From: Fenghua Yu <fenghua.yu@intel.com>
Date: Mon, 19 Apr 2021 21:49:57 +0000 (+0000)
Subject: Documentation/admin-guide: Add bus lock ratelimit
X-Git-Tag: v5.14-rc1~169^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9d839c280b64817345c2fa462c0027a9bd742361;p=thirdparty%2Fkernel%2Flinux.git

Documentation/admin-guide: Add bus lock ratelimit

Since bus lock rate limit changes the split_lock_detect parameter,
update the documentation for the change.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20210419214958.4035512-4-fenghua.yu@intel.com
---

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index cb89dbdedc463..ca94624438b97 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5283,6 +5283,14 @@
 				  exception. Default behavior is by #AC if
 				  both features are enabled in hardware.
 
+			ratelimit:N -
+				  Set system wide rate limit to N bus locks
+				  per second for bus lock detection.
+				  0 < N <= 1000.
+
+				  N/A for split lock detection.
+
+
 			If an #AC exception is hit in the kernel or in
 			firmware (i.e. not while executing in user mode)
 			the kernel will oops in either "warn" or "fatal"