1 files changed, 9 insertions, 0 deletions

diff --git a/tools/arch/arm/include/uapi/asm/kvm.h b/tools/arch/arm/include/uapi/asm/kvm.h
index 6edd177bb1c7..2ba95d6fe852 100644
--- a/tools/arch/arm/include/uapi/asm/kvm.h
+++ b/tools/arch/arm/include/uapi/asm/kvm.h
@@ -135,6 +135,15 @@ struct kvm_arch_memory_slot {
 #define KVM_REG_ARM_CRM_SHIFT           7
 #define KVM_REG_ARM_32_CRN_MASK         0x0000000000007800
 #define KVM_REG_ARM_32_CRN_SHIFT        11
+/*
+ * For KVM currently all guest registers are nonsecure, but we reserve a bit
+ * in the encoding to distinguish secure from nonsecure for AArch32 system
+ * registers that are banked by security. This is 1 for the secure banked
+ * register, and 0 for the nonsecure banked register or if the register is
+ * not banked by security.
+ */
+#define KVM_REG_ARM_SECURE_MASK 0x0000000010000000
+#define KVM_REG_ARM_SECURE_SHIFT        28
 
 #define ARM_CP15_REG_SHIFT_MASK(x,n) \
         (((x) << KVM_REG_ARM_ ## n ## _SHIFT) & KVM_REG_ARM_ ## n ## _MASK)