linux-kernel - Re: [RFC -mm 1/2] i386/x86

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Message-Id: <1190077907.12429.5.camel@caritas-dev.intel.com>
Date:	Tue, 18 Sep 2007 09:11:47 +0800
From:	"Huang, Ying" <ying.huang@...el.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andi Kleen <ak@...e.de>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	akpm@...ux-foundation.org, Yinghai Lu <yhlu.kernel@...il.com>,
	Chandramouli Narayanan <mouli@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC -mm 1/2] i386/x86_64 boot: setup data

On Mon, 2007-09-17 at 08:30 -0700, H. Peter Anvin wrote:
> Huang, Ying wrote:
> > This patch add a field of 64-bit physical pointer to NULL terminated
> > single linked list of struct setup_data to real-mode kernel
> > header. This is used to define a more extensible boot parameters
> > passing mechanism.
> 
> You MUST NOT add a field like this without changing the version number,
> and, since you expect to enter the kernel at the PM entrypoint, you
> better *CHECK* that version number before ever descending down the chain.
> 

I forgot changing the version number in boot/head.S. I will add it. And
I will add version number checking before descending down the chain.

Best Regards,
Huang Ying
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