linux-kernel - Re: [RFC PATCH] x86 NMI-safe INT3 and Page Fault (v2)

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Message-ID: <48062343.50606@goop.org>
Date:	Wed, 16 Apr 2008 09:03:15 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Mathieu Desnoyers <compudj@...stal.dyndns.org>,
	Andi Kleen <andi@...stfloor.org>, akpm@...l.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	"Frank Ch. Eigler" <fche@...hat.com>, linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Zachary Amsden <zach@...are.com>
Subject: Re: [RFC PATCH] x86 NMI-safe INT3 and Page Fault (v2)

Ingo Molnar wrote:
> * Ingo Molnar <mingo@...e.hu> wrote:
>
>   
>> thanks Mathieu, i've picked this up into x86.git for more testing.
>>     
>
> ... but had to drop it due to missing PARAVIRT support which broke the 
> build. I guess on paravirt we could just initially define 
> INTERRUPT_RETURN_NMI_SAFE to iret, etc.?

I have not yet implemented Xen's support for paravirtual NMI, so there's 
no scope for breaking anything from my perspective.  When I get around 
to NMI, I'll work around whatever's there.  I don't know if lguest or 
VMI has any guest NMI support.

    J
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