access host's `rclone mount`'ed directory

[Inilien]

Is your feature request related to a problem? Please describe.

• On linux host I mounted a cloud (Google Drive) filesystem using rclone following these instructions to configure Google Drive remote.
• On the host, I am able to use this mounted file system as any other file system (CRUD operations work).
• When I try to share mounted directory with windows VM, using virtiofs, I get an error:

  virtiofs export directory <path to rclone mounted folder> does not exist

• If I share a parent directory, then VM will start. But the mounted folder of Google Drive is not visible inside the VM.

Describe the solution you'd like I would like to see a cloud's directory structure mounted on host inside VM as any other host's directory when I share it using virtiofs.

Describe alternatives you've considered

• using rclone mount directly in VM - it probably will work, but I do not want to store cloud access information inside VM because of security concerns.

Additional context I use this configuration to create virtiofs shared folder inside VM (which works on other paths but not with rclone mounts)

<filesystem type="mount" accessmode="passthrough">
  <driver type="virtiofs" queue="1024"/>
  <binary path="/usr/lib/virtiofsd" xattr="on">
    <cache mode="always"/>
    <thread_pool size="64"/>
  </binary>
  <source dir="/path/to/folder/on/host"/>
  <target dir="HostSharedFolder"/>
  <address type="pci" domain="0x0000" bus="0x08" slot="0x00" function="0x0"/>
</filesystem>

[Inilien]

Turned out, root user was not able to see the contents of the mounted directory.
After I did this: rclone mount <src> <dst> --allow-other the files from cloud's storage were visible and accessible from the VM.
Relevant link