Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757336Ab3CEQRf (ORCPT ); Tue, 5 Mar 2013 11:17:35 -0500 Received: from terminus.zytor.com ([198.137.202.10]:33888 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752440Ab3CEQRd (ORCPT ); Tue, 5 Mar 2013 11:17:33 -0500 User-Agent: K-9 Mail for Android In-Reply-To: <1362484056-9778-5-git-send-email-kyungsik.lee@lge.com> References: <1362484056-9778-1-git-send-email-kyungsik.lee@lge.com> <1362484056-9778-5-git-send-email-kyungsik.lee@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v3 -next 4/5] x86: Add support for LZ4-compressed kernel From: "H. Peter Anvin" Date: Tue, 05 Mar 2013 08:13:38 -0800 To: Kyungsik Lee , Andrew Morton , Russell King , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, x86@kernel.org, celinux-dev@lists.celinuxforum.org CC: Nicolas Pitre , David Sterba , Nitin Gupta , Joe Millenbach , Thomas Gleixner , Michal Marek , hyojun.im@lge.com, chan.jeong@lge.com, raphael.andy.lee@gmail.com Message-ID: <18eb6ca7-6993-40e9-a58d-116e1f6c37f6@email.android.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3057 Lines: 89 Please add the new magic to Documentation/x86/boot.txt as well. Kyungsik Lee 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 >--- > 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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/