Circuit arrangement capable of improving overhead of a control p

Details Circuit arrangement capable of improving overhead of a control p Circuit arrangement capable of improving overhead of a control p

1986-04-04

1988-08-16

Chan, Eddie P.

Boots, shoes, and leggings

G06F 946

Patent

active

047648643

ABSTRACT:
In an arrangement for use in a virtual machine operable in accordance with a plurality of operating systems, hardware circuits, such as a judging circuit (36) and an interruption reception circuit (31), monitor reception of an interruption request and the accompanying interruption information. The interruption information is transferred from a first holding area (11) to a second one (12) under control of a control program when the interruption request can not be received by one of the operating systems in question. Transfer of the interruption information results in production of a pseudo interruption signal PI from a controller (22). When the one operating system can receive the pseudo interruption request, the judging circuit starts either the control program or an interruption processing program of the one operating system in consideration of internal states of the first and second holding areas.

REFERENCES:
patent: 4400769 (1983-08-01), Kaneda et al.
patent: 4459661 (1984-07-01), Kaneda et al.
IBM Systems Journal "Virtual Storage And Virtual Machine Concepts" pp. 99-130 of vol. Eleven, No. 2, 1972.

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