* [PATCH] Documentation/kernel-parameters: Add tsa under mitigations=off
@ 2025-12-25 12:14 Yu Liao
2026-01-06 22:23 ` Jonathan Corbet
0 siblings, 1 reply; 2+ messages in thread
From: Yu Liao @ 2025-12-25 12:14 UTC (permalink / raw)
To: bp, linux-kernel; +Cc: linux-doc, x86, corbet, wangsiqi.3, liaoyu.ly
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@bytedance.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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] Documentation/kernel-parameters: Add tsa under mitigations=off
2025-12-25 12:14 [PATCH] Documentation/kernel-parameters: Add tsa under mitigations=off Yu Liao
@ 2026-01-06 22:23 ` Jonathan Corbet
0 siblings, 0 replies; 2+ messages in thread
From: Jonathan Corbet @ 2026-01-06 22:23 UTC (permalink / raw)
To: Yu Liao, bp, linux-kernel; +Cc: linux-doc, x86, wangsiqi.3, liaoyu.ly
Yu Liao <liaoyu.ly@bytedance.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@bytedance.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
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