Using yesterday's -git, following the instructions in http://wiki.qemu.org/Documentation/9psetup (which is missing a kernel symbol, you need to add CONFIG_VIRTIO_PCI to your kernel too), I managed to mount a read-only virtfs filesystem, adding this to the qemu-system-x86_64 command line:
-virtfs local,security_model=passthrough,mount_tag=kvm,path=/home/landley/9ptest And then in the emulated Linux: root@kvm:~# mount -t 9p -o trans=virtio,version=9p2000.L kvm woot root@kvm:~# ls -l woot total 80 -rw-r--r-- 1 1000 1000 77874 Jan 22 23:33 config-linux root@kvm:~# cd woot root@kvm:~/woot# touch fred touch: setting times of `fred': No such file or directory root@kvm:~/woot# I.E. It seems to work fine read only, but changes are discarded. Am I doing something wrong, or is this expected? (If so, when is write support likely to go in?) Rob
