Drew Galbraith
2dd69f5844
This allows us to easily track the physical memory so it can be freed when the thread exits. It also simplifies the page fault handler as it just needs to check regular mappings to find a user stack. |
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|---|---|---|
| .. | ||
| boot | ||
| capability | ||
| common | ||
| debug | ||
| include | ||
| interrupt | ||
| lib | ||
| loader | ||
| memory | ||
| object | ||
| scheduler | ||
| syscall | ||
| usr | ||
| CMakeLists.txt | ||
| README.md | ||
| TODO.md | ||
| linker.ld | ||
| zion.cpp | ||
README.md
Zion Microkernel
The Zion Microkernel is a capability based kernel. The types of objects that
processes can hold a capability to exist in the object/ directory. The system calls
used to interact with them are enumerated in include/zcall.h and are implemented
in the syscalls/ directory.
The system uses a barebones ELF loader (loader/init_loader.h) to jump to userspace
but from there userspace processes are responsible for loading child processes into
memory and executing them.
Open Work
The TODO file enumerates current areas for improvement.