From: Fenghua Yu <[email protected]>

The kernel parameter dis_ucode_ldr disables early loading microcode from
initrd. The parameter was introduced earlier by Borislave Petkov.

This patch adds the explanation for this parameter in
Documentation/kernel-parameters.txt for user convenience.

Signed-off-by: Fenghua Yu <[email protected]>
---
 Documentation/kernel-parameters.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/kernel-parameters.txt 
b/Documentation/kernel-parameters.txt
index 5ae8608..eef098f 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -841,6 +841,13 @@ bytes respectively. Such letter suffixes can also be 
entirely omitted.
        dhash_entries=  [KNL]
                        Set number of hash buckets for dentry cache.
 
+       dis_ucode_ldr   [X86]
+                       This parameter disables the early microcode loader.
+                       This is useful mostly in debugging situations where
+                       we want to turn off early microcode loading from the
+                       initrd, as a means to be able to rule out its
+                       influence on the machine.
+
        disable=        [IPV6]
                        See Documentation/networking/ipv6.txt.
 
-- 
1.8.1.2

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