KVM virtiofs / shared folder host + guest / общая папка

Ссылки:

https://github.com/virtio-win/kvm-guest-drivers-windows/wiki/Virtiofs:-Shared-file-system
https://github.com/winfsp/winfsp/releases/download/v2.0/winfsp-2.0.23075.msi
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
https://github.com/winfsp/winfsp/releases
https://github.com/virtio-win/virtio-win-pkg-scripts/blob/master/README.md
https://libvirt.org/kbase/virtiofs.html
https://virtio-fs.gitlab.io/

https://github.com/virtio-win/kvm-guest-drivers-windows/wiki/Virtiofs:-Shared-file-system

https://github.com/winfsp/winfsp/releases/download/v2.0/winfsp-2.0.23075.msi

https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso

https://github.com/winfsp/winfsp/releases

https://github.com/virtio-win/virtio-win-pkg-scripts/blob/master/README.md

https://libvirt.org/kbase/virtiofs.html

https://virtio-fs.gitlab.io/

guest linux

0. Добавляем на гостя железку
<domain>
  ...
  <memoryBacking>
    <source type='memfd'/>
    <access mode='shared'/>
  </memoryBacking>
  ...
  <devices>
    ...
    <filesystem type='mount' accessmode='passthrough'>
      <driver type='virtiofs' queue='1024'/>
      <source dir='/path'/>
      <target dir='mount_tag'/>
    </filesystem>
    ...
  </devices>
</domain>


1. В госте монтируем каталог
mount -t virtiofs mount_tag /mnt/mount/path

0. Добавляем на гостя железку

...

</memoryBacking>

...

...

</filesystem>

...

</devices>

</domain>

1. В госте монтируем каталог

mount -t virtiofs mount_tag /mnt/mount/path

guest windows

0. Устанавливаем драйверы, агента, службу WinFsp
https://github.com/winfsp/winfsp/releases/download/v2.0/winfsp-2.0.23075.msi
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
1. Если "общая папка" сама не появилась то можно выполнить вручную 
cmd
cd "C:\Program Files (x86)\WinFsp\bin\"
launchctl-x64.exe" start virtiofs viofsY mount_tag0 Y
где:
mount_tag0 - ваш так который вы указали в настройках гостя
Y - желаемая буква (тоже надо viofsY)

0. Устанавливаем драйверы, агента, службу WinFsp

https://github.com/winfsp/winfsp/releases/download/v2.0/winfsp-2.0.23075.msi

https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso

1. Если "общая папка" сама не появилась то можно выполнить вручную

cmd

cd "C:\Program Files (x86)\WinFsp\bin\"

launchctl-x64.exe" start virtiofs viofsY mount_tag0 Y

где:

mount_tag0 - ваш так который вы указали в настройках гостя

Y - желаемая буква (тоже надо viofsY)