Dynamic determination of memory mapped input output range...

Details Dynamic determination of memory mapped input output range... Dynamic determination of memory mapped input output range...

2007-05-01

2007-05-01

Sparks, Donald (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output expansion

C711S001000

Reexamination Certificate

active

10122043

ABSTRACT:
A method and system enables dynamic support of memory mapping devices in a multi-node computer system. One of central process unit (CPU) nodes determines a total amount of MMIO address spaces that are needed for all MMIO devices and generates an optimized granularity to support the total amount of MMIO address spaces. Based on the granularity, a CPU node controller configures MMIO range registers of the interconnect and other MMIO registers in IO nodes and CPU node controllers to support dynamic changes of MMIO address space requirements of the system.

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