linux-kernel - Re: [PATCH v4 1/2] selftests/sgx: Rename 'eenter' and 'sgx_call

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Message-ID: <4b8d9604-8d35-eefe-41cb-511b92a3f086@intel.com>
Date:   Tue, 11 May 2021 11:49:18 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc:     linux-sgx@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        reinette.chatre@...el.com, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] selftests/sgx: Rename 'eenter' and 'sgx_call_vdso'

On 5/7/21 8:56 PM, Jarkko Sakkinen wrote:
> Rename symbols for better clarity:
> 
> * 'eenter' -> 'vdso_sgx_enter_enclave'
> * 'sgx_call_vdso' -> 'sgx_enter_enclave'

Another sentence or two here would do wonders:

'eenter' might be confused for directly calling ENCLU[EENTER].  It does
not.  It calls into the VDSO, which actually has the EENTER instruction.

'sgx_call_vdso' is *only* used for entering the enclave.  It's not some
generic SGX call into the VDSO.

Make the naming reflect that.

Right?