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290 commits

Author SHA1 Message Date
Stefan Lankes
6462e2b0fd remove typo 2012-07-19 00:31:08 +02:00
Stefan Lankes
89c792cc03 fix bug in the calculation of esp0 2012-07-19 00:17:31 +02:00
Stefan Lankes
09ec6dcc3a some code cleanups 
=> simplify the handling of FPU exceptions
 2012-07-18 20:56:23 +02:00
Stefan Lankes
dadc4ce7ed set task switched flag to support applications, which require FPU support 2012-07-18 20:54:04 +02:00
Stefan Lankes
47fae3de67 some code cleanups 2012-07-17 14:06:48 -07:00
Stefan Lankes
f83f29abb7 add automatic detection of fence instructions 2012-07-17 22:33:29 +02:00
Stefan Lankes
c32a30726a some code cleanups 2012-07-17 12:44:18 -07:00
Stefan Lankes
6013c2ec4d add memory barriers to seralize load and store operations 
=> required to clone a task
 2012-07-16 23:05:46 +02:00
Stefan Lankes
4ebfbdf63d Merge branch 'master' into tickless 2012-07-14 13:28:08 -07:00
Stefan Lankes
1c4c51ae50 port esp0-patch to x86_64 2012-07-14 12:15:01 +02:00
Stefan Lankes
3c1b270160 fix bug in the calculation of esp0 2012-07-14 11:16:29 +02:00
Stefan Lankes
6259892c00 initialize the kernel stack only for the boot task 2012-07-14 11:15:18 +02:00
Stefan Lankes
764134bd18 remove bug by searching lapci on a 64bit system 2012-07-10 22:43:02 +02:00
Stefan Lankes
32aee76655 remove obsolete symbols in a single environment 2012-07-10 21:48:23 +02:00
Stefan Lankes
24914fcb4f add prototype of a tickless kernel 
only by entering the kernel, the tick counter will be updated
=> by using this feature, MetalSVM supports only LwIP's raw interface,
   because we have no guarantee that the tcpip thread will get computation time
=> no NETCONN & BSD socket support
=> no load balancing support
 2012-07-03 16:46:54 +02:00
Stefan Lankes
d9f311877c Merge branch 'x64_new' 2012-06-13 11:24:10 +02:00
Stefan Lankes
be3eed681e use the correct data type for the CR4 register 2012-06-13 11:23:05 +02:00
Stefan Lankes
ab27285843 disable obsolete 64bit code 2012-06-13 11:22:38 +02:00
Jacek Galowicz
ecb3fb5af2 Reverted the removal of configure_idt_entry() 
Commit 227cc19890
"add alpha version of x64 support"
removed configure_idt_entry(), but this is used within the
lguest branch.
 2012-06-13 09:57:01 +02:00
Jacek Galowicz
49eb099b80 Reverted the removal of configure_gdt_entry() 
Commit 227cc19890
"add alpha version of x64 support"
removed configure_gdt_entry(), but this is used within the
lguest branch.
 2012-06-13 09:36:28 +02:00
Stefan Lankes
e06d910514 enable SMP support for 64bit systems 2012-06-12 23:42:02 +02:00
Stefan Lankes
a1f07c8027 map also mp_config into the address space 2012-06-12 09:20:54 +02:00
Stefan Lankes
08bcc19626 enable full (64bit) APIC support 
- no SMP support
 2012-06-11 21:49:17 +02:00
Stefan Lankes
e230fdcf15 usage of 64bit TSS descriptors and some code cleanups 2012-06-11 16:16:35 +02:00
Stefan Lankes
4fb03cde20 fix bug in the initialization of the stack pointer 2012-06-11 16:15:26 +02:00
Stefan Lankes
1e275732c5 simplify the APIC and GDT code 2012-06-10 23:40:22 +02:00
Stefan Lankes
654e91b0a2 add LAPIC support of the 64bit kernel 2012-06-10 21:38:01 +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
ed2186ee03 add init code, which jumps to 64bit mode and and calls main 2012-05-29 20:47:45 +02:00
Stefan Lankes
d21e707024 Merge remote-tracking branch 'origin/master' into x64_new 2012-05-24 12:05:14 +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
fc0c903de3 reduce overhead to determine TSS 2012-05-23 11:19:46 -07:00
Stefan Lankes
50b8068a78 fix bug in inline assembler 2012-05-21 12:16:19 -07:00
Stefan Lankes
b9b962ea73 revise software multitasking 
=> remove hardware multitasking
 2012-05-21 15:04:05 +02:00
Jacek Galowicz
0984eb593f Commented everything 2012-04-14 09:57:18 +02:00
Jacek Galowicz
43fc6c94e5 Removed DS, ES, FS and GS registers from task switch routines 2012-04-14 09:18:36 +02:00
Jacek Galowicz
f4a7d6bd3a The context is now switched by software. 
- Cleanup to be done
- Arch_fork does NOT work in this state
- Multiprocessing support not yet implemented
 2012-04-14 00:34:09 +02:00
Jacek Galowicz
49533df72e Made the interrupt entry also safe the registers DS to GS. 
This may be removed in the future for speed purposes.
 2012-04-11 08:41:58 +02:00
Jacek Galowicz
72016236f1 Fixed two typos. 2012-04-02 14:55:29 +02:00
Jacek Galowicz
4e53aa6f95 Commented the PIT-initialization code to make it easier to understand. 2011-12-15 18:48:06 +01:00
Stefan Lankes
8551a9ea9a use "nicer" function names 2011-10-10 06:23:00 +02:00
Stefan Lankes
8f4349ee51 minor optimizations 2011-10-09 21:03:31 -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
5fe4f8895b minor optimizations and additional output messages 2011-10-07 16:10:34 +02:00
Marian Ohligs
aecd3b1c8c remove compiler warnings in drivers/char/stdio 2011-09-30 11:59:45 +02:00
Stefan Lankes
0285c6b6b7 remove obsolete debug messages 2011-09-22 21:37:57 +02:00
Stefan Lankes
e9ddfd0db2 dump current value of CR0 2011-09-22 21:36:29 +02:00
Stefan Lankes
50315a1d20 dump every minute the average cpu load 2011-09-22 10:58:03 +02:00
Marian Ohligs
df7d1cab87 - increase legibility (add kb_init & kb_finish) 2011-09-19 00:29:16 +02:00