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Re: [Qemu-devel] [RFC PATCH v3 0/3] Add vGPU support

From: Tian, Kevin
Subject: Re: [Qemu-devel] [RFC PATCH v3 0/3] Add vGPU support
Date: Wed, 4 May 2016 01:05:36 +0000

> From: Kirti Wankhede
> Sent: Tuesday, May 03, 2016 2:41 AM
> This series adds vGPU support to v4.6 Linux host kernel. Purpose of this 
> series
> is to provide a common interface for vGPU management that can be used
> by different GPU drivers. This series introduces vGPU core module that create
> and manage vGPU devices, VFIO based driver for vGPU devices that are created 
> by
> vGPU core module and update VFIO type1 IOMMU module to support vGPU devices.
> What's new in v3?
> VFIO type1 IOMMU module supports devices which are IOMMU capable. This version
> of patched adds support for vGPU devices, which are not IOMMU capable, to use
> existing VFIO IOMMU module. VFIO Type1 IOMMU patch provide new set of APIs for
> guest page translation.
> What's left to do?
> VFIO driver for vGPU device doesn't support devices with MSI-X enabled.
> Please review.

Thanks Kirti/Neo for your nice work! We are integrating this common
framework with KVMGT. Once ready it'll be released as an experimental
feature in our next community release.

One curious question. There are some additional changes in our side.
What is the best way to collaborate our effort before this series is
accepted in upstream kernel? Do you prefer to receiving patches from
us directly, or having it hosted some place so both sides can contribute?

Of course we'll conduct high-level discussions of our changes and reach
agreement first before merging with your code.


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