From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755222AbaIDTGG (ORCPT ); Thu, 4 Sep 2014 15:06:06 -0400 Received: from mga09.intel.com ([134.134.136.24]:41424 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755063AbaIDTGE (ORCPT ); Thu, 4 Sep 2014 15:06:04 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,467,1406617200"; d="scan'208";a="475257291" From: "Fenghua Yu" To: "H. Peter Anvin" , "Ingo Molnar" , "Thomas Gleixner" , "Borislav Petkov" , "Henrique de Moraes Holschuh" Cc: "linux-kernel" , "x86" , "Fenghua Yu" Subject: [PATCH] x86/microcode: add parameter dis_ucode_ldr in kernel-paramenters.txt Date: Thu, 4 Sep 2014 12:07:06 -0700 Message-Id: <1409857626-55464-1-git-send-email-fenghua.yu@intel.com> X-Mailer: git-send-email 1.8.0.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Fenghua Yu 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 --- 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