Patent · US Active

Direct memory access-like data transfer between guest operating systems

US8799592B2 · kind B2 · utility

1Cited by

1References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Gerd Bayer · Stuttgart, DE
Marco Kraemer · Sindelfingen, DE
Hoang-Nam Nguyen · Fremont, US
Christoph Raisch · Gerlingen, DE
Stefan Usenbinz · Böblingen, DE

Key dates

Filing date	Apr 10, 2012
Grant date	Aug 5, 2014
Priority date	—
Expiry date	Jan 25, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/151
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computer system with a memory containing a first guest operating system, including a first portion of the memory and a second guest operating system, including a second portion of the memory. The memory further contains an address exchange module for exchanging memory address handles, a data mover for moving data between the first and second portions of the memory, and an emulated input output memory management unit for controlling the data mover. Instructions in the memory cause the processor to: register accessible memory with the emulated input output memory management unit, write address handles to the address exchange module, read the address handles from the address exchange module, and move the data into the second portion of the memory.

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