hps/daemon/init/hpsd.conf

# Copyright 2021 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

description   "Start Chrome OS HPS service"
author        "chromium-os-dev@chromium.org"

# Environment variables for daemon configuration.
# They are defaulted here and should be overridden in hpsd.override
env HPS_HW_FLAGS="--test --skipboot"

# hpsd is started by udev
stop on stopping boot-services
expect fork
respawn
respawn limit 10 600
# upstart will not restart us when we exit with this code
# hpsd exit(5)s only when an update fails to install
normal exit 5

env RESPAWN_DELAY=5
# Give the post-stop process a bit more than 5 seconds to terminate.
kill timeout 8

# Make hpsd killable, because if it has a leak it's better to
# restart it than to OOM-panic.
oom score -100

pre-start script
  mkdir -m 0700 -p /var/lib/hpsd/metrics
  chown -R hpsd:hpsd /var/lib/hpsd
end script

post-stop script
  # If post-stop is somehow killed for timeout, treat that as a clean exit.
  trap "exit 0" TERM

  goal=$(status "${UPSTART_JOB}" | awk '{split($2, a, "/"); print a[1]}')
  if [ "${goal}" = "start" ]; then
    # Sleep only if it's respawning, so we don't need to wait when doing `stop`
    # in tests or manually.
    sleep "${RESPAWN_DELAY}"
  fi
end script

exec minijail0 --config /usr/share/minijail/hpsd.conf \
    -- /usr/sbin/hpsd \
    --version_file=/usr/lib/firmware/hps/mcu_stage1.version.txt \
    --mcu_fw_image=/usr/lib/firmware/hps/mcu_stage1.bin.xz \
    --fpga_bitstream=/usr/lib/firmware/hps/fpga_bitstream.bin.xz \
    --fpga_app_image=/usr/lib/firmware/hps/fpga_application.bin.xz \
    $HPS_HW_FLAGS