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Date: Mon, 02 Nov 2009 17:22:00 -0600
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] Re: PC machine types switched to SeaBIOS/gPXE
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To: Beth Kon <eak@us.ibm.com>
Cc: Jan Kiszka <jan.kiszka@web.de>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, Gleb Natapov <gleb@redhat.com>, Avi Kivity <avi@redhat.com>

Beth Kon wrote:
> 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 <kevin@koconnor.net>
> 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.

Any thoughts Kevin?

Before this commit, the gPXE e1000 rom was able to successfully netboot 
when selected as a boot device.  With this commit, we get a "device not 
found" error within gPXE when launched as a boot device but when run 
from the gPXE command line, it launches successfully.

Regards,

Anthony Liguori