Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Subject: Re: [PATCH V2] selftests/vm: Add protection_keys tests to run_vmtests
To:     "Shetty, Kalpana" <kalpana.shetty@amd.com>,
        akpm@linux-foundation.org, shuah@kernel.org, linux-mm@kvack.org,
        linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
        Shuah Khan <skhan@linuxfoundation.org>
References: <20220610090704.296-1-kalpana.shetty@amd.com>
 <8e7fca3a-096c-7d6c-e43b-9292995ab970@linuxfoundation.org>
 <e1703fcf-c5e2-70b1-cae2-30330108ad26@amd.com>
From:   Shuah Khan <skhan@linuxfoundation.org>
Message-ID: <2f157493-02ed-4bc8-6624-b7d077c0d5af@linuxfoundation.org>
Date:   Tue, 14 Jun 2022 11:20:23 -0600
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.8.1
MIME-Version: 1.0
In-Reply-To: <e1703fcf-c5e2-70b1-cae2-30330108ad26@amd.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 6/14/22 6:15 AM, Shetty, Kalpana wrote:
> 
> On 6/14/2022 3:14 AM, Shuah Khan wrote:
>> On 6/10/22 3:07 AM, Kalpana Shetty wrote:
>>> Adding "protected_keys" tests to "run_vmtests.sh" would help out to run all VM related tests
>>> from a single shell script.
>>>
>>
>> Makes sense - can you explain why you can't just run
>> protection_keys_32 without checks? 
> 
> Yes; we can run protection_keys_32 without check.
> 
> 
>> Why are you checking for VADDR64? 
> 
> The check is added to ensure if the system is in 64-bit mode before executing 64-bit binary.
> 
> 

Okay. protection_keys_32 will only be built on 32-bit system and.
protection_keys_64 on 64-bit system.

Won't it be better to check if binary exists and run either _32 or
_64 instead of checking for VADDR64?

thanks,
-- Shuah