sanchayanmaity/xv6-cs450
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Author SHA1 Message Date
Austin Clements
82bb0b56c6 bootother -> entryother in README 2011-09-02 14:00:33 -04:00
Austin Clements
052e18485d Skip missing page directories in deallocuvm 
Previously, deallocuvm scanned from 0 to KERNBASE in one page
increments, which had a noticable effect on boot time.  Now it skips
over missing page directories.
 2011-09-01 21:29:09 -04:00
Robert Morris
1eadf4a8fc Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 2011-09-01 13:26:03 -04:00
Robert Morris
371ab7fa96 inaccessible page under the user stack page, to help exec deal w/ too-large args 2011-09-01 13:25:34 -04:00
Frans Kaashoek
6bb9221395 Fix layout 2011-09-01 13:18:02 -04:00
Frans Kaashoek
e04329aae8 Have one definition of kernel stack size 2011-09-01 12:18:43 -04:00
Robert Morris
62e3b8a92c Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 
Conflicts:
	vm.c
 2011-09-01 12:03:49 -04:00
Robert Morris
5a23692444 fix usertests to correctly test what happens when you call 
exec() with arguments that don't fit on a single page.
 2011-09-01 12:02:49 -04:00
Austin Clements
d0f3efca65 Use stosl in memset; makes boot time bearable 2011-09-01 10:41:27 -04:00
Frans Kaashoek
e25b74ca80 Fix layout issues for printed version 2011-09-01 10:25:20 -04:00
Robert Morris
15997d5849 move the kernel to 0x80000000 2011-08-31 09:48:52 -04:00
Robert Morris
5c292b3d71 simplify the end of entry.S 2011-08-31 05:38:05 -04:00
Robert Morris
5e08357827 enterpgdir -> entrypgdir 2011-08-30 20:50:19 -04:00
Frans Kaashoek
1ddfbbb194 Revert "Introduce and use sleeplocks instead of BUSY flags" 
My changes have a race with re-used bufs and the code doesn't seem to get shorter
Keep the changes that fixed ip->off race

This reverts commit 3a5fa7ed90.

Conflicts:

	defs.h
	file.c
	file.h
 2011-08-29 17:18:40 -04:00
Austin Clements
22f7db5336 Renumber I_VALID since I_BUSY is gone 2011-08-29 16:14:44 -04:00
Austin Clements
920b7b44b5 dir-locals.el to set style in Emacs 2011-08-29 16:12:17 -04:00
Austin Clements
a7061b4f97 Style nits; indentation and tabs 2011-08-29 16:12:01 -04:00
Frans Kaashoek
16f205b5c9 Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 2011-08-26 10:10:37 -04:00
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
Robert Morris
41911afa45 segment register -> segment descriptor 2011-08-26 06:47:13 -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