Translating translation requests having associated priorities

US8966221B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Ute Gaertner · Schenefeld, DE
• Thomas Koehler · Holzgerlingen, DE

Key dates

• Filing date: Jun 21, 2011
• Grant date: Feb 24, 2015
• Expiry date: Dec 12, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F12/0855
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A lookup operation is performed in a translation look aside buffer based on a first translation request as current translation request, wherein a respective absolute address is returned to a corresponding requestor for the first translation request as translation result in case of a hit. A translation engine is activated to perform at least one translation table fetch in case the current translation request does not hit an entry in the translation look aside buffer, wherein the translation engine is idle waiting for the at least one translation table fetch to return data, reporting the idle state of the translation engine as lookup under miss condition and accepting a currently pending translation request as second translation request, wherein a lookup under miss sequence is performed in the translation look aside buffer based on said second translation request.