Red Hat Enterprise Linux 8 Essentials Book now available.
Purchase a copy of Red Hat Enterprise Linux 8 (RHEL 8) Essentials in eBook ($24.99) or Print ($36.99) format
Red Hat Enterprise Linux 8 Essentials Print and eBook (ePub/PDF/Kindle) editions contain 31 chapters and over 250 pages
12.2. Adding a PCI device with virt-manager
PCI devices can be added to guests using the graphical virt-manager tool. The following procedure adds a 2 port USB controller to a virtualized guest.
Identify the 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:
Open the virtual machine and click the Add Hardware button to add a new device to the guest.
Add the new device
Select Physical Host Device from the Hardware type list. Click Forward to continue.
Select a PCI device
Select an unused PCI device. Note that selecting PCI devices presently in use on the host causes errors. In this example a PCI to USB interface device is used.
Confirm the new device
Click the Finish button to confirm the device setup and add the device to the guest.
The setup is complete and the guest can now use the PCI device.