> On Aug 10, 2020, at 4:48 PM, Sean Christopherson > <sean.j.christopher...@intel.com> wrote: > > On Mon, Aug 10, 2020 at 04:08:46PM -0700, Andy Lutomirski wrote: >> What am I missing? I still don't really understand why we are >> supporting this mechanism at all. Just the asm code to invoke the >> callback seems to be about half of the entire function. > > Because the Intel SDK (and other SDKs?) wants to use the host stack to pass > parameters out of the enclave.
Ugh, right. I forgot about that particular abomination. I suppose that passing a context pointer would be reasonable.
