On 13.08.15 03:15, David Gibson wrote: > ec53500f "kvm: Add VFIO device" added a special KVM pseudo-device which is > used to handle any necessary interactions between KVM and VFIO. > > Currently that device is built on x86 and ARM, but not powerpc, although > powerpc does support both KVM and VFIO. This makes things awkward in > userspace > > Currently qemu prints an alarming error message if you attempt to use VFIO > and it can't initialize the KVM VFIO device. We don't want to remove the > warning, because lack of the KVM VFIO device could mean coherency problems > on x86. On powerpc, however, the error is harmless but looks disturbing, > and a test based on host architecture in qemu would be ugly, and break if > we do need the KVM VFIO device for something important in future. > > There's nothing preventing the KVM VFIO device from being built for > powerpc, so this patch turns it on. It won't actually do anything, since > we don't define any of the arch_*() hooks, but it will make qemu happy and > we can extend it in future if we need to. > > Signed-off-by: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx> > Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx> Paul is going to take care of the kvm-ppc tree for 4.3. Also, ppc kvm patches should get CC on the kvm-ppc@vger mailing list ;). Paul, could you please pick this one up? Thanks! Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
