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111 commits

Author SHA1 Message Date
Stefan Lankes
941a7006a4 backport of the 32bit code 2012-09-10 15:37:45 +02:00
Stefan Lankes
e1c3ddbc8d use irqsave page directory lock to avoid deadlocks 2012-09-10 13:41:00 +02:00
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
e2550fbdb2 avoid deadlock by disabling interrupts in map_region 
- the page_fault handler uses also map_region and implicitly its spinlock
- risk of a deadlock
 2012-08-01 21:12:55 +02:00
Stefan Lankes
8b91ff3fff remove some compiler warnings 2012-07-22 20:10:16 +02:00
Stefan Lankes
9d422ed700 define the function shmalloc to allocate a shared page 
caution, the function returns the physical address
 2012-07-15 05:57:39 -07:00
Stefan Lankes
531556f53c remove warnings, optimize vm_alloc 2012-06-12 09:24:38 +02:00
Stefan Lankes
1e275732c5 simplify the APIC and GDT code 2012-06-10 23:40:22 +02:00
Stefan Lankes
609500a6d8 add additional output messages 2012-06-10 12:10:54 +02:00
Stefan Lankes
c2935e2f66 remove "unsecure" usage of get_page in page_init 2012-06-10 11:53:33 +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
ed2186ee03 add init code, which jumps to 64bit mode and and calls main 2012-05-29 20:47:45 +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
Stefan Lankes
ee4e23bff0 Merge branch 'master' into experiments 2012-04-24 00:38:42 -07:00
Jacek Galowicz
72016236f1 Fixed two typos. 2012-04-02 14:55:29 +02:00
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
4148da6571 fine tuning 2011-12-19 12:26:22 -08:00
Stefan Lankes
dceb8485d9 increasing the support of affinity-on-first-touch 2011-12-14 01:39:12 -08:00
Stefan Lankes
1d5ad1c917 use response mail per default 2011-12-05 00:19:47 -08:00
Stefan Lankes
fae93b4304 support an approach without response mail 2011-12-04 04:47:40 -08:00
Stefan Lankes
feaf615724 align address to page boundary, cosmetic changes 2011-12-03 12:06:36 -08:00
Stefan Lankes
3acdf72b88 remove obsolete debug message 2011-12-01 06:52:04 -08:00
Stefan Lankes
7ed258a1fb remove buf in the calucaltion of the MPB address 
+ increasing the readabilty
+ add additional performance counters for the page allocation
 2011-11-21 13:39:01 -08:00
Stefan Lankes
2071bb0601 increasing the readability of the code 2011-11-21 13:38:02 -08:00
Stefan Lankes
cf76781baa first steps to support affinity on the touch 2011-11-16 03:12:09 -08:00
Stefan Lankes
8c67426c8c Merge branch 'svm' of git.lfbs.rwth-aachen.de:metalsvm into svm 2011-11-10 01:15:37 -08:00
Pablo Reble
1636501973 - fix merge conflicts 2011-11-10 01:09:31 -08:00
Stefan Lankes
e68568aa8f Merge branch 'svm' of git.lfbs.rwth-aachen.de:metalsvm into svm 
Conflicts:
	arch/x86/mm/svm.c
 2011-11-10 01:00:45 -08:00
Stefan Lankes
aba9731610 first steps to realiz "affinity-on-first-touch" 2011-11-10 00:58:34 -08:00
Pablo Reble
a114e3997d Merge branch 'svm', remote branch 'origin/svm' into svm 
Conflicts:
	arch/x86/mm/svm.c
 2011-11-09 07:56:54 -08:00
Pablo Reble
774388526a - set correct task flag 
- cosmetical changes
 2011-11-09 07:48:16 -08:00
Pablo Reble
7b6a2424e0 - implemented first draft of L2 flush 2011-11-08 09:22:49 -08:00
Stefan Lankes
ed26215989 add additional performance counters 2011-11-08 07:46:35 -08:00
Stefan Lankes
9e286a567e initialize atomic counters and enable Lubashevsky barrier 2011-11-08 06:49:40 -08:00
Stefan Lankes
d24958f8b1 Merge branch 'svm' of git.lfbs.rwth-aachen.de:metalsvm into svm 2011-11-08 01:12:13 -08:00
Stefan Lankes
4c61e37fca first steps to realize a Lubachevsky barrier with flag 2011-11-08 01:03:27 -08:00
Stefan Lankes
9dbde43197 rename svmmalloc to svm_malloc, rename svmfree to svm_free, add the function svm_barrier 2011-11-07 12:19:57 -08:00
Stefan Lankes
4c2525c0b3 add code to evaluate the performance of our SVM system 2011-11-07 11:28:44 -08:00
Pablo Reble
2459cdcc7f - started to add L2 flush routine and adapt svm testcase 2011-11-07 07:39:08 -08:00
Stefan Lankes
2db441bc17 add temporary workaround to distribute shared pages over all memory controllers 2011-10-21 14:17:54 -07:00
Stefan Lankes
69d2114654 add flag MAP_REMAP to remap already mapped paged with new attributes 2011-10-10 15:37:35 -07:00
Stefan Lankes
8e6b00b42e redesign of the interrupt handling 
=> now, the eMAC device uses also LINT0
 2011-10-09 13:04:13 -07:00
Stefan Lankes
62070aa3a9 add the support of (explicit) write through caching 2011-09-03 13:25:49 -07:00
Stefan Lankes
27e652f81d if a task exists with a higher priority, we start a rescheduling in check_workqueues. 2011-09-02 13:57:11 -07:00
Stefan Lankes
f198c26851 add nicer output messages 2011-09-02 13:35:22 -07:00
Stefan Lankes
5f4c1f8aaa Integration of Simon's mailbox system into the SVM subsystem 2011-08-29 01:49:59 -07:00
Stefan Lankes
a8cfbf3e93 disable MPE flag (=> using L2 cache) for readonly regions 2011-08-29 01:49:19 -07:00
Stefan Lankes
38d26aecae Merge branch 'master' into demo 2011-08-28 23:59:12 -07:00
Stefan Lankes
81d384b1b0 minor changes in the code style 2011-08-28 08:54:18 -07:00
Stefan Lankes
c81c83e9ff Merge remote branch 'origin/mailbox_integration' into demo 2011-08-27 08:07:43 -07:00