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Re: [Xen-devel] [PATCH 2/3] remove saving/restoring method in Xend.

On 23/04/2009 09:27, "Yuji Shimada" <shimada-yxb@xxxxxxxxxxxxxxx> wrote:

> OK, I understand that my patches are also big. But I'm worried about
> one problem for Xen 3.4. The problem is that devices are deassigned
> before the reset on current Xen. Dom0 memory may be broken by DMA if
> the problem is not fixed.
> My patches fix the problem. I mean that devices are deassigned after
> the reset with my patches.
> I can work on making the patch just changing order of resetting/
> deassigning devices if you need the fix for Xen 3.4.

If we stick with the existing pciback mechanisms and interfaces for 3.4
(which is preferable at this point) will we simply break 3.4 branch as soon
as the new pciback patches go into linux-2.6.18-xen when 3.5 opens? Or is
there a story on backward compatibility between different pciback/xend

 -- Keir

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