Virtual machine I/O interrupt control method compares number of

Details Virtual machine I/O interrupt control method compares number of Virtual machine I/O interrupt control method compares number of

1993-12-14

1996-04-09

Harrell, Robert B.

395733, G06F 1516

Patent

active

055069754

ABSTRACT:
A virtual machine system controls the operation of a plurality of virtual machines on a single computer and permits the computer to be switched from one virtual machine to another for carrying out urgent input/output operations. The decision to switch from an operating virtual machine to one of a plurality of other non-operating virtual machines is based on examining the number of input/output interrupt conditions that occur for each virtual machine other than the running one. When the number of input/output interrupt conditions for a virtual machine other than the running one is found to exceed a predetermined threshold number, operation of the currently running virtual machine is suspended. Control of the computer is then returned to the virtual machine control system to permit execution of another virtual machine so that the input/output interrupt condition for that virtual machine can be acknowledged.

REFERENCES:
patent: 4523206 (1985-06-01), Sasscer
patent: 4809164 (1989-02-01), Fuller
patent: 4811276 (1989-03-01), Suga
patent: 4812967 (1989-03-01), Hirosawa et al.
patent: 4843541 (1989-06-01), Bean et al.
patent: 4885681 (1989-12-01), Umeno et al.
patent: 4887202 (1989-12-01), Tanaka et al.
patent: 4969164 (1990-11-01), Mehta et al.
patent: 5095427 (1992-03-01), Tanaka et al.
patent: 5109489 (1992-04-01), Umeno et al.
patent: 5155858 (1992-10-01), DeBruler et al.
patent: 5303382 (1994-04-01), Buch et al.
patent: 5319753 (1994-06-01), Mackenna et al.
patent: 5361375 (1994-11-01), Ogi
Lattice Scheduling and Covert Channels, by Hu, IEEE 1992 Publication, pp. 52-61.
Analysis of Interrupt Handlings Schemes in Real-Time Systems by Fawaz et al, IEEE 1989, pp. 260-263.

Affiliated with

Also associated with

Rating

Virtual machine I/O interrupt control method compares number of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Virtual machine I/O interrupt control method compares number of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virtual machine I/O interrupt control method compares number of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-146215