ARMv7-A
관련 리눅스 커널 코드
https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/arch/arm/kernel/entry-armv.S#n1236
ARMv8
https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/arch/arm64/kernel/entry.S#n154
ARMv8.html