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134 commits

Author SHA1 Message Date
Jacek Galowicz
6c6d77cfa6 Committed the rest. There is only few stuff missing. 
Embedded nice pictures.
 2011-04-05 14:44:42 +02:00
Stefan Lankes
604670c981 now, the system call "execve" sets also the environment 2011-03-10 09:10:12 +01:00
Stefan Lankes
2d9ba6ae70 forwarding arguments to the new tasks 2011-03-08 23:12:38 +01:00
Stefan Lankes
d201c4d1bc - add the support of the system call execve 2011-03-07 20:26:55 +01:00
Stefan Lankes
6f092641ba remove memory leak and redesign of the internal memory accounting 2011-03-04 22:44:53 +01:00
Stefan Lankes
56ee331596 add nested spinlocks 
- required to avoid deadlocks
 2011-03-04 11:38:40 +01:00
Stefan Lankes
a27150b923 Fix bug in system call "fork" 
- issues: memory leak
 2011-03-02 23:08:01 +01:00
Stefan Lankes
5ce3ed9338 First steps to support the system calls "fork" and "wait" 
- Currently, the system call "fork" doesn't work and has a memory leak
- However, it is a good starting point for further developments.
 2011-03-02 13:49:36 +01:00
Stefan Lankes
17193475bb use a spinlock for each PGD 
increases also the useability of vm_alloc and vm_free
 2011-02-24 19:06:32 +01:00
Stefan Lankes
e157f93104 create also for kernel tasks a new PGD 2011-02-24 18:44:11 +01:00
Stefan Lankes
54d636d25c after process termination, the PGD and its PGTs will be freed 2011-02-24 18:32:58 +01:00
Stefan Lankes
16efb49204 remove obsolete function arguments 2011-02-24 10:15:58 +01:00
Stefan Lankes
c5b650fc32 add the support of the VMA list into the kernel 
- after process termination, this list is used to free the allocated memory regions
 2011-02-24 09:37:31 +01:00
Stefan Lankes
c355adb300 create a new pgd for each process 2011-02-18 21:20:15 +01:00
stefan
9a9df5ed2e - merge current eduOS branch to MetalSVM 
=> add the support of "real" user-space applications, which could be loaded via initrd


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@394 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-02-08 18:37:56 +00:00
stefan
2bfc5a49dc - move 32bit elf header to arch/x86 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@376 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-01-19 07:04:50 +00:00
stefan
8646b56a63 - minor changes to support APIC 
(currently, we got page fault by entering apic_calibration)
- first steps to realize a loader



git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@365 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-01-05 10:16:53 +00:00
stefan
45219bce2e - huge commit 
- enable the paging support
- redesign of the APIC code

TODO:
- Currently, we are not able to start user-level applications.
- The RTL8139 driver does not longer work. Perhaps, a bug in the output function.
- The APIC codes doesn't work on all systems. Therefore, the code is currently disabled.



git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@326 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-12-10 06:16:58 +00:00
stefan
b78b2349eb - add some error checks 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@234 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-11-05 06:07:39 +00:00
stefan
ae16dc414b - remove some typos in the comments 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@197 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-10-25 16:59:23 +00:00
stefan
b0e600da99 - prepare MetalSVM for multicore environments 
- create the variable current_task on each core


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@159 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-12 14:45:03 +00:00
stefan
c4ed163f9d - cosmetic changes 
- use inline functions instead of macros


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@158 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-11 11:29:30 +00:00
stefan
81df510743 - add comments 
- use readable macros instead of constants
- use the same error number like newlib


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@156 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-10 22:18:55 +00:00
stefan
ea6658a2ab - add the function spinlock_has_lock to avoid nested blocking 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@52 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-09 17:31:11 +00:00
stefan
9754bffcc0 - redesign of the atomic operations 
- now, we use a ticket lock



git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@48 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-09 13:22:03 +00:00
stefan
71188c92f9 - complete restart of the project 
- support of TSS-based task switching
- add a mailbox template
- suport of user level task
- support of system calls


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@47 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-09 11:47:51 +00:00
stefan
a8f684af9c - remove type in join_kernel_tasks (typo in if-clause) 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@37 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-04 17:20:44 +00:00
stefan
9839840e89 - simplify the code by defining the new task status TASK_IDLE 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@36 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-04 16:28:59 +00:00
stefan
9825532c82 - remove obsolete files 
- the function join_kernel_task delivers the return value of the task, which is watinting for
-spinlocks supports irq save functions 


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@21 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-03 10:20:32 +00:00
stefan
44f4de6e80 - add an implementation of a semaphore and some test cases 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@18 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-02 19:05:33 +00:00
stefan
b6375e8d6c - remove typo 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@17 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-02 13:34:01 +00:00
stefan
b11c38d4af - add the support of "join_kernel_task" 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@16 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-02 13:24:05 +00:00
stefan
0aea73bdc7 - add a simple memory mangement unit 
- use a bitmask to mark used pages (see lecture notes "BS")


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@7 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-02 07:43:56 +00:00
stefan
9778b7b790 - first steps to realize a SVM subsystem in a VM 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@2 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-07-31 15:53:30 +00:00