Commit e6cd363c authored by Thomas Bereknyei's avatar Thomas Bereknyei
Browse files

nixos/qemu-vm: Allow 9p cache to be configured

parent 6bea46b6

nixos/modules/virtualisation/qemu-vm.nix

+18 −1
Original line number Diff line number Diff line
@@ -917,6 +917,23 @@ in 
      '';

    };



    virtualisation.nixStore9pCache = mkOption {

      type = types.enum [

        "loose"

        "none"

        "fscache"

      ];

      default = "loose";

      description = ''

        Type of 9p cache to use when mounting host nix store. "none" provides

        no caching. "loose" enables Linux's local VFS cache. "fscache" uses Linux's

        fscache subsystem.



        This option is only respected when {option}`virtualisation.mountHostNixStore`

        is enabled.

      '';

    };



    virtualisation.directBoot = {

      enable = mkOption {

        type = types.bool;
@@ -1369,7 +1386,7 @@ in 
            "msize=${toString cfg.msize}"

            "x-systemd.requires=modprobe@9pnet_virtio.service"

          ]

          ++ lib.optional (tag == "nix-store") "cache=loose";

          ++ lib.optional (tag == "nix-store") "cache=${cfg.nixStore9pCache}";

        };

      in

      lib.mkMerge [