Re: [Xen-devel] Mini-OS and serial output

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 8/7/07 23:44, "lists@xxxxxxxxx" <lists@xxxxxxxxx> wrote:

> does the serial console output via "HYPERVISOR_console_io(..)" works? I've
> enabled with 'make debug=y' the serial output and get a output to the
> serial interface while the system boots. I've started mini-os and expected
> to see the line "Bootstrapping..." as defined in kernel.c, but my minicom
> session prints no such line.
> 
> Maybe somebody can tell me whats wrong or maybe what I have to do to get
> serial output working for mini-os?

You should get serial output via that hypercall if you have a debug build of
Xen. Otherwise only dom0 is allowed to use that hypercall and you need to
perform inter-domain communication to dom0 to output to the text console.

 -- Keir


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