linux-kernel - [PATCH 21/21] doc, page_alloc, acpi, mem-hotplug: Add doc for movablecore=acpi boot option.

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Message-Id: <1374220774-29974-22-git-send-email-tangchen@cn.fujitsu.com>
Date:	Fri, 19 Jul 2013 15:59:34 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	tglx@...utronix.de, mingo@...e.hu, hpa@...or.com,
	akpm@...ux-foundation.org, tj@...nel.org, trenn@...e.de,
	yinghai@...nel.org, jiang.liu@...wei.com, wency@...fujitsu.com,
	laijs@...fujitsu.com, isimatu.yasuaki@...fujitsu.com,
	izumi.taku@...fujitsu.com, mgorman@...e.de, minchan@...nel.org,
	mina86@...a86.com, gong.chen@...ux.intel.com,
	vasilis.liaskovitis@...fitbricks.com, lwoodman@...hat.com,
	riel@...hat.com, jweiner@...hat.com, prarit@...hat.com,
	zhangyanfei@...fujitsu.com, yanghy@...fujitsu.com
Cc:	x86@...nel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-acpi@...r.kernel.org
Subject: [PATCH 21/21] doc, page_alloc, acpi, mem-hotplug: Add doc for movablecore=acpi boot option.

Since we modify movablecore boot option to support
"movablecore=acpi", this patch adds doc for it.

Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
---
 Documentation/kernel-parameters.txt |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2fe6e76..7aa1099 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1714,6 +1714,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			that the amount of memory usable for all allocations
 			is not too small.
 
+	movablecore=acpi	[KNL,X86] The SRAT (System Resource Affinity
+			Table) in ACPI provides the NUMA info of the system.
+			And also, there is a Hotpluggable field in the memory
+			affinity of the table specifying which memory is
+			hotpluggable. This option enables the kernel to arrange
+			hotpluggable memory in SRAT as ZONE_MOVABLE.
+			NOTE: Any node which the kernel resides in will
+			      always be un-hotpluggable so that the kernel
+			      will always have enough memory to boot.
+
 	MTD_Partition=	[MTD]
 			Format: <name>,<region-number>,<size>,<offset>
 
-- 
1.7.1

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