Michael S. Tsirkin
2020-Jun-09 09:52 UTC
[PATCH v5 0/3] Support virtio cross-device resources
On Tue, Jun 09, 2020 at 10:25:15AM +0900, David Stevens wrote:> This patchset implements the current proposal for virtio cross-device > resource sharing [1]. It will be used to import virtio resources into > the virtio-video driver currently under discussion [2]. The patch > under consideration to add support in the virtio-video driver is [3]. > It uses the APIs from v3 of this series, but the changes to update it > are relatively minor. > > This patchset adds a new flavor of dma-bufs that supports querying the > underlying virtio object UUID, as well as adding support for exporting > resources from virtgpu.Gerd, David, if possible, please test this in configuration with virtual VTD enabled but with iommu_platform=off to make sure we didn't break this config. Besides that, for virtio parts: Acked-by: Michael S. Tsirkin <mst at redhat.com>> [1] https://markmail.org/thread/2ypjt5cfeu3m6lxu > [2] https://markmail.org/thread/p5d3k566srtdtute > [3] https://markmail.org/thread/j4xlqaaim266qpks > > v4 -> v5 changes: > - Remove virtio_dma_buf_export_info. > > David Stevens (3): > virtio: add dma-buf support for exported objects > virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature > drm/virtio: Support virtgpu exported resources > > drivers/gpu/drm/virtio/virtgpu_drv.c | 3 + > drivers/gpu/drm/virtio/virtgpu_drv.h | 20 ++++++ > drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++ > drivers/gpu/drm/virtio/virtgpu_prime.c | 96 +++++++++++++++++++++++++- > drivers/gpu/drm/virtio/virtgpu_vq.c | 55 +++++++++++++++ > drivers/virtio/Makefile | 2 +- > drivers/virtio/virtio.c | 6 ++ > drivers/virtio/virtio_dma_buf.c | 82 ++++++++++++++++++++++ > include/linux/virtio.h | 1 + > include/linux/virtio_dma_buf.h | 37 ++++++++++ > include/uapi/linux/virtio_gpu.h | 19 +++++ > 11 files changed, 321 insertions(+), 4 deletions(-) > create mode 100644 drivers/virtio/virtio_dma_buf.c > create mode 100644 include/linux/virtio_dma_buf.h > > -- > 2.27.0.278.ge193c7cf3a9-goog