Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753345AbbFDNME (ORCPT ); Thu, 4 Jun 2015 09:12:04 -0400 Received: from szxga01-in.huawei.com ([58.251.152.64]:10734 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752355AbbFDNMD (ORCPT ); Thu, 4 Jun 2015 09:12:03 -0400 Message-ID: <55704B0C.1000308@huawei.com> Date: Thu, 4 Jun 2015 20:56:44 +0800 From: Xishi Qiu User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Xishi Qiu , Andrew Morton , , Yinghai Lu , "H. Peter Anvin" , Thomas Gleixner , , Xiexiuqi , Hanjun Guo , "Luck, Tony" CC: Linux MM , LKML Subject: [RFC PATCH 01/12] mm: add a new config to manage the code References: <55704A7E.5030507@huawei.com> In-Reply-To: <55704A7E.5030507@huawei.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.25.179] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1022 Lines: 36 This patch introduces a new config called "CONFIG_ACPI_MIRROR_MEMORY", it is used to on/off the feature. Signed-off-by: Xishi Qiu --- mm/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/mm/Kconfig b/mm/Kconfig index 390214d..4f2a726 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -200,6 +200,14 @@ config MEMORY_HOTREMOVE depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE depends on MIGRATION +config MEMORY_MIRROR + bool "Address range mirroring support" + depends on X86 && NUMA + default y + help + This feature depends on hardware and firmware support. + ACPI or EFI records the mirror info. + # # If we have space for more page flags then we can enable additional # optimizations and functionality. -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/