pub fn runnable_vcpu(
cpu_id: usize,
vcpu_id: usize,
vcpu: Option<Arc<dyn VcpuArch>>,
vcpu_init: VcpuInitArch,
vm: Arc<dyn VmArch>,
irq_chip: &dyn IrqChipArch,
vcpu_count: usize,
cpu_config: Option<CpuConfigArch>,
) -> Result<Arc<dyn VcpuArch>>