From: Matthew Garrett <mjg@redhat.com>
To: Jan Beulich <JBeulich@novell.com>
Cc: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
rtc-linux@googlegroups.com, dannf@hp.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: enable rtc-efi
Date: Tue, 5 Jul 2011 19:02:27 +0100 [thread overview]
Message-ID: <20110705180227.GD30531@srcf.ucam.org> (raw)
In-Reply-To: <4E12DBAB020000780004C1B2@nat28.tlf.novell.com>
On Tue, Jul 05, 2011 at 08:38:51AM +0100, Jan Beulich wrote:
> Besides a Kconfig change this just requires creating a respective
> platform device.
"During runtime, if a PC-AT CMOS device is present in the platform the
caller must synchronize access to the device before calling GetTime()."
This shouldn't be enabled on PC hardware without locking to avoid races
with direct ahrdware access.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2011-07-05 18:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 7:38 [PATCH] x86: enable rtc-efi Jan Beulich
2011-07-05 18:02 ` Matthew Garrett [this message]
2011-07-05 18:29 ` Matthew Garrett
2011-07-06 7:09 ` Jan Beulich
2011-07-06 11:42 ` Matthew Garrett
[not found] <4E16B5DB0200007800072A2D@nat28.tlf.novell.com>
2011-07-08 7:09 ` Matthew Garrett
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