linux-kernel - Re: [PATCH] x86/efi: Add EFI framebuffer earlyprintk support

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Message-ID: <20131011062159.GD4975@gmail.com>
Date:	Fri, 11 Oct 2013 08:21:59 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Peter Jones <pjones@...hat.com>,
	Matt Fleming <matt@...sole-pimps.org>,
	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Matt Fleming <matt.fleming@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] x86/efi: Add EFI framebuffer earlyprintk support


* Matthew Garrett <mjg59@...f.ucam.org> wrote:

> On Thu, Oct 10, 2013 at 07:45:21PM +0200, Ingo Molnar wrote:
> 
> > Also, the main question would be, what is the typical value for 
> > si->lfb_depth. 32 on almost all EFI systems? All around the map? Depends 
> > on what graphics state the EFI bootloader passes us?
> 
> Microsoft require that it be 32, so in practice I suspect it'll always 
> be 32. [...]

Ok, cool - and it's a rare sight: Microsoft standing up against bloat and 
complexity.

> [...] It's possible that Itanium decides to be different.

That would be a feature!

Thanks,

	Ingo
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