Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
UZPAG
Control Block Contents
UZPAG DSECT
Cross Reference (Contains links to field and bit definitions)
UZPAG Prolog
NAME : HCPUZPAG DESCRIPTION: PREFIX STORAGE AREA - MACHINE USAGE DSECT : UZPAG FUNCTION : THIS CONTROL BLOCK DESCRIBES THE ARCHITECTED FIELDS IN PAGE ZERO (EITHER REAL ZERO OR ABSOLUTE ZERO DEPENDING ON USAGE). THIS IS USED TO REFER TO GUEST PAGE ZERO. FOR HOST PAGE ZERO, THE PFXBK COPY FILE IS USED INSTEAD OF UZPAG. LOCATED BY : VMDPAGZP (WHILE NOT IN CONSOLE FUNCTION MODE) - HOST REAL ADDRESS OF THE GUEST PAGE ZERO CREATED BY : NOT APPLICABLE (CREATE AS A FUNCTION OF THE GUEST OPERATING SYSTEM DELETED BY : NOT APPLICABLE RELOCATION CONSIDERATIONS : None Notes : This copy file can be used to map the architected fields of the guest Prefix Storage Area for z/Arch and page zero for System/370 and ESA/390 guests. For z/Arch guests the PSA is 8K, that is, two contiguous pages in guest storage (but not necessarily contiguous in host storage). UZPAG - Maps page zero for 370 guests. Maps page zero for ESA guests. Maps page zero (1st page) of the 2 page z/Arch Prefix Storage Area UOPAG - Maps page one (2nd page) of the 2 page z/Arch Prefix Storage Area
UZPAG Control Block Content
UZPAG DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure UZPAG PREFIX STORAGE AREA - MACHINE USAGE 0000 0 Dbl-Word 8 UZPIPSW (0) IPL START PSW 0000 0 Signed 4 UZPIPSW0 (0) 0000 0 Bitstring 1 UZPIP1B0 0001 1 Bitstring 1 UZPIP1B1 EXTENDED MODE 0002 2 Signed 2 UZPIP1H1 IPL DEVICE ADDRESS 0004 4 Signed 4 UZPIPSW1 (ALSO RESTART NEW PSW) 0008 8 Dbl-Word 8 UZPICCW1 IPL CCW, FIRST (ALSO RESTART OLD PSW) 0010 16 Dbl-Word 8 UZPICCW2 IPL CCW, SECOND 0018 24 Dbl-Word 8 UZPEXTOP EXTERNAL OLD PSW 0020 32 Dbl-Word 8 UZPSVCOP SVC OLD PSW 0028 40 Dbl-Word 8 UZPPRGOP PROGRAM OLD PSW 0030 48 Dbl-Word 8 UZPMCHOP MACHINE-CHECK OLD PSW 0038 56 Dbl-Word 8 UZPIOOP INPUT/OUTPUT OLD PSW 0040 64 Dbl-Word 8 UZPCSW (0) CHANNEL STATUS WORD 0040 64 Signed 4 UZPCSWF0 KEY AND ADDRESS OF FULL CSW 0044 68 Signed 4 UZPCSWF1 (0) 2ND FULLWORD OF CSW 0044 68 Signed 2 UZPCSWH (0) HALFWORD CSW 0044 68 Bitstring 1 UZPCSWB4 5TH BYTE OF CSW 0045 69 Bitstring 1 UZPCSWB5 6TH BYTE OF CSW 0046 70 Bitstring 1 UZPCSWB6 COUNT FIELD OF FULL CSW 0047 71 Bitstring 1 UZPCSWB7 COUNT FIELD OF FULL CSW 0048 72 Signed 4 UZPCAW CHANNEL ADDRESS WORD 004C 76 Signed 4 * NOT REFERENCED 0050 80 Signed 4 UZPTIMER INTERVAL TIMER 0054 84 Signed 4 UZPETTHD EXT. FACIL. TRACE TABLE HDR 0058 88 Dbl-Word 8 UZPEXTNP EXTERNAL NEW PSW 0060 96 Dbl-Word 8 UZPSVCNP SVC NEW PSW 0068 104 Dbl-Word 8 UZPPRGNP PROGRAM NEW PSW 0070 112 Dbl-Word 8 UZPMCHNP MACHINE-CHECK NEW PSW 0078 120 Dbl-Word 8 UZPIONP INPUT/OUTPUT NEW PSW 0080 128 Signed 4 UZPEXMSF MSF DATA BLOCK ADDR-CLASS 21 EXT 0084 132 Signed 4 UZPEXTCD (0) EXTERNAL INTERRUPT CODE,FULLWORD 0084 132 Signed 2 UZPEXTCA EXTERNAL IRPT. CPU ADDRESS 0086 134 Signed 2 UZPEXINT EXTERNAL INTERRUPT CODE,HALFWORD 0088 136 Signed 2 UZPSVCIL SVC INSTRUCTION LENGTH CODE 008A 138 Signed 2 UZPSVCNT SVC INTERRUPT CODE 008C 140 Signed 4 UZPPRGCD (0) PROGRAM ILC AND INTERRUPT CODE 008C 140 Signed 2 UZPPRGIL PROGRAM INSTRUCTION LENGTH CODE 008E 142 Signed 2 UZPRGINT PROGRAM INTERRUPT CODE 0090 144 Signed 4 UZPTRXAD (0) TRANSLATION EXCEPTION ADDRESS 0090 144 Bitstring 1 UZPSSCTL Space-switch event control 1... .... UZPSSON X'80' UZPSSON Space-switch control bit 0091 145 Bitstring 1 UZPSSCT2 When a space switch program interrupt occurs, the space- switch event control bit is saved in the high order bit of UZPSSCTL. The remaining bits of UZPSSCTL and UZPSSCT2 are set to 0. 0092 146 Signed 2 UZPOPASN Old PASN - set for space-switch event program interrupt. 0090 144 Signed 4 UZPFPARM (0) Data exception information 0090 144 Bitstring 3 * 0093 147 Bitstring 1 UZPDXCOD Data exception code 0094 148 Signed 2 UZPMNCLS MONITOR CLASS 0096 150 Signed 2 UZPPERCD PROGRAM EVENT RECORDER(PER) CODE 0098 152 Dbl-Word 8 UZPGPERA (0) PER Address for z/Arch PSA 0098 152 Signed 4 UZPPERAD PER ADDRESS 009C 156 Signed 4 UZPMONID MONITOR CODE 00A0 160 Bitstring 1 UZPXCPAR EXCEPTION ACCESS IDENTIFICATION ..1. .... PRGXCPRI X'20' PRGXCPRI Primary-tran problem (not Access Register related) ...1 .... PRGXCSEC X'10' PRGXCSEC Secondary-tran problem (not Access Register related) .... 1111 PRGXCREG X'0F' PRGXCREG Access-register number Maximum number of real processors .1.. .... MAXRPROC 64 MAXRPROC Maximum number of real processors supported by certain internal data structures ..11 1111 MAXCPUAD 63 MAXCPUAD Maximum CPU address supported 00A1 161 Bitstring 1 UZPPERAR PER ACCESS IDENTIFICATION 00A2 162 Bitstring 1 UZPOPRID Operand access identification 00A3 163 Bitstring 1 UZPARCHM Processor architecture mode .... ...1 UZPAINME X'01' UZPAINME Bit 7: 0 = ESA/390, 1 = z/Arch Architecture mode is in the SARCH condition code 00A4 164 Signed 4 UZPMAPL Control block for Ext. Facility 00A8 168 Signed 4 UZPFALET (0) Used to contain the ALET that caused a translation exception. 00A8 168 Dbl-Word 8 UZPGTRAD (0) z/Arch: Translation-exception ID 00A8 168 Signed 4 UZPGTRAH Trans-execpt ID high half 00AC 172 Signed 4 UZPGTRAL Trans-execpt ID low half 00B0 176 Dbl-Word 8 UZPGMNCD (0) z/Arch: monitor code 00B0 176 Signed 4 UZPECSWL LIMITED CHANNEL LOGOUT (ECSW) 00B4 180 Signed 4 * z/Arch: low ord word monitor code 00B8 184 Signed 4 UZPIOSID (0) 370/XA I/O INTERRUPT SUBSYS ID 00B8 184 Bitstring 1 * 370: UNUSED, 370/XA: ZERO 00B9 185 Bitstring 1 UZPIOQCT 370: QUEUED I/O COUNT, 370/XA:01 00BA 186 Signed 2 UZPIODEV 370: DEVICE ADDRESS, 370/XA: SUBCHANNEL NUMBER 00BC 188 Signed 4 UZPINTPM 370/XA I/O INTERRUPTION PARM 00C0 192 Signed 4 UZPHIIDW Host Interruption Identification Word 00C4 196 Signed 4 * Reserved for IBM use 00C8 200 Signed 4 UZPSTFL (0) STFL Facility List 00C8 200 Bitstring 1 UZPSTFL0 Byte 0, bits 0-7 of STFL List 1... .... STFL0N3A X'80' STFL0N3A "N3" instructions available .1.. .... STFL0MEA X'40' STFL0MEA zArch available ..1. .... STFL0MEE X'20' STFL0MEE zArch enabled ...1 .... STFL0IDT X'10' STFL0IDT IDTE is installed .... 1... STFL0ICS X'08' STFL0ICS IDTE performs the Invalidation-and- Clearing operation selectively when STE(s) are invalidated. IDTE also performs the Clearing-by-ASCE function selectively. In both cases, "selectively" means the TLB purging is limited to those specific entries required by architecture. If this bit is off, IDTE simply purges all TLBs. If this bit is on, STFL0IDT is also on. .... .1.. STFL0ICR X'04' STFL0ICR IDTE performs the Invalidation-and- Clearing operation selectively when RTE(s) are invalidated. "Selectively" means the TLB purging is limited to those specific entries required by architecture. If this bit is off, IDTE Invalidation-and-Clearing of RTE(s) simply purges all TLBs. If this bit is on, STFL0IDT and STFL0ICS are also on. .... ..1. STFL0ALR X'02' STFL0ALR ASN-and-LX-reuse facility installed .... ...1 STFL0FLE X'01' STFL0FLE STFLE facility installed 00C9 201 Bitstring 1 UZPSTFL1 Byte 1, bits 8-15 of STFL List 00CA 202 Bitstring 1 UZPSTFL2 Byte 2, bits 16-23 of STFL List 00CB 203 Bitstring 1 UZPSTFL3 Byte 3, bits 24-31 of STFL List 00CC 204 Signed 4 * Reserved for IBM use 00D0 208 Signed 4 * Reserved for IBM use 00D4 212 Signed 4 UZPFPXSA Extended-save-area address 00D8 216 Dbl-Word 8 UZPMCPUT CPU TIMER LOGOUT 00E0 224 Dbl-Word 8 UZPCKCMP TOD COMPARATOR LOGOUT ON MACHINE 00E8 232 Dbl-Word 8 UZPMCIC MACHINE-CHECK INTERRUPT CODE 111. 1... UZPMCI01 00002 UZPMCIC,2 OVLY FOR FIRST TWO BYTES OF MCIC 00F0 240 Signed 4 UZPMCHCW MACHINE CHECK CHAN. REPORT WORD 00F4 244 Signed 4 UZPEDMGC EXTERNAL DAMAGE CODE 00F8 248 Dbl-Word 8 UZPGMCFS (0) z/Arch: machine chk failing addr 00F8 248 Signed 4 UZPMCHFS MACHINE CHECK FAILING STOR. ADDR 00FC 252 Signed 4 UZPMCHRC MACHINE CHECK REGION CODE 0100 256 Bitstring 96 UZPFCLOG (0) GUEST FULL CHANNEL LOGOUT 0100 256 Bitstring 96 UZPFXLOG (0) MACHINE CHECK FIXED LOGOUT AREA 0100 256 Dbl-Word 8 UZPMCHFA (0) MACHINE-CHECK FAILING-STORAGE ASIT 0100 256 Dbl-Word 8 UZPSTPSW STORE STATUS PSW LOGOUT AREA 0108 264 Signed 4 UZPSTPFX STORE STATUS PREFIX LOGOOUT AREA 010C 268 Signed 4 UZPSTMDL STORE STATUS MODEL DEPENDENT 0110 272 Dbl-Word 8 UZPBEAR Breaking-Event Address 0118 280 Dbl-Word 8 UZPFXLGM REMAINDER OF FIXED LOGOUT AREA 0120 288 Signed 4 UZPARLOG (16) ACCESS REGISTER LOGOUT AREA 0160 352 Dbl-Word 8 UZPFPRLG (4) FLOATING POINT REG. LOGOUT AREA 0180 384 Signed 4 UZPGPRLG (16) GENERAL REGISTER LOGOUT AREA 01C0 448 Signed 4 UZPCRLOG (16) CONTROL REGISTER LOGOUT AREA 00000200 UZPLAP *-UZPAG LIMIT OF LOW ADDRESS PROTECTION z/Arch Old and New PSW locations. Note that they are below the 512 byte line and therefore protected by LAP (UZPLAP). 0120 288 Bitstring 16 UZPGRSOP z/Arch Restart Old PSW 0130 304 Bitstring 16 UZPGEXOP z/Arch External Old PSW 0140 320 Bitstring 16 UZPGSVOP z/Arch SVC Old PSW 0150 336 Bitstring 16 UZPGPROP z/Arch Program Old PSW 0160 352 Bitstring 16 UZPGMCOP z/Arch Machine Check Old PSW 0170 368 Bitstring 16 UZPGIOOP z/Arch I/O Old PSW 0180 384 Bitstring 32 * Reserved for Hardware use 01A0 416 Bitstring 16 UZPGRSNP z/Arch Restart New PSW 01B0 432 Bitstring 16 UZPGEXNP z/Arch External New PSW 01C0 448 Bitstring 16 UZPGSVNP z/Arch SVC New PSW 01D0 464 Bitstring 16 UZPGPRNP z/Arch Program New PSW 01E0 480 Bitstring 16 UZPGMCNP z/Arch Machine Check New PSW 01F0 496 Bitstring 16 UZPGIONP z/Arch I/O New PSW The following fields are S/370 fields which were in the same place that the translation exception ID field is in a z/Arch mode guest. 00A8 168 Signed 4 UZPCHIDC CHANNEL IDENTIFIER FROM 'STIDC' 00AC 172 Signed 4 UZPIOELA I/O EXTENDED LOGOUT AREA POINTER FIELDS ABOVE ADDRESS 512 ARE NOT SPECIFIED BY PROCESSOR ARCHITECTURE.
UZPAG Storage Layout
*** UZPAG - PREFIX STORAGE AREA - MACHINE USAGE * * +------+------+-------------+---------------------------+ * 0 |:IP1B0|:IP1B1| UZPIP1H1 | UZPIPSW1 | * +------+------+-------------+---------------------------+ * 8 | UZPICCW1 | * +-------------------------------------------------------+ * 10 | UZPICCW2 | * +-------------------------------------------------------+ * 18 | UZPEXTOP | * +-------------------------------------------------------+ * 20 | UZPSVCOP | * +-------------------------------------------------------+ * 28 | UZPPRGOP | * +-------------------------------------------------------+ * 30 | UZPMCHOP | * +-------------------------------------------------------+ * 38 | UZPIOOP | * +---------------------------+------+------+------+------+ * 40 | UZPCSWF0 |:CSWB4|:CSWB5|:CSWB6|:CSWB7| * +---------------------------+------+------+------+------+ * 48 | UZPCAW |///////////////////////////| * +---------------------------+---------------------------+ * 50 | UZPTIMER | UZPETTHD | * +---------------------------+---------------------------+ * 58 | UZPEXTNP | * +-------------------------------------------------------+ * 60 | UZPSVCNP | * +-------------------------------------------------------+ * 68 | UZPPRGNP | * +-------------------------------------------------------+ * 70 | UZPMCHNP | * +-------------------------------------------------------+ * 78 | UZPIONP | * +---------------------------+-------------+-------------+ * 80 | UZPEXMSF | UZPEXTCA | UZPEXINT | * +-------------+-------------+-------------+-------------+ * 88 | UZPSVCIL | UZPSVCNT | UZPPRGIL | UZPRGINT | * +------+------+-------------+-------------+-------------+ * 90 |:SSCTL|:SSCT2| UZPOPASN | 94 * +------+------+-------------+ * *** UZPAG - PREFIX STORAGE AREA - MACHINE USAGE *** Overlay for UZPTRXAD in UZPAG * * +--------------------+------+-------------+-------------+ * 90 |////////////////////|:DXCOD| UZPMNCLS | UZPPERCD | * +--------------------+------+-------------+-------------+ * 98 | UZPPERAD | UZPMONID | * +------+------+------+------+---------------------------+ * A0 |:XCPAR|:PERAR|:OPRID|:ARCHM| UZPMAPL | * +------+------+------+------+---------------------------+ * A8 | UZPGTRAH | UZPGTRAL | * +---------------------------+---------------------------+ * B0 | UZPECSWL |///////////////////////////| * +------+------+-------------+---------------------------+ * B8 |//////|:IOQCT| UZPIODEV | UZPINTPM | * +------+------+-------------+---------------------------+ * C0 | UZPHIIDW |///////////////////////////| * +------+------+------+------+---------------------------+ * C8 |:STFL0|:STFL1|:STFL2|:STFL3|///////////////////////////| * +------+------+------+------+---------------------------+ * D0 |///////////////////////////| UZPFPXSA | * +---------------------------+---------------------------+ * D8 | UZPMCPUT | * +-------------------------------------------------------+ * E0 | UZPCKCMP | * +-------------------------------------------------------+ * E8 | UZPMCIC | * +---------------------------+---------------------------+ * F0 | UZPMCHCW | UZPEDMGC | * +---------------------------+---------------------------+ * F8 | UZPMCHFS | UZPMCHRC | * +---------------------------+---------------------------+ * 100 | UZPSTPSW | * +---------------------------+---------------------------+ * 108 | UZPSTPFX | UZPSTMDL | * +---------------------------+---------------------------+ * 110 | UZPBEAR | * +-------------------------------------------------------+ * 118 | UZPFXLGM | * +-------------------------------------------------------+ * 120 | | * = UZPARLOG = * | | * +-------------------------------------------------------+ * 160 | | * = UZPFPRLG = * | | * +-------------------------------------------------------+ * 180 | | * = UZPGPRLG = * | | * +-------------------------------------------------------+ * 1C0 | | * = UZPCRLOG = * | | * +-------------------------------------------------------+ * 200 * *** Overlay for UZPTRXAD in UZPAG *** Overlay for UZPARLOG in UZPAG * * +-------------------------------------------------------+ * 120 | UZPGRSOP | * | | * +-------------------------------------------------------+ * 130 | UZPGEXOP | * | | * +-------------------------------------------------------+ * 140 | UZPGSVOP | * | | * +-------------------------------------------------------+ * 150 | UZPGPROP | * | | * +-------------------------------------------------------+ * 160 | UZPGMCOP | * | | * +-------------------------------------------------------+ * 170 | UZPGIOOP | * | | * +-------------------------------------------------------+ * 180 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 1A0 | UZPGRSNP | * | | * +-------------------------------------------------------+ * 1B0 | UZPGEXNP | * | | * +-------------------------------------------------------+ * 1C0 | UZPGSVNP | * | | * +-------------------------------------------------------+ * 1D0 | UZPGPRNP | * | | * +-------------------------------------------------------+ * 1E0 | UZPGMCNP | * | | * +-------------------------------------------------------+ * 1F0 | UZPGIONP | * | | * +-------------------------------------------------------+ * 200 * *** Overlay for UZPARLOG in UZPAG *** Overlay for UZPGTRAD in UZPAG * * +---------------------------+---------------------------+ * A8 | UZPCHIDC | UZPIOELA | * +---------------------------+---------------------------+ * B0 * *** Overlay for UZPGTRAD in UZPAG
UZPAG Cross Reference
Symbol Dspl Value -------------- ---- ----- MAXCPUAD 00A0 3F MAXRPROC 00A0 40 PRGXCPRI 00A0 20 PRGXCREG 00A0 0F PRGXCSEC 00A0 10 STFL0ALR 00C8 02 STFL0FLE 00C8 01 STFL0ICR 00C8 04 STFL0ICS 00C8 08 STFL0IDT 00C8 10 STFL0MEA 00C8 40 STFL0MEE 00C8 20 STFL0N3A 00C8 80 UZPAINME 00A3 01 UZPARCHM 00A3 UZPARLOG 0120 UZPBEAR 0110 UZPCAW 0048 UZPCHIDC 00A8 UZPCKCMP 00E0 UZPCRLOG 01C0 UZPCSW 0040 UZPCSWB4 0044 UZPCSWB5 0045 UZPCSWB6 0046 UZPCSWB7 0047 UZPCSWF0 0040 UZPCSWF1 0044 UZPCSWH 0044 UZPDXCOD 0093 UZPECSWL 00B0 UZPEDMGC 00F4 UZPETTHD 0054 UZPEXINT 0086 UZPEXMSF 0080 UZPEXTCA 0084 UZPEXTCD 0084 UZPEXTNP 0058 UZPEXTOP 0018 UZPFALET 00A8 UZPFCLOG 0100 UZPFPARM 0090 UZPFPRLG 0160 UZPFPXSA 00D4 UZPFXLGM 0118 UZPFXLOG 0100 UZPGEXNP 01B0 UZPGEXOP 0130 UZPGIONP 01F0 UZPGIOOP 0170 UZPGMCFS 00F8 UZPGMCNP 01E0 UZPGMCOP 0160 UZPGMNCD 00B0 UZPGPERA 0098 UZPGPRLG 0180 UZPGPRNP 01D0 UZPGPROP 0150 UZPGRSNP 01A0 UZPGRSOP 0120 UZPGSVNP 01C0 UZPGSVOP 0140 UZPGTRAD 00A8 UZPGTRAH 00A8 UZPGTRAL 00AC UZPHIIDW 00C0 UZPICCW1 0008 UZPICCW2 0010 UZPINTPM 00BC UZPIODEV 00BA UZPIOELA 00AC UZPIONP 0078 UZPIOOP 0038 UZPIOQCT 00B9 UZPIOSID 00B8 UZPIPSW 0000 UZPIPSW0 0000 UZPIPSW1 0004 UZPIP1B0 0000 UZPIP1B1 0001 UZPIP1H1 0002 UZPLAP 01C0 00000200 UZPMAPL 00A4 UZPMCHCW 00F0 UZPMCHFA 0100 UZPMCHFS 00F8 UZPMCHNP 0070 UZPMCHOP 0030 UZPMCHRC 00FC UZPMCIC 00E8 UZPMCI01 00E8 E8 UZPMCPUT 00D8 UZPMNCLS 0094 UZPMONID 009C UZPOPASN 0092 UZPOPRID 00A2 UZPPERAD 0098 UZPPERAR 00A1 UZPPERCD 0096 UZPPRGCD 008C UZPPRGIL 008C UZPPRGNP 0068 UZPPRGOP 0028 UZPRGINT 008E UZPSSCTL 0090 UZPSSCT2 0091 UZPSSON 0090 80 UZPSTFL 00C8 UZPSTFL0 00C8 UZPSTFL1 00C9 UZPSTFL2 00CA UZPSTFL3 00CB UZPSTMDL 010C UZPSTPFX 0108 UZPSTPSW 0100 UZPSVCIL 0088 UZPSVCNP 0060 UZPSVCNT 008A UZPSVCOP 0020 UZPTIMER 0050 UZPTRXAD 0090 UZPXCPAR 00A0
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