Messages in this thread | | | From | Andy Lutomirski <> | Subject | Re: [PATCH v36 21/24] x86/vdso: Implement a vDSO for Intel SGX enclave call | Date | Mon, 10 Aug 2020 17:52:09 -0700 |
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> On Aug 10, 2020, at 4:48 PM, Sean Christopherson <sean.j.christopherson@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.
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