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Rev Age Author Path Log message Diff Changes
2170 6262 d 12 h jermar /trunk/kernel/ Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.

Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary.
 
/trunk/kernel/arch/ia64/src/mm/as.c
/trunk/kernel/arch/mips32/src/mm/as.c
/trunk/kernel/arch/ppc32/src/mm/as.c
/trunk/kernel/arch/ppc64/src/mm/as.c
/trunk/kernel/arch/sparc64/src/mm/as.c
/trunk/kernel/genarch/src/mm/asid.c
/trunk/kernel/generic/include/mm/as.h
/trunk/kernel/generic/src/mm/as.c
2142 6265 d 19 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
/trunk/kernel/generic/include/mm/as.h
2141 6266 d 11 h jermar /trunk/ The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.

Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache.
 
/trunk/kernel/arch/sparc64/src/mm/cache.S
/trunk/kernel/arch/sparc64/src/mm/cache.c
/trunk/kernel/arch/sparc64/src/mm/cache_asm.S
/trunk/boot/arch/sparc64/loader/asm.h
/trunk/kernel/arch/sparc64/Makefile.inc
/trunk/kernel/arch/sparc64/include/cpu.h
/trunk/kernel/arch/sparc64/include/mm/as.h
/trunk/kernel/arch/sparc64/include/mm/cache.h
/trunk/kernel/arch/sparc64/include/mm/frame.h
/trunk/kernel/arch/sparc64/include/mm/page.h
/trunk/kernel/arch/sparc64/include/mm/tsb.h
/trunk/kernel/arch/sparc64/include/stack.h
/trunk/kernel/arch/sparc64/src/cpu/cpu.c
/trunk/kernel/arch/sparc64/src/mm/as.c
/trunk/kernel/arch/sparc64/src/mm/page.c
/trunk/kernel/arch/sparc64/src/mm/tlb.c
/trunk/kernel/arch/sparc64/src/mm/tsb.c
/trunk/kernel/arch/sparc64/src/smp/ipi.c
/trunk/kernel/arch/sparc64/src/trap/interrupt.c
/trunk/kernel/genarch/src/fb/fb.c
/trunk/kernel/genarch/src/mm/page_ht.c
/trunk/kernel/generic/src/console/klog.c
/trunk/kernel/generic/src/ddi/ddi.c
/trunk/kernel/generic/src/lib/rd.c
/trunk/kernel/generic/src/mm/as.c
/trunk/kernel/generic/src/mm/backend_anon.c
/trunk/kernel/generic/src/mm/backend_elf.c
/trunk/kernel/generic/src/time/clock.c
/trunk/uspace/fb/ega.c
/trunk/uspace/fb/fb.c
/trunk/uspace/fb/main.c
/trunk/uspace/klog/klog.c
/trunk/uspace/libc/arch/sparc64/_link.ld.in
/trunk/uspace/libc/arch/sparc64/include/config.h
/trunk/uspace/libc/arch/sparc64/include/stack.h
/trunk/uspace/libc/generic/as.c
/trunk/uspace/libc/generic/mman.c
/trunk/uspace/libc/generic/time.c
/trunk/uspace/libc/include/as.h
/trunk/uspace/ns/ns.c
/trunk/uspace/rd/rd.c
2134 6267 d 15 h jermar /trunk/kernel/ Reworked handling of illegal virtual aliases caused by frame reuse.
We moved the incomplete handling from backend's frame method to
backend's page_fault method. The page_fault method is the one that
can create an illegal alias if it writes the userspace frame using
kernel address with a different page color than the page to which is
this frame mapped in userspace. When we detect this, we do D-cache
shootdown on all processors (!!!).

If we add code that accesses userspace memory from kernel address
space, we will have to check for illegal virtual aliases at all such
places.

I tested this on a 4-way simulated E6500 and a real-world Ultra 5,
which has unfortunatelly only one processor.

This solves ticket #26.
 
/trunk/kernel/arch/sparc64/include/cpu.h
/trunk/kernel/arch/sparc64/include/interrupt.h
/trunk/kernel/arch/sparc64/include/mm/cache.h
/trunk/kernel/arch/sparc64/src/cpu/cpu.c
/trunk/kernel/arch/sparc64/src/mm/cache.c
/trunk/kernel/arch/sparc64/src/mm/tlb.c
/trunk/kernel/arch/sparc64/src/smp/ipi.c
/trunk/kernel/arch/sparc64/src/trap/interrupt.c
/trunk/kernel/generic/src/mm/backend_anon.c
/trunk/kernel/generic/src/mm/backend_elf.c
2133 6267 d 15 h jermar /trunk/kernel/generic/src/mm/ Coding style and indentation fixes.  
/trunk/kernel/generic/src/mm/as.c
/trunk/kernel/generic/src/mm/frame.c
/trunk/kernel/generic/src/mm/tlb.c
2132 6268 d 21 h jermar /trunk/kernel/generic/src/mm/ Fix coding style in the address space area backends.  
/trunk/kernel/generic/src/mm/backend_anon.c
/trunk/kernel/generic/src/mm/backend_elf.c
/trunk/kernel/generic/src/mm/backend_phys.c
2128 6309 d 15 h jermar /trunk/ Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered.
 
/trunk/boot/arch/arm32
/trunk/boot/arch/arm32/Makefile.inc
/trunk/contrib/toolchain/toolchain.arm32.sh
/trunk/kernel/arch/arm32
/trunk/kernel/arch/arm32/Makefile.inc
/trunk/kernel/arch/arm32/_link.ld.in
/trunk/kernel/arch/arm32/include
/trunk/kernel/arch/arm32/include/arch.h
/trunk/kernel/arch/arm32/include/arg.h
/trunk/kernel/arch/arm32/include/asm.h
/trunk/kernel/arch/arm32/include/atomic.h
/trunk/kernel/arch/arm32/include/barrier.h
/trunk/kernel/arch/arm32/include/byteorder.h
/trunk/kernel/arch/arm32/include/context.h
/trunk/kernel/arch/arm32/include/cpu.h
/trunk/kernel/arch/arm32/include/cycle.h
/trunk/kernel/arch/arm32/include/debug.h
/trunk/kernel/arch/arm32/include/elf.h
/trunk/kernel/arch/arm32/include/exception.h
/trunk/kernel/arch/arm32/include/faddr.h
/trunk/kernel/arch/arm32/include/fpu_context.h
/trunk/kernel/arch/arm32/include/interrupt.h
/trunk/kernel/arch/arm32/include/memstr.h
/trunk/kernel/arch/arm32/include/mm
/trunk/kernel/arch/arm32/include/mm/as.h
/trunk/kernel/arch/arm32/include/mm/asid.h
/trunk/kernel/arch/arm32/include/mm/frame.h
/trunk/kernel/arch/arm32/include/mm/memory_init.h
/trunk/kernel/arch/arm32/include/mm/page.h
/trunk/kernel/arch/arm32/include/mm/tlb.h
/trunk/kernel/arch/arm32/include/proc
/trunk/kernel/arch/arm32/include/proc/task.h
/trunk/kernel/arch/arm32/include/proc/thread.h
/trunk/kernel/arch/arm32/include/types.h
/trunk/kernel/arch/arm32/src
/trunk/kernel/arch/arm32/src/arm32.c
/trunk/kernel/arch/arm32/src/context.S
/trunk/kernel/arch/arm32/src/cpu
/trunk/kernel/arch/arm32/src/cpu/cpu.c
/trunk/kernel/arch/arm32/src/ddi
/trunk/kernel/arch/arm32/src/ddi/ddi.c
/trunk/kernel/arch/arm32/src/dummy.S
/trunk/kernel/arch/arm32/src/mm
/trunk/kernel/arch/arm32/src/mm/as.c
/trunk/kernel/arch/arm32/src/mm/frame.c
/trunk/kernel/arch/arm32/src/mm/page.c
/trunk/kernel/arch/arm32/src/start.S
/trunk/uspace/kbd/arch/arm32
/trunk/uspace/kbd/arch/arm32/include
/trunk/uspace/kbd/arch/arm32/include/kbd.h
/trunk/uspace/kbd/arch/arm32/src
/trunk/uspace/kbd/arch/arm32/src/kbd.c
/trunk/uspace/libc/arch/arm32
/trunk/uspace/libc/arch/arm32/Makefile.inc
/trunk/uspace/libc/arch/arm32/_link.ld.in
/trunk/uspace/libc/arch/arm32/include
/trunk/uspace/libc/arch/arm32/include/atomic.h
/trunk/uspace/libc/arch/arm32/include/config.h
/trunk/uspace/libc/arch/arm32/include/endian.h
/trunk/uspace/libc/arch/arm32/include/faddr.h
/trunk/uspace/libc/arch/arm32/include/limits.h
/trunk/uspace/libc/arch/arm32/include/psthread.h
/trunk/uspace/libc/arch/arm32/include/stackarg.h
/trunk/uspace/libc/arch/arm32/include/syscall.h
/trunk/uspace/libc/arch/arm32/include/thread.h
/trunk/uspace/libc/arch/arm32/include/types.h
/trunk/uspace/libc/arch/arm32/src
/trunk/uspace/libc/arch/arm32/src/dummy.S
/trunk/uspace/libc/arch/arm32/src/entry.s
/trunk/uspace/libc/arch/arm32/src/psthread.S
/trunk/uspace/libc/arch/arm32/src/syscall.c
/trunk/uspace/libc/arch/arm32/src/thread.c
/trunk/uspace/libc/arch/arm32/src/thread_entry.s
/trunk/uspace/softfloat/arch/arm32
/trunk/uspace/softfloat/arch/arm32/include
/trunk/uspace/softfloat/arch/arm32/include/functions.h
/trunk/HelenOS.config
/trunk/Makefile
/trunk/boot/boot.config
/trunk/kernel/generic/include/lib/elf.h
/trunk/kernel/generic/src/mm/frame.c
/trunk/kernel/kernel.config
/trunk/uspace/libc/include/ctype.h
/trunk/uspace/uspace.config
2127 6310 d 1 h decky /trunk/kernel/generic/src/lib/ add forgotten implementation  
/trunk/kernel/generic/src/lib/objc.c
2126 6310 d 11 h decky /trunk/kernel/ small cleanup, more work coming  
/trunk/kernel/generic/include/lib/objc_ext.h
/trunk/kernel/generic/src/lib/objc_ext.c
/trunk/kernel/generic/src/lib/objc.c
/trunk/kernel/Makefile
/trunk/kernel/generic/include/mm/as.h
/trunk/kernel/generic/src/mm/as.c
2125 6310 d 14 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
/trunk/kernel/generic/include/lib/objc.h
/trunk/kernel/generic/src/lib/objc.c
/trunk/contrib/toolchain/toolchain.ia32.sh
/trunk/contrib/toolchain/toolchain.sparc64.sh
/trunk/kernel/Makefile
/trunk/kernel/arch/amd64/Makefile.inc
/trunk/kernel/arch/ia32/Makefile.inc
/trunk/kernel/arch/ia32/src/mm/as.c
/trunk/kernel/arch/ia32xen/Makefile.inc
/trunk/kernel/arch/ia64/Makefile.inc
/trunk/kernel/arch/mips32/Makefile.inc
/trunk/kernel/arch/ppc32/Makefile.inc
/trunk/kernel/arch/ppc64/Makefile.inc
/trunk/kernel/arch/sparc64/Makefile.inc
/trunk/kernel/genarch/include/mm/page_pt.h
/trunk/kernel/genarch/src/mm/as_pt.c
/trunk/kernel/generic/include/memstr.h
/trunk/kernel/generic/include/mm/as.h
/trunk/kernel/generic/include/print.h
/trunk/kernel/generic/src/lib/memstr.c
/trunk/kernel/generic/src/mm/as.c
/trunk/kernel/generic/src/printf/vprintf.c
/trunk/kernel/kernel.config
2124 6310 d 16 h decky /trunk/kernel/generic/ implement simple realloc()  
/trunk/kernel/generic/include/mm/slab.h
/trunk/kernel/generic/src/mm/slab.c
2123 6316 d 19 h decky /trunk/kernel/generic/src/mm/ add forgotten unsigned  
/trunk/kernel/generic/src/mm/frame.c
/trunk/kernel/generic/src/mm/slab.c
2122 6316 d 19 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
/trunk/kernel/generic/include/mm/frame.h
/trunk/kernel/generic/src/mm/frame.c
2121 6316 d 19 h decky /trunk/kernel/generic/src/mm/ remove anonymous structure, add static qualifier  
/trunk/kernel/generic/src/mm/frame.c
2120 6316 d 19 h decky /trunk/kernel/generic/include/syscall/ specify syscall handler arguments  
/trunk/kernel/generic/include/syscall/syscall.h
2119 6316 d 19 h decky /trunk/kernel/generic/src/syscall/ explicit typecast  
/trunk/kernel/generic/src/syscall/syscall.c
2118 6316 d 19 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
/trunk/kernel/generic/src/main/kinit.c
/trunk/kernel/generic/src/proc/scheduler.c
/trunk/kernel/generic/src/proc/task.c
/trunk/kernel/generic/src/proc/thread.c
2117 6316 d 20 h decky /trunk/kernel/generic/src/ddi/ explicit typecast  
/trunk/kernel/generic/src/ddi/irq.c
2116 6316 d 20 h decky /trunk/kernel/generic/src/ddi/ explicit typecast  
/trunk/kernel/generic/src/ddi/ddi.c
2115 6316 d 20 h decky /trunk/kernel/generic/src/cpu/ fix signed/unsigned comparison  
/trunk/kernel/generic/src/cpu/cpu.c

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