nix/vms/win10.nix

{
  nvramPath,
  pkgs,
  uuid,
}:

{
  inherit uuid;
  type = "kvm";

  title = "Windows 10";
  name = "win10";
  description = "A Windows 10 vm define in nix";

  sysinfo = {
    type = "smbios";
    bios.entry = [
      {
        name = "vendor";
        value = "INSYDE Corp.";
      }
      {
        name = "version";
        value = "03.02";
      }
      {
        name = "date";
        value = "01/23/2024";
      }
    ];
    system.entry = [
      {
        name = "manufacturer";
        value = "Framework";
      }
      {
        name = "product";
        value = "Laptop 16 (AMD Ryzen 7040 Series)";
      }
      {
        name = "version";
        value = "AG";
      }
      {
        name = "serial";
        value = "FRAGADDPAG4096006K";
      }
      {
        name = "uuid";
        value = uuid;
      }
      {
        name = "sku";
        value = "FRAGACCP0G";
      }
      {
        name = "family";
        value = "16in";
      }
    ];
  };
  vcpu = {
    count = 4;
    placement = "static";
  };
  memory = {
    count = 16;
    unit = "GiB";
  };
  cputune = {
    vcpupin = [
      {
        vcpu = 0;
        cpuset = "4";
      }
      {
        vcpu = 1;
        cpuset = "5";
      }
      {
        vcpu = 2;
        cpuset = "6";
      }
      {
        vcpu = 3;
        cpuset = "7";
      }
    ];
  };
  cpu = {
    mode = "host-passthrough";
    check = "none";
    migratable = true;
    cache = {
      level = 3;
      mode = "emulate";
    };
    feature = [
      {
        policy = "disable";
        name = "hypervisor";
      }
      {
        policy = "require";
        name = "svm";
      }
      {
        policy = "require";
        name = "topoext";
      }
    ];
    topology = {
      sockets = 1;
      dies = 1;
      cores = 2;
      threads = 2;
    };
  };

  # OS
  os = {
    type = "hvm";
    arch = "x86_64";
    machine = "pc-q35-8.2";
    loader = {
      readonly = true;
      type = "pflash";
      path = "${pkgs.OVMFFull.fd}/FV/OVMF_CODE.ms.fd";
    };
    nvram = {
      template = "${pkgs.OVMFFull.fd}/FV/OVMF_VARS.ms.fd";
      path = "${nvramPath}/win10gpu.nvram";
    };
    smbios.mode = "sysinfo";
  };

  features = {
    acpi = { };
    apic = { };
    hyperv = {
      mode = "custom";
      relaxed = {
        state = true;
      };
      vapic = {
        state = true;
      };
      spinlocks = {
        state = true;
        retries = 8191;
      };
      vendor_id = {
        state = true;
        value = "1234567890ab";
      };
    };
    kvm.hidden = {
      state = true;
    };
    vmport.state = false;
  };

  clock = {
    offset = "localtime";
    timer = [
      {
        name = "rtc";
        tickpolicy = "catchup";
      }
      {
        name = "pit";
        tickpolicy = "delay";
      }
      {
        name = "hpet";
        present = false;
      }
      {
        name = "hypervclock";
        present = true;
      }
    ];
  };

  pm = {
    suspend-to-mem = {
      enabled = false;
    };
    suspend-to-disk = {
      enabled = false;
    };
  };

  devices = {
    emulator = "${pkgs.qemu}/bin/qemu-system-x86_64";

    # Disks
    hostdev = [];

    # Input
    input = [
      {
        type = "keyboard";
        bus = "virtio";
      }
      {
        type = "mouse";
        bus = "virtio";
      }
    ];

    # Video + Audio
    graphics = {
      type = "spice";
      autoport = true;
      listen = {
        type = "address";
      };
      image = {
        compression = false;
      };
    };

    video = {
      model = {
        type = "vga";
        vram = 65536;
        heads = 1;
        primary = true;
      };
    };

    sound = {
      model = "ich9";
    };
    audio = {
      id = 1;
      type = "spice";
    };

    # Interfaces
    controller = [
      {
        type = "usb";
        index = 0;
        model = "qemu-xhci";
        ports = 15;
      }
      {
        type = "pci";
        index = 0;
        model = "pcie-root";
      }
      {
        type = "virtio-serial";
        index = 0;
      }
    ];

    serial = [
      {
        type = "pty";
        target = {
          type = "isa-serial";
          port = 0;
          model.name = "isa-serial";
        };
      }
    ];

    console = [
      {
        type = "pty";
        target = {
          type = "serial";
          port = 0;
        };
      }
    ];

    channel = [
      {
        type = "spicevmc";
        target = {
          type = "virtio";
          name = "com.redhat.spice.0";
        };
      }
    ];

    # Other
    watchdog = {
      model = "itco";
      action = "reset";
    };
    memballoon.model = "none";
  };

  qemu-commandline = {
    arg = [
      { value = "-cpu"; }
      { value = "host,kvm=off,hv_time,hv_vendor_id=null,-hypervisor"; }
      { value = "-machine"; }
      { value = "q35"; }
      { value = "-device"; }
      { value = "{\"driver\":\"ivshmem-plain\",\"id\":\"shmem0\",\"memdev\":\"looking-glass\"}"; }
      { value = "-object"; }
      {
        value = "{\"qom-type\":\"memory-backend-file\",\"id\":\"looking-glass\",\"mem-path\":\"/dev/kvmfr0\",\"size\":134217728,\"share\":true}";
      }
    ];
  };
}