Re: [Xen-devel] QEMU upstreaming: status and todo

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Jan 05, 2011 at 07:15:14PM +0000, Stefano Stabellini wrote:
> On Wed, 5 Jan 2011, ??ukasz Ole?? wrote:
> > Great job, it sounds really interesting. 
> > 
> > Is it usable in current state? Can I test it on current xen 4.0.x?
> > 
> 
> Yes, it is usable even though without the VGA dirty bits is going to be
> much slower. I suggest to wait until the VGA dirty bits are supported
> before trying to use it, otherwise it only makes sense if you use
> nographic=1.
> It could work with xen 4.0.x but the command line options are different
> and at the moment the only toolstack that supports the new format is
> libxenlight in xen-unstable.
> 
> 
> > Can You write what are the coolest things in upstream qemu?
> > 
>  
> The codebase is much cleaner and easier to work with. This means far
> less bugs and easier development in the future.
> Regarding user visible features, the followings are the firsts that came
> to my mind:
> 
> - multiple vnc connections at the same time;
> 
> - audio over vnc;
> 
> - sdl zoom (you can resize the guest's window, Qemu takes care of the
>   scaling);
> 
> - support for linux aio, this means much faster dma transfers from the guest;
> 
> 
> also several very interesting features are being developed by the Qemu
> Community, they are not ready yet, but they should be useful soon:
> 
> - AHCI emulation (much faster emulated disks);
> 
> - Spice;
> 
> - Q35 chipset emulation (pci express within the guest).
> 

IIRC: SCSI and SAS support aswell..

-- Pasi


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