linux-kernel - [PATCH] kexec/kdump: Minor Documentation updates for arm64 and Image

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Message-ID: <1495085600-2645-1-git-send-email-Bharat.Bhushan@nxp.com>
Date:   Thu, 18 May 2017 11:03:20 +0530
From:   Bharat Bhushan <Bharat.Bhushan@....com>
To:     <dyoung@...hat.com>, <bhe@...hat.com>, <vgoyal@...hat.com>,
        <corbet@....net>
CC:     <kexec@...ts.infradead.org>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Bharat Bhushan <Bharat.Bhushan@....com>
Subject: [PATCH] kexec/kdump: Minor Documentation updates for arm64 and Image

This patch have minor updates in Documentation for arm64i as
relocatable kernel.
Also this patch updates documentation for using uncompressed
image "Image" which is used for ARM64.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@....com>
---
 Documentation/kdump/kdump.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 615434d..522ce13 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -112,8 +112,8 @@ There are two possible methods of using Kdump.
 2) Or use the system kernel binary itself as dump-capture kernel and there is
    no need to build a separate dump-capture kernel. This is possible
    only with the architectures which support a relocatable kernel. As
-   of today, i386, x86_64, ppc64, ia64 and arm architectures support relocatable
-   kernel.
+   of today, i386, x86_64, ppc64, ia64, arm and arm64 architectures support
+   relocatable kernel.
 
 Building a relocatable kernel is advantageous from the point of view that
 one does not have to build a second kernel for capturing the dump. But
@@ -361,6 +361,12 @@ to load dump-capture kernel.
    --dtb=<dtb-for-dump-capture-kernel> \
    --append="root=<root-dev> <arch-specific-options>"
 
+If you are using a uncompressed Image, then use following command
+to load dump-capture kernel.
+
+   kexec -p <dump-capture-kernel-Image> \
+   --initrd=<initrd-for-dump-capture-kernel> \
+   --append="root=<root-dev> <arch-specific-options>"
 
 Please note, that --args-linux does not need to be specified for ia64.
 It is planned to make this a no-op on that architecture, but for now
-- 
1.9.3