Re: [Qemu-devel] Re: qdev property bug?

[Alexander Graf]

Am 14.12.2009 um 11:59 schrieb "Michael S. Tsirkin" <address@hidden>:

> On Mon, Dec 14, 2009 at 11:16:34AM +0100, Gerd Hoffmann wrote:
> > On 12/14/09 10:44, Michael S. Tsirkin wrote:
> > > No, it did not even start booting the kernel. Just gave me blank  
> > > screen.
> >
> > [ testing ]
> >
> > Oh.  That is something completely different.  A bug in the rom  
> > loader.
> > It fails to fit both e1000 (default nic) and virtio-net boot roms  
> > into
> > the option rom area and bails out (before loading seabios).  vl.c
> > doesn't check the return value and happily continues (without bios).
> > Which doesn't work out very well ...
> >
> > With two identical nics the (single) rom fits and qemu boots.
> >
> > Hmm.  Of course vl.c must be fixed to check the return value.
>
> Yes.
>
> > Not sure how to deal with the rom size issue.  The gPXE roms look  
> > quit
> > big compared to the older roms we had.
>
> Hmm, it's a regression then ...

How does real hw handle this? I'm pretty sure most servers these days  
use more option rom space than this. They usually have some onboard  
raid bios, external storage, on-board nic, pci nic, ...

So there must be some way to just have more option rom space.  
Implementing anything else would just be a waste of time. It'd break  
again when ppl do device assignment.

Alex