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Oracle® VM Server for SPARC 3.6 Administration Guide

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Updated: September 2019
 
 

Static PCIe Bus Assignment

The static PCIe bus assignment method for a root domain requires you to initiate a delayed reconfiguration on the root domain when assigning or removing a PCIe bus. When you intend to use this method for a domain that does not yet own a PCIe bus, you must stop the domain before you assign the PCIe bus. After you complete the configuration steps on the root domain, you must reboot it. You must use the static method when the Oracle VM Server for SPARC 3.2 firmware is not installed in the system or when the OS version that is installed in the respective domain does not support dynamic PCIe bus assignment.

While the root domain is stopped or in delayed reconfiguration, you can run one or more of the ldm add-io and ldm remove-io commands before you reboot the root domain. To minimize domain downtime, plan ahead before assigning or removing PCIe buses.

  • For root domains, both primary and non-primary, use delayed reconfiguration. After you have added or removed the PCIe buses, reboot the root domain to make the changes take effect.

    primary# ldm start-reconf root-domain
    Add or remove the PCIe bus by using the ldm add-io or ldm remove-io command
    primary# ldm stop -r domain-name

    Note that you can use delayed reconfiguration only if the domain already owns a PCIe bus.

  • For non-root domains, stop the domain and then add or remove the PCie bus.

    primary# ldm stop domain-name
    Add or remove the PCIe bus by using the ldm add-io or ldm remove-io command
    primary# ldm start-domain domain-name