[19/43] kmsan: init: call KMSAN initialization routines

Commit Message

Alexander Potapenko Dec. 14, 2021, 4:20 p.m. UTC

kmsan_initialize_shadow() creates metadata pages for mappings created
at boot time.

kmsan_initialize() initializes the bookkeeping for init_task and enables
KMSAN.

Signed-off-by: Alexander Potapenko <[e-mail]>
---
Link: https://linux-review.googlesource.com/id/I7bc53706141275914326df2345881ffe0cdd16bd
---
 init/main.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/init/main.c b/init/main.c
index bb984ed79de0e..2fc5025db0810 100644
--- a/init/main.c
+++ b/init/main.c
@@ -34,6 +34,7 @@ 
 #include <linux/percpu.h>
 #include <linux/kmod.h>
 #include <linux/kprobes.h>
+#include <linux/kmsan.h>
 #include <linux/vmalloc.h>
 #include <linux/kernel_stat.h>
 #include <linux/start_kernel.h>
@@ -834,6 +835,7 @@  static void __init mm_init(void)
 	init_mem_debugging_and_hardening();
 	kfence_alloc_pool();
 	report_meminit();
+	kmsan_init_shadow();
 	stack_depot_init();
 	mem_init();
 	mem_init_print_info();
@@ -848,6 +850,7 @@  static void __init mm_init(void)
 	init_espfix_bsp();
 	/* Should be run after espfix64 is set up. */
 	pti_init();
+	kmsan_init_runtime();
 }
 
 #ifdef CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET