Julien Thierry 6c3e7b2d4e arm64: Fix single stepping in kernel traps
commit 6436beeee5721a8e906e9eabf866f12d04470437 upstream.

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>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-08 07:20:45 +02:00
..
2019-02-20 10:20:53 +01:00
2018-02-28 10:19:44 +01:00
2019-03-23 14:35:21 +01:00
2018-11-13 11:14:50 -08:00
2019-04-17 08:37:54 +02:00