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From: "H. Peter Anvin" <hpa@zytor.com>
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)
Date: Mon, 23 Dec 2013 15:25:41 -0800	[thread overview]
Message-ID: <52B8C675.30204@zytor.com> (raw)
In-Reply-To: <20131220112955.75e82a86@alan.etchedpixels.co.uk>

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

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WARNING: multiple messages have this Message-ID (diff)
From: "H. Peter Anvin" <hpa@zytor.com>
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)
Date: Mon, 23 Dec 2013 15:25:41 -0800	[thread overview]
Message-ID: <52B8C675.30204@zytor.com> (raw)
In-Reply-To: <20131220112955.75e82a86@alan.etchedpixels.co.uk>

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


  reply	other threads:[~2013-12-23 23:26 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-19  7:51 [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME Lee, Chun-Yi
2013-12-19  7:51 ` Lee, Chun-Yi
2013-12-19  7:51 ` [PATCH 01/14] rtc-efi: fix decrease day twice when computing year days Lee, Chun-Yi
     [not found] ` <1387439515-8926-1-git-send-email-jlee-IBi9RG/b67k@public.gmane.org>
2013-12-19  7:51   ` [PATCH 03/14] rtc: block registration of rtc-cmos when CMOS RTC Not Present Lee, Chun-Yi
2013-12-19  7:51     ` Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 04/14] ACPI: Add ACPI 5.0 Time and Alarm Device driver Lee, Chun-Yi
     [not found]   ` <1387439515-8926-5-git-send-email-jlee-IBi9RG/b67k@public.gmane.org>
2013-12-19 15:22     ` H. Peter Anvin
2013-12-19 15:22       ` H. Peter Anvin
     [not found]       ` <52B30F43.1060306-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2013-12-20  5:41         ` joeyli
2013-12-20  5:41           ` joeyli
     [not found]           ` <1387518099.3539.4453.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2014-01-01  0:42             ` H. Peter Anvin
2014-01-01  0:42               ` H. Peter Anvin
     [not found]               ` <52C3647B.7000708-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2014-01-06  8:58                 ` joeyli
2014-01-06  8:58                   ` joeyli
2014-01-07  5:37                   ` H. Peter Anvin
2014-01-07  5:37                     ` H. Peter Anvin
2014-01-07 10:40                     ` joeyli
2014-01-07 10:40                       ` joeyli
2014-01-07 16:35                       ` H. Peter Anvin
2014-01-08 14:59                         ` joeyli
2014-01-08 14:59                           ` joeyli
     [not found]                           ` <1389193142.3539.6123.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2014-01-08 17:56                             ` H. Peter Anvin
2014-01-08 17:56                               ` H. Peter Anvin
     [not found]                               ` <52CD9139.2070302-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2014-01-09  3:47                                 ` joeyli
2014-01-09  3:47                                   ` joeyli
     [not found]                                   ` <1389239259.24105.2.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2014-01-09  4:00                                     ` H. Peter Anvin
2014-01-09  4:00                                       ` H. Peter Anvin
2014-01-09 12:16                                   ` Rafael J. Wysocki
2014-01-09 12:16                                     ` Rafael J. Wysocki
2014-01-02  8:09     ` Lan Tianyu
2014-01-02  8:09       ` Lan Tianyu
2014-01-06  9:20       ` joeyli
2014-01-06  9:20         ` joeyli
2013-12-19  7:51 ` [RFC PATCH 05/14] rtc: Add RTC driver of ACPI Time and Alarm Device Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 06/14] rtc-efi: register rtc-efi device when EFI enabled Lee, Chun-Yi
2013-12-19  7:51   ` Lee, Chun-Yi
2013-12-19 14:09   ` Matt Fleming
2013-12-20  4:24     ` joeyli
2013-12-20  4:24       ` joeyli
     [not found]       ` <1387513491.3539.4345.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2013-12-20  4:30         ` H. Peter Anvin
2013-12-20  4:30           ` H. Peter Anvin
2013-12-20 10:37           ` Borislav Petkov
     [not found]             ` <20131220103755.GA14784-fF5Pk5pvG8Y@public.gmane.org>
2013-12-20 15:14               ` Matthew Garrett
2013-12-20 15:14                 ` Matthew Garrett
2013-12-20 21:04                 ` H. Peter Anvin
2013-12-20 21:04                   ` H. Peter Anvin
     [not found]                   ` <52B4B0ED.7030600-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2013-12-21  1:24                     ` joeyli
2013-12-21  1:24                       ` joeyli
2013-12-21  1:51                       ` H. Peter Anvin
2013-12-21  1:51                         ` H. Peter Anvin
2013-12-21 15:34                         ` joeyli
2013-12-20 16:48               ` H. Peter Anvin
2013-12-20 16:48                 ` H. Peter Anvin
2013-12-19  7:51 ` [RFC PATCH 07/14] rtc-efi: add GMTOFF support to rtc_efi Lee, Chun-Yi
     [not found]   ` <1387439515-8926-8-git-send-email-jlee-IBi9RG/b67k@public.gmane.org>
2013-12-20 15:11     ` Matthew Garrett
2013-12-20 15:11       ` Matthew Garrett
2013-12-21  3:56       ` joeyli
2013-12-21  3:56         ` joeyli
2013-12-19  7:51 ` [RFC PATCH 08/14] rtc-efi: set uie_unsupported for indicate rtc-efi doesn't support UIE mode Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 09/14] efi: move functions of access efi time to header file for sharing Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 10/14] rtc: improve and move week day computing function to rtc header Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 11/14] rtc: switch to get/set rtc time to efi functions if CMOS RTC Not Present git set Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 12/14] efi: adjust system time base on timezone from EFI time services Lee, Chun-Yi
2013-12-19  7:51 ` [RFC PATCH 13/14] Documentation/RTC: add document of ACPI TAD and EFI TIME driver Lee, Chun-Yi
2013-12-19  7:51 ` [TEST PATCH 14/14] acpi: add early parameter to set CMOS RTC Not Present bit for testing Lee, Chun-Yi
     [not found] ` <1387448416-11672-1-git-send-email-jlee@suse.com>
     [not found]   ` <1387448416-11672-1-git-send-email-jlee-IBi9RG/b67k@public.gmane.org>
2013-12-19 10:49     ` [PATCH 02/14] x86-64/efi: Use EFI to deal with platform wall clock (again) Matt Fleming
2013-12-19 10:49       ` Matt Fleming
     [not found]       ` <20131219104908.GE3145-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-12-19 13:32         ` joeyli
2013-12-19 13:32           ` joeyli
     [not found]           ` <1387459939.3539.4092.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2013-12-20 11:29             ` One Thousand Gnomes
2013-12-20 11:29               ` One Thousand Gnomes
2013-12-23 23:25               ` H. Peter Anvin [this message]
2013-12-23 23:25                 ` H. Peter Anvin

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