I/O adapter LPAR isolation with assigned memory space

Details I/O adapter LPAR isolation with assigned memory space I/O adapter LPAR isolation with assigned memory space

2007-01-09

2009-11-10

Tsai, Henry W. H. (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

C710S033000

Reexamination Certificate

active

07617340

ABSTRACT:
A data processing system and method of isolating a plurality of I/O adapters in the system. The data processing system also comprises a set of processors communicating with the I/O adapters using a PCIe protocol. Each of the I/O adapters has a respective ID. In the preferred embodiment the commands issued by the I/O adapters include a PCIe defined Requestor ID field including one or more of the Requestor IDs of I/O Adapters. The Req IDs can be used as an input to a CAM which provides an index to a TVT to identify a unique and independent system memory space for the I/O adapter.

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