Re: Seeking advice on virtio dmabuf

2021-06-25 Thread Halley Zhao
for the 2nd point, I begin to understand the logic, there are some userspace priv data passed with sgtable between guest and host os; width/height/stride/format and other information can be sent inside these private data. these private data is opaque to kernel driver, doesn't require negotiation f

Seeking advice on virtio dmabuf

2021-06-23 Thread Halley Zhao
Hi Experts: I notice that dmabuf sharing has been supported early this year: https://lists.linuxfoundation.org/pipermail/virtualization/2021-February/052708.html I'd like use it, but have some other thoughts, seeking your advice: 1. How about use shared dmabuf stream as virtual camera on host os s