Re: [RFC PATCH v5 5/5] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions

On Fri, Dec 14, 2018 at 01:57:29PM -0800, Sean Christopherson wrote: > Intel Software Guard Extensions (SGX) SGX introduces a new CPL3-only > enclave mode that runs as a sort of black box shared object that is > hosted by an untrusted normal CPL3 process. > > Enclave transitions have semantics tha

[RFC PATCH v5 5/5] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions

Intel Software Guard Extensions (SGX) SGX introduces a new CPL3-only enclave mode that runs as a sort of black box shared object that is hosted by an untrusted normal CPL3 process. Enclave transitions have semantics that are a lovely blend of SYCALL, SYSRET and VM-Exit. In a non-faulting scenario