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  • 887f19686c bootasm cleanup Russ Cox 2009-07-11 19:15:32 -0700
  • 8b75366ce4 s/IRQ_OFFSET/T_IRQ0/: it's a trap number, not an irq number. move the SYSCALL number up, so does not overlap the IRQ traps. Russ Cox 2009-07-11 18:17:32 -0700
  • 27ff8f0e6f compile fixes rsc 2009-05-31 05:13:51 +0000
  • 34295f461a group locks into structs they protect. few naming nits. rsc 2009-05-31 05:12:21 +0000
  • 949e55902b usys.S: put before init.c, STUB -> SYSCALL rsc 2009-05-31 02:14:04 +0000
  • 90bab90832 exec sanity check rsc 2009-05-31 02:11:27 +0000
  • f3685aa391 simplify rsc 2009-05-31 02:07:51 +0000
  • 7f399ccaa4 use ftable like btable and itable rsc 2009-05-31 02:07:26 +0000
  • ce72cadbe0 fix bug fix rsc 2009-05-31 01:53:08 +0000
  • 13ae8808c4 tidy fs.c; bmap callers always expected allocation rsc 2009-05-31 01:44:20 +0000
  • f12551b599 inode reuse bug. rsc 2009-05-31 01:34:46 +0000
  • 0badeaa29f bio.c: use struct like icache does rsc 2009-05-31 01:29:17 +0000
  • c47bc4fd54 ide.c: make names more regular rsc 2009-05-31 01:29:01 +0000
  • 7b644318dd clean up %fs %gs use rsc 2009-05-31 01:12:08 +0000
  • e97519a6d2 sync with c; .text is implied rsc 2009-05-31 01:00:38 +0000
  • ba6cd8a685 drop NADDRS and INDIRECT; too many names rsc 2009-05-31 00:59:37 +0000
  • 030a47736f tab police rsc 2009-05-31 00:39:17 +0000
  • 215738336a move fork into proc.c rsc 2009-05-31 00:38:51 +0000
  • dae9b0d48a missed this file in last checkin rsc 2009-05-31 00:31:20 +0000
  • 19333efb9e Some proc cleanup, moving some of copyproc into allocproc. rsc 2009-05-31 00:28:45 +0000
  • 0c7f483838 move T_DIR etc into stat.h; move type up rsc 2009-05-31 00:26:10 +0000
  • 74afa70d30 Add serial port input/output. Delete parallel port output. Works well with qemu -nographic mode. rsc 2009-05-31 00:24:11 +0000
  • 0ca9ca0c55 slight rearrangement; sleep on b not buf. rsc 2009-05-31 00:23:00 +0000
  • d827c8f3c8 Add MIT license file; update xv6-rev2.tar.gz with LICENSE. Other files unchanged. rsc 2009-05-26 16:58:33 +0000
  • 2157576107 be consistent: no underscores in function names rsc 2009-03-08 22:07:13 +0000
  • b7f653dc49 xv6: boot loader adjustments rsc 2009-03-08 21:41:30 +0000
  • 8220135362 xv6: use stosb for memset rsc 2009-03-08 21:38:30 +0000
  • c396d065d3 xv6/x86.h: add stosb, fix bugs in insl/outsl (rep not repne) rsc 2009-03-08 21:27:57 +0000
  • 4003e9bed8 xv6/x86.h: inline assembly cleanup rsc 2009-03-08 20:56:38 +0000
  • 8eb20827c2 Explain why itrunc() is OK w.r.t. crashes. rtm 2008-10-20 18:05:48 +0000
  • 15a2693637 try harder to get directory refcounts right kolya 2008-10-17 12:42:13 +0000
  • f3e87bc838 make mkdir crash-safer, as noticed by many students on midterm kolya 2008-10-16 15:18:49 +0000
  • e1626709d6 free the indirect block kolya 2008-10-16 15:00:23 +0000
  • e670a48358 as rtm noticed, avoid doubly-freeing pipe page kolya 2008-10-15 17:42:56 +0000
  • deca9fef83 indent kolya 2008-10-15 05:15:32 +0000
  • c100d9ee2d cleaner swtch.S kolya 2008-10-15 05:14:10 +0000
  • 228e500a0c save cpus.intena in sched(), so we get the right EFLAGS.IF value once a timer-preempted kernel thread resumes execution in trap() after yield(). otherwise the kernel could get an arbitrary number of nested timer intrs. kolya 2008-10-15 05:01:39 +0000
  • 15ce79de14 check cp->killed before returning to user from a timer interrupt kolya 2008-10-15 04:57:02 +0000
  • 00ce31c09c update .cvsignore kolya 2008-10-15 04:54:24 +0000
  • 289bbef733 minor cleanup kolya 2008-10-12 20:19:16 +0000
  • f73b81205e minor cleanup with STUB macro kolya 2008-10-12 19:54:11 +0000
  • c780dbf967 include explicitly initialized globals (int x = 0;) in cross-refs, also thanks to greg price. kolya 2008-10-12 18:45:30 +0000
  • 6186836d28 fix: when two names only differed in case, crossrefs only included one of them. thanks to greg price. kolya 2008-10-12 18:33:14 +0000
  • 2ce40d7088 be clear what the root i-number is rtm 2008-10-08 18:57:13 +0000
  • be38c8413e document lock->locked=0 vs xchg(&lock->locked, 0) rtm 2008-09-28 10:53:54 +0000
  • 0159c8bb94 trap 9 does not push ec: fix from Greg Price <price@mit.edu> kolya 2008-09-24 18:20:56 +0000
  • c7317d4dc7 always save and restore %fs, %gs to ensure old segment entries are never accessible to user from the hidden CPU segment registers. kolya 2008-09-24 01:48:31 +0000
  • adcd16c3f7 restore std toolprefix rtm 2008-09-11 10:22:01 +0000
  • 4651d04ad1 omit *.d from tar file rtm 2008-09-11 10:20:40 +0000
  • e9ae6f5cbe add copyright notice kaashoek 2008-09-09 11:42:44 +0000
  • f68317533e make bochsrc work for bochs 2.2.6 kolya 2008-09-03 14:10:47 +0000
  • 35a6cf84ec make pdf, ps, tarball kolya 2008-09-03 14:05:52 +0000
  • e87dca5cc5 nits in index.txt add slides for shell, x86 intro, x86 virtual memory (deleted JOS from slides) kaashoek 2008-09-03 12:29:44 +0000
  • f53494c28e DO NOT MAIL: xv6 web pages rsc 2008-09-03 04:50:04 +0000
  • ee3f75f229 simplify growproc rtm 2008-08-28 17:57:47 +0000
  • 98754d687e avoid a bug w/ exit() rtm 2008-08-28 00:53:24 +0000
  • 56082468ea the old explanation of AP startup might have been correct, but I understand this one. rtm 2008-08-28 00:52:05 +0000
  • 02cc595f28 clean up circular buffers, so pipe can queue 512 bytes rather than 511 kolya 2008-08-22 00:26:22 +0000
  • 5c5470a2fa fix obvious printf nits after reading through code kolya 2008-08-21 23:24:02 +0000
  • 1808b2f1b3 now rev2 rsc 2008-08-20 18:00:35 +0000
  • 150785a1fd add nice font rsc 2008-08-20 18:00:24 +0000
  • 9b62657ecd formatting updates rsc 2008-08-20 18:00:13 +0000
  • 5b7f8cbe7c bochs faster rsc 2008-08-20 17:59:29 +0000
  • 174729fc55 xv6: latest (as of January 2008) rsc 2008-08-20 17:46:32 +0000
  • eadbd55af2 oops - wrong bit (vic zandy) rsc 2007-12-20 18:27:07 +0000
  • c2258bf4d2 fork minibug rsc 2007-11-28 20:47:22 +0000
  • 4f06ae0d42 More complete lapic startup (thanks Silas) rsc 2007-11-28 20:47:10 +0000
  • a6c4711a38 bda[0xE] is a 16-bit segment number, not a real address. So shift 4. rsc 2007-11-28 20:17:04 +0000
  • fd6b029401 proc_wait -> wait rtm 2007-10-20 18:25:38 +0000
  • 949352af66 Model verifying that wakeup really can be called after release without causing deadlock. rsc 2007-10-12 04:21:04 +0000
  • 943fd378a1 Incorporate new understanding of/with Intel SMP spec. rsc 2007-10-01 20:43:15 +0000
  • 9fd9f80431 Re: why cpuid() in locking code? rsc 2007-09-30 14:30:04 +0000
  • c840f3ecdc tricks rsc 2007-09-30 14:20:47 +0000
  • af7366c945 interrupts during system calls rsc 2007-09-27 21:37:45 +0000
  • ab08960f64 Final word on the locking fiasco? rsc 2007-09-27 21:25:37 +0000
  • f97f0d2b3d cleaner rsc 2007-09-27 21:02:03 +0000
  • c95bde8163 yank out stack overflow checking ugliness rsc 2007-09-27 20:38:53 +0000
  • 4f74de0edc okay, that was long enough - revert rsc 2007-09-27 20:32:45 +0000
  • ce2e751555 test: store curproc at top of stack rsc 2007-09-27 20:29:50 +0000
  • aefc13f8ba nit rsc 2007-09-27 20:25:32 +0000
  • 3807c1f20b rename splhi/spllo to pushcli/popcli rsc 2007-09-27 20:09:40 +0000
  • 39c3fb1b15 overkill: use segments to catch stack overflow (delete before next year) rsc 2007-09-27 19:39:10 +0000
  • 8c8b748a2f now spllo is okay rsc 2007-09-27 19:35:25 +0000
  • b5dcebdbeb better lapic writes, suggested by cliff rsc 2007-09-27 19:33:46 +0000
  • 4721271961 use larger, allocated cpu stacks rsc 2007-09-27 19:32:43 +0000
  • 0fe118f3f6 don't call it ss - that's the stack segment rsc 2007-09-27 16:47:50 +0000
  • c8919e6537 kernel SMP interruptibility fixes. rsc 2007-09-27 12:58:42 +0000
  • 75506c6655 use console lock rsc 2007-09-27 12:29:25 +0000
  • d522571068 make slow bigdir last test rsc 2007-09-27 12:29:06 +0000
  • ad12b487b5 changes since two days ago: rsc 2007-09-27 11:27:04 +0000
  • b30ab3f5af use standard bios location rsc 2007-09-27 05:14:25 +0000
  • 666f58c711 believe it or not, this was working rsc 2007-09-27 05:13:10 +0000
  • 90d975e9c8 comment bochs nonsense rsc 2007-09-26 23:32:47 +0000
  • fbaa7b428e various comment and print tweaks rsc 2007-09-26 23:32:00 +0000
  • 56c1a151d2 debugging prints rsc 2007-09-26 23:24:23 +0000
  • d5596cd61d Apparently the initial interrupt count lapic[TICR] must be set *after* initializing the lapic[TIMER] vector. rsc 2007-09-26 20:34:12 +0000
  • 355073ea9e oops, interrupts on in syscall traps doesn't work after all rtm 2007-09-25 16:15:05 +0000
  • 3eda2714e6 tell SETGATE to leave interrupts on for T_SYSCALL panic if unknown fault with CPL=0 (i.e. in kernel) rtm 2007-09-25 15:23:44 +0000
  • d7a90d3b5c This should fix building on FreeBSD nelhage 2007-09-19 23:49:52 +0000
  • 6197c04208 Fix compilation on 64-bit machines (thanks to andersk for patch) nelhage 2007-09-18 00:41:34 +0000