Comment # 32 on bug 1219180 from Claudio Fontana

(In reply to Fabian Vogt from comment #30)
> (In reply to Claudio Fontana from comment #29)
> > (In reply to Fabian Vogt from comment #28)
> > > (In reply to Dario Faggioli from comment #27)
> > > > (In reply to Fabian Vogt from comment #26)
> > > > > (In reply to Claudio Fontana from comment #25)
> > > > > > I do not see anything to do here, can we close?
> > > > > 
> > > > > The bug report is about efifb not working with qemu-system-aarch64.
> > > > >
> > > > Right, so...
> > > > 
> > > > (In reply to Fabian Vogt from comment #7)
> > > > > So a question for the virtualization team (qemu + ovmf): What's the right
> > > > > controller to use to get this to work? I guess ramfb might work but it's too
> > > > > limited to be usable in practice.
> > > > 
> > > > ...I may still be missing something (not an ARM guy), but my impression is
> > > > that it's either virtio-gpu-pci or nothing (and I'm talking about upstream).
> > > 
> > > There's also ramfb, but that's not really usable in practice.
> > > 
> > > > And I still don't think I understand what you meant with this:
> > > > 
> > > > (In reply to Fabian Vogt from comment #7)
> > > > > That explains it. Looking at the EDK II source, the driver for
> > > > > virtio-gpu-pci does not expose a linear framebuffer, only virtio-vga does
> > > > > (https://github.com/tianocore/edk2/blob/
> > > > > 952b5cf94c8727b65e04d3d507c0134743be2a66/OvmfPkg/Virtio10Dxe/Virtio10.
> > > > > c#L1029). virtio-vga is not available in qemu-system-aarch64 though.
> > > > 
> > > > What is it that we're missing?
> > > 
> > > I guess either virtio-vga support for aarch64 or somehow support for a
> > > linear framebuffer with virtio-gpu-pci.
> > 
> > unfortunately I think if ramfb is not enough, we do not have any other
> > option available for AArch64 at the moment.
> > 
> > Seems that this has been a missing feature on AArch64 for a while, see for
> > example also this bug from 2019 that has a good description:
> > 
> > https://bugzilla.redhat.com/show_bug.cgi?id=1679680
> > 
> > I would have to close this as FEATURE for now, since making progress on this
> > would require implementing a new feature for ARM upstream.
> 
> So where do we go from here? JIRA ticket?

Tf this is something that we need to implement for the products, yes.

Adding a few words about the more general context and the actual use case is
likely to help.