Documentation/kernel-parameters: Add tsa under mitigations=off

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

Posted by Yu Liao 1 month, 1 week ago

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

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

Posted by Jonathan Corbet 1 month ago

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