From: Andi Kleen <ak@novell.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
"Huang, Ying" <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
Chandramouli Narayanan <mouli@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basic runtime service support
Date: Thu, 25 Oct 2007 19:06:09 +0200 [thread overview]
Message-ID: <200710251906.10210.ak@novell.com> (raw)
In-Reply-To: <m1r6jj5e27.fsf@ebiederm.dsl.xmission.com>
> Especially for accessing the real time clock that has a well
> defined hardware interface going through efi an additional
> software emulation layer looks like asking for trouble.
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
next prev parent reply other threads:[~2007-10-25 17:06 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-25 6:57 [PATCH 1/3 -v4] x86_64 EFI runtime service support: EFI basic runtime service support Huang, Ying
2007-10-25 16:09 ` Thomas Gleixner
2007-10-25 16:28 ` H. Peter Anvin
2007-10-25 16:55 ` Eric W. Biederman
2007-10-25 16:56 ` Arjan van de Ven
2007-10-25 17:05 ` H. Peter Anvin
2007-10-25 17:39 ` Eric W. Biederman
2007-10-25 17:51 ` H. Peter Anvin
2007-10-25 18:04 ` Eric W. Biederman
2007-10-25 20:36 ` H. Peter Anvin
2007-10-25 22:20 ` Eric W. Biederman
2007-10-25 22:29 ` H. Peter Anvin
2007-10-26 2:31 ` Huang, Ying
2007-10-26 2:14 ` Huang, Ying
2007-10-25 17:06 ` Eric W. Biederman
2007-10-26 1:28 ` Huang, Ying
2007-10-25 17:06 ` Andi Kleen [this message]
2007-10-25 17:08 ` H. Peter Anvin
2007-10-25 17:30 ` Eric W. Biederman
2007-10-26 2:12 ` Huang, Ying
2007-10-26 1:03 ` Huang, Ying
2007-10-26 8:48 ` Thomas Gleixner
2007-10-26 9:30 ` Huang, Ying
2007-10-26 10:20 ` Thomas Gleixner
2007-10-26 11:37 ` Andi Kleen
2007-10-26 11:31 ` Alan Cox
2007-10-26 17:00 ` H. Peter Anvin
2007-10-29 1:05 ` Huang, Ying
2007-10-26 3:36 ` Huang, Ying
2007-10-26 4:11 ` H. Peter Anvin
2007-10-25 17:01 ` Eric W. Biederman
2007-10-26 1:17 ` Huang, Ying
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