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Re: [Xen-devel] serial ports in a pv domU

To: Michael D Labriola <mlabriol@xxxxxxxx>
Subject: Re: [Xen-devel] serial ports in a pv domU
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Fri, 19 Mar 2010 17:29:22 +0000
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On Fri, 2010-03-19 at 17:21 +0000, Michael D Labriola wrote:
> Is there a way to pass a system's on-board serial port(s) into a 
> paravirtualized domU?

I think you can pass individual IO ports and interrupt through to a PV
guest without necessarily passing through a PCI device. 

I'm afraid I don't actually know the exact runes to cause xend or xl or
whatever to do this though -- I think perhaps for xend lines like:
(or whatever the com port uses) in your config file might do the trick.

> I don't have any on hand to test with, but would passing a PCI serial card 
> into the domU have any issues?

I'd expect that to work alright.


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