[PATCH v3 5/6] powerpc/fsl_booke/64: clear the original kernel if randomized

[Jason Yan]

The original kernel still exists in the memory, clear it now.

Signed-off-by: Jason Yan <yanai...@huawei.com>
Cc: Scott Wood <o...@buserror.net>
Cc: Diana Craciun <diana.crac...@nxp.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Christophe Leroy <christophe.le...@c-s.fr>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Nicholas Piggin <npig...@gmail.com>
Cc: Kees Cook <keesc...@chromium.org>
---
 arch/powerpc/mm/nohash/kaslr_booke.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c 
b/arch/powerpc/mm/nohash/kaslr_booke.c
index c6f5c1db1394..ed1277059368 100644
--- a/arch/powerpc/mm/nohash/kaslr_booke.c
+++ b/arch/powerpc/mm/nohash/kaslr_booke.c
@@ -378,8 +378,10 @@ notrace void __init kaslr_early_init(void *dt_ptr, 
phys_addr_t size)
        unsigned int *__kaslr_offset = (unsigned int *)(KERNELBASE + 0x58);
        unsigned int *__run_at_load = (unsigned int *)(KERNELBASE + 0x5c);
 
-       if (*__run_at_load == 1)
+       if (*__run_at_load == 1) {
+               kaslr_late_init();
                return;
+       }
 
        /* Setup flat device-tree pointer */
        initial_boot_params = dt_ptr;
-- 
2.17.2