target/rx: Populate CPUClass.mmu_index

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx/cpu.c

@@ -64,6 +64,11 @@ static bool rx_cpu_has_work(CPUState *cs)
         (CPU_INTERRUPT_HARD | CPU_INTERRUPT_FIR);
 }
 
+static int riscv_cpu_mmu_index(CPUState *cs, bool ifunc)
+{
+    return 0;
+}
+
 static void rx_cpu_reset_hold(Object *obj)
 {
     RXCPU *cpu = RX_CPU(obj);
@@ -204,6 +209,7 @@ static void rx_cpu_class_init(ObjectClass *klass, void *data)
 
     cc->class_by_name = rx_cpu_class_by_name;
     cc->has_work = rx_cpu_has_work;
+    cc->mmu_index = riscv_cpu_mmu_index;
     cc->dump_state = rx_cpu_dump_state;
     cc->set_pc = rx_cpu_set_pc;
     cc->get_pc = rx_cpu_get_pc;