Merge branch 'powerpc-next' of master.kernel.org:/pub/scm/linux/kernel/git/galak...
[sfrench/cifs-2.6.git] / arch / x86 / boot / header.S
index 4cc5b0411db58dd8201081702f4b93822a72101d..6d2df8d61c54089a553c0cdee879dde6f421130c 100644 (file)
@@ -22,6 +22,7 @@
 #include <asm/page.h>
 #include <asm/setup.h>
 #include "boot.h"
+#include "offsets.h"
 
 SETUPSECTS     = 4                     /* default nr of setup-sectors */
 BOOTSEG                = 0x07C0                /* original address of boot-sector */
@@ -119,7 +120,7 @@ _start:
        # Part 2 of the header, from the old setup.S
 
                .ascii  "HdrS"          # header signature
-               .word   0x0207          # header version number (>= 0x0105)
+               .word   0x0208          # header version number (>= 0x0105)
                                        # or else old loadlin-1.5 will fail)
                .globl realmode_swtch
 realmode_swtch:        .word   0, 0            # default_switch, SETUPSEG
@@ -195,10 +196,13 @@ cmd_line_ptr:     .long   0               # (Header version 0x0202 or later)
                                        # can be located anywhere in
                                        # low memory 0x10000 or higher.
 
-ramdisk_max:   .long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff
+ramdisk_max:   .long 0x7fffffff
                                        # (Header version 0x0203 or later)
                                        # The highest safe address for
                                        # the contents of an initrd
+                                       # The current kernel allows up to 4 GB,
+                                       # but leave it at 2 GB to avoid
+                                       # possible bootloader bugs.
 
 kernel_alignment:  .long CONFIG_PHYSICAL_ALIGN #physical addr alignment
                                                #required for protected mode
@@ -220,6 +224,9 @@ hardware_subarch:   .long 0                 # subarchitecture, added with 2.07
 
 hardware_subarch_data: .quad 0
 
+payload_offset:                .long input_data
+payload_length:                .long input_data_end-input_data
+
 # End of setup header #####################################################
 
        .section ".inittext", "ax"