143 Commits

Author	SHA1	Message	Date
Stephen Marz	7b038cdc24	Right now, we return a pointer by usize. This is not good programming in ... Rust. Instead, the scheduler needs to be modified to return a process structure's reference. Then, we can extract the fields and then switch. However, this will require us to have to change how the PROCESS_LIST works. Since it uses move constructs, we cannot move a process out of it when we replace the process list.	2020-03-12 13:55:11 -04:00
Stephen Marz	d9b1743698	Changed scheduler to only return the frame and satp register. The mepc ... is now stored in the trap frame.	2020-03-12 13:54:39 -04:00
Stephen Marz	c6b261bf20	Added comments and reformatted using rustfmt	2020-03-12 13:36:50 -04:00
Stephen Marz	bc9158bd23	Changed the queue size to only take one page.	2020-03-12 13:36:18 -04:00
Stephen Marz	f5ce75dbe8	Finished setup, rearranged queue creation and testing bits. This makes it so we don't have to free anything if we fail after setting up the queue.	2020-03-12 13:36:08 -04:00
Stephen Marz	a32c6fc995	Updates	2020-03-11 17:09:09 -04:00
Stephen Marz	46a6296dec	Added block specific routines and stub setup routine for block devices	2020-03-10 19:29:29 -04:00
Stephen Marz	39cb72ad9f	Added virtio probing to kinit	2020-03-10 17:17:12 -04:00
Stephen Marz	a29698221d	Added virtio structures and stubs for setting up devices	2020-03-10 17:16:57 -04:00
Stephen Marz	d403ae8b7b	Add hdd.dsk to ignore	2020-03-10 17:16:44 -04:00
Stephen Marz	3ffb53405d	Add many virtio devices	2020-03-10 17:16:13 -04:00
Stephen Marz	795e7945f8	Load block device through make run	2020-03-10 16:51:22 -04:00
Stephen Marz	d44f729957	Split CTX switch time and frequency and also use build_satp for switching to user process	2020-03-10 15:35:21 -04:00
Stephen Marz	f2b1e2018a	Moved PC to trap frame so we don't restart the function	2020-03-10 14:55:26 -04:00
Stephen Marz	2984472493	Added chapter 9	2020-03-10 13:52:09 -04:00
Stephen Marz	d154e86d9e	Added Cargo.lock	2020-03-10 13:51:44 -04:00
Stephen Marz	08c5ddafc2	Updated comments and removed debugging code	2020-03-10 13:50:08 -04:00
Stephen Marz	2bcf1bb000	Change cycle time	2020-03-10 13:01:32 -04:00
Stephen Marz	b27784ed52	Separate sched and switch_to_user	2020-03-10 12:59:36 -04:00
Stephen Marz	cb54d823d2	Fire off the first CTX switch timer!	2020-03-10 12:46:52 -04:00
Stephen Marz	429b056921	Updates to system call. Change stack pointer for MMU	2020-03-10 12:44:08 -04:00
Stephen Marz	88c672171e	Fixed trap. Forgot to reset mtvec in switch_to_user	2020-03-10 12:41:16 -04:00
Stephen Marz	f2f5c855cf	M	2020-03-10 11:21:15 -04:00
Stephen Marz	57145beefd	Fixed trap handler, load kernel stack from trap, fixed init, map a larger swath of memory for init.	2020-03-10 11:20:00 -04:00
Stephen Marz	e6ccf15bda	Added .gitignore to make this doable	2020-03-09 17:51:32 -04:00
Stephen Marz	ee92f8e123	Ugh. Remove target	2020-03-09 17:51:10 -04:00
Stephen Marz	b139313874	Added chapter 8	2020-02-22 08:53:59 -05:00
Alex Chi	2474df886c	Add data flush in uart put function	2020-02-03 10:33:00 +08:00
Stephen Marz	4ffb6e3e3b	Added syscall and shell scheduler	2020-01-18 20:22:47 -05:00
Stephen Marz	e8e379e557	Updates to ch6 -- post ready.	2019-12-08 14:30:41 -05:00
Stephen Marz	eb0c943a71	Updates to process.	2019-12-07 22:04:13 -05:00
Stephen Marz	c1e247cad5	Move lots of code to support user processes.	2019-12-07 13:59:39 -05:00
Stephen Marz	f8c2faa3ae	Updates to process code.	2019-12-05 19:52:02 -05:00
Stephen Marz	fa82110eac	Added adjustment constants.	2019-11-28 12:27:13 -05:00
Stephen Marz	ba678d2252	Fixed HEAP map bug.	2019-11-28 12:22:42 -05:00
Stephen Marz	b723763292	Free root table.	2019-11-28 12:05:24 -05:00
Stephen Marz	b61b3ebbf5	Use zalloc to clear page tables.	2019-11-28 12:04:21 -05:00
Stephen Marz	c99bff8944	Use zalloc to clear page tables.	2019-11-28 12:02:37 -05:00
Stephen Marz	c5179e60d6	Added virtual memory allocation.	2019-11-28 12:01:52 -05:00
Stephen Marz	26e37d33d3	Added comments to process	2019-11-27 23:42:50 -05:00
Stephen Marz	d0c3c9ff6e	Add Process structure and routines.	2019-11-27 17:02:07 -05:00
Stephen Marz	4ec1301e8f	Added chapter 6	2019-11-27 12:59:29 -05:00
Stephen Marz	b9158e5ef7	Added comments for plic.	2019-11-18 19:30:19 -05:00
Stephen Marz	5ca14d6e65	Added comments, moved UART	2019-11-18 19:21:32 -05:00
Stephen Marz	61bb8f3a43	Added comments	2019-11-18 19:19:05 -05:00
Stephen Marz	7faf580765	Added PLIC	2019-11-18 19:14:16 -05:00
Stephen Marz	fb86ff06da	Added PLIC	2019-11-18 19:14:08 -05:00
Stephen Marz	03ff50ef30	Added PLIC	2019-11-18 19:13:52 -05:00
Stephen Marz	b3cd92dc41	Added comments	2019-11-10 09:20:40 -05:00
Stephen Marz	e2dfa8661f	Remove public constants	2019-11-04 15:35:24 -05:00