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Re: [Xen-devel] early_cpu_init() and identify_cpu()

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] early_cpu_init() and identify_cpu()
From: "Jan Beulich" <jbeulich@xxxxxxxxxx>
Date: Mon, 16 Jul 2007 08:31:37 +0100
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>>> Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> 16.07.07 09:01 >>>
>On 16/7/07 07:57, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> wrote:
>
>> But if Linux re-draws the whole screen instead of scrolling, won't Xen's
>> output get overwritten anyway? That would limit 'vga=keep's usefulness,
>> except for crash dumps after which Linux dom0 will not print any more (I
>> suppose that is the main most useful case though).
>
>If you only cared about crash dumps you could just always use re-draw
>behaviour, disable Xen output after console_endboot(), but always
>*re-enable* output, at coordinate (0,0) top-left of screen, on any call to
>start_sync_console(). That usually indicates something important is being
>printed. :-) Starting at top-left means you do not obliterate the most
>recent dom0 output.
>
>Would that be acceptable?

It would be an option, but not my preferred solution.

Jan


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