[PATCH 5.15 67/69] docs/kernel-parameters: Update descriptions for "mitigations=" param with retbleed

From: Greg Kroah-Hartman
Date: Mon Aug 01 2022 - 08:07:56 EST


From: Eiichi Tsukata <eiichi.tsukata@xxxxxxxxxxx>

commit ea304a8b89fd0d6cf94ee30cb139dc23d9f1a62f upstream.

Updates descriptions for "mitigations=off" and "mitigations=auto,nosmt"
with the respective retbleed= settings.

Signed-off-by: Eiichi Tsukata <eiichi.tsukata@xxxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: corbet@xxxxxxx
Link: https://lore.kernel.org/r/20220728043907.165688-1-eiichi.tsukata@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/kernel-parameters.txt | 2 ++
1 file changed, 2 insertions(+)

--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3020,6 +3020,7 @@
no_entry_flush [PPC]
no_uaccess_flush [PPC]
mmio_stale_data=off [X86]
+ retbleed=off [X86]

Exceptions:
This does not have any effect on
@@ -3042,6 +3043,7 @@
mds=full,nosmt [X86]
tsx_async_abort=full,nosmt [X86]
mmio_stale_data=full,nosmt [X86]
+ retbleed=auto,nosmt [X86]

mminit_loglevel=
[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this