diff mbox series

[v4,5/6] powerpc/fsl_booke/64: clear the original kernel if randomized

Message ID 20200306064033.3398-6-yanaijie@huawei.com (mailing list archive)
State New, archived
Headers show
Series implement KASLR for powerpc/fsl_booke/64 | expand

Commit Message

Jason Yan March 6, 2020, 6:40 a.m. UTC 
The original kernel still exists in the memory, clear it now.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Cc: Scott Wood <oss@buserror.net>
Cc: Diana Craciun <diana.craciun@nxp.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
---
 arch/powerpc/mm/nohash/kaslr_booke.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c
index bf60f956dc91..f7ab97aa2127 100644
--- a/arch/powerpc/mm/nohash/kaslr_booke.c
+++ b/arch/powerpc/mm/nohash/kaslr_booke.c
@@ -379,8 +379,10 @@  notrace void __init kaslr_early_init(void *dt_ptr, phys_addr_t size)
 	unsigned long kernel_sz;
 
 	if (IS_ENABLED(CONFIG_PPC64)) {
-		if (__run_at_load == 1)
+		if (__run_at_load == 1) {
+			kaslr_late_init();
 			return;
+		}
 
 		/* Setup flat device-tree pointer */
 		initial_boot_params = dt_ptr;