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-rw-r--r--hw/intc/loongarch_extioi.c6
-rw-r--r--hw/intc/loongarch_extioi_common.c17
2 files changed, 15 insertions, 8 deletions
diff --git a/hw/intc/loongarch_extioi.c b/hw/intc/loongarch_extioi.c
index 4a1a7c357c..d18f47def7 100644
--- a/hw/intc/loongarch_extioi.c
+++ b/hw/intc/loongarch_extioi.c
@@ -347,12 +347,6 @@ static void loongarch_extioi_realize(DeviceState *dev, Error **errp)
         s->status |= BIT(EXTIOI_ENABLE);
     }
 
-    s->cpu = g_new0(ExtIOICore, s->num_cpu);
-    if (s->cpu == NULL) {
-        error_setg(errp, "Memory allocation for ExtIOICore faile");
-        return;
-    }
-
     for (i = 0; i < s->num_cpu; i++) {
         for (pin = 0; pin < LS3A_INTC_IP; pin++) {
             qdev_init_gpio_out(dev, &s->cpu[i].parent_irq[pin], 1);
diff --git a/hw/intc/loongarch_extioi_common.c b/hw/intc/loongarch_extioi_common.c
index e4c1cc3c98..99a091e30b 100644
--- a/hw/intc/loongarch_extioi_common.c
+++ b/hw/intc/loongarch_extioi_common.c
@@ -13,11 +13,24 @@
 static void loongarch_extioi_common_realize(DeviceState *dev, Error **errp)
 {
     LoongArchExtIOICommonState *s = (LoongArchExtIOICommonState *)dev;
+    MachineState *machine = MACHINE(qdev_get_machine());
+    MachineClass *mc = MACHINE_GET_CLASS(machine);
+    const CPUArchIdList *id_list;
+    int i;
 
-    if (s->num_cpu == 0) {
-        error_setg(errp, "num-cpu must be at least 1");
+    assert(mc->possible_cpu_arch_ids);
+    id_list = mc->possible_cpu_arch_ids(machine);
+    s->num_cpu = id_list->len;
+    s->cpu = g_new0(ExtIOICore, s->num_cpu);
+    if (s->cpu == NULL) {
+        error_setg(errp, "Memory allocation for ExtIOICore faile");
         return;
     }
+
+    for (i = 0; i < s->num_cpu; i++) {
+        s->cpu[i].arch_id = id_list->cpus[i].arch_id;
+        s->cpu[i].cpu = CPU(id_list->cpus[i].cpu);
+    }
 }
 
 static int loongarch_extioi_common_pre_save(void *opaque)