ZCU106_10Gbps_ethernet/Petalinux/project-spec/meta-user/recipes-bsp/device-tree/files/xen-qemu.dtsi

/ {
        cpus {
                cpu@1 {
                        //compatible = "disabled";
                        device_type = "none";
                };
                cpu@2 {
                        //compatible = "disabled";
                        device_type = "none";
                };
                cpu@3 {
                        //compatible = "disabled";
                        device_type = "none";
                };
        };
};