ARM: Add support for checking access permissions on prefetch aborts

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ARMv6 introduces non-executable mappings, which can cause prefetch aborts
when an attempt is made to execute from such a mapping.  Currently, this
causes us to loop in the page fault handler since we don't correctly
check for proper permissions.

Fix this by checking that VMAs have VM_EXEC set for prefetch aborts.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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Russell King 2009-09-20 13:18:47 +01:00

parent d374bf14a5

commit df297bf6c7

1 changed files with 6 additions and 3 deletions

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arch/arm/mm/fault.c

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