Efficiently supporting interrupts

Details Efficiently supporting interrupts Efficiently supporting interrupts

2006-05-23

2006-05-23

Perveen, Rehana (Department: 2112)

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C710S269000

Reexamination Certificate

active

07048877

ABSTRACT:
A method, system, and article of manufacture to efficiently support interrupts of a computer system. A message-based interrupt from a device of the computer system is intercepted. A fake line-based interrupt for the device corresponding to the message-based interrupt is determined, wherein an operating system (OS) of the computer system is not message-based interrupt capable. The fake line-based interrupt is issued to the OS. A query from the OS regarding the fake line-based interrupt is serviced, the query to determine if the fake line-based interrupt was from the device. An interrupt vector associated with the message-based interrupt is provided to the OS.

REFERENCES:
MICROSOFT, “The Importance of Implementing APIC-Based Interrupt Subsystems on Uniprocessor PCs”, Jan. 7, 2003.
MICROSOFT, “Interrupt Architecture Enhancements in Microsoft Windows, Codenamed “Longhorn””, Windows Platform Design Notes, 2003.

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