Enabling this feature would eliminate data copies from the resource object in the Guest to the shadow resource in Qemu. This patch series however adds support only for Blobs of type VIRTIO_GPU_BLOB_MEM_GUEST with property VIRTIO_GPU_BLOB_FLAG_USE_SHAREABLE.
Most of the patches in this series are a rebased, refactored and bugfixed versions of Gerd Hoffmann's patches located here: https://gitlab.freedesktop.org/virgl/qemu/-/commits/virtio-gpu-next v2: - Moved dpy_gl_update from set_scanout to resource_flush - Dropped the modifier - Rebase and other minor refactoring Cc: Gerd Hoffmann <kra...@redhat.com> Cc: Marc-André Lureau <marcandre.lur...@redhat.com> Cc: Dongwon Kim <dongwon....@intel.com> Cc: Tina Zhang <tina.zh...@intel.com> Vivek Kasireddy (12): ui: Get the fd associated with udmabuf driver virtio-gpu: Add udmabuf helpers virtio-gpu: Add virtio_gpu_find_check_resource virtio-gpu: Refactor virtio_gpu_set_scanout virtio-gpu: Refactor virtio_gpu_create_mapping_iov virtio-gpu: Add initial definitions for blob resources virtio-gpu: Add virtio_gpu_resource_create_blob ui/pixman: Add qemu_pixman_to_drm_format() virtio-gpu: Add helpers to create and destroy dmabuf objects virtio-gpu: Factor out update scanout virtio-gpu: Add virtio_gpu_set_scanout_blob virtio-gpu: Update cursor data using blob hw/display/meson.build | 2 +- hw/display/trace-events | 2 + hw/display/virtio-gpu-3d.c | 3 +- hw/display/virtio-gpu-base.c | 3 + hw/display/virtio-gpu-udmabuf.c | 275 ++++++++++++++ hw/display/virtio-gpu.c | 436 ++++++++++++++++++----- include/hw/virtio/virtio-gpu-bswap.h | 16 + include/hw/virtio/virtio-gpu.h | 40 ++- include/standard-headers/linux/udmabuf.h | 32 ++ include/ui/console.h | 3 + include/ui/qemu-pixman.h | 1 + scripts/update-linux-headers.sh | 3 + ui/meson.build | 1 + ui/qemu-pixman.c | 35 +- ui/udmabuf.c | 40 +++ 15 files changed, 781 insertions(+), 111 deletions(-) create mode 100644 hw/display/virtio-gpu-udmabuf.c create mode 100644 include/standard-headers/linux/udmabuf.h create mode 100644 ui/udmabuf.c -- 2.26.2
