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[Xen-ia64-devel] Re: [PATCH] Only one serial console on Tiger2

To: Horms <horms@xxxxxxxxxxxx>
Subject: [Xen-ia64-devel] Re: [PATCH] Only one serial console on Tiger2
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Thu, 15 Feb 2007 07:01:06 -0700
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On Thu, 2007-02-15 at 19:30 +0900, Horms wrote:
> Hi Alex,
> 
> I did a bit of research and it seems that the Tiger2, like the Tiger4,
> only has one serial port. So we can use common code for both of them,
> having com1=0x2f8.
> 
> Tested on a Tiger 2 with the following command line, which is only
> needed for the linux dom0 console -- xen and linux dom0 boot messages
> come over serial anyway:
> 
> "-- console=ttyS0"

Hi Simon,

   Great, thanks for investigating.  Once com1 is set to 0x2f8, you
actually shouldn't even need to specify a console= for dom0.  This patch
will automatically set your preferred console to the xencons device:

http://xenbits.xensource.com/ext/xen-ia64-unstable.hg?cs=81c4f90695a8

Of course if you want to get the console mirrored on both VGA and
xencons as your previous cmdline did, you'll still need to specify both.
Thanks,

        Alex
-- 
Alex Williamson                             HP Open Source & Linux Org.


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