Patent · US Active

Method for address translation in virtual machines

US8151085B2 · kind B2 · utility

20Cited by

2References

12Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Joerg Deutschle · Winnenden, DE
Ute Gaertner · Schenefeld, DE
Erwin Pfeffer · Eppelheim, DE
Chung-Lung K. Shum · Wappingers Falls, US
Bruce Wagar · Tempe, US

Key dates

Filing date	Jan 14, 2009
Grant date	Apr 3, 2012
Priority date	—
Expiry date	Aug 17, 2030

Classification

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

Abstract

The invention relates to a method for address translation in a system running multiple levels of virtual machines containing a hierarchically organized translation lookaside buffer comprising at least two linked hierarchical sub-units, a first sub-unit comprising a lookaside buffer for some higher level address translation levels, and the second sub-unit comprising a lookaside buffer for some lower level address translation levels, and said second sub-unit being arranged to store TLB index address information of the upper level sub-unit as tag information in its lower level TLB structure, comprising the steps of collecting intermediate address translation results on different virtual machine levels; and buffering the intermediate translation results in the translation lookaside buffer.

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