Patent · US Expired

Method, system and program product for differentiating between virtual hosts on bus transactions and associating allowable memory access for an input/output adapter that supports virtualization

US7493425B2 · kind B2 · utility

33Cited by

15References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Richard Louis Arndt · Austin, US
Giora Biran · Jerusalem, IL
Patrick Allen Buckland · Austin, US
Harvey Gene Kiel · Rochester, US
Vadim Makhervaks · Austin, US
Renato J. Recio · Austin, US
Leah Shalev · Jerusalem, IL
Jaya Srikrishnan · Wappingers Falls, US

Key dates

Filing date	Feb 25, 2005
Grant date	Feb 17, 2009
Priority date	—
Expiry date	Dec 28, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG06F2009/45583
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, system and computer program product that allows a System Image within a multiple System Image Virtual Server to maintain isolation from the other system images while directly exposing a portion, or all, of its associated System Memory to a shared PCI Adapter without the need for each I/O operation to be analyzed and verified by a component trusted by the LPAR manager.

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