diff mbox series

[RFC,8/8] powerpc/64: barrier_nospec: Add commandline trigger

Message ID 8639fc8cb02548d478b041c3a00ad9053fdd8bc4.1520965380.git.msuchanek@suse.de (mailing list archive)
State Superseded
Headers show
Series powerpc barrier_nospec | expand

Commit Message

Michal Suchánek March 13, 2018, 6:33 p.m. UTC
Copypasta from rfi implementation

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
 arch/powerpc/kernel/setup_64.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 4b67b7b877d9..257f0e6be107 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -840,6 +840,14 @@  static int __init handle_no_pti(char *p)
 }
 early_param("nopti", handle_no_pti);
 
+static int __init handle_no_nospec(char *p)
+{
+	pr_info("barrier_nospec: disabled on command line.");
+	no_nospec = true;
+	return 0;
+}
+early_param("no_nospec", handle_no_nospec);
+
 static void do_nothing(void *unused)
 {
 	/*