In one command it kills X, frees the GPU from drivers and console, detaches the GPU from the host, starts the VM with the GPU, waits until the VM is off, reattaches the GPU to the host and starts lightdm.
* One GPU that supports UEFI and its BIOS. All GPUs from 2012 and later should support this, some may have issues. If the GPU does not support UEFI you may be able to make it work, but you won't see anything in the screen until the drivers inside Windows kick in.
[Create a pull merge](https://gitlab.com/YuriAlek/vfio/merge_requests/new) with [a file explaining how you got it working](Hardware configurations/README.md).
I experienced some weird things when doing this on the display, like a corruption of the image, it may be my GPU. If you encounter anything, a reboot solved my problems.
2. Edit `scripts/extract-vbios-linux.sh` to your convenience. Change `videobusid=`. [Optional] Change also the location where the vBIOS will be save `VBIOS=`.
3. Make the script executable with `chmod +x scripts/extract-vbios-linux.sh`.
4. Link the service to systemd: `ln -s scripts/qemu@.service /usr/lib/systemd/system/`.
5. Execute the systemd unit with `sudo systemctl start qemu@extract-vbios-linux.service`. You can also do it over `ssh`. The screen will turn dark for a while. The extracted ROM will be in the root directory `/root/vBIOS.rom`
2. Unzip it as `/root/nvflash_linux` with `# unzip nvflash_5.414.0_linux.zip -d /root/`.
3. Execute `scripts/iommu.sh` to get the BUS ID for the GPU. Looks like `0000:06:00.0`.
4. Edit `scripts/extract-vbios-nvflash.sh`. Change the variables `videobusid` with your GPU BUS ID; `NVFLASH` if you changed the location of the executable; and `VBIOS` if you want the ROM in other path.
5. Link the service to systemd: `ln -s scripts/qemu@.service /usr/lib/systemd/system/`.
6. Execute the systemd unit with `sudo systemctl start qemu@extract-vbios-nvflash.service`. You can also do it over `ssh`. The screen will turn dark for a while. The extracted ROM will be in the root directory `/root/vBIOS.rom`
[Source](https://www.youtube.com/watch?v=1IP-h9IKof0). [You can download the bios from techpowerup.com](https://www.techpowerup.com/vgabios/); if you do so, [skip to edit the vBIOS](#edit-the-vbios).
1. [Download and install GPU-Z](https://www.techpowerup.com/gpuz/).
2. [Open GPU-Z and backup the GPU BIOS](/Screenshots/GPU-Z vBIOS.png). Right next to the `Bios Version`; in my case `80.04.C3.00.0F`, there is an icon for backup. A file named `GK104.rom` will be created [Your file name may vary].
2. [After a bunch of `00`, there is a `55` or `U` in HEX, delete everything before the `55`](/Screenshots/Hex vBIOS.png), and save. I strongly recommend not to overwrite the original ROM.
[Note that series of `FF` values have been reported on a GTX 1060](/Screenshots/Hex vBIOS 1060.png).
5. [Optional] Create the image for the VM. Only if not using a physical hard drive. You can edit the path, the size and the format. Check `man qemu-img` for more information.
6. Edit the config in `scripts/config.sh` to convenience. If you use systemd to start the VM you have to edit `EnvironmentFile` in `qemu@.service` to point to your config file. Variables you may have to edit:
12. Let Windows find the drivers for the GPU (if Windows has network) or [download the updated ones from NVIDIA](https://www.nvidia.com/Download/index.aspx?lang=en-us).
Windows 10 Pro 1709 works for me, but 1803 does not (may be the UEFI). [I have heard that the 1803 version comes with a Spectre patch and the performance is bad](https://www.reddit.com/r/VFIO/comments/97unx4/passmark_lousy_2d_graphics_performance_on_windows/). The Spectre patch can be disabled.
- [ ] Not kill X, [`shifter` & `xpra` may be the solution](https://www.linuxquestions.org/questions/linux-desktop-74/move-application-between-desktops-736982/#post4161705). Also [uswsusp (userspace software suspend)](https://wiki.archlinux.org/index.php/Uswsusp). [Source](https://www.reddit.com/r/linux_gaming/comments/98376e/i_am_creating_a_guide_for_gpu_passthrough_with/e4ebaoj/)
And you must supply QEMU with the Full GPU's ROM extracted extracted using a tool called "nvagetbios" , which you can find in a package called "envytools"
