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

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Message-Id: <20251225121438.38427-1-liaoyu.ly@bytedance.com>
Date: Thu, 25 Dec 2025 20:14:38 +0800
From: Yu Liao <liaoyu.ly@...edance.com>
To: bp@...en8.de,
	linux-kernel@...r.kernel.org
Cc: linux-doc@...r.kernel.org,
	x86@...nel.org,
	corbet@....net,
	wangsiqi.3@...edance.com,
	liaoyu.ly@...edance.com
Subject: [PATCH] Documentation/kernel-parameters: Add tsa under mitigations=off

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]
 
-- 
2.39.5