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

[Jethro Beekman]

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.

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Jethro Beekman | Fortanix

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