Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp4435374yba; Wed, 17 Apr 2019 11:24:58 -0700 (PDT) X-Google-Smtp-Source: APXvYqyCiEuLqHNApy+GKhjpleTP2cZz4mhKQmmKl31Cf3jW9T/vTcS0Og0PPlnkCwLm4Us2Fv2l X-Received: by 2002:aa7:8518:: with SMTP id v24mr91366431pfn.219.1555525498071; Wed, 17 Apr 2019 11:24:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555525498; cv=none; d=google.com; s=arc-20160816; b=M9uwWFkGV3knFe86MMq4+ldZXx2W3S0cKyJfQk5exc5Wli45M4OrtUCC/x+VEKpc6A 8vwkFEyd0rupLzSpwr62N/xV36HDxTwPDtZiFyD7pmq44tbz/i4hGVRGcFrk3pGll4Gs rjudGSYriNWkKdVa7VTXINV+9z2oxX+1cVGPnfnbxHayphajyWJ2xKnru6+MS3hI+jLQ jWpgatoaTSJEA5oOquMVvkWAtQ/AlujXSYG9uWK2+W0Ww8VdazF4wWohcDj7a5jMbLYT iiD5iC7JCDwN25NCJF3tV2yJEI+zpk18/AvJ+0QAFksZMUjUsf9wOEk1OFsxN+CajLY9 fRDQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=1POMudkOg7ZMnCSs+YnvPunwdXlUfWUqcoeFnoOiFR4=; b=t1tHv99jMzeSRbNjZr5ifXQOcG4IBnhdWOIyaAcnb120IASwur7Td6h/nSpOatdhl2 1D50+vj+lmZpSYm24Rl7BYBXYyRq1xml64riUpK7TRF6hKeikhgdb8v1dgfn14TY2ns+ bbgzyuGNnhJSsuSHR43zHWAfyvIdBQ67c7V00oFXF4IvKhifIQnIa8XxIw/hVIf5ZC+p IlKJp3pJbM0u/CmpCibNAMtFZ712xYR5tAo79AL56bHw1BucDoe/g5EmQP5uFNbwSaTj 0nlkBiuafYt+EQqiynExEiCGhMuCO8GdPb8Ebx0TJf1oaJT/gmMh3WGJubzt4+UjEtxO 1m/w== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@gmail.com header.s=20161025 header.b=P8L+gqS1; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i13si48622436pgs.33.2019.04.17.11.24.42; Wed, 17 Apr 2019 11:24:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@gmail.com header.s=20161025 header.b=P8L+gqS1; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731576AbfDQSXr (ORCPT + 99 others); Wed, 17 Apr 2019 14:23:47 -0400 Received: from mail-wr1-f53.google.com ([209.85.221.53]:34100 "EHLO mail-wr1-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728373AbfDQSXr (ORCPT ); Wed, 17 Apr 2019 14:23:47 -0400 Received: by mail-wr1-f53.google.com with SMTP id w16so3249672wrl.1; Wed, 17 Apr 2019 11:23:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=1POMudkOg7ZMnCSs+YnvPunwdXlUfWUqcoeFnoOiFR4=; b=P8L+gqS1jjv6UZdPpAUWU48A+vC9wN8UGx25cMYdiio1+TRuRdwC+M8Vl/jEZnYKY3 emi6v/y7+tOCEOUc13PhoipVcyR5MgTus4xhCd1x06m/khdKHPXwpD2KzlgDuIq7mgqb 6MrgLAqpoYwxaJMpWhykh8ZMlK4ir3F7c3QRIDyfL0ddXtWKwuTg0bbxvUTf2LmPE/Wg OATd8B57YgymaWiwLaezOYwhZIPrLG1ZmRWlV77QFwphT6KR0RH9uRG62udVP/4zTHw3 9Xdz5Lt25g5DY6O74wrAoiUXnRT1aSbgXp7U9Ruw0yn0s3UvfmG3kj6RXeoNRUS8gt4r kojg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=1POMudkOg7ZMnCSs+YnvPunwdXlUfWUqcoeFnoOiFR4=; b=uoGOnJD3/2dOTWlt35vIOvg3F0U9/P4afb4JaMPN47eAFoiPD73hcnH8xISlegX0E4 CkvyF0OqMRnUKRwccXzw9HkvWtky98hiIxV/6/nkU319m8tTlGJbnsVIG9Dwe+CETdxV oAJ+P8eUpDOen0kg/ymBI0G1bS5++/kTaWlxN2mgjhGwnmbOMLhStiAH5sTd8vjRW1Yw u7YvYsP+aq6i0RnDks2zaaacwsGWFJYF8Fnhni+5mIJf2dveS5u661DzlQ+RYDuHpErg KheHUHjjF1mqEIHn5uDR0c7JbSPrW/SCCZxKJIly7wUe2pf4JrW/I0QKF0g+mgGD1Fgt +zlQ== X-Gm-Message-State: APjAAAUEMJ4uwDMsrtU8CxuZLKT4ggnefNVFV61U2ccaZ0kb5d7PrJAp O4hX5OmQ1sOiZV2QHz0tYHQ= X-Received: by 2002:adf:ef0c:: with SMTP id e12mr56645812wro.170.1555525425169; Wed, 17 Apr 2019 11:23:45 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id o10sm88391387wru.54.2019.04.17.11.23.43 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 17 Apr 2019 11:23:44 -0700 (PDT) Date: Wed, 17 Apr 2019 20:23:41 +0200 From: Ingo Molnar To: "Prakhya, Sai Praneeth" Cc: Ard Biesheuvel , "H. Peter Anvin" , Daniel Drake , Peter Zijlstra , Borislav Petkov , Thomas Gleixner , Linux Kernel , Linus Torvalds , Jian-Hong Pan , Matt Fleming , linux-efi , "Brown, Len" , "linux-tip-commits@vger.kernel.org" , Endless Linux Upstreaming Team Subject: Re: EFI reboot vs. ACPI reboot (was: Re: [tip:x86/urgent] x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T) Message-ID: <20190417182341.GA5140@gmail.com> References: <20190412080152.3718-1-jian-hong@endlessm.com> <20190416082042.GA69717@gmail.com> <20190417061650.GA31060@gmail.com> <17516564-37AC-4F77-9C0D-0DD71F8045EA@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Prakhya, Sai Praneeth wrote: > I will ask around internally to check if it is a good idea to make EFI > reboot the default method when the machine is booted in EFI mode. Or whether there's some robust signature that indicates "modern EFI system where EFI reboot is the primary method"? Major EFI version or ACPI version or such? Thanks, Ingo