[kernel][x86] Convert aps_still_booting from volatile int -> ktl::atomic

aps_still_booting is a bit vector tracking APs (secondary CPUs) in the
process of booting. Convert it from a volatile int on the boot cpu's
stack to a ktl::atomic<unsigned int>.

No other changes.

Change-Id: Ie5a271fb9e797b79cd4b05f670cff3e3b519215d
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/404833
Reviewed-by: George Kulakowski <kulakowski@google.com>
Testability-Review: George Kulakowski <kulakowski@google.com>
Commit-Queue: Venkatesh Srinivas <venkateshs@google.com>
4 files changed
tree: a9010a11a4d7b1c60f9716f8a1905a05f68c50ff
  1. boards/
  2. build/
  3. bundles/
  4. cts/
  5. docs/
  6. examples/
  7. garnet/
  8. products/
  9. scripts/
  10. sdk/
  11. src/
  12. third_party/
  13. tools/
  14. zircon/
  15. .clang-format
  16. .clang-tidy
  17. .gitattributes
  18. .gitignore
  19. .gn
  20. .style.yapf
  21. AUTHORS
  22. BUILD.gn
  23. CODE_OF_CONDUCT.md
  24. CONTRIBUTING.md
  25. LICENSE
  26. OWNERS
  27. PATENTS
  28. README.md
  29. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.