kmi - ACTIVE - Kernel with migrating threads as IPC

Age	Commit message (Collapse)	Author
2023-07-27	add ipc_kick	Kimplul
	+ Tests will have to come later
2023-07-26	allow tail call optimizations to happen easier	Kimplul

2023-07-26	fix possible segfault with non-gig memory sizes	Kimplul

2023-07-25	simplify fdt reg reading	Kimplul

2023-07-25	simplify populate/probe pmap	Kimplul

2023-07-24	split makefile into two parts	Kimplul
	+ First part generates deps.mk, second part reads it. Allows us to use both bmake and gmake with the same makefiles. Only drawback seems to be that the first makefile considers all individual files as 'finished' targets, meaning that it's more difficult to do something like make kernel.elf though I haven't found this to be an issue.
2023-06-14	move rpc check to ipc_respo	Kimplul

2023-06-11	add some clarifications to rpc stack stuff	Kimplul

2023-06-08	fix visionfive boot docs	Kimplul

2023-06-08	skip saving registers when possible	Kimplul

2023-06-08	add fast userspace return to do_ipc	Kimplul

2023-06-07	slightly improve padding	Kimplul

2023-06-07	add unlikely hint to leave_rpc	Kimplul

2023-06-07	slight improvements to building	Kimplul
	+ User can now specify debug, release and assert handling
2023-06-07	fix root node get_reginfo	Kimplul

2023-06-07	change register save/load to increasing order	Kimplul

2023-06-05	add check against calling ipc_resp erroneously	Kimplul

2023-06-05	give compiler more room to optimize rpc invocation	Kimplul
	+ Try to write arguments to memory as fast as possible to free up some registers that the compiler can then play with. Qemu runs ~1 700 000 rpc's per second, visionfive2 @1GHz (I think) ~800 000.
2023-06-04	clarify a few things	Kimplul

2023-06-04	slight optimization and brainfart fix	Kimplul

2023-06-04	remove misleading comment	Kimplul

2023-06-04	add some docs about visionfive2	Kimplul

2023-06-04	visionfive2 boots	Kimplul
	+ Make 8250 serial driver more generic + Still TODO: write a tutorial on how to boot on the visionfive2
2023-06-04	visionfive2 boots until debugging is initialized	Kimplul

2023-05-29	start trying to boot on visionfive 2	Kimplul
	+ Not bootable quite yet. Among other things, I couldn't get the current starfive u-boot fork to boot, so try adding support for booting with precompiled u-boot via the `go` command. Initial testing with qemu shows that this should be possible, and if it works, might be useful in the (far) future with other slightly janky SBCs. Also, NS16550 is 8250-based, and I'm really only using the base 8250, so rename and add visionfive 2 uart to list of compatibles. Visionfive 2 is still completely untested.
2023-05-17	align handle_irq to four byte boundaries always	Kimplul
	+ CSR_STVEC requires four byte alignment
2023-05-12	update README to reflect recent changes	Kimplul

2023-05-12	disable LTO with LLVM	Kimplul

2023-05-12	fix LLVM compilation	Kimplul
	+ RELEASE=1 doesn't work for some reason, though
2023-05-11	fix riscv64-linux-gnu- build	Kimplul

2023-05-11	only init is pic and fix a warning	Kimplul

2023-05-11	arbitrary load address and RAM base detection	Kimplul
	+ Both kind of go hand in hand, made sense to do both at the same time. Some parts feel slightly hacky, the loader works by placing everything on the stack and avoiding global values. Still, seems to work?
2023-05-08	improve undocumented file warning	Kimplul

2023-05-06	fix some formatting for terminal users	Kimplul

2023-05-06	Update README.md	Kimplul

2023-05-06	Update README.md	Kimplul

2023-05-06	make cross compile more conformant	Kimplul

2023-05-06	always use debug flag	Kimplul

2023-05-01	update license stuff	Kimplul

2023-05-01	bump dtc version	Kimplul

2023-04-30	conform closer to other project structures	Kimplul

2023-04-30	rename to kmi	Kimplul

2023-01-26	add req_page syscall	Kimplul

2023-01-16	initialize variable to zero	Kimplul
	+ Silences possible warning
2023-01-16	make process ids signed	Kimplul
	+ Unlikely to ever run into billions of threads, and this keeps in line with stuff like Linux. Also allows C to relatively painlessly implement hashmaps of pids, if neccessary.
2022-12-02	remove MR_SHARED	Kimplul
	+ The new shared memory plan doesn't need it.
2022-12-02	initial shared memory working	Kimplul

2022-12-01	start looking into memory handling	Kimplul
	+ Now 10M alloc/frees succeed, which totals more memory than the virtual machine has, so no too obvious leaks are occuring. For future debugging speed, changed 10M to 1M. + Also quick fix to rpcs, stacks are now assigned. Not entirely sure why they worked before this, but good that I found it.
2022-11-21	fix llvm	Kimplul

2022-11-21	make syscall handlers void	Kimplul