CP Module Entry Point Directory I I I Module Entry I I Name Points Attributes, Function I DMKVIO DMKVMA DMKVMC DMKVMI DMKVSI DMKVSP DMKVIOC1 DMKVIOIN DMKVIOMK DMKVMASH DMKVMASW DMKVMCFC DMKVMCEX DMKVMCVA DMKVMIPL DMKVSIEX DMKVSISC Resident. Records and translates the interrupts and status
associated with virtual I/O operations.
Reflects condition code 1 CSW status.
Translate a virtual I/O interruption.
Address of a table of interruption masks,
indexable by device address.
Resident.
Checks all protected shared pages associated with
shared named systems and determines if they have
been changed. If they were changed, the page is
returned to CP free storage and the condition
code is made nonzero. Switches the user's segment table entries from
one protected shared page table to the other.
Pageable. Main entry for all VMCF subfunctions. Called by DMKHVC when a DIAGNOSE X'0068' instruction is
executed. Builds a VMCBLOK with information from
user-supplied parameter list, validates the
subfunction code, and passes control to
appropriate VMCF subroutine.
Called by DMKDSP to reflect the VMCF external
interrupt message header and optional SENDX data
to a virtual machine. Copies the message header from the VMCBLOK to the user's external interrupt
buffer. If interrupt is for a SENDX request, move SENDX data to the optional area in the external
interrupt buffer.
Branched to from the DMKVKCFC entry point or
called by DMKCFP during a system reset. Releases
the master VMCBLOK and any final response VMCBLOKs (VMCRESP bit). Returns other VMCELOKs to
the original SOURCE users with the notification
that this user is not available.
Pageable.
Loaded into the user's virtual storage wben
invoked. Performs an IPL of a virtual machine. Simulates a user's IPL sequence.
Resident. Simulates the operation of privileged I/O instructions issued by virtual machines. Simulates a SIO, TIO, HIO, TCH, or CLCH. Scans a V=R channel program for exceptional
conditions, such as sense commands, no-ops, I/O to and from page 0, etc., without actually
translating the program.
Resident. Simulates all user SIOs to a virtual unit record
device (real reader, punch, print, or pseudo
timer that is spooled rather than dedicated. It
also handles control program requests to print on
the user's virtual printer. L- ____________________________________________________ CP Directories 1-255

CP Module Entry Point Directory I I Module I Name ,. DI1KWRM Entry
Points DMKVSPCO DMKVSPCP DMKVSPCR DMKVSPEX DMKVSPRT DMKVSPTO DMKVSPVP DMKVSPWA DMKWRMST Attributes, Function
stops processing the file currently in the
spooled printer or punch and clears all pending
status from the spooled printer or punch.
Writes a print line to the console.
stops, processing the file currently in the
spooled card reader and clears all pending status
from the spooled card reader. Simulates SIO to a spooled unit record device. Puts a CP-generated line on the user's spooled
printer.
Checks if the virtual reader is empty. Simulates SIO to a spooled virtual console.
Nonexecutable index work area for 2311.
Pageable. Warm start processing. Retrieves the system log
aessages, accounting cards, spool file blocks,
and spooling allocation records from the warm start cylinder on the IPt pack.
1-256 IBM VM/310 System Logic and Problem Determination--Voluae 1