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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
PCSBK
Control Block Contents
PCSBK DSECT
Cross Reference (Contains links to field and bit definitions)
PCSBK Prolog
NAME : HCPPCSBK
DESCRIPTION: PROCESSOR CONTROLLER STATUS BLOCK
DSECT : PCSBK
FUNCTION : THIS CONTROL BLOCK RECORDS ALL COMMUNICATION STATUS
BETWEEN CP AND THE PROCESSOR CONTROLLER. THE REAL
PROCESSOR CONTROLLER REQUEST STATUS IS STRICTLY
MAINTAINED BY THE PROCESSING SUPPORT MODULE HCPPCR.
LOCATED BY : SYSPCSBK ANCHOR FIELD IN HCPSYSCM
CREATED BY : HCPPCR ALLOCATED AND INITIALIZED WHEN REAL PROCESSOR
CONTROLLER REQUEST PROCESS IS FIRST INVOKED.
DELETED BY : NEVER DELETED
RELOCATION CONSIDERATIONS : None
PCSBK Control Block Content
PCSBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure PCSBK PROCESSOR CONTROLLER STATUS BLOCK 0000 0 Address 4 PCSPCRQ POINTER TO FIRST PCRBK IN PC QUEUE 0004 4 Address 4 PCSACTIV ADDRESS OF PROCESSOR CONTROLLER DATA BLOCK SENT IN DIAGNOSE INST. 0008 8 Address 4 PCSREQBK ADDRESS OF ACTIVE PCRBK 000C 12 Address 4 PCSTIADD ADDRESS OF TRQBK USED FOR PC TIMER INTERVAL 0010 16 Bitstring 1 PCSRQFLG PROCESSOR CONTROLLER REQUEST FLAG NOTES : ONLY THE CONDITION CODE 2 (PSWCOND2) DEFINITION IS USED BY PCSDIAGC. 00000000 PCSRQNON X'00' PCSRQNON NO VALID REQUESTS MADE YET 00000001 PCSRQFST X'01' PCSRQFST FIRST VALID REQUEST 000000FF PCSRQPST X'FF' PCSRQPST PAST FIRST VALID REQUEST 0011 17 Bitstring 1 PCSICC CONDITION CODE RESULTING FROM PC INTERFACE INSTRUCTION 11.. .... PSWASMSK X'C0' PSWASMSK ADDRESS SPACE CONTROL MASK 11.. .... PSWHMODE X'C0' PSWHMODE HOME-SPACE MODE 1... .... PSWSMODE X'80' PSWSMODE SECONDARY MODE .1.. .... PSWAMODE X'40' PSWAMODE ACCESS-REGISTER MODE ..11 .... PSWCOND X'30' PSWCOND PSW CONDITION CODE ..1. .... PSWCOND2 X'20' PSWCOND2 PSW CONDITION CODE BIT FOR CC=2,3 ...1 .... PSWCOND1 X'10' PSWCOND1 PSW CONDITION CODE BIT FOR CC=1,3 .... 1111 PSWPMSK X'0F' PSWPMSK FIXO+DECO+EXUN+SIGN PROGRAM MASK .... 1... PSWFIXO X'08' PSWFIXO FIXED-PT OVERFLOW INTRPT MASK .... .1.. PSWDECO X'04' PSWDECO DECIMAL OVERFLOW INTRPT MASK .... ..1. PSWEXUN X'02' PSWEXUN EXPONENT UNDERFLOW INTRPT MASK .... ...1 PSWSIGN X'01' PSWSIGN SIGNIFICANCE INTERRUPT MASK .... .... PSWPMODE X'00' PSWPMODE PRIMARY-SPACE MODE 0012 18 Bitstring 1 * Reserved for future IBM use 0013 19 Bitstring 1 PCSRPCIF REAL PROCESSOR CONTROLLER INTERFACES USED BY VM/XA FOR REAL REQUEST PROCESSING 1... .... SYSRSCIF X'80' SYSRSCIF SERVICE CALL TYPE INTERFACE .1.. .... SYSRDGIF X'40' SYSRDGIF DIAGNOSE X'80' TYPE INTERFACE 0014 20 Bitstring 1 PCSSTATS PROCESSOR CONTROLLER STATUS BITS 1... .... PCSSPDMC X'80' PCSSPDMC SERVICE PROCESSOR DAMAGE MACHINE CHECK HAS BEEN RECEIVED .1.. .... PCSLDISC X'40' PCSLDISC PROCESSOR CONTROLLER IS LOGICALLY DISCONNECTED FROM THE SYSTEM .... ..1. PCSINOPW X'02' PCSINOPW PC INTERRUPT HANDLER HAS OPENED A WINDOW TO ALLOW THE PC TIMER INTERRUPT TO HAVE PRIORITY OVER THE TIMEOUT INTERRUPT IN THE SITUATION WHERE THEY ARE BOTH RECEIVED AT THE SAME TIME .... ...1 PCSPRVRQ X'01' PCSPRVRQ ASSUMPTION IS MADE THAT THE PC IS BUSY FROM A PREVIOUS REQUEST ACTIVATED PRIOR TO THE IPL OF THIS SYSTEM 0015 21 Bitstring 1 PCSSTATE STATE(S) OF THE ACTIVE REQUEST 1... .... PCSXPEND X'80' PCSXPEND EXTERNAL INTERRUPT PENDING (PROCESSOR CONTROLLER WILL SIGNAL COMPLETION) .1.. .... PCSRSREQ X'40' PCSRSREQ ACTIVE REQUEST IS FOR A VIRTUAL SYSTEM WHICH HAS BEEN RESET ..1. .... PCSTOUT X'20' PCSTOUT TIMER INTERVAL HAS EXPIRED FOR ACTIVE REQUEST 0016 22 Bitstring 2 * RESERVED BY IBM FOR FUTURE USE 0018 24 Address 4 PCSREQST Address of first active PCRBK 001C 28 Address 4 PCSREQND Address of last active PCRBK 0020 32 Dbl-Word 8 PCSIOCPL (0) DOUBLE IOCP LOCKS 0020 32 Address 4 PCSIOCPW IOCP WRITE LOCK (BASE ADDRESS OF VMDBK CONFIGURATION ISSUING AN IOCP WRITE REQUEST) 0024 36 Address 4 PCSIOCPR IOCP READ LOCK (BASE ADDRESS OF VMDBK CONFIGURATION ISSUING AN IOCP READ REQUEST) 0028 40 Dbl-Word 8 * RESERVED FOR FUTURE IBM USE 0030 48 Bitstring 1 PCSDSIVL INDICATES WHEN A QUEUED REQUEST TO WRITE TO IOCDS DATASET HAS BEEN ACTIVATED AND THE DATA SET IS NOW OPEN (INVALID) 00000010 PCRIOCPW X'10' PCRIOCPW IOCP OPEN WRITE REQUEST STARTED; WHEN THIS REQUEST IS ACTIVATED SEND A MESSAGE THAT THAT THE IOCDS DATA SET WILL BE ALTERED (MARKED INVALID) 00000000 PCRNODS X'00' PCRNODS FLAG TO SHOW THAT NO IOCDS DATASET IS CURRENTLY BEING ALTERED NOTES : CODES DEFINED FOR PCRRPCIF BY HCPSYSCM SYSRPCIF 0031 49 Bitstring 1 PCSDSLVL DATASET LEVEL USED DURING AN IOCP READ OR WRITE SEQUENCE 0032 50 Bitstring 1 PCSFUNC Function code for READ IOCDS and READ IOCS 0033 51 Bitstring 1 * RESERVED BY IBM FOR FUTURE USE 0034 52 Signed 4 PCSBZT Top half of TOD when SERVC CC=2 00000007 PCSSIZE (*-PCSBK+7)/8 :SIZE OF BLOCK IN DOUBLEWORDS
PCSBK Storage Layout
*** PCSBK - PROCESSOR CONTROLLER STATUS BLOCK
*
* +---------------------------+---------------------------+
* 0 | PCSPCRQ | PCSACTIV |
* +---------------------------+---------------------------+
* 8 | PCSREQBK | PCSTIADD |
* +------+------+------+------+------+------+-------------+
* 10 |:RQFLG|PCSICC|//////|:RPCIF|:STATS|:STATE|/////////////|
* +------+------+------+------+------+------+-------------+
* 18 | PCSREQST | PCSREQND |
* +---------------------------+---------------------------+
* 20 | PCSIOCPW | PCSIOCPR |
* +---------------------------+---------------------------+
* 28 |///////////////////////////////////////////////////////|
* +------+------+------+------+---------------------------+
* 30 |:DSIVL|:DSLVL|:FUNC |//////| PCSBZT |
* +------+------+------+------+---------------------------+
* 38
*
*** PCSBK - PROCESSOR CONTROLLER STATUS BLOCK
PCSBK Cross Reference
Symbol Dspl Value -------------- ---- ----- PCRIOCPW 0030 00000010 PCRNODS 0030 00000000 PCSACTIV 0004 PCSBZT 0034 PCSDSIVL 0030 PCSDSLVL 0031 PCSFUNC 0032 PCSICC 0011 PCSINOPW 0014 02 PCSIOCPL 0020 PCSIOCPR 0024 PCSIOCPW 0020 PCSLDISC 0014 40 PCSPCRQ 0000 PCSPRVRQ 0014 01 PCSREQBK 0008 PCSREQND 001C PCSREQST 0018 PCSRPCIF 0013 PCSRQFLG 0010 PCSRQFST 0010 00000001 PCSRQNON 0010 00000000 PCSRQPST 0010 000000FF PCSRSREQ 0015 40 PCSSIZE 0034 00000007 PCSSPDMC 0014 80 PCSSTATE 0015 PCSSTATS 0014 PCSTIADD 000C PCSTOUT 0015 20 PCSXPEND 0015 80 PSWAMODE 0011 40 PSWASMSK 0011 C0 PSWCOND 0011 30 PSWCOND1 0011 10 PSWCOND2 0011 20 PSWDECO 0011 04 PSWEXUN 0011 02 PSWFIXO 0011 08 PSWHMODE 0011 C0 PSWPMODE 0011 00 PSWPMSK 0011 0F PSWSIGN 0011 01 PSWSMODE 0011 80 SYSRDGIF 0013 40 SYSRSCIF 0013 80
Copyright IBM Corporation, 1990, 2011