Add support for multiple GKI versions on VM

virt apex can now have multiple GKI versions for microdroid. Here are
behavior changes.

- OS name with "microdroid_gki-{ver}" is used to specify GKI.
- vm info shows available versions.
- gki option of vm tool gets a parameter, e.g. "--gki 6.1".

Some codes are refactored.

- Android.bp: defaults modules are added for deduplication.
- sign_virt_apex.py: gki_versions are added to remove hard-coded
  version (6.1).

Bug: 302465542
Test: vm info, vm run-microdroid --gki 6.1
Test: sign_virt_apex_test
Change-Id: I443a9e5a98d20d3c9337f2c13156590b4538c90b
8 files changed
tree: 47ed8dfafbc8aa12bd03f87d6182a94b90796e71
  1. apex/
  2. apkdmverity/
  3. authfs/
  4. compos/
  5. demo/
  6. demo_native/
  7. docs/
  8. encryptedstore/
  9. javalib/
  10. launcher/
  11. libs/
  12. microdroid/
  13. microdroid_manager/
  14. pvmfw/
  15. rialto/
  16. secretkeeper/
  17. service_vm/
  18. tests/
  19. virtualizationmanager/
  20. virtualizationservice/
  21. vm/
  22. vm_payload/
  23. vmbase/
  24. vmclient/
  25. zipfuse/
  26. .clang-format
  27. .gitignore
  28. Android.bp
  29. OWNERS
  30. PREUPLOAD.cfg
  31. README.md
  32. rustfmt.toml
  33. TEST_MAPPING
README.md

Android Virtualization Framework (AVF)

Android Virtualization Framework (AVF) provides secure and private execution environments for executing code. AVF is ideal for security-oriented use cases that require stronger isolation assurances over those offered by Android’s app sandbox.

Visit our public doc site to learn more about what AVF is, what it is for, and how it is structured. This repository contains source code for userspace components of AVF.

If you want a quick start, see the getting started guideline and follow the steps there.

For in-depth explanations about individual topics and components, visit the following links.

AVF components:

AVF APIs:

How-Tos: