[POWERPC] Provide a way to protect 4k subpages when using 64k pages

[linux-2.6] / arch / powerpc / kernel / head_64.S

diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index c34986835a4e6f80593ed4588b0bf681f5628c9c..11b4f6d9ffcecfb3fde2d60cd4c05dcee66ad832 100644 (file)
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -903,6 +903,7 @@ handle_page_fault:
  * the PTE insertion
  */
 12:    bl      .save_nvgprs
+       mr      r5,r3
        addi    r3,r1,STACK_FRAME_OVERHEAD
        ld      r4,_DAR(r1)
        bl      .low_hash_fault