linux-kernel - Re: [PATCH] x86/earlyprintk: setup earlyprintk as early as possible

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Message-ID: <CANCZXo6VOHOz-v8V=SnprXOvbMV5tuYsfeNqwqk-TOvykLCkRQ@mail.gmail.com>
Date:	Tue, 7 Apr 2015 16:31:54 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/earlyprintk: setup earlyprintk as early as possible

> Ingo Molnar <mingo@...nel.org>: wrote:
>
> Just add a debug printk() for your own testing, right after the param
> initialization call, to be confident that the early console indeed
> works.
>

I already tested it as you said when was writing this patch and it works.

>
> I'd use i386_start_kernel() on 32-bit and x86_64_start_kernel() on
> 64-bit - but I haven't tested whether it actually works.
>

As i already wrote, i tested it for x86_64 and it works. I will put earlyprintk
setup in the start of the i386_start_kernel, will test it with 32-bit
and resend two
patches if they will be good.
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