Re: [PATCH v2] x86: Return to kernel without IRET

From: Steven Rostedt
Date: Sat May 03 2014 - 07:29:56 EST


On Fri, 02 May 2014 21:03:10 -0700
"H. Peter Anvin" <hpa@xxxxxxxxx> wrote:

>
> I'd really like to see a workload which would genuinely benefit before
> adding more complexity. Now... if we can determine that it doesn't harm
> anything and would solve the NMI nesting problem cleaner than the
> current solution, that would justify things, too...
>

As I stated before. It doesn't solve the NMI nesting problem. It only
handles page faults. We would have to implement this for breakpoint
return paths too. Is that a plan as well?

-- Steve
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