linux-kernel - Re: [PATCH] Remove warning in efi_enter_virtual

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Message-ID: <51705366.8070001@intel.com>
Date:	Thu, 18 Apr 2013 13:11:18 -0700
From:	Darren Hart <darren.hart@...el.com>
To:	Matthew Garrett <matthew.garrett@...ula.com>
CC:	Matt Fleming <matt@...sole-pimps.org>,
	Josh Triplett <josh@...htriplett.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Bryan O'Donoghue <bryan.odonoghue.lkml@...us-software.ie>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Josh Boyer <jwboyer@...hat.com>
Subject: Re: [PATCH] Remove warning in efi_enter_virtual_mode

On 04/18/2013 12:58 PM, Matthew Garrett wrote:
> On Thu, 2013-04-18 at 20:55 +0100, Matt Fleming wrote:
> 
>> If there are machines out there that would require us to write support,
>> it's probably worth doing now instead of punting. But it sounds like
>> there aren't any.
> 
> I would expect that if there are any 32-bit UEFI systems that ship with
> BGRT support (and Darren makes it sound like that's a possibility),
> there's a realistic chance of the BGRT ending up allocated above the
> highmem barrier.

I can certainly ensure we sit below that barrier on the MinnowBoard. We
can also speak with the Intel UEFI firmware development teams to see
about making that a requirement. I don't know if we'll be successful,
but Matt, Peter, and I have recently coaxed some changes of that nature in.

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
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