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authorAlex Williamson <alex.williamson@redhat.com>2023-08-16 15:55:49 -0600
committerCédric Le Goater <clg@redhat.com>2023-10-05 22:04:51 +0200
commit931150e56b056b120c868f94751722710df0b6a7 (patch)
tree9e2c61135053276c81dbc071a91724c2508d549d /hw/vfio
parent2f3913f4b2ad74baeb5a6f1d36efbd9ecdf1057d (diff)
vfio/display: Fix missing update to set backing fields
The below referenced commit renames scanout_width/height to backing_width/height, but also promotes these fields in various portions of the egl interface. Meanwhile vfio dmabuf support has never used the previous scanout fields and is therefore missed in the update. This results in a black screen when transitioning from ramfb to dmabuf display when using Intel vGPU with these features. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1891 Link: https://lists.gnu.org/archive/html/qemu-devel/2023-08/msg02726.html Fixes: 9ac06df8b684 ("virtio-gpu-udmabuf: correct naming of QemuDmaBuf size properties") Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Tested-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/vfio')
-rw-r--r--hw/vfio/display.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/vfio/display.c b/hw/vfio/display.c
index bec864f482..837d9e6a30 100644
--- a/hw/vfio/display.c
+++ b/hw/vfio/display.c
@@ -243,6 +243,8 @@ static VFIODMABuf *vfio_display_get_dmabuf(VFIOPCIDevice *vdev,
dmabuf->dmabuf_id = plane.dmabuf_id;
dmabuf->buf.width = plane.width;
dmabuf->buf.height = plane.height;
+ dmabuf->buf.backing_width = plane.width;
+ dmabuf->buf.backing_height = plane.height;
dmabuf->buf.stride = plane.stride;
dmabuf->buf.fourcc = plane.drm_format;
dmabuf->buf.modifier = plane.drm_format_mod;