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Rev Age Author Path Log message Diff
990 6668 d 20 h decky /kernel/trunk/ ppc32: initial stack, memory barriers, atomic operations, stack offset fix  
987 6668 d 23 h decky /kernel/trunk/arch/ppc32/ ppc32: initial exception support  
984 6669 d 0 h palkovsky /kernel/trunk/arch/ Fixed invlpg for ia32 & amd64.  
983 6669 d 0 h palkovsky /kernel/trunk/ Fixed shrinking of as area.  
982 6669 d 0 h decky /kernel/trunk/arch/ppc32/ ppc32: initial I/O support  
980 6669 d 1 h palkovsky /kernel/trunk/ Small speed update of ipc.
Fixed some bugs regarding pages in mremap.		  
979 6669 d 1 h vana /kernel/trunk/arch/ia64/ Itanium FPU context save/restore  
977 6669 d 1 h jermar /kernel/trunk/ Add sys_mremap() syscall.  
972 6669 d 4 h decky /kernel/trunk/arch/ppc32/ ppc32: move kernel one frame up
frame zones initialization		  
970 6669 d 4 h decky /kernel/trunk/arch/ppc32/ ppc32: get memory map from loader  
967 6669 d 5 h palkovsky /kernel/trunk/ Allowed userspace to include page.h.  
962 6669 d 18 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
959 6669 d 19 h palkovsky /kernel/trunk/ New synchronous ipc.
Widened syscall to support up to 5 parameters.		  
958 6669 d 19 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 6669 d 20 h decky /kernel/trunk/arch/ run ppc32 kernel above 2 GB  
955 6669 d 20 h palkovsky /kernel/trunk/ Added kernel IPC functionality.  
952 6669 d 23 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
951 6670 d 0 h decky /kernel/trunk/arch/ppc32/ ppc32 boots again (temporarily)  
947 6670 d 5 h vana /kernel/trunk/ Better purge page selection.  
945 6670 d 18 h vana /kernel/trunk/arch/ia64/  
944 6670 d 19 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
941 6670 d 20 h palkovsky /kernel/trunk/ Fixed mips elf loading.  
940 6670 d 21 h jermar /kernel/trunk/ Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader.		  
938 6670 d 21 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6670 d 22 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
934 6670 d 22 h decky /kernel/trunk/arch/ppc32/ remove all OpenFirmware bindings from ppc32 kernel code
kernel now runs in real mode (ppc32)		  
928 6671 d 2 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
925 6671 d 5 h palkovsky /kernel/trunk/arch/ia32/src/mm/ Fix e820list on ia32.  
924 6671 d 7 h palkovsky /kernel/trunk/arch/mips32/ Macro redefinition for mips fpu.  
923 6671 d 15 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
921 6673 d 22 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6674 d 3 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 6676 d 4 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6676 d 5 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 6677 d 19 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 6677 d 23 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 6678 d 2 h bondari /kernel/trunk/ ELF framework for all archs. SPARC V9 not tested to compile.  
906 6680 d 15 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		  
904 6680 d 20 h jermar /kernel/trunk/arch/ia64/src/mm/ ia64 fix in page.c
== (comparison) was used istead of = (assignment).		  
903 6680 d 22 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Add code needed for running multiple address spaces and location of kernel stack
after switch from userspace.