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Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basic runtime service support

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From: Andi Kleen <ak@...>
To: Eric W. Biederman <ebiederm@...>
Cc: Thomas Gleixner <tglx@...>, Huang, Ying <ying.huang@...>, Andrew Morton <akpm@...>, H. Peter Anvin <hpa@...>, Ingo Molnar <mingo@...>, Chandramouli Narayanan <mouli@...>, LKML <linux-kernel@...>, Arjan van de Ven <arjan@...>
Subject: Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basic runtime service support
Date: Thursday, October 25, 2007 - 1:06 pm

> Especially for accessing the real time clock that has a well

I agree it's pointless for the hardware clock, but EFI 
also offers services to write some data to the CMOS RAM
which could be very useful to save oops data over reboot.
I don't think this can be done safely otherwise 
without BIOS cooperation.

-Andi
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Messages in current thread:
[PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basi..., Huang, Ying, (Thu Oct 25, 2:57 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 1:01 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 9:17 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Thomas Gleixner, (Thu Oct 25, 12:09 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 11:36 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Fri Oct 26, 12:11 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 9:03 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Alan Cox, (Fri Oct 26, 7:31 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Sun Oct 28, 9:05 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Fri Oct 26, 1:00 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Thomas Gleixner, (Fri Oct 26, 4:48 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Andi Kleen, (Fri Oct 26, 7:37 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Fri Oct 26, 5:30 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Thomas Gleixner, (Fri Oct 26, 6:20 am)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 12:55 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Andi Kleen, (Thu Oct 25, 1:06 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Thu Oct 25, 1:08 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 1:30 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 10:12 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Arjan van de Ven, (Thu Oct 25, 12:56 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Thu Oct 25, 1:05 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 1:39 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Thu Oct 25, 1:51 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 2:04 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Thu Oct 25, 4:36 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 10:14 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 6:20 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Thu Oct 25, 6:29 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 10:31 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Eric W. Biederman, (Thu Oct 25, 1:06 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., Huang, Ying, (Thu Oct 25, 9:28 pm)
Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI ..., H. Peter Anvin, (Thu Oct 25, 12:28 pm)