> Has IBM opened up the ZIP and ZAP TCBS to software vendors/developers ?
> It was my understanding that IBM did not want to disclose that.
>
> Is there a documented interface ?
Yes there is a documented interface and IBM does disclose it. First, a little
background... zAAP engines are chosen by the dispatcher to run JAVA work. On
the other hand, zIIP engines are only used to run specially designated (WLM)
enclave SRBs. So zAAP work only runs in task mode and zIIP work only runs in
SRB mode and in both cases the dispatcher chooses whether or not to dispatch
that work on a specialty engine based on availability etc.
To "use" a zAAP engine you don't have to (and *can't*) do anything other than
write in JAVA. The interface for creating zIIP-elligible enclave SRBs is quite
simple and is available to software vendors under license.
CC