linux-kernel - Re: EFI runtime-services on x86

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Date:	Tue, 3 Aug 2010 23:15:37 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Huang Ying <ying.huang@...el.com>,
	"Tang, Feng" <feng.tang@...el.com>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: EFI runtime-services on x86_64

On Tue, Aug 03, 2010 at 02:58:10PM -0700, Eric W. Biederman wrote:

> Only if you have EFI runtime services enabled in your kernel.  You can
> skip the efi junk and the kernel runs just fine.  Doing what we do on
> every other platform which appears to be a combination of ACPI and
> direct hardware access appears to be good enough, and that is a path
> that actually gets tested regularly.

I think wanting to set the nvram variables so that your bootloader works 
is a pretty typical usecase...
-- 
Matthew Garrett | mjg59@...f.ucam.org
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