z/VM: CP Commands and Utilities Reference - z/VM - IBM

EXTERNAL
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EXTernal
Authorization
Purpose
Operands
KEY
INTerval
CALL
EMERGency
MALFunction
code
cpuaddr
CR0 bitno CMD
Privilege Class: G
command
Use EXTERNAL to simulate external-interrupt-pending to your virtual machine.
Note: The virtual machine takes immediate control.
KEY
identifies the operator external interrupt key. KEY is the default.
INTerval
identifies the interval timer at location 80. You can specify INTERVAL only if the
370 Accommodation facility is active. Use the CP SET 370ACCOM ON
command to activate the 370 Accommodation facility. When you specify
INTERVAL, an interval timer interrupt is made pending.
CALL
identifies an external call SIGP signal from the specified virtual processor
address and is accepted only when no external call is already pending.
EMERGency
identifies an emergency signal from the specified virtual processor address.
MALFunction
identifies a malfunction alert signal from the specified virtual processor address.
cpuaddr
identifies a virtual processor address from 0 to 3F (hexadecimal).
code
identifies an external interrupt code.
EXTERNAL
CR0 bitno
indicates that a mask bit in CR0 (control register 0) is to be applied to this
interrupt. The operand bitno is the bit number in CR0 that masks this interrupt;
it is a decimal number from 16 to 31. For an ESA/390 virtual machine,
specifying 16-31 refers to the masks in bits 16-31 of control register 0. For a
z/Architecture mode virtual machine, specifying 16-31 refers to the
corresponding masks that are in bits 48-63 of control register 0.
CMD command
indicates that a CP command is to be issued when the interrupt is reflected.
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Chapter 2. CP Commands 433