[pve-devel] [PATCH docs/qemu-server/manager v17 0/10] Virtio-fs

[Filip Schauer]

Tested on a fresh proxmox-ve_8.4-ALPHA-1.iso install.

Configured a directory mapping and passed it to a Debian VM with the
default settings. Inside the VM I mounted the directory using
`mount -t virtiofs dirid /mnt/path`.

Writing some data to the directory from inside the VM with
`dd if=/dev/urandom of=/mnt/path/bench bs=1M` was decently fast:
190 MB/s

On 07/04/2025 15:49, Markus Frank wrote:
> Virtio-fs is a shared file system that enables sharing a directory
> between host and guest VMs. It takes advantage of the locality of
> virtual machines and the hypervisor to get a higher throughput than
> the 9p remote file system protocol.
>
> build-order:
> 1. cluster
> 2. guest-common
> 3. docs
> 4. qemu-server
> 5. manager
>
> I did not get virtiofsd to run with run_command without creating
> zombie processes after stutdown. So I replaced run_command with exec
> for now. Maybe someone can find out why this happens.
>
>
> v17:
> * qemu-server:
>    * d/control: 'virtiofsd' in Recommends instead of Depends
>    * added check if virtiofsd is installed
> * pve-manager:
>    * moved directory mapping in its own tab to save vertical space in the
>     "Resource Mappings" tab - discussed off-list with Dominik
>
>
> docs:
>
> Markus Frank (1):
>    add doc section for the shared filesystem virtio-fs
>
>   qm.adoc | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
>   1 file changed, 100 insertions(+), 2 deletions(-)
>
>
>
> qemu-server:
>
> Markus Frank (4):
>    d/control: add virtiofsd to recommends for qemu-server
>    fix #1027: virtio-fs support
>    migration: check_local_resources for virtiofs
>    disable snapshot (with RAM) and hibernate with virtio-fs devices
>
>   PVE/API2/Qemu.pm             |  41 ++++++-
>   PVE/QemuServer.pm            |  42 ++++++-
>   PVE/QemuServer/Makefile      |   3 +-
>   PVE/QemuServer/Memory.pm     |  25 +++--
>   PVE/QemuServer/Virtiofs.pm   | 212 +++++++++++++++++++++++++++++++++++
>   debian/control               |   5 +-
>   test/MigrationTest/Shared.pm |   7 ++
>   7 files changed, 320 insertions(+), 15 deletions(-)
>   create mode 100644 PVE/QemuServer/Virtiofs.pm
>
>
>
> manager:
>
> Markus Frank (5):
>    api: add resource map api endpoints for directories
>    ui: add edit window for dir mappings
>    ui: add resource mapping view for directories
>    ui: form: add selector for directory mappings
>    ui: add options to add virtio-fs to qemu config
>
>   PVE/API2/Cluster/Mapping.pm         |   7 +
>   PVE/API2/Cluster/Mapping/Dir.pm     | 308 ++++++++++++++++++++++++++++
>   PVE/API2/Cluster/Mapping/Makefile   |   1 +
>   www/manager6/Makefile               |   4 +
>   www/manager6/Utils.js               |   1 +
>   www/manager6/dc/Config.js           |   6 +
>   www/manager6/dc/DirMapView.js       |  38 ++++
>   www/manager6/form/DirMapSelector.js |  63 ++++++
>   www/manager6/qemu/HardwareView.js   |  19 ++
>   www/manager6/qemu/VirtiofsEdit.js   | 143 +++++++++++++
>   www/manager6/window/DirMapEdit.js   | 204 ++++++++++++++++++
>   11 files changed, 794 insertions(+)
>   create mode 100644 PVE/API2/Cluster/Mapping/Dir.pm
>   create mode 100644 www/manager6/dc/DirMapView.js
>   create mode 100644 www/manager6/form/DirMapSelector.js
>   create mode 100644 www/manager6/qemu/VirtiofsEdit.js
>   create mode 100644 www/manager6/window/DirMapEdit.js
>