linux-kernel - Re: [PATCH v8 3/5] selftests/sgx: Dump enclave memory map

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Message-ID: <b04fa04a-7a5e-94b3-7c72-d6c96f25b49f@intel.com>
Date:   Fri, 11 Jun 2021 17:34:38 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Shuah Khan <skhan@...uxfoundation.org>,
        Jarkko Sakkinen <jarkko@...nel.org>, shuah@...nel.org
Cc:     linux-kselftest@...r.kernel.org, linux-sgx@...r.kernel.org,
        Reinette Chatre <reinette.chatre@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 3/5] selftests/sgx: Dump enclave memory map

On 6/11/21 3:45 PM, Shuah Khan wrote:
>>
>>   @@ -167,6 +169,18 @@ FIXTURE_SETUP(enclave)
>>       memset(&self->run, 0, sizeof(self->run));
>>       self->run.tcs = self->encl.encl_base;
>>   +    maps_file = fopen("/proc/self/maps", "r");
> 
> I almost applied these. Does this require root access, if so,
> please add logic to skip the test if non-root user runs it.
> 
> Same comments for all other paths that might require root access.

This specifically doesn't require root.  Anything can read its own
/proc/self/maps file.