kmi - ACTIVE - Kernel with migrating threads as IPC

Age	Commit message (Collapse)	Author
2022-11-13	~700k ipc requests	Kimplul
	+ Eliminated need for save/load_regs, now the register save area is behind a pointer which _slightly_ increases overall syscall delay, but speeds up ipc requests by a fair bit.
2022-11-13	give uvmem_map more fitting name	Kimplul
	+ It really only works with Sv39, I suppose similar structures should be added for Sv4} etc. if I ever get around to it.
2022-11-13	write init more sensibly	Kimplul
	+ Both easier to look at and now the userspace doesn't play as big of a role in the 'benchmarking' with optimizations turned on.
2022-11-12	release mode, ~600k requests	Kimplul

2022-11-12	make 'performance' results more accurate in qemu	Kimplul

2022-11-12	slight optimization	Kimplul

2022-11-12	initial rpc implementations	Kimplul

2022-11-11	less buggy fork	Kimplul
	+ Not strictly done yet, but we can swap between two processes :D
2022-11-10	initial implementation of process copying	Kimplul
	+ Not actually working (at least fully), need to continue debugging when I have time.
2022-11-09	add basic IPI structure	Kimplul

2022-10-29	rewrite pmem	Kimplul

2022-10-22	start outlining ipc	Kimplul

2022-10-22	create impl and CAP_PROC checking	Kimplul

2022-10-22	initial high level fork imp	Kimplul

2022-10-21	beautification	Kimplul

2022-10-21	initial implementation of swap	Kimplul
	+ Slightly unsure if it should be a syscall, or if assign would be enough. Also, which thread should run in a fork/spawn? For now, old thread, though this might increase latency. Or add swap flag to these calls?
2022-10-21	initial spawn implementation	Kimplul

2022-10-21	slight optimisation to cur_tcb on riscv	Kimplul

2022-09-15	change syscalls to take 5 params and return 6	Kimplul
	+ In total, a syscall is built up of 6 values, with the first being the syscall number. Symmetrically, the first value is now a status and the following five values return "values". This allows us to cram in more info into the ipc_* functions. The performance difference is absolutely minimal, at least from my testing in qemu.
2022-09-15	add SYS_TICKS	Kimplul

2022-09-14	add putch syscall for easier userspace debugging	Kimplul
	+ Note that it is NOT intended for end user usage, just for debugging.
2022-09-14	add canary to kernel stack	Kimplul

2022-09-14	riscv32 boots and advances as far as riscv64	Kimplul

2022-09-11	change external directory structure	Kimplul
	+ Prepare for possibly testing rv32 + Also remove newline from debugging output
2022-09-11	allow building with riscv64-linux-gnu	Kimplul
	+ May warn about PHDR not being in LOAD, there is a flag to silence it (--no-warn-rwx-segment) but it doesn't seem to exist in riscv64-unknown-elf for some reason.
2022-09-02	reserve more space for fw	Kimplul
	+ Doesn't seem to be specified anywhere, but I'll stick with 2MB for now, working on the assumption that the FW is at the start of the physical RAM. Possible TODOs: generate apos.its automatically from init.elf, allocate root_branch statically?
2022-09-02	fix documentation warnings	Kimplul

2022-06-12	add license texts	Kimplul

2022-06-11	continue documentation	Kimplul

2022-06-11	fix ubsan warning in release mode	Kimplul

2022-06-11	continue documentation	Kimplul

2022-06-09	use doxygen todo	Kimplul

2022-06-09	continue documentation	Kimplul

2022-05-29	continue documentation efforts	Kimplul

2022-05-29	modify formatting rules	Kimplul

2022-05-29	continue documentation efforts.	Kimplul

2022-05-28	continue documenting source	Kimplul

2022-05-28	implement set_ipc on riscv	Kimplul

2022-05-28	start implementing new proc/rpc handling	Kimplul
	+ Essentially, separate root process and remote procedure call handling. I really should write down some documentation so I don't forget, but essentially: All threads share a common process virtual memory, and when a thread wants to make an rpc, it switches over to its own rpc vmem space that is linked to the remote process.
2022-05-24	make process loading more generic	Kimplul

2022-05-24	initial musings about exec	Kimplul

2022-05-23	start writing documentation	Kimplul

2022-05-23	modify file gen	Kimplul

2022-05-23	new include structure, make parse easier for doxy	Kimplul

2022-05-23	switch from clang-format to uncrustify	Kimplul
	The output is close enough, and I like that uncrustify is a third-party tool, so people can install a single tool for formatting instead of having to lug around a whole toolchain. I fully expect to have to add settings to uncrustify.conf, but let's see how this goes.
2022-05-22	fixed accidental removal of CLEANUP_CMD	Kimplul

2022-05-22	add @file info to all files	Kimplul
	+ Next step, start documenting contents of each file.
2022-05-22	rename vm_branch to vmem	Kimplul
	+ Closer to what it's for rather than what it is.
2022-05-22	improved tcb handling in preparation for processes	Kimplul

2022-05-21	add status info to memory mappings	Kimplul
	+ next up would probably be to start working on process/thread relationships, largely as documented. Still not entirely sure about how I want to handle fork, but I suppose I might figure it out at some point.