Patent · US Active

Interpreting I/O operation requests from pageable guests without host intervention

US7941799B2 · kind B2 · utility

49Cited by

48References

80Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Janet R. Easton · Woodstock, US
William A. Holder · Vestal, US
Bernd Nerz · Eppelheim, DE
Damian L. Osisek · Vestal, US
Gustav E. Sittmann, III · Webster Groves, US
Richard P. Tarcza · Kingston, US
Leslie W. Wyman · Poughkeepsie, US

Key dates

Filing date	May 27, 2004
Grant date	May 10, 2011
Priority date	—
Expiry date	Sep 18, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S707/99943
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Input/output (I/O) operation requests from pageable storage mode guests are interpreted without host intervention. In a pageable mode virtual environment, requests issued by pageable storage mode guests are processed by one or more processors of the environment absent intervention from one or more hosts of the environment. Processing of the requests includes manipulating, by at least one processor on behalf of the guests, buffer state information stored in host storage. The manipulating is performed via instructions initiated by the guests and processed by one or more of the processors.

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