Subject: Re: serial console for dom0?
To: Steven M. Bellovin <>
From: david l goodrich <>
List: port-xen
Date: 12/29/2006 22:09:35
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On Fri, Dec 29, 2006 at 11:02:56PM -0500, Steven M. Bellovin wrote:
> I'm trying to build a dom0 system (4.0beta2) with a serial console.
> The standard XEN3-DOM0 doesn't include a com port; however, it=20
> includes XEN2_DOM0, which defines ISA com ports.  My machine is (and
> should be) ACPI, which is supported by the XEN3-DOM0 config file.
> Accordingly, I added=20
> I don't know why com0 is failing, unless perhaps it's because there's a
> cable going to it.  com1 is just a header on the motherboard.

All I added to XEN2_DOM0 was this:
com0   at isa? port 0x3f8 irq 4        # Standard PC serial port

and com0 worked fine for me.  I'm pretty sure ACPI in Xen is a real
mess, but you'll have to wait for someone more knowledgeable to
address that.

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