WIP [kernel][arm64][mmu] store valid pte count in a page table

Avoids a relatively expensive check of a page table for emptiness when
unmapping an entry by storing the used count in the first 3 entries of a
page table.

Change-Id: I50051fb5be43cb81b65285b551b178588a095a9e
2 files changed
tree: 14e779a0bc7b3b5e49f0a1b87d28b3480dc9ed45
  1. .clang-format
  2. .clang-tidy
  3. .dir-locals.el
  4. .gitattributes
  5. .gitignore
  6. .gn
  7. .style.yapf
  8. AUTHORS
  9. BUILD.gn
  10. CODE_OF_CONDUCT.md
  11. CONTRIBUTING.md
  12. LICENSE
  13. OWNERS
  14. PATENTS
  15. README.md
  16. boards/
  17. build/
  18. bundles/
  19. docs/
  20. examples/
  21. garnet/
  22. peridot/
  23. products/
  24. rustfmt.toml
  25. scripts/
  26. sdk/
  27. src/
  28. third_party/
  29. tools/
  30. zircon/
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.