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Patent Title: Apparatus for dynamic resource mapping for isolating interrupt sources and method therefore

Assignee: IBM
Patent Number: US6219743
Issue Date: 04-17-2001
Application Number:
File Date:09-30-1998

Abstract: An apparatus and method of dynamic resource mapping for isolating interrupt sources is implemented. Each interrupt source is provided with a unique identifier. The identifier is mapped to an interrupt number which is sent to an operating system when the interrupt source corresponding to the identifier generates an interrupt. Each device is associated with a data structure that includes a data value which is operable for accessing an interrupt register. The data value may be a pointer that points to a pointer to the interrupt register for the device generating the interrupt. When an interrupt is generated, the mapping may be used to access the pointers which thereby provide direct access to the interrupt register, whereby the contents of the interrupt register are processed by an interrupt service routine.


Link to USPTO

IBM Pledge dated 1/11/2005