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Diffstat (limited to 'arch/x86/mm/kasan_init_64.c')
-rw-r--r--arch/x86/mm/kasan_init_64.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 99dfed6dfef8..9ec70d780f1f 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -277,6 +277,7 @@ void __init kasan_early_init(void)
void __init kasan_init(void)
{
int i;
+ void *shadow_cpu_entry_begin, *shadow_cpu_entry_end;
#ifdef CONFIG_KASAN_INLINE
register_die_notifier(&kasan_die_notifier);
@@ -329,8 +330,23 @@ void __init kasan_init(void)
(unsigned long)kasan_mem_to_shadow(_end),
early_pfn_to_nid(__pa(_stext)));
+ shadow_cpu_entry_begin = (void *)__fix_to_virt(FIX_CPU_ENTRY_AREA_BOTTOM);
+ shadow_cpu_entry_begin = kasan_mem_to_shadow(shadow_cpu_entry_begin);
+ shadow_cpu_entry_begin = (void *)round_down((unsigned long)shadow_cpu_entry_begin,
+ PAGE_SIZE);
+
+ shadow_cpu_entry_end = (void *)(__fix_to_virt(FIX_CPU_ENTRY_AREA_TOP) + PAGE_SIZE);
+ shadow_cpu_entry_end = kasan_mem_to_shadow(shadow_cpu_entry_end);
+ shadow_cpu_entry_end = (void *)round_up((unsigned long)shadow_cpu_entry_end,
+ PAGE_SIZE);
+
kasan_populate_zero_shadow(kasan_mem_to_shadow((void *)MODULES_END),
- (void *)KASAN_SHADOW_END);
+ shadow_cpu_entry_begin);
+
+ kasan_populate_shadow((unsigned long)shadow_cpu_entry_begin,
+ (unsigned long)shadow_cpu_entry_end, 0);
+
+ kasan_populate_zero_shadow(shadow_cpu_entry_end, (void *)KASAN_SHADOW_END);
load_cr3(init_top_pgt);
__flush_tlb_all();