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Date: Tue, 24 Nov 2009 13:25:34 -0600
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] [PATCH 10/13] Implement early printk in
	virtio-console
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To: Alexander Graf <agraf@suse.de>
Cc: Carsten Otte <cotte@de.ibm.com>, qemu-devel@nongnu.org, Aurelien Jarno <aurelien@aurel32.net>

Alexander Graf wrote:
> On 24.11.2009, at 19:55, Anthony Liguori wrote:
>
>   
>> Alexander Graf wrote:
>>     
>>> On our S390x Virtio machine we don't have anywhere to display early printks
>>> on, because we don't know about VGA or serial ports.
>>>
>>> So instead we just forward everything to the virtio console that we created
>>> anyways.
>>>  
>>>       
>> What is this used for?
>>     
>
> This is used for console output before virtio is initialized. I didn't invent it - that's the way it's implemented in the s390 kernels today.
>   

I don't see any code that calls this function.  Am I missing something 
obvious?

> Alex

Regards,

Anthony Liguori