linux-kernel - Re: [PATCH v2 0/7] IOMMU: Groups support

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Message-ID: <1339429021.24037.8.camel@bling.home>
Date:	Mon, 11 Jun 2012 09:37:01 -0600
From:	Alex Williamson <alex.williamson@...hat.com>
To:	Joerg Roedel <joerg.roedel@....com>,
	Alexey Kardashevskiy <aik@...abs.ru>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	David Woodhouse <dwmw2@...radead.org>
Cc:	iommu@...ts.linux-foundation.org, bhelgaas@...gle.com,
	david@...son.dropbear.id.au, konrad.wilk@...cle.com,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	gregkh@...uxfoundation.org, ddutile@...hat.com, liuj97@...il.com
Subject: Re: [PATCH v2 0/7] IOMMU: Groups support

On Wed, 2012-06-06 at 13:05 +0200, Joerg Roedel wrote:
> On Wed, May 30, 2012 at 02:18:29PM -0600, Alex Williamson wrote:
> > v2:
> >  - Trickle down changes from pci_get_dma_source() to better handle
> >    PCI device reference counting in IOMMU driver patches
> 
> Okay, I looked again over the code and looks good for merging to me.

Great, thanks Joerg!

>  The
> IOMMU Groups code depends on changes in the PCI code. We need to work
> out how to merge this.
> 
> Bjorn,
> 
> I need the PCI changes before I can merge the IOMMU Groups code. There
> are two ways that would work for me:
> 
> 	a) You Ack the PCI patch-set from Alex and I put it into my tree
> 	   and merge the IOMMU Group code on-top, or
> 	b) You merge the PCI related patch-set into a seperate branch
> 	   which you can merge into your next-branch and which I can
> 	   pull in to merge IOMMU Groups on-top.
> 
> Please let me know what works best for you.

I also poked Bjorn with a minor v3 spin on his series, no change to this
series.

> What I would also appreciate are a few more Acks from other IOMMU
> maintainers (David W.?) and from the Power side.

Alexey, BenH, can either of you comment on this series from the POWER
side?  I know Alexey has an implementation of VFIO/Qemu device
assignment working on POWER with this series.  David Woodhouse, any
comments?  Thanks,

Alex

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