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[Xen-devel] Pass through in Xen



I am trying to learn how Passthrough works in xen. As an initial step I have tried to do PCI passthrough in my PC with Ubuntu 16.04 LTS (Xenial Xerus) as Dom0 and DomU. For that I had to rebuild the kernel to add xen support and with the procedure explained in,




I have successfully tested a PCI device in my PC.

As per my current understanding, the control flow for PCI passthrough is “xen-pcifront -> xen-pciback -> driver”. Is this correct?

Should the Dom0 and DomU have the Driver enabled in there kernel?

Can anyone please explain or point me to a thread where I can read about the internals of PCI passthrough or How passthrough actually works?

Please Help.




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