make KVM share directory with host using 9p

1. use virt-manager to specify which directory you want to share with guest

double click on the guest -> show virtual hardware details -> filesystems:

fill the source path and target path boxes, eg.

source path = /home/user/linux
target path = /mnt/linux

Then click apply to finish.

2. log into the guest and execute the following cmds:

mount -t 9p -o trans=virtio /mnt/linux/ /mnt/linux/

Note:

• target path is transparent for end users, that is said, it acts like a block device exported from source path
• fstab entry

/mnt/linux /mnt/linux 9p trans=virtio 0 0