xref: /openbmc/linux/lib/xz/Kconfig (revision ba61bb17)
1config XZ_DEC
2	tristate "XZ decompression support"
3	select CRC32
4	help
5	  LZMA2 compression algorithm and BCJ filters are supported using
6	  the .xz file format as the container. For integrity checking,
7	  CRC32 is supported. See Documentation/xz.txt for more information.
8
9if XZ_DEC
10
11config XZ_DEC_X86
12	bool "x86 BCJ filter decoder" if EXPERT
13	default y
14	select XZ_DEC_BCJ
15
16config XZ_DEC_POWERPC
17	bool "PowerPC BCJ filter decoder" if EXPERT
18	default y
19	select XZ_DEC_BCJ
20
21config XZ_DEC_IA64
22	bool "IA-64 BCJ filter decoder" if EXPERT
23	default y
24	select XZ_DEC_BCJ
25
26config XZ_DEC_ARM
27	bool "ARM BCJ filter decoder" if EXPERT
28	default y
29	select XZ_DEC_BCJ
30
31config XZ_DEC_ARMTHUMB
32	bool "ARM-Thumb BCJ filter decoder" if EXPERT
33	default y
34	select XZ_DEC_BCJ
35
36config XZ_DEC_SPARC
37	bool "SPARC BCJ filter decoder" if EXPERT
38	default y
39	select XZ_DEC_BCJ
40
41endif
42
43config XZ_DEC_BCJ
44	bool
45	default n
46
47config XZ_DEC_TEST
48	tristate "XZ decompressor tester"
49	default n
50	depends on XZ_DEC
51	help
52	  This allows passing .xz files to the in-kernel XZ decoder via
53	  a character special file. It calculates CRC32 of the decompressed
54	  data and writes diagnostics to the system log.
55
56	  Unless you are developing the XZ decoder, you don't need this
57	  and should say N.
58