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Rev Age Author Path Log message Diff
1138 6623 d 11 h jermar /kernel/trunk/ CPU stacks must have two frames on ia64.
Make sure both thread stack frames are mapped in before_thread_runs_arch().
Take STACK_FRAMES into account during kernel memory layout initialization in main_bsp().		  
1137 6623 d 14 h vana /kernel/trunk/arch/ia64/include/ context_set patch in kernel for changed allocation of ia64 RSE and stack  
1124 6626 d 17 h jermar /kernel/trunk/arch/ Small changes.
Make sparc64 and ppc32 compile again.		  
1121 6627 d 6 h jermar /kernel/trunk/ Small textual changes.  
1108 6628 d 5 h jermar /kernel/trunk/ Small PTE_* macros and SET_PTL0_ADDRESS macro changes.  
1107 6628 d 5 h jermar /kernel/trunk/ Small atomic #include and typedef changes.  
1106 6628 d 5 h jermar /kernel/trunk/arch/ Pass either -DCONFIG_PAGE_PT or -DCONFIG_PAGE_HT to the compiler.  
1104 6628 d 10 h jermar /kernel/trunk/ Define atomic_t only once in atomic.h
Change the encapsulated counter type to long so that it supports negative values as well.		  
1080 6633 d 9 h jermar /kernel/trunk/arch/ia64/src/mm/ Fix double page_table_unlock() in ia64 tlb.c.  
1078 6633 d 10 h jermar /kernel/trunk/ Improved uspace threads.
ia64 needs fixing.		  
1070 6633 d 18 h jermar /kernel/trunk/ More checks for address space area conflicts.  
1066 6634 d 2 h jermar /kernel/trunk/ Support for user space threads.  
1059 6634 d 8 h jermar /kernel/trunk/ Clear user address space when creating new page tables.
Fix mapping of l_apic and io_apic on amd64.		  
1056 6634 d 10 h jermar /kernel/trunk/arch/ia64/src/ Slightly optimized version of ivt.S.  
1053 6634 d 11 h vana /kernel/trunk/ Itanium FPU Lazy context switching... but not so much tested  
1044 6634 d 15 h jermar /kernel/trunk/ Page table locking.  
1039 6634 d 16 h decky /kernel/trunk/arch/ update for the use of more init tasks  
1024 6635 d 9 h jermar /kernel/trunk/ Redefine semantics of unary atomic operations.
Add test to verify that an architecture understands the semantics correctly.		  
1023 6635 d 9 h vana /kernel/trunk/ Itanium FPU active context switch  
993 6636 d 8 h jermar /kernel/trunk/arch/ia64/ Fix bug in switch to userspace on ia64: ensure start in bank 1.
Fix bug in tlb_invalidate_all() that cause interrupts to be unconditionally enabled.
Optimize context switching by discarding packed attribute of context structures.		  
979 6636 d 14 h vana /kernel/trunk/arch/ia64/ Itanium FPU context save/restore  
967 6636 d 17 h palkovsky /kernel/trunk/ Allowed userspace to include page.h.  
962 6637 d 6 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
958 6637 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.		  
955 6637 d 8 h palkovsky /kernel/trunk/ Added kernel IPC functionality.  
947 6637 d 17 h vana /kernel/trunk/ Better purge page selection.  
945 6638 d 6 h vana /kernel/trunk/arch/ia64/  
944 6638 d 7 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
940 6638 d 9 h jermar /kernel/trunk/ Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader.		  
938 6638 d 9 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6638 d 10 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
928 6638 d 15 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
923 6639 d 3 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
921 6641 d 10 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6641 d 15 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 6643 d 17 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6643 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 6645 d 7 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 6645 d 11 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 6645 d 14 h bondari /kernel/trunk/ ELF framework for all archs. SPARC V9 not tested to compile.