..... "'l d H CD 1.0 n I'd n 0 r+ H 0 ...... t;x:j ...... 0 C'l !;tI CD ...... PI r+ ..... I'd 0 PI H rn r+ t:r' ..... - I'd rn to tD t:r' d "'l "'l ..... "'l C ..... r+ t:r' <S tJ: " W ..,J 0 U1 ... PSA (Prefix Storage ------ ACORETBL DMKPTR
( DMKPTRF1 __ ,\ . __ __ DMKPTRU1 CORFPNT CORBPNT DMKPTRFL _ 1------ CORFPNT - ....--- 1-------- CORSWPNT··· CORPGPNT .-----4---- IOBFPNT IOBBPNT TREXT VMBLOK VMOBPNT ECBLOK V R
RB LO K ... T_R_O_B_L_O_K ..... VCONCTL SHADOWN';HADOW PAGTABLE IOBLOK VSPSFBLK -.... IOBLINK I- ... .- TRQBLOK CON,.'K
2. Value of VMRSTAT -i'80'- X'40' X'20' X' 10' X'08' X'04' X'02' X' 01' comments wiIting- executing console function Waiting page operation Waiting -- scheduled IOBLOK start Waiting -- virtual PSi wait state Waiting -- instruction simulation User not yet logged on User logging off Virtual machine in idle wait state
The virtual machine dispatching status is
(displacement X'59'). The value of this
dispatching status:
contained in VftDSTAT field indicates the Value of VMDSTAT --xtSO'- X'40' X'20' X'10' X'08' X'04' X'02' X' 01' £oml!!!nt§ Virtual machine is dispatched RUN USER Virtual machine is compute bound Virtual machine in-queue time slice end Virtual machine in TIO/SIO busy loop Virtual machine runnable Virtual machine in a queue Virtual machine in eligible list
Reflect an external interrupt to a virtual machine
3. Examine the virtual PSW and the last virtual machine privileged
instruction. The virtual machine PSi is saved in VftPSW (displacement X'A8') and the virtual machine privileged or tracing
instruction is saved in VftINST (displacement X'98'). 4. Find the name of the last CP command that executed in VftCOftND (displacement X'148'). 5. Check the status of I/O activity,.
pertinent information.
The following fields contain
a. VMPEND (displacement X'63') contains
summary flag. The value of VMPEND interrupt.
the interrupt pending
identifies the type of Value of VMPEND --i'80'- X'40' X'20' X' 10' x'08' X'02' X'Ol' Comments Deferred task waiting for system lock
(attached processor mode) Virtual PER (program Event Recording)
interrupt pending Virtual program interrupt deferred Virtual SVC interrupt deferred Virtual pseudo page fault pending Virtual I/O interrupt pending Virtual external interrupt pending
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