Installation guide

d. The default text editor will open the libvirt configuration file for the guest. Add the new

device to the devices section of the XML configuration file.

</source>

</hostdev>

e. Save the configuration.

9. Rest art

Restart the guest to complete the installation.

# virsh start MyGuest

The guest should start successfully and detect a new network interface card. This new card is the

Virtual Function of the SR-IOV device.

16.3. T roubleshoot ing SR-IOV

This section contains some issues and solutions for problems which may affect SR-IOV.

Erro r st art in g t h e g u est

Start the configured vm , an error reported as follows:

# virsh start test

error: Failed to start domain test

error: internal error unable to start guest: char device redirected to

/dev/pts/2

get_real_device: /sys/bus/pci/devices/0000:03:10.0/config: Permission denied

init_assigned_device: Error: Couldn't get real device (03:10.0)!

Failed to initialize assigned device host=03:10.0

This error is often caused by a device which is already assigned to another guest or to the host itself.

Red Hat En t erp rise Lin ux 5 Virt ualizat ion Guid e

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