[vbox-dev] Graphic device?

Frank Mehnert Frank.Mehnert at Sun.COM
Thu Dec 18 09:50:25 GMT 2008

On Thursday 18 December 2008, Jun Koi wrote:
> On Thu, Dec 18, 2008 at 5:44 PM, Frank Mehnert <Frank.Mehnert at sun.com> 
> > Jun,
> >
> > On Thursday 18 December 2008, Jun Koi wrote:
> >> I am wondering why VB doesnt use the original video devices from QEMU
> >> (cirrus, vmware, vga), but it has its own PCI video device? What are
> >> the differences with QEMU video devices?
> >
> > Our VGA device is based on the Qemu code but we improved the performance.
> > In contrast to Qemu, VirtualBox knows a so-called 'raw mode', that is,
> > as many code as possible is executed in the guest context. Even parts of
> > the device emulation (including VGA).
> Interesting! How much is that faster than the original QEMU device?

Much faster :)

> Do you have any number?


Seriously: Another reason is that we had to adapt the code to our needs.

Kind regards,

Dr.-Ing. Frank Mehnert    Sun Microsystems    http://www.sun.com/
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