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

[Horms <horms@xxxxxxxxxxxx>]

On Fri, Feb 16, 2007 at 04:05:52PM +0900, Horms wrote:
> On Thu, Feb 15, 2007 at 07:01:06AM -0700, Alex Williamson wrote:
> > 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,
> 
> It seems that if I don't set console=ttyS0 then my user-space doesn't
> know to use the serial console. But that could be more a limitation of
> my user space than anything else.
> 
> Everything else seems fine.

Correction, it all works fine as you suggest. 
I guess I must have had a stray console setting or something
the last time that I tested this.

-- 
Horms
  H: http://www.vergenet.net/~horms/
  W: http://www.valinux.co.jp/en/


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