From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH] rtc: Disable EFI rtc for x86 Date: Mon, 10 Nov 2014 17:04:17 +0000 Message-ID: <20141110170417.GA17286@srcf.ucam.org> References: <1412339576-17972-1-git-send-email-matt@console-pimps.org> <20141109182231.GA29337@pd.tnic> <1415618533.14686.239.camel@mfleming-mobl1.ger.corp.intel.com> <201411101723.49197@pali> <5460EB92.1090501@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <5460EB92.1090501-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Austin S Hemmelgarn Cc: Pali =?iso-8859-1?Q?Roh=E1r?= , Matt Fleming , Borislav Petkov , Mark Salter , Alessandro Zummo , rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Dave Young , "H. Peter Anvin" List-Id: linux-efi@vger.kernel.org On Mon, Nov 10, 2014 at 11:45:06AM -0500, Austin S Hemmelgarn wrote: > I agree, without it you need PC CMOS RTC support to access the RTC > on most systems, which in turn means that you have to enable the CSM > in the EFI firmware, which is annoying cause you can't easily dual > boot windows with secure boot when the CSM is enabled. CMOS RTC support doesn't depend on the CSM. -- Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org