linux-kernel - Re: [PATCH 0/3] x86_64 EFI runtime service support

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Message-ID: <86802c440708212343x3b1438d3m4bbbfbd04db1f1ef@mail.gmail.com>
Date:	Tue, 21 Aug 2007 23:43:38 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Andi Kleen" <ak@...e.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"Huang, Ying" <ying.huang@...el.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Chandramouli Narayanan" <mouli@...ux.intel.com>,
	linux-kernel@...r.kernel.org, "Aaron Durbin" <adurbin@...gle.com>
Subject: Re: [PATCH 0/3] x86_64 EFI runtime service support

On 8/21/07, Andi Kleen <ak@...e.de> wrote:
> > current LinuxBIOS's path: the elfboot in LinuxBIOS will prepare the
> > e820 table, and jump to startup_32 in kernel. is that not good and
> > simple?
>
> The problem is that the zero page cannot be changed at all in this
> setup. Or rather it can be only changed by breaking LinuxBios.

So you want to construct e820 table in x86_boot_params from LinuxBIOS
memmap in head64.c?

YH
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