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Re: [Qemu-devel] [Xen-devel] [PATCH] xen-qemu: register virtual iommu de

From: Ian Jackson
Subject: Re: [Qemu-devel] [Xen-devel] [PATCH] xen-qemu: register virtual iommu device on qemu pci bus
Date: Thu, 15 Dec 2011 17:33:33 +0000

Wei Wang2 writes ("[Xen-devel] [PATCH] xen-qemu: register virtual iommu device 
on qemu pci bus"):
> Attached patch is for qemu to register iommu device on pci bus. Guest OS 
> requires this to access iommu pci config space in some cases.

Thanks for this submission.

However, we are trying to focus development on the new xen-supporting
upstream qemu branches.

This old qemu branch is basically dead.  We will have to give it
bugfixes and security fixes, it in parallel with the new trees, for a
long time (because old guests may need it).  So for that reason I
would really prefer not to add new features to it.

Would you be able to rebase your work on the upstream qemu ?  You will
need Anthony Perard's PCI passthrough series of course, and you will
also need to liase with qemu upstream (so I've CC'd their list) since
it will be their tree that you'll be targeting.

If there is a particular reason why this work should be in
qemu-xen-unstable then please do say.  I'm open to being persuaded.


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