muvm: init from krun as 0.4.1

Co-authored-by: Tristan Ross <tristan.ross@midstall.com>
2025-04-23 10:41:42 +02:00
parent 4f4753e6d2
commit 16263fc6e9
2 changed files with 110 additions and 70 deletions
@@ -1,70 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  fetchpatch,
-  rustPlatform,
-  libkrun,
-  makeWrapper,
-  passt,
-  sommelier,
-  mesa,
-  withSommelier ? false,
-}:
-
-rustPlatform.buildRustPackage {
-  pname = "krun";
-  version = "0-unstable-2024-06-18";
-
-  src = fetchFromGitHub {
-    owner = "slp";
-    repo = "krun";
-    rev = "912afa5c6525b7c8f83dffd65ec4b1425b3f7521";
-    hash = "sha256-rDuxv3UakAemDnj4Nsbpqsykts2IcseuQmDwO24L+u8=";
-  };
-
-  patches = [
-    (fetchpatch {
-      url = "https://github.com/slp/krun/pull/39.diff";
-      hash = "sha256-CV69L+VDDLRcWgpgDCAYKLlTU9ytFcHhzNgOibWD8KY=";
-    })
-    (fetchpatch {
-      url = "https://github.com/slp/krun/pull/38.diff";
-      hash = "sha256-cK3iDhh+33H16V65lWUXahjmpSxI1HhiLUmkjfkRB7A=";
-    })
-  ];
-
-  useFetchCargoVendor = true;
-  cargoHash = "sha256-5zrwxyzt9ZEdUNUMnCaFUVpaO53RAabVdtib9LG6Q1s=";
-
-  nativeBuildInputs = [
-    rustPlatform.bindgenHook
-    makeWrapper
-  ];
-
-  buildInputs = [
-    (libkrun.override {
-      withGpu = true;
-      withNet = true;
-    })
-  ];
-
-  # Allow for sommelier to be disabled as it can cause problems.
-  wrapArgs = [
-    "--prefix PATH : ${lib.makeBinPath (lib.optional withSommelier [ sommelier ] ++ [ passt ])}"
-  ];
-
-  postFixup = ''
-    wrapProgram $out/bin/krun $wrapArgs \
-      --set-default OPENGL_DRIVER ${mesa.driverLink}
-  '';
-
-  meta = {
-    description = "Run programs from your system in a microVM";
-    homepage = "https://github.com/slp/krun";
-    license = lib.licenses.mit;
-    maintainers = with lib.maintainers; [ RossComputerGuy ];
-    platforms = libkrun.meta.platforms;
-    mainProgram = "krun";
-  };
-}
@@ -0,0 +1,110 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  rustPlatform,
+  libkrun,
+  passt,
+  dhcpcd,
+  systemd,
+  udev,
+  pkg-config,
+  procps,
+  fex,
+  writeShellApplication,
+  coreutils,
+  makeBinaryWrapper,
+# TODO: Enable again when sommelier is not broken.
+# For now, don't give false impression of sommelier being supported.
+# sommelier,
+# withSommelier ? false,
+}:
+let
+  # TODO: Setup setuid wrappers.
+  # E.g. FEX needs fusermount for rootfs functionality
+  initScript = writeShellApplication {
+    name = "muvm-init";
+    runtimeInputs = [
+      coreutils
+    ];
+    text = ''
+      if [[ ! -f /etc/NIXOS ]]; then exit; fi
+
+      ln -s /run/muvm-host/run/current-system /run/current-system
+      # Only create the symlink if that path exists on the host and is a directory.
+      if [[ -d /run/muvm-host/run/opengl-driver ]]; then ln -s /run/muvm-host/run/opengl-driver /run/opengl-driver; fi
+    '';
+  };
+  binPath = [
+    dhcpcd
+    passt
+    (placeholder "out")
+  ] ++ lib.optionals stdenv.isAarch64 [ fex ];
+  wrapArgs = lib.escapeShellArgs [
+    "--prefix"
+    "PATH"
+    ":"
+    (lib.makeBinPath binPath)
+    "--add-flags"
+    "--execute-pre=${lib.getExe initScript}"
+  ];
+in
+rustPlatform.buildRustPackage rec {
+  pname = "muvm";
+  version = "0.4.1";
+
+  src = fetchFromGitHub {
+    owner = "AsahiLinux";
+    repo = pname;
+    rev = "muvm-${version}";
+    hash = "sha256-1XPhVEj7iqTxdWyYwNk6cbb9VRGuhpvvowYDPJb1cWU=";
+  };
+
+  useFetchCargoVendor = true;
+  cargoHash = "sha256-fkvdS0c1Ib8Kto44ou06leXy731cpMHXevyFR5RROt4=";
+
+  postPatch =
+    ''
+      substituteInPlace crates/muvm/src/guest/bin/muvm-guest.rs \
+        --replace-fail "/usr/lib/systemd/systemd-udevd" "${systemd}/lib/systemd/systemd-udevd"
+
+      substituteInPlace crates/muvm/src/monitor.rs \
+        --replace-fail "/sbin/sysctl" "${lib.getExe' procps "sysctl"}"
+    ''
+    # Only patch FEX path if we're aarch64, otherwise we don't want the derivation to pull in FEX in any way
+    + lib.optionalString stdenv.isAarch64 ''
+      substituteInPlace crates/muvm/src/guest/mount.rs \
+        --replace-fail "/usr/share/fex-emu" "${fex}/share/fex-emu"
+    '';
+
+  nativeBuildInputs = [
+    rustPlatform.bindgenHook
+    makeBinaryWrapper
+    pkg-config
+  ];
+
+  buildInputs = [
+    (libkrun.override {
+      withBlk = true;
+      withGpu = true;
+      withNet = true;
+    })
+    udev
+  ];
+
+  postFixup = ''
+    wrapProgram $out/bin/muvm ${wrapArgs}
+  '';
+
+  meta = {
+    description = "Run programs from your system in a microVM";
+    homepage = "https://github.com/AsahiLinux/muvm";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [
+      RossComputerGuy
+      nrabulinski
+    ];
+    inherit (libkrun.meta) platforms;
+    mainProgram = "muvm";
+  };
+}