Re: [Qemu-devel] Re: PC machine types switched to SeaBIOS/gPXE

[Beth Kon]

Jan Kiszka wrote:
> Stefan Weil wrote:
>   
> > Anthony Liguori schrieb:
> >     
> > > Jan Kiszka wrote:
> > >       
> > > > Anthony Liguori wrote:
> > > >  
> > > >         
> > > > > Hi,
> > > > >
> > > > > I just wanted to let everyone know that I've switched the PC machine
> > > > > type to SeaBIOS and gPXE.  SeaBIOS is a port of the Bochs BIOS to GCC,
> > > > > by Kevin O'Conner, along with quite a lot of clean up and new
> > > > > feature work.
> > > > >
> > > > > gPXE is the new development tree of etherboot which is now
> > > > > deprecated. We've done a lot of testing of and while there are a few
> > > > > outstanding
> > > > > issues, almost everything seems to be working okay.
> > > > >
> > > > > Some known issues:
> > > > > o e1000 pxe booting doesn't seem to work
> > > > > o gPXE does not like the slirp tftp server
> > > > >     
> > > > >           
> > > > Can't confirm, works nicely here with default settings (e1000).
> > > >   
> > > >         
> > > Interesting.  I'll have to look again.
> > >       
> > Hi,
> >
> > it loads the ROM, but ROM and e1000 don't match.
> >     
>
> But they work together if you do not specify '-boot n' and go via the
> command prompt instead.
>
>   
> > I tested with a fresh build.
> >
> > Jan, did you check that qemu uses the correct bios path?
> > Maybe -L <dir> was missing.
> >     
>
> Yes, it's correct and -L makes no difference.
>
> Jan
>
>   
Serendipity allowed us to find this really easily, thanks to some old 
builds lying around...

The following Seabios commit breaks gpxe boot with e1000:

commit a5826b5ad482f44d293387dc7513e5e98802a54e
Author: Kevin O'Connor <address@hidden>
Date:   Sat Oct 24 17:57:29 2009 -0400

   Add simple cooperative threading scheme to allow parallel hw init.
  
   Enable system for running hardware initialization in parallel.
   The yield() call can now round-robin between "threads".
   Rework ata controller init to use a thread per controller.
   Make sure internal drives are registered in a defined order.
   Run keyboard initialization in a thread.
   Rework usb init to use a thread per controller.