1 files changed, 18 insertions, 0 deletions
diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index a918e5b27a..34c5e7f9fb 100644
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -273,6 +273,24 @@ void HELPER(set_user_reg)(CPUARMState *env, uint32_t regno, uint32_t val)
     }
 }
 
+void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip)
+{
+    const ARMCPRegInfo *ri = rip;
+    switch (ri->accessfn(env, ri)) {
+    case CP_ACCESS_OK:
+        return;
+    case CP_ACCESS_TRAP:
+    case CP_ACCESS_TRAP_UNCATEGORIZED:
+        /* These cases will eventually need to generate different
+         * syndrome information.
+         */
+        break;
+    default:
+        g_assert_not_reached();
+    }
+    raise_exception(env, EXCP_UDEF);
+}
+
 void HELPER(set_cp_reg)(CPUARMState *env, void *rip, uint32_t value)
 {
     const ARMCPRegInfo *ri = rip;