mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2025-02-02 09:20:59 +00:00
e71c7b7819
The existing code for "host" and "max" CPU models overrides every single feature in the CPU object at realize time, even the ones that were explicitly enabled or disabled by the user using "feat=on" or "feat=off", while features set using +feat/-feat are kept. This means "-cpu host,+invtsc" works as expected, while "-cpu host,invtsc=on" doesn't. This was a known bug, already documented in a comment inside x86_cpu_expand_features(). What makes this bug worse now is that libvirt 3.0.0 and newer now use "feat=on|off" instead of +feat/-feat when it detects a QEMU version that supports it (see libvirt commit d47db7b16dd5422c7e487c8c8ee5b181a2f9cd66). Change the feature property getter/setter to set a env->user_features field, to keep track of features that were explicitly changed using QOM properties. Then make the max_features code not override user features when handling "-cpu host" and "-cpu max". This will also allow us to remove the plus_features/minus_features hack in the future, but I plan to do that after 2.9.0 is released. Backports commit d4a606b38b5d4b3689b86cc1575908e82179ecfb from qemu |
||
|---|---|---|
| bindings | ||
| docs | ||
| include | ||
| msvc | ||
| qemu | ||
| samples | ||
| tests | ||
| .appveyor.yml | ||
| .gitignore | ||
| .travis.yml | ||
| AUTHORS.TXT | ||
| Brewfile | ||
| ChangeLog | ||
| config.mk | ||
| COPYING | ||
| COPYING.LGPL2 | ||
| COPYING_GLIB | ||
| CREDITS.TXT | ||
| install-cmocka-linux.sh | ||
| list.c | ||
| make.sh | ||
| Makefile | ||
| msvc.bat | ||
| pkgconfig.mk | ||
| README.md | ||
| uc.c | ||
| windows_export.bat | ||
Unicorn Engine
Unicorn is a lightweight, multi-platform, multi-architecture CPU emulator framework based on QEMU.
Unicorn offers some unparalleled features:
- Multi-architecture: ARM, ARM64 (ARMv8), M68K, MIPS, SPARC, and X86 (16, 32, 64-bit)
- Clean/simple/lightweight/intuitive architecture-neutral API
- Implemented in pure C language, with bindings for Crystal, Clojure, Visual Basic, Perl, Rust, Ruby, Python, Java, .NET, Go, Delphi/Free Pascal and Haskell.
- Native support for Windows & *nix (with Mac OSX, Linux, *BSD & Solaris confirmed)
- High performance via Just-In-Time compilation
- Support for fine-grained instrumentation at various levels
- Thread-safety by design
- Distributed under free software license GPLv2
Further information is available at http://www.unicorn-engine.org
License
This project is released under the GPL license.
Compilation & Docs
See docs/COMPILE.md file for how to compile and install Unicorn.
More documentation is available in docs/README.md.
Contact
Contact us via mailing list, email or twitter for any questions.
Contribute
If you want to contribute, please pick up something from our Github issues.
We also maintain a list of more challenged problems in a TODO list.
CREDITS.TXT records important contributors of our project.