hw/intc/loongarch_extioi: Get cpu number from possible_cpu_arch_ids

Supported CPU number can be acquired from function
possible_cpu_arch_ids(), cpu-num property is not necessary.

Signed-off-by: Bibo Mao <[email protected]>
Reviewed-by: Bibo Mao <[email protected]>

Author: bibo-mao

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);

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)

include/hw/intc/loongarch_extioi_common.h

@@ -65,6 +65,8 @@ typedef struct ExtIOICore {
     uint32_t coreisr[EXTIOI_IRQS_GROUP_COUNT];
     DECLARE_BITMAP(sw_isr[LS3A_INTC_IP], EXTIOI_IRQS);
     qemu_irq parent_irq[LS3A_INTC_IP];
+    uint64_t arch_id;
+    CPUState *cpu;
 } ExtIOICore;
 
 struct LoongArchExtIOICommonState {