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[Docs] add important notes to GPU passthrough section

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Maxim Petrunin 2016-10-18 20:24:19 +03:00
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@ -292,7 +292,7 @@ end
* `keymap` - Set keymap for vm. default: en-us * `keymap` - Set keymap for vm. default: en-us
* `kvm_hidden` - [Hide the hypervisor from the * `kvm_hidden` - [Hide the hypervisor from the
guest](https://libvirt.org/formatdomain.html#elementsFeatures). Useful for guest](https://libvirt.org/formatdomain.html#elementsFeatures). Useful for
GPU passthrough on stubborn drivers. Default is false. [GPU passthrough](#pci-device-passthrough) on stubborn drivers. Default is false.
* `video_type` - Sets the graphics card type exposed to the guest. Defaults to * `video_type` - Sets the graphics card type exposed to the guest. Defaults to
"cirrus". [Possible "cirrus". [Possible
values](http://libvirt.org/formatdomain.html#elementsVideo) are "vga", values](http://libvirt.org/formatdomain.html#elementsVideo) are "vga",
@ -730,6 +730,10 @@ Vagrant.configure("2") do |config|
end end
``` ```
Note! Above options affect configuration only at domain creation. It won't change VM behaviour on `vagrant reload` after domain was created.
Don't forget to [set](#domain-specific-options) `kvm_hidden` option to `true` especially if you are passthroughing NVIDIA GPUs. Otherwise GPU is visible from VM but cannot be operated.
## Random number generator passthrough ## Random number generator passthrough
You can pass through `/dev/random` to your VM by configuring the domain like this: You can pass through `/dev/random` to your VM by configuring the domain like this: