发明名称 Simplified DMA mappings for self-virtualizing input/output device virtual functions
摘要 Multiple translation control entries (TCEs) at the same indices in multiple, same size TCE tables are mapped to facilitate data communication between a self-virtualizing input/output (IO) resource and a logical partition. First and second TCE tables used by an adjunct partition that interfaces a self-virtualizing IO resource with a logical partition may be identically sized, so that whenever a direct memory access (DMA) operation between the self-virtualizing IO resource and the logical partition is desired the same TCE entries in the first and second TCE tables may be used to perform a redirected DMA operation, and without the need to perform hashing or other mapping algorithms to map to the respective TCE entries in the respective TCE tables.
申请公布号 US8561066(B2) 申请公布日期 2013.10.15
申请号 US20100963300 申请日期 2010.12.08
申请人 KOCH ANDREW T.;LUCKE KYLE A.;INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 KOCH ANDREW T.;LUCKE KYLE A.
分类号 G06F9/455;G06F9/46 主分类号 G06F9/455
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