linux-kernel - [PATCH 1/6] x86/Documentation/kernel-parameters.txt: Add wakeup_cpu_via

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Date:	Mon,  4 Jun 2012 11:17:50 -0700
From:	"Fenghua Yu" <fenghua.yu@...el.com>
To:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H Peter Anvin" <hpa@...or.com>,
	"Suresh B Siddha" <suresh.b.siddha@...el.com>,
	"Tony Luck" <tony.luck@...el.com>,
	"Asit K Mallick" <asit.k.mallick@...el.com>,
	"Arjan Dan De Ven" <arjan@...ux.intel.com>
Cc:	"linux-kernel" <linux-kernel@...r.kernel.org>,
	"x86" <x86@...nel.org>, "linux-pm" <linux-pm@...r.kernel.org>,
	"Fenghua Yu" <fenghua.yu@...el.com>
Subject: [PATCH 1/6] x86/Documentation/kernel-parameters.txt: Add wakeup_cpu_via_init kernel parameter help

From: Fenghua Yu <fenghua.yu@...el.com>

The new kernel parameter wakeup_cpu_via_init overrides mwait or nmi method and
forces to wake up offline CPU via INIT, INIT, STARTUP sequence. This is useful
in RAS when a temporary CPU error could be fixed by INIT.

Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
---
 Documentation/kernel-parameters.txt |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2b17e82..8efae55 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3099,6 +3099,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			Format:
 			<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
 
+	wakeup_cpu_via_init [X86]
+			Wake up offline CPU via INIT, INIT, STARTUP sequence.
+
 ______________________________________________________________________
 
 TODO:
-- 
1.6.0.3

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