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Rev Age Author Path Log message Diff
967 6657 d 18 h palkovsky /kernel/trunk/ Allowed userspace to include page.h.  
965 6657 d 19 h palkovsky /kernel/trunk/ Added skeleton name service.
Cleanup for IPC to use mutexes instead of spinlocks.		  
963 6658 d 7 h jermar /kernel/trunk/generic/src/lib/ Fix bug in loading ELF segment.  
962 6658 d 7 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
959 6658 d 7 h palkovsky /kernel/trunk/ New synchronous ipc.
Widened syscall to support up to 5 parameters.		  
958 6658 d 8 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.		  
957 6658 d 8 h decky /kernel/trunk/arch/ run ppc32 kernel above 2 GB  
955 6658 d 9 h palkovsky /kernel/trunk/ Added kernel IPC functionality.  
952 6658 d 12 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
951 6658 d 13 h decky /kernel/trunk/arch/ppc32/ ppc32 boots again (temporarily)  
947 6658 d 18 h vana /kernel/trunk/ Better purge page selection.  
946 6659 d 6 h jermar /kernel/trunk/generic/ Fix frame deallocation.
Zone state is to be upadated only when the frame refcount reaches zero.		  
945 6659 d 7 h vana /kernel/trunk/arch/ia64/  
944 6659 d 8 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
941 6659 d 9 h palkovsky /kernel/trunk/ Fixed mips elf loading.  
940 6659 d 9 h jermar /kernel/trunk/ Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader.		  
939 6659 d 10 h palkovsky /kernel/trunk/contrib/conf/ Fix msim configuration.  
938 6659 d 10 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6659 d 11 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
934 6659 d 11 h decky /kernel/trunk/arch/ppc32/ remove all OpenFirmware bindings from ppc32 kernel code
kernel now runs in real mode (ppc32)		  
932 6659 d 11 h palkovsky /kernel/trunk/generic/src/console/ Allow using direct address as parameter.  
931 6659 d 12 h palkovsky /kernel/trunk/generic/src/console/ Allow direct address specification.  
930 6659 d 14 h decky /kernel/trunk/contrib/conf/ preliminary Simics 3.0 configuration for Simics  
929 6659 d 14 h palkovsky /kernel/trunk/ Restrict itanium test to itanium.  
928 6659 d 15 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
927 6659 d 17 h decky /kernel/trunk/contrib/conf/ Simics 3.0 IA32/AMD64 component configuration  
925 6659 d 18 h palkovsky /kernel/trunk/arch/ia32/src/mm/ Fix e820list on ia32.  
924 6659 d 20 h palkovsky /kernel/trunk/arch/mips32/ Macro redefinition for mips fpu.  
923 6660 d 3 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
922 6662 d 6 h jermar /kernel/trunk/genarch/src/mm/ Fix generic page hash table to align down page addresses.
This was the ia64 userspace show stopper.		  
921 6662 d 11 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6662 d 16 h jermar /kernel/trunk/ ia64 work.
Changes to make userspace work (kernel part).
Use ski.conf from contrib directory to run Ski.

There is actually no appropriate syscall handler yet.		  
916 6664 d 17 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6664 d 18 h jermar /kernel/trunk/arch/ia64/ ia64 work.
- Another item had to be allocated on stack to remember new value written to ar.bspstore.
Fix heavyweight interruption handler to calculate RSC.loadrs from the new value of ar.bspstore
instead from the old one.
Uncomment instructions switching ar.bspstore.
- Configure kernel with 512M of memory.		  
912 6666 d 8 h jermar /kernel/trunk/ ia64 work.

ivt.S:
Detect userspace stack in heavyweight handler and switch to kernel stack.
Remember the old stack pointer.
As for register stack, kernel stack is assumed still.
Fix alignment issues that showed when STACK_ITEMS was odd.
Fix ld8 instruction that did subtraction of 8 instead of addition of 8.

scheduler.c:
Change before_thread_runs_arch() to calculate address of top of the stack
for the interrupt handler.		  
911 6666 d 12 h jermar /kernel/trunk/arch/ia64/ ia64 work.

Change heavyweight interrupt handler to use bank 0 registers instead of AR.KR0 and AR.KR1.
This prevents userspace from the possibility to see what addresses are being used by kernel.

Store kernel stack address in bank 0 r23 instead of AR.KR7. Again, userspace will not be
able to read the address of its kernel stack.

Increase FRAME_SIZE to 64K as this is the first supported page size in which will fit
thread's combined register and memory stack. (RSE can write out as many as 16K.)		  
910 6666 d 15 h bondari /kernel/trunk/ ELF framework for all archs. SPARC V9 not tested to compile.  
909 6666 d 17 h bondari /kernel/trunk/generic/include/ elf32 complete headers  
907 6668 d 16 h palkovsky /kernel/trunk/generic/src/proc/ Correct sleeping on memory allocation during FPU lazy switch.  
906 6669 d 4 h palkovsky /kernel/trunk/ Added lazy fpu context allocation.
- threads that don't use fpu, don't get allocated fpu context
- fpu context alignment on AMD64 nicely disappeared