2002-07-12 Yoshinori K. Okuji <okuji@enbug.org>

* stage2/boot.c (load_image): Rewrite the Linux booting support
	radically. Now it should work even on a machine having, say,
	only 128KB, theoretically. Of course, GRUB itself doesn't work
	on such a system, though.
	(load_initrd): Initialize LH based on CUR_ADDR, because the
	location becomes dynamic.
	* stage2/shared.h (LINUX_MAX_SETUP_SECTS): Set to 64.
	(LINUX_HEAP_END_OFFSET): Set to (0x9000 - 0x200).
	(LINUX_STAGING_AREA): Removed.
	(LINUX_SETUP): Likewise.
	(LINUX_KERNEL): Likewise.
	(LINUX_KERNEL_MAXLEN): Likewise.
	(LINUX_SETUP_SEG): Likewise.
	(LINUX_INIT_SEG): Likewise.
	(LINUX_SETUP_STACK): Set to 0x9000.
	(LINUX_BZIMAGE_ADDR): New macro.
	(LINUX_ZIMAGE_ADDR): Likewise.
	(LINUX_OLD_REAL_MODE_ADDR): Likewise.
	(CL_MY_LOCATION): Removed.
	(CL_MY_END_ADDR): Likewise.
	(CL_BASE_ADDR): Likewise.
	(CL_MAGIC): Renamed to ...
	(LINUX_CL_MAGIC): ... this.
	(LINUX_CL_OFFSET): New macro.
	(LINUX_CL_END_OFFSET): Likewise.
	(LINUX_SETUP_MOVE_SIZE): Likewise.
	(struct linux_kernel_header): Change the type of the member
	"cmd_line_ptr" to char *.
	(linux_data_tmp_addr): Declared.
	(linux_data_real_addr): Likewise.
	* stage2/asm.S [!STAGE1_5] (linux_data_tmp_addr): New variable.
	[!STAGE1_5] (linux_data_real_addr): Likewise.
	[!STAGE1_5] (big_linux_boot): Copy the real mode part from
	LINUX_DATA_TMP_ADDR to LINUX_DATA_REAL_ADDR.
	* grub/asmstub.c (linux_data_tmp_addr): New variable.
	(linux_data_real_addr): Likewise.

NEWS

@@ -20,6 +20,8 @@ New in 0.93:
   intelligent terminal (such as the comint mode in GNU Emacs).
 * The utility ``grub-md5-crypt'' prompts to retype a password and checks
   if the passwords match.
+* Support for booting Linux is rewritten, so GRUB now supports
+  large-EBDA systems.
 
 New in 0.92 - 2002-04-30:
 * The command "displaymem" uses only hex digits for consistency.