Imbus/xv6-riscv-kernel
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
1223 commits 1 branch 0 tags 18 MiB
Commit graph

1223 commits

This branch
This branch
All branches
Author SHA1 Message Date
Robert Morris
2df42355f7 all of PTE_FLAGS 2019-09-17 06:07:58 -04:00
Robert Morris
036b5edf12 set architecture riscv:rv64 -- fix gdb trampoline disassembly, thanks jonathan 2019-09-12 10:48:48 -04:00
Robert Morris
35010f0d0f error exit status is 1 2019-09-11 10:04:40 -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
Frans Kaashoek
035cca95fe Make the end variable be really at the end of bss, and delete + 4096 in freerange() 2019-09-08 15:19:19 -04:00
Robert Morris
e5b7fa62cc thanks to Anthony Coulter 2019-09-08 06:51:58 -04:00
Robert Morris
fc337af2b6 fix a grep bug 2019-09-05 16:50:55 -04:00
Robert Morris
c0beeccb1b have echo use FD 1 for clarity 2019-09-04 10:12:53 -04:00
Robert Morris
25e113138d sfence.vma in trampoline as well 2019-09-03 16:29:48 -04:00
Robert Morris
9b9e2dd0f2 fix sfence_vma comment 2019-09-03 16:25:11 -04:00
Robert Morris
86a1d4b295 sfence_vma after satp 2019-09-03 15:45:07 -04:00
Robert Morris
64b93d175a user printf(1 -> printf( 2019-08-27 13:13:03 -04:00
Frans Kaashoek
a3f6d9fd1e cow moved to xv6-riscv-fall19 2019-08-26 21:16:33 -04:00
Frans Kaashoek
92c3c02098 RISC-V port doesn't borrow this code 2019-08-26 08:49:50 -04:00
Frans Kaashoek
510bcde894 Add major/minor/mkdev 
Maybe apply this change to master
 2019-08-23 19:41:53 -04:00
Frans Kaashoek
7241838b4c Move labs into 6.828 repo. The lab text isn't dependent on specific 
xv6 code. Lab submission instructions etc. are likely going to be more
MIT 6.828 specific.
 2019-08-20 20:23:18 -04:00
Frans Kaashoek
c612d452fd validateint doesn't test something interesting on RISC-V; delete it. 2019-08-20 13:04:12 -04:00
Frans Kaashoek
b564fca246 Rationalize some constants in usertests 2019-08-20 12:58:00 -04:00
Frans Kaashoek
d98ddadd79 Also release buffer on failed copyout 2019-08-20 12:46:56 -04:00
Frans Kaashoek
6005ef5a1c Release buffer also when copyin fails 2019-08-20 11:57:24 -04:00
Frans Kaashoek
d9818b89e1 512 -> BSIZE 2019-08-20 11:56:56 -04:00
Frans Kaashoek
a825f22cf8 Merge remote-tracking branch 'origin/master' into riscv 2019-08-19 19:27:29 -04:00
Dan Cross
82638c019c Avoid rereading the superblock in bfree 
The superblock is read when the first process returns to
userspace (via the call to `iinit` from the first invocation of
`forkret`, when `first` is still set to 1) and cached in a
global; it is treated as immutable from that point on.  There is
no reason to re-read it in bfree.

Removing this call seems to have simply been missed in 8320d61b
when this general area was last touched.  Remove it now to avoid
potential confusion.

Signed-off-by: Dan Cross <cross@gajendra.net>
 2019-08-19 19:25:43 -04:00
Frans Kaashoek
21ad8c76bc A few now unused DOC 2019-08-19 18:12:19 -04:00
Frans Kaashoek
ce565ae04a dan cross 2019-08-19 14:46:33 -04:00
Frans Kaashoek
e10f797762 Merge remote-tracking branch 'origin/master' into riscv 2019-08-19 13:35:47 -04:00
Dan Cross
0581c37baf Removed unused dirlookup argument in create 
The `off` argument to `dirlookup` is optional.  It
was not being used in the `dirlookup` call in `create`,
so pass NULL instead and delete the unused local.

Signed-off-by: Dan Cross <cross@gajendra.net>
 2019-08-19 13:22:35 -04:00
Frans Kaashoek
2501560cd6 Cosmetic cleanup: fsinit reads sb and calls loginit. initialize icache 
in main.c and don't make it disk specific; the icache is shared.  This
doesn't matter since we have only one disk, but conceptually cleaner
and maybe helpful to students for mount lab.
 2019-08-18 14:35:11 -04:00
Frans Kaashoek
a9953236cc x 2019-08-17 12:52:25 -04:00
Frans Kaashoek
e61377bf8a Update write up to reflect new test cases. 2019-08-17 12:33:32 -04:00
Frans Kaashoek
5498ee2e92 Draft mount/umount lab as an alternative lab for fs.html 
fs.html should perhaps be split in small homeworks as in previous
years in preparation for lectures and/or as demos during lecture.
 2019-08-12 10:25:55 -04:00
Frans Kaashoek
e398a9815c Wrap state of disk driver in a struct so that it is easier to support 
several disks (e.g., in a mount lab).
 2019-08-12 07:20:32 -04:00
Robert Morris
d96a8c5661 add alarmtest.c to the repository 
they don't have to modify alarmtest.c, so we can use the
original version to test, to make it harder to cheat.
 2019-08-05 02:04:44 -04:00
Robert Morris
deec67f05d alarm stuff 2019-08-03 07:12:00 -04:00
Frans Kaashoek
fdea265489 two notes 2019-08-02 16:42:55 -04:00
Frans Kaashoek
564d10bb22 Add simple crash recovery assignment to fs lab 2019-08-02 16:29:25 -04:00
Robert Morris
c5163e4a42 nits 2019-08-02 16:22:56 -04:00
Robert Morris
3bee885ed7 some XXX questions 2019-08-02 14:51:04 -04:00
Robert Morris
e788af9b81 oops, back to alarm() 2019-08-02 13:25:57 -04:00
Robert Morris
0b5c01d429 Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv 2019-08-02 13:18:37 -04:00
Robert Morris
9110f40b7d sigalarm 2019-08-02 13:18:26 -04:00
Frans Kaashoek
7510ac70e5 Combine the linux mmap hw with memory-mapped files in xv6 into a separate lab 2019-08-02 13:07:21 -04:00
Robert Morris
0c10cbe829 syscall lab nits 2019-08-02 11:55:26 -04:00
Frans Kaashoek
0c3125b9eb Add uthread 2019-08-02 08:52:36 -04:00
Frans Kaashoek
b02ef59e14 x 2019-08-01 16:52:38 -04:00
Frans Kaashoek
62ece4b09e Merge branch 'riscv-bcache' into riscv 2019-08-01 15:46:50 -04:00
Robert Morris
fb8a0099d4 fences for starting 2019-08-01 14:59:20 -04:00
Frans Kaashoek
77da01abb1 First draft of text for mmap assignment. 2019-08-01 07:56:39 -04:00
Robert Morris
d600026c3f cut ramdisk 2019-07-30 16:06:00 -04:00
Frans Kaashoek
b70cd9ebd7 Import big file assignment. 2019-07-30 14:33:09 -04:00