From b838e9ca78dfea769d0a4eaa8d74d1c2e2f615bc Mon Sep 17 00:00:00 2001
From: js0ny <contact@js0ny.net>
Date: Mon, 10 Nov 2025 15:37:49 +0000
Subject: [PATCH] feat(vfio): try vfio setup on zephyrus

---
 nixcfgs/hosts/zephyrus/default.nix            |  2 +-
 .../modules/nixos/hardware/nvidia-vfio.nix    | 24 +++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 nixcfgs/modules/nixos/hardware/nvidia-vfio.nix

diff --git a/nixcfgs/hosts/zephyrus/default.nix b/nixcfgs/hosts/zephyrus/default.nix
index 2322ca7..5f6923f 100644
--- a/nixcfgs/hosts/zephyrus/default.nix
+++ b/nixcfgs/hosts/zephyrus/default.nix
@@ -14,7 +14,7 @@
     ../../modules/nixos/desktop/laptop.nix
 
     # hardware drivers
-    ../../modules/nixos/hardware/nvidia.nix
+    ../../modules/nixos/hardware/nvidia-vfio.nix
 
     # udev rules
     ../../modules/nixos/hardware/udev/basys3.nix
diff --git a/nixcfgs/modules/nixos/hardware/nvidia-vfio.nix b/nixcfgs/modules/nixos/hardware/nvidia-vfio.nix
new file mode 100644
index 0000000..397601c
--- /dev/null
+++ b/nixcfgs/modules/nixos/hardware/nvidia-vfio.nix
@@ -0,0 +1,24 @@
+# This is highly experimental and WIP. Do not use it.
+{...}: {
+  boot.extraModprobeConfig = ''
+    blacklist nouveau
+    options nouveau modeset=0
+  '';
+
+  services.xserver.videoDrivers = ["modesetting"];
+  boot.blacklistedKernelModules = ["nouveau" "nvidia" "nvidia_drm" "nvidia_modeset"];
+  hardware.nvidia = {
+    # enable = false;
+    modesetting.enable = false;
+    powerManagement.enable = false;
+  };
+  # Enable ssh to solve issues temporarily
+  services.openssh = {
+    enable = true;
+    settings = {
+      UseDns = true;
+      PermitRootLogin = "no";
+      PasswordAuthentication = true;
+    };
+  };
+}