[RFC PATCH 2/2] docs: Update kernel-parameters.txt for signature verification enhancement

From: Alessandro Carminati (Red Hat)
Date: Thu Sep 14 2023 - 07:28:42 EST


Update kernel-parameters.txt to reflect new deferred signature
verification.
Enhances boot speed by allowing unsigned modules in initrd after
bootloader check.

Signed-off-by: Alessandro Carminati (Red Hat) <alessandro.carminati@xxxxxxxxx>
---
Documentation/admin-guide/kernel-parameters.txt | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 0c38a8af95ce..beec86f0dd05 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3410,6 +3410,15 @@
Note that if CONFIG_MODULE_SIG_FORCE is set, that
is always true, so this option does nothing.

+ module_sig_check_wait=
+ This parameter enables delayed activation of module
+ signature checks, deferring the process until userspace
+ triggers it. Once activated, this setting becomes
+ permanent and cannot be reversed. This feature proves
+ valuable for incorporating unsigned modules within
+ initrd, especially after bootloader verification.
+ By employing this option, boot times can be quicker.
+
module_blacklist= [KNL] Do not load a comma-separated list of
modules. Useful for debugging problem modules.

--
2.34.1