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-rw-r--r--arch/arm64/include/asm/mmu.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index a050d4f3615d..3baf010fe883 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -21,6 +21,8 @@
#define USER_ASID_FLAG (UL(1) << USER_ASID_BIT)
#define TTBR_ASID_MASK (UL(0xffff) << 48)
+#define BP_HARDEN_EL2_SLOTS 4
+
#ifndef __ASSEMBLY__
typedef struct {
@@ -51,6 +53,7 @@ struct bp_hardening_data {
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
extern char __bp_harden_hyp_vecs_start[], __bp_harden_hyp_vecs_end[];
+extern atomic_t arm64_el2_vector_last_slot;
DECLARE_PER_CPU_READ_MOSTLY(struct bp_hardening_data, bp_hardening_data);