[vfio-users] Some questions regarding VGA Arbitration, BIOS and UEFI Boot

Alex Williamson alex.l.williamson at gmail.com
Thu Mar 24 03:52:33 UTC 2016


I don't know anything about wayland.

Part of the problem with PCI addresses is that they can change, device IDs
cannot.  Depending on how the BIOS enumerates devices, adding or removing a
card may change the device address.  Kernel options like pci=assign-busses
can also change the address of a device.  So specifying a device address is
not as stable as it may seem.  What you want is available using initramfs
scripts[1], it's just not standardized, unfortunately.

[1] http://vfio.blogspot.com/2015/05/vfio-gpu-how-to-series-part-3-host.html
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