On 06/14/2018 03:45 PM, David Gibson wrote: >>> To wit, the instructions are recognized and transactions always fail. >>> Which is >>> not a bad way to test the required fallback paths that rarely fail on >>> hardware. >>> ;-) >> >> If TM instructions don't cause an exception, I guess its reasonable to say >> they're supported :) > > That argument has come up before, and I disagree. I don't think it's > reasonable to advertise TM support as available if the instructions > always fail.
Is it possible to turn it on from the command-line? Like one can with -cpu foo,+opt on x86 or -cpu foo,opt=on on s390? r~
