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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1787814658636158500 From: Marc-Andr=C3=A9 Lureau When a blob resource is backed by udmabuf, the dmabuf fd was never propagated to res->share_handle. This meant the D-Bus display listener could not share the buffer mapping with remote clients, falling back to copying pixel data instead. Set share_handle to the dmabuf fd after successful udmabuf creation, and reset it to SHAREABLE_NONE on teardown. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Akihiko Odaki Reviewed-by: Daniel P. Berrang=C3=A9 --- hw/display/virtio-gpu-udmabuf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabu= f.c index c230509852ff..5d6daa1f7afc 100644 --- a/hw/display/virtio-gpu-udmabuf.c +++ b/hw/display/virtio-gpu-udmabuf.c @@ -91,6 +91,7 @@ static void virtio_gpu_destroy_udmabuf(struct virtio_gpu_= simple_resource *res) if (res->dmabuf_fd >=3D 0) { close(res->dmabuf_fd); res->dmabuf_fd =3D -1; + res->share_handle =3D SHAREABLE_NONE; } } =20 @@ -149,6 +150,7 @@ bool virtio_gpu_init_udmabuf(struct virtio_gpu_simple_r= esource *res) virtio_gpu_destroy_udmabuf(res); return false; } + res->share_handle =3D res->dmabuf_fd; pdata =3D res->remapped; } =20 @@ -182,6 +184,7 @@ void virtio_gpu_fini_udmabuf(VirtIOGPU *g, struct virti= o_gpu_simple_resource *re res->dmabuf_fd !=3D -1) { qemu_dmabuf_close(dmabuf->buf); res->dmabuf_fd =3D -1; + res->share_handle =3D SHAREABLE_NONE; } } =20 --=20 2.55.0.543.g5ebe2ebe4ea8