Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755501AbbFSXUm (ORCPT ); Fri, 19 Jun 2015 19:20:42 -0400 Received: from v094114.home.net.pl ([79.96.170.134]:57331 "HELO v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755987AbbFSXU1 (ORCPT ); Fri, 19 Jun 2015 19:20:27 -0400 From: "Rafael J. Wysocki" To: Lv Zheng Cc: "Rafael J. Wysocki" , Len Brown , Lv Zheng , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Bob Moore Subject: Re: [PATCH 03/32] ACPICA: Hardware: Enable 64-bit firmware waking vector for selected FACS. Date: Sat, 20 Jun 2015 01:46:29 +0200 Message-ID: <7864931.8U5Ony9nlm@vostro.rjw.lan> User-Agent: KMail/4.11.5 (Linux/4.1.0-rc5+; KDE/4.11.5; x86_64; ; ) In-Reply-To: <261af597362906597365810a650c8e5c189e86da.1434684719.git.lv.zheng@intel.com> References: <261af597362906597365810a650c8e5c189e86da.1434684719.git.lv.zheng@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1114 Lines: 25 On Friday, June 19, 2015 11:38:28 AM Lv Zheng wrote: > ACPICA commit 7aa598d711644ab0de5f70ad88f1e2de253115e4 > > The root cause of the reported bug might be one of the followings: > 1. BIOS may favor the 64-bit firmware waking vector address when the > version of the FACS is greater than 0 and Linux currently only supports > resuming from the real mode, so the 64-bit firmware waking vector has > never been set and might be invalid to BIOS while the commit enables > higher version FACS. > 2. BIOS may favor the FACS reported via the "FIRMWARE_CTRL" field in the > FADT while the commit doesn't set the firmware waking vector address of > the FACS reported by "FIRMWARE_CTRL", it only sets the firware waking > vector address of the FACS reported by "X_FIRMWARE_CTRL". I need to go through patches [03-07/32] in detial. I need to understand clearly what's going on in them, but I'm too tired for that today. I'll get back to them next week. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/