[Bug 31786] Run the tests on real hardware

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=31786

--- Comment #2 from François Gouget <fgouget at codeweavers.com> ---
The right approach is probably PCI-passthrough.
I sent some information on this to the mailing list:
https://www.winehq.org/pipermail/wine-devel/2019-April/144315.html

To summarize the requirements:
* We need VM hosts that support Intel VT-d or AMD's equivalent on both the
motherboard and the CPU. Some motherboards are better at this than others due
to how they group the PCI devices.

* We need GPUs that are hot-restartable, which is easier to get on the AMD side
than on the Nvidia one.
  https://passthroughpo.st/apply-error-43-workaround/

* I'll skip the host and QEmu configuration requirements (see my email above or
resources below).

* The TestBot will need guest code to take screenshots (see also bug 44709).

* The administrator setting up the VM will need to go through a KVM (already
available), or through a remove desktop solution once the base OS is installed.

* The TestBot will not be able to use live snapshots but I think all the
required support is there already.


Useful resources:
* LevelOnTech
 
https://forum.level1techs.com/t/the-vfio-and-gpu-passthrough-beginners-resource/129897

* GrayWolfTech - PCI passthrough quick guide
 
https://forum.level1techs.com/t/play-games-in-windows-on-linux-pci-passthrough-quick-guide/108981

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