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

..

abort-ev4.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev4t.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev5t.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev5tj.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-ev6.S

Add core support for ARMv6/v7 big-endian

2009-05-30 14:00:18 +01:00

abort-ev7.S

[ARM] 5227/1: Add the ENDPROC declarations to the .S files

2008-09-01 12:06:34 +01:00

abort-lv4t.S

[ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores.

2006-09-28 20:15:46 +01:00

abort-macro.S

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

abort-nommu.S

[ARM] 5227/1: Add the ENDPROC declarations to the .S files

2008-09-01 12:06:34 +01:00

alignment.c

Thumb-2: Implement the unified arch/arm/mm support

2009-07-24 12:32:56 +01:00

cache-fa.S

ARM: Add support for FA526 v2

2009-03-25 13:10:01 +02:00

cache-feroceon-l2.c

[ARM] Kirkwood: small L2 code cleanup

2009-03-28 22:39:30 -04:00

cache-l2x0.c

[ARM] Convert asm/io.h to linux/io.h

2008-09-06 12:10:45 +01:00

cache-v3.S

[ARM] Remove unnecessary mach/hardware.h includes in arch/arm/mm

2008-11-28 23:20:39 +00:00

cache-v4.S

[ARM] Remove unnecessary mach/hardware.h includes in arch/arm/mm

2008-11-28 23:20:39 +00:00

cache-v4wb.S

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

cache-v4wt.S

[ARM] Remove unnecessary mach/hardware.h includes in arch/arm/mm

2008-11-28 23:20:39 +00:00

cache-v6.S

[ARM] 5488/1: ARM errata: Invalidation of the Instruction Cache operation can fail

2009-04-30 20:12:47 +01:00

cache-v7.S

Thumb-2: Implement the unified arch/arm/mm support

2009-07-24 12:32:56 +01:00

cache-xsc3l2.c

[ARM] xsc3: add highmem support to L2 cache handling code

2009-03-15 21:01:21 -04:00

context.c

cpumask: use mm_cpumask() wrapper: arm

2009-09-24 09:34:49 +09:30

copypage-fa.c

ARM: Add support for FA526 v2

2009-03-25 13:10:01 +02:00

copypage-feroceon.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

copypage-v3.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

copypage-v4mc.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

copypage-v4wb.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

copypage-v4wt.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

copypage-v6.c

[ARM] clearpage: provide our own clear_user_highpage()

2008-11-27 23:53:48 +00:00

copypage-xsc3.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

copypage-xscale.c

[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions

2009-03-12 21:33:03 +00:00

discontig.c

mm: move bootmem descriptors definition to a single place

2008-07-24 10:47:14 -07:00

dma-mapping.c

nommu: Add noMMU support to the DMA API

2009-07-24 12:35:02 +01:00

extable.c

[ARM] Convert asm/uaccess.h to linux/uaccess.h

2008-09-06 11:35:55 +01:00

fault-armv.c

[ARM] 5366/1: fix shared memory coherency with VIVT L1 + L2 caches

2009-01-28 16:55:00 +00:00

fault.c

ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7

2009-10-02 22:34:32 +01:00

fault.h

[ARM] do_bad_area() always takes current and current->active_mm

2006-09-27 16:13:48 +01:00

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

[ARM] Convert asm/io.h to linux/io.h

2008-09-06 12:10:45 +01:00

ioremap.c

omap iommu: simple virtual address space management

2009-05-19 08:23:49 +03:00

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

mm.h

[ARM] fixmap support

2009-03-15 21:01:20 -04:00

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

[ARM] remove memzero()

2008-11-27 12:37:59 +00:00

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

ARM: Add support for FA526 v2

2009-03-25 13:10:01 +02:00

tlb-v3.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v4.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v4wb.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v4wbi.S

kbuild: arm - use generic asm-offsets.h support

2005-09-09 21:08:59 +02:00

tlb-v6.S

arm: Use __INIT macro instead of .text.init.

2009-04-27 19:51:58 -07:00

tlb-v7.S

Check whether the TLB operations need broadcasting on SMP systems

2009-05-30 14:00:14 +01:00