From: "Fenghua Yu" <fenghua.yu@intel.com>
To: "H. Peter Anvin" <hpa@linux.intel.com>,
"Ingo Molnar" <mingo@elte.hu>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Borislav Petkov" <bp@alien8.de>,
"Henrique de Moraes Holschuh" <hmh@hmh.eng.br>
Cc: "linux-kernel" <linux-kernel@vger.kernel.org>,
"x86" <x86@kernel.org>, "Fenghua Yu" <fenghua.yu@intel.com>
Subject: [PATCH] x86/microcode: add parameter dis_ucode_ldr in kernel-paramenters.txt
Date: Thu, 4 Sep 2014 12:07:06 -0700 [thread overview]
Message-ID: <1409857626-55464-1-git-send-email-fenghua.yu@intel.com> (raw)
From: Fenghua Yu <fenghua.yu@intel.com>
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 <fenghua.yu@intel.com>
---
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
next reply other threads:[~2014-09-04 19:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 19:07 Fenghua Yu [this message]
2014-09-05 8:57 ` Borislav Petkov
2014-09-08 19:09 ` H. Peter Anvin
2014-09-09 6:48 ` Borislav Petkov
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