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-rw-r--r--arch/powerpc/mm/slb.c6
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)
124 ksp_vsid_data = get_slb_shadow()->save_area[2].vsid; 124 ksp_vsid_data = get_slb_shadow()->save_area[2].vsid;
125 } 125 }
126 126
127 /*
128 * We can't take a PMU exception in the following code, so hard
129 * disable interrupts.
130 */
131 hard_irq_disable();
132
127 /* We need to do this all in asm, so we're sure we don't touch 133 /* We need to do this all in asm, so we're sure we don't touch
128 * the stack between the slbia and rebolting it. */ 134 * the stack between the slbia and rebolting it. */
129 asm volatile("isync\n" 135 asm volatile("isync\n"