Utilizing IOMMUs for Virtualization in Linux and Xen Muli

@inproceedings{BenYehuda2006UtilizingIF,
  title={Utilizing IOMMUs for Virtualization in Linux and Xen Muli},
  author={Ben-Yehuda and Jimi Xenidis},
  year={2006}
}
IOMMUs are hardware devices that translate device DMA addresses to proper machine physical addresses. IOMMUs have long been used for RAS (prohibiting devices from DMA’ing into the wrong memory) and for performance optimization (avoiding bounce buffers and simplifying scatter/gather). With the increasing emphasis on virtualization, IOMMUs from IBM, Intel, and AMD are being used and re-designed in new ways, e.g., to enforce isolation between multiple operating systems with direct device access… CONTINUE READING
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