Invention Grant
- Patent Title: Routing direct memory access requests in a virtualized computing environment
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Application No.: US15491616Application Date: 2017-04-19
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Publication No.: US10162765B2Publication Date: 2018-12-25
- Inventor: Andrew G. Kegel , Anthony Asaro
- Applicant: Advanced Micro Devices, Inc. , ATI Technologies ULC
- Applicant Address: US CA Santa Clara CA Markham
- Assignee: Advanced Micro Devices, Inc.,ATI Technologies ULC
- Current Assignee: Advanced Micro Devices, Inc.,ATI Technologies ULC
- Current Assignee Address: US CA Santa Clara CA Markham
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G06F13/28 ; G06F12/1009 ; G06F12/1027 ; G06F12/1081

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.
Public/Granted literature
- US20170220485A1 ROUTING DIRECT MEMORY ACCESS REQUESTS IN A VIRTUALIZED COMPUTING ENVIRONMENT Public/Granted day:2017-08-03
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