This 3 patch series is the counterpart for this other series: https://lists.nongnu.org/archive/html/qemu-devel/2021-06/msg02906.html It makes it possible for the Guest to wait until the Host has completely consumed its FB before reusing it again thereby ensuring that both the parties don't access it at the same time. Cc: Gerd Hoffmann <kraxel@xxxxxxxxxx> Cc: Dongwon Kim <dongwon.kim@xxxxxxxxx> Cc: Tina Zhang <tina.zhang@xxxxxxxxx> Vivek Kasireddy (3): drm/virtio: Add fences for Guest blobs drm/virtio: Prepare resource_flush to accept a fence drm/virtio: Add the fence in resource_flush if present drivers/gpu/drm/virtio/virtgpu_drv.h | 4 +- drivers/gpu/drm/virtio/virtgpu_plane.c | 64 ++++++++++++++++++++------ drivers/gpu/drm/virtio/virtgpu_vq.c | 7 ++- 3 files changed, 59 insertions(+), 16 deletions(-) -- 2.30.2
