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12.3. PCI passthrough with virt-install
To use PCI passthrough with the virt-install parameter, use the additional --host-device parameter.
Identify the PCI device
Identify the PCI device designated for passthrough to the guest. The virsh nodedev-list command lists all devices attached to the system. The --tree option is useful for identifying devices attached to the PCI device (for example, disk controllers and USB controllers).
# virsh nodedev-list --tree
For a list of only PCI devices, run the following command:
# virsh nodedev-list | grep pci
In the output from this command, each PCI device is identified by a string, as shown in the following example output: