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CPU hotplug with networkInterfaceMultiqueue enabled
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modules/virt-hot-plugging-cpu.adoc

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@@ -19,3 +19,11 @@ You can increase or decrease the number of CPU sockets allocated to a virtual ma
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If the VM is migratable, a live migration is triggered. If not, or if the changes cannot be live-updated, a `RestartRequired` condition is added to the VM.
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[NOTE]
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====
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If a VM has `networkInterfaceMultiQueue: true` enabled and CPUs are hot-plugged:
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* Existing network interfaces that were attached before the CPU hotplug retain their original queue count, even after additional vCPUs are added. This is expected behavior due to the underlying virtualization technology.
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* If the VM owner wants the interface queue count to reflect the new vCPU configuration, a VM restart is required.
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* Any virtio network interfaces added **after** the CPU hotplug will automatically have their queue count updated to match the current vCPU configuration.
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