dis_ucode_ldr was introduced in 65cef13 ("x86, microcode: Add a disable
chicken bit") and will disable microcode loading on x86.  This kernel
parameter is buried in the code and should be added to the Documentation.

Cc: Jonathan Corbet <cor...@lwn.net>
Cc: x...@kernel.org
Cc: linux-...@vger.kernel.org
Signed-off-by: Prarit Bhargava <pra...@redhat.com>
---
 Documentation/kernel-parameters.txt |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/kernel-parameters.txt 
b/Documentation/kernel-parameters.txt
index 1d6f045..34f2afb 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -910,6 +910,8 @@ bytes respectively. Such letter suffixes can also be 
entirely omitted.
                        Disable PIN 1 of APIC timer
                        Can be useful to work around chipset bugs.
 
+       dis_ucode_ldr   [X86] Disable the microcode loader.
+
        dma_debug=off   If the kernel is compiled with DMA_API_DEBUG support,
                        this option disables the debugging code at boot.
 
-- 
1.7.9.3

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