Age | Commit message (Collapse) | Author | Files | Lines | |
---|---|---|---|---|---|
2007-08-28 | nits | rsc | 1 | -1/+1 | |
2007-08-28 | rename 8253pit.c to timer.c | rsc | 1 | -2/+2 | |
2007-08-28 | nit | rsc | 1 | -1/+1 | |
2007-08-28 | nit | rsc | 1 | -6/+4 | |
2007-08-27 | Rename main0 to main. | rsc | 1 | -2/+2 | |
2007-08-27 | delete unnecessary #include lines | rsc | 1 | -11/+3 | |
2007-08-27 | Simplify MP hardware code. | rsc | 1 | -3/+31 | |
Mainly delete unused constants and code. Move mp_startthem to main.c as bootothers. | |||||
2007-08-27 | Clean up lapic code. | rsc | 1 | -7/+1 | |
One initialization function now, not three. Use #defines instead of enums (consistent with other code, but sigh). Still boots in Bochs in SMP mode. | |||||
2007-08-24 | tweak | rsc | 1 | -7/+3 | |
2007-08-22 | PDF at http://am.lcs.mit.edu/~rsc/xv6.pdf | rsc | 1 | -61/+21 | |
Various changes made while offline. + bwrite sector argument is redundant; use b->sector. + reformatting of files for nicer PDF page breaks + distinguish between locked, unlocked inodes in type signatures + change FD_FILE to FD_INODE + move userinit (nee proc0init) to proc.c + move ROOTDEV to param.h + always parenthesize sizeof argument | |||||
2007-08-21 | remove dead code | rsc | 1 | -16/+0 | |
2007-08-21 | Various cleanup: | rsc | 1 | -80/+40 | |
- Got rid of dummy proc[0]. Now proc[0] is init. - Added initcode.S to exec /init, so that /init is just a regular binary. - Moved exec out of sysfile to exec.c - Moved code dealing with fs guts (like struct inode) from sysfile.c to fs.c. Code dealing with system call arguments stays in sysfile.c - Refactored directory routines in fs.c; should be simpler. - Changed iget to return *unlocked* inode structure. This solves the lookup-then-use race in namei without introducing deadlocks. It also enabled getting rid of the dummy proc[0]. | |||||
2007-08-20 | shuffle fs.c in bottom-up order | rsc | 1 | -1/+1 | |
2007-08-14 | Gcc expects to be able to pick up the return | rsc | 1 | -4/+11 | |
address off the stack, so put one there for it. (Bug was hidden by bad segment limits.) | |||||
2007-08-10 | avoid assignments in declarations | rsc | 1 | -2/+2 | |
2007-08-08 | missing void | rsc | 1 | -1/+1 | |
2007-08-08 | more bugs | rsc | 1 | -3/+3 | |
2007-08-08 | add DPL_USER constant | rsc | 1 | -2/+2 | |
2007-08-08 | set init name | rsc | 1 | -0/+1 | |
2006-09-08 | formatting nits | rsc | 1 | -3/+6 | |
2006-09-08 | only need a page | rsc | 1 | -1/+1 | |
2006-09-08 | use bootstrap processor as specified by MP table. typically 0, but not | kaashoek | 1 | -5/+7 | |
guaranteed. | |||||
2006-09-08 | some comment changes | kaashoek | 1 | -2/+2 | |
2006-09-07 | fix build | rsc | 1 | -4/+4 | |
2006-09-07 | get precedence of <, >, and | right | kaashoek | 1 | -1/+1 | |
simplify | |||||
2006-09-07 | run without lapic and ioapic, if they are not present | kaashoek | 1 | -2/+5 | |
if no lapic available, use 8253pit for clock now xv6 runs both on qemu (uniprocessor) and bochs (uniprocessor and MP) | |||||
2006-09-06 | fd_* => file_* | rsc | 1 | -1/+1 | |
2006-09-06 | standardize various * conventions | rsc | 1 | -7/+7 | |
2006-09-06 | spacing fixes: no tabs, 2-space indents (for rtm) | rsc | 1 | -1/+1 | |
2006-08-29 | prune unneeded panics and debug output | rtm | 1 | -26/+19 | |
2006-08-29 | clean up stale error checks and panics | rtm | 1 | -4/+0 | |
delete unused functions a few comments | |||||
2006-08-16 | proc[0] can sleep(), at least after it gets to main00() | rtm | 1 | -18/+43 | |
proc[0] calls iget(rootdev, 1) before forking init | |||||
2006-08-15 | no more proc[] entry per cpu for idle loop | rtm | 1 | -12/+11 | |
each cpu[] has its own gdt and tss no per-proc gdt or tss, re-write cpu's in scheduler (you win, cliff) main0() switches to cpu[0].mpstack | |||||
2006-08-15 | oops | kaashoek | 1 | -1/+1 | |
2006-08-15 | commented out code for cwd | kaashoek | 1 | -2/+5 | |
2006-08-13 | link() | rtm | 1 | -6/+0 | |
2006-08-11 | init creates console, opens 0/1/2, runs sh | rtm | 1 | -4/+4 | |
sh accepts 0-argument commands (like userfs) reads from console | |||||
2006-08-10 | interrupts could be recursive since lapic_eoi() called before rti | rtm | 1 | -5/+13 | |
so fast interrupts overflow the kernel stack fix: cli() before lapic_eoi() | |||||
2006-08-10 | low-level keyboard input (not hooked up to /dev yet) | rtm | 1 | -1/+1 | |
fix acquire() to cli() *before* incrementing nlock make T_SYSCALL a trap gate, not an interrupt gate sadly, various crashes if you hold down a keyboard key... | |||||
2006-08-09 | devsw | kaashoek | 1 | -0/+1 | |
checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works | |||||
2006-08-08 | fix race in holding() check in acquire() | rtm | 1 | -12/+23 | |
give cpu1 a TSS and gdt for when it enters scheduler() and a pseudo proc[] entry for each cpu cpu0 waits for each other cpu to start up read() for files | |||||
2006-08-04 | better interrupt plan---this one appears to work | kaashoek | 1 | -0/+1 | |
ioapic | |||||
2006-07-29 | open() | rtm | 1 | -0/+2 | |
2006-07-27 | primitive exec | rtm | 1 | -0/+1 | |
2006-07-20 | uint32_t -> uint &c | rtm | 1 | -7/+7 | |
2006-07-17 | standarize on unix-like lowercase struct names | rsc | 1 | -6/+6 | |
2006-07-17 | add uint and standardize on typedefs instead of unsigned | rsc | 1 | -3/+3 | |
2006-07-16 | various little fixes that should have been in earlier checkins | rsc | 1 | -2/+0 | |
2006-07-16 | fix main return type | rsc | 1 | -3/+6 | |
2006-07-16 | Keep interrupts disabled during startup. | rsc | 1 | -16/+27 | |