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

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Message-ID: <20070822012216.GN32640@bingen.suse.de>
Date:	Wed, 22 Aug 2007 03:22:16 +0200
From:	Andi Kleen <ak@...e.de>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	Andi Kleen <ak@...e.de>, "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

> 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.

-Andi

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