From: dyoung@redhat.com (Dave Young)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v20 13/14] arm64: kdump: update a kernel doc
Date: Thu, 30 Jun 2016 09:00:17 -0400 [thread overview]
Message-ID: <20160630130017.GA2987@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <ef07d5dafe5c69b621dc4ec01ef1c6f3f9753e60.1466702804.git.geoff@infradead.org>
On 06/23/16 at 05:54pm, Geoff Levand wrote:
> From: AKASHI Takahiro <takahiro.akashi@linaro.org>
>
> This patch adds arch specific descriptions about kdump usage on arm64
> to kdump.txt.
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> ---
> Documentation/kdump/kdump.txt | 15 ++++++++++++++-
> 1 file changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
> index 88ff63d..5d6da09 100644
> --- a/Documentation/kdump/kdump.txt
> +++ b/Documentation/kdump/kdump.txt
> @@ -18,7 +18,7 @@ memory image to a dump file on the local disk, or across the network to
> a remote system.
>
> Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64,
> -s390x and arm architectures.
> +s390x, arm and arm64 architectures.
>
> When the system kernel boots, it reserves a small section of memory for
> the dump-capture kernel. This ensures that ongoing Direct Memory Access
> @@ -249,6 +249,12 @@ Dump-capture kernel config options (Arch Dependent, arm)
>
> AUTO_ZRELADDR=y
>
> +Dump-capture kernel config options (Arch Dependent, arm64)
> +----------------------------------------------------------
> +
> +1) Currently, kvm will not be enabled on the dump-capture kernel even
> + if it is configured.
> +
> Extended crashkernel syntax
> ===========================
>
> @@ -305,6 +311,8 @@ Boot into System Kernel
> kernel will automatically locate the crash kernel image within the
> first 512MB of RAM if X is not given.
>
> + On arm64, use "crashkernel=Y[@X]". Note that the start address of
> + the kernel, X if explicitly specified, must be aligned to 2MiB (0x200000).
>
> Load the Dump-capture Kernel
> ============================
> @@ -327,6 +335,8 @@ For s390x:
> - Use image or bzImage
> For arm:
> - Use zImage
> +For arm64:
> + - Use vmlinux or Image
>
> If you are using a uncompressed vmlinux image then use following command
> to load dump-capture kernel.
> @@ -370,6 +380,9 @@ For s390x:
> For arm:
> "1 maxcpus=1 reset_devices"
>
> +For arm64:
> + "1 maxcpus=1 reset_devices"
> +
> Notes on loading the dump-capture kernel:
>
> * By default, the ELF headers are stored in ELF64 format to support
Looks good to me.
Acked-by: Dave Young <dyoung@redhat.com>
Thanks
Dave
next prev parent reply other threads:[~2016-06-30 13:00 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-23 17:54 [PATCH v20 00/14] arm64 kexec kernel patches Geoff Levand
2016-06-23 17:54 ` [PATCH v20 06/14] arm64/kexec: Add pr_debug output Geoff Levand
2016-06-23 17:54 ` [PATCH v20 07/14] arm64: kdump: reserve memory for crash dump kernel Geoff Levand
2016-06-23 17:54 ` [PATCH v20 04/14] arm64/kexec: Add core kexec support Geoff Levand
2016-06-27 11:18 ` James Morse
2016-06-27 14:39 ` Catalin Marinas
2016-06-27 16:29 ` James Morse
2016-06-27 17:00 ` Geoff Levand
2016-06-23 17:54 ` [PATCH v20 02/14] arm64: smp: Add function to determine if cpus are stuck in the kernel Geoff Levand
2016-06-23 17:54 ` [PATCH v20 08/14] arm64: limit memory regions based on DT property, usable-memory Geoff Levand
2016-06-23 17:54 ` [PATCH v20 11/14] arm64: kdump: add VMCOREINFO's for user-space coredump tools Geoff Levand
2016-06-23 17:54 ` [PATCH v20 10/14] arm64: kdump: add kdump support Geoff Levand
2016-06-23 17:54 ` [PATCH v20 12/14] arm64: kdump: enable kdump in the arm64 defconfig Geoff Levand
2016-06-23 17:54 ` [PATCH v20 03/14] arm64: Add back cpu reset routines Geoff Levand
2016-06-23 17:54 ` [PATCH v20 01/14] arm64: hibernate: Don't hibernate on systems with stuck CPUs Geoff Levand
2016-06-27 11:04 ` James Morse
2016-06-27 16:44 ` Geoff Levand
2016-06-23 17:54 ` [PATCH v20 05/14] arm64/kexec: Enable kexec in the arm64 defconfig Geoff Levand
2016-06-23 17:54 ` [PATCH v20 09/14] arm64: kdump: implement machine_crash_shutdown() Geoff Levand
2016-06-23 17:54 ` [PATCH v20 14/14] Documentation: dt: usable-memory and elfcorehdr nodes for arm64 kexec Geoff Levand
2016-06-23 17:54 ` [PATCH v20 13/14] arm64: kdump: update a kernel doc Geoff Levand
2016-06-30 9:00 ` Baoquan He
2016-07-01 7:37 ` AKASHI Takahiro
2016-07-01 7:45 ` Baoquan He
2016-07-04 3:04 ` AKASHI Takahiro
2016-06-30 13:00 ` Dave Young [this message]
2016-06-27 17:00 ` [PATCH v20 00/14] arm64 kexec kernel patches Catalin Marinas
2016-06-27 17:07 ` Geoff Levand
2016-06-29 0:54 ` AKASHI Takahiro
2016-06-29 9:20 ` Catalin Marinas
2016-06-30 1:46 ` AKASHI Takahiro
2016-07-01 2:39 ` Pratyush Anand
2016-07-04 7:14 ` AKASHI Takahiro
2016-07-04 10:15 ` Pratyush Anand
2016-07-15 4:17 ` Simon Horman
2016-07-15 16:18 ` Geoff Levand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160630130017.GA2987@dhcp-128-65.nay.redhat.com \
--to=dyoung@redhat.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).