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Kirill A. Shutemov d25ef8b86e ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7 
Currently, on ARMv6 and ARMv7, if an application tries to execute
code (or garbage) on non-executable page it hangs. It caused by
incorrect prefetch abort handling. Now every prefetch abort
processes as a translation fault.

To fix this we have to analyze instruction fault status register
to figure out reason why we've got the abort and process it
accordingly.

To make IFSR different from DFSR we set bit 31 which is reserved in
both IFSR and DFSR.

This patch also tries to protect from future hangs on unexpected
exceptions. An application will be killed if unexpected exception
type was received.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 		2009-10-02 22:34:32 +01:00
..
Kconfig ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
Makefile ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
abort-ev4.S
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abort-ev4t.S
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abort-ev5t.S
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abort-ev5tj.S
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abort-ev6.S
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abort-ev7.S
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abort-lv4t.S
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abort-macro.S
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abort-nommu.S
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alignment.c Thumb-2: Implement the unified arch/arm/mm support 2009-07-24 12:32:56 +01:00
cache-fa.S
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cache-feroceon-l2.c
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cache-l2x0.c
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cache-v3.S
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cache-v4.S
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cache-v4wb.S
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cache-v4wt.S
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cache-v6.S
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cache-v7.S Thumb-2: Implement the unified arch/arm/mm support 2009-07-24 12:32:56 +01:00
cache-xsc3l2.c
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context.c cpumask: use mm_cpumask() wrapper: arm 2009-09-24 09:34:49 +09:30
copypage-fa.c
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copypage-feroceon.c
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copypage-v3.c
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copypage-v4mc.c
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copypage-v4wb.c
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copypage-v4wt.c
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copypage-v6.c
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copypage-xsc3.c
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copypage-xscale.c
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discontig.c
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dma-mapping.c nommu: Add noMMU support to the DMA API 2009-07-24 12:35:02 +01:00
extable.c
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fault-armv.c
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fault.c ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7 2009-10-02 22:34:32 +01:00
fault.h
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flush.c cpumask: use mm_cpumask() wrapper: arm 2009-09-24 09:34:49 +09:30
highmem.c ARM: 5691/1: fix cache aliasing issues between kmap() and kmap_atomic() with highmem 2009-09-04 19:20:07 +01:00
init.c Merge branch 'origin' into for-linus 2009-09-24 21:22:33 +01:00
iomap.c
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ioremap.c
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mm.h
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mmap.c ARM: 5740/1: fix valid_phys_addr_range() range check 2009-10-02 22:32:34 +01:00
mmu.c ARM: Don't allow highmem on SMP platforms without h/w TLB ops broadcast 2009-09-28 18:06:20 +01:00
nommu.c nommu: Include asm/setup.h in arch/arm/mm/nommu.c 2009-07-24 12:35:03 +01:00
pabort-legacy.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
pabort-v6.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
pabort-v7.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
pgd.c
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proc-arm6_7.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm7tdmi.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm9tdmi.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm720.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm740.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm920.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm922.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm925.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm926.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm940.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm946.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm1020.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm1020e.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm1022.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-arm1026.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-fa526.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-feroceon.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-macros.S Merge branch 'devel-stable' into devel 2009-09-12 12:02:26 +01:00
proc-mohawk.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-sa110.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-sa1100.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-syms.c [ARM] export __cpu_flush_dcache_page 2009-07-05 15:25:00 +01:00
proc-v6.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-v7.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-xsc3.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
proc-xscale.S ARM: 5727/1: Pass IFSR register to do_PrefetchAbort() 2009-10-02 22:34:32 +01:00
tlb-fa.S
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tlb-v3.S
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tlb-v4.S
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tlb-v4wb.S
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tlb-v4wbi.S
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tlb-v6.S
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tlb-v7.S
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