Fix panic in vm_find() for reserved IDs

vm_find() is called from VM API and should return NULL if the given ID
does not correspond to a valid VM. This was not the case for ID zero
(reserved for the hypervisor), upon which Hafnium would fail a CHECK
and panic. Fix the issue and add a test case.

Test: hf_vcpu_get_count.reserved_vm_id
Change-Id: I0205e64c5cb5a98cdb24ba2cd75d417845ffaddd
3 files changed
tree: b6b0b7a722019ceb767d5c089a5545ebb209b654
  1. .vscode/
  2. build/
  3. docs/
  4. driver/
  5. inc/
  6. kokoro/
  7. project/
  8. src/
  9. test/
  10. third_party/
  11. .clang-format
  12. .clang-tidy
  13. .gitignore
  14. .gitmodules
  15. .gn
  16. AUTHORS
  17. BUILD.gn
  18. CONTRIBUTING.md
  19. LICENSE
  20. Makefile
  21. README.md
README.md

Hafnium

Hafnium is a hypervisor, initially supporting aarch64 (64-bit ARMv8 CPUs).

Get in touch and keep up-to-date at hafnium-discuss@googlegroups.com.

Getting started

To jump in and build Hafnium, follow the getting started instructions.

If you want to contribute to the project, see details of how we accept contributions.

Documentation

More documentation is available on: