Date: Wed, 22 Aug 2007 03:22:16 +0200
From: Andi Kleen <ak@suse.de>
To: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andi Kleen <ak@suse.de>, "H. Peter Anvin" <hpa@zytor.com>,
       "Huang, Ying" <ying.huang@intel.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       Chandramouli Narayanan <mouli@linux.intel.com>,
       linux-kernel@vger.kernel.org, Aaron Durbin <adurbin@google.com>
Subject: Re: [PATCH 0/3] x86_64 EFI runtime service support
Message-ID: <20070822012216.GN32640@bingen.suse.de>
References: <1187250664.15063.0.camel@caritas-dev.intel.com> <46C45B22.5090701@suse.de> <1187313920.28497.1.camel@caritas-dev.intel.com> <46C5C8C4.4060407@zytor.com> <1187580031.27947.67.camel@caritas-dev.intel.com> <46C9CB89.7020603@zytor.com> <20070821113310.GF32640@bingen.suse.de> <46CAC168.7090102@zytor.com> <20070821114548.GI32640@bingen.suse.de> <86802c440708211658j1fb2a8caj41e1bb8bffa4baf4@mail.gmail.com>
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> 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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