Make sure tombstone is transmitted before VM exit

This change makes tombstone_transmit more robust by doing:
1) running tombstone_transmit *after* mounting APEXes, because
   tombstone_transmit isn't a bootstrap binary.
2) marking tombstone_transmit as shutdown critical, for init to wait
   tombstone_transmit upon shutdown.
3) stopping tombstoned, in case export_tombstones is false.

Bug: 236588647
Test: atest MicrodroidTests MicrodroidHostTestCases
Change-Id: I53f93ed384bdc0e558e0d899a0c9e7b01623a933
2 files changed
tree: fa909a58ebf0a2f3922a121244854797b675d974
  1. .prebuilt_info/
  2. apex/
  3. apkdmverity/
  4. authfs/
  5. compos/
  6. demo/
  7. docs/
  8. javalib/
  9. launcher/
  10. libs/
  11. microdroid/
  12. microdroid_manager/
  13. pvmfw/
  14. rialto/
  15. tests/
  16. virtualizationservice/
  17. vm/
  18. vmbase/
  19. vmclient/
  20. zipfuse/
  21. .clang-format
  22. .gitignore
  23. Android.bp
  24. OWNERS
  25. PREUPLOAD.cfg
  26. README.md
  27. TEST_MAPPING
README.md

Virtualization

This repository contains userspace services related to running virtual machines on Android, especially protected virtual machines. See the getting started documentation and Microdroid README for more information.