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[Xen-users] How to assign a SR-IOV Virtual Function to Host


I am using Ubuntu Xen 4.1 with kernel 3.1.0.

When SR-IOV is enabled for a PCI device (pci_enable_sriov(device, no_vf)), it creates multiple VFs on the machine.

I am able to assign it to a guest VM by PCI passthrough (xm pci-attach) and use the device as a regular device on guest VM.

I have a use-case like, I need to use one of the VFs on the host machine itself.
So, is there any way to assign VF to host itself and use it as a regular device there.

Or, how can we can access a VF created by SR-OV on host machine directly.


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