[PATCH] s390: diag 0x308 reipl

Add code to support the re-IPL method using diagnose 0x308.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 85222fee4361..e13c87b446b2 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -65,6 +65,7 @@ extern char vmhalt_cmd[];
 extern char vmpoff_cmd[];
 
 extern void reipl(unsigned long devno);
+extern void reipl_diag(void);
 
 static void smp_ext_bitcall(int, ec_bit_sig);
 static void smp_ext_bitcall_others(ec_bit_sig);
@@ -283,6 +284,8 @@ static void do_machine_restart(void * __unused)
          * interrupted by an external interrupt and s390irq
          * locks are always held disabled).
          */
+        reipl_diag();
+
         if (MACHINE_IS_VM)
                 cpcmd ("IPL", NULL, 0, NULL);
         else