Windoiws 10 VFIO configuration

This Repo

Scripts

• win11.sh is the entry point. It starts the display client and possibly runs start.sh/stop.sh depending on VM state and other running instances of the script.
• start.sh runs once before the VM starts
• stop.sh runs once after the VM stops
• display.sh runs every time win11.sh is executed, waiting for start.sh and VM startup to complete if relavent.

Other

• win11.desktop/win10.svg
• win11.xml libvirt configuration

Kernel flags

• vfio-pci.ids=10de:2208,10de:1aef
• signore_msrs=N report_ignored_msrs=Y

Passthrough

• IOMMU Group 26
  • 0c:00.0 Nvidia VGA [10de:2208] (nvidia, vfio-pci)
  • 0c:00.1 Nvidia HDA [10de:1aef] (snd_hda_intel, vfio-pci)

Notes

Guest display output

Windows isn't the kind of OS that would let you create a virtual display. As such, the guest is plugged into an unused HDMI 2.0 port on the monitor that does not support the monitor's own refresh rate, and CRU is used to spoof the monitor's EDID, generating a framebuffer of the desired resolution and refresh rate. Looking Glass does the rest.