On 30 December 2017 at 22:56, Michael Weiser <michael.wei...@gmx.de> wrote: > ldxp loads two consecutive doublewords from memory regardless of CPU > endianness. On store, stlxp currently assumes to work with a 128bit > value and consequently switches order in big-endian mode. With this > change it packs the doublewords in reverse order in anticipation of the > 128bit big-endian store operation interposing them so they end up in > memory in the right order. This makes it work for both MTTCG and !MTTCG. > It effectively implements the ARM ARM STLXP operation pseudo-code: > > data = if BigEndian() then el1:el2 else el2:el1; > > With this change an aarch64_be Linux 4.14.4 kernel succeeds to boot up > in system emulation mode. > > Signed-off-by: Michael Weiser <michael.wei...@gmx.de>
Thanks, applied to target-arm.next (with the typo rth pointed out fixed). -- PMM
