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Date: Mon, 23 Dec 2013 15:25:41 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>, joeyli <jlee@suse.com>
CC: Matt Fleming <matt@console-pimps.org>, JBeulich@suse.com,
        linux-kernel@vger.kernel.org, rtc-linux@googlegroups.com,
        x86@kernel.org,
        "linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
        linux-acpi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Matt Fleming <matt.fleming@intel.com>
Subject: Re: [PATCH 02/14] x86-64/efi: Use EFI to deal with platform wall
 clock (again)
References: <1387439515-8926-1-git-send-email-jlee@suse.com>	<1387448416-11672-1-git-send-email-jlee@suse.com>	<20131219104908.GE3145@console-pimps.org>	<1387459939.3539.4092.camel@linux-s257.site> <20131220112955.75e82a86@alan.etchedpixels.co.uk>
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On 12/20/2013 03:29 AM, One Thousand Gnomes wrote:
> On Thu, 19 Dec 2013 21:32:19 +0800
> joeyli <jlee@suse.com> wrote:
> 
>> 於 四，2013-12-19 於 10:49 +0000，Matt Fleming 提到：
>>> On Thu, 19 Dec, at 06:20:16PM, Lee, Chun-Yi wrote:
>>>> From: Jan Beulich <JBeulich@suse.com>
>>>>
>>>> Other than ix86, x86-64 on EFI so far didn't set the
>>>> {g,s}et_wallclock accessors to the EFI routines, thus
>>>> incorrectly using raw RTC accesses instead.
> 
> Probably wise.
> 
> Before anyone reverts that please make sure it also works on EFI32,
> because right now we crash and burn on multiple EFI32 tablets querying
> the time.
> 

Quite -- we in fact did just the opposite (checkin 04bf9ba720fc).

	-hpa