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Message-ID: <558E0913.7020501@huawei.com>
Date: Sat, 27 Jun 2015 10:23:15 +0800
From: Xishi Qiu <qiuxishi@huawei.com>
MIME-Version: 1.0
Subject: [RFC v2 PATCH 1/8] mm: add a new config to manage the code
References: <558E084A.60900@huawei.com>
In-Reply-To: <558E084A.60900@huawei.com>
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To: Andrew Morton <akpm@linux-foundation.org>, "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@kernel.org>, "Luck, Tony" <tony.luck@intel.com>, Hanjun Guo <guohanjun@huawei.com>, Xiexiuqi <xiexiuqi@huawei.com>, leon@leon.nu, Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Dave Hansen <dave.hansen@intel.com>, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Vlastimil Babka <vbabka@suse.cz>, Mel Gorman <mgorman@suse.de>
Cc: Xishi Qiu <qiuxishi@huawei.com>, Linux MM <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>

This patch introduces a new config called "CONFIG_ACPI_MIRROR_MEMORY", set it
off by default.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
---
 mm/Kconfig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/mm/Kconfig b/mm/Kconfig
index 390214d..c40bb8b 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 && MEMORY_FAILURE
+	default n
+	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


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