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8 commits

Author SHA1 Message Date
Tomas Hruby e6ebac015d APIC mode uses IO APICs 
- kernel turns on IO APICs if no_apic is _not_ set or is equal 0

- pci driver must use the acpi driver to setup IRQ routing otherwise
  the system cannot work correctly except systems like KVM that use
  only legacy (E)ISA IRQs 0-15
 2010-09-07 07:18:11 +00:00
Arun Thomas 9a21d1a2fd Macros for symbols used in both ASM and C 
-The macros take care of prepending the leading underscore when
 necessary.
 2010-08-17 16:44:07 +00:00
Erik van der Kouwe df0ba02a38 Multiboot support (contributed by Feiran "Fam" Zheng); 
keep in mind that GRUB needs to be patched to read MFS for now;
use /boot/image_latest to boot the last compiled image in GRUB
 2010-07-23 14:24:34 +00:00
Ben Gras a09a8d4f3e kernel: fix for vm_init that triggered assert(ptproc == newptproc) 
- zero cr3 in vm_init() to avoid switch_address_space() not doing anything.

 - add vm_stop() to disable paging on shutdown.
 2010-06-07 22:21:45 +00:00
Ben Gras 2f892aca91 kernel fpu context switching: fix race condition 
There seems to have been a broken assumption in the fpu context
restoring code.  It restores the context of the running process, without
guarantee that the current process is the one that will be scheduled.
This caused fpu saving for a different process to be triggered without
fpu hardware being enabled, causing an fpu exception in the kernel. This
practically only shows up with DEBUG_RACE on. Fix my thruby+me.

The fix
 . is to only set the fpu-in-use-by-this-process flag in the
   exception handler, and then take care of fpu restoring when
   actually returning to userspace

And the patch
 . translates fpu saving and restoring to c in arch_system.c,
   getting rid of a juicy chunk of assembly
 . makes osfxsr_feature private to arch_system.c
 . removes most of the arch dependent code from do_sigsend
 2010-06-03 11:32:22 +00:00
Arun Thomas 007104d60e GCC build fixes/updates 
-Set stack sizes for boot image processes
-Increase RS stack size
-Reduce ramdisk size
-HARDWARE task should use kernel stack
-Minor asm tweaks for leading underscores
 2010-05-26 18:45:55 +00:00
Arun Thomas b0159ad168 Buildsystem changes for GCC 
-Makefile updates
-Update mkdep
-Build fixes/warning cleanups for some programs
-Restore leading underscores on global syms in kernel asm files
-Increase ramdisk size
 2010-05-19 13:24:15 +00:00
Arun Thomas 4ed3a0cf3a Convert kernel over to bsdmake 2010-04-01 22:22:33 +00:00
Renamed from kernel/arch/i386/klib386.S (Browse further)