1 files changed, 59 insertions, 0 deletions

diff --git a/lib/xz/Kconfig b/lib/xz/Kconfig
new file mode 100644
index 000000000000..e3b6e18fdac5
--- /dev/null
+++ b/lib/xz/Kconfig
@@ -0,0 +1,59 @@
+config XZ_DEC
+        tristate "XZ decompression support"
+        select CRC32
+        help
+          LZMA2 compression algorithm and BCJ filters are supported using
+          the .xz file format as the container. For integrity checking,
+          CRC32 is supported. See Documentation/xz.txt for more information.
+
+config XZ_DEC_X86
+        bool "x86 BCJ filter decoder" if EMBEDDED
+        default y
+        depends on XZ_DEC
+        select XZ_DEC_BCJ
+
+config XZ_DEC_POWERPC
+        bool "PowerPC BCJ filter decoder" if EMBEDDED
+        default y
+        depends on XZ_DEC
+        select XZ_DEC_BCJ
+
+config XZ_DEC_IA64
+        bool "IA-64 BCJ filter decoder" if EMBEDDED
+        default y
+        depends on XZ_DEC
+        select XZ_DEC_BCJ
+
+config XZ_DEC_ARM
+        bool "ARM BCJ filter decoder" if EMBEDDED
+        default y
+        depends on XZ_DEC
+        select XZ_DEC_BCJ
+
+config XZ_DEC_ARMTHUMB
+        bool "ARM-Thumb BCJ filter decoder" if EMBEDDED
+        default y
+        depends on XZ_DEC
+        select XZ_DEC_BCJ
+
+config XZ_DEC_SPARC
+        bool "SPARC BCJ filter decoder" if EMBEDDED
+        default y
+        depends on XZ_DEC
+        select XZ_DEC_BCJ
+
+config XZ_DEC_BCJ
+        bool
+        default n
+
+config XZ_DEC_TEST
+        tristate "XZ decompressor tester"
+        default n
+        depends on XZ_DEC
+        help
+          This allows passing .xz files to the in-kernel XZ decoder via
+          a character special file. It calculates CRC32 of the decompressed
+          data and writes diagnostics to the system log.
+
+          Unless you are developing the XZ decoder, you don't need this
+          and should say N.