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Oracle® VM Server for SPARC 3.6 Administration Guide

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Updated: September 2019

Current Direct I/O Feature Limitations

For information about how to work around the limitations, see Planning PCIe Endpoint Device Configuration.

Assignment or removal of a PCIe endpoint device to any non-root domain is permitted only when that domain is either stopped or inactive.

Note - The Fujitsu SPARC M12 server and Fujitsu M10 server support the dynamic reconfiguration of PCIe endpoint devices. You can assign or remove PCIe endpoint devices without rebooting the root domain or stopping the I/O domain.

For up-to-date information about this feature, see Fujitsu SPARC M12 Systems System Operation and Administration Guide or Fujitsu M10/SPARC M10 Systems System Operation and Administration Guide for your model at http://www.fujitsu.com/global/services/computing/server/sparc/downloads/manual/.

SPARC systems, up to and including the SPARC T5 and SPARC M6 platforms, provide a finite number of interrupts, so Oracle Solaris limits the number of interrupts that each device can use. The default limit should match the needs of a typical system configuration but you might need to adjust this value for certain system configurations. For more information, see Adjusting the Interrupt Limit.