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

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Message-ID: <20100914174814.GC3822@elte.hu>
Date:	Tue, 14 Sep 2010 19:48:14 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Don Zickus <dzickus@...hat.com>, 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


* Some One <some@...re> stripped out all quoted identities and 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.
> 
> BTW southbridges do less and less regarding PCI.

Except WICTCR.

> > These are unchartered waters, but variance in that space is reducing 
> > systematically so it would be worth a shot.
> 
> You don't really need special drivers for AER [...]

On the contrary, we need proper driverization for _everything_ new. 
Embedded x86 is here to stay, so we are abstracting away each and every 
bit of the platform. See struct x86_ops for a highlevel platform driver 
- but a more specific, southbridge-encompassing driver framework can be 
created too.

Thanks,

	Ingo
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