 Dbl-Word 8 FTPDMP (8) DUMP FOOTPRINTING 00000054 FTPGSVDW (*-FTPBK+7)/8 GSURV FOOTPRINT SIZE IN DBL-WORDS 02A0 672 Dbl-Word 8 * (16) Reserved for IBM use 0320 800 Dbl-Word 8 FTPCKWRM (8) CHECKPOINT/WARMSTART FOOTPRINTS 00000008 FTPCKWDW (*-FTPCKWRM+7)/8 FTPCKWRM SIZE IN DOUBLE-WORDS 0360 864 Dbl-Word 8 FTPBUFSZ TERM MESSAGE BUFFER SIZE 00000001 FTPBUFSL (*-FTPBUFSZ+7)/8 FTPBUFSZ IN DOUBLEWORDS 0000006D 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 (64) TABLE OF FOOTPRINTS, ONE ENTRY FOR EACH CPU. WE SUPPORT AS MANY AS 64 CPU'S. 00000108 FTPLEN2 *-FTPMDFF LENGTH TO BE INITIALIZED TO FF'S. 0218 536 Dbl-Word 8 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. 00000118 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' FTPUNKWN CPU IS IN AN 'UNKNOWN' STATE (HCPSGPST COULD NOT COMMUNICATE WITH IT). .1.. .... FTPCPUON X'40' FTPCPUON 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' FTPSTATX THE STATE OF THE CPU HOLDING THE THE TERMINATION LOCK WAS NOT 'PFXAVAIL'. ...1 .... FTPSOFER X'10' FTPSOFER HCPMCWMD FOUND POSSIBLE SOFTWARE ERROR. .... 1... FTPHABEN X'08' FTPHABEN HAD ABEND ON THIS CPU (AS REPORTED BY THE PFXHABEN FLAG IN ITS PREFIX PAGE). .... .1.. FTPCKSTP X'04' FTPCKSTP CPU IS CHECK-STOPPED AND FIRST NOTICED DURING CURRENT INCIDENT (NOT A RE-DISCOVERY OF A CHECK-STOP HANDLED EARLIER). .... ..1. FTPMCHKX X'02' FTPMCHKX A MACHINE CHECK OCCURRED AND FOR SOME REASON THE MACHINE-CHECK FLIH NEVER FINISHED HANDLING IT. .... ...1 FTPBROAD X'01' FTPBROAD 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' FTPFSIE WE WERE RUNNING SIE (PFXHSIE WAS SET). .1.. .... FTPFERCS X'40' FTPFERCS ERROR WAS CHECK-STOP, NOT MACHINE CHECK. ..1. .... FTPF2ND X'20' FTPF2ND A SECONDARY ERROR OCCURRED WHILE HANDLING A MACHINE CHECK. ...1 .... FTPF2CS X'10' FTPF2CS SECONDARY ERROR WAS A CHECK-STOP. .... 1... FTPFMCIC X'08' FTPFMCIC INVALID MCIC (REQUIRED BITS MISSING). .... .1.. FTPFABND X'04' FTPFABND POSSIBLE SOFTWARE ERROR ENCOUNTERED. WHERE WE CANNOT ISSUE HCPABEND, WE SET THIS FLAG, THEN TERMINATE. .... ..1. FTPFATSK X'02' FTPFATSK ATTEMPTED TO RUN INTERRUPTED SYSTEM TASK TO COMPLETION. .... ...1 FTPFXTSK X'01' FTPFXTSK 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' MCKFEMER EMERGENCY HOST TERMINATION REQUIRED (AND OTHER FLAGS MAY BE MEANINGLESS). .1.. .... MCKFNOTM X'40' MCKFNOTM HOST TERMINATION NOT REQUIRED BY THE MACHINE-CHECK FLIH. ..1. .... MCKFDIE1 X'20' MCKFDIE1 HOST TERMINATION WAS REQUIRED BY THE MACHINE-CHECK FLIH. ...1 .... MCKFDIE2 X'10' MCKFDIE2 HOST TERMINATION WAS REQUIRED BY THE MACHINE-CHECK SLIH. .... 1... MCKFIPL X'08' MCKFIPL SOFT-RE-IPL AFTER TERMINATE DISALLOWED. .... .1.. MCKFIPLI X'04' MCKFIPLI 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. 0320 800 Dbl-Word 8 FTPWRMST WARM START TIME 00000008 FTPWRMSL *-FTPCKWRM WARM START TIME LENGTH 0328 808 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 0220 544 Character 3 FTPWRPFP HCPWRP FOOTPRINT 0223 547 Bitstring 1 * RESERVED FOR ALIGNMENT 0224 548 Signed 4 FTPWRPIN HCPWRPUP INPUT PARAMETERS 0228 552 Bitstring 1 FTPWRPDS DUMP STATUS .... ..1. FTPDMPIP X'02' FTPDMPIP DUMP IN PROGRESS FLAG .... ...1 FTPDMPFI X'01' FTPDMPFI DUMP TAKEN FLAG 0229 553 Bitstring 1 FTPWRPTS TERMINATION STATUS .... .... FTPTRMIP X'00' FTPTRMIP TERMINATION IN PROGRESS .... ...1 FTPTRMFI X'01' FTPTRMFI TERMINATION COMPLETE FLAG .... ..1. FTPTRMER X'02' FTPTRMER TERMINATION UNSUCCESSFUL 022A 554 Bitstring 1 * RESERVED FOR IBM USE 022B 555 Bitstring 1 FTPWRPER ERROR STATUS .... ...1 FTPPRGCK X'01' FTPPRGCK PROGRAM CHECK CAUSED WAIT 921 .... ..1. FTPSVCIN X'02' FTPSVCIN SVC INTERRUPT CAUSED WAIT 921 022C 556 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 0250 592 Character 3 FTPISTFP HCPWRP footprint 0253 595 Bitstring 1 FTPISTST HCPIST status footprint 0360 864 Signed 4 FTPMSGSZ LENGTH OF AVAILABLE MESSAGE BUFFER
FTPBK Storage Layout
*** FTPBK - FOOT-PRINT BLOCK * * +-------------------------------------------------------+ * 0 | | * = FTPVRWCD = * | | * +-------------------------------------------------------+ * 40 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 80 | | * = FTPVRTST = * | | * +-------------------------------------------------------+ * C8 | | * = FTPVRRMS = * | | * +-------------------------------------------------------+ * 108 | | * = FTPMCWMD = * | | * +-------------------------------------------------------+ * 220 | | * = FTPWRP = * | | * +-------------------------------------------------------+ * 250 | FTPIST | * | | * +-------------------------------------------------------+ * 260 | | * = FTPDMP = * | | * +-------------------------------------------------------+ * 2A0 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 320 | | * = FTPCKWRM = * | | * +-------------------------------------------------------+ * 360 | FTPBUFSZ | * +-------------------------------------------------------+ * 368 * *** FTPBK - FOOT-PRINT BLOCK *** Overlay for FTPMCWMD in FTPBK * * +-------------------------------------------------------+ * 108 | FTPMDNAM | * +------+------+-----------------------------------------+ * 110 |//////|:TODB1|/////////////////////////////////////////| * +------+------+-----------------------------------------+ * 118 | | * = FTPMDTAB = * | | * +-------------------------------------------------------+ * 218 | FTPFENCE | * +-------------------------------------------------------+ * 220 * *** 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 * * +-------------------------------------------------------+ * 320 | FTPWRMST | * +-------------------------------------------------------+ * 328 | FTPWRMCT | * +-------------------------------------------------------+ * 330 * *** 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 * * +--------------------+------+---------------------------+ * 220 | FTPWRPFP |//////| FTPWRPIN | * +------+------+------+------+------+--------------------+ * 228 |:WRPDS|:WRPTS|//////|:WRPER|:NEWNC| 22D * +------+------+------+------+------+ * *** Overlay for FTPWRP in FTPBK *** Overlay for FTPIST in FTPBK * * +--------------------+------+ * 250 | FTPISTFP |:ISTST| 254 * +--------------------+------+ * *** Overlay for FTPIST in FTPBK *** Overlay for FTPBUFSZ in FTPBK * * +---------------------------+ * 360 | FTPMSGSZ | 364 * +---------------------------+ * *** Overlay for FTPBUFSZ in FTPBK
FTPBK Cross Reference
Symbol Dspl Value -------------- ---- ----- FTPBROAD 0119 01 FTPBUFSL 0360 00000001 FTPBUFSZ 0360 FTPCKSTP 0119 04 FTPCKWDW 0320 00000008 FTPCKWRM 0320 FTPCPUAD 0118 FTPCPUON 0119 40 FTPDMP 0260 FTPDMPFI 0228 01 FTPDMPIP 0228 02 FTPELEN 011B 00000004 FTPENTRY 0118 FTPFABND 011A 04 FTPFATSK 011A 02 FTPFENCE 0218 FTPFERCS 011A 40 FTPFMCIC 011A 08 FTPFSIE 011A 80 FTPFXTSK 011A 01 FTPF2CS 011A 10 FTPF2ND 011A 20 FTPGSVDW 0260 00000054 FTPHABEN 0119 08 FTPIPLRD 022C 01 FTPIST 0250 FTPISTFP 0250 FTPISTST 0253 FTPLEN2 0118 00000108 FTPLEN3 0218 00000118 FTPMCHKX 0119 02 FTPMCWMD 0108 FTPMDFF 0110 FTPMDNAM 0108 FTPMDTAB 0118 FTPMFLG1 0119 FTPMFLG2 011A FTPMFLG3 011B FTPMSGCT 00CC FTPMSGLN 00D0 FTPMSGST 00CB FTPMSGSZ 0360 FTPNEWNC 022C FTPNEWRD 022C 02 FTPNEXTE 011C FTPPRGCK 022B 01 FTPRCDFP 0000 FTPRMSFP 00C8 FTPSIZE 0360 0000006D FTPSOFER 0119 10 FTPSTATX 0119 20 FTPSVCIN 022B 02 FTPTOD 0110 FTPTODB1 0111 FTPTRANS 022C 03 FTPTRMER 0229 02 FTPTRMFI 0229 01 FTPTRMIP 0229 00 FTPTSTCM 008D FTPTSTFP 0080 FTPUNKWN 0119 80 FTPUNLOK 000B FTPVRRMS 00C8 FTPVRTST 0080 FTPVRWCD 0000 FTPWRMCL 0328 00000008 FTPWRMCT 0328 FTPWRMSL 0320 00000008 FTPWRMST 0320 FTPWRP 0220 FTPWRPDS 0228 FTPWRPER 022B FTPWRPFP 0220 FTPWRPIN 0224 FTPWRPTS 0229 FTPZMIVI 0083 MCKFDIE1 011B 20 MCKFDIE2 011B 10 MCKFEMER 011B 80 MCKFIPL 011B 08 MCKFIPLI 011B 04 MCKFNOTM 011B 40
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