X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Fboot%2Fsetup.S;h=ca668d9df16411c29d2928d230c32b99a129104f;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=d606d06877271c2c6da1c1e7cd81435e9d7bb3fc;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git

diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S
index d606d0687..ca668d9df 100644
--- a/arch/i386/boot/setup.S
+++ b/arch/i386/boot/setup.S
@@ -33,7 +33,7 @@
  * Transcribed from Intel (as86) -> AT&T (gas) by Chris Noe, May 1999.
  * <stiker@northlink.com>
  *
- * Fix to work around buggy BIOSes which dont use carry bit correctly
+ * Fix to work around buggy BIOSes which don't use carry bit correctly
  * and/or report extended memory in CX/DX for e801h memory size detection 
  * call.  As a result the kernel got wrong figures.  The int15/e801h docs
  * from Ralf Brown interrupt list seem to indicate AX/BX should be used
@@ -82,7 +82,7 @@ start:
 # This is the setup header, and it must start at %cs:2 (old 0x9020:2)
 
 		.ascii	"HdrS"		# header signature
-		.word	0x0203		# header version number (>= 0x0105)
+		.word	0x0204		# header version number (>= 0x0105)
 					# or else old loadlin-1.5 will fail)
 realmode_swtch:	.word	0, 0		# default_switch, SETUPSEG
 start_sys_seg:	.word	SYSSEG
@@ -156,13 +156,15 @@ cmd_line_ptr:	.long 0			# (Header version 0x0202 or later)
 					# can be located anywhere in
 					# low memory 0x10000 or higher.
 
-ramdisk_max:	.long (MAXMEM-1) & 0x7fffffff
+ramdisk_max:	.long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff
 					# (Header version 0x0203 or later)
 					# The highest safe address for
 					# the contents of an initrd
 
 trampoline:	call	start_of_setup
-		.space	1024
+		.align 16
+					# The offset at this point is 0x240
+		.space	(0xeff-0x240+1) # E820 & EDD space (ending at 0xeff)
 # End of setup header #####################################################
 
 start_of_setup:
@@ -331,9 +333,9 @@ jmpe820:
 	# sizeof(e820rec).
 	#
 good820:
-	movb	(E820NR), %al			# up to 32 entries
+	movb	(E820NR), %al			# up to 128 entries
 	cmpb	$E820MAX, %al
-	jnl	bail820
+	jae	bail820
 
 	incb	(E820NR)
 	movw	%di, %ax
@@ -355,7 +357,7 @@ bail820:
 
 meme801:
 	stc					# fix to work around buggy
-	xorw	%cx,%cx				# BIOSes which dont clear/set
+	xorw	%cx,%cx				# BIOSes which don't clear/set
 	xorw	%dx,%dx				# carry on pass/error of
 						# e801h memory size call
 						# or merely pass cx,dx though
@@ -845,7 +847,7 @@ flush_instr:
 #
 #	but we yet haven't reloaded the CS register, so the default size 
 #	of the target offset still is 16 bit.
-#       However, using an operand prefix (0x66), the CPU will properly
+#	However, using an operand prefix (0x66), the CPU will properly
 #	take our 48 bit far pointer. (INTeL 80386 Programmer's Reference
 #	Manual, Mixing 16-bit and 32-bit code, page 16-6)