linux-kernel - Re: [PATCH v7 1/4] selftests/sgx: Rename 'eenter' and 'sgx_call

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Date:   Wed, 9 Jun 2021 14:02:00 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>
Cc:     shuah@...nel.org, linux-kselftest@...r.kernel.org,
        linux-sgx@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 1/4] selftests/sgx: Rename 'eenter' and 'sgx_call_vdso'

Hi Jarkko,

On 6/9/2021 6:00 AM, Jarkko Sakkinen wrote:
> On Mon, Jun 07, 2021 at 09:28:56AM -0700, Reinette Chatre wrote:
>> Hi Jarkko,
>>
>> On 5/26/2021 5:47 AM, Jarkko Sakkinen wrote:
>>> diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h
>>> index 67211a708f04..68672fd86cf9 100644
>>> --- a/tools/testing/selftests/sgx/main.h
>>> +++ b/tools/testing/selftests/sgx/main.h
>>> @@ -35,7 +35,7 @@ bool encl_load(const char *path, struct encl *encl);
>>>    bool encl_measure(struct encl *encl);
>>>    bool encl_build(struct encl *encl);
>>> -int sgx_call_vdso(void *rdi, void *rsi, long rdx, u32 function, void *r8, void *r9,
>>> -		  struct sgx_enclave_run *run);
>>> +int sgx_enter_enclave(void *rdi, void *rsi, long rdx, u32 function, void *r8, void *r9,
>>> +		      struct sgx_enclave_run *run);
>>
>> Is there a reason why all registers except rdx are "void *"?
> 
> Evolution? It's test code.
> 
> There's neither reason to change this for no reason.
> 

One reason would be to make the code consistent. This would reduce 
confusion.

Reinette