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18 commits

Author SHA1 Message Date
Stefan Lankes
4131221b9a By entering/leaving the kernel, DS and ES registers will be saved/restored. 2012-08-24 20:21:21 +02:00
Stefan Lankes
227cc19890 add alpha version of x64 support 
New features:
- support of kernel tasks in 64bit mode
- support of LwIP in 64bit mode

Missing features in 64bit mode
- user-level support
- APIC support => SMP support

To create a 64bit version of the MetalSVM kernel, the compiler flags “-m64 -mno-red-zone” and the assembler flags “-felf64” has to be used. Please use qemu-system-x86_64 as test platform.

Notice, metalsvm.elf is a 32bit ELF file. However, it contains (beside the startup code) only 64bit code. This is required because GRUB doesn’t boot 64bit ELF kernels. Therefore, for disassembling via objdump the flag  “-M x86-64” has to be used.
 2012-06-10 08:05:24 +02:00
Stefan Lankes
45313d47f2 add build environment for 64bit code 
=> environment build 64bit kernel, but the kernel is not tested!
=> work in progess
 2012-05-24 10:49:45 +02:00
Marian Ohligs
032bba3a95 - some chmod changes 2011-08-02 15:58:20 +02:00
Marian Ohligs
55e0e971be merge master 2011-07-27 10:28:01 +02:00
Stefan Lankes
20c944b099 avoid a task migration during the calculation of the current task 
=> temporary clearing the IF flag
 2011-07-20 08:24:24 +02:00
Stefan Lankes
8e9accd6ed cosmetic changes 2011-07-19 09:58:40 +02:00
Stefan Lankes
d05ffcacac we use the same handler for exceptions and interrupts => interrupts has to push a virtual error code on the stack 2011-07-19 09:10:12 +02:00
Stefan Lankes
18ce8eff11 some code cleanups 2011-07-15 09:22:31 +02:00
Jacek Galowicz
f411498368 Commented another bunch of header files. 2011-04-04 18:12:08 +02:00
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
7398111913 - add the definition "__KERNEL__" to avoid redifinition of ssize_t and off_t 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@120 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-22 10:08:38 +00:00
stefan
da2b895d68 - redesign of the initial ram disk 
- now, we could map file in subdirectories


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@119 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-22 09:56:02 +00:00
stefan
5cfbfb5a32 - add a simple virtual filesystem and as simple initial ramdisk 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@102 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-17 21:20:03 +00:00
stefan
73aef1b9a2 - define ssize_t in printf.c 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@88 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-13 09:29:56 +00:00
stefan
83d3609306 - remove obsolete code 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@56 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-08-10 09:20:40 +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
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