For QEMU/KVM, how to share data between host and guest
Posted on In QAGeneral question for developers to access data between VM and VMM.
As I know, paravirtualization solution is a good way to share data for VM and VMM since it has better performance.
Please use Virtio 9p solution for QEMU/KVM. Note that you need to load 9p related modules for guest kernel.
Add following in your virsh start xml file.
<filesystem type='mount' accessmode='passthrough'>
<source dir='host_dir_path'/>
<target dir='testlabel'/>
</filesystem>
After start guest OS, run following command
# mount testlabel /mnt/ -t 9p -o trans=virtio
References
[1] http://wiki.qemu.org/Documentation/9psetup
[2] https://www.linux-kvm.org/page/9p_virtio
[3] http://rabexc.org/posts/p9-setup-in-libvirt
[4] https://dustymabe.com/2012/09/11/share-a-folder-between-kvm-host-and-guest/
