Re: [RFC PATCH v2 4/4] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions

[Dave Hansen]

On 12/7/18 10:15 AM, Jethro Beekman wrote:
> This is not sufficient to support the Fortanix SGX ABI calling
> convention, which was designed to be mostly compatible with the SysV
> 64-bit calling convention. The following registers need to be passed in
> to an enclave from userspace: RDI, RSI, RDX, R8, R9, R10. The following
> registers need to be passed out from an enclave to userspace: RDI, RSI,
> RDX, R8, R9.

Are you asking nicely to change the new Linux ABI to be consistent with
your existing ABI?  Or, are you saying that the new ABI *must* be
compatible with this previous out-of-tree implementation?