515 строки
17 KiB
Nix
515 строки
17 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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{
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options = {
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networking.interfaces = lib.mkOption {
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type = with types;
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attrsOf (submodule ({ ... }: {
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options.genode = {
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driver = mkOption {
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type = types.enum [ "ipxe" "virtio" ];
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description = "Nic driver to use for this interface.";
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};
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stack = mkOption {
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type = with types; nullOr (enum [ "lwip" "lxip" ]);
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default = "lwip";
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description = "IP stack to use for this interface.";
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};
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};
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}));
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};
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hardware.genode.platform.policies = lib.mkOption {
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type = with types; listOf path;
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default = [ ];
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description = ''
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List of policies to append to the Genode platform driver.
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Type is Init.Config.Policy.Type.
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'';
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};
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hardware.genode = {
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ahci.enable = lib.mkEnableOption "AHCI (SATA) block driver";
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framebuffer = {
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enable = lib.mkEnableOption "framebuffer driver";
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driver = mkOption {
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type = types.enum [ "boot" "vesa" ];
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default = "vesa";
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};
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};
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usb = {
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enable = lib.mkEnableOption "USB driver";
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storage.enable = lib.mkEnableOption "USB mass storage driver";
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ehciSupport = lib.mkEnableOption "EHCI support" // { default = true; };
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ohciSupport = lib.mkEnableOption "OHCI support" // { default = true; };
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uhciSupport = lib.mkEnableOption "UHCI support" // { default = false; };
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xhciSupport = lib.mkEnableOption "XHCI support" // { default = true; };
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};
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};
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};
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config = {
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assertions = with builtins;
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let
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addrCheck = name: interface: {
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assertion = lessThan (length interface.ipv4.addresses) 2;
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message = "Genode interfaces do not support multihoming.";
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};
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routeCheck = name: interface: {
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assertion = lessThan (length interface.ipv4.routes) 2;
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message = "Genode interfaces do not support multiple routes.";
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};
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policyCheck = name: interface:
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let
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clientList = filter (x x != null) (lib.mapAttrsToList
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(childName: value:
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if any (nic: nic == name) value.routeToNics then
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childName
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else
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null) config.genode.init.children);
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in {
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assertion =
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trace clientList (clientList == [ ] || length clientList == 1);
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message = "Multiple routes to Nic ${name}, ${clientList}";
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};
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in lib.lists.concatMap
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(f: lib.mapAttrsToList f config.networking.interfaces) [
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addrCheck
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routeCheck
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policyCheck
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];
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hardware.genode.ahci.enable = config.genode.boot.storeBackend == "ahci";
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hardware.genode.usb.storage.enable = config.genode.boot.storeBackend
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== "usb";
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hardware.genode.usb.enable = config.hardware.genode.usb.storage.enable;
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hardware.genode.platform.policies = lib.lists.imap0 (i: name:
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builtins.toFile (name + ".platform-policy.dhall") ''
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let Genode = env:DHALL_GENODE
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in Genode.Init.Config.Policy::{
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, service = "Platform"
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, label = Genode.Init.LabelSelector.prefix "nixos -> ${name}.driver"
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, content =
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[ Genode.Prelude.XML.leaf
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{ name = "pci"
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, attributes = toMap {
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, class = "ETHERNET"
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, index = "${toString i}"
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}
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}
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]
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}
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'') (builtins.attrNames config.networking.interfaces)
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++ (lib.optional config.hardware.genode.ahci.enable
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(builtins.toFile ("ahci.platform-policy.dhall") ''
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let Genode = env:DHALL_GENODE
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in Genode.Init.Config.Policy::{
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, service = "Platform"
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, label = Genode.Init.LabelSelector.prefix "ahci_drv"
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, content =
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[ Genode.Prelude.XML.leaf
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{ name = "pci", attributes = toMap { class = "AHCI" } }
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]
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}
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'')) ++ (lib.optional config.hardware.genode.framebuffer.enable
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(builtins.toFile ("framebuffer.platform-policy.dhall") ''
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let Genode = env:DHALL_GENODE
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in Genode.Init.Config.Policy::{
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, service = "Platform"
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, label = Genode.Init.LabelSelector.prefix "fb_drv"
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, content =
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[ Genode.Prelude.XML.leaf
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{ name = "pci", attributes = toMap { class = "VGA" } }
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]
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}
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'')) ++ (lib.optional config.hardware.genode.usb.enable
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(builtins.toFile ("usb.platform-policy.dhall") ''
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let Genode = env:DHALL_GENODE
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in Genode.Init.Config.Policy::{
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, service = "Platform"
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, label = Genode.Init.LabelSelector.prefix "usb_drv"
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, content =
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[ Genode.Prelude.XML.leaf
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{ name = "pci", attributes = toMap { class = "USB" } }
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]
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}
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''));
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genode.init.children = let
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nics = mapAttrs' (name: interface:
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let name' = name + ".driver";
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in {
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name = name';
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value = let
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binary = with pkgs.genodePackages;
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{
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ipxe = ipxe_nic_drv;
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virtio = virtio_nic_drv;
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}.${interface.genode.driver};
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in {
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inputs = [ binary ];
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configFile = let
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policy = lib.mapAttrsToList (childName: value:
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if any (nic: nic == name) value.routeToNics then ''
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Init.Config.Policy::{
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, service = "Nic"
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, label = Init.LabelSelector.prefix "${childName}"
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}
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'' else
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"") config.genode.init.children;
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in pkgs.writeText "${name'}.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "${binary}/bin/${binary.pname}"
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, resources = Init.Resources::{
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, caps = 128
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, ram = Genode.units.MiB 4
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}
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, routes = [
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, Init.ServiceRoute.parent "IO_MEM"
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, Init.ServiceRoute.parent "Platform"
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]
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, config = Init.Config::{
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, attributes = toMap { verbose = "true" }
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, policies =
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[ ${toString policy} ]
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: List Init.Config.Policy.Type
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}
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}
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'';
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};
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}) config.networking.interfaces;
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sockets = mapAttrs' (name: interface:
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let name' = name + ".sockets";
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in {
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name = name';
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value = if interface.genode.stack == null then
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null
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else {
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inputs = with pkgs.genodePackages;
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{
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lwip = [ vfs_lwip ];
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lxip = [ vfs_lxip ];
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}.${interface.genode.stack};
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routeToNics = [ name ];
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configFile = let
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binary = "${pkgs.genodePackages.vfs}/bin/vfs";
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ram = {
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lwip = 16;
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lxip = 32;
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}.${interface.genode.stack};
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settings = with builtins;
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lib.optionals (interface.ipv4.addresses != [ ])
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(let addr = head interface.ipv4.addresses;
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in [
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{
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name = "ip_addr";
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value = addr.address;
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}
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{
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name = "netmask";
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value = if addr.prefixLength == 24 then
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"255.255.255.0"
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else
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throw "missing prefix to netmask conversion";
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}
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]) ++ lib.optional (interface.ipv4.routes != [ ])
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(let route = head interface.ipv4.routes;
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in {
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name = "gateway";
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value = route.address;
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}) ++ lib.optional (interface.useDHCP != null) {
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name = "dhcp";
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value = if interface.useDHCP then "true" else "false";
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};
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settingsMap = builtins.concatStringsSep ", " (map
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({ name, value }:
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''{ mapKey = "${name}", mapValue = "${value}" }'') settings);
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in pkgs.writeText "${name'}.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "${binary}"
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, provides = [ "File_system" ]
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, resources = Init.Resources::{
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, caps = 128
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, ram = Genode.units.MiB ${toString ram}
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}
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, config = Init.Config::{
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, policies =
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[ Init.Config.Policy::{
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, service = "File_system"
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, label = Init.LabelSelector.suffix "${name'}"
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, attributes = toMap { root = "/", writeable="yes" }
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}
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]
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, content =
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let VFS = Genode.VFS
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in [ VFS.vfs
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[ VFS.leafAttrs
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"${interface.genode.stack}"
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([ ${settingsMap} ] : Genode.Prelude.Map.Type Text Text)
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]
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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.networking.interfaces;
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in lib.filterAttrs (n: v: v != null) (nics // sockets);
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genode.core.children.ahci_drv = {
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inputs = [ pkgs.genodePackages.ahci_drv ];
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configFile = pkgs.writeText "ahci_drv.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "ahci_drv"
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, resources = Init.Resources::{
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, caps = 400
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, ram = Genode.units.MiB 10
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, constrainPhys = True
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}
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, romReports = [ { local = "ports", route = "ahci_ports" } ]
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, routes =
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[ Init.ServiceRoute.parent "IRQ"
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, Init.ServiceRoute.parent "IO_MEM"
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, Init.ServiceRoute.parent "IO_PORT"
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]
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, config = Init.Config::{
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, policies =
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[ Init.Config.Policy::{
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, service = "Block"
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, label = Init.LabelSelector.prefix "part_block"
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, attributes = toMap { device = "0", writeable = "yes" }
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}
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]
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}
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}
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'';
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};
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genode.core.children.acpi_drv = {
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inputs = [ pkgs.genodePackages.acpi_drv ];
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configFile = pkgs.writeText "acpi_drv.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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let label = λ(_ : Text) → { local = _, route = _ }
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "acpi_drv"
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, resources = Init.Resources::{
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, caps = 400
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, ram = Genode.units.MiB 4
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, constrainPhys = True
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}
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, romReports = [ label "acpi", label "smbios_table" ]
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, routes =
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[ Init.ServiceRoute.parent "IRQ"
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, Init.ServiceRoute.parent "IO_MEM"
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, Init.ServiceRoute.parent "IO_PORT"
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]
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}
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'';
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};
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genode.core.children.platform_drv = {
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inputs = [ pkgs.genodePackages.platform_drv ];
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configFile = let
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policies =
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map (policy: ", ${policy}") config.hardware.genode.platform.policies;
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in pkgs.writeText "platform_drv.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "platform_drv"
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, resources = Init.Resources::{
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, caps = 800
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, ram = Genode.units.MiB 4
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, constrainPhys = True
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}
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, reportRoms = let label = "acpi" in [ { local = label, route = label } ]
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, routes =
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[ Init.ServiceRoute.parent "IRQ"
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, Init.ServiceRoute.parent "IO_MEM"
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, Init.ServiceRoute.parent "IO_PORT"
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]
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, config = Init.Config::{
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, policies = [ ${
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toString policies
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} ] : List Init.Config.Policy.Type
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}
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}
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'';
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};
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genode.core.children.usb_drv = let
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cfg = config.hardware.genode.usb;
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toYesNo = b: if b then "yes" else "no";
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in mkIf cfg.enable {
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inputs = [ pkgs.genodePackages.usb_drv ];
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configFile = builtins.toFile "usb_drv.dhall" ''
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let Genode = env:DHALL_GENODE
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let XML = Genode.Prelude.XML
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "usb_drv"
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, resources = Init.Resources::{ caps = 256, ram = Genode.units.MiB 12 }
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, romReports = let local = "devices" in [ { local, route = local } ]
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, routes = [ Init.ServiceRoute.parent "IO_MEM" ]
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, config =
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let storagePolicy =
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Init.Config.Policy::{
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, service = "Usb"
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, label = Init.LabelSelector.prefix "usb_block_drv"
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, attributes = toMap { class = "8" }
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, diag = Some True
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}
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in Init.Config::{
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, attributes = toMap
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{ ehci = "${toYesNo cfg.ehciSupport}"
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, ohci = "${toYesNo cfg.ohciSupport}"
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, uhci = "${toYesNo cfg.uhciSupport}"
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, xhci = "${toYesNo cfg.xhciSupport}"
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}
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, content =
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[ XML.element
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{ name = "raw"
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, attributes = XML.emptyAttributes
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, content =
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[ XML.leaf
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{ name = "report"
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, attributes = toMap { devices = "yes" }
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}
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, Init.Config.Policy.toXML storagePolicy
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]
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}
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]
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, policies = [ storagePolicy ] : List Init.Config.Policy.Type
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}
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}
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'';
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};
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genode.core.children.usb_block_drv =
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mkIf config.hardware.genode.usb.storage.enable {
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inputs = [ pkgs.genodePackages.usb_block_drv ];
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configFile = builtins.toFile "usb_block_drv.dhall" ''
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let Genode = env:DHALL_GENODE
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let XML = Genode.Prelude.XML
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "usb_block_drv"
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, resources = Init.Resources::{ caps = 256, ram = Genode.units.MiB 4 }
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, config = Init.Config::{
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, attributes = toMap { writeable = "yes" }
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, policies =
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[ Init.Config.Policy::{
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, service = "Block"
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, label = Init.LabelSelector.prefix "part_block"
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}
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]
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}
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}
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'';
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};
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genode.core.children.fb_drv =
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mkIf config.hardware.genode.framebuffer.enable {
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inputs = with pkgs.genodePackages;
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{
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"boot" = [ boot_fb_drv ];
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"vesa" = [ vesa_drv ];
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}.${config.hardware.genode.framebuffer.driver};
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configFile = let
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binary = with pkgs.genodePackages;
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{
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"boot" = "boot_fb_drv";
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"vesa" = "vesa_fb_drv";
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}.${config.hardware.genode.framebuffer.driver};
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in builtins.toFile "fb_drv.dhall" ''
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let Genode = env:DHALL_GENODE
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let XML = Genode.Prelude.XML
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let Init = Genode.Init
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "${binary}"
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, resources = Init.Resources::{ caps = 256, ram = Genode.units.MiB 32 }
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, routes =
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[ Init.ServiceRoute.parent "IO_MEM"
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, Init.ServiceRoute.parent "IO_PORT"
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]
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}
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'';
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};
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virtualisation.useBootLoader = config.genode.boot.storeBackend != "tarball";
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virtualisation.qemu.options = lib.optional config.hardware.genode.usb.enable
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(lib.optional (pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64) "-usb"
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++ lib.optional (pkgs.stdenv.isAarch32 || pkgs.stdenv.isAarch64)
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"-device usb-ehci,id=usb0");
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};
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}
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