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Author SHA1 Message Date
Tomas Hruby 13a0d5fa5e SMP - Cpu local variables 
- most global variables carry information which is specific to the
  local CPU and each CPU must have its own copy

- cpu local variable must be declared in cpulocal.h between
  DECLARE_CPULOCAL_START and DECLARE_CPULOCAL_END markers using
  DECLARE_CPULOCAL macro

- to access the cpu local data the provided macros must be used

	get_cpu_var(cpu, name)
	get_cpu_var_ptr(cpu, name)

	get_cpulocal_var(name)
	get_cpulocal_var_ptr(name)

- using this macros makes future changes in the implementation
  possible

- switching to ELF will make the declaration of cpu local data much
  simpler, e.g.

  CPULOCAL int blah;

  anywhere in the kernel source code
 2010-09-15 14:09:46 +00:00
Tomas Hruby 2a2a19e542 proc_init() 
- code that initializes proc.c structures removed from main() and placed in
  proc_init() function
 2010-09-15 14:09:43 +00:00
Tomas Hruby ce4fd0c0fb Enable paging - some more code reshuffling 2010-09-15 14:09:41 +00:00
Tomas Hruby 6c3b981cd6 arch proto.h renamed to arch_proto.h 
- the file moved to the arch include dir
 2010-09-15 14:09:36 +00:00
Ben Gras 2065c9982b include - minor compile fixes (including <ansi.h> in files that use it) 
workaround for kernel/debug.h that causes <ansi.h> to be included in mpx.S
indirectly.
 2010-09-15 08:47:10 +00:00
Ben Gras eaa37fd21c make, lib changes to make gcc/clang format libraries in /usr/lib instead of /usr/gnu/lib. 2010-09-13 16:37:02 +00:00
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
Tomas Hruby 2440ffae49 Kernel exports DSDP and apic_enabled in machine structure 
- kernel exports DSDP (the root pointer where ACPI parsing starts) and
  apic_enabled in the machine structure.

- ACPI driver uses DSDP to locate ACPI in memory. acpi_enabled tell
  PCI driver to query ACPI for IRQ routing information.
 2010-09-02 15:43:56 +00:00
Tomas Hruby 344e9221ec Kernel supports up to 64 IRQs 
- enough for 2 io apics (usually with 24 pins)
 2010-09-02 15:43:54 +00:00
Tomas Hruby 45badf4c05 ACPI in kernel 
- the ability for kernel to use ACPI tables to detect IO APICs. It is
  the bare minimum the kernel needs to know about ACPI tables.

- it will be used to find out about processors as the MPS tables are
  deprecated by ACPI and not all vendorsprovide them.
 2010-09-02 15:43:51 +00:00
Ben Gras b3c3a1cb1e gcc compiles - add -fno-builtin so that gcc optimisations don't break things. 
- kernel compile was broken with gcc as putchar() was added by gcc in
    stacktrace.c
  - add -fno-builtin everywhere to avoid such problems in the future
  - -fno-builtin in kernel now redundant
 2010-08-31 16:42:44 +00:00
Erik van der Kouwe 1f2054c89c Shutdown changes for multiboot: CTRL-ALT-DEL resets, panic halts 2010-08-30 19:01:58 +00:00
Erik van der Kouwe 50ca7f7f8f Zero out to three stack dwords to fix boot errors 2010-08-24 12:51:11 +00:00
Arun Thomas de231a713e Move MIN() and MAX() macros to sys/params.h 2010-08-21 13:10:41 +00:00
Erik van der Kouwe b9f5e50421 Provide boot image process main functions with a full parameter list, so that bad things don't heppen when using getenv 2010-08-20 11:07:16 +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
Tomas Hruby f7ef192c02 Fixed warning noreturn function returns in arch_system.c 2010-08-06 12:48:26 +00:00
Tomas Hruby 58654acf08 both ack and gcc can compile klib16.S 2010-08-06 12:46:44 +00:00
Tomas Hruby ac9a7f47bd Missing prototype in pre_init.c 
- gcc does not like it
 2010-08-06 12:26:26 +00:00
Erik van der Kouwe 25397ef756 Deal all shutdown cases with multiboot as either reset or poweroff depending on their type (contributed by Feiran 'Fam' Zheng) 2010-08-02 14:41:45 +00:00
Erik van der Kouwe ebec792700 Display fallback message in case poweroff fails (contributed by Feiran 'Fam' Zheng) 2010-08-02 14:40:26 +00:00
Ben Gras b9cea27497 kernel: deadlock test with endpoints instead of slot numbers, slightly cleaner 2010-07-28 14:14:06 +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
Erik van der Kouwe f389ad2655 Move sensitive instructions from libc into kernel 2010-07-23 07:12:47 +00:00
Ben Gras fe343bb002 Make kernel ipc log scripts work for separate ${.OBJDIR}. 
contributed by Antoine Leca.
 2010-07-22 22:04:37 +00:00
Cristiano Giuffrida 03bb1e5750 Don't panic so easily on unexpected pagefault. 2010-07-20 23:51:34 +00:00
Cristiano Giuffrida 0d984b36ef Get rid of static spare pages after VM startup. 2010-07-20 21:59:27 +00:00
Ben Gras 7f343ed574 kernel: clear MF_CONTEXT_SET on kernel exit. 2010-07-20 17:13:44 +00:00
Ben Gras c0074d3aa9 kernel: fix case of EAX getting clobbered after sigreturn. 2010-07-20 17:10:09 +00:00
Ben Gras e0701109ca kernel: make loading kernel in 2nd chunk of memory (at 1MB) the default. 
(indicated by flags hardcoded in kernel that the boot monitor
interprets.)
 2010-07-19 16:33:49 +00:00
Ben Gras b05c989298 kernel - prettier output for ipc errors, call names instead of trap numbers 2010-07-16 15:36:29 +00:00
Cristiano Giuffrida 20101b3bab Remove patch leftovers. 2010-07-13 22:40:14 +00:00
Cristiano Giuffrida f8a8ea0a79 Dynamic configuration in system.conf for boot system services. 2010-07-13 21:11:44 +00:00
Cristiano Giuffrida 8cedace2f5 Scheduling parameters out of the kernel. 2010-07-13 15:30:17 +00:00
Ben Gras 12e9303297 kernel: compile with -mi386 under gcc/clang to not generate SSE code in-kernel. 2010-07-12 10:11:50 +00:00
Cristiano Giuffrida 8427d774b6 RS live update support. 2010-07-09 18:29:04 +00:00
Cristiano Giuffrida 1f8dbed029 RS crash recovery support. 2010-07-06 22:05:21 +00:00
Ben Gras e920c1e1df kernel: fix main prototype 2010-07-06 12:14:59 +00:00
Ben Gras f6f814cb02 include, kernel: minor fixes to make compiling and linking work with clang. 
(fixing warnings)
 2010-07-06 11:59:19 +00:00
Kees van Reeuwijk 0cfdb11450 Repair errors and warnings flagged by llvm. 2010-07-06 11:29:23 +00:00
Ben Gras 42399159da kernel: these asserts from r7657 are not reasonable 
will fire if copy needs more than one try, which is legit.
 2010-07-05 17:45:16 +00:00
Ben Gras 545054c608 kernel: use MF_KCALL_RESUME instead of RTS_VMREQUEST for memcopy retry. 
solves tracker item 499, submitted by Roman Ignatov.
 2010-07-04 23:09:24 +00:00
Tomas Hruby 97eb470bee Fix 2010-07-01 12:31:53 +00:00
Tomas Hruby 7920d48156 FPU cleanup 
- last reference to MF_USED_FPU removed

- proc_used_fpu() used to test for MF_FPU_INITIALIZED
 2010-07-01 12:23:25 +00:00
Erik van der Kouwe 23284ee7bd User-space scheduling for system processes 2010-07-01 08:32:33 +00:00
Cristiano Giuffrida 180358ffb4 Give RS a page table. 2010-06-28 22:07:49 +00:00
Cristiano Giuffrida 06700d05d1 Give RS a page table. 2010-06-28 21:53:37 +00:00
Ben Gras 8379b08845 library function to retrieve kernel proc table and sanity check it 2010-06-28 11:05:15 +00:00
Tomas Hruby 67fa273d00 MF_REPLY_PEND should be removed when sendrec finishes 2010-06-28 08:32:49 +00:00
Kees van Reeuwijk 5eb6f6e922 Fixed a type declaration inconsistency. 2010-06-26 21:13:36 +00:00