[PATCH] ppc64: fix for kexec boot issue

The kexec boot is not successful on some power machines since all CPUs are
getting removed from global interrupt queue (GIQ) before kexec boot.  Some
systems always expect at least one CPU in GIQ.  Hence, this patch will make
sure that only secondary CPUs are removed from GIQ.

Signed-off-by: Haren Myneni <hbabu@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/ppc64/kernel/machine_kexec.c b/arch/ppc64/kernel/machine_kexec.c
index 5c40bb6788df..4775f12a013c 100644
--- a/arch/ppc64/kernel/machine_kexec.c
+++ b/arch/ppc64/kernel/machine_kexec.c
@@ -185,7 +185,7 @@ void kexec_copy_flush(struct kimage *image)
 void kexec_smp_down(void *arg)
 {
         if (ppc_md.cpu_irq_down)
-                ppc_md.cpu_irq_down();
+                ppc_md.cpu_irq_down(1);
 
         local_irq_disable();
         kexec_smp_wait();
@@ -232,7 +232,7 @@ static void kexec_prepare_cpus(void)
 
         /* after we tell the others to go down */
         if (ppc_md.cpu_irq_down)
-                ppc_md.cpu_irq_down();
+                ppc_md.cpu_irq_down(0);
 
         put_cpu();
 
@@ -255,7 +255,7 @@ static void kexec_prepare_cpus(void)
          */
         smp_release_cpus();
         if (ppc_md.cpu_irq_down)
-                ppc_md.cpu_irq_down();
+                ppc_md.cpu_irq_down(0);
         local_irq_disable();
 }