MSI MS-91E2 manual IntelR VT for Directed I/O Configuration IntelR VT-d, Interrupt Remapping

MS-91E2

▶Intel(R) VT for Directed I/O Configuration

▶Intel(R) VT-d

Intel Virtualization Technology for Directed I/O (Intel VT-d) provides the ca- pability to ensure improved isolation of I/O resources for greater reliability, security, and availability.

▶Interrupt Remapping

Intel VT-d interrupt remapping allows for reductions in interrupt virtualiza- tion overhead for assigned devices. Interrupt requests specify a requester- ID and interrupt-ID, and remap hardware transforms these requests to a physical interrupt, using a software-programmed Interrupt Remap Table structure in memory.

▶Coherency Support

This setting indicates if hardware access to the root, context, page-table and interrupt-remap structures are coherent (snooped) or not.

▶ATS Support

This setting enables/disables the ATS (Address Translation Service) sup- port for the Intel IOMMU.

▶Pass-through DMA

This setting enables/disables the pass-through DMA function.

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