diff options
Diffstat (limited to 'results/scraper/launchpad-without-comments/1827772')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1827772 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1827772 b/results/scraper/launchpad-without-comments/1827772 new file mode 100644 index 000000000..7c4c0866e --- /dev/null +++ b/results/scraper/launchpad-without-comments/1827772 @@ -0,0 +1,15 @@ +[RFC] dma buf: support sprite plane + +QEMU does not support sprite/overlay in DMA-buf mode for Intel gvt vGPUs. Some use cases relies on sprite plane support, e.g. hw accelerated video playback in Windows 10 guest. + +To support this feature, functions in both kernel and QEMU should be implemented: + +- query support for plane info in kernel: + in vgpu_get_plane_info() of drm/i915/gvt/dmabuf.c, calls to intel_vgpu_decode_sprite_plane() shall be made; + +- struct to hold VFIODMABuf object in QEMU: + in struct VFIODisplay of include/hw/vfio/vfio-common.h; +- copying of data in QEMU: + in vfio_display_get_dmabuf() of hw/vfio/display.c; +- drawing of sprite plane in QEMU: + in vfio_display_dmabuf_update() of hw/vfio/display.c; \ No newline at end of file |