Robert Morris
46744c4a13
for spinlocks, use gcc intrinsics, but say what they compile to
2019-06-13 10:00:50 -04:00
Robert Morris
ca39672a30
clean up virtio code
2019-06-13 09:40:17 -04:00
Robert Morris
4adf016925
eliminate ramdisk
2019-06-13 06:57:38 -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
Robert Morris
91ba81110a
gdb backtraces: -ggdb, -fno-omit-frame-pointer, BSIZE=1024
2019-06-06 13:54:03 -04:00
Robert Morris
8607051b5f
fix a create()/unlink() deadlock
2019-06-06 10:38:11 -04:00
Robert Morris
31ef85f552
add plic.c
2019-06-06 05:19:59 -04:00
Robert Morris
b05bcce939
add kernelvec
2019-06-06 05:19:35 -04:00
Robert Morris
dff7ab3f8f
make -O work with asm volatile(...)
2019-06-05 15:05:56 -04:00
Robert Morris
5684556c19
clean up -Wall
2019-06-05 14:31:13 -04:00
Robert Morris
5eb1cb4972
push_off() and pop_off() in myproc()
2019-06-05 14:14:57 -04:00
Robert Morris
3113643768
spinlocks using gcc intrinsics
...
push_off() / pop_off()
set up per-hart plic stuff so all harts get device interrupts
2019-06-05 14:05:46 -04:00
Robert Morris
f1a727b971
start at support for multiple CPUs
2019-06-05 11:42:03 -04:00
Robert Morris
ec3d3a1fce
yield if timer interrupt
...
all user tests passed
2019-06-04 14:25:48 -04:00
Robert Morris
a82772594e
timer interrupts -> supervisor software interrupt
2019-06-04 14:20:37 -04:00
Robert Morris
cff3ce6e04
more sbrk fixes
2019-06-04 11:31:50 -04:00
Robert Morris
0e131b2263
fix a problem with end. make uartputc() wait until h/w is ready.
2019-06-04 10:43:45 -04:00
Robert Morris
b78894f34e
check that arguments aren't more than a page in exec()
2019-06-04 06:51:01 -04:00
Robert Morris
0f684b9150
fix exec argc
2019-06-04 06:45:09 -04:00
Robert Morris
8baac76050
support read() and write() bigger than one page
2019-06-04 05:57:47 -04:00
Robert Morris
cefe223bf5
console input and sbrk
2019-06-03 17:59:17 -04:00
Robert Morris
efecbee7c0
xx
2019-06-03 17:49:27 -04:00
Robert Morris
6eae1be755
push/pop all registers when handling interrupt from kernel
2019-06-03 15:23:12 -04:00
Robert Morris
e630e0743b
xx
2019-06-03 14:16:51 -04:00
Robert Morris
a9c1a6f742
takes one uart input interrupt, then panics
2019-06-03 14:13:07 -04:00
Robert Morris
50cbc75102
first shell prints $ prompt, though no console input yet
2019-06-01 05:33:38 -04:00
Robert Morris
7fd1f1eb0a
exec compiles but argstr() doesn't work yet
2019-05-31 12:43:20 -04:00
Robert Morris
5d34fa2a48
-initrd fs.img, ramdisk.c, file system
2019-05-31 11:45:42 -04:00
Robert Morris
2ec1959fd1
fork/wait/exit work
2019-05-31 09:45:59 -04:00
Frans Kaashoek
0f90388c89
No T_SYSCALL
2018-10-10 21:50:58 -04:00
Frans Kaashoek
a7ca32e3a3
Change mycpu() to use %gs.
2018-10-09 20:22:48 -04:00
Frans Kaashoek
821ee3fc99
not much
2018-10-09 19:33:06 -04:00
Frans Kaashoek
54e6f829e4
Separate system call path from trap path. Passes usertests on 1 and 2 cpus.
2018-10-09 14:28:54 -04:00
Frans Kaashoek
f241e67d91
x
2018-10-07 18:14:53 -04:00
Frans Kaashoek
704775b63d
Make names line up with text
2018-10-04 09:21:36 -04:00
Frans Kaashoek
2fa3a8fd05
Oops, didn't commit these changes with last commit
2018-10-04 09:21:10 -04:00
Frans Kaashoek
a7ef9a40c4
x
2018-10-03 21:00:32 -04:00
Frans Kaashoek
7ccc5f5f4f
Names of text are better.
2018-10-03 20:14:36 -04:00
Frans Kaashoek
eb72653bd7
use x86-64 names
2018-10-03 18:13:51 -04:00
Frans Kaashoek
23a58370a4
Switch back bpmain back to main
2018-10-03 17:58:21 -04:00
Frans Kaashoek
020fc6a1c6
don't care about bootloader
2018-10-03 07:53:37 -04:00
Frans Kaashoek
343080f7ae
Remove unused typedefs
2018-10-02 09:06:41 -04:00
Frans Kaashoek
ec110149ed
simplify layout pic
2018-10-02 08:50:05 -04:00
Frans Kaashoek
a0389f707f
Remove now unused PDX
2018-10-02 08:43:25 -04:00
Frans Kaashoek
d448fd5e6c
Simplify by freeing user part of addres pace in one page increments. This
...
undoes commit ffe444 and 052e18, which skipped page directories, but was
tailored to two-level page table. Undoing doesn't seem to affect boottime for
xv6 visibly.
2018-10-02 08:40:01 -04:00
Frans Kaashoek
a42b7d5dbb
Simplify freeing page table
2018-10-02 08:12:01 -04:00
Frans Kaashoek
155c13b7f8
Avoid repition in walkpgdir
2018-10-02 07:37:49 -04:00
Frans Kaashoek
572e106e6f
x
2018-09-29 09:05:25 -04:00
Frans Kaashoek
3bfcaeaf01
Make sysexit and trapret paths the same, so that forkret can return through
...
either path. This helped tracking down a bug: use 144 instead of 32 to find cs
in trapframe so that gs is correctly saved and restored.
For good measure update linker script, because newer versions of GCC sometimes
places symbols passed end.
2018-09-29 08:34:41 -04:00
