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Date:	Wed, 11 Nov 2009 13:27:07 -0800
From:	Yinghai Lu <>
To:	Fenghua Yu <>,
	"Barnes, Jesse" <>
Cc:	Greg KH <>,
	Andrew Morton <>,,
	David Woodhouse <>,,,,
Subject: Re: [stable][PATCH] PCIe hot-plug for Intel IOMMU

On Wed, Nov 11, 2009 at 7:23 AM, Fenghua Yu <> 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 <>

Tested-by: Yinghai Lu <>

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

can you push to Linus?

looks like David is too busy.

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