SVC, SVCE, and SVCR trace entries

These trace entries represent a supervisor event:

An SVC trace entry is for processing of a Supervisor Call (SVC) instruction
An SVCE trace entry is for an error during processing of an SVC instruction
An SVCR trace entry is for return from SVC instruction processing

 PR ASID TCB-ADDR  IDENT CD/D PSW----- ADDRESS- UNIQUE-1 UNIQUE-2 UNIQUE-3  PSACLHS- PSALOCAL PASD SASD TIMESTAMP-RECORD  CP
                                                UNIQUE-4 UNIQUE-5 UNIQUE-6

 pr home tcb-addr  SVC  code svc-old- pswaddr-  gpr15--- gpr0---- gpr1----                              timestamp-------  02
                             svc-old- pswctrl- 

 pr home tcb-addr  SVCE code svc-old- pswaddr-  gpr15--- gpr0---- gpr1---- psaclhs-  psalocal pasd sasd timestamp-------  02
                             svc-old- pswctrl-  env-data                   psaclhse-

 pr home tcb-addr  SVCR code ret-new- pswaddr-  gpr15--- gpr0---- gpr1----                              timestamp-------  02 
                             ret-new- pswctrl-

PR

pr: Identifier of the processor that produced the TTE.

ASID

home: Home address space identifier (ASID) associated with the TTE.

TCB-ADDR

tcb-addr: Address of the task control block (TCB) for the current task or the work element block (WEB).

IDENT

The TTE identifier, as follows. An asterisk before SVC, SVCE, or SVCR indicates that the SVC is for an abend (SVC D) and the abend is not for a normal end of task, that is, bit X'08' in the leftmost byte of register 1 (in the UNIQUE-3 column) is not on.

SVC: Supervisor call (SVC) interruption
SVCE: SVC error
SVCR: SVC return

CD/D

code:

For SVC and SVCE, and for SVCR when not X'FFxx': SVC number.
For SVCR when X'FF00': completion of the system-initiated processing involved with ATTACH, LINK, SYNCH, or XCTL processing before the target routine getting control.
For SVCR when X'FF01': initial system-initiated processing involved with XCTL processing prior to the target routine getting control.

PSW----- ADDRESS-

The z/Architecture® 128-bit old PSW, which appears on two lines:

pswaddr: Two words, containing the 64-bit address portion of the PSW
pswctrl: Two words, containing the 64-bit "control" portion of the PSW

The contents of this field varies, depending on the type of supervisor event and the value of code:

ret-new- pswaddr / ret-new- pswctrl:
- For SVC and SVCE, and for SVCR when code is not X'FFxx': Program status word (PSW) to receive control when the SVC is dispatched again.
- For SVCR when code is X'FF00': PSW of the target routine that will get control as a result of ATTACH, LINK, SYNCH, or XCTL processing.
- For SVCR when X'FF01': PSW of a system routine that will get control as a result of initial system processing involved with XCTL.
svc-old- pswaddr / svc-old- pswctrl: SVC old PSW

UNIQUE-1/UNIQUE-2/UNIQUE-3

UNIQUE-4/UNIQUE-5/UNIQUE-6

gpr15--- gpr0---- gpr1----: General registers 15, 0, and 1

env-data: Characteristics of failing environment. One of the following values:

00000004 - issuer of SVC was in SRB mode
00000008 - issuer of SVC was locked
0000000C - issuer of SVC was disabled
00000010 - issuer of SVC was in cross memory mode
00000014 - issuer of SVC was in EUT FRR mode
00000018 - issuer of SVC was in AR mode

PSACLHS-

psaclhs-: For SVCE, string for the current lock held, from the PSACLHS field of the PSA. This field will contain descriptive text for some SVC trace entries. The descriptive text will not appear in SNAP, SYSUDUMP, or SYSABEND output.

PSACLHSE-

psaclhse-: For SVCE, extended string for the current lock held, from the PSACLHSE field of the PSA.

PSALOCAL

psalocal: For SVCE, locally locked address space indicator, from the PSALOCAL field of the PSA. This field will contain descriptive text for some SVC trace entries. The descriptive text will not appear in SNAP, SYSUDUMP, or SYSABEND output.

PASD

pasd: Primary ASID (PASID) at trace entry. This field will contain descriptive text for some SVC trace entries. The descriptive text will not appear in SNAP, SYSUDUMP, or SYSABEND output.

SASD

sasd: Secondary ASID (SASID) at trace entry. This field will contain descriptive text for some SVC trace entries. The descriptive text will not appear in SNAP, SYSUDUMP, or SYSABEND output.

TIMESTAMP-RECORD

timestamp-------: Time-of-day (TOD) clock value when system trace created the trace entry. The value is in the same format as the time stamp on the logrec data set records.

CP

The CP column contains 2 hex digits of the processor model dependent information, which is intended to identify the physical CP that made the trace entry. CP is only provided when formatting SYSTRACE under IPCS. CP is not provided for SYSUDUMP, SYSABEND, or SNAP.