We need to do that to guarantee they see any code change done by
dynamic patching during boot.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
arch/powerpc/kernel/head_64.S | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 370afd4..2505f78 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -147,6 +147,8 @@ __secondary_hold:
mtctr r4
mr r3,r24
li r4,0
+ /* Make sure that patched code is visible */
+ isync
bctr
#else
BUG_OPCODE
--
1.7.1
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