ROUTING DIRECT MEMORY ACCESS REQUESTS IN A VIRTUALIZED COMPUTING ENVIRONMENT

Title:

ROUTING DIRECT MEMORY ACCESS REQUESTS IN A VIRTUALIZED COMPUTING ENVIRONMENT

Document Type and Number:

WIPO Patent Application WO/2016/033039

Kind Code:

A3

Abstract:

A device may receive a direct memory access request that identifies a virtual address. The device may determine whether the virtual address is within a particular range of virtual addresses. The device may selectively perform a first action or a second action based on determining whether the virtual address is within the particular range of virtual addresses. The first action may include causing a first address translation algorithm to be performed to translate the virtual address to a physical address associated with a memory device when the virtual address is not within the particular range of virtual addresses. The second action may include causing a second address translation algorithm to be performed to translate the virtual address to the physical address when the virtual address is within the particular range of virtual addresses. The second address translation algorithm may be different from the first address translation algorithm.

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Inventors:

KEGEL ANDREW G (US)
ASARO ANTHONY (CA)

Application Number:

PCT/US2015/046687

Publication Date:

May 06, 2016

Filing Date:

August 25, 2015

Export Citation:

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Assignee:

ADVANCED MICRO DEVICES INC (US)
ATI TECHNOLOGIES ULC (CA)

International Classes:

G06F13/16; G06F12/10

Foreign References:

US20140068133A1	2014-03-06
US20130138873A1	2013-05-30
US20060004975A1	2006-01-05
US20120072906A1	2012-03-22
US20080005495A1	2008-01-03

Other References: