tree 022956462f870882d483fe09492a0c2f679d61eb
parent e28cc0255997e9b770039d87276c1b9fd8bc231d
author Julien Thierry <julien.thierry@arm.com> 1508922273 +0100
committer Will Deacon <will.deacon@arm.com> 1508929053 +0100

arm64: Fix single stepping in kernel traps

Software Step exception is missing after stepping a trapped instruction.

Ensure SPSR.SS gets set to 0 after emulating/skipping a trapped instruction
before doing ERET.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[will: replaced AARCH32_INSN_SIZE with 4]
Signed-off-by: Will Deacon <will.deacon@arm.com>