Invention Grant
- Patent Title: Memory address re-mapping of graphics data
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Application No.: US13369720Application Date: 2012-02-09
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Publication No.: US08477145B2Publication Date: 2013-07-02
- Inventor: Balaji Vembu , Aditya Navale , Wishwesh Gandhi
- Applicant: Balaji Vembu , Aditya Navale , Wishwesh Gandhi
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: G06F12/10
- IPC: G06F12/10 ; G06F12/06 ; G09G5/39

Abstract:
A method and apparatus for creating, updating, and using guest physical address (GPA) to host physical address (HPA) shadow translation tables for translating GPAs of graphics data direct memory access (DMA) requests of a computing environment implementing a virtual machine monitor to support virtual machines. The requests may be sent through a render or display path of the computing environment from one or more virtual machines, transparently with respect to the virtual machine monitor. The creating, updating, and using may be performed by a memory controller detecting entries sent to existing global and page directory tables, forking off shadow table entries from the detected entries, and translating GPAs to HPAs for the shadow table entries.
Public/Granted literature
- US20120139927A1 MEMORY ADDRESS RE-MAPPING OF GRAPHICS DATA Public/Granted day:2012-06-07
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