linux-kernel - Re: [RFC PATCH 0/5] amd_iommu: Refactor IOMMU group and support virtual aliases

Open Source and information security mailing list archives

Date:	Thu, 18 Oct 2012 15:29:10 -0600
From:	Alex Williamson <alex.williamson@...hat.com>
To:	Joerg.Roedel@....com
Cc:	florian@...inger.net, iommu@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/5] amd_iommu: Refactor IOMMU group and support
 virtual aliases

Joerg,

I think this series is good-to-go, modulo any testing you may be able to
do on it.  I'm going to be offline for a couple weeks so feel free to
incorporate this RFC directly or I can re-spin something when I'm back.
Thanks,

Alex

On Mon, 2012-10-08 at 22:49 -0600, Alex Williamson wrote:
> This series is meant to refactor IOMMU group support in amd_iommu
> to properly support virtual aliases.  If multiple devices alias to
> the same virtual alias, they should be grouped together.  This code
> also verifies whether the alias should be the root of the group vs
> devices above the alias.
> 
> This seems to do the right thing on my system, but that's not saying
> a lot since it doesn't do anything interesting with aliases.  I'd
> appreciate if Joerg and Florian could test this on their systems.
> Thanks,
> 
> Alex
> 
> ---
> 
> Alex Williamson (5):
>       amd_iommu: Properly account for virtual aliases in IOMMU groups
>       amd_iommu: Split IOMMU group allocation and attach
>       amd_iommu: Split upstream bus device lookup
>       amd_iommu: Split IOMMU Group topology walk
>       amd_iommu: Split IOMMU group initialization
> 
> 
>  drivers/iommu/amd_iommu.c       |  184 ++++++++++++++++++++++++++++++---------
>  drivers/iommu/amd_iommu_types.h |    1 
>  2 files changed, 142 insertions(+), 43 deletions(-)
> _______________________________________________
> iommu mailing list
> iommu@...ts.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/iommu

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