Go to main content

Oracle® VM Server for SPARC 3.6 Administration Guide

Exit Print View

Updated: September 2019
 
 

Non-primary Root Domain Limitations

    Use of the non-primary root domain has the following limitations:

  • An I/O domain cannot start if the associated root domain is not running.

  • Support for delayed reconfiguration has been extended to the non-primary root domains. Only the following commands can be run until that root domain has been rebooted or the delayed reconfiguration has been canceled:

    • ldm add-io

    • ldm remove-io

    • ldm set-io

    • ldm create-vf

    • ldm destroy-vf

  • The root domain must be active and booted to perform the following operations:

    • Creating and destroying SR-IOV virtual functions

    • Adding and removing PCIe slots

    • Adding and removing SR-IOV virtual functions

  • You must initiate a delayed reconfiguration on the root domain when you perform the ldm add-io and ldm remove-io direct I/O operations for PCIe slots.

  • When your configuration does not meet the dynamic I/O virtualization requirements, you must use delayed reconfiguration for the following SR-IOV virtual function operations:

    • ldm create-vf

    • ldm destroy-vf

    • ldm add-io

    • ldm remove-io

    • ldm set-io

  • The reboot of a root domain affects any I/O domain that has a device from the PCIe buses that the root domain owns. See Rebooting the Root Domain With PCIe Endpoints Configured.

  • You cannot assign an SR-IOV virtual function or a PCIe slot from one root domain to another root domain. This limitation prevents circular dependencies.