Re: [Qemu-devel] vga-pci and MMIO BAR

[Avi Kivity]

On 07/25/2012 06:57 AM, Benjamin Herrenschmidt wrote:
> Hi folks !
> 
> Would there be any objection to adding a second MMIO BAR to qemu-vga
> which mirrors the bochs magic VBE ports ?
> 
> Support for IO space is optional in PCIe and can be problematic on some
> architectures, it would be nice to be able to program the card entirely
> using mmio.

Can we choose a PCIe chipset that does support IO space?

If not, we can add a second BAR, but it should disappear when running an
older machine type.

> Once done, I'd like to look into doing a qemudrmfb similar to the cirrus
> one that pretty much gives you generic KMS support (with RandR) on top
> of vga-pci. This would have the advantage of potentially lifting the
> pitch and size limitations that plague cirrus.

Have a look at qxl.


-- 
error compiling committee.c: too many arguments to function