* [PATCH -next] x86, doc: Add LZ4 magic number for the new compression
@ 2013-04-26 5:08 Kyungsik Lee
2013-04-26 20:19 ` H. Peter Anvin
0 siblings, 1 reply; 2+ messages in thread
From: Kyungsik Lee @ 2013-04-26 5:08 UTC (permalink / raw)
To: Andrew Morton, H. Peter Anvin, Rob Landley
Cc: linux-doc, linux-kernel, linux-kbuild, x86, celinux-dev,
hyojun.im, chan.jeong, raphael.andy.lee, Kyungsik Lee,
Ingo Molnar, Thomas Gleixner, Russell King, Borislav Petkov,
Florian Fainelli, Yann Collet
Documentation/x86/boot.txt is updated to list the LZ4 magic number.
This LZ4 magic number is used for the new compression format.
Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Yann Collet <yann.collet.73@gmail.com>
---
Documentation/x86/boot.txt | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 3840b6f..fc66d42 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -657,9 +657,10 @@ Protocol: 2.08+
uncompressed data should be determined using the standard magic
numbers. The currently supported compression formats are gzip
(magic numbers 1F 8B or 1F 9E), bzip2 (magic number 42 5A), LZMA
- (magic number 5D 00), and XZ (magic number FD 37). The uncompressed
- payload is currently always ELF (magic number 7F 45 4C 46).
-
+ (magic number 5D 00), XZ (magic number FD 37), and LZ4 (magic number
+ 02 21). The uncompressed payload is currently always ELF (magic
+ number 7F 45 4C 46).
+
Field name: payload_length
Type: read
Offset/size: 0x24c/4
--
1.8.1.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH -next] x86, doc: Add LZ4 magic number for the new compression
2013-04-26 5:08 [PATCH -next] x86, doc: Add LZ4 magic number for the new compression Kyungsik Lee
@ 2013-04-26 20:19 ` H. Peter Anvin
0 siblings, 0 replies; 2+ messages in thread
From: H. Peter Anvin @ 2013-04-26 20:19 UTC (permalink / raw)
To: Kyungsik Lee
Cc: Andrew Morton, Rob Landley, linux-doc, linux-kernel, linux-kbuild,
x86, celinux-dev, hyojun.im, chan.jeong, raphael.andy.lee,
Ingo Molnar, Thomas Gleixner, Russell King, Borislav Petkov,
Florian Fainelli, Yann Collet
On 04/25/2013 10:08 PM, Kyungsik Lee wrote:
> Documentation/x86/boot.txt is updated to list the LZ4 magic number.
> This LZ4 magic number is used for the new compression format.
>
> Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Russell King <rmk@arm.linux.org.uk>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Florian Fainelli <florian@openwrt.org>
> Cc: Yann Collet <yann.collet.73@gmail.com>
> ---
> Documentation/x86/boot.txt | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
> index 3840b6f..fc66d42 100644
> --- a/Documentation/x86/boot.txt
> +++ b/Documentation/x86/boot.txt
> @@ -657,9 +657,10 @@ Protocol: 2.08+
> uncompressed data should be determined using the standard magic
> numbers. The currently supported compression formats are gzip
> (magic numbers 1F 8B or 1F 9E), bzip2 (magic number 42 5A), LZMA
> - (magic number 5D 00), and XZ (magic number FD 37). The uncompressed
> - payload is currently always ELF (magic number 7F 45 4C 46).
> -
> + (magic number 5D 00), XZ (magic number FD 37), and LZ4 (magic number
> + 02 21). The uncompressed payload is currently always ELF (magic
> + number 7F 45 4C 46).
> +
> Field name: payload_length
> Type: read
> Offset/size: 0x24c/4
>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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