AMD Fusion GPU passthrough to KVM or Xen
- by BigChief
Has anyone successfully gotten a passthrough working with the GPU portion of AMD's Fusion APUs (the E-350 is my target) on top of a Linux hypervisor? IE, I want to dedicate the GPU to one VM only, excluding all other VMs as well as the host. I know PCI passthrough can work with patches / kernel rebuilds for Xen and KVM. However, since the GPU is on the same chip, I don't know if the host OS will see it as PCI.
I know there are a number of tangential issues here, such as:
Poor Fusion drivers in Linux at the moment
Unsuccessful patching efforts seem common
VT-d / IOMMU is required and (from my reading) is supported on the APU, but the motherboard may not offer it
KVM doesn't appear to support primary graphics cards, only secondary graphics cards (described here)
However, I'd like to hear from anyone who has messed with this, even failed attempts. Fedora + KVM is my preferred virtualization platform but I'm willing to change that if it makes a difference.
EDIT: The goal is to do this for a Windows 7 guest (I know it's asking a lot). Regardless, just assume this is HVM, not PV.
