Re: [PATCH v15 23/23] x86/sgx: Driver documentation

[Jarkko Sakkinen]

On Mon, Nov 05, 2018 at 12:27:11PM -0800, Dave Hansen wrote:
> This patch set establishes an ABI.  It basically sets in stone a bunch
> of behaviors that the enclave, the kernel, and the out-of-enclave code
> must follow.
> 
> There are a bunch of things that the enclave can do to %rsp or %rip, for
> instance, that it is capable and/or permitted to do.

Just want to ask a follow-up from this so that I understand you better.
Now we are talking abou ioctl API, right? I'm not exactly sure how
EENTER/EEXIT/ERESUME behavior connects to that. I understand the tail
of your message but this paragraph left me a bit puzzled...

/Jarkko