13 commits

Author	SHA1	Message	Date
Robert Morris	8f6865d1f1	display assembly instructions, to help with first.tex exercise	2019-07-24 10:15:45 -04:00
Robert Morris	54178ad94d	simplify kernel mapping calls	2019-07-23 12:17:17 -04:00
Frans Kaashoek	b8a31c494c	one more TRAMPOLINE	2019-07-23 07:30:23 -04:00
Robert Morris	6bbc2b2245	cosmetic changes	2019-07-11 10:38:56 -04:00
Robert Morris	5eb1685700	have kill() lock before looking at p->pid ... document wait()'s use of np->parent w/o holding lock.	2019-07-10 09:24:50 -04:00
Robert Morris	9981bb2270	tweak some comments.	2019-07-10 08:57:51 -04:00
Frans Kaashoek	1e4d7065d6	Merge branch 'riscv' into riscv-proc	2019-07-02 14:19:31 -04:00
Frans Kaashoek	67702cf706	Checkpoint switching to per-process locks, in attempt clarify xv6's ... locking plan, which is a difficult to understand because ptable lock protects many invariants. This implementation has a bug: once in a while xv6 unlocks a proc lock that is locked by another core.	2019-07-02 09:14:47 -04:00
Robert Morris	40f1041a0a	don't enable interrupts until done with sstatus, scause, &c	2019-07-02 05:20:11 -04:00
Robert Morris	0498bfd159	timer interrupt in the kernel -> yield	2019-07-01 13:46:11 -04:00
Robert Morris	ca39672a30	clean up virtio code	2019-06-13 09:40:17 -04:00
Robert Morris	de9d72c908	virtio disk driver	2019-06-13 06:49:02 -04:00
Robert Morris	5753553213	separate source into kernel/ user/ mkfs/	2019-06-11 09:57:14 -04:00

Renamed from trap.c (Browse further)