linux-kernel - Re: [PATCH 32/33] x86_64: Relocatable kernel support

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Message-ID: <m1vepbx4aj.fsf@ebiederm.dsl.xmission.com>
Date:	Tue, 01 Aug 2006 20:25:08 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Andi Kleen <ak@...e.de>
Cc:	Horms <horms@...ge.net.au>,
	Jan Kratochvil <lace@...kratochvil.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 32/33] x86_64: Relocatable kernel support

Andi Kleen <ak@...e.de> writes:

> "Eric W. Biederman" <ebiederm@...ssion.com> writes:
>> 
>> When loaded with a normal bootloader the decompressor will decompress
>> the kernel to 2M and it will run there.  This both ensures the
>> relocation code is always working, and makes it easier to use 2M
>> pages for the kernel and the cpu.
>
> It would have been nicer if you had moved the uncompressor to be 64bit
> first like it was planned for a long time.

Sorry.  I wasn't really in those discussions.

I guess I could take this in some slightly smaller steps.
But this does wind up with decompressor being 64bit code.

Eric
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