Frans Kaashoek
3a5fa7ed90
Introduce and use sleeplocks instead of BUSY flags
...
Remove I_BUSY, B_BUSY, and intrans defs and usages
One spinlock per buf to avoid ugly loop in bget
fix race in filewrite (don't update f->off after releasing lock)
2011-08-26 10:08:29 -04:00
Frans Kaashoek
8a9b6dbd44
Make cross reference with text work
2011-08-25 14:39:09 -04:00
Frans Kaashoek
6f2327580f
Eliminate USERTOP; no use for it.
2011-08-24 10:24:40 -04:00
Frans Kaashoek
194f8bf739
A comment
2011-08-22 20:07:18 -04:00
Frans Kaashoek
d10d324e79
Remove sys_init syscall
...
Invoke initlog from forkret on first user process
2011-08-22 20:05:15 -04:00
Frans Kaashoek
39f8cc56d3
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2011-08-21 21:14:42 -04:00
Frans Kaashoek
3682474f77
delete dead code
2011-08-21 21:14:29 -04:00
Robert Morris
327cc21fba
make dirlookup and dirlink more similar
2011-08-19 13:30:57 -04:00
Frans Kaashoek
cd3d739e6f
bootloader reads into a physical address (not a virtual address)
2011-08-17 20:52:28 -04:00
Frans Kaashoek
fa81545f1c
Make elf proghdr fields match what objdump prints
2011-08-17 20:23:36 -04:00
Frans Kaashoek
5f069dcf2f
Switch back to #define for PHYSTOP. Using the E820 to retrieve the memory map is too complicated (must be done in 16-bit real-mode, probably enlarged bootblock beyond 512 bytes, and a #define requires less explanation).
2011-08-16 20:23:17 -04:00
Frans Kaashoek
c3dcf47966
Clean up memlayout.h
...
Get rid of last instances of linear address and "la"
Get ready for detecting physical memory dynamically
2011-08-16 15:47:22 -04:00
Frans Kaashoek
427958cb71
Update make clean
2011-08-15 20:32:04 -04:00
Frans Kaashoek
eeea49e8d5
Update list of files to include in printout
2011-08-15 20:28:28 -04:00
Frans Kaashoek
d9818bdd7d
Make Austin happier
...
2011
2011-08-15 20:21:14 -04:00
Frans Kaashoek
a4b213cf49
Avoid "boot" in xv6
2011-08-15 20:11:13 -04:00
Frans Kaashoek
9449646853
Use 4Mbyte pages during boot
2011-08-15 17:41:58 -04:00
Austin Clements
843eecfcd0
Only commit log to disk if something was written in to it.
...
Without this, every write to the console results in log writes.
2011-08-15 14:12:35 -04:00
Robert Morris
7f1718ca33
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2011-08-15 12:44:41 -04:00
Robert Morris
5053dd6a6d
avoid deadlock by calling begin_trans() before locking any inodes
2011-08-15 12:44:20 -04:00
Frans Kaashoek
c60a3551c2
Separate more clearly bootloader from xv6 by renaming multiboot.S to entry.S etc.
...
Maybe the string boot shouldn't appear in xv6 code?
2011-08-15 12:02:59 -04:00
Frans Kaashoek
c95ce31c59
Oops
2011-08-12 12:02:17 -04:00
Robert Morris
e0d1ba0d74
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2011-08-12 09:26:23 -04:00
Robert Morris
2e59046362
log write() data
...
usertest for big write()s
push begin_trans/commit_trans down into syscalls
2011-08-12 09:25:39 -04:00
Frans Kaashoek
e577a62f0d
Some comments
2011-08-12 07:31:52 -04:00
Frans Kaashoek
bd71a45046
Make AP processors boot using bootpgdir
...
Remove device mapping from bootpgdir
Remove unnecessary vmenable
Set CPUS back to 2 in Makefile
Passes all usertests
2011-08-11 12:25:10 -04:00
Frans Kaashoek
673b739d31
One more low address
2011-08-09 23:22:48 -04:00
Frans Kaashoek
8a9933a200
Tiny bit of cleanup
2011-08-09 21:56:43 -04:00
Frans Kaashoek
22c73411ca
Shorten boot assembly
2011-08-09 21:51:17 -04:00
Frans Kaashoek
5460667c9c
x
2011-08-09 21:49:13 -04:00
Frans Kaashoek
832af025a3
Remove jmpkstack
2011-08-09 21:47:40 -04:00
Frans Kaashoek
66ba8079c7
Use static page table for boot, mapping first 4Mbyte; no more segment trick
...
Allocate proper kernel page table immediately in main using boot allocator
Remove pginit
Simplify address space layout a tiny bit
More to come (e.g., superpages to simplify static table)
2011-08-09 21:37:35 -04:00
Frans Kaashoek
3a03810643
Use kernel virtual addresses for BIOS memory, etc.
2011-08-09 21:33:59 -04:00
Frans Kaashoek
b23d8329e7
Allow gas to use / as divide (instead of comment)
...
Maybe not necessary, but don't want to waste time figuring this out again
2011-08-09 16:09:15 -04:00
Frans Kaashoek
a56c8d609b
One definition of several macros and constants
2011-08-08 13:30:08 -04:00
Frans Kaashoek
11b7438b10
Speedup sbrk tst a bit (forking 100Mbyte processes is slow)
2011-08-08 09:20:29 -04:00
Frans Kaashoek
6479766334
Adjust sbrk test for large user address spaces
...
All tests pass
2011-08-07 23:03:48 -04:00
Frans Kaashoek
67d4254d15
oops
2011-08-07 12:30:34 -04:00
Frans Kaashoek
547c28fc1e
Don't map IO space in the user part of the address space
...
Passes all tests now (but need to update usertests to allow for more than 640k)
2011-07-31 21:27:02 -04:00
Frans Kaashoek
9aa0337dc1
Map kernel high
...
Very important to give qemu memory through PHYSTOP :(
2011-07-29 07:31:27 -04:00
Frans Kaashoek
dccb915282
Merge commit 'origin/master' into page
2011-07-27 20:49:45 -04:00
Frans Kaashoek
13a96baefc
Dirt simple logging
...
Passes usertests and stressfs
Seems to recover correctly in a number of simple cases
2011-07-27 20:35:46 -04:00
Austin Clements
97657d703f
Add -fno-omit-frame-pointer to compile flags.
...
At some point between gcc 4.4 and 4.6, omitting the frame pointer
became default if any -O is specified. getcallerpcs relies on the
frame pointer, so bring it back.
2011-06-24 14:22:19 -04:00
Nickolai Zeldovich
96b7da5f03
do not run past the end of the disk!
...
[ cherry-picked de6075ff0978108daea1d658425bcb37663a98a0 ]
Conflicts:
fs.c
2011-06-24 05:26:57 -04:00
Frans Kaashoek
f70ef994dc
Russ's fix for panic remap
2011-04-28 08:01:36 -04:00
Russ Cox
ae603ff5e7
rebuild xv6-rev5.tar.gz
...
does not affect line numbers
2011-02-28 09:32:54 -05:00
Russ Cox
c5f5387351
fixes from Peter Froehlich
2011-02-28 09:32:20 -05:00
Russ Cox
a6cd7509c4
web: rev5
2011-02-19 21:21:49 -05:00
Russ Cox
688b5c03dd
updated book pdfs
2011-02-19 21:19:58 -05:00
Russ Cox
cf4b1ad90b
xv6: formatting, cleanup, rev5 (take 2)
2011-02-19 21:17:55 -05:00
