On Thu, Aug 30, 2018 at 5:40 PM, Peter Wu [off-list ref] wrote:

As the BIOS date is not visible, can you also confirm that this message
is visible in dmesg?

   nouveau: detected PR support, will not use DSM

Yes, that gets logged.

For laptops, it appears that you have to do at least two things:
- Ensure that the Subsystem Vendor/Product ID are set.
- Expose a _ROM ACPI method that provides VBIOS.

Perhaps you also need to provide a "_DSM" method that emulates at least
the "Optimus" interface for GUID a486d8f8-0bda-471b-a72b-6042a6b5bee0.

You probably lost interest here, but if you want to continue anyway this
is what allowed me to install the driver on the XPS 9560:
https://github.com/Lekensteyn/acpi-stuff/blob/master/d3test/fakedev.asl

Indeed. I'm going to submit the workaround and I'll look to come back
to this qemu/vfio analysis later.

Thanks
Daniel
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