Chained hybrid input/output memory management unit
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United States of America Patent
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Jun 16, 2009
Grant Date -
Jul 19, 2007
app pub date -
Jan 16, 2007
filing date -
Jan 17, 2006
priority date (Note) -
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Abstract
In one embodiment, an input/output (I/O) node comprises an I/O memory management unit (IOMMU) configured to translate memory requests. The I/O node is configured to couple to an interconnect and to operate as a tunnel on the interconnect, and wherein the IOMMU is configured translate memory requests passing through the tunnel in the upstream direction. In another embodiment, a system comprises another I/O node configured to bridge another interconnect to the interconnect, wherein the I/O node is the tunnel for the other I/O node.
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