v2: - Use atomic ops for balloon inhibit counter (Peter) - Allow endpoint driver opt-in for ballooning, vfio-ccw opt-in by default, vfio-pci opt-in by device option, only allowed for mdev devices, no support added for platform as there are no platform mdev devices. See patch 3/4 for detailed explanation why ballooning and device assignment typically don't mix. If this eventually changes, flags on the iommu info struct or perhaps device info struct can inform us for automatic opt-in. Thanks, Alex --- Alex Williamson (4): balloon: Allow nested inhibits kvm: Use inhibit to prevent ballooning without synchronous mmu vfio: Inhibit ballooning based on group attachment to a container vfio/ccw/pci: Allow devices to opt-in for ballooning accel/kvm/kvm-all.c | 4 ++++ balloon.c | 13 ++++++++++--- hw/vfio/ccw.c | 9 +++++++++ hw/vfio/common.c | 26 ++++++++++++++++++++++++++ hw/vfio/pci.c | 26 +++++++++++++++++++++++++- hw/vfio/trace-events | 1 + hw/virtio/virtio-balloon.c | 4 +--- include/hw/vfio/vfio-common.h | 2 ++ 8 files changed, 78 insertions(+), 7 deletions(-)