diff --git a/nixos/tests/hibernate.nix b/nixos/tests/hibernate.nix index 8251c6e7ef85..ae506c8542fe 100644 --- a/nixos/tests/hibernate.nix +++ b/nixos/tests/hibernate.nix @@ -1,44 +1,120 @@ # Test whether hibernation from partition works. -import ./make-test-python.nix (pkgs: { +{ system ? builtins.currentSystem +, config ? {} +, pkgs ? import ../.. { inherit system config; } +}: + +with import ../lib/testing-python.nix { inherit system pkgs; }; + +let + # System configuration of the installed system, which is used for the actual + # hibernate testing. + installedConfig = with pkgs.lib; { + imports = [ + ../modules/testing/test-instrumentation.nix + ../modules/profiles/qemu-guest.nix + ../modules/profiles/minimal.nix + ]; + + hardware.enableAllFirmware = mkForce false; + documentation.nixos.enable = false; + boot.loader.grub.device = "/dev/vda"; + + systemd.services.backdoor.conflicts = [ "sleep.target" ]; + + powerManagement.resumeCommands = "systemctl --no-block restart backdoor.service"; + + fileSystems = { + "/".device = "/dev/vda2"; + }; + swapDevices = mkOverride 0 [ { device = "/dev/vda1"; } ]; + }; + installedSystem = (import ../lib/eval-config.nix { + inherit system; + modules = [ installedConfig ]; + }).config.system.build.toplevel; +in makeTest { name = "hibernate"; nodes = { + # System configuration used for installing the installedConfig from above. machine = { config, lib, pkgs, ... }: with lib; { - virtualisation.emptyDiskImages = [ config.virtualisation.memorySize ]; + imports = [ + ../modules/profiles/installation-device.nix + ../modules/profiles/base.nix + ]; - systemd.services.backdoor.conflicts = [ "sleep.target" ]; + nix.binaryCaches = mkForce [ ]; + nix.extraOptions = '' + hashed-mirrors = + connect-timeout = 1 + ''; - swapDevices = mkOverride 0 [ { device = "/dev/vdb"; } ]; - - networking.firewall.allowedTCPPorts = [ 4444 ]; - - systemd.services.listener.serviceConfig.ExecStart = "${pkgs.netcat}/bin/nc -l 4444 -k"; - }; - - probe = { pkgs, ...}: { - environment.systemPackages = [ pkgs.netcat ]; + virtualisation.diskSize = 8 * 1024; + virtualisation.emptyDiskImages = [ + # Small root disk for installer + 512 + ]; + virtualisation.bootDevice = "/dev/vdb"; }; }; # 9P doesn't support reconnection to virtio transport after a hibernation. # Therefore, machine just hangs on any Nix store access. - # To work around it we run a daemon which listens to a TCP connection and - # try to connect to it as a test. + # To avoid this, we install NixOS onto a temporary disk with everything we need + # included into the store. testScript = '' + def create_named_machine(name): + return create_machine( + { + "qemuFlags": "-cpu max ${ + if system == "x86_64-linux" then "-m 1024" + else "-m 768 -enable-kvm -machine virt,gic-version=host"}", + "hdaInterface": "virtio", + "hda": "vm-state-machine/machine.qcow2", + "name": name, + } + ) + + + # Install NixOS machine.start() - machine.wait_for_unit("multi-user.target") - machine.succeed("mkswap /dev/vdb") - machine.succeed("swapon -a") - machine.start_job("listener") - machine.wait_for_open_port(4444) - machine.succeed("systemctl hibernate &") - machine.wait_for_shutdown() - probe.wait_for_unit("multi-user.target") - machine.start() - probe.wait_until_succeeds("echo test | nc machine 4444 -N") + machine.succeed( + # Partition /dev/vda + "flock /dev/vda parted --script /dev/vda -- mklabel msdos" + + " mkpart primary linux-swap 1M 1024M" + + " mkpart primary ext2 1024M -1s", + "udevadm settle", + "mkfs.ext3 -L nixos /dev/vda2", + "mount LABEL=nixos /mnt", + "mkswap /dev/vda1 -L swap", + # Install onto /mnt + "nix-store --load-db < ${pkgs.closureInfo {rootPaths = [installedSystem];}}/registration", + "nixos-install --root /mnt --system ${installedSystem} --no-root-passwd", + ) + machine.shutdown() + + # Start up + hibernate = create_named_machine("hibernate") + + # Drop in file that checks if we un-hibernated properly (and not booted fresh) + hibernate.succeed( + "mkdir /run/test", + "mount -t ramfs -o size=1m ramfs /run/test", + "echo not persisted to disk > /run/test/suspended", + ) + + # Hibernate machine + hibernate.succeed("systemctl hibernate &") + hibernate.wait_for_shutdown() + + # Restore machine from hibernation, validate our ramfs file is there. + resume = create_named_machine("resume") + resume.start() + resume.succeed("grep 'not persisted to disk' /run/test/suspended") ''; -}) +}