Please add the new magic to Documentation/x86/boot.txt as well.
Kyungsik Lee <kyungsik.lee@xxxxxxx> wrote:
>This patch integrates the LZ4 decompression code to the x86 pre-boot
>code.
>And it depends on two patchs below
>
>lib: Add support for LZ4-compressed kernel
>decompressor: Add LZ4 decompressor module
>
>Signed-off-by: Kyungsik Lee <kyungsik.lee@xxxxxxx>
>---
> arch/x86/Kconfig | 1 +
> arch/x86/boot/compressed/Makefile | 5 ++++-
> arch/x86/boot/compressed/misc.c | 4 ++++
> 3 files changed, 9 insertions(+), 1 deletion(-)
>
>diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
>index 225543b..ab916fd 100644
>--- a/arch/x86/Kconfig
>+++ b/arch/x86/Kconfig
>@@ -63,6 +63,7 @@ config X86
> select HAVE_KERNEL_LZMA
> select HAVE_KERNEL_XZ
> select HAVE_KERNEL_LZO
>+ select HAVE_KERNEL_LZ4
> select HAVE_HW_BREAKPOINT
> select HAVE_MIXED_BREAKPOINTS_REGS
> select PERF_EVENTS
>diff --git a/arch/x86/boot/compressed/Makefile
>b/arch/x86/boot/compressed/Makefile
>index 8a84501..c275db5 100644
>--- a/arch/x86/boot/compressed/Makefile
>+++ b/arch/x86/boot/compressed/Makefile
>@@ -4,7 +4,7 @@
> # create a compressed vmlinux image from the original vmlinux
> #
>
>-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz
>vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo
>head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o
>+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz
>vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo
>vmlinux.bin.lz4 head_$(BITS).o misc.o string.o cmdline.o
>early_serial_console.o piggy.o
>
> KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
> KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
>@@ -64,12 +64,15 @@ $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
> $(call if_changed,xzkern)
> $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
> $(call if_changed,lzo)
>+$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE
>+ $(call if_changed,lz4)
>
> suffix-$(CONFIG_KERNEL_GZIP) := gz
> suffix-$(CONFIG_KERNEL_BZIP2) := bz2
> suffix-$(CONFIG_KERNEL_LZMA) := lzma
> suffix-$(CONFIG_KERNEL_XZ) := xz
> suffix-$(CONFIG_KERNEL_LZO) := lzo
>+suffix-$(CONFIG_KERNEL_LZ4) := lz4
>
> quiet_cmd_mkpiggy = MKPIGGY $@
> cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
>diff --git a/arch/x86/boot/compressed/misc.c
>b/arch/x86/boot/compressed/misc.c
>index 88f7ff6..166a0a8 100644
>--- a/arch/x86/boot/compressed/misc.c
>+++ b/arch/x86/boot/compressed/misc.c
>@@ -145,6 +145,10 @@ static int lines, cols;
> #include "../../../../lib/decompress_unlzo.c"
> #endif
>
>+#ifdef CONFIG_KERNEL_LZ4
>+#include "../../../../lib/decompress_unlz4.c"
>+#endif
>+
> static void scroll(void)
> {
> int i;
--
Sent from my mobile phone. Please excuse brevity and lack of formatting.
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