fix: enable kvm-intel/kvm-amd per host

hosts/12kingdoms_shoukei/default.nix

@@ -19,6 +19,9 @@
     ./impermanence.nix
   ];
 
+  boot.kernelModules = ["kvm-amd" "kvm-intel"];
+  boot.extraModprobeConfig = "options kvm_amd nested=1"; # for amd cpu
+
   networking = {
     hostName = "shoukei"; # Define your hostname.
     # configures the network interface(include wireless) via `nmcli` & `nmtui`

hosts/idols_ai/hardware-configuration.nix

@@ -23,7 +23,8 @@
 
   boot.initrd.availableKernelModules = ["xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod"];
   boot.initrd.kernelModules = [];
-  boot.kernelModules = ["kvm-intel"];
+  boot.kernelModules = ["kvm-intel"]; # kvm virtualization support
+  boot.extraModprobeConfig = "options kvm_intel nested=1"; # for intel cpu
   boot.kernelParams = ["nvidia.NVreg_PreserveVideoMemoryAllocations=1"];
   boot.extraModulePackages = [];
   # clear /tmp on boot to get a stateless /tmp directory.

hosts/idols_aquamarine/default.nix

@@ -19,6 +19,9 @@
     "cifs" # mount windows share
   ];
 
+  boot.kernelModules = ["kvm-amd" "kvm-intel"];
+  boot.extraModprobeConfig = "options kvm_amd nested=1"; # for amd cpu
+
   networking = {
     hostName = "aquamarine"; # Define your hostname.
     wireless.enable = false; # Enables wireless support via wpa_supplicant.

hosts/idols_kana/default.nix

@@ -19,6 +19,9 @@
     "cifs" # mount windows share
   ];
 
+  boot.kernelModules = ["kvm-amd" "kvm-intel"];
+  boot.extraModprobeConfig = "options kvm_amd nested=1"; # for amd cpu
+
   networking = {
     hostName = "kana"; # Define your hostname.
     wireless.enable = false; # Enables wireless support via wpa_supplicant.

hosts/idols_ruby/default.nix

@@ -19,6 +19,9 @@
     "cifs" # mount windows share
   ];
 
+  boot.kernelModules = ["kvm-amd" "kvm-intel"];
+  boot.extraModprobeConfig = "options kvm_amd nested=1"; # for amd cpu
+
   networking = {
     hostName = "ruby"; # Define your hostname.
     wireless.enable = false; # Enables wireless support via wpa_supplicant.

modules/nixos/desktop/virtualisation.nix

@@ -5,10 +5,18 @@
   #
   ###################################################################################
 
-  boot.kernelModules = ["kvm-amd" "kvm-intel" "vfio-pci"];
   # Enable nested virsualization, required by security containers and nested vm.
-  boot.extraModprobeConfig = "options kvm_intel nested=1"; # for intel cpu
+  # This should be set per host in /hosts, not here.
+  #
+  ## For AMD CPU, add "kvm-amd" to kernelModules.
+  # boot.kernelModules = ["kvm-amd" "kvm-intel"];
   # boot.extraModprobeConfig = "options kvm_amd nested=1";  # for amd cpu
+  #
+  ## For Intel CPU, add "kvm-intel" to kernelModules.
+  # boot.kernelModules = ["kvm-intel"];
+  # boot.extraModprobeConfig = "options kvm_intel nested=1"; # for intel cpu
+
+  boot.kernelModules = ["vfio-pci"];
 
   virtualisation = {
     libvirtd = {