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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Breno Leitao <leitao@debian.org>, Borislav Petkov <bp@alien8.de>,
        pawan.kumar.gupta@linux.intel.com
Cc:     pawan.kumar.gupta@linux.intel.com, paul@paul-moore.com,
        leit@meta.com, x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] cpu/bugs: Disable CPU mitigations at compilation time
In-Reply-To: <ZIdJs0F8Ow4sV27r@gmail.com>
References: <20230203120615.1121272-1-leitao@debian.org>
 <87352z7xld.ffs@tglx> <ZIcVoIAQbRl1GTo5@gmail.com>
 <20230612133230.GJZIcebkHxd8QJs0Dv@fat_crate.local>
 <ZIchqLWousxkCqyB@gmail.com>
 <20230612135301.GKZIcjPY0xvbNsiVNd@fat_crate.local>
 <ZIcoss0r/898/CpH@gmail.com>
 <20230612160807.GNZIdC58KQ8IibZjrt@fat_crate.local>
 <ZIdJs0F8Ow4sV27r@gmail.com>
Date:   Mon, 12 Jun 2023 19:26:33 +0200
Message-ID: <877cs87fsm.ffs@tglx>
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On Mon, Jun 12 2023 at 09:37, Breno Leitao wrote:
> On Mon, Jun 12, 2023 at 06:08:07PM +0200, Borislav Petkov wrote:
>> On Mon, Jun 12, 2023 at 07:16:18AM -0700, Breno Leitao wrote:
>> > Sorry, to waht menu specifically?
>> 
>> CONFIG_SPECULATION_MITIGATIONS
>> 
>> It even has the proper text in there, warning people.
>> 
>> menuconfig SPECULATION_MITIGATIONS
>>         bool "Mitigations for speculative execution vulnerabilities"
>>         default y
>>         help
>>           Say Y here to enable options which enable mitigations for
>>           speculative execution hardware vulnerabilities.
>
> I am not sure if these bugs (MDS, TAA) are speculations related. Pawan
> could help us here.

 https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/index.html

might answer your question.