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22 commits

Author SHA1 Message Date
Stefan Lankes
9085bb67e4 fix typo 2011-06-09 08:29:06 +02:00
Stefan Lankes
393808e198 fix bug in the initializtion of the BSS section 
- DO NOT LONGER USE the compiler flag "-fno-zero-initialized-in-bss"
 2011-06-09 08:18:12 +02:00
Jacek Galowicz
a9c4b5ddc0 Encapsulated IDT-/GDT-descriptor configuring code into helper functions. 2011-04-21 07:31:45 +02:00
Stefan Lankes
4fc507bc6b fix bug in the TSS initialization for a new task, which is a copy of the current task 2011-04-18 12:18:59 -07:00
Stefan Lankes
68281c8ad0 cosmetic changes, minor code optimization 2011-04-18 15:10:24 +02:00
Stefan Lankes
ab78beb859 cosemtic changes 2011-04-08 16:02:28 +02:00
Stefan Lankes
de9fb1fc65 use for debugging the normal C callig convention! 
=> no using of compiler flags -fomit-frame-pointer
=> definition of the macro WITH_FRAME_POINTER
 2011-03-22 22:11:43 +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
16efb49204 remove obsolete function arguments 2011-02-24 10:15:58 +01:00
Stefan Lankes
31ad08b7ae Remap lapic and ioapic to the kernel space + some cosmetic changes 2011-02-21 08:36:06 +01:00
Stefan Lankes
c355adb300 create a new pgd for each process 2011-02-18 21:20:15 +01:00
stefan
23ed873c24 - define jump_to_user_code as line function 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@395 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-02-08 19:47:49 +00:00
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
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
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
ef1abb5612 - simplify the array intialization 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@151 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-08 12:07:42 +00:00
stefan
3c0a4afd43 - remove some obsolete debug messages 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@126 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-24 19:10:12 +00:00
stefan
6e0bbaf55e - increase the readability by using macros instead of some hard-coded numbers 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@123 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-24 05:43:39 +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
a9043ebf72 - create GDTs for user applications (ring 3) 
- rename section osstart to multiboot


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@43 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-05 12:41:38 +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