update boot spec to 2.07

Updates for version 2.07 of the boot protocol.  This includes:

load_flags.KEEP_SEGMENTS- flag to request/inhibit segment reloads
hardware_subarch	- what subarchitecture we're booting under
hardware_subarch_data	- per-architecture data

The intention of these changes is to make booting a paravirtualized
kernel work via the normal Linux boot protocol.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 2 deletions

diff --git a/include/asm-x86/bootparam.h b/include/asm-x86/bootparam.h
index ef67b59dbdb9..dc031cf44633 100644
--- a/include/asm-x86/bootparam.h
+++ b/include/asm-x86/bootparam.h
@@ -28,8 +28,9 @@ struct setup_header {
         u16     kernel_version;
         u8      type_of_loader;
         u8      loadflags;
-#define LOADED_HIGH     0x01
-#define CAN_USE_HEAP    0x80
+#define LOADED_HIGH     (1<<0)
+#define KEEP_SEGMENTS   (1<<6)
+#define CAN_USE_HEAP    (1<<7)
         u16     setup_move_size;
         u32     code32_start;
         u32     ramdisk_image;
@@ -41,6 +42,10 @@ struct setup_header {
         u32     initrd_addr_max;
         u32     kernel_alignment;
         u8      relocatable_kernel;
+        u8      _pad2[3];
+        u32     cmdline_size;
+        u32     hardware_subarch;
+        u64     hardware_subarch_data;
 } __attribute__((packed));
 
 struct sys_desc_table {