+ } else if (r == -ENOENT) {
+ _cleanup_closedir_ DIR *dir = NULL;
+ struct dirent *dent;
+
+ dir = opendir("/proc/device-tree");
+ if (!dir) {
+ if (errno == ENOENT)
+ return 0;
+ return -errno;
+ }
+
+ FOREACH_DIRENT(dent, dir, return -errno) {
+ if (strstr(dent->d_name, "fw-cfg")) {
+ *_id = "qemu";
+ return 1;
+ }
+ }