* there is now a "Disable Hyper-Threading" safemode in the boot loader
* the SMP & HT menu items are now added in smp.cpp - and are only added
if the system supports one of them.
* more cleanup to smp_apic.h
* removed cpuid() from the boot loader's support.S - instead, it will now
use the one from the kernel.
* added a very weak HT detection: if the MP config only listed one CPU,
and this CPU supports HT, we enable the other logic processor manually -
as this currently doesn't work, it's disabled, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14536 a95241bf-73f2-0310-859d-f6bbb57e9c96
part of the base table, not the extended table.
Renamed some structure fields, variables to be clearer and nicer to read.
Removed some unused stuff.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14502 a95241bf-73f2-0310-859d-f6bbb57e9c96
your system, I've also added a "Disable SMP" safemode option. The NO_SMP
define is still there, and will be removed once SMP works flawlessly.
Prints out infos about the interrupt entries in the MP config.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14499 a95241bf-73f2-0310-859d-f6bbb57e9c96
user application performs a division by zero or causes a general
protection fault. For some exceptions (e.g. machine check) I wasn't
quite sure whether they can be caused by user apps at all, so we panic()
in those cases. Wouldn't harm, if someone more knowledgable would check
this, though.
* Removed the unused fault handling stuff, respectively moved the little
that was used into x86/arch_int.c.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13795 a95241bf-73f2-0310-859d-f6bbb57e9c96
called by debug_init_post_vm().
Since the availability of a blue screen specific getchar() is static anyway, there
is no need for the sBlueScreenGetChar variable (only the message "only serial input
available" gets lost, but since that is platform specific anyway...).
Hello blue screen! We now have an on-screen KDL, to be enabled by the kernel
setting "bluescreen", just like on BeOS.
The blue screen does not yet support any cursor actions or backspace, though (need
to grab some stuff from our console driver).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12896 a95241bf-73f2-0310-859d-f6bbb57e9c96
kernel_debugger() didn't do enough before; panic() did all the work - but
since the former is a public function as well, I moved all the functionality
to it. Also fixed a possible buffer overrun in panic().
Renamed dbg_* to debug_*.
"serial_debug_port" setting did not ignore negative values.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12889 a95241bf-73f2-0310-859d-f6bbb57e9c96
Lots of cleanup:
- moved B_NO_ENABLE_COUNTER flag definition out of int.h to KernelExport.h, as it's
described in the BeBook (although it's probably not really used that often :))
- int.c no longer has any platform dependent code (+ 0x20 on interrupt numbers is gone);
it's now entirely handled in the arch/x86/ section.
- the io_vectors[] is now statically initialized, instead of allocated from the heap
- removed {install|remove}_interrupt_handler(); they weren't that useful, arch_smp_init()
is now calling install_io_interrupt_handler() correctly instead
- introduced a new arch_int.h header file that currently contains NUM_IO_VECTORS only
(though on x86, it also has ARCH_INTERRUPT_BASE == 0x20).
- changed the return type from {install|remove}_io_interrupt_handler() from "long" to
"status_t"
- rearranged and cleaned the PIC initialization code, made the PIC code more prominent
- changed comments that talk about a non existing 8239 (the PIC chip is actually 8259)
- moved arch/x86/interrupts.h to the source directory, as it's not used outside
- added BeOS compatible interrupts_enabled() function, that should replace our
equivalent (and private) are_interrupts_enabled()
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12477 a95241bf-73f2-0310-859d-f6bbb57e9c96
create_area() and friends should fail if it's not supported.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12248 a95241bf-73f2-0310-859d-f6bbb57e9c96
for these changes. I was mostly just staring in amazement at the screen
while Axel and Thomas were discussing IA32 internals. A particularly
fascinating moment was when Thomas produced the cause of a bug we had
been trying to track down for hours off the top of his head (of course
iret behaves specially when the NT bit is set :-). His slowness must be
excused though, since he hadn't slept for more then 30 hours. ;-)
The code doesn't wholeheartedly deal with multi-processor machines yet.
Axel will certainly do some cleanup...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12239 a95241bf-73f2-0310-859d-f6bbb57e9c96
flag. Now, it will choose how to set the granularity by evaluating the
limit.
This call was actually already used this way in the kernel, so that
the TLS and TSS segments were much too large (harmless but incorrect).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12231 a95241bf-73f2-0310-859d-f6bbb57e9c96
Introduced a gBootFrameStack that is used until the first thread structure
is available - this allows stack crawls and useful register dumps during
early startup. Could also be solved differently by making sure there is
always a thread structure installed in %dr3 (ie. the boot thread would
get a static thread structure instead of a static iframe stack only).
This might be a better solution as i386_handle_trap() would no longer
need to check for an existing thread structure.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12230 a95241bf-73f2-0310-859d-f6bbb57e9c96
Moved ptentry/pdentry to arch_vm_translation_map.c and renamed them to
page_table_entry and page_directory_entry.
Fixed a race condition that happened when memory was remapped (which
can currently happen because lock_memory() does not work correctly, and
there might be other conditions as well, like certain vm_store fault
handlers). Now, page table and directory entries are updated atomically.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12229 a95241bf-73f2-0310-859d-f6bbb57e9c96
with the bit number, not the respective mask).
* Added a small hack to allow single stepping to work in qemu.
Apparently the BS bit in DR6 is not set when the debug exception
is handled. So we always assume that a single step event occurred,
when we couldn't recognize any other event, if the hack is enabled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11998 a95241bf-73f2-0310-859d-f6bbb57e9c96
we only have 3 debug registers available for break-/watchpoints.
* Added definitions for debug status register DR6. Reordered DR7 defs to
ascending order. Added definitions for the EFLAGS flags we need.
* Added arch_thread_debug_info structure and related definitions.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11525 a95241bf-73f2-0310-859d-f6bbb57e9c96
needed to get the topmost user iframe. Added i386_get_user_iframe() for
exactly that purpose.
* Added reinitialization of user debugging for the new thread when
switching the context.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11523 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made the parameter for restoring the FPU state const.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11522 a95241bf-73f2-0310-859d-f6bbb57e9c96
debug infos.
* Added function for setting the CPU state.
* Added functions for setting break-/watchpoints.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11507 a95241bf-73f2-0310-859d-f6bbb57e9c96
Introduced new arch_vm.h ("public" arch headers have the arch_ prefix).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10384 a95241bf-73f2-0310-859d-f6bbb57e9c96
of BIOS32, SMBIOS, and DMI services.
Also implemented a get_bios32_service() function which you can use to get
access to that service (ie. for use by the PCI bus manager).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10286 a95241bf-73f2-0310-859d-f6bbb57e9c96
an error, there is supposed to be one of these at maximum right now).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9517 a95241bf-73f2-0310-859d-f6bbb57e9c96
and why they are called.
Introduced a cpu_init_post_vm() that will now call arch_init_post_vm() instead
of letting main() doing it.
Fixed some return types (mostly from int to status_t).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9438 a95241bf-73f2-0310-859d-f6bbb57e9c96
- the above file now also exports a function to finally complete the kernel's
address space translation map after semaphores became available (was just
not done before)
- renamed some functions, especially the *_init2() functions are now called
like *_init_post_area() to indicate they are called after the area functionality
became available
- removed the _struct suffix from certain structures
- fixed some return types
- added prototype for vm_free_unused_boot_loader_range() to be called by
arch code.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9423 a95241bf-73f2-0310-859d-f6bbb57e9c96
The former now only contains the structure definitions, while the other one
contains the arch-specific function prototypes (which do not have the arch_
prefix).
Added a ToDo comment to remember cleaning this up one day.
Made all headers C++ safe, simplified where possible.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5197 a95241bf-73f2-0310-859d-f6bbb57e9c96
Replaced definitions for enable_interrupts() and are_interrupts_enabled()
with static inlines.
Made int.h C++ safe.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5190 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added constructors to block_address_translation and segment_descriptor
that will clear its memory (could be done more efficiently though, it just
uses memset()).
Added definitions for the MSR (machine state register).
Added tlbsync() macro (direct assembler call).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5092 a95241bf-73f2-0310-859d-f6bbb57e9c96
in this file.
Moved the vm_translation_map_get_pgdir() function to the x86 specific
header.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5066 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added an alternative page_table_entry::SecondaryHash() signature.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4988 a95241bf-73f2-0310-859d-f6bbb57e9c96
They are only used if the architecture doesn't support them directly.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4360 a95241bf-73f2-0310-859d-f6bbb57e9c96
from smp_priv.h and stage2_priv.h. Created a new file smp_apic.h which now
contains those definitions.
Made the APIC_xxx register offsets only base offsets (without referencing a
particular variable).
Other small cleanups (i.e. "unsigned int" to uint32).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2604 a95241bf-73f2-0310-859d-f6bbb57e9c96
Renamed i386_set_kstack() to i386_set_tss_and_kstack(), because that's what
it does.
Added a new function arch_thread_init_tls() which must be called after
having allocated the TLS area.
Renamed arch_thread_initialize_kthread_stack() to arch_thread_init_kthread_stack()
to be more consistent.
Changed the parameters for arch_thread_enter_uspace() - it now gets a pointer
to the thread structure and takes the user stack pointer from there (which
might also be architectural different).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2379 a95241bf-73f2-0310-859d-f6bbb57e9c96
Moved the tss_descriptor structure to descriptor.h, updated it to be a
segment_descriptor structure, and provided inlines for set_tss_descriptor(),
set_segment_descriptor(), set_segment_descriptor_base(), and
clear_segment_descriptor().
Also added defines for the different privilege levels and descriptor types.
Removed the unusused and incorrect TSS definition, introduced new
TSS_BASE_SEGMENT and TLS_BASE_SEGMENT macros.
Removed include of arch/cpu.h in arch_cpu.h.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2360 a95241bf-73f2-0310-859d-f6bbb57e9c96
Changed the file_descriptor structure (more status_t, name removed).
Changed "extern inline" to "static inline" in thread.h/arch_thread.h as those
also work with -O0 -g.
Added prototypes for [arch_cpu_]user_strlcpy().
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1454 a95241bf-73f2-0310-859d-f6bbb57e9c96
Removed dependencies on arch/x86/types.h - this file is not really used
anymore, now. Might prevent compiling on Windows, though.
Replaced "int" with "int32" for the id types.
Removed some stuff from ktypes.h because it didn't belong there.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1120 a95241bf-73f2-0310-859d-f6bbb57e9c96
A couple of changes in various interrupt and thread functions and structures.
These make it now possible to change the stack at any time without making the kernel crash. This is needed for calling VESA 3.0 VBE functions through the protected mode interface.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@422 a95241bf-73f2-0310-859d-f6bbb57e9c96
