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Message-ID: <20110622154948.GA3219@srcf.ucam.org>
Date:	Wed, 22 Jun 2011 16:49:48 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Len Brown <lenb@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH 4/4] ACPI, APEI, Add APEI _OSC support

On Wed, Jun 22, 2011 at 10:21:20AM +0800, Huang Ying wrote:

> At least on some of my testing machine, generic _OSC call will not
> return any error even it does not support APEI bit.  So I think
> sometimes it may be helpful to printk something here.  To avoid
> confusion, can we change the message as follow.
> 
> - generic _OSC succeeded, APEI _OSC failed: APEI firmware first mode is
> enabled by APEI bit.
> - generic _OSC failed, APEI _OSC succeeded: APEI firmware first mode is
> enabled by APEI _OSC.

"WHEA _OSC", I think. The UUID here is part of the Microsoft spec, not 
the APEI one.

> - both succeeded: APEI firmware first mode is enabled by APEI bit and
> APEI _OSC.
> - both failed: Failed to enable APEI firmware first mode!

Otherwise, looks good.
-- 
Matthew Garrett | mjg59@...f.ucam.org
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