target/hppa: Populate an interval tree with valid tlb entries

Complete the data structure conversion started earlier.  This reduces
the perf overhead of hppa_get_physical_address from ~5% to ~0.25%.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa/cpu.c

@@ -137,8 +137,10 @@ static void hppa_cpu_realizefn(DeviceState *dev, Error **errp)
 #ifndef CONFIG_USER_ONLY
     {
         HPPACPU *cpu = HPPA_CPU(cs);
+
         cpu->alarm_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
                                         hppa_cpu_alarm_timer, cpu);
+        hppa_ptlbe(&cpu->env);
     }
 #endif
 }