vm: add gpu passthrough options
Signed-off-by: Myned <dev@bjork.tech>
This commit is contained in:
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67d2373cec
commit
c3a1eb812c
GPG key ID:
C7224454F7881A34
3 changed files with 90 additions and 17 deletions
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@ -9,6 +9,15 @@
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width = 3440;
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height = 1440;
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refresh = 100;
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vm.passthrough = {
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enable = true;
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driver = "amdgpu";
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guest = "myndows";
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id = "1002:73df";
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init = true;
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intel = true;
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node = "pci_0000_03_00_0";
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};
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};
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boot = {
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@ -9,14 +9,17 @@ with lib; let
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audio = config.home-manager.users.${config.custom.username}.home.file.".local/bin/audio".source;
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clipse = "${pkgs.clipse}/bin/clipse";
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firefox-esr = "${config.home-manager.users.${config.custom.username}.programs.firefox.finalPackage}/bin/firefox-esr";
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grep = "${pkgs.gnugrep}/bin/grep";
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left = config.home-manager.users.${config.custom.username}.home.file.".local/bin/left".source;
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loupe = "${pkgs.loupe}/bin/loupe";
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modprobe = "${pkgs.kmod}/bin/modprobe";
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nautilus = "${pkgs.nautilus}/bin/nautilus";
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pkill = "${pkgs.procps}/bin/pkill";
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rm = "${pkgs.coreutils}/bin/rm";
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sleep = "${pkgs.coreutils}/bin/sleep";
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sway-audio-idle-inhibit = "${pkgs.sway-audio-idle-inhibit}/bin/sway-audio-idle-inhibit";
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systemctl = "${pkgs.systemd}/bin/systemctl";
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virsh = "${config.virtualisation.libvirtd.package}/bin/virsh";
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waybar = "${config.home-manager.users.${config.custom.username}.programs.waybar.package}/bin/waybar";
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cfg = config.custom.desktops.hyprland.settings;
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@ -66,8 +69,7 @@ in {
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# https://wiki.hyprland.org/Configuring/Keywords/#executing
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exec-once =
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optionals config.custom.wallpaper ["wallpaper"]
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++ [
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[
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sway-audio-idle-inhibit # Inhibit idle while audio is playing
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"${audio} --init" # Enforce audio profile state
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"${rm} ~/.cache/walker/clipboard.gob" # Clear clipboard history
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@ -77,6 +79,13 @@ in {
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# HACK: Launch hidden GTK windows to reduce startup time
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"[workspace special:hidden silent] ${loupe}"
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"[workspace special:hidden silent] ${nautilus}"
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]
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++ optionals config.custom.wallpaper [
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"wallpaper"
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]
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# HACK: Delay driver initialization to work around reset issues
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++ optionals config.custom.settings.vm.passthrough.init [
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"${virsh} list | ${grep} ${config.custom.settings.vm.passthrough.guest} || sudo ${modprobe} ${config.custom.settings.vm.passthrough.driver}"
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];
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# https://wiki.hyprland.org/Configuring/Variables/#xwayland
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@ -6,12 +6,24 @@
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...
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}:
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with lib; let
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virsh = "${config.virtualisation.libvirtd.package}/bin/virsh";
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cfg = config.custom.settings.vm;
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in {
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options.custom.settings.vm = {
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enable = mkOption {default = false;};
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libvirt = mkOption {default = true;};
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virtualbox = mkOption {default = false;};
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passthrough = {
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enable = mkOption {default = false;};
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driver = mkOption {default = null;}; #?? lspci -k
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guest = mkOption {default = null;}; #?? virsh list --all
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id = mkOption {default = null;}; #?? lspci -nn
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init = mkOption {default = false;};
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intel = mkOption {default = false;};
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node = mkOption {default = null;}; #?? virsh nodedev-list
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};
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};
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config = mkIf cfg.enable {
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@ -23,12 +35,37 @@ in {
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onBoot = "ignore";
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onShutdown = "shutdown";
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# https://libvirt.org/hooks.html
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hooks.qemu = {
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# Attach/detach GPU for passthrough
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passthrough = mkIf cfg.passthrough.enable (pkgs.writeShellScript "passthrough" ''
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if [[ "$1" == "${cfg.passthrough.guest}" ]]; then
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case "$2" in
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prepare)
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${virsh} nodedev-detach ${cfg.passthrough.node}
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;;
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release)
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${virsh} nodedev-reattach ${cfg.passthrough.node}
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;;
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*)
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exit
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;;
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esac
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fi
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'');
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};
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qemu = {
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swtpm.enable = true; # TPM emulation
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# BUG: Windows requires global mountpoint for some applications (\\.\*: instead of *:)
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# https://github.com/virtio-win/kvm-guest-drivers-windows/issues/950
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# https://virtio-win.github.io/Knowledge-Base/Virtiofs:-Shared-file-system
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#// vhostUserPackages = with pkgs; [virtiofsd]; # virtiofs support
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# Build OVMF with Windows 11 support
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ovmf.packages = [
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(pkgs.OVMF.override {
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ovmf.packages = with pkgs; [
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(OVMF.override {
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secureBoot = true;
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tpmSupport = true;
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})
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@ -77,24 +114,42 @@ in {
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++ lib.optionals cfg.virtualbox ["vboxusers"];
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systemd = mkIf cfg.libvirt {
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services = {
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# Fix resume messages polluting tty
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services.libvirt-guests.serviceConfig.StandardOutput = "journal";
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libvirt-guests.serviceConfig = {
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StandardOutput = "journal";
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};
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};
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tmpfiles.settings."10-vm" = {
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# HACK: Manually link image to default directory
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"/var/lib/libvirt/images/virtio-win.iso" = {
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"L+" = {
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argument = "${inputs.virtio-win}";
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};
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};
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tmpfiles.rules = let
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firmware = pkgs.runCommandLocal "qemu-firmware" {} ''
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mkdir $out
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cp ${pkgs.qemu}/share/qemu/firmware/*.json $out
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substituteInPlace $out/*.json --replace ${pkgs.qemu} /run/current-system/sw
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'';
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in [
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# HACK: Fix libvirt not automatically locating firmware
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# https://github.com/NixOS/nixpkgs/issues/115996#issuecomment-2224296279
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# https://libvirt.org/formatdomain.html#bios-bootloader
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"L+ /var/lib/qemu/firmware - - - - ${firmware}"
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"/var/lib/qemu/firmware" = {
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"L+" = {
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argument = "${pkgs.runCommandLocal "qemu-firmware" {} ''
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mkdir $out
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cp ${pkgs.qemu}/share/qemu/firmware/*.json $out
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substituteInPlace $out/*.json --replace ${pkgs.qemu} /run/current-system/sw
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''}";
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};
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};
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};
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};
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# HACK: Manually link image to default directory
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"L+ /var/lib/libvirt/images/virtio-win.iso - - - - ${inputs.virtio-win}"
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];
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boot = mkIf cfg.passthrough.enable {
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# https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Isolating_the_GPU
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blacklistedKernelModules = mkIf cfg.passthrough.init [cfg.passthrough.driver];
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# https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Enabling_IOMMU
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kernelParams = mkIf cfg.passthrough.intel ["intel_iommu=on"];
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};
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};
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}
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