Re: [PATCH v6 3/3] x86/earlyprintk: setup earlyprintk as early as possible

From: Alexander Kuleshov
Date: Tue May 12 2015 - 14:08:33 EST


2015-05-12 23:58 GMT+06:00 Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>:
>> >
>>
>> Because for now we can setup only serial console, for other we need ioremap
>> which is not enabled for this moment. Here we just try to find serial console
>> and setup it, if another argument passed to the 'earlyprintk', it will
>> be parsed in the
>> 'setup_arch'.
>
> Even for EFI case?
>

If I understand correctly, yes. As we can read from early_efi_map_fb function
(which setup with early_initcall) comment: efi earlyprintk need use
early_ioremap
to map the framebuffer.
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