Virtualised interface functions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 2013
Grant Date -
Jun 24, 2010
app pub date -
Dec 14, 2009
filing date -
Dec 18, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Roughly described, a data processing system comprises a memory addressable by a range of physical memory addresses; a plurality of non-privileged software domains each having a virtual memory address space; a privileged software domain; a memory management unit operable to perform virtual address translation of a virtual memory address into a physical memory address; and an I/O device supporting virtualised interfaces each associated with a respective non-privileged software domain, the I/O device comprising an operation management unit operable to perform virtual address translation in one or more of the virtual memory address spaces; wherein, for I/O operations requested by a virtualised interface, the I/O device invokes the operation management unit to perform virtual address translation for those I/O operations meeting first criteria and to invoke the memory management unit to perform virtual address translation for those I/O operations which do not meet the first criteria.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully