Robert Morris
2df42355f7
all of PTE_FLAGS
2019-09-17 06:07:58 -04:00
Frans Kaashoek
7e6c37e67e
Support exit status for exit/wait
...
One test case for returning a exit status
Passes usertests, but haven't used it to simplify tests
2019-09-10 12:30:10 -04:00
Robert Morris
a33f60fea3
console/uart tweaks
2019-07-27 05:47:19 -04:00
Robert Morris
f0987d82dc
???
2019-07-26 11:09:54 -04:00
Robert Morris
c714e3e35c
machinevec -> timervec
2019-07-26 10:17:02 -04:00
Robert Morris
fa2e2e3c81
uservec before userret in trampoline, to match book and kernelvec
2019-07-26 09:38:22 -04:00
Robert Morris
ea95a6654c
trampin -> uservec
...
trampout -> userret
2019-07-26 04:53:46 -04:00
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