sys/virt/libvirt.nix


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{
  config,
  flakes,
  lib,
  pkgs,
  ...
}:
with lib; let
  cfg = config.local.virt;

  inherit (config.lib.local) importAll;

  doms = mapAttrs (_: dom: dom {inherit config lib pkgs;}) (importAll {root = ./dom;});
in {
  options.local.virt = {
    enable = mkEnableOption "hypervisor support";

    dom =
      mapAttrs
      (name: _: {
        enable = mkEnableOption "domain ${name}";
      })
      doms;
  };

  config = mkIf cfg.enable {
    local.boot.impermanence.directories = [
      {
        directory = "/var/dom";
        user = "root";
        group = "qemu-libvirtd";
        mode = "u=rwx,g=rx,o=";
      }
    ];

    virtualisation = {
      libvirt = {
        enable = any (dom: dom.enable) (attrValues cfg.dom);

        connections."qemu:///system".domains = let
          makeDomain = def: {
            active = true;
            restart = false;
            definition = flakes.nixvirt.lib.domain.writeXML def;
          };
        in
          map makeDomain (attrValues (filterAttrs (name: _: cfg.dom.${name}.enable) doms));

        swtpm.enable = true;
      };

      libvirtd = {
        enable = true;

        qemu = {
          runAsRoot = false;

          ovmf.enable = true;
          swtpm.enable = true;
        };
      };
    };
  };
}