Re: [stable][PATCH] PCIe hot-plug for Intel IOMMU

[David Woodhouse]

On Wed, 2009-11-11 at 07:23 -0800, 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 <fenghua.yu@xxxxxxxxx>
> 
> ---
> 
> The patch missed 2.6.32 release. Could it be in 2.6.32 stable?

Not strictly a regression, but it would make a lot of sense.

Fenghua, please could you test what's in
git://git.infradead.org/~dwmw2/iommu-2.6.32.git on IA64 before I send it
to Linus? There are a couple of other fixes for HP brain damage there.


-- 
dwmw2

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