[libvirt-users] use of qemu-kvm --chardev pipe, id=X, path=... argument ?

Please can anyone enlighten me as to why linux qemu-kvm always creates the console on my terminal, when I am trying to direct all of its input and output to a pipe ? I have created : $ mkfifo /tmp/el6x32{.in,.out,.monitor} and use the command: $ /usr/libexec/qemu-kvm -M rhel6.4.0 -cpu n270 -smp 1 \ -hda /home/rpmbuild/OEL6/img/OEL6_32.img \ -kernel /home/rpmbuild/OEL6/boot/vmlinuz-2.6.39-400.215.14.el6uek.i686 \ -initrd /home/rpmbuild/OEL6/boot/initramfs 2.6.39-400.215.14.el6uek.i686.img \ -append 'root=/dev/sda rw selinux=0 enforcing=0 console=0' \ -m 2048 -k en-gb -nographic -vga none -vnc none -enable-kvm \ -chardev pipe,id=0,path=/tmp/el6x32 -monitor pipe:/tmp/el6x32.monitor But this ends up with the kernel's console on qemu-kvm's STDIO . I actually want the console to be redirected to take input from /tmp/el6x32.in and direct output to /tmp/el6x32.out - I thought that was what the above '-chardev pipe,id=0,path=/tmp/el6x32' should do if kernel boot params 'console=0' is also supplied ? Why isn't this happening for me ? Anyone got a guest to read console input from a pipe and direct console output to a pipe ? If so, how? Thanks in advance for any replies, Jason.