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Date: Wed, 11 Nov 2009 13:27:07 -0800
Message-ID: <86802c440911111327o49bb2b09xc8ab801ce281d04@mail.gmail.com>
Subject: Re: [stable][PATCH] PCIe hot-plug for Intel IOMMU
From: Yinghai Lu <yhlu.kernel@gmail.com>
To: Fenghua Yu <fenghua.yu@intel.com>,
       "Barnes, Jesse" <jesse.barnes@intel.com>
Cc: Greg KH <gregkh@suse.de>, Andrew Morton <akpm@linux-foundation.org>,
       torvalds@linux-foundation.org, David Woodhouse <dwmw2@infradead.org>,
       jbarnes@virtuousgeek.org, stable@kernel.org,
       iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
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On Wed, Nov 11, 2009 at 7:23 AM, Fenghua Yu <fenghua.yu@intel.com> wrote:
> To support PCIe hot plug in IOMMU, we register a notifier to respond to device
> change action.
>
> When the notifier gets BUS_NOTIFY_UNBOUND_DRIVER, it removes the device from its
> DMAR domain.
>
> A hot added device will be added into an IOMMU domain when it first does IOMMU
> op. So there is no need to add more code for hot add.
>
> Without the patch, after a hot-remove, a hot-added device on the same slot will
> not work.
>
> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>

Tested-by: Yinghai Lu <yinghai@kernel.org>

>
> ---
>
> The patch missed 2.6.32 release. Could it be in 2.6.32 stable?

Jesse,
can you push to Linus?

looks like David is too busy.

YH
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