发明申请
US20070038799A1 Ensuring deadlock free operation for peer to peer traffic in an input/output memory management unit (IOMMU)
有权
确保输入/输出存储器管理单元（IOMMU）中的对等流量的无死锁操作
- 专利标题： Ensuring deadlock free operation for peer to peer traffic in an input/output memory management unit (IOMMU)
- 专利标题（中）： 确保输入/输出存储器管理单元（IOMMU）中的对等流量的无死锁操作
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申请号： US11503375申请日： 2006-08-11
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公开(公告)号： US20070038799A1公开(公告)日： 2007-02-15
- 发明人: Mark Hummel , Michael Haertel , Andrew Lueck , Mitchell Alsup , William Hughes , Geoffrey Strongin
- 申请人： Mark Hummel , Michael Haertel , Andrew Lueck , Mitchell Alsup , William Hughes , Geoffrey Strongin
- 申请人地址： US CA Sunnyvale
- 专利权人： Advanced Micro Devices, Inc.
- 当前专利权人： Advanced Micro Devices, Inc.
- 当前专利权人地址： US CA Sunnyvale
- 主分类号： G06F12/08
- IPC分类号： G06F12/08 ; G06F12/00
摘要：
In one embodiment, an input/output memory management unit (IOMMU) comprises a cache to cache translation data from memory; and a control unit coupled to the cache. The control unit is configured to implement address translation and memory protection for memory requests sourced by one or more input/output (I/O) devices. The memory requests sourced by the I/O devices travel in one or more first virtual channels, and the control unit is configured to transmit memory requests sourced by the control unit in at least a second virtual channel separate from the first virtual channels.
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