Frans Kaashoek
0502342335
Merge pull request #9 from d0iasm/riscv
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update initcode to avoid using the compressed extension
2020-08-10 13:54:58 -04:00
Frans Kaashoek
93ca5550b8
Merge pull request #10 from takahirox/VirtioInterruptAck
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Write virtio interrupt ack register in virtio_disk_intr()
2020-08-10 13:24:57 -04:00
Frans Kaashoek
d28c5d9837
Merge pull request #6 from jrrk2/riscv
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Update ramdisk.c
2020-08-10 13:14:14 -04:00
Frans Kaashoek
c31d35d803
Merge branch 'riscv' into riscv
2020-08-10 13:05:17 -04:00
Robert Morris
e3b7058907
streamline copyin/copyout code in usertests
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fix bugs in read/write return values when there's an error
2020-08-10 11:19:10 -04:00
Frans Kaashoek
1f555198d6
Change tf -> trapframe in a few comments
2020-08-10 11:19:10 -04:00
Robert Morris
7f35d7a14e
modify each page in usertests countfree()
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get rid of static for walk() and freewalk()
2020-08-10 11:19:10 -04:00
Robert Morris
2ae9c8e272
defines for UART register bits
2020-08-10 11:19:10 -04:00
Robert Morris
0f50e9527c
fix printf() in interrupts
2020-08-10 11:19:10 -04:00
Robert Morris
27057bc9b4
interrupt-driven uart output, hopefully a nice example for teaching.
2020-08-10 11:19:10 -04:00
Robert Morris
1e72d5ca08
cpu->scheduler -> cpu->context to reduce confusion
2020-08-10 11:19:10 -04:00
Robert Morris
5494c91705
rename p->tf to p->trapframe, for consistency with p->context
2020-08-10 11:19:10 -04:00
Robert Morris
af9eb9114c
make "echo hello > x" truncate file x.
2020-08-10 11:19:10 -04:00
Takahiro
7a5fcb28b3
Write interrupt ack register in virtio_disk_intr()
2020-04-18 14:49:54 -07:00
Asami Doi
8b052656a0
update initcode to avoid using the compressed extension
2020-03-20 12:33:32 +09:00
Jonathan Kimmitt
2b040aa379
Update ramdisk.c
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The qemu syntax for a ram disk was documented incorrectly. The documented syntax is here:
https://qemu.weilnetz.de/doc/qemu-doc.html
2020-01-16 15:05:27 +00:00
Robert Morris
028af27646
mention LRU list a bit more in comments.
2019-10-29 04:32:55 -04:00
Robert Morris
e7ffb74ad1
fix a potential memory leak
2019-10-27 13:36:46 -04:00
Robert Morris
d9160fb4b9
nits
2019-10-27 08:03:19 -04:00
Anish Athalye
f2ab0eb644
Clean up linker script
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This patch does the following:
- Add .text.* to the .text section in the output
- Add an assertion that the trampoline does not overflow a page
- Add the .rodata section
- Make .sdata and .sdata.* (which is for small data) be absorbed into
the .data section, because we don't need to distinguish between them;
this prevents .sdata from appearing in the output
- Make the analogous change for .srodata and .sbss
- Make all the data sections 16-byte aligned
This patch also updates the .editorconfig for *.ld files.
2019-10-21 22:27:18 -04:00
Fumiya Shigemitsu
90eb90b5e2
Fix minor typos
2019-10-21 21:01:07 +09:00
Robert Morris
2821d43cc9
nits
2019-10-16 12:27:08 -04:00
Robert Morris
56583b1402
updated alarmtest
2019-10-03 15:02:19 -04:00
Robert Morris
deaff5d8a6
no buf->qnext
2019-09-24 14:41:51 -04:00
Xi Wang
9ead904afe
fix major validation
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fileread/filewrite should validate major to avoid buffer overflows
or bogus function pointers.
2019-09-23 20:01:56 -04:00
Robert Morris
37df68e5de
story is more complex than I thought.
2019-09-23 07:24:41 -04:00
Robert Morris
d175beadf5
bug fix: reparent() sometimes deadlocked
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bug fix: exit() sometimes released a different parent lock than it acquired
usertests
2019-09-23 06:50:25 -04:00
Robert Morris
d940fd122d
don't leak memory if exec() arguments are invalid.
2019-09-21 04:54:25 -04:00
Robert Morris
7c7ed20822
don't leak a file system block if the buf argument to write is invalid
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and a usertest
2019-09-20 13:09:26 -04:00
Robert Morris
e1a37303c8
yet another sbrk() bug fix, and usertest
2019-09-20 12:13:57 -04:00
Robert Morris
4de161f973
don't panic if a program frees all its memory with sbrk().
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if a program sbrk()'s to a non-page-boundary, don't free that page.
corresponding usertests.
2019-09-20 11:35:27 -04:00
Robert Morris
ca30cac702
more incorrect cast to uint
2019-09-20 10:27:03 -04:00
Robert Morris
402e7b5605
fix a potential kernel crash
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add a regression test for it
2019-09-20 09:41:03 -04:00
Robert Morris
57e40a0204
nits
2019-09-20 06:02:47 -04:00
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
Frans Kaashoek
7e6c37e67e
Support exit status for exit/wait
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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
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
Frans Kaashoek
510bcde894
Add major/minor/mkdev
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Maybe apply this change to master
2019-08-23 19:41:53 -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
Frans Kaashoek
21ad8c76bc
A few now unused DOC
2019-08-19 18:12:19 -04:00
Frans Kaashoek
e10f797762
Merge remote-tracking branch 'origin/master' into riscv
2019-08-19 13:35:47 -04:00
Frans Kaashoek
2501560cd6
Cosmetic cleanup: fsinit reads sb and calls loginit. initialize icache
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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
