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Russell King ebd4922ecc ARM: implement basic NX support for kernel lowmem mappings 
Add basic NX support for kernel lowmem mappings.  We mark any section
which does not overlap kernel text as non-executable, preventing it
from being used to write code and then execute directly from there.

This does not change the alignment of the sections, so the kernel
image doesn't grow significantly via this change, so we can do this
without needing a config option.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 		2013-12-11 09:53:16 +00:00
..
Kconfig ARM: fix ARCH_IXP4xx usage of ARCH_SUPPORTS_BIG_ENDIAN 2013-10-19 20:46:32 +01:00
Makefile ARM: add support to dump the kernel page tables 2013-12-11 09:53:13 +00:00
abort-ev4.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev4t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5t.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev5tj.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-ev6.S ARM: asm: Add ARM_BE8() assembly helper 2013-10-19 20:46:33 +01:00
abort-ev7.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
abort-lv4t.S ARM: entry: data abort: ensure r5 is preserved by abort functions 2011-07-02 10:56:12 +01:00
abort-macro.S ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort 2011-09-10 23:39:56 +01:00
abort-nommu.S ARM: entry: data abort: tail-call the main data abort handler 2011-07-02 10:56:11 +01:00
alignment.c ARM: alignment: correctly decode instructions in BE8 mode. 2013-10-19 20:46:34 +01:00
cache-aurora-l2.h ARM: 7547/4: cache-l2x0: add support for Aurora L2 cache ctrl 2012-11-06 19:47:35 +00:00
cache-fa.S ARM: mm: implement LoUIS API for cache maintenance ops 2012-09-25 11:20:25 +01:00
cache-feroceon-l2.c ARM: 7696/1: Fix kexec by setting outer_cache.inv_all for Feroceon 2013-04-17 16:53:27 +01:00
cache-l2x0.c Merge branches 'debug-choice', 'devel-stable' and 'misc' into for-linus 2013-09-05 10:34:15 +01:00
cache-nop.S ARM: Add base support for ARMv7-M 2013-04-17 21:38:10 +02:00
cache-tauros2.c ARM: cache: add dt support for tauros2 cache 2012-08-16 16:16:50 +08:00
cache-v4.S ARM: mm: remove broken condition check for v4 flushing 2013-03-26 09:55:34 +00:00
cache-v4wb.S ARM: mm: implement LoUIS API for cache maintenance ops 2012-09-25 11:20:25 +01:00
cache-v4wt.S ARM: mm: implement LoUIS API for cache maintenance ops 2012-09-25 11:20:25 +01:00
cache-v6.S ARM: mm: implement LoUIS API for cache maintenance ops 2012-09-25 11:20:25 +01:00
cache-v7.S ARM: mm: use inner-shareable barriers for TLB and user cache operations 2013-08-12 12:25:45 +01:00
cache-xsc3l2.c ARM: move CP15 definitions to separate header file 2012-03-28 18:30:01 +01:00
context.c ARM: tlb: don't perform inner-shareable invalidation for local TLB ops 2013-08-12 12:25:44 +01:00
copypage-fa.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-feroceon.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-v4mc.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
copypage-v4wb.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-v4wt.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-v6.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
copypage-xsc3.c arm: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
copypage-xscale.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
dma-mapping.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 08:51:29 +09:00
dump.c ARM: add support to dump the kernel page tables 2013-12-11 09:53:13 +00:00
extable.c ARM: 7876/1: clear Thumb-2 IT state on exception handling 2013-11-07 00:15:49 +00:00
fault-armv.c mm: rename USE_SPLIT_PTLOCKS to USE_SPLIT_PTE_PTLOCKS 2013-11-15 09:32:14 +09:00
fault.c arch: mm: pass userspace fault flag to generic fault handler 2013-09-12 15:38:01 -07:00
fault.h ARM: LPAE: Add fault handling support 2011-12-08 10:30:40 +00:00
flush.c Merge branch 'devel-stable' into for-next 2013-06-29 11:44:43 +01:00
fsr-2level.c ARM: LPAE: Move the FSR definitions to separate files 2011-12-08 10:30:37 +00:00
fsr-3level.c ARM: mm: Transparent huge page support for LPAE systems. 2013-06-04 16:52:38 +01:00
highmem.c Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
hugetlbpage.c mm: migrate: check movability of hugepage in unmap_and_move_huge_page() 2013-09-11 15:57:49 -07:00
idmap.c ARM: mm: Move the idmap print to appropriate place in the code 2013-10-10 20:25:06 -04:00
init.c Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 07:55:21 +09:00
iomap.c arm/PCI: remove arch pci_flags definition 2012-02-23 20:18:56 -07:00
ioremap.c ARM: add permission annotations to MT_MEMORY* mapping types 2013-12-11 09:53:14 +00:00
mm.h ARM: DMA-API: better handing of DMA masks for coherent allocations 2013-10-31 14:49:21 +00:00
mmap.c ARM: 7840/1: LPAE: don't reject mapping /dev/mem above 4GB 2013-10-29 11:06:03 +00:00
mmu.c ARM: implement basic NX support for kernel lowmem mappings 2013-12-11 09:53:16 +00:00
nommu.c ARM: Fix nommu.c build warning 2013-11-14 10:59:50 +00:00
pabort-legacy.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v6.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pabort-v7.S ARM: entry: prefetch abort: tail-call the main prefetch abort handler 2011-07-02 10:56:10 +01:00
pgd.c ARM: move CP15 definitions to separate header file 2012-03-28 18:30:01 +01:00
proc-arm7tdmi.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm9tdmi.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm720.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm740.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm920.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm922.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm925.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm926.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm940.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm946.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm1020.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm1020e.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm1022.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-arm1026.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-fa526.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-feroceon.S ARM: 7818/1: feroceon: Add suspend/resume operation 2013-08-20 00:12:52 +01:00
proc-macros.S ARM: 7773/1: PJ4B: Add support for errata 4742 2013-06-24 14:28:46 +01:00
proc-mohawk.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-sa110.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-sa1100.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-syms.c ARM: modules: don't export cpu_set_pte_ext when !MMU 2013-03-26 09:55:34 +00:00
proc-v6.S ARM: asm: Add ARM_BE8() assembly helper 2013-10-19 20:46:33 +01:00
proc-v7-2level.S ARM: 7784/1: mm: ensure SMP alternates assemble to exactly 4 bytes with Thumb-2 2013-07-22 14:29:09 +01:00
proc-v7-3level.S ARM: 7784/1: mm: ensure SMP alternates assemble to exactly 4 bytes with Thumb-2 2013-07-22 14:29:09 +01:00
proc-v7.S ARM: 7885/1: Save/Restore 64-bit TTBR registers on LPAE suspend/resume 2013-11-14 11:13:11 +00:00
proc-v7m.S ARM: ARMv7-M: implement read_cpuid_ext 2013-05-17 11:44:40 +02:00
proc-xsc3.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
proc-xscale.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
tcm.h ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch() 2013-04-17 16:53:24 +01:00
tlb-fa.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v4.S ARM: mm: tlb-v4: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wb.S ARM: mm: tlb-v4wb: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v4wbi.S ARM: mm: tlb-v4wbi: Use the new processor struct macros 2011-07-07 15:31:12 +01:00
tlb-v6.S Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
tlb-v7.S ARM: mm: use inner-shareable barriers for TLB and user cache operations 2013-08-12 12:25:45 +01:00