linux-kernel - Re: [PATCH] x86: efi: Allow basic EFI use on mixed 32/64 firmware/kernel

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Date:	Fri, 30 Dec 2011 22:38:02 -0800
From:	Olof Johansson <olof@...om.net>
To:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Matthew Garrett <mjg@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	Matt Fleming <matt.fleming@...el.com>,
	Olof Johansson <olof@...om.net>
Subject: Re: [PATCH] x86: efi: Allow basic EFI use on mixed 32/64 firmware/kernel

On Thu, Dec 29, 2011 at 9:23 PM, Olof Johansson <olof@...om.net> wrote:

> I have tested this on 64-bit EFI with 64- and 32-bit kernels. I
> unfortunately don't have ready access to a 64-bit capable system that
> runs a 32-bit EFI to test it that way around. If someone else has such
> a system, I would appreciate a Tested-by.

I didn't do reviewers any favors by submitting the patch like this,
it's quite hard to review the way that git format-patch exports it.

I have also been able to test this on a MacBook2,1 (32-bit EFI) with
64-bit kernel. Only combination left untested so far is a 64-bit EFI
that locates data high with a 32-bit kernel to verify those error
paths.

So, I have a short series of patches that does cleanups and
refactorings first, then adds the 32/64-mixed support on top of it. I
want to test it a bit more before I repost, but I wanted to give the
heads up in case someone starts to spend time reviewing this -- might
as well hold off until the series is posted.

-Olof
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