Patent · US Active

Mechanism to virtualize all address spaces in shared I/O fabrics

US7492723B2 · kind B2 · utility

6Cited by

15References

1Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

William T. Boyd · Poughkeepsie, US
Douglas M. Freimuth · New York, US
William G. Holland · Cary, US
Steven W. Hunter · Raleigh, US
Renato J. Recio · Austin, US
Steven M. Thurber · Austin, US
Madeline Vega · Austin, US

Key dates

Filing date	Jul 7, 2005
Grant date	Feb 17, 2009
Priority date	—
Expiry date	Mar 9, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/4045
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A mechanism, method and computer usable medium is provided for each root node of a multiple root node system and its own independent address space. This mechanism also allows multiple system images within the same root node to have their own independent address spaces. A mechanism is also provided for incorporating legacy root node and input/output adapters that are non-aware of the mechanisms introduced by this invention. Input/ output adapters which implement this invention may also have the number of functions that they support greatly expanded beyond the present eight functions per input/output adapter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.