linux-kernel - Re: [PATCH] x86: Construct 32 bit boot time page tables in native format.

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Message-ID: <47928CE3.9000008@zytor.com>
Date:	Sat, 19 Jan 2008 15:50:59 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Ian Campbell <ijc@...lion.org.uk>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [PATCH] x86: Construct 32 bit boot time page tables in native
 format.

Andi Kleen wrote:
> 
> That will break if the kernel is > 4GB won't it? Also same for pmd.
> 

The kernel can't be > 4 GB; after all, we're running here with paging 
disabled, so inherently we're < 4 GB...

	-hpa
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