linux-kernel - Re: [PATCH] Documentation/kernel-parameters: Add tsa under mitigations=off

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Message-ID: <87h5sybct0.fsf@trenco.lwn.net>
Date: Tue, 06 Jan 2026 15:23:39 -0700
From: Jonathan Corbet <corbet@....net>
To: Yu Liao <liaoyu.ly@...edance.com>, bp@...en8.de,
 linux-kernel@...r.kernel.org
Cc: linux-doc@...r.kernel.org, x86@...nel.org, wangsiqi.3@...edance.com,
 liaoyu.ly@...edance.com
Subject: Re: [PATCH] Documentation/kernel-parameters: Add tsa under
 mitigations=off

Yu Liao <liaoyu.ly@...edance.com> writes:

> On X86 AMD systems, mitigations=off also disables the Transient
> Scheduler Attacks (TSA) mitigation. Add it to the list.
>
> Signed-off-by: Yu Liao <liaoyu.ly@...edance.com>
> ---
>  Documentation/admin-guide/kernel-parameters.txt | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index a8d0afde7f85..f4a2bf906bf3 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -3998,6 +3998,7 @@ Kernel parameters
>  					       spectre_v2_user=off [X86]
>  					       srbds=off [X86,INTEL]
>  					       ssbd=force-off [ARM64]
> +					       tsa=off [X86,AMD]
>  					       tsx_async_abort=off [X86]
>  					       vmscape=off [X86]

Applied, thanks.

jon