Re: [virtio-dev] [PATCH] virtio-gpu: add shared resource feature

[Gerd Hoffmann <kraxel@redhat.com>]

  Hi,

> > > Do we already have a mechanism
> > > to import memory to virtio-gpu via importing a bo handle from somewhere
> > > else?
> >
> > Inside the guest?  Import is not working yet, that needs another update
> > (blob resources) due to current virtio-gpu resources requiring a format
> > at creation time and dmabufs not having one.
> >
> >
> Gotcha, I was just poking around related code and it looked like I could
> use a resource w/ R8 format and width = bytes.

Yep, that trick might work for some use cases.  But mapping such an
imported dma-buf to a scanout isn't going to work for example ...

cheers,
  Gerd