lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html
lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html
lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html
lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html
www.mail-archive.com/qemu-devel%40nongnu.org/msg667396.html