Instance creation with GPU via PCI passthrough failed.

Solution Verified - Updated -

Issue

  • To create an instance with GPU via PCI passthrough, followed the documentation but it failed with the kind of below ERROR messages
    .
: libvirt.libvirtError: XML error: Hostdev already exists in the domain configuration
2024-05-28 06:40:30.841 2 ERROR nova.virt.libvirt.driver [req-14a27817-4a5a-4861-8f6a-8d8b931b1378 c381e8df0aab462d86dbef397bc42268 dda8c24fea1447b29059297645757a97 - default default] [instance: 1dc15dc6-08a6-4d42-a6ff-47ae3dc71ef7] Failed to start libvirt guest: libvirt.libvirtError: XML error: Hostdev already exists in the domain configuration

133:2024-06-13 04:07:26.022 13 DEBUG nova.pci.stats [req-8678d7aa-bd9a-44be-aa28-59e8144aee09 c381e8df0aab462d86dbef397bc42268 dda8c24fea1447b29059297645757a97 - default default] Dropped 1 device(s) due to mismatched PCI attribute(s) _filter_pools /usr/lib/python3.9/site-packages/nova/pci/stats.py:447
1134:2024-06-13 04:07:26.022 13 DEBUG nova.pci.stats [req-8678d7aa-bd9a-44be-aa28-59e8144aee09 c381e8df0aab462d86dbef397bc42268 dda8c24fea1447b29059297645757a97 - default default] Not enough PCI devices left to satisfy request _filter_pools /usr/lib/python3.9/site-packages/nova/pci/stats.py:453

Environment

  • Red Hat OpenStack Platform 17.1

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