diff options
| author | Borislav Petkov (AMD) <bp@alien8.de> | 2024-09-11 10:53:08 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-06-17 17:17:02 +0200 |
| commit | d8010d4ba43e9f790925375a7de100604a5e2dba (patch) | |
| tree | 82d5d8da2b7df3a1736fa2c784f45d177fb106a0 /Documentation/admin-guide/kernel-parameters.txt | |
| parent | f9af88a3d384c8b55beb5dc5483e5da0135fadbd (diff) | |
x86/bugs: Add a Transient Scheduler Attacks mitigation
Add the required features detection glue to bugs.c et all in order to
support the TSA mitigation.
Co-developed-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f1f2c0874da9..07e22ba5bfe3 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -7488,6 +7488,19 @@ having this key zero'ed is acceptable. E.g. in testing scenarios. + tsa= [X86] Control mitigation for Transient Scheduler + Attacks on AMD CPUs. Search the following in your + favourite search engine for more details: + + "Technical guidance for mitigating transient scheduler + attacks". + + off - disable the mitigation + on - enable the mitigation (default) + user - mitigate only user/kernel transitions + vm - mitigate only guest/host transitions + + tsc= Disable clocksource stability checks for TSC. Format: <string> [x86] reliable: mark tsc clocksource as reliable, this |