linux-kernel - [PATCH v9 5/5] document: add document for kaslr_boot

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Message-ID: <20180228105105.11487-6-fanc.fnst@cn.fujitsu.com>
Date:   Wed, 28 Feb 2018 18:51:05 +0800
From:   Chao Fan <fanc.fnst@...fujitsu.com>
To:     <linux-kernel@...r.kernel.org>, <x86@...nel.org>, <hpa@...or.com>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <bhe@...hat.com>,
        <keescook@...omium.org>, <yasu.isimatu@...il.com>
CC:     <indou.takao@...fujitsu.com>, <lcapitulino@...hat.com>,
        Chao Fan <fanc.fnst@...fujitsu.com>,
        <linux-doc@...r.kernel.org>, Jonathan Corbet <corbet@....net>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: [PATCH v9 5/5] document: add document for kaslr_boot_mem

Cc: linux-doc@...r.kernel.org
Cc: Jonathan Corbet <corbet@....net>
Cc: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Chao Fan <fanc.fnst@...fujitsu.com>
---
 Documentation/admin-guide/kernel-parameters.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b37c1c30c16f..23232c9ffa39 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2389,6 +2389,16 @@
 			allocations which rules out almost all kernel
 			allocations. Use with caution!
 
+	kaslr_boot_mem=nn[KMG][@ss[KMG]]
+			[KNL] Force usage of a specific region of memory
+			for KASLR during kernel decompression stage.
+			Region of usable memory is from ss to ss+nn. If ss is
+			omitted, it is equivalent to kaslr_boot_mem=nn[KMG]@0.
+			Multiple regions can be specified, comma delimited.
+			Notice: only support 4 regions at most now.
+			Example:
+			kaslr_boot_mem=1G,500M@2G,1G@4G
+
 	MTD_Partition=	[MTD]
 			Format: <name>,<region-number>,<size>,<offset>
 
-- 
2.14.3