From a90e883d8b8fb07ddea4d9618ce58bf72bce7f00 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Mon, 13 Feb 2017 15:30:19 +1100 Subject: [PATCH] powerpc/mm: Blacklist SLB symbols from kprobe We can't sensibly take a trap at this point. So, blacklist these symbols. Reported-by: Anton Blanchard Signed-off-by: Naveen N. Rao Signed-off-by: Michael Ellerman --- arch/powerpc/mm/slb_low.S | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S index 9beed92c1900..a85e06ea6c20 100644 --- a/arch/powerpc/mm/slb_low.S +++ b/arch/powerpc/mm/slb_low.S @@ -272,3 +272,11 @@ slb_compare_rr_to_size: clrrdi r3,r3,SID_SHIFT_1T /* clear out non-ESID bits */ b 7b + +_ASM_NOKPROBE_SYMBOL(slb_allocate_realmode) +_ASM_NOKPROBE_SYMBOL(slb_miss_kernel_load_linear) +_ASM_NOKPROBE_SYMBOL(slb_miss_kernel_load_io) +_ASM_NOKPROBE_SYMBOL(slb_compare_rr_to_size) +#ifdef CONFIG_SPARSEMEM_VMEMMAP +_ASM_NOKPROBE_SYMBOL(slb_miss_kernel_load_vmemmap) +#endif -- 2.20.1