linux-kernel - Re: [patch] x86: Introduce BOOT_EFI and BOOT

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Date:	Sun, 02 Mar 2014 17:47:10 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Li, Aubrey" <aubrey.li@...ux.intel.com>,
	Matthew Garrett <mjg59@...f.ucam.org>
CC:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	"alan@...ux.intel.com" <alan@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Len.Brown@...el.com,
	Adam Williamson <awilliam@...hat.com>
Subject: Re: [patch] x86: Introduce BOOT_EFI and BOOT_CF9 into the reboot sequence loop

We are not removing BOOT_BIOS... whether or not we have it on buy default is another matter.

On March 2, 2014 5:36:02 PM PST, "Li, Aubrey" <aubrey.li@...ux.intel.com> wrote:
>On 2014/3/3 8:18, H. Peter Anvin wrote:
>> On 03/02/2014 04:07 PM, Matthew Garrett wrote:
>>> On Mon, Mar 03, 2014 at 07:23:06AM +0800, Li, Aubrey wrote:
>>>
>>>> Windows doesn't do because there is no 32/64 mixed windows and EFI
>on
>>>> the planet. Since the silicon is actually 64 bit, I failed to see a
>>>> reason to refuse the user install 64bit linux on it. So we
>encountered a
>>>> case windows didn't.
>>>
>>> And we'll call the 32 bit EFI call, so what's the problem?
>
>No problem after Fleming's mixed mode is landed.
>
>>>
>>>> So, you didn't mention BOOT_BIOS, if you don't want to add
>BOOT_BIOS,
>>>> and you also don't like DMI entires, how do you want to deal with
>the
>>>> machines requiring BOOT_BIOS to reboot their machine?
>>>
>>> I was planning on ignoring them.
>>>
>
>Well, I'm fine to ignore BOOT_BIOS because I don't have one in hand,
>but
>I'll bother you again with the same logic when I have one, heihei.
>Do you need me to refine the patch to remove BOOT_BIOS?
>
>> 
>> I suspect we'll never get away from having a DMI table, if nothing
>else
>> because we can't test enough, but the current situation where it
>seems
>> like we need to add every since Dell box to the DMI table is clearly
>broken.
>> 
>> 	-hpa
>> 
>Agree, definitely.
>
>Thanks,
>-Aubrey

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