guest/trusty/common/Android.bp

prebuilt_etc {
    name: "early_vms.xml",
    filename: "early_vms.xml",
    relative_install_path: "avf",
    system_ext_specific: true,
    enabled: select(soong_config_variable("trusty_system_vm", "enabled"), {
        true: true,
        default: false,
    }),
    src: select(soong_config_variable("trusty_system_vm", "enabled"), {
        true: "early_vms.xml",
        default: ":empty_file",
    }),
}