ilo-pona/xv6-65oo2
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207 commits

Author SHA1 Message Date
Frans Kaashoek
8f58cc7df9 Cosmetic change (thanks Harry Porter) 2022-08-12 12:59:33 -04:00
Frans Kaashoek
62bc610424 cosmetic changes (thanks Harry Porter) 2022-08-12 11:47:39 -04:00
Frans Kaashoek
dd5a720044 cosmetic changes (thanks Harry Porter) 2022-08-12 10:57:16 -04:00
Frans Kaashoek
8bd04852c9 Delete rtcdate, which is a left-over from an old lab (thanks Harry Porter) 2022-08-12 09:43:18 -04:00
Frans Kaashoek
48d1a7ffa5 Add USED to states (thanks Harry Porter) 2022-08-12 09:14:54 -04:00
Robert Morris
c908d20132 put walk() in defs.h so it's clear students can call it 2022-08-10 07:21:50 -04:00
Robert Morris
872fa88e8a tolerate running out of disk blocks 2022-08-10 06:13:52 -04:00
Robert Morris
7d573bae2a Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv 2022-08-10 06:00:57 -04:00
Robert Morris
f4b3edf5ab comment nits 2022-08-10 06:00:40 -04:00
WaheedHafez
9f3673c4da fix 'kfree' comment in kalloc.c 
'kfree' has a parameter named 'pa' but referenced in the comment as 'v'.
 2022-08-09 20:29:38 -04:00
Ravjot Singh Samra
a2e4051b99 Added missing va_end(). 2022-08-09 20:20:32 -04:00
Robert Morris
7d8bfdcbe3 nothing much 2022-08-09 15:11:25 -04:00
Robert Morris
27a669ef25 comment nits 2022-08-09 14:17:46 -04:00
Robert Morris
af9abaca05 Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv 2022-08-09 13:41:51 -04:00
Robert Morris
3abd7a16dd comment 2022-08-09 13:41:45 -04:00
Robert Morris
cf0c095721 sscratch cleanup 2022-08-09 12:14:29 -04:00
Robert Morris
9fc9f755e1 adopt github PR98 (No need to store TRAPFRAME in sscratch register) 2022-08-09 11:44:02 -04:00
Robert Morris
ca6fc54934 tweak virtio comments 2022-08-08 11:10:54 -04:00
Xi Wang
cd00a8233a port virtio_disk to virtio spec 1.0+ 
The legacy interface is confusing. It's better to make virtio_disk
conform to the virtio spec. This is supported in QEMU since 4.2 by
disabling force-legacy for virtio-mmio.
 2021-10-17 23:05:09 -07:00
Frans Kaashoek
8ca56e9e0b memmove(dst, src, 0) leads to overflow in while(n-- > 0) as n is uint64 (thanks 
Matúš Jókay <matus.jokay@stuba.sk>)
 2021-09-01 07:29:12 -04:00
yzhu
a103113db0 fix ld warning: undefined symbol _entry 2021-08-31 20:58:58 -04:00
Pavan Maddamsetti
e07ca66145 comment 2021-08-31 14:27:33 -04:00
l0stman
19ff379661 exec() only accepts MAXARG arguments 
The terminating NULL string is already included (see sys_exec()).
 2021-08-31 14:26:43 -04:00
l0stman
9195142959 Assert that the size in mappages() is always positive 
If va % PGSIZE == 0 and size == 0, we have last < a at the start of
the loop so we might never terminate.  That being said, this
particular case couldn't be triggered for now.
 2021-08-31 14:20:32 -04:00
kimjungwow
f55def8a64 Change inode cache in main.c to inode table 2021-08-31 14:17:39 -04:00
amane-uehara
dd6d5d0a41 I fixed a typo in the comment. 2021-08-31 14:16:59 -04:00
OptimisticSide
1226b09dc4 Remove setproc prototype 2021-08-31 14:14:38 -04:00
Vadim Kolontsov
f524198792 fix comment for 'sepc' 2021-08-31 14:12:36 -04:00
FIXED-TERM Chen Ian (BT-CO/QMM5)
8d4ff0bc1e fix typos in user/usertest.c & kernel/log.c 2021-08-31 14:10:14 -04:00
Jonathan Behrens
9655f71758 Configure PMP at boot 2021-08-30 16:27:52 -04:00
Robert Morris
6de0381d61 check for alignment just once 2021-08-10 07:12:41 -04:00
Frans Kaashoek
077323a8f0 Rename icache to itable 
The inode cache isn't really a cache. The main purpose of it is to
allow for synchronization (locking individual inodes), providing
long-lived references to inodes, and ensuring that there is only inode
in memory.
 2020-11-23 19:30:15 -05:00
Frans Kaashoek
b4c2851bb3 Be principled: acquire lock first 2020-11-05 19:50:46 -05:00
Robert Morris
38084bcea8 proc_tree_lock -> wait_lock 2020-11-05 19:50:46 -05:00
Robert Morris
ba8d9f4808 don't over-lock in exit() 2020-11-05 19:50:46 -05:00
Robert Morris
47323c97cf oops 2020-11-05 06:56:51 -05:00
Robert Morris
2875069973 Frans' proc_lock. 2020-11-05 06:56:51 -05:00
Robert Morris
b48ea5d220 free proc if kalloc fails 2020-11-05 06:56:51 -05:00
Robert Morris
5e392531c0 hopefully make writei more correct 2020-11-05 06:56:51 -05:00
Robert Morris
e1bb4c7434 test for closed pipe or killed on every char, not just if pipe full 2020-11-05 06:56:51 -05:00
Robert Morris
329935eca8 fix uart.c to work with UART_TX_BUF_SIZE == 1 2020-11-05 06:56:51 -05:00
Robert Morris
13dccb0380 consolewrite does not need cons.lock -- can lead to sleep() with lock held 2020-11-05 06:56:51 -05:00
Frans Kaashoek
d4cecb269f kvmmake() makes a complete kernel page table, matching Figure 3.3 2020-10-14 20:28:16 -04:00
Fumiya Shigemitsu
93378618df Fix minor typos 2020-10-14 20:28:14 -04:00
Robert Morris
bebecfd6fd more explicable scratch area size for machine-mode timer interrupts 2020-10-05 19:30:27 -04:00
Frans Kaashoek
c199afe4c8 Don't map the CLINT, since it never used in the kernel in supervisor mode 2020-10-05 19:30:27 -04:00
Robert Morris
c61cc69413 eliminate virtio DMA into kernel stacks. 2020-10-05 19:30:27 -04:00
Robert Morris
3092fe2c9e improve virtio_disk comments; bring it closer to wording in the spec 2020-10-05 19:30:27 -04:00
Robert Morris
548ffc97e1 don't unpin if recovering -- the resulting negative refcnt suppresses next unpin 2020-10-05 19:30:27 -04:00
Robert Morris
aeaf610c67 avoid deadlock by disk intr acking interrupt first, then processing ring 2020-10-05 19:30:27 -04:00