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Subject: Re: [RFC PATCH v2 18/19] x86/mm: Add PKS table soft mode
To:     Rick Edgecombe <rick.p.edgecombe@intel.com>, dave.hansen@intel.com,
        luto@kernel.org, peterz@infradead.org, x86@kernel.org,
        akpm@linux-foundation.org, keescook@chromium.org,
        shakeelb@google.com, vbabka@suse.cz, rppt@kernel.org
Cc:     linux-mm@kvack.org, linux-hardening@vger.kernel.org,
        kernel-hardening@lists.openwall.com, ira.weiny@intel.com,
        dan.j.williams@intel.com, linux-kernel@vger.kernel.org
References: <20210830235927.6443-1-rick.p.edgecombe@intel.com>
 <20210830235927.6443-19-rick.p.edgecombe@intel.com>
From:   Randy Dunlap <rdunlap@infradead.org>
Message-ID: <052d20c6-347d-6340-1a62-d62bf53d3315@infradead.org>
Date:   Mon, 30 Aug 2021 20:49:56 -0700
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On 8/30/21 4:59 PM, Rick Edgecombe wrote:
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 7902fce7f1da..8bb290fee77f 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -4254,6 +4254,10 @@
>   	nopti		[X86-64]
>   			Equivalent to pti=off
>   
> +	nopkstables	[X86-64] Disable PKS page table protection
> +
> +	pkstablessoft	[X86-64] Warn instead of oops on pks tables violations

preferably		                                 PKS

> +
>   	pty.legacy_count=
>   			[KNL] Number of legacy pty's. Overwrites compiled-in
>   			default number.


-- 
~Randy