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Rev Age Author Path Log message Diff
977 6675 d 7 h jermar /kernel/trunk/ Add sys_mremap() syscall.  
973 6675 d 9 h palkovsky /kernel/trunk/generic/ Added simpler userspace starting.  
972 6675 d 10 h decky /kernel/trunk/arch/ppc32/ ppc32: move kernel one frame up
frame zones initialization		  
970 6675 d 10 h decky /kernel/trunk/arch/ppc32/ ppc32: get memory map from loader  
967 6675 d 10 h palkovsky /kernel/trunk/ Allowed userspace to include page.h.  
965 6675 d 12 h palkovsky /kernel/trunk/ Added skeleton name service.
Cleanup for IPC to use mutexes instead of spinlocks.		  
963 6675 d 23 h jermar /kernel/trunk/generic/src/lib/ Fix bug in loading ELF segment.  
962 6676 d 0 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
959 6676 d 0 h palkovsky /kernel/trunk/ New synchronous ipc.
Widened syscall to support up to 5 parameters.		  
958 6676 d 1 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 6676 d 1 h decky /kernel/trunk/arch/ run ppc32 kernel above 2 GB  
955 6676 d 1 h palkovsky /kernel/trunk/ Added kernel IPC functionality.  
952 6676 d 5 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
951 6676 d 6 h decky /kernel/trunk/arch/ppc32/ ppc32 boots again (temporarily)  
947 6676 d 11 h vana /kernel/trunk/ Better purge page selection.  
946 6676 d 23 h jermar /kernel/trunk/generic/ Fix frame deallocation.
Zone state is to be upadated only when the frame refcount reaches zero.		  
945 6677 d 0 h vana /kernel/trunk/arch/ia64/  
944 6677 d 0 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
941 6677 d 2 h palkovsky /kernel/trunk/ Fixed mips elf loading.  
940 6677 d 2 h jermar /kernel/trunk/ Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader.		  
939 6677 d 3 h palkovsky /kernel/trunk/contrib/conf/ Fix msim configuration.  
938 6677 d 3 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6677 d 4 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
934 6677 d 4 h decky /kernel/trunk/arch/ppc32/ remove all OpenFirmware bindings from ppc32 kernel code
kernel now runs in real mode (ppc32)		  
932 6677 d 4 h palkovsky /kernel/trunk/generic/src/console/ Allow using direct address as parameter.  
931 6677 d 4 h palkovsky /kernel/trunk/generic/src/console/ Allow direct address specification.  
930 6677 d 7 h decky /kernel/trunk/contrib/conf/ preliminary Simics 3.0 configuration for Simics  
929 6677 d 7 h palkovsky /kernel/trunk/ Restrict itanium test to itanium.  
928 6677 d 8 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
927 6677 d 9 h decky /kernel/trunk/contrib/conf/ Simics 3.0 IA32/AMD64 component configuration  
925 6677 d 11 h palkovsky /kernel/trunk/arch/ia32/src/mm/ Fix e820list on ia32.  
924 6677 d 12 h palkovsky /kernel/trunk/arch/mips32/ Macro redefinition for mips fpu.  
923 6677 d 20 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
922 6679 d 23 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 6680 d 3 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6680 d 8 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 6682 d 10 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6682 d 11 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 6684 d 1 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 6684 d 5 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.)