diff options
Diffstat (limited to 'arch/arm/mm/alignment.c')
| -rw-r--r-- | arch/arm/mm/alignment.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index 77cfdbed9501..d073b64ae87e 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -926,8 +926,18 @@ static int __init alignment_init(void) hook_fault_code(1, do_alignment, SIGBUS, BUS_ADRALN, "alignment exception"); - hook_fault_code(3, do_alignment, SIGBUS, BUS_ADRALN, - "alignment exception"); + + /* + * ARMv6K and ARMv7 use fault status 3 (0b00011) as Access Flag section + * fault, not as alignment error. + * + * TODO: handle ARMv6K properly. Runtime check for 'K' extension is + * needed. + */ + if (cpu_architecture() <= CPU_ARCH_ARMv6) { + hook_fault_code(3, do_alignment, SIGBUS, BUS_ADRALN, + "alignment exception"); + } return 0; } |
