On Wed, Aug 26, 2015 at 11:34:26AM +0200, Alexander Graf wrote: > > > 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? Sure, I'll do that once I get home (end of this week). Paul. -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
