| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2011-08-15 | Avoid "boot" in xv6 | Frans Kaashoek | 1 | -1/+1 | |
| 2011-08-09 | Use kernel virtual addresses for BIOS memory, etc. | Frans Kaashoek | 1 | -8/+8 | |
| 2011-07-29 | Map kernel high | Frans Kaashoek | 1 | -1/+3 | |
| Very important to give qemu memory through PHYSTOP :( | |||||
| 2011-02-19 | xv6: formatting, cleanup, rev5 (take 2) | Russ Cox | 1 | -2/+0 | |
| 2011-01-11 | mp: do not panic on surprising hw | Russ Cox | 1 | -3/+12 | |
| 2011-01-11 | make new code like old code | Russ Cox | 1 | -2/+2 | |
| Variable declarations at top of function, separate from initialization. Use == 0 instead of ! for checking pointers. Consistent spacing around {, *, casts. Declare 0-parameter functions as (void) not (). Integer valued functions return -1 on failure, 0 on success. | |||||
| 2010-07-02 | Initial version of single-cpu xv6 with page tables | Frans Kaashoek | 1 | -0/+1 | |
| 2009-08-30 | assorted fixes: | Russ Cox | 1 | -5/+6 | |
| * rename c/cp to cpu/proc * rename cpu.context to cpu.scheduler * fix some comments * formatting for printout | |||||
| 2009-03-08 | be consistent: no underscores in function names | rsc | 1 | -14/+14 | |
| 2007-11-28 | bda[0xE] is a 16-bit segment number, | rsc | 1 | -1/+1 | |
| not a real address. So shift 4. Reported by Silas. Jim McKie says this code only matters on ancient EISA MP systems. | |||||
| 2007-08-28 | comments; rename irq_ to pic_ | rsc | 1 | -0/+2 | |
| 2007-08-28 | spaces around else for rtm | rsc | 1 | -1/+1 | |
| 2007-08-28 | more consistent spacing | rsc | 1 | -1/+1 | |
| 2007-08-27 | delete unnecessary #include lines | rsc | 1 | -2/+1 | |
| 2007-08-27 | Simplify MP hardware code. | rsc | 1 | -144/+60 | |
| Mainly delete unused constants and code. Move mp_startthem to main.c as bootothers. | |||||
| 2007-08-27 | nits | rsc | 1 | -6/+6 | |
| 2007-08-27 | nits | rsc | 1 | -17/+13 | |
| 2007-08-24 | nit | rsc | 1 | -1/+1 | |
| 2006-09-08 | nit | rsc | 1 | -1/+1 | |
| 2006-09-08 | formatting nits | rsc | 1 | -1/+2 | |
| 2006-09-08 | use bootstrap processor as specified by MP table. typically 0, but not | kaashoek | 1 | -1/+2 | |
| guaranteed. | |||||
| 2006-09-07 | comment fixes | rsc | 1 | -1/+2 | |
| 2006-09-07 | run without lapic and ioapic, if they are not present | kaashoek | 1 | -2/+6 | |
| if no lapic available, use 8253pit for clock now xv6 runs both on qemu (uniprocessor) and bochs (uniprocessor and MP) | |||||
| 2006-09-06 | wrap long lines | rsc | 1 | -7/+17 | |
| 2006-09-06 | break single-line if statements | rsc | 1 | -1/+2 | |
| 2006-09-06 | no /* */ comments | rsc | 1 | -24/+20 | |
| 2006-09-06 | standardize various * conventions | rsc | 1 | -19/+19 | |
| 2006-09-06 | spacing fixes: no tabs, 2-space indents (for rtm) | rsc | 1 | -29/+29 | |
| 2006-08-29 | prune unneeded panics and debug output | rtm | 1 | -11/+0 | |
| 2006-08-08 | fix race in holding() check in acquire() | rtm | 1 | -1/+3 | |
| 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 | -8/+23 | |
| ioapic | |||||
| 2006-07-20 | uint32_t -> uint &c | rtm | 1 | -19/+19 | |
| 2006-07-17 | standarize on unix-like lowercase struct names | rsc | 1 | -20/+20 | |
| 2006-07-17 | add uint and standardize on typedefs instead of unsigned | rsc | 1 | -2/+2 | |
| 2006-07-17 | nitpicks | rsc | 1 | -2/+2 | |
| 2006-07-16 | various little fixes that should have been in earlier checkins | rsc | 1 | -1/+0 | |
| 2006-07-16 | Keep interrupts disabled during startup. | rsc | 1 | -1/+3 | |
| 2006-07-12 | extract lapic code from mp.c | kaashoek | 1 | -202/+7 | |
| 2006-07-12 | i think my cmpxchg use was wrong in acquire | rtm | 1 | -3/+8 | |
| nesting cli/sti: release shouldn't always enable interrupts separate setup of lapic from starting of other cpus, so cpu() works earlier flag to disable locking in console output make locks work even when curproc==0 (still crashes in clock interrupt) | |||||
| 2006-07-12 | no more big kernel lock | rtm | 1 | -4/+0 | |
| succeeds at usertests.c pipe test | |||||
| 2006-07-11 | Changes to allow use of native x86 ELF compilers, which on my | rsc | 1 | -2/+2 | |
| Linux 2.4 box using gcc 3.4.6 don't seem to follow the same conventions as the i386-jos-elf-gcc compilers. Can run make 'TOOLPREFIX=' or edit the Makefile. curproc[cpu()] can now be NULL, indicating that no proc is running. This seemed safer to me than having curproc[0] and curproc[1] both pointing at proc[0] potentially. The old implementation of swtch depended on the stack frame layout used inside swtch being okay to return from on the other stack (exactly the V6 you are not expected to understand this). It also could be called in two contexts: at boot time, to schedule the very first process, and later, on behalf of a process, to sleep or schedule some other process. I split this into two functions: scheduler and swtch. The scheduler is now a separate never-returning function, invoked by each cpu once set up. The scheduler looks like: scheduler() { setjmp(cpu.context); pick proc to schedule blah blah blah longjmp(proc.context) } The new swtch is intended to be called only when curproc[cpu()] is not NULL, that is, only on behalf of a user proc. It does: swtch() { if(setjmp(proc.context) == 0) longjmp(cpu.context) } to save the current proc context and then jump over to the scheduler, running on the cpu stack. Similarly the system call stubs are now in assembly in usys.S to avoid needing to know the details of stack frame layout used by the compiler. Also various changes in the debugging prints. | |||||
| 2006-07-05 | timer interrupts | kaashoek | 1 | -19/+42 | |
| disk interrupts (assuming bochs has a bug) | |||||
| 2006-07-01 | swtch saves callee-saved registers | rtm | 1 | -8/+4 | |
| swtch idles on per-CPU stack, not on calling process's stack fix pipe bugs usertest.c tests pipes, fork, exit, close | |||||
| 2006-06-28 | disable interrupts when holding kernel lock | kaashoek | 1 | -0/+6 | |
| 2006-06-28 | timer interrupts | kaashoek | 1 | -13/+25 | |
| 2006-06-26 | stick mpstack in cpu structure | kaashoek | 1 | -8/+6 | |
| 2006-06-24 | boot more than two CPUs, each on own initial stack | rtm | 1 | -15/+22 | |
| 2006-06-22 | compile "user programs" | rtm | 1 | -16/+16 | |
| curproc array | |||||
| 2006-06-22 | checkpoint. booting second processor. stack is messed up, but thanks to cliff | kaashoek | 1 | -30/+254 | |
| and plan 9 code, at least boots and gets into C code. | |||||
| 2006-06-21 | start on MP; detect MP configuration | kaashoek | 1 | -0/+139 | |
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index : 135e2/xv6-labs.git |
| xv6-labs-2024-winter | 135e2 |