Address PR comments

Address Mehrdad's PR comments

More PR comments

Documentation tweaks

Add dialout group to user

apps/microtvm/reference-vm/arduino/README.md

@@ -17,11 +17,28 @@
 
 # microTVM Arduino Reference Virtual Machine
 
-This directory contains setup files for Arduino virtual machine used for testing microTVM platforms
-that are supported by [Arduino](https://www.arduino.cc/).
+This directory contains setup files for Arduino virtual machine used for testing
+microTVM platforms that are supported by [Arduino](https://www.arduino.cc/).
 
 ## VM Information for Developers
 Arduino VM is published under [tlcpack](https://app.vagrantup.com/tlcpack).
 Here is a list of different release versions and their tools.
 
 (none currently)
+
+## Supported Arduino Boards
+This RVM has been tested and is known to work with these boards:
+- Adafruit Metro M4
+- Adafruit Pybadge
+- Arduino Due
+- Arduino Nano 33 BLE
+- Feather S2
+- Sony Spresense
+- Wio Terminal
+
+However, the RVM *should* work with any Arduino with sufficient memory, provided
+its core is installed in `base-box/base_box_provision.sh`.
+
+Note that this RVM does not work with the Teensy boards, even though they are
+supported by microTVM. This is because arduino-cli does not support Teensy
+boards (https://github.com/arduino/arduino-cli/issues/700)/).

apps/microtvm/reference-vm/arduino/Vagrantfile

@@ -49,7 +49,7 @@ Vagrant.configure("2") do |config|
   config.vm.provision "shell", path: "provision_setup.sh", env: {"TVM_HOME": dirs_to_mount[0]}, privileged: false
 
   # Enable USB Controller on VirtualBox
-  vm_name = "microtvm-#{Time.now.tv_sec}"
+  vm_name = "microtvm-arduino-#{Time.now.tv_sec}"
   config.vm.provider "virtualbox" do |vb, overrides|
     vb.name = vm_name
     vb.cpus = num_cores
@@ -63,27 +63,4 @@ Vagrant.configure("2") do |config|
     end
   end
 
-  config.vm.provider "parallels" do |prl, overrides|
-    prl.name = vm_name
-    prl.cpus = num_cores
-    prl.memory = ram_bytes
-    prl.update_guest_tools = true
-    prl.customize ["set", :id, "--support-usb30", "on"]
-    dirs_to_mount.each do |d|
-      overrides.vm.synced_folder d.to_s, d.to_s, mount_options: ["share", "nosuid", "host_inodes"]
-    end
-  end
-
-  config.vm.provider "vmware_desktop" do |vm, overrides|
-    vm.cpus = num_cores
-    vm.memory = ram_bytes
-    vm.vmx["usb_xhci.present"] = "TRUE"
-    vm.vmx["usb.present"] = "TRUE"
-    vm.vmx["ehci.present"] = "TRUE"
-    dirs_to_mount.each do |d|
-      overrides.vm.synced_folder d.to_s, d.to_s
-    end
-    vm.gui = true
-  end
-
 end

apps/microtvm/reference-vm/arduino/base-box/base_box_provision.sh

@@ -34,6 +34,9 @@ sudo apt-get install -y ca-certificates
 export PATH="/home/vagrant/bin:$PATH"
 wget -O - https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | sh -s
 
+# Arduino (the CLI and GUI) require the dialout permission for uploading
+sudo usermod -a -G dialout $USER
+
 # ubuntu_init_arduino.sh only installs a few officially
 # supported architectures, so we don't use it here
 
@@ -58,8 +61,15 @@ arduino-cli core install SPRESENSE:spresense --additional-urls $SPRESENSE_BOARDS
 # fixes the bug in the main core release SDK - the subcore release SDK and both
 # the main and subcore debug SDKs will continue to fail until an official fix is made.
 # https://github.com/sonydevworld/spresense/issues/200
-SPRESENSE_BUGFIX_PATH=~/.arduino15/packages/SPRESENSE/tools/spresense-sdk/2.2.1/spresense/release/nuttx/include/sys/types.h
-sed -i 's/#ifndef CONFIG_WCHAR_BUILTIN/#if !defined(__cplusplus)/g' $SPRESENSE_BUGFIX_PATH
+SPRESENSE_NUTTX_BUGFIX_PATH=~/.arduino15/packages/SPRESENSE/tools/spresense-sdk/2.2.1/spresense/release/nuttx/include/sys/types.h
+sed -i 's/#ifndef CONFIG_WCHAR_BUILTIN/#if !defined(__cplusplus)/g' $SPRESENSE_NUTTX_BUGFIX_PATH
+
+# There's also a SECOND bug in the Spresense Arduino bindings, relating to how the
+# flash_writer path is templated on Linux. This change is only needed to upload code
+# (not compile) to the Spresense.
+# https://github.com/sonydevworld/spresense-arduino-compatible/issues/127
+SPRESENSE_FLASH_WRITER_BUGFIX_PATH=~/.arduino15/packages/SPRESENSE/hardware/spresense/2.2.1/platform.txt
+sed -i 's/tools.spresense-tools.cmd.path.linux={path}\/flash_writer\/{runtime.os}\/flash_writer/tools.spresense-tools.cmd.path.linux={path}\/flash_writer\/linux\/flash_writer/g' $SPRESENSE_FLASH_WRITER_BUGFIX_PATH
 
 # Cleanup
 rm -f *.sh

apps/microtvm/reference-vm/arduino/base-box/base_box_test.sh

@@ -33,6 +33,7 @@ microtvm_platform=$1
 pytest tests/micro/arduino/test_arduino_workflow.py --microtvm-platforms=${microtvm_platform}
 
 if [ $microtvm_platform == "nano33ble" ]; then
+    # https://github.com/apache/tvm/issues/8730
     echo "NOTE: skipped test_arduino_rpc_server.py on $microtvm_platform -- known failure"
 else
     pytest tests/micro/arduino/test_arduino_rpc_server.py --microtvm-platforms=${microtvm_platform}

apps/microtvm/reference-vm/base-box-tool.py

@@ -75,10 +75,7 @@
 # in [platform]/base-box/base_box_provision.sh
 EXTRA_SCRIPTS = {
     "arduino": (),
-    "zephyr": (
-        "docker/install/ubuntu_init_zephyr_project.sh",
-        "docker/install/ubuntu_install_qemu.sh",
-    ),
+    "zephyr": ("docker/install/ubuntu_init_zephyr_project.sh",),
 }
 
 PACKER_FILE_NAME = "packer.json"
@@ -392,7 +389,6 @@ def test_command(args):
         microtvm_test_platform["microtvm_platform"] = args.microtvm_platform
 
     providers = args.provider
-    print(providers)
     provider_passed = {p: False for p in providers}
 
     release_test_dir = os.path.join(THIS_DIR, "release-test")
@@ -479,7 +475,7 @@ def parse_args():
 
     # "test" has special options for different platforms, and "build", "release" might
     # in the future, so we'll add the platform argument to each one individually.
-    platform_help_str = "Electronics platform to use (e.g. Arduino, Zephyr)"
+    platform_help_str = "Platform to use (e.g. Arduino, Zephyr)"
 
     # Options for build subcommand
     parser_build = subparsers.add_parser("build", help="Build a base box.")
@@ -510,9 +506,9 @@ def parse_args():
             "iSerial field from `lsusb -v` output."
         ),
     )
-    platform_subparsers = parser_test.add_subparsers(help=platform_help_str)
+    parser_test_platform_subparsers = parser_test.add_subparsers(help=platform_help_str)
     for platform in ALL_PLATFORMS:
-        platform_specific_parser = platform_subparsers.add_parser(platform)
+        platform_specific_parser = parser_test_platform_subparsers.add_parser(platform)
         platform_specific_parser.set_defaults(platform=platform)
         platform_specific_parser.add_argument(
             "--microtvm-platform",
@@ -538,7 +534,10 @@ def parse_args():
     parser_release.add_argument(
         "--platform-version",
         required=True,
-        help="Platform version to release, in the form 'x.y'.",
+        help=(
+            "For Zephyr, the platform version to release, in the form 'x.y'. "
+            "For Arduino, the version of arduino-cli that's being used, in the form 'x.y.z'."
+        ),
     )
 
     return parser.parse_args()