linux-kernel - Re: [PATCH 5/5] x86: Move enabling of PSE and PGE out of init_memory

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Date:	Tue, 14 Aug 2012 10:49:16 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Tejun Heo <tj@...nel.org>
Cc:	Jacob Shin <jacob.shin@....com>, X86-ML <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andreas Herrmann <andreas.herrmann3@....com>
Subject: Re: [PATCH 5/5] x86: Move enabling of PSE and PGE out of
 init_memory_mapping

On Mon, Aug 13, 2012 at 04:20:40PM -0700, Tejun Heo wrote:
> I meant the patch should come before the patch making multiple calls
> to init_memory_mapping().

Ah, this makes sense.

> > > Also, there seem to be other stuff which need to be moved out.
> > 
> > Which are those pls?
> 
> Rebuilding pgtable on each invocation?

You mean pagetable_reserve() right?

Yes, Jacob, you basically might want to carve out all functionality
from init_memory_mapping() which is independent from its start and end
args and do the carving in a pre-patch or two to 1/5.

Thanks.

-- 
Regards/Gruss,
    Boris.
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