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68 commits

Author SHA1 Message Date
Steffen Vogel
a972efe288 Merge branch 'vma_kernel' into vogel 
Conflicts:
	kernel/tasks.c
 2013-11-20 14:00:04 +01:00
Steffen Vogel
aa1730919e standardized comment format and code cleanup 2013-11-20 12:03:24 +01:00
Steffen Vogel
79c4f2703e setup kernelspace VMA list 2013-11-20 11:27:49 +01:00
Steffen Vogel
3cd5a5853b added VMA list implementation 2013-11-20 11:26:55 +01:00
Steffen Vogel
df99b4dfff some rewrite of mmu_init concerning the initialization of the memory bitmap 2013-11-20 11:18:10 +01:00
Steffen Vogel
0d7aa3d0ca allow memory initialization without multiboot mmap 2013-11-20 11:15:10 +01:00
Steffen Vogel
06877ff108 bitmap cleanup 2013-11-18 15:47:26 +01:00
Steffen Vogel
3e73d6384e fixed regression 2013-10-17 13:09:20 +02:00
Steffen Vogel
dac9b20c18 some comments cleaned up 2013-10-16 13:42:58 +02:00
Steffen Vogel
2e230a609e added more output to vma_dump() 2013-10-10 11:50:38 +02:00
Steffen Vogel
2f02db8dc0 fixed typo 2013-10-10 11:46:04 +02:00
Stefan Lankes
4775e5e11e use static stacks only for the idle tasks 
=> all other stacks will be created on demand
 2012-07-19 22:07:59 +02:00
Stefan Lankes
9d843a5e09 reduce obsolete lines and additional output messages 2012-06-10 08:54:08 +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
Jacek Galowicz
0a577b9f7e Fixed the pageframe allocation error introduced by 
d641f5a211

This did only occur on the SCC: If someone allocated much memory and
wrote over it, it did affect the initrd...
 2012-05-03 04:16:41 -07:00
Stefan Lankes
bfbd560f70 this fixes booting with initrd on qemu 1.0 
patch submitted by Niels Ole Salscheider  <niels_ole@salscheider-online.de>
 2012-02-02 22:54:09 +01:00
Stefan Lankes
aacfcd31ed do not longer support the sccMerge flag "-1slot" 2011-08-15 04:49:38 -07:00
Stefan Lankes
d641f5a211 fix bug in reading the FPGA registers to determine the size of the private memory 2011-08-15 02:53:01 -07:00
Stefan Lankes
fba32ec692 using of the correct data types 
=> avoids some conflicts on other architectures
 2011-07-30 17:34:30 +02:00
Stefan Lankes
09b3655ea4 reserve a page for the boot code of the application processors 2011-07-18 09:13:33 +02:00
Stefan Lankes
af2345d15c remove typos and cosmetic changes 2011-06-28 13:45:12 -07:00
Stefan Lankes
01a7530d63 use the FPGA registers to determine the number slots, which are used as private memory 2011-06-28 10:58:32 -07:00
Stefan Lankes
cf6fdf4067 reducing the size of the kernel image by using unintialized global arrays 2011-06-22 08:38:49 +02:00
Stefan Lankes
7970899fd1 use HALT instead of NOP8 2011-05-17 08:12:56 -07:00
Stefan Lankes
29ab43f289 First steps to realize Inter-Core-Communication via RCCE 2011-04-23 00:13:12 -07:00
Stefan Lankes
900c67c2a0 remove obsolete flags 2011-04-22 09:31:33 +02:00
Stefan Lankes
df250721b5 use logical operation instead of / and % to increase the performance 2011-04-19 07:23:00 +02:00
Stefan Lankes
eeb49cdb90 add the SCC support of a initial ramdisk 2011-04-13 11:03:34 -07:00
Stefan Lankes
f9ec7ccadc redesign of the SCC's init routines 2011-03-25 20:28:43 +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
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
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
3aaa2406de add a VMA list, which holds each virtual memory region of a user-level process 2011-02-24 09:29:38 +01:00
stefan
bb34748589 - remove typo 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@405 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-02-10 13:01:29 +00:00
stefan
67d772b7fb - add additional error checks 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@404 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-02-10 12:58:28 +00:00
stefan
308e023a85 - use non-recursive Makefiles 
- this patch based on Florian Zeitz's hint


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@400 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-02-09 19:13:40 +00:00
stefan
9130e9f03c - increasing the readability 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@396 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-02-09 07:07:07 +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
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
d931830aa1 - fix bug in the routine which determines the free page frames on the SCC 
(wrong break condition)


git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@371 315a16e6-25f9-4109-90ae-ca3045a26c18
 2011-01-07 05:45:01 +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
c8c3035a4d - complete redesign of the APIC code 
- MetalSVM detects the APIC and initializes the APIC timer
- If an a APIC is available, the PIC timer will be disabled
- SMP is currently not supported



git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@233 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-11-04 20:15:39 +00:00
stefan
8b725cd6d8 - add some NOPs in an endless loop 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@215 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-10-28 13:15:04 +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
c882b28f03 - remove unused variable 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@155 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-09 05:58:57 +00:00
stefan
794dde279a - remove obsolete liness 
- remove typos
- add comments



git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@148 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-08 07:12:54 +00:00
stefan
e7865175bd - add the SCC support in our memory management unit 
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@147 315a16e6-25f9-4109-90ae-ca3045a26c18
 2010-09-08 07:10:02 +00:00