From b71f27a2179cdfa58492e2696246d3d8e55f9844 Mon Sep 17 00:00:00 2001
From: Raghuram Subramani <raghus2247@gmail.com>
Date: Mon, 11 Mar 2024 21:05:53 +0530
Subject: update

---
 machines/x/configuration.nix |  5 +++--
 modules/passthrough.nix      | 25 +++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 modules/passthrough.nix

diff --git a/machines/x/configuration.nix b/machines/x/configuration.nix
index 62c119e..f3e60e4 100644
--- a/machines/x/configuration.nix
+++ b/machines/x/configuration.nix
@@ -9,6 +9,7 @@
     "amdgpu.nix"
     "amd.nix"
     "nvidia.nix"
+    "passthrough.nix"
     "core/audio.nix"
     "core/bluetooth.nix"
     "core/fonts.nix"
@@ -34,8 +35,8 @@
     settings = {
       CPU_SCALING_GOVERNOR_ON_AC = "performance";
       CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
-    }
-  }
+    };
+  };
 
   networking.hostName = "x";
 
diff --git a/modules/passthrough.nix b/modules/passthrough.nix
new file mode 100644
index 0000000..23afa88
--- /dev/null
+++ b/modules/passthrough.nix
@@ -0,0 +1,25 @@
+{ pkgs, lib, config, ... }:
+let
+  # RTX 3070 Ti
+  gpuIDs = [
+    "10de:28e0" # Graphics
+    "10de:22be" # Audio
+  ];
+in {
+  boot = {
+    initrd.kernelModules = [
+      "vfio_pci"
+      "vfio"
+      "vfio_iommu_type1"
+
+      "nvidia"
+      "nvidia_modeset"
+      "nvidia_uvm"
+      "nvidia_drm"
+    ];
+
+    kernelParams = [
+      ("vfio-pci.ids=" + lib.concatStringsSep "," gpuIDs)
+    ];
+  };
+}
-- 
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