linux_dsm_epyc7002/arch/x86/boot/compressed
Lasse Collin 303148045a x86: support XZ-compressed kernel
This integrates the XZ decompression code to the x86 pre-boot code.

mkpiggy.c is updated to reserve about 32 KiB more buffer safety margin for
kernel decompression.  It is done unconditionally for all decompressors to
keep the code simpler.

The XZ decompressor needs around 30 KiB of heap, so the heap size is
increased to 32 KiB on both x86-32 and x86-64.

Documentation/x86/boot.txt is updated to list the XZ magic number.

With the x86 BCJ filter in XZ, XZ-compressed x86 kernel tends to be a few
percent smaller than the equivalent LZMA-compressed kernel.

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alain Knaff <alain@knaff.lu>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Cc: Phillip Lougher <phillip@lougher.demon.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13 08:03:25 -08:00
..
.gitignore x86, boot: add new generated files to the appropriate .gitignore files 2009-06-02 21:13:30 -07:00
cmdline.c x86, setup: enable early console output from the decompressor 2010-08-02 20:32:20 -07:00
early_serial_console.c x86, setup: enable early console output from the decompressor 2010-08-02 20:32:20 -07:00
head_32.S x86, setup: Allow global variables and functions in the decompressor 2010-08-02 15:34:44 -07:00
head_64.S x86, cpu: Rename verify_cpu_64.S to verify_cpu.S 2010-11-10 15:42:42 -08:00
Makefile x86: support XZ-compressed kernel 2011-01-13 08:03:25 -08:00
misc.c x86: support XZ-compressed kernel 2011-01-13 08:03:25 -08:00
misc.h x86, setup: move isdigit.h to ctype.h, header files on top. 2010-08-02 21:07:20 -07:00
mkpiggy.c x86: support XZ-compressed kernel 2011-01-13 08:03:25 -08:00
relocs.c Revert "endian: #define __BYTE_ORDER" 2010-05-26 08:30:15 -07:00
string.c x86, setup: move isdigit.h to ctype.h, header files on top. 2010-08-02 21:07:20 -07:00
vmlinux.lds.S x86, setup: Allow global variables and functions in the decompressor 2010-08-02 15:34:44 -07:00