2022-06-19 17:22:43

by Jisheng Zhang

Subject: [PATCH] arm64: boot: add zstd support

Support build the zstd compressed Image.zst. Similar as other
compressed formats, the Image.zst is not self-decompressing and
the bootloader still needs to handle decompression before
launching the kernel image.

Signed-off-by: Jisheng Zhang <[email protected]>
---
arch/arm64/boot/Makefile | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/Makefile b/arch/arm64/boot/Makefile
index ebe80faab883..a0e3dedd2883 100644
--- a/arch/arm64/boot/Makefile
+++ b/arch/arm64/boot/Makefile
@@ -16,7 +16,7 @@

OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S

-targets := Image Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo
+targets := Image Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo Image.zst

$(obj)/Image: vmlinux FORCE
$(call if_changed,objcopy)
@@ -35,3 +35,6 @@ $(obj)/Image.lzma: $(obj)/Image FORCE

$(obj)/Image.lzo: $(obj)/Image FORCE
$(call if_changed,lzo)
+
+$(obj)/Image.zst: $(obj)/Image FORCE
+ $(call if_changed,zstd)
--
2.34.1

2022-06-23 20:04:58

by Will Deacon

Subject: Re: [PATCH] arm64: boot: add zstd support

On Mon, 20 Jun 2022 01:06:57 +0800, Jisheng Zhang wrote:
> Support build the zstd compressed Image.zst. Similar as other
> compressed formats, the Image.zst is not self-decompressing and
> the bootloader still needs to handle decompression before
> launching the kernel image.
>
>

Applied to arm64 (for-next/misc), thanks!

[1/1] arm64: boot: add zstd support
https://git.kernel.org/arm64/c/9f6a503d5238

Cheers,
--
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev