linux-kernel - Re: [PATCH 4/8] x86 boot: allow overlapping ebda and efi memmap memory ranges

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Message-Id: <1213600062.11185.13.camel@caritas-dev.intel.com>
Date:	Mon, 16 Jun 2008 15:07:42 +0800
From:	"Huang, Ying" <ying.huang@...el.com>
To:	Paul Jackson <pj@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	Jack Steiner <steiner@....com>, Mike Travis <travis@....com>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 4/8] x86 boot: allow overlapping ebda and efi memmap
	memory ranges

On Sun, 2008-06-15 at 23:30 -0700, Paul Jackson wrote:
> From: Paul Jackson <pj@....com>
> 
> In order to support EFI firmware which places the EFI memmap within
> the EBDA (Extended BIOS Data Area), allow for the possibility that we

Boot loader places the EFI memmap,  not EFI firmware. So I think it is
better to change boot loader to avoid memory area of EBDA. Or do not
reserve EBDA on EFI system.

Best Regards,
Huang Ying

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