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Date:   Mon, 15 Apr 2019 18:57:25 +0800
From:   Chen Zhou <>
To:     <>, <>, <>,
        <>, <>,
        <>, <>,
        <>, <>
CC:     <>, <>,
        <>, <>,
        <>, <>,
        Chen Zhou <>
Subject: [PATCH v4 5/5] kdump: update Documentation about crashkernel on arm64

Now we support crashkernel=X,[high,low] on arm64, update the

Signed-off-by: Chen Zhou <>
 Documentation/admin-guide/kernel-parameters.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 308af3b..a055983 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -715,14 +715,14 @@
 			Documentation/kdump/kdump.txt for an example.
-			[KNL, x86_64] range could be above 4G. Allow kernel
+			[KNL, x86_64, arm64] range could be above 4G. Allow kernel
 			to allocate physical memory region from top, so could
 			be above 4G if system have more than 4G ram installed.
 			Otherwise memory region will be allocated below 4G, if
 			It will be ignored if crashkernel=X is specified.
-			[KNL, x86_64] range under 4G. When crashkernel=X,high
+			[KNL, x86_64, arm64] range under 4G. When crashkernel=X,high
 			is passed, kernel could allocate physical memory region
 			above 4G, that cause second kernel crash on system
 			that require some amount of low memory, e.g. swiotlb

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