STEXI
@item -virtfs_synth
@findex -virtfs_synth
-Create synthetic file system image
+Create synthetic file system image. Note that this option is now deprecated.
+Please use @code{-fsdev synth} and @code{-device virtio-9p-...} instead.
ETEXI
DEF("iscsi", HAS_ARG, QEMU_OPTION_iscsi,