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Message-ID: <44EF8E7D.5060905@gmail.com>
Date:	Sat, 26 Aug 2006 02:57:49 +0300
From:	Alon Bar-Lev <alon.barlev@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
CC:	"H. Peter Anvin" <hpa@...or.com>, Andrew Morton <akpm@...l.org>
Subject: [PATCH] THE LINUX/I386 BOOT PROTOCOL - Breaking the 256 limit (ping)


Extending the kernel parameters to a 2048 bytes for
boot protocol >=2.02 of i386, ia64 and x86_64 architectures for
linux-2.6.18-rc4-mm2.

Current implementation allows the kernel to receive up to
255 characters from the bootloader. In current environment,
the command-line is used in order to specify many values,
including suspend/resume, module arguments, splash, initramfs
and more. 255 characters are not enough anymore.

Signed-off-by: Alon Bar-Lev <alon.barlev@...il.com>

---

diff -urNp linux-2.6.18-rc4-mm2/include/asm-i386/param.h linux-2.6.18-rc4-mm2.new/include/asm-i386/param.h
--- linux-2.6.18-rc4-mm2/include/asm-i386/param.h	2006-08-25 16:10:56.000000000 +0300
+++ linux-2.6.18-rc4-mm2.new/include/asm-i386/param.h	2006-08-26 02:30:52.000000000 +0300
@@ -18,6 +18,5 @@
  #endif

  #define MAXHOSTNAMELEN	64	/* max length of hostname */
-#define COMMAND_LINE_SIZE 256

  #endif
diff -urNp linux-2.6.18-rc4-mm2/include/asm-i386/setup.h linux-2.6.18-rc4-mm2.new/include/asm-i386/setup.h
--- linux-2.6.18-rc4-mm2/include/asm-i386/setup.h	2006-08-25 16:10:56.000000000 +0300
+++ linux-2.6.18-rc4-mm2.new/include/asm-i386/setup.h	2006-08-26 02:30:52.000000000 +0300
@@ -15,7 +15,7 @@
  #define MAX_NONPAE_PFN	(1 << 20)

  #define PARAM_SIZE 4096
-#define COMMAND_LINE_SIZE 256
+#define COMMAND_LINE_SIZE 2048

  #define OLD_CL_MAGIC_ADDR	0x90020
  #define OLD_CL_MAGIC		0xA33F
diff -urNp linux-2.6.18-rc4-mm2/include/asm-ia64/setup.h linux-2.6.18-rc4-mm2.new/include/asm-ia64/setup.h
--- linux-2.6.18-rc4-mm2/include/asm-ia64/setup.h	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.18-rc4-mm2.new/include/asm-ia64/setup.h	2006-08-26 02:30:52.000000000 +0300
@@ -1,6 +1,6 @@
  #ifndef __IA64_SETUP_H
  #define __IA64_SETUP_H

-#define COMMAND_LINE_SIZE	512
+#define COMMAND_LINE_SIZE	2048

  #endif
diff -urNp linux-2.6.18-rc4-mm2/include/asm-x86_64/setup.h linux-2.6.18-rc4-mm2.new/include/asm-x86_64/setup.h
--- linux-2.6.18-rc4-mm2/include/asm-x86_64/setup.h	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.18-rc4-mm2.new/include/asm-x86_64/setup.h	2006-08-26 02:32:44.000000000 +0300
@@ -1,6 +1,6 @@
  #ifndef _x8664_SETUP_H
  #define _x8664_SETUP_H

-#define COMMAND_LINE_SIZE	256
+#define COMMAND_LINE_SIZE	2048

  #endif
-
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