linux-kernel - Re: [RFC][PATCH 0/3] Add support for non-CPU TLBs in MMU-Notifiers

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Date:	Wed, 2 Nov 2011 10:57:40 +0100
From:	"Roedel, Joerg" <Joerg.Roedel@....com>
To:	Robin Holt <holt@....com>
CC:	Andrea Arcangeli <aarcange@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Mel Gorman <mel@....ul.ie>, Nick Piggin <npiggin@...nel.dk>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"joro@...tes.org" <joro@...tes.org>
Subject: Re: [RFC][PATCH 0/3] Add support for non-CPU TLBs in MMU-Notifiers

On Wed, Nov 02, 2011 at 05:46:02AM -0400, Robin Holt wrote:
> On Fri, Oct 21, 2011 at 02:21:45PM +0200, Joerg Roedel wrote:
> > Hi,
> > 
> > this is my first attempt to add support for non-CPU TLBs to the
> > MMU-Notifier framework. This will be used by the AMD IOMMU driver for
> > the next generation of hardware. The next version of the AMD IOMMU can
> > walk page-tables in AMD64 long-mode format (with setting
> > accessed/dirty-bits atomically) and save the translations in its own
> > TLB. Page faulting for IO devices is supported too. This will be used to
> > let hardware devices share page-tables with CPU processes and access
> > their memory directly. Please look at
> > 
> > 	http://support.amd.com/us/Processor_TechDocs/48882.pdf
> 
> ...
> 
> Did this patch set get any review or traction?  Perhaps you should have
> included the linux-mm@...ck.org mailing list.

I have included this mailing list in my post afaics. I talked with
Andrea Arcangeli about these patches at LinuxCon in Prague and will post
a new version based on his comments.


	Joerg

-- 
AMD Operating System Research Center

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