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Re: [PATCH 0/3] x86_64 EFI runtime service support

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From: H. Peter Anvin <hpa@...>
To: Eric W. Biederman <ebiederm@...>
Cc: Andi Kleen <ak@...>, Yinghai Lu <yhlu.kernel@...>, Huang, Ying <ying.huang@...>, Andrew Morton <akpm@...>, Chandramouli Narayanan <mouli@...>, <linux-kernel@...>, Aaron Durbin <adurbin@...>
Subject: Re: [PATCH 0/3] x86_64 EFI runtime service support
Date: Wednesday, August 22, 2007 - 12:44 pm

Eric W. Biederman wrote:

I beg to differ, sir!

In my rewritten code, the "zeropage" is 4K of zero-initialized .bss,
into which the setup header is copied.

So any undefined field will be initialized to zero, not to whatever
assembly code happened to be there.

You know that with the old code, we got boot failures after changing the
error message in the dummy boot sector?

	-hpa
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Messages in current thread:
[PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Mon Aug 13, 3:30 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andrew Morton, (Wed Aug 15, 7:16 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Wed Aug 15, 7:22 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Thu Aug 16, 4:00 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Eric W. Biederman, (Sun Aug 19, 6:25 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Yinghai Lu, (Sun Aug 19, 7:46 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Mon Aug 20, 1:05 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, San Mehat, (Mon Aug 20, 1:20 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Matthew Garrett, (Mon Aug 20, 4:13 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Mon Aug 20, 1:14 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Thu Aug 16, 12:09 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Eric W. Biederman, (Sun Aug 19, 6:27 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Thu Aug 16, 3:52 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andrew Morton, (Wed Aug 15, 6:42 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Thu Aug 16, 3:51 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andi Kleen, (Thu Aug 16, 10:11 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Thu Aug 16, 9:25 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Fri Aug 17, 12:11 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Sun Aug 19, 11:20 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Mon Aug 20, 1:12 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andi Kleen, (Tue Aug 21, 7:33 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Tue Aug 21, 6:41 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andi Kleen, (Tue Aug 21, 7:45 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Yinghai Lu, (Tue Aug 21, 7:58 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andi Kleen, (Tue Aug 21, 9:22 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Yinghai Lu, (Wed Aug 22, 3:20 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Yinghai Lu, (Wed Aug 22, 2:43 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Andi Kleen, (Wed Aug 22, 7:11 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Eric W. Biederman, (Wed Aug 22, 10:41 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Wed Aug 22, 12:44 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, huang ying, (Wed Aug 22, 10:23 am)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Wed Aug 22, 12:28 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Wed Aug 22, 10:21 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Wed Aug 22, 10:46 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Mon Aug 20, 9:44 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, H. Peter Anvin, (Mon Aug 20, 11:54 pm)
Re: [PATCH 0/3] x86_64 EFI runtime service support, Huang, Ying, (Tue Aug 21, 12:53 am)