2014-10-01 22:35:15

by Greg Kroah-Hartman

[permalink] [raw]
Subject: Re: [PATCH 0/2] iommu/vt-d: Keep RMRR mappings around on driver unbind

On Tue, Sep 30, 2014 at 01:02:01PM +0200, Joerg Roedel wrote:
> Hi,
>
> here is a patch-set to fix an issue recently discovered when
> the Intel IOMMU is in use with devices that need RMRR
> mappings.
>
> The problem is that the RMRR mappings are destroyed when the
> device driver is unbound from the device, causing DMAR
> faults.
>
> To solve this problem a device driver core change is
> necessary to catch the right point in time for the IOMMU
> code to destroy any mappings for a device.
>
> With this patch-set the RMRR mappings are only destroyed
> when the device is actually removed from the system.
>
> Please review.

I have no objection to these, do you want me to take them through my
tree? Or if they are going through some other one feel free to add:

Acked-by: Greg Kroah-Hartman <[email protected]>

To the first patch.

thanks,

greg k-h


2014-10-02 09:20:33

by Jörg Rödel

[permalink] [raw]
Subject: Re: [PATCH 0/2] iommu/vt-d: Keep RMRR mappings around on driver unbind

On Wed, Oct 01, 2014 at 03:35:10PM -0700, Greg Kroah-Hartman wrote:
> I have no objection to these, do you want me to take them through my
> tree? Or if they are going through some other one feel free to add:
>
> Acked-by: Greg Kroah-Hartman <[email protected]>
>
> To the first patch.

Thanks Greg! I added the patches to the IOMMU tree.


Joerg