Hi Guys,

I am trying to add a Broadcom Physical NIC to a virtual Machine as Passthrough device. However I am getting following error.

Error starting domain: unsupported configuration: host doesn't support passthrough of host PCI devices

Traceback (most recent call last):

File "/usr/share/virt-manager/virtManager/asyncjob.py", line 88, in cb_wrapper

callback(asyncjob, *args, **kwargs)

File "/usr/share/virt-manager/virtManager/asyncjob.py", line 124, in tmpcb

callback(*args, **kwargs)

File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 83, in newfn

ret = fn(self, *args, **kwargs)

File "/usr/share/virt-manager/virtManager/domain.py", line 1404, in startup

self._backend.create()

File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1035, in create

if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)

libvirtError: unsupported configuration: host doesn't support passthrough of host PCI devices

libvirt allows to appply the changes to the VM xml configurations, but gives error the moment I try to start the VM.

I have tried following approaches.

1- Open Virt-Manager, Shutdown VM, edit VM , add PCI hardware device , locate BroadCom NIC, apply changes. Then I restart the VM.

2- Also tried to add following XML tags one by one using 'virsh edit', but got same error.

Tag -1

</source>

</hostdev>

Tag -2

</source>

</interface>

The detail of the BroadCOm NIC are as follows.

02:00.1 Ethernet controller: Broadcom Limited NetXtreme II BCM5709 Gigabit Ethernet (rev 20)

What would it take to add this NIC to VM as Passthrough Device?

Regards,

Tahir Masood

Senior Engineer,

xFlow Research Inc.

+92-300-9779473