Patent · US Active

Dynamic address translation with translation table entry format control for identifying format of the translation table entry

US9244856B2 · kind B2 · utility

3Cited by

24References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Dan F. Greiner · San Jose, US
Lisa C. Heller · Rhinebeck, US
Damian L. Osisek · Vestal, US
Erwin Pfeffer · Eppelheim, DE
Timothy Siegel · Staatsburg, US
Charles F. Webb · Wappingers Falls, US

Key dates

Filing date	Dec 19, 2013
Grant date	Jan 26, 2016
Priority date	—
Expiry date	Dec 19, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F12/1027
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An enhanced dynamic address translation facility is provided. In one embodiment, a virtual address to be translated and an initial origin address of a translation table of the hierarchy of translation tables are obtained. An index portion of the virtual address is used to reference an entry in the translation table. If a format control field contained in the translation table entry is enabled, the table entry contains a frame address of a large block of data of at least 1M byte in size. The frame address is then combined with an offset portion of the virtual address to form the translated address of a small 4K byte block of data in main storage or memory.

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