From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753678AbaB1Rrm (ORCPT ); Fri, 28 Feb 2014 12:47:42 -0500 Received: from mga02.intel.com ([134.134.136.20]:25766 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753655AbaB1Rrk (ORCPT ); Fri, 28 Feb 2014 12:47:40 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,563,1389772800"; d="scan'208";a="491738884" Message-ID: <5310CBB7.4030407@linux.intel.com> Date: Fri, 28 Feb 2014 09:47:35 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: "Li, Aubrey" , Matthew Garrett CC: "alan@linux.intel.com" , linux-kernel@vger.kernel.org, Len.Brown@intel.com, Adam Williamson Subject: Re: [patch] x86: Introduce BOOT_EFI and BOOT_CF9 into the reboot sequence loop References: <53100C8D.1060001@linux.intel.com> <20140228045637.GA28257@srcf.ucam.org> <53101D1D.9010202@linux.intel.com> <20140228055629.GA847@srcf.ucam.org> <531027BE.2010807@linux.intel.com> <20140228061254.GA2226@srcf.ucam.org> <53102AB9.40600@linux.intel.com> <20140228062325.GA3246@srcf.ucam.org> <53102F3C.4020806@linux.intel.com> <20140228064413.GA4900@srcf.ucam.org> <531032A0.8090903@linux.intel.com> In-Reply-To: <531032A0.8090903@linux.intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/27/2014 10:54 PM, Li, Aubrey wrote: > On 2014/2/28 14:44, Matthew Garrett wrote: >> On Fri, Feb 28, 2014 at 02:39:56PM +0800, Li, Aubrey wrote: >> >>> Just let you know, Windows8.1 calls EFI on these boxes for reboot/shutdown. >> >> Ok, in that case we should add EFI reboot to the list once Matt's 1:1 >> mapping support has landed. The right place to try it is probably after >> the second attempt to perform an ACPI reboot. I'm still not enthusiastic >> about adding cf9 by default. >> > > I'll defer to you if no one on the list supports me to add cf9. > I believe we *had* it in the default list for a while, and it caused hangs on some systems. -hpa