linux-kernel - Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basic runtime service support

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Message-ID: <m1y7dr3xha.fsf@ebiederm.dsl.xmission.com>
Date:	Thu, 25 Oct 2007 11:39:13 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Huang, Ying" <ying.huang@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>, Andi Kleen <ak@...e.de>,
	Chandramouli Narayanan <mouli@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>, pjones@...hat.com
Subject: Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basic runtime service support

"H. Peter Anvin" <hpa@...or.com> writes:

> Arjan van de Ven wrote:
>> On Thu, 25 Oct 2007 10:55:44 -0600
>> ebiederm@...ssion.com (Eric W. Biederman) wrote:
>>
>>> I don't think there is a compelling case for us to use any efi
>>> services at this time
>>
>> I would almost agree with this if it wasn't for the 1 call that OS
>> installers need to tell EFI about bootloader stuff; I've cc'd Peter
>> Jones since he'll know better what OS installers need; if they don't
>> need it after all...
>>
>
> Well, the original motivation for all of this was to enable implementation of a
> EFI framebuffer (UGA/GOP).  Now, you can say what you want about EFI (and I
> definitely have my opinion on it), but that seems legitimate to me.

To be very clear.  I think we need the EFI boot parameters but
we certainly don't runtime services to implement an EFI framebuffer.

Eric
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