135 Commits

Author	SHA1	Message	Date
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
Stephen Marz	f7547d5c59	Add comments about pointer arithmetic.	2019-11-04 15:27:56 -05:00
Stephen Marz	783cdcfc3b	Remove if statement--let boolean condition stand	2019-11-04 15:26:47 -05:00
Stephen Marz	0c71107da8	Add PLIC functions	2019-11-04 15:25:27 -05:00
Stephen Marz	49d8d6666a	Start chapter 5	2019-11-04 13:14:28 -05:00
Stephen Marz	f13948d5c0	Fixed typos, updates.	2019-11-04 13:04:00 -05:00
Stephen Marz	6cbf12ada9	Updates to pages	2019-11-03 21:26:39 -05:00
Stephen Marz	6cc5cba4b8	Added return_pc as mutable	2019-11-03 21:23:30 -05:00
Stephen Marz	07dffe1823	added ecall printf	2019-11-03 21:21:43 -05:00