WiP! nixos: Vbox guests
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{ flake }:
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let
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baseModules =
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[ ./genode-core.nix ./genode-init.nix ./gui ./hardware.nix ./systemd.nix ];
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baseModules = [
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./genode-core.nix
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./genode-init.nix
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./guest-vbox-linux.nix
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./gui
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./hardware.nix
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./systemd.nix
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];
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in {
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x86_64 = {
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imports = [ baseModules ];
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imports = baseModules;
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nixpkgs = rec {
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localSystem = "x86_64-linux";
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crossSystem = "x86_64-genode";
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{ config, lib, pkgs, modulesPath, ... }:
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with lib;
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let cfg = config.genode.vbox;
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in {
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options.genode.vbox.guests = mkOption {
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type = types.attrsOf (types.submodule ({ config, options, name, ... }: {
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options = {
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bootFormat = mkOption {
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default = "vdi";
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type = types.enum [ "iso" "vdi" ];
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description = "Set boot media format.";
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};
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memorySize = mkOption {
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type = types.int;
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default = 1536;
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description = ''
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The amount of RAM in MiB allocated to the VirtualBox guest.
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'';
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};
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config = mkOption {
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description = ''
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A specification of the desired configuration of this
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guest VM, as a NixOS module.
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'';
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default = { };
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type = mkOptionType {
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name = "Toplevel NixOS config";
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merge = loc: defs:
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(import "${modulesPath}/../lib/eval-config.nix" {
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inherit (config.nixpkgs) system;
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modules = {
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iso = [ "${modulesPath}/installer/cd-dvd/iso-image.nix" ];
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vdi = [
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"${modulesPath}/virtualisation/virtualbox-image.nix"
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{ virtualbox.memorySize = cfg.guests.${name}.memorySize; }
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];
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}.${genodeConfig.guests.${name}.bootFormat}
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++ [{ system.nixos.tags = [ name ]; }]
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++ (map (x: x.value) defs);
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prefix = [ "guests" name ];
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}).config;
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};
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};
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};
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}));
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};
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config = {
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genode.init.children = mapAttrs' (name: cfg:
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let
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boot = {
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iso = rec {
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filename = "nixos.iso";
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drv = pkgs.callPackage
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"${modulesPath'}/../lib/make-iso9660-image.nix"
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# call the ISO utility from our nixpkgs with the package set of the guest
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{
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isoName = filename;
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inherit (config.isoImage) volumeID contents;
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};
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format = "< ISO | VDI >.ISO";
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storeRoot = "${baseNameOf drv}/iso";
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uuid = "81763434-9a51-49e8-9444-528a5a28c4bc";
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};
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vdi = rec {
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filename = "nixos.vdi";
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drv = import "${modulesPath'}/../lib/make-disk-image.nix" {
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inherit config lib pkgs;
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diskSize = config.virtualbox.baseImageSize;
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partitionTableType = "legacy";
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name = "nixos-${pkgs.stdenv.hostPlatform.system}.vdi";
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format = "vdi";
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};
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format = "< ISO | VDI >.VDI";
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storeRoot = baseNameOf drv;
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uuid = ''
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$(${pkgs.virtualbox}/bin/VBoxManage showmediuminfo "${boot.drv}/${boot.filename}" | awk '/^UUID:/ {print $2}')'';
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};
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}.${cfg.bootFormat};
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in {
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inputs = with pkgs.genodePackages; [ libiconv vbox5 vfs_pipe ];
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coreROMs = [ "platform_info" ];
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configFile = pkgs.writeText "${name}.vbox.dhall" ''
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${./vbox-guest.dhall}
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{ bootFilename = "${boot.filename}"
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, bootFormat = "${boot.format}"
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, bootPkg = "${boot.storeRoot}"
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, bootUuid = ${boot.uuid}
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, memorySize = ${toString cfg.memorySize}
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, vmName = "${vmName}"
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}
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'';
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}) config.genode.vbox.guests;
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};
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}
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@ -0,0 +1,217 @@
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let Genode = env:DHALL_GENODE
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let Prelude = Genode.Prelude
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let XML = Prelude.XML
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let Init = Genode.Init
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let Child = Init.Child
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let Resources = Init.Resources
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let ServiceRoute = Init.ServiceRoute
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let Libc = Genode.Libc
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let VFS = Genode.VFS
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let BootFormat = < ISO | VDI >
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let Params
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: Type
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= { bootFilename : Text
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, bootPkg : Text
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, bootUuid : Text
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, bootFormat : BootFormat
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, memorySize : Natural
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, vmName : Text
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}
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let toVbox
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: Params → Genode.Init.Child.Type
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= λ(params : Params) →
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let vboxConfig =
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let hardDisks =
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merge
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{ ISO = XML.text ""
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, VDI =
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XML.leaf
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{ name = "HardDisk"
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, attributes = toMap
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{ uuid = "{${params.bootUuid}}"
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, location = "${params.bootFilename}"
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, format = "VDI"
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, type = "Normal"
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}
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}
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}
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params.bootFormat
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let dvdImages =
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merge
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{ ISO =
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XML.leaf
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{ name = "Image"
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, attributes = toMap
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{ uuid = "{${params.bootUuid}}"
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, location = "${params.bootFilename}"
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}
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}
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, VDI = XML.text ""
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}
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params.bootFormat
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let attachedDevices =
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XML.element
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{ name = "AttachedDevice"
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, attributes =
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merge
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{ ISO = toMap
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{ passthrough = "false"
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, type = "DVD"
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, port = "3"
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, device = "0"
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}
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, VDI = toMap
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{ type = "HardDisk", port = "0", device = "0" }
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}
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params.bootFormat
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, content =
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[ XML.leaf
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{ name = "Image"
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, attributes = toMap
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{ uuid = "{${params.bootUuid}}" }
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}
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]
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}
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in ''
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<VirtualBox xmlns="http://www.virtualbox.org/" version="1.14-freebsd">
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<Machine uuid="{37ab43a5-38d8-4491-93f5-5b0b077f5c32}" name="${params.vmName}" OSType="Linux26_64" snapshotFolder="Snapshots" lastStateChange="2018-01-23T18:40:00Z">
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<MediaRegistry>
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<HardDisks>${XML.render hardDisks}</HardDisks>
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<DVDImages>${XML.render dvdImages}</DVDImages>
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</MediaRegistry>
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<Hardware>
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<CPU count="2">
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<PAE enabled="true"/>
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<LongMode enabled="true"/>
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<HardwareVirtExLargePages enabled="false"/>
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</CPU>
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<Memory RAMSize="${Prelude.Natural.show
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params.memorySize}"/>
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<HID Pointing="USBTablet"/>
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<Display VRAMSize="20"/>
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<RemoteDisplay enabled="false"/>
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<BIOS>
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<IOAPIC enabled="true"/>
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</BIOS>
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<USB>
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<Controllers/>
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</USB>
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<Network>
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<Adapter slot="0" enabled="true" MACAddress="0800271D7901" cable="true" type="82540EM">
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<BridgedInterface/>
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</Adapter>
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</Network>
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<UART>
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<Port slot="0" enabled="false" IOBase="0x3f8" IRQ="4" hostMode="Disconnected"/>
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<Port slot="1" enabled="false" IOBase="0x2f8" IRQ="3" hostMode="Disconnected"/>
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</UART>
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<LPT>
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<Port slot="0" enabled="false" IOBase="0x378" IRQ="7"/>
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<Port slot="1" enabled="false" IOBase="0x378" IRQ="7"/>
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</LPT>
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<AudioAdapter controller="HDA" driver="OSS" enabled="false"/>
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<RTC localOrUTC="UTC"/>
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<SharedFolders/>
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</Hardware>
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<StorageControllers>
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<StorageController name="SATA" type="AHCI" PortCount="4" useHostIOCache="true" Bootable="true" IDE0MasterEmulationPort="0" IDE0SlaveEmulationPort="1" IDE1MasterEmulationPort="2" IDE1SlaveEmulationPort="3">
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${XML.render attachedDevices}
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</StorageController>
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</StorageControllers>
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</Machine>
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</VirtualBox>
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''
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in Child.flat
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Child.Attributes::{
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, binary = "virtualbox5"
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, config =
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( Libc.toConfig
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Libc::{
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, vfs =
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let mutableVfs =
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let fsNode =
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[ XML.leaf
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{ name = "fs"
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, attributes = toMap
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{ label = "nix/store"
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, root = "${params.bootPkg}"
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}
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}
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]
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in merge
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{ ISO =
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[ XML.leaf
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{ name = "fs"
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, attributes = toMap
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{ writeable = "yes" }
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}
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, XML.element
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{ name = "import"
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, attributes = toMap
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{ overwrite = "no" }
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, content = fsNode
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}
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]
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, VDI =
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[ XML.leaf
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{ name = "fs"
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, attributes = toMap
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{ writeable = "yes" }
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}
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, XML.element
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{ name = "import"
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, attributes = toMap
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{ overwrite = "no" }
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, content = fsNode
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}
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]
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}
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params.bootFormat
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in [ VFS.inline "machine.vbox" vboxConfig
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, VFS.dir
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"dev"
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[ VFS.leaf "log"
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, VFS.leaf "null"
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, VFS.leaf "rtc"
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]
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]
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# mutableVfs
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}
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)
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with attributes = toMap
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{ vbox_file = "machine.vbox", vm_name = params.vmName }
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, resources = Resources::{
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, caps = 1024
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, ram =
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Genode.units.MiB 128 + Genode.units.MiB params.memorySize
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}
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, romReports = [ "clipboard", "shape" ]
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, routes =
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[ ServiceRoute.parent "File_system"
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, ServiceRoute.parent "Nic"
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, ServiceRoute.parent "Gui"
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, ServiceRoute.parent "Rtc"
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, ServiceRoute.parent "Timer"
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, ServiceRoute.parent "VM"
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, ServiceRoute.parent "Report"
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]
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}
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in toVbox
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