- 专利标题: Memory address re-mapping of graphics data
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申请号: US13369720申请日: 2012-02-09
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公开(公告)号: US08477145B2公开(公告)日: 2013-07-02
- 发明人: Balaji Vembu , Aditya Navale , Wishwesh Gandhi
- 申请人: Balaji Vembu , Aditya Navale , Wishwesh Gandhi
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号: G06F12/10
- IPC分类号: G06F12/10 ; G06F12/06 ; G09G5/39
摘要:
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.
公开/授权文献
- US20120139927A1 MEMORY ADDRESS RE-MAPPING OF GRAPHICS DATA 公开/授权日:2012-06-07
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