
Nvidia itself provides API to capture things in GPU memory, this is why we can have technology like Steam in-home streaming and Geforce experience. My dGPU appears to have a Subsystem ID 00000000 inside the VM by default.Ībout one display setup, although frames are rendered in GPU memory, display ports is not the only way to get those frames. The keypoint, however, is to assign Subsystem ID for the dGPU using some vfio-pci options. Some TLDR about the idea behindĪs you might read after, this tutorial is pretty much the same as most passthrough guide. *This is my laptop running in Optimus mode with a panel (I swapped the original myself) and a MXM form factor Quadro P5000(QS).
Both game use high preset with V-Sync enabled. Steam in-home streaming between Windows VM and host: Can connect external display directly to your VM (only some machine with specific setup). No need for external display (depend on your hardware and the version of Windows your VM running),. No need to reboot during this dGPU binding/unbinding process,. Can use your dGPU with bumblebee again without any problem,. Can have your dGPU back when the VM shutdown,. Can pass your Nvidia dGPU to your VM when you don't need it in your host machine,. Can power on/off and utilize your Nvidia dGPU on demand with bumblebee,. Physically running a Linux distribution as the host machine,. Update: Outdated link to VirtIO windows-guest drivers, thanks to who also attach a link of how to embed an ACPI table for VBIOS What to expect?ĭepends on your hardware, you can have a laptop that: Update: Use qemu 2.11.2 with pulse audio patch and vcpupin, add some caveats for 18.04 Update: Forget that -vga none would cause Guest has not initialized the display (yet) problem if you don't have a system installed Update: Use hexadecimal id directly instead of convert it to decimal, add some note for romfile option Sorry but currently I don't know how to check if your dGPU load its firmware through acpi call. For laptops that use acpi call to load dGPU firmware, please refer to to u/jscinoz 's optimus-vfio-docs. This guide only apply to laptops that does not load dGPU firmware through acpi call, which include all MUXed laptop and some MUXless laptop. This is a guide for passing through you dGPU on your laptop for your VM. What about GVT-g? Can I replicate a Optimus system inside a VM?.