From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001 From: hc <hc@nodka.com> Date: Tue, 20 Feb 2024 01:20:52 +0000 Subject: [PATCH] add new system file --- kernel/usr/Kconfig | 49 ++++++++++++++++++++++--------------------------- 1 files changed, 22 insertions(+), 27 deletions(-) diff --git a/kernel/usr/Kconfig b/kernel/usr/Kconfig index 8b4826d..2599bc2 100644 --- a/kernel/usr/Kconfig +++ b/kernel/usr/Kconfig @@ -18,7 +18,7 @@ When multiple directories and files are specified then the initramfs image will be the aggregate of all of them. - See <file:Documentation/early-userspace/README> for more details. + See <file:Documentation/driver-api/early-userspace/early_userspace_support.rst> for more details. If you are not sure, leave it blank. @@ -54,7 +54,6 @@ config RD_GZIP bool "Support initial ramdisk/ramfs compressed using gzip" - depends on BLK_DEV_INITRD default y select DECOMPRESS_GZIP help @@ -64,7 +63,6 @@ config RD_BZIP2 bool "Support initial ramdisk/ramfs compressed using bzip2" default y - depends on BLK_DEV_INITRD select DECOMPRESS_BZIP2 help Support loading of a bzip2 encoded initial ramdisk or cpio buffer @@ -73,7 +71,6 @@ config RD_LZMA bool "Support initial ramdisk/ramfs compressed using LZMA" default y - depends on BLK_DEV_INITRD select DECOMPRESS_LZMA help Support loading of a LZMA encoded initial ramdisk or cpio buffer @@ -81,7 +78,6 @@ config RD_XZ bool "Support initial ramdisk/ramfs compressed using XZ" - depends on BLK_DEV_INITRD default y select DECOMPRESS_XZ help @@ -91,7 +87,6 @@ config RD_LZO bool "Support initial ramdisk/ramfs compressed using LZO" default y - depends on BLK_DEV_INITRD select DECOMPRESS_LZO help Support loading of a LZO encoded initial ramdisk or cpio buffer @@ -100,16 +95,23 @@ config RD_LZ4 bool "Support initial ramdisk/ramfs compressed using LZ4" default y - depends on BLK_DEV_INITRD select DECOMPRESS_LZ4 help Support loading of a LZ4 encoded initial ramdisk or cpio buffer If unsure, say N. +config RD_ZSTD + bool "Support initial ramdisk/ramfs compressed using ZSTD" + default y + depends on BLK_DEV_INITRD + select DECOMPRESS_ZSTD + help + Support loading of a ZSTD encoded initial ramdisk or cpio buffer. + If unsure, say N. + choice prompt "Built-in initramfs compression mode" - depends on INITRAMFS_SOURCE!="" - optional + depends on INITRAMFS_SOURCE != "" help This option allows you to decide by which algorithm the builtin initramfs will be compressed. Several compression algorithms are @@ -203,6 +205,17 @@ If you choose this, keep in mind that most distros don't provide lz4 by default which could cause a build failure. +config INITRAMFS_COMPRESSION_ZSTD + bool "ZSTD" + depends on RD_ZSTD + help + ZSTD is a compression algorithm targeting intermediate compression + with fast decompression speed. It will compress better than GZIP and + decompress around the same speed as LZO, but slower than LZ4. + + If you choose this, keep in mind that you may need to install the zstd + tool to be able to compress the initram. + config INITRAMFS_COMPRESSION_NONE bool "None" help @@ -215,21 +228,3 @@ filesystem image will be present in memory simultaneously endchoice - -config INITRAMFS_COMPRESSION - depends on INITRAMFS_SOURCE!="" - string - default "" if INITRAMFS_COMPRESSION_NONE - default ".gz" if INITRAMFS_COMPRESSION_GZIP - default ".bz2" if INITRAMFS_COMPRESSION_BZIP2 - default ".lzma" if INITRAMFS_COMPRESSION_LZMA - default ".xz" if INITRAMFS_COMPRESSION_XZ - default ".lzo" if INITRAMFS_COMPRESSION_LZO - default ".lz4" if INITRAMFS_COMPRESSION_LZ4 - default ".gz" if RD_GZIP - default ".lz4" if RD_LZ4 - default ".lzo" if RD_LZO - default ".xz" if RD_XZ - default ".lzma" if RD_LZMA - default ".bz2" if RD_BZIP2 - default "" -- Gitblit v1.6.2