1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "XZ decompression support"
6 LZMA2 compression algorithm and BCJ filters are supported using
7 the .xz file format as the container. For integrity checking,
8 CRC32 is supported. See Documentation/xz.txt for more information.
13 bool "x86 BCJ filter decoder" if EXPERT
18 bool "PowerPC BCJ filter decoder" if EXPERT
23 bool "IA-64 BCJ filter decoder" if EXPERT
28 bool "ARM BCJ filter decoder" if EXPERT
32 config XZ_DEC_ARMTHUMB
33 bool "ARM-Thumb BCJ filter decoder" if EXPERT
38 bool "SPARC BCJ filter decoder" if EXPERT
49 tristate "XZ decompressor tester"
53 This allows passing .xz files to the in-kernel XZ decoder via
54 a character special file. It calculates CRC32 of the decompressed
55 data and writes diagnostics to the system log.
57 Unless you are developing the XZ decoder, you don't need this