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| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] [Intel-gfx] [Announcement] 2015-Q3 release of XenGT - a Mediated Graphics Passthrough Solution from Intel |
| Date: | Thu, 19 Nov 2015 16:49:46 +0100 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 19/11/2015 16:32, Stefano Stabellini wrote: > > In addition to Kevin's replies, I have a high-level question: can VFIO > > be used by QEMU for both KVM and Xen? > > No. VFIO cannot be used with Xen today. When running on Xen, the IOMMU > is owned by Xen. I don't think QEMU command line compatibility between KVM and Xen should be a design goal for GVT-g. Nevertheless, it shouldn't be a problem to use a "virtual" VFIO (which doesn't need the IOMMU, because it uses the MMU in the physical GPU) even under Xen. Paolo
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