GKaszewski/k-os
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dd5c2c72680b1828b71193383f33a162a5511b74
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5 Commits

Author SHA1 Message Date
Gabriel Kaszewski
b7bc223a79 feat: add Halt syscall, fault notification to fault handler, supervisor with back-off, shutdown with timeout 
- Halt syscall: only pid 0 (init) can halt, adapter uses SBI SRST
- Fault notification: kernel delivers fault info to process fault handler endpoint before killing
- Supervisor: tracks restart counts, back-off up to 5 restarts
- Shutdown: notifies servers, waits with timeout, calls halt
- Trap handler: faults now call kernel.handle_fault instead of halting
 2026-10-18 03:29:05 +02:00
Gabriel Kaszewski
7724a5bd0a feat: implement context switching, SavedContext with pc/status fields, wire all syscall outcomes and timer preemption 2026-10-18 02:34:36 +02:00
Gabriel Kaszewski
5a45c14cf5 feat(adapter-riscv): replace static mut with KernelCell, complete all 17 syscall decoders, wire timer and PLIC interrupts to kernel 2026-10-18 02:29:46 +02:00
Gabriel Kaszewski
570fe22bee feat: userspace round-trip — syscall stubs, ecall dispatch, U-mode entry and exit on QEMU 2026-10-18 02:15:35 +02:00
Gabriel Kaszewski
d327794d33 refactor(adapter-riscv): restructure into hw/, mmu/, trap/ modules with board constants 
Add Priority::DEFAULT and TimeSlice::DEFAULT to types crate.
All QEMU virt addresses consolidated in board.rs.
Structure mirrors future adapter-arm/ layout.
 2026-10-18 02:05:57 +02:00