linux-kernel - Re: [Patch] IBM Real-Time "SMI Free" mode driver -v7

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Message-ID: <20101021142523.GA23171@srcf.ucam.org>
Date:	Thu, 21 Oct 2010 15:25:23 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Vernon Mauery <vernux@...ibm.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Randy Dunlap <rdunlap@...otime.net>,
	Linux Documentation <linux-doc@...r.kernel.org>,
	Platform driver x86 <platform-driver-x86@...r.kernel.org>
Subject: Re: [Patch] IBM Real-Time "SMI Free" mode driver -v7

On Thu, Oct 21, 2010 at 07:23:19AM -0700, Vernon Mauery wrote:
> On 21-Oct-2010 02:54 PM, Matthew Garrett wrote:
>> Applied, thanks. It'd be nice if we didn't have to rely on DMI,
>> especially since enterprise customers often end up running later kernels
>
> I am not sure what you mean here by problems with DMI running later  
> kernels.

Oops, sorry! I mean running on older kernels.

>> - is there any other way to determine that this is safe to load? Could
>
> I can't think of anything off the top of my head that would allow us to  
> ensure that this is only loaded on IBM systems.  DMI is pretty good  
> about that.

I'd suggest using DMI to verify that it's an IBM, and perhaps also using 
DMI to check that it's a server or blade rather than a laptop or 
desktop. After that you could just check the ebda rather than having to 
have an entry for every specific machine.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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