I/O adapter LPAR isolation with assigned memory space
US7617340B2 · kind B2 · utility
52Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2007 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | May 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/124
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.