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Rev Age Author Path Log message Diff
3890 5581 d 0 h jermar /trunk/ Get rid of CONFIG_DEBUG_ALLREGS.  
3631 5662 d 23 h jermar /trunk/kernel/arch/ia32/src/ The IA-32 manual is very secretive about the fact that the SYSENTER instruction
disables interrupts (I found only one evidence of this in the instruction's
pseudo code). The sysenter_handler needs to reenable the interrupts in order to
preserve the preemptive nature of the kernel.
 
3485 5712 d 23 h jermar /trunk/ Support for SYSENTER on ia32.  
3274 5769 d 5 h jermar /trunk/ memcpy(), memmove() and similar functions return dst instead of src.
Fix all implementations, including those in assembly. ppc32 assembly
version didn't seem to be affected by this.
 
3043 5838 d 0 h jermar /trunk/kernel/arch/ia32/ Some inline functions in memstr.h seem to be of uncertain origin (ia32).
Replace either with built-in functions or with generic functions.
 
2784 5912 d 23 h jermar /trunk/kernel/arch/ Fortify ia32 and amd64 kernels against mallicious uspace applications that set
DF prior to entering the kernel. For AMD64 syscalls, we don't use the CLD
instruction, but make use of the SFMASK MSR instead. Simics works fine with
it, but QEMU seems to have a problem.
 
2613 6036 d 1 h jermar /trunk/ Support for six syscall arguments for ia32.  
2071 6340 d 0 h jermar /trunk/ (c) versus (C)  
1787 6530 d 2 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1288 6597 d 8 h jermar /kernel/trunk/ Complete implementation of copy_from_uspace() and copy_to_uspace()
for amd64 and ia32. Other architectures still compile and run,
but need to implement their own assembly-only memcpy(), memcpy_from_uspace(),
memcpy_to_uspace() and their failover parts. For these architectures
only dummy implementations are provided.
 
1278 6600 d 2 h palkovsky /kernel/trunk/ Changed interrupt_control to preemption_control.  
1212 6610 d 2 h palkovsky /kernel/trunk/ Added uspace call to enable/disable interrupts.  
1100 6643 d 0 h palkovsky /kernel/trunk/ Cleanup of spinlocks, now compiles both ia32 and amd64 with
and without DEBUG_SPINLOCKS. Made spinlocks inline.
Moved syscall_handler to generic (it was identical for ia32,amd64 & mips32).
Made slightly faster syscall for ia32.
Made better interrupt routines for ia32.
Allow not saving non-scratch registers during interrupt on ia32,amd64,mips32.
Aligned interrupt handlers on ia32,amd64, this should prevent problems
with different instruction lengths.
 
1021 6648 d 2 h jermar /kernel/trunk/ Hopefully final version of interrupt handlers for amd64 and ia32.
amd64 has been especially tricky to debug.
Error code detection is now done in compile time.
 
1016 6648 d 5 h jermar /kernel/trunk/arch/ia32/src/ Improved ia32 interrupt handlers.  
1008 6648 d 8 h jermar /kernel/trunk/ Fix bug in ia32 interrupt handlers.
Handlers for interrupts greater than 31 wrapped the shift around and thus failed to correctly identify
the need to emulate error word.
 
958 6650 d 0 h jermar /kernel/trunk/ Nicer ia32 interrupt handlers and structures holding interrupted context data.
Unify the name holding interrupted context data on all architectures to be istate.
 
952 6650 d 4 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
717 6707 d 2 h decky /kernel/trunk/ remove obsolete in-kernel userspace code
remove CONFIG_USERSPACE switch, uspace support is configured at run-time
 
576 6743 d 19 h palkovsky /kernel/trunk/ Changed ia32 & amd64 to use exc_register instead of trap_register.

Fixed dependency list building. I hope you all have 'makedepend' installed,
if you don't it's time to install it, as CC -M builds the dependency
list without directory names..and it just does not work.
 
534 6749 d 1 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel again.  
532 6749 d 1 h jermar / Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.  
501 6761 d 5 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel.  
392 6809 d 1 h bondari /SPARTAN/trunk/arch/ia32/ Last inline functions for IA-32  
390 6809 d 22 h bondari /SPARTAN/trunk/arch/ia32/ ia-32 memcmp inline  
381 6814 d 22 h jermar /SPARTAN/trunk/ Make cross-compiler the default compiler on IA-32.
For native compilations, use ./build.ia32 native.

Small changes elsewhere.
 
358 6825 d 23 h bondari /SPARTAN/trunk/ built-in memcpy is not used anymore on IA-32.
IA-32 memcpy is now fast and inline.
 
357 6826 d 0 h bondari /SPARTAN/trunk/arch/ia32/src/ small fix  
356 6826 d 1 h bondari /SPARTAN/trunk/arch/ia32/ Get from port functions are now inline  
353 6826 d 11 h bondari /SPARTAN/trunk/arch/ia32/ Outb, outw, outl are now inline functions  
352 6826 d 23 h bondari /SPARTAN/trunk/arch/ia32/ outb inline function  
323 6835 d 8 h jermar /SPARTAN/trunk/ Add comments for new floating point modifiers to print.c.
Remove left-over comments from AMD64 and IA-32 page.c.
Coding style clean up.
 
316 6837 d 12 h jermar /SPARTAN/trunk/arch/ia32/src/ Optimize assembler code according to the knoweledge of IA-32 ABI.  
205 6844 d 10 h jermar /SPARTAN/trunk/ Get rid of memcopy().
All we now have is memcpy() and _memcpy().
memcpy() is defined to be builtin.
Where not applicable, architectures must implement memcpy() code or call slowish _memcopy().
 
198 6844 d 23 h jermar /SPARTAN/trunk/ Switch order of 'src' and 'dst' arguments in some left-over uses of memcopy.

Cleanup.
 
196 6845 d 0 h vana /SPARTAN/trunk/arch/ia32/src/ ASM version of memcopy repaired on ia32  
185 6845 d 8 h decky /SPARTAN/trunk/arch/ OpenFirmware support  
168 6854 d 23 h jermar /SPARTAN/trunk/ Add type cast to __address in vm_create().
This seems to fix the problem with userspace.
Looks like KA2PA() returned wrong address when applied on pte_t *.

Uncomment panic() in gp_fault().
Get rid of cli and sti in userspace code.
 
142 6885 d 7 h vana /SPARTAN/trunk/arch/ia32/src/ Typing error fixed  
141 6885 d 7 h vana /SPARTAN/trunk/ Clear IOPL on start of system on all CPUs and clear NT before all irets.