linux-kernel - Re: [RFC 5/6] x86, NMI, Add support to notify hardware error with unknown NMI

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Message-ID: <20100915092943.GI16593@elte.hu>
Date:	Wed, 15 Sep 2010 11:29:43 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	Don Zickus <dzickus@...hat.com>, Andi Kleen <andi@...stfloor.org>,
	Huang Ying <ying.huang@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC 5/6] x86, NMI, Add support to notify hardware error with
 unknown NMI


* Cyrill Gorcunov <gorcunov@...il.com> wrote:

> On Tue, Sep 14, 2010 at 02:21:31PM +0200, Ingo Molnar wrote:
> > 
> ... 
> > The proper approach would be not to add hacks to the NMI code but to 
> > implement southbridge drivers - which would also have NMI callbacks. 
> > These are unchartered waters, but variance in that space is reducing 
> > systematically so it would be worth a shot.
> > 
> > Thanks,
> > 
> > 	Ingo
> 
> Hi Ingo,
> 
> while there is a conversation about makeing NMI handler robust/modern 
> or whatever, I think the naming Huang has implemented for NMI 
> Stat&Ctrl registers/ports look quite good and convenient (I thought 
> about this times ago when being merging nmi-32/64 code but didn't 
> implemented it properly). So I presume perhaps we could merge this 
> snippets first? Or I miss something on discussion in general?

Yeah, i'm waiting for Don to pick out the good ones and send them to me 
after a bit of testing (he's been driving this topic lately). We can 
obviously make some progress.

Thanks,

	Ingo
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