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Merge "Multiple spec per PCI alias limitation"

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Zuul
2025-06-12 03:28:17 +00:00
committed by Gerrit Code Review
parent 03a828720f c3f392dd8e
commit 45623879d9
1 changed files with 6 additions and 0 deletions
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doc/source/admin/pci-passthrough.rst
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@@ -436,6 +436,12 @@ be added to the resource provider representing the matching PCI devices.
(Zed) the nova-compute service will refuse to start with such configuration.
It is suggested to use the PCI address of the device instead.
.. important::
While nova supported configuring :oslo.config:option:`pci.alias` where an
alias name is repeated and therefore associated to multiple alias
specifications, such configuration is not supported when PCI tracking in
Placement is enabled.
The nova-compute service makes sure that existing instances with PCI
allocations in the nova DB will have a corresponding PCI allocation in
placement. This allocation healing also acts on any new instances regardless of