1 files changed, 6 insertions, 0 deletions

diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 47b06bad24ad..906daeda59a8 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -124,6 +124,12 @@ void slb_flush_and_rebolt(void)
                 ksp_vsid_data = get_slb_shadow()->save_area[2].vsid;
         }
 
+        /*
+         * We can't take a PMU exception in the following code, so hard
+         * disable interrupts.
+         */
+        hard_irq_disable();
+
         /* We need to do this all in asm, so we're sure we don't touch
          * the stack between the slbia and rebolting it. */
         asm volatile("isync\n"