Alex Virtio-wayland been talked about with chromeOS, does anyone know what the difference are
Peter virtio-walyand is just a connection for the display, talking to the display controller of a SoC, it can decide to use the GPU. Virtio-gpu if you want to access features from the guest
Alex this is not either-or, it is both, vsync would be the compositor's problem, if there is no overlay it will send it straight out.
Alex original question, virtio-gpu only support a limited subset of colour formats yuv vs rgb. Peter you can normally use either.
Bill in a multiplane system protected video is probably yuv and feed directly to HW, does wayland have the capability to describe a multiplane system and let the compositor handle it. Weston can do that, but it's not over the protocol.
Wayland is about describing one virtual plane
A protected surface has been added recently
Alex it was an automotive use case.
BIll you often have multiple displays, you only need if multiple vms write to one display.
Illias why multiple VMs, Alex self-driving subsystem wants to warn you vs the song you are playing
Cluster controller would be a safe OS