From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME Date: Fri, 20 Dec 2013 12:29:51 -0800 Message-ID: References: <1387439053-8711-1-git-send-email-jlee@suse.com> <52B309EB.90300@zytor.com> <1387512357.3539.4317.camel@linux-s257.site> <52B3C5F0.1060303@zytor.com> <1387552565.17961.3.camel@x230> <83120989-e634-47c0-9bae-0c7899df64ab@email.android.com> <1387558713.17961.4.camel@x230> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <1387558713.17961.4.camel@x230> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Matthew Garrett Cc: "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "samer.el-haj-mahmoud-VXdhtT5mjnY@public.gmane.org" , "jlee-IBi9RG/b67k@public.gmane.org" , "bp-l3A5Bk7waGM@public.gmane.org" , "a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org" , "Elliott-VXdhtT5mjnY@public.gmane.org" , "werner-IBi9RG/b67k@public.gmane.org" , "rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org" , "x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org" , "rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org" , "oneukum-l3A5Bk7waGM@public.gmane.org" , "linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "trenn-l3A5Bk7waGM@public.gmane.org" , "JBeulich-IBi9RG/b67k@public.gmane.org" , "linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org" List-Id: linux-efi@vger.kernel.org Yes, but the TZ isn't all that critical, either. It certainly doesn't matter at all for a pure Linux system. Matthew Garrett wrote: >On Fri, 2013-12-20 at 08:57 -0800, H. Peter Anvin wrote: >> But we prefer the TAD for that. The case where the EFI runtime is >the only source of that info is problematic as they are known to not >work at runtime. We could collect it at boot and then never change it, >although you end up in definitional issues between EFI and the hw RTC. > >Most shipping UEFI hardware has no TAD. -- Sent from my mobile phone. Please pardon brevity and lack of formatting.