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Date: Sun, 12 Nov 2000 12:29:10 +0100
From: Andrea Arcangeli <andrea@suse.de>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>,
        Tigran Aivazian <tigran@veritas.com>,
        "H. Peter Anvin" <hpa@transmeta.com>, Max Inux <maxinux@bigfoot.com>,
        "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: bzImage ~ 900K with i386 test11-pre2
Message-ID: <20001112122910.A2366@athlon.random>
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In-Reply-To: <m1ofzmcne5.fsf@frodo.biederman.org>; from ebiederm@xmission.com on Sat, Nov 11, 2000 at 12:35:46PM -0700
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On Sat, Nov 11, 2000 at 12:35:46PM -0700, Eric W. Biederman wrote:
> With respect to .bss issues we should clear it before we set up page tables.

We could sure do that but that's a minor win since we still need a
large mapping (more than 1 pagetable) for the bootmem allocator. (and we need
at least 1 pagetable setup as ident mapping at 0x100000 for the instruction
where we enable paging)

> We also do stupid things like set segment registers before setting up
> a GDT.  Yes we set them in setup.S but it is still a stupid non-obvious
		     ^^^^
I think you meant: we set "it" (gdt_48) up.

> dependency.  We we can do it in setup.S

I removed that dependency in x86-64.

Andrea
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