[PATCH] THE LINUX/I386 BOOT PROTOCOL - Breaking the 256 limit (ping)

[Alon Bar-Lev]

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@xxxxxxxxx>

---

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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