Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752111AbeAJULF (ORCPT + 1 other); Wed, 10 Jan 2018 15:11:05 -0500 Received: from merlin.infradead.org ([205.233.59.134]:32996 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751333AbeAJULE (ORCPT ); Wed, 10 Jan 2018 15:11:04 -0500 Subject: Re: [PATCH 1/2] x86/PCI: add kernel option and taint it when we add a 64bit window To: =?UTF-8?Q?Christian_K=c3=b6nig?= , bhelgaas@google.com Cc: linux-kernel@vger.kernel.org References: <20180110122551.1637-1-christian.koenig@amd.com> From: Randy Dunlap Message-ID: <2f4070ea-b345-6fb9-7ef7-c87be0bb085f@infradead.org> Date: Wed, 10 Jan 2018 12:10:57 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <20180110122551.1637-1-christian.koenig@amd.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On 01/10/18 04:25, Christian König wrote: > Only try to enable a 64bit window on AMD CPUs when pci=big_root_window is > specified and taint the kernel when we add the window. > > Signed-off-by: Christian König > --- > arch/x86/include/asm/pci_x86.h | 1 + > arch/x86/pci/common.c | 5 +++++ > arch/x86/pci/fixup.c | 4 ++++ > 3 files changed, 10 insertions(+) > Please update Documentation/admin-guide/kernel-parameters.txt with this new option of "pci=". -- ~Randy