Boot from USB
This commit is contained in:
parent
2c96655dd2
commit
6d5a9e8886
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@ -25,14 +25,22 @@ in {
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prefix = mkOption {
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type = types.str;
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example = "hw-pc-";
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description = "String prefix signifying the Genode core in use.";
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};
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supportedSystems = mkOption {
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type = types.listOf types.str;
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example = [ "i686-genode" "x86_64-genode" ];
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description = "Hardware supported by this core.";
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};
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basePackages = mkOption { type = types.listOf types.package; };
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basePackages = mkOption {
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type = types.listOf types.package;
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description = ''
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List of packages to make availabe before the Nix store is ready.
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These are baked into <option>config.genode.core.image</option>.
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'';
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};
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children = mkOption {
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type = with types;
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@ -57,17 +65,6 @@ in {
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boot = {
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kernel = mkOption {
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type = types.path;
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default = "${pkgs.genodePackages.bender}/bender";
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};
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initrd = mkOption {
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type = types.str;
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default = "${pkgs.genodePackages.bender}/bender";
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description = "Path to an image or a command-line arguments";
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};
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configFile = mkOption {
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type = types.path;
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description = ''
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@ -84,9 +81,22 @@ in {
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romModules = mkOption {
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type = types.attrsOf types.path;
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default = { };
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description = "Attr set of initial ROM modules";
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};
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storeFsUuid = mkOption {
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type = types.str;
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default = import ./store-fs-uuid;
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description = "Custom partition type of the nix-store file-system.";
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};
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storePartUuid = mkOption {
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type = types.str;
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default = import ./partition-type;
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description = "Custom partition type of the nix-store file-system.";
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};
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storeBackend = mkOption {
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type = types.enum [ "tarball" "usb" ]; # "parent"?
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default = "tarball";
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@ -119,7 +129,6 @@ in {
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storePaths = mkOption {
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type = with types; listOf package;
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example = literalExample "[ pkgs.genodePackages.vfs_lwp ]";
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description = ''
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Derivations to be included in the Nix store in the generated boot image.
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'';
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@ -148,20 +157,17 @@ in {
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};
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mergeManifests = inputs:
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localPackages.writeTextFile {
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name = "manifest.dhall";
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text = with builtins;
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let
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f = head: input:
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if hasAttr "manifest" input then
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''
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${head}, { mapKey = "${
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lib.getName input
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}", mapValue = ${input.manifest} }''
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else
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abort "${input.pname} does not have a manifest";
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in (foldl' f "[" inputs) + "]";
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};
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with builtins;
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let
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f = head: input:
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if hasAttr "manifest" input then
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''
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${head}, { mapKey = "${
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lib.getName input
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}", mapValue = ${input.manifest} }''
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else
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abort "${input.pname} does not have a manifest";
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in (foldl' f "[" inputs) + "]";
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romDirectories = filterAttrs (_: value: value != null) (mapAttrs
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(name: value:
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@ -181,51 +187,85 @@ in {
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message = "invalid Genode core for this system";
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}];
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genode.core.children.store_fs.configFile = let
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genode.core.basePackages =
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lib.optional (config.genode.boot.storeBackend == "usb")
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pkgs.genodePackages.part_block;
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storeVfsConfig = {
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tarball = ''
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VFS.vfs [ VFS.leafAttrs "tar" (toMap { name = "${config.system.build.tarball.fileName}.tar" }) ]
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'';
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usb = ''
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VFS.vfs [ VFS.leafAttrs "rump" (toMap { fs = "ext2fs", ram="12M" }) ]
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'';
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}.${config.genode.boot.storeBackend};
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genode.core.children =
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# Component to steer the store_fs to a specific partition
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(if config.genode.boot.storeBackend == "usb" then {
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part_block.configFile = builtins.toFile "part_block.dhall" ''
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let Genode = env:DHALL_GENODE
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storeResources = {
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tarball = "Init.Resources.default";
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usb = "Init.Resources::{ caps = 256, ram = Genode.units.MiB 16 }";
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}.${config.genode.boot.storeBackend};
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let Init = Genode.Init
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in builtins.toFile "store_fs.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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let VFS = Genode.VFS
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "vfs"
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, resources = ${storeResources}
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, config = Init.Config::{
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, content = [ ${storeVfsConfig} ]
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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 "nix-store"
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, attributes = toMap { root = "/nix/store" }
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "part_block"
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, resources = Init.Resources::{ ram = Genode.units.MiB 8 }
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, config = Init.Config::{
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, attributes = toMap { ignore_mbr = "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 "store_fs"
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, attributes = toMap
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{ partition = "1"
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, writeable = "yes"
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, TODO = "select by partition UUID"
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}
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}
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]
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}
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, Init.Config.Policy::{
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, service = "File_system"
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, label = Init.LabelSelector.prefix "store_rom"
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, attributes = toMap { root = "/" }
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}
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'';
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} else
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{ }) // {
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store_fs.configFile = let
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storeVfsConfig = {
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tarball = ''
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VFS.vfs [ VFS.leafAttrs "tar" (toMap { name = "${config.system.build.tarball.fileName}.tar" }) ]
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'';
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usb = ''
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VFS.vfs [ VFS.leafAttrs "rump" (toMap { fs = "ext2fs", ram="12M" }) ]
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'';
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}.${config.genode.boot.storeBackend};
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storeResources = {
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tarball = "Init.Resources.default";
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usb = "Init.Resources::{ caps = 256, ram = Genode.units.MiB 16 }";
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}.${config.genode.boot.storeBackend};
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in builtins.toFile "store_fs.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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let VFS = Genode.VFS
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in Init.Child.flat
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Init.Child.Attributes::{
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, binary = "vfs"
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, resources = ${storeResources}
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, config = Init.Config::{
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, content = [ ${storeVfsConfig} ]
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, policies =
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[ Init.Config.Policy::{
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, service = "File_system"
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, label = Init.LabelSelector.suffix "nix-store"
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, attributes = toMap { root = "/nix/store" }
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}
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, Init.Config.Policy::{
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, service = "File_system"
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, label = Init.LabelSelector.prefix "store_rom"
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, attributes = toMap { root = "/" }
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}
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]
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}
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}
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]
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}
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, provides = [ "File_system" ]
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}
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'';
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'';
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};
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genode.boot.configFile = let
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tarball =
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@ -236,9 +276,21 @@ in {
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usb = [ pkgs.genodePackages.rump ];
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}.${config.genode.boot.storeBackend};
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manifest = mergeManifests (map addManifest (with pkgs.genodePackages;
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config.genode.core.basePackages ++ storeBackendInputs
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++ [ init cached_fs_rom jitter_sponge report_rom vfs ]));
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coreInputs = with builtins;
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concatMap (getAttr "inputs") (attrValues config.genode.core.children);
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manifest =
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# Manifests are Dhall metadata to be attached to every
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# package to be used for dynamically buildings enviroments
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# using Dhall expressions. Probably not worth pursuing.
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pkgs.writeText "manifest.dhall" (mergeManifests (map addManifest
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(with pkgs.genodePackages;
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config.genode.core.basePackages ++ storeBackendInputs
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++ [ init cached_fs_rom jitter_sponge report_rom vfs ]
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++ coreInputs)) + ''# [ { mapKey = "romModules", mapValue = [ ''
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+ (toString
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(mapAttrsToList (k: v: '', { mapKey = "${k}", mapValue = "${v}" }'')
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config.genode.boot.romModules)) + " ] } ]");
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storeRomPolicies = mapAttrsToList
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(name: value: '', { mapKey = "${name}", mapValue = "${value}" }'')
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@ -253,7 +305,7 @@ in {
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Genode.Init.LabelSelector.Type.Partial
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{ prefix = Some "nixos -> ${name}", suffix = Some "${suffix}" }
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}
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, route = Genode.Init.Route.parent (Some "${suffix}")
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, route = Genode.Init.Route.parentLabel "${suffix}"
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}
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'') value.coreROMs) config.genode.init.children));
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@ -282,8 +334,8 @@ in {
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EOF
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'';
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genode.boot.storePaths = [ config.genode.init.configFile ]
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++ (builtins.attrValues romDirectories);
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genode.boot.storePaths = with builtins;
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[ config.genode.init.configFile ] ++ (attrValues romDirectories);
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# Create the tarball of the store to live in core ROM
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system.build.tarball =
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@ -316,17 +368,21 @@ in {
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'';
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system.build.bootDriveImage = let
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storeFsImage = pkgs.callPackage ./lib/make-ext2-fs.nix {
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inherit (config.genode.boot) storePaths;
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inherit (config.system.build) qemu;
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volumeLabel = "NIXOS_GENODE";
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espImage = import ./lib/make-esp-fs.nix { inherit config pkgs; };
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storeFsImage =
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pkgs.callPackage ./lib/make-ext2-fs.nix { inherit config pkgs; };
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bootDriveImage = import ./lib/make-bootable-image.nix {
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inherit config pkgs espImage storeFsImage;
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};
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in storeFsImage;
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in bootDriveImage;
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# virtualisation.useEFIBoot = config.genode.boot.storeBackend == "usb";
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virtualisation.qemu.options =
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lib.optionals (config.genode.boot.storeBackend == "usb") [
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"-usb"
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"-bios ${pkgs.buildPackages.OVMF.fd}/FV/OVMF.fd"
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"-drive id=usbdisk,file=${config.system.build.bootDriveImage},if=none,readonly"
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"-usb"
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"-device usb-storage,drive=usbdisk"
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];
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@ -0,0 +1,69 @@
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# Builds a compressed EFI System Partition image
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{ config, pkgs, espImage, storeFsImage }:
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pkgs.stdenv.mkDerivation {
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name = "boot.qcow2";
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nativeBuildInputs = with pkgs.buildPackages; [
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config.system.build.qemu
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utillinux
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zstd
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];
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buildCommand = ''
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img=./temp.raw
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blockSize=512
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sectorSize=$(( $blockSize * 1 ))
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imgBytes=0
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espSectorOffset=2048
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esbByteOffset=$(( $espSectorOffset * $sectorSize ))
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# Pad the front of the image
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echo "Pad front of image with " $esbByteOffset " bytes"
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truncate --size=$esbByteOffset $img
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# Concatentenate the ESP
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echo "Concatenate ESP ${espImage}"
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zstdcat ${espImage} >> $img
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imgBytes=$(stat --format=%s $img)
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echo "Image is $(( $imgBytes >> 20 )) MiB with ESP partition"
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nixSectorOffset=$(( ($imgBytes + $sectorSize - 1) / $sectorSize ))
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nixByteOffset=$(( $nixSectorOffset * $sectorSize ))
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# Pad the ESP
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echo "Pad end of ESP with " $(( $nixByteOffset - $imgBytes )) " bytes"
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truncate --size=$nixByteOffset $img
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# Concatenate the nix partition
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echo "Concatenate store ${storeFsImage}"
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zstdcat ${storeFsImage} >> $img
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imgBytes=$(stat --format=%s $img)
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echo "Image is $(( $imgBytes >> 20 )) MiB with store partition"
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endSectorOffset=$(( ($(stat --format=%s $img) + $sectorSize + 1) / $sectorSize ))
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endByteOffset=$(( $endSectorOffset * $sectorSize ))
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# Pad the end of the image
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echo "Pad end of store with $(( $endByteOffset - $imgBytes )) bytes"
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truncate --size=$endByteOffset $img
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imgBytes=$(stat --format=%s $img)
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echo "Image is $(( $imgBytes >> 20 )) MiB with final padding"
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efiUuid=C12A7328-F81F-11D2-BA4B-00A0C93EC93B
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# Create the partition table
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sfdisk $img <<EOF
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label: gpt
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label-id: 44444444-4444-4444-8888-888888888888
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start=$nixSectorOffset, type=${config.genode.boot.storePartUuid}
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start=$espSectorOffset, type=$efiUuid
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EOF
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qemu-img convert $img $out
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'';
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}
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@ -0,0 +1,72 @@
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# Builds a compressed EFI System Partition image
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{ config, pkgs }:
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let
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grub' = pkgs.buildPackages.grub2_efi;
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# Name used by UEFI for architectures.
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targetArch = if pkgs.stdenv.isi686 || config.boot.loader.grub.forcei686 then
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"ia32"
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else if pkgs.stdenv.isx86_64 then
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"x64"
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else if pkgs.stdenv.isAarch64 then
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"aa64"
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else
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throw "Unsupported architecture";
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in pkgs.stdenv.mkDerivation {
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name = "esp.img.zst";
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nativeBuildInputs = with pkgs.buildPackages; [ grub' dosfstools mtools zstd ];
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MODULES = [
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"configfile"
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"efi_gop"
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"efi_uga"
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"ext2"
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"gzio"
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"multiboot"
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"multiboot2"
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"normal"
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"part_gpt"
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"search_fs_uuid"
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];
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buildCommand = ''
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img=tmp.raw
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bootdir=EFI/boot/
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mkdir -p $bootdir
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cat <<EOF > embedded.cfg
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insmod configfile
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insmod efi_gop
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insmod efi_uga
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insmod ext2
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insmod normal
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insmod part_gpt
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insmod search_fs_uuid
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search.fs_uuid ${config.genode.boot.storeFsUuid} root
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set prefix=($root)/boot/grub
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configfile /boot/grub/grub.cfg
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EOF
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grub-script-check embedded.cfg
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${grub'}/bin/grub-mkimage \
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--config=embedded.cfg \
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--output=$bootdir/boot${targetArch}.efi \
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--prefix=/boot/grub \
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--format=${grub'.grubTarget} \
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$MODULES
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# Make the ESP image twice as large as necessary
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imageBytes=$(du --summarize --block-size=4096 --total $bootdir | tail -1 | awk '{ print int($1 * 8192) }')
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truncate --size=$imageBytes $img
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mkfs.vfat -n EFIBOOT --invariant $img
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mcopy -sv -i $img EFI ::
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fsck.vfat -nv $img
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zstd --verbose --no-progress ./$img -o $out
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'';
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}
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@ -1,83 +1,77 @@
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# Builds an ext2 image containing a populated /nix/store with the closure
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# of store paths passed in the storePaths parameter, in addition to the
|
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# contents of a directory that can be populated with commands. The
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# generated image is sized to only fit its contents, with the expectation
|
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# that a script resizes the filesystem at boot time.
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{ pkgs
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, lib
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# List of derivations to be included
|
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, storePaths
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# Shell commands to populate the ./files directory.
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# All files in that directory are copied to the root of the FS.
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, populateImageCommands ? ""
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, volumeLabel
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, uuid ? "44444444-4444-4444-8888-888888888888"
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, e2fsprogs
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, libfaketime
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, perl
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, fakeroot
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, qemu
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}:
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{ config, pkgs }:
|
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let
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sdClosureInfo = pkgs.buildPackages.closureInfo { rootPaths = storePaths; };
|
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in
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pkgs.stdenv.mkDerivation {
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name = "ext2-fs.qcow2";
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grub' = pkgs.buildPackages.grub2_efi;
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sdClosureInfo = pkgs.buildPackages.closureInfo {
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rootPaths = config.genode.boot.storePaths;
|
||||
};
|
||||
in pkgs.stdenv.mkDerivation {
|
||||
name = "ext2-fs.img.zstd";
|
||||
|
||||
nativeBuildInputs = [ e2fsprogs.bin libfaketime perl fakeroot qemu ];
|
||||
nativeBuildInputs = with pkgs.buildPackages; [
|
||||
e2fsprogs.bin
|
||||
grub'
|
||||
libfaketime
|
||||
perl
|
||||
fakeroot
|
||||
zstd
|
||||
];
|
||||
|
||||
buildCommand =
|
||||
''
|
||||
img=temp.raw
|
||||
(
|
||||
mkdir -p ./files
|
||||
${populateImageCommands}
|
||||
)
|
||||
buildCommand = ''
|
||||
img=temp.raw
|
||||
|
||||
echo "Preparing store paths for image..."
|
||||
# Create nix/store before copying path
|
||||
mkdir -p ./rootImage/boot/grub ./rootImage/nix/store
|
||||
|
||||
# Create nix/store before copying path
|
||||
mkdir -p ./rootImage/nix/store
|
||||
cat <<EOF > ./rootImage/boot/grub/grub.cfg
|
||||
set timeout=3
|
||||
set default=0
|
||||
set gfxpayload=auto
|
||||
|
||||
xargs -I % cp -a --reflink=auto % -t ./rootImage/nix/store/ < ${sdClosureInfo}/store-paths
|
||||
(
|
||||
GLOBIGNORE=".:.."
|
||||
shopt -u dotglob
|
||||
${config.boot.loader.grub.extraEntries}
|
||||
EOF
|
||||
|
||||
for f in ./files/*; do
|
||||
cp -a --reflink=auto -t ./rootImage/ "$f"
|
||||
done
|
||||
)
|
||||
grub-script-check ./rootImage/boot/grub/grub.cfg
|
||||
|
||||
# Also include a manifest of the closures in a format suitable for nix-store --load-db
|
||||
cp ${sdClosureInfo}/registration ./rootImage/nix-path-registration
|
||||
xargs -I % cp -a --reflink=auto % -t ./rootImage/nix/store/ < ${sdClosureInfo}/store-paths
|
||||
(
|
||||
GLOBIGNORE=".:.."
|
||||
shopt -u dotglob
|
||||
|
||||
# Make a crude approximation of the size of the target image.
|
||||
# If the script starts failing, increase the fudge factors here.
|
||||
numInodes=$(find ./rootImage | wc -l)
|
||||
numDataBlocks=$(du -s -c -B 4096 --apparent-size ./rootImage | tail -1 | awk '{ print int($1 * 1.10) }')
|
||||
bytes=$((2 * 4096 * $numInodes + 4096 * $numDataBlocks))
|
||||
echo "Creating an EXT2 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks)"
|
||||
for f in ./files/*; do
|
||||
cp -a --reflink=auto -t ./rootImage/ "$f"
|
||||
done
|
||||
)
|
||||
|
||||
truncate -s $bytes $img
|
||||
# Also include a manifest of the closures in a format suitable for nix-store --load-db
|
||||
cp ${sdClosureInfo}/registration ./rootImage/nix-path-registration
|
||||
|
||||
faketime -f "1970-01-01 00:00:01" fakeroot mkfs.ext2 -L ${volumeLabel} -U ${uuid} -d ./rootImage $img
|
||||
# Make a crude approximation of the size of the target image.
|
||||
# If the script starts failing, increase the fudge factors here.
|
||||
numInodes=$(find ./rootImage | wc -l)
|
||||
numDataBlocks=$(du -s -c -B 4096 --apparent-size ./rootImage | tail -1 | awk '{ print int($1 * 1.10) }')
|
||||
bytes=$((2 * 4096 * $numInodes + 4096 * $numDataBlocks))
|
||||
echo "Creating an EXT2 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks)"
|
||||
|
||||
export EXT2FS_NO_MTAB_OK=yes
|
||||
# I have ended up with corrupted images sometimes, I suspect that happens when the build machine's disk gets full during the build.
|
||||
if ! fsck.ext2 -n -f $img; then
|
||||
echo "--- Fsck failed for EXT2 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks) ---"
|
||||
cat errorlog
|
||||
return 1
|
||||
fi
|
||||
truncate --size=$bytes $img
|
||||
|
||||
echo "Resizing to minimum allowed size"
|
||||
resize2fs -M $img
|
||||
faketime -f "1970-01-01 00:00:01" fakeroot mkfs.ext2 -L NIXOS_GENODE -U ${config.genode.boot.storeFsUuid} -d ./rootImage $img
|
||||
|
||||
# And a final fsck, because of the previous truncating.
|
||||
fsck.ext2 -n -f $img
|
||||
export EXT2FS_NO_MTAB_OK=yes
|
||||
# I have ended up with corrupted images sometimes, I suspect that happens when the build machine's disk gets full during the build.
|
||||
if ! fsck.ext2 -n -f $img; then
|
||||
echo "--- Fsck failed for EXT2 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks) ---"
|
||||
cat errorlog
|
||||
return 1
|
||||
fi
|
||||
|
||||
qemu-img convert $img $out
|
||||
'';
|
||||
echo "Resizing to minimum allowed size"
|
||||
resize2fs -M $img
|
||||
|
||||
# And a final fsck, because of the previous truncating.
|
||||
fsck.ext2 -n -f $img
|
||||
|
||||
# Compress to store
|
||||
zstd --verbose --no-progress ./$img -o $out
|
||||
'';
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,6 +7,17 @@ let
|
|||
inherit (config.nixpkgs) system localSystem crossSystem;
|
||||
inherit pkgs;
|
||||
};
|
||||
|
||||
bootDir = pkgs.runCommand "${config.system.name}-bootdir" { } ''
|
||||
mkdir $out
|
||||
gz() {
|
||||
gzip --keep --to-stdout "$1" > "$2"
|
||||
}
|
||||
gz ${pkgs.genodePackages.genodeSources}/tool/boot/bender $out/bender.gz
|
||||
gz ${pkgs.genodePackages.NOVA}/hypervisor-x86_64 $out/hypervisor.gz
|
||||
gz ${config.genode.boot.image}/image.elf $out/image.elf.gz
|
||||
'';
|
||||
|
||||
in {
|
||||
genode.core = {
|
||||
prefix = "nova-";
|
||||
|
|
@ -15,13 +26,27 @@ in {
|
|||
};
|
||||
|
||||
genode.boot = {
|
||||
|
||||
initrd =
|
||||
"'${pkgs.genodePackages.NOVA}/hypervisor-x86_64 arg=iommu novpid serial,${config.genode.boot.image}/image.elf'";
|
||||
|
||||
image =
|
||||
utils.novaImage config.system.name { } config.genode.boot.configFile;
|
||||
|
||||
};
|
||||
|
||||
genode.boot.storePaths =
|
||||
lib.optional (config.genode.boot.storeBackend == "usb") bootDir;
|
||||
|
||||
virtualisation.qemu.options =
|
||||
lib.optionals (!config.virtualisation.useBootLoader) [
|
||||
"-kernel '${pkgs.genodePackages.bender}/share/bender/bender'"
|
||||
"-initrd '${pkgs.genodePackages.NOVA}/hypervisor-x86_64 arg=iommu logmem novpid serial,${config.genode.boot.image}/image.elf'"
|
||||
];
|
||||
|
||||
boot.loader.grub.extraEntries = ''
|
||||
menuentry 'Genode on NOVA' {
|
||||
insmod multiboot2
|
||||
insmod gzio
|
||||
multiboot2 ${bootDir}/bender.gz serial_fallback
|
||||
module2 ${bootDir}/hypervisor.gz hypervisor iommu logmem novga novpid serial
|
||||
module2 ${bootDir}/image.elf.gz image.elf
|
||||
}
|
||||
'';
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
"24b69406-18a1-428d-908e-d21a1437122c"
|
||||
|
|
@ -83,9 +83,9 @@ let
|
|||
imap1 (idx: drive: drive // { device = driveDeviceName idx; });
|
||||
|
||||
efiPrefix = if (pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64) then
|
||||
"${pkgs.OVMF.fd}/FV/OVMF"
|
||||
"${pkgs.buildPackages.OVMF.fd}/FV/OVMF"
|
||||
else if pkgs.stdenv.isAarch64 then
|
||||
"${pkgs.OVMF.fd}/FV/AAVMF"
|
||||
"${pkgs.buildPackages.OVMF.fd}/FV/AAVMF"
|
||||
else
|
||||
throw "No EFI firmware available for platform";
|
||||
efiFirmware = "${efiPrefix}_CODE.fd";
|
||||
|
|
@ -516,10 +516,6 @@ in {
|
|||
"-device usb-kbd"
|
||||
"-device usb-tablet"
|
||||
])
|
||||
(mkIf (!cfg.useBootLoader) [
|
||||
"-kernel ${config.genode.boot.kernel}"
|
||||
"-initrd ${config.genode.boot.initrd}"
|
||||
])
|
||||
(mkIf cfg.useEFIBoot [
|
||||
"-drive if=pflash,format=raw,unit=0,readonly,file=${efiFirmware}"
|
||||
"-drive if=pflash,format=raw,unit=1,file=$NIX_EFI_VARS"
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
"9668f8dd-d9a0-4398-a55a-0d499d5e5cbb"
|
||||
Loading…
Reference in New Issue