vmbase: uart: Move asm block to crate::arch

Move the manual assembly into the vmbase::arch module so that the
vmbase::uart driver remains arch-agnostic, making it easier to port to
other CPU architectures.

Note that the manual assembly is preferred over using the standard
write_volatile() due to b/345658173 and [1] (see also aosp/3125955).

[1]: https://github.com/rust-lang/rust/issues/131894

Test: m pvmfw # Then check disassembly for STRB
Change-Id: I6d404df4c0439b8e208d1ef533b60434d2b2bec8
2 files changed
tree: 178446edcedd863ab09964e01ce44b7efab73529
  1. android/
  2. build/
  3. docs/
  4. guest/
  5. libs/
  6. microfuchsia/
  7. tests/
  8. .clang-format
  9. .gitignore
  10. Android.bp
  11. dice_for_avf_guest.cddl
  12. OWNERS
  13. PREUPLOAD.cfg
  14. README.md
  15. rustfmt.toml
  16. 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: