Re: [PATCH v36 21/24] x86/vdso: Implement a vDSO for Intel SGX enclave call

[Sean Christopherson]

On Tue, Aug 11, 2020 at 09:16:28AM +0200, Jethro Beekman wrote:
> On 2020-08-11 00:23, Sean Christopherson wrote:
> > Another thought would be to wrap sgx_enclave_exception in a struct to give
> > room for supporting additional exit information (if such a thing ever pops
> > up) and to allow the caller to opt in to select behavior, e.g. Jethro's
> > request to invoke the exit handler on IRQ exits.  This is basically the
> > equivalent of "struct kvm_run", minus the vCPU/enclave state.
> 
> Actually, the flag I need is “return from the vdso on IRQ exits” (See Andy's
> email about preferring returns over callbacks). But maybe the flag should be
> “interpret IRQ exit as a normal exit” and let it be handled the same as any
> other exit based on whether an exit handler fnptr was passed or not.

Ya, slip of the tongue, the behavior would apply to both paths.