Add kexec parameters to HdrS

kexec needs to pass some values to the to-be-executed kernel. Like
silo, it finds the HdrS structure and modifies it. Increment the
version to 0x0302.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>

diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index f2d30cab5b3f388fa9b446cf5b12afda92fa0a9d..822f6328ccfa912387a7327657a4b917301d5b7a 100644 (file)
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -52,18 +52,20 @@ stext:
  */
         .global root_flags, ram_flags, root_dev
         .global sparc_ramdisk_image, sparc_ramdisk_size
-       .global sparc_ramdisk_image64
+       .global sparc_ramdisk_image64, sparc_kexec
+       .global sparc_crash_base, sparc_crash_size
 
         .ascii  "HdrS"
         .word   LINUX_VERSION_CODE
 
        /* History:
         *
+        * 0x0302 : Supports kexec and crash kernel
         * 0x0300 : Supports being located at other than 0x4000
         * 0x0202 : Supports kernel params string
         * 0x0201 : Supports reboot_command
         */
-       .half   0x0301          /* HdrS version */
+       .half   0x0302          /* HdrS version */
 
 root_flags:
         .half   1
@@ -79,6 +81,12 @@ sparc_ramdisk_size:
        .xword  bootstr_info
 sparc_ramdisk_image64:
        .xword  0
+sparc_crash_base:
+       .xword  0
+sparc_crash_size:
+       .xword  0
+sparc_kexec:
+       .word   0
        .word   _end
 
        /* PROM cif handler code address is in %o4.  */